Cooperating Technical Partner 2018 Business Plan

State of Illinois

Department of Natural Resources Office of Water Resources

University of Illinois Prairie Research Institute Illinois State Water Survey

November 2017

Contents Executive Summary ....................................................................................................................... i Coordination of Cooperating Technical Partners ........................................................................... i Structure and Programs ................................................................................................................ 1

Illinois Department of Natural Resources/Offices of Water Resources ..................................... 1

Illinois State Water Survey ........................................................................................................ 7

Capabilities and Resources ........................................................................................................ 10

IDNR/OWR Capabilities and Resources ................................................................................. 10

ISWS/CHAMP Capabilities and Resources ............................................................................ 12

Program Activities ....................................................................................................................... 13

IDNR/OWR Program Activities ................................................................................................ 13

ISWS/CHAMP Activities Related to Flooding and Flood Risk ................................................. 18

State of Illinois Goals .................................................................................................................. 20

Public Safety ........................................................................................................................... 20

Flood Risk Reduction .............................................................................................................. 20

Water Supply Planning ........................................................................................................... 20

Floodplain Management ......................................................................................................... 21

Flood Risk Identification and Mapping .................................................................................... 21

State of Illinois FEMA Partnership CTP Activities ....................................................................... 24

CTP Risk MAP Activities ......................................................................................................... 24

Coordinated Needs Management Strategy (CNMS) ............................................................... 29

IDNR/OWR and ISWS Local, State, and National Associations ............................................. 31

State of Illinois FEMA Partnership Funding Requests ................................................................ 34

Programmatic and Staffing ..................................................................................................... 34

Discovery and Outreach ......................................................................................................... 38

Priority Streams for Hydrologic and Hydraulic Studies FFY2018 ............................................ 40

Priorities for Flood Insurance Rate Maps Countywide and PMRs .......................................... 43

Action Mitigation ...................................................................................................................... 43

Conclusion .................................................................................................................................. 63

Tables Table 1. FY18 OWR Capital Fund Appropriations .................................................................... 10

Table 2. FEMA Grants .............................................................................................................. 11

Table 3. Ongoing Mitigation Projects ........................................................................................ 14

Table 4. Community Buyout Needs Identified through Discovery ............................................ 14

Table 5. Summary of Current CTP Projects ............................................................................. 26

Table 6. CMNS Summary by HUC 8 ........................................................................................ 29

Table 7. Discovery Seven-Year Plan ........................................................................................ 38

Table 8. Sangamon River Study Needs ................................................................................... 42

Table 9. Summations of Mitigation Projects Identified Through Discovery and Action Discovery .................................................................................................................................. 46

Figures Figure 1. IDNR/OWR Organization Chart .................................................................................... 2

Figure 2. CHAMP Organization Chart .......................................................................................... 9

Figure 3. Region 5 RiskMAP Status as of October, 2017 .......................................................... 25

Figure 4. DFIRM Status in Illinois .............................................................................................. 35

Figure 5. LiDAR Status in Illinois ............................................................................................... 36

Figure 6. Availability of LiDAR in Counties without DFIRMs, November 2017 .......................... 37

Figure 7. Bonpas Creek and Neighboring Counties .................................................................. 41

Figure 8. HUC8 Watershed Federal Fiscal Year ....................................................................... 45

i

Executive Summary

Illinois is mostly bordered by large rivers, and water from 24 states enters or flows along these Illinois boundaries. Illinois also has one of the largest inland systems of rivers, lakes, and streams in the entire nation, and flooding is a common occurrence in the state. While Illinois previously ranked in the top ten states for flood insurance claims, strong state and local regulations that protect property in areas with the potential for flood damage and efforts to move homes and businesses out of harm’s way have removed it from the top ten. Even so, substantial flood risk remains in Illinois as does the need to communicate and mitigate flood risk.

This 2017 Illinois Business Plan serves as the State of Illinois’ “notice of interest” to continue its participation as a Cooperating Technical Partner (CTP) with the Federal Emergency Management Agency (FEMA) and perform work under FEMA’s Flood Hazard Mitigation, National Flood Insurance, and Mapping Programs through its Department of Natural Resources, Office of Water Resources (IDNR/OWR) and the Illinois State Water Survey (ISWS), Prairie Research Institute, University of Illinois. This State of Illinois plan is intended to continue the terms of the April 28, 2004 FEMA/IDNR CTP agreement and the September 9, 2013 FEMA/ISWS CTP agreement. As statewide CTPs, the IDNR/OWR and the ISWS are prepared to continue working with FEMA to identify flood hazard risks, communicate those flood hazard risks, identify means to reduce flood hazard risks and implement those means to help FEMA meet its national goals.

Coordination of Cooperating Technical Partners

The IDNR/OWR and the ISWS work closely together to provide improved flood information for communities and property owners. The IDNR/OWR is responsible for managing the state’s river, lakes and streams. The IDNR/OWR relies upon the ISWS for their expertise in risk identification and mapping services and is committed to maintaining an aggressive floodplain management regulatory program and flood mitigation program to reduce flood risk within the state. The State of’ Illinois CTP Business Plan is a joint plan prepared by IDNR/OWR and the ISWS. It defines the existing structure and capabilities of IDNR/OWR and ISWS and outlines current programs, program goals, activities, needs, challenges, and priorities related to flood risk identification and reduction. This plan provides the status of Digital Flood Insurance Rate Maps and Risk Mapping, Assessment, and Planning (MAP) in Illinois as well as the short-term and long-term state goals in this regard. The IDNR/OWR and ISWS will coordinate activities to make the most efficient use of FEMA grant dollars in the process of elimination of flood risks and the process of providing the citizens of Illinois with accurate documentation of the residual flood risks.

1

Structure and Programs Illinois Department of Natural Resources/Offices of Water Resources The Illinois Department of Natural Resources/Office of Water Resources (IDNR/OWR) is responsible for managing the state’s river, lakes and streams. The Office of Water Resources is also the lead state agency for water resources planning, navigation, floodplain management, the National Flood Insurance Program (NFIP), water supply, including Lake Michigan water allocations to over seven million people, drought, and interstate organizations on water resources. Interagency duties include the state water plan, drought response, flood emergency situation reports, the comprehensive review of Illinois water use law and evaluation of national water policy.

The primary capital activity of the office is in the area of urban flood damage reduction with assistance to units of local government through planning, design, construction, regulations, and financial assistance. The urban program also features the acquisition of flood prone homes and businesses. IDNR/OWR personnel activities include:

• Administration of regulatory programs over construction in the floodways of rivers, lakes and streams; construction in and along Lake Michigan; construction and operation of dams; construction in public bodies of water; diversion of water from Lake Michigan; and withdrawal of water from Lake Shelbyville, Carlyle Lake, and Rend Lake.

• Operation of the William G. Stratton lock and dam on the Fox River, the Sinnissippi Dam on Rock River and other state-owned facilities. The office sponsors water resources research and operates stream gauging stations, flood gauges and lake water stage recorders in cooperation with federal, state, and local cooperators.

• Gathering of water resource data prior, during and following a flood or other disaster and disseminating data to various state and local agencies while serving as a Technical Liaison to the Illinois Emergency Management Agency (IEMA) and their Emergency Operations Center (EOC).

• As the lead managing agency for the State of Illinois Resiliency Team, coordinating various state agencies and their statewide resiliency measures intended to reduce flooding issues throughout the state.

IDNR/OWR goals include:

• Public Safety • Flood Risk Reduction • Floodplain Management • Flood Risk Identification and Mapping • Stormwater Management • Water Supply Planning • Public Water Management

2

To help streamline program management, the IDNR/OWR has realigned its organization into two divisions, the Division of Resource Management and the Division of Capital Programs.

Division of Resource Management (Manager Loren Wobig, P.E., CFM) The Division of Resource Management is comprised of six sections including: Northeastern Illinois Regulatory Section, Downstate Regulatory Section, Dam Safety Program, Statewide Programs, Lake Michigan Management Program and Levee Safety Program. Northeastern Illinois Regulatory Section (Manager Gary Jereb, P.E.) This section is responsible for enforcing higher floodplain management standards in the metropolitan Chicago counties of Cook, DuPage, Kane, Lake, McHenry and Will. Its staff of six engineers and one administrative assistant reviews permit applications for construction in floodways of rivers and streams, construction and modification of dams, and activities in public bodies of water. This section reviews on average approximately 180 permit applications annually. It conducts site visits of dams, other completed projects and proposed construction sites. It takes enforcement action on unlawful activities in cooperation with local jurisdictions and assists with the coordination of the NFIP.

This section administers a program through which local governments are delegated authority to approve projects under the State’s floodway construction rules. There are 59 communities within the six-county Chicago metro region (Part 3708 rules area) that have been delegated IDNR/OWR’s regulatory authority, including DuPage and Lake Counties. These communities are authorized to complete their own review of proposed floodway construction activities and issue permits to applicants that comply with existing state and local standards (Part 3708 rules). The Northeastern Illinois Section is currently conducting audits of these delegated communities to ensure that all terms of the IDNR’s delegation are being enforced properly prior to recertification of these communities by the Department.

Office of Water Resources Director

Division of Capital Programs

Engineering Studies

Technical Services

Design and Construction

Operations

Division of Resource Management

Northeastern Illinois Regulatory

Downstate Regulatory

Dam Safety

Statewide Programs

Lake Michigan Management

Levee Safety

Figure 1. IDNR/OWR Organization Chart

3

The team of engineers that make up this section responds to numerous phone, email and walk-in inquires daily related to floodplain management and dam safety regulatory issues in Northeastern Illinois. Additionally, these engineers conduct several community and professional outreach seminars each year to expand and improve the understanding of flood risk, sound floodplain management, and dam safety principles and regulations in the region.

Staff 5 Full-time Engineers (2 P.E.), 3 Staff Engineers (1 CFM) 1 Part-time Engineer (CFM) 1 Engineer on Non-work-related disability 1 Administrative Assistant

Downstate Regulatory Section (Manager Stephen Altman, P.E., CFM) This section is responsible for enforcing higher standards floodplain management in Illinois except for the six-county metropolitan area covered by the Northeastern Illinois Regulatory Section. Its staff reviews permit applications for construction of dams, other construction in stream floodways (Part 3700 Administrative Rules), and activities in and along public water bodies (Part 3704 Administrative Rules), as well as identification and inspection of violations of the Part 3700 and 3704 Administrative Rules. It also assists with the coordination of the NFIP as necessary. This section reviews approximately 325 floodway and dam safety permit applications annually on average.

Staff 4 Engineers (3 CFM, 1 P.E., 2 Engineer-In-Training, 1 Staff Engineer) 1 Administrative Assistant

Dam Safety Program (Manager Paul Mauer, P.E.) This program is responsible for regulating all jurisdictional dams in the state of Illinois. The State of Illinois Dam Safety Program requests program assistance in accordance with the National Dam Safety Act and the guidelines of the FEMA Funding Opportunity Announcement. Program activity summaries are provided to FEMA quarterly each year. In addition, this program is responsible for maintaining an inventory of all Class I, II, and III dams in the state; monitoring all dam safety inspections, emergency action plans (EAPs), and operation and maintenance manuals in the state; conducting dam site inspections as required by FEMA; and developing and/or reviewing EAPs for Class I and Class II dams to ensure compliance with Illinois Emergency Management Act and Dam Safety Program requirements. The Illinois Dam Safety Program recently experienced a peer review using the Association of Dam Safety Officials (ASDSO) Peer Review Program at the request of the Program. The ASDSO peer review team completed their on-site evaluation on June 6-7, 2017 and submitted a review document to the Illinois Dam Safety Program shortly thereafter. The strongest recommendation of the peer review assessment was for the Program to add significantly more staffing to the program. Accordingly, the Program is in the process of adding Professional Engineer staff to the program December 1st, plans to add another experienced staff engineer March 1st, and seeks additional staff in the coming months as state budgets and headcount allocations allow.

4

Staff 2 Engineers (P.E.) 1 Part-time Engineer (P.E.) • Interviewing to fill position for 1 Engineer (P.E.)

Statewide Programs Section (Manager Paul Osman, CFM) This section conducts floodplain management training workshops statewide (10 in 2016), community assessment visits (36 in 2016), ordinance reviews (43 in 2016), general technical assistance to local communities and citizens (1,500 in 2016), and a myriad of other legislative, FEMA Risk MAP and U.S. Army Corps of Engineers (USACE) coordination activities (90 other coordination meetings in 2016). The office also coordinates with the Community Rating System (CRS) program in Illinois. Illinois now has 61 communities in CRS with an average rating of Class 6. Nearly 50% of all flood insurance policies in Illinois are discounted due to proactive floodplain management programs.

In 2016 and 2017, major floods passed through Illinois and the Statewide Program Section worked closely with local officials to conduct hundreds of flood damage assessments. Due to strong local floodplain programs and proactive mitigation, Illinois leads the nation in overall flood loss reduction. Many communities in Illinois are now able to pass through record floods unscathed.

The IDNR/OWR also administers a non-structural Flood Hazard Mitigation Program, which purchases and removes repetitively flood damaged structures. This program is used as global match to allow communities to take advantage of matching FEMA mitigation programs.

The Statewide Programs Section of IDNR/OWR also coordinates floodplain mapping study reviews, approves stream discharges used for regulatory programs, and assists regional stormwater management programs. This section reviewed 15 studies, 32 Letters of Map Amendment, and 5 miscellaneous submittals related to the mapping program in the last year. This section also maintains a summary table on the IDNR/OWR website to track the status of current study review requests, map revision requests, and discharge certification requests.

Proceedings have been initiated at the IDNR to hire a Mapping and Cooperative Technical Partner (CTP) coordinator in this section to: • Manage floodplain and floodway mapping development, modification and prioritization

activities statewide to ensure such activities meet state flood risk mapping standards and properly convey flood risk where needed and appropriate;

• Coordinate all FEMA CTP program management and competitive grants and activities in cooperation with the ISWS;

• Assist with preparation of mapping products for the IDNR/OWR; and • Carry out projects and priorities identified in the annual IDNR/OWR Business Plan.

Staff 3 Floodplain Managers (added 2 Floodplain Managers in 2017) 1 Engineer (P.E.)

5

Lake Michigan Management Section (Section Head Jim Casey) This section is responsible for enforcing the Department’s Part 3704 Rules, which regulate construction in the Public Waters of Illinois, in Lake Michigan and a portion of the Chicago Area Water System and for regulating the allocation of water from Lake Michigan in accordance with the Department’s Part 3730 Rules. Staff in this section work closely with the Illinois Coastal Management Program and other state and federal agencies associated with Lake Michigan.

Staff 1 Section Head Engineer (P.E.) 1 Engineer (P.E.) 1 Part-time Administrative Assistant • Working to create a Water Allocation Program management position (Public Service

Administrator position) and an entry level Lake Michigan Management Program Engineer (Civil Engineer Trainee) position

Levee Safety Program (not yet permanently staffed) The IDNR/OWR and USACE are participating in a pilot program to review and analyze existing non-USACE levee systems. This program is funded and outlined in the Water Resource Development Acts allowing review and inventory of levee systems across the United States. The USACE and the IDNR/OWR will identify the location of non-USACE levees for inclusion in the National Levee Database for further review. Communities identified through this process will be invited to participate in the pilot program. Participating communities will receive a levee inspection performed by USACE and IDNR/OWR personnel, resulting in a report that identifies and quantifies the risks of the system. A levee safety action classification will be assigned that associates the identified risks with other levees throughout the nation. The goal of this program is to give communities the tools to be eligible to participate in either the Public Law 84-99 Emergency Readiness and Response Rehabilitation Program or the Section 205 Small Flood Risk Management Projects Program. The Levee Safety Program will:

• Identify non-USACE levees to include in the National Levee Database for further review • Provide assistance to communities regarding flood preparedness and flood notification • Perform inspections of non-USACE levees every five years for each community to be included

in the National Levee Database. • Maintain a database of all levees in the State of Illinois • Coordinate levee safety and mapping issues with FEMA and the USACE National Levee

Safety Program

Division of Capital Programs (Manager Rick Pohlman, P.E.)

Engineering Studies Section (Manager Rita Lee, P.E., CFM) This section is responsible for: • Hydraulic, hydrologic, economic and legal analysis of water resource projects that include

flood control, water supply, recreational and environmental enhancements • Coordination with United States Geological Survey for operations of 90 (+/-) stream gages

throughout the state

6

• Flood surveillance activities that include situation reports to IEMA and others that are developed using internet-provided data supplemented with field data from IDNR/OWR staff when appropriate

• Management of the water supply allocations from Lake Shelbyville, Carlyle Lake and Rend Lake including coordinating payments from the local water users to IDNR and providing payments to the USACE for the operation and maintenance of the reservoirs

• Daily operational guidance to IDNR/OWR staff operating Stratton Lock and Dam and Sinnissippi Dam

Staff 6 Engineers (5 P.E., 4 CFM) interviewing for an additional entry level engineer Dec. 2017 1 Publications Specialist 1 Administrative Assistant

Technical Services Section (Manager Lee Woodward, PLS) This section is responsible for: • Acquisition, analysis and mapping of topographic, property and bathymetric surveys of rivers,

lakes, streams and other areas of interest such as levees, roads and structures (dams, floodwalls, bridges and drainage culverts)

• Acquisition, analysis and documentation of stream flow and stage information using stream flow meters, digital recording gages, staff gages and crest stage gages

• Acquisition and preparation of LiDAR data for use by others in OWR and IDNR • Development of GIS products and GIS support

Staff 1 Land Surveyor (PLS) 1 GIS Analyst 4 Engineering Technicians (field) 1 Engineering Technician (office)

Design and Construction Section (Manager Ted Montrey P.E., S.E.) This section is responsible for: • Development of plans and specifications for IDNR/OWR construction projects • Managing construction of IDNR/OWR and IDNR/OWR-funded projects • Technical support on various statewide committees (Illinois Urban Manual Technical Review

Committee, Illinois Urban Manual Steering Committee and the Illinois Department of Transportation’s Low Water Crossing Research Panel)

• Technical support for IDNR’s Office of Realty and Environmental Planning projects (park bridges, retaining walls and trails)

Staff 2 Design Engineers (2 P.E., 1 S.E.) 1 Construction Manager (1 P.E.) 1 Resident Engineer (non-licensed) 2 Engineering Technicians (office) Michael Baker, Jr. (consultants) V3 companies of Illinois (consultants)

7

Operations Section (Manager Amy McNeal P.E.) This section is responsible for: • Installing, maintaining and removing buoys and warning signs at 22 dams on the Fox, Rock,

Kankakee and Vermillion Rivers and Salt Creek • Installing, maintaining and removing navigational buoys on the Fox River from Johnsburg to

Algonquin • Inspection and maintenance of all IDNR/OWR owned facilities • Construction of small scale IDNR/OWR projects such as dam removals • Collecting weather information for the National Weather Service at Stratton Dam • Operating the Sinnissippi Dam on the Rock River and the Stratton Dam on the Fox River to

maintain water levels and minimize flooding • Operating the lock at Stratton Dam for boaters. The lock is open seven days a week from

May 1 to October 31. • Inspection of Flood Relief (FR) projects constructed by IDNR/OWR to ensure local agencies

are operating and maintaining them appropriately • Coordinating with the Fox Waterway Agency for dredging-related projects to maintain

navigational depths in the Chain O’ Lakes

Staff 1 Engineer (P.E.) 1 Field Maintenance Supervisor 1 State Facilities Maintainer 1 Dam Supervisor 1 Lock Master 1 Assistant Lock Master 3 Lock and Dam Tenders

Illinois State Water Survey Prairie Research Institute The Illinois State Water Survey (ISWS), the Illinois Natural History Survey, the Illinois State Geological Survey, the Illinois Sustainable Technology Center, and the Illinois State Archeology Survey are collectively referred to as the Illinois State Scientific Surveys. As of July 1, 2008, the ISWS joined the other state surveys to form the Prairie Research Institute (formerly the Institute of Natural Resource Sustainability) within the University of Illinois. The institute will serve as a focal point for applied energy, environmental science, and sustainability programs, taking advantage of the surveys’ complementary goals and missions of providing the scientific underpinnings for energy, sustainability, environmental policy, and natural resource management, ensuring that the natural environment is developed to enhance the well-being of citizens and communities.

Illinois State Water Survey The ISWS is the primary agency for research and information on surface water, groundwater, and the atmosphere. The ISWS is a premier organization with more than 110 years of experience in all aspects of water resources. Located on the University of Illinois campus, the ISWS conducts research and monitors and provides information on the availability, use, and quality of surface

8

water, groundwater, and atmospheric resources, including state and regional data on weather, climate, air quality, water supplies, and flood hazard identification. ISWS staff apply state-of-the-art science to solve real-world problems. Most staff are funded by grants and contracts through the University of Illinois.

The ISWS is home to the State Climatologist Office, the State Hydrologist, and the Midwestern Regional Climate Center, where precipitation, tornado, hail, and wind data are tracked and recorded. The Midwestern Regional Climate Center (MRCC) is a cooperative program of the ISWS and the National Climatic Data Center (National Oceanic and Atmospheric Administration, U.S. Department of Commerce). The MRCC is a partner in a national climate service program that includes the National Climatic Data Center, Regional Climate Centers, and State Climate Offices. Coordinated Hazard Assessment and Mapping Program Section Vision Statement Through science and collaboration, the Coordinated Hazard Assessment and Mapping Program (CHAMP) Section is dedicated to preventing losses from flooding and other natural hazards.

Mission Statement CHAMP produces relevant information, creates innovative products, and engages partners in order to inform, educate, and empower others to take action to prevent losses from natural hazards. The CHAMP Section focuses on natural hazard identification and mitigation. In concert with the ISWS mission, CHAMP conducts research and provides information on surface water resources and hazards. The CHAMP organization chart is shown in Figure 2. CHAMP staff are primarily funded through grants and contracts secured through proposal writing and responding to various requests for services from communities and agencies for project work related to our mission and expertise. The ISWS provides 0.5 FTE to support FEMA flood studies and projects. Recognizing that flood hazards are the most predictable natural hazard, the ISWS has long been engaged in programs and activities to identify flood hazards and provide technical support to individuals and communities. ISWS staff actively participate in the Illinois Association for Floodplain and Stormwater Management (IAFSM), the Association of State Floodplain Managers (ASFPM), the Illinois Geographic Information System Association (ILGISA), Illinois State Hazard Mitigation Plan committee, and the Illinois Silver Jackets. The ISWS, and in particular CHAMP, will continue to seek out and identify agencies and professional organizations for coordination and information exchange that will help promote our long-term vision.

Non-federal funding is provided by the ISWS for a minimum of 0.5 FTE to directly support FEMA projects.

9

Figure 2. CHAMP Organization Chart

Engineering Senior Hydraulic Engineer

Glenn Heistand Project Engineers

Amanda Flegel Aaron Thomas Greg Byard

Staff Engineer Engineer- new

H&H Engineer Jennifer Byard Engineer - new

Assistant Engineer Mary Richardson

Program Manager – Sally McConkey

GIS GIS Manager – Kingsley Allan GIS Team Lead

Lisa Graff GIS Specialists Marni Law (CNMS) Brad McVay (HAZUS) Zoe Zaloudek (Special Projects) Clayton Ballerine Greta Buckley Sam Chakravorty

GIS Senior Hydrographer Ryan Meekma GIS Hydrographer

Clayton Ballerine GIS Specialists

Curt Abert Matt Jefferson Zoe Zaloudek Greta Buckley

Mapping Project Engineer Diana Davisson

Michelle Fuller (post processing) QC/QR/LOMC Sam Chakravorty Sarah Milton

Web Page Kingsley Allan (Lead) Sarah Milton Zoe Zaloudek

Quality Checks & Quality Review GIS Specialist Sarah Milton; Engineer Diana Davisson

Coordinated Hazard Assessment and Mapping Program Organization Chart 2018

Notes: Black = primary assignment Blue = secondary

i t

Outreach & Discovery Mary Richardson– Lead Michelle Fuller Lisa Graff Brad McVay Sally McConkey Glenn Heistand

MT-2 Review & Processing Chris Hanstad - Lead Brian Chaille Aaron Thomas

Mapping & Support Greta Buckley Sam Chakravorty Sarah Milton (graphics) Michelle Fuller (post processing) Engineers & GIS as needed

Technical Writer Jeanne Handy

Special Projects Atmospheric Science Nicole Gaynor

10

Capabilities and Resources IDNR/OWR Capabilities and Resources

Staff While the OWR is aggressively posting and hiring for vacant positions, staff levels for FY-2018 remain critically low due to attrition and retirements. The approved State of Illinois operations budget continues to limit the hiring of required new staff and necessary internal promotions. The OWR is working to staff additional levee safety, engineering studies, engineering design, floodplain management, dam safety, mapping coordination and mapping study review positions as rapidly as the state hiring process allows. Due to attrition and unfilled vacancies, existing onboard staffing levels are 32% lower (50 of 72 required) than staffing levels necessary to maintain the existing work load, and do not consider any necessary program expansions. Staff work assignments are often adjusted to service critical objectives of the Office.

IDNR/OWR intends to seek additional staff including: • Senior Public Service Administrator – Section Chief, Statewide Programs • CTP and Mapping Coordinator • Geographic Information Specialist Trainee • Natural Resource Manager 2 • Civil Engineer Trainees – Downstate Regulatory and Northeastern Illinois Regulatory

Program Sections • Power Shovel Operator • Civil Engineer 3 – Northeastern Illinois Regulatory Program Section • Civil Engineer Trainee – Dam Safety Program • Civil Engineer Trainee – Lake Michigan Program

Capital Appropriations Although authorized by the fiscal year 2018 budget, capital appropriations for the IDNR/OWR, shown in Table 1, remain suspended pending release of funding.

Table 1. FY18 OWR Capital Fund Appropriations

Project Category Cost of Projects Flood Control $9,703,232 Flood Hazard Mitigation (Buy-Out) $17,161,536 Dam Removal $25,602,298 Facility Maintenance $7,034,360 Total $59,501,426

The governor judiciously controls the release of these funds for expenditures. Accordingly, limited funding is provided to the IDNR/OWR as state finances and approved bond sales allow based on prioritized funding requests from the IDNR/OWR. Existing and anticipated IDNR/OWR capital projects include the following:

11

Dam Removal: • Fox River - Stratton Lock and Dam life

extension construction re-initiation • Statewide construction management • Vermilion River - Danville Dam and

Ellsworth Park Dam removals • Lake County dam removals • Hadley Valley Spring Creek restoration • Design services for dam removals • Chick Evans Dam removal and new

pedestrian bridge • Carpentersville/Fabyan causeway • Hickory Creek utility relocation • Cache River East Swamp structure • Vermilion River - Oglesby Dam removal • Dam 4 removal by OWR

• Touhy Dam removal by OWR • Tam O'Shanter Dam removal and

pump station modification • Fox River - Yorkville by-pass

channel reconstruction • River Park Dam: North Branch

Chicago River • North Aurora dam removal design • Kankakee River - Wilmington • McDonald Creek • Pilcher Park Dam removal • Des Plaines River - Groveland

Avenue Levee • North Aurora dam removal • Sangamon River dam removals

Flood Control: • Hinsdale Graue Mill • Des Plaines River - Phase 2

Flood Hazard Mitigation: $6,159,715 has been released so far in FY18 for flood hazard mitigation to cover ongoing flood hazard mitigation projects in the following communities. Several other communities have requested participation in the program and the IDNR/OWR will be entering discussion with those communities to potentially initiate other new flood hazard mitigation projects. • Alexander County buyouts • Pearl City buyouts • McHenry County buyouts • Des Plaines buyouts • DuPage County buyouts

• South Elgin buyouts • Freeport buyouts • Roanoke buyouts • Gallatin County

FEMA Grants FEMA grants have been awarded to the IDNR/OWR for the Dam Safety Program, the NFIP, and the CTP Program. These grants support staff assigned to these missions. Staff must provide reports as indicated in Table 2.

Table 2. FEMA Grants

FEMA Grant Grant Period Grant Award Reporting Dam Safety 2017 07/31/17 – 07/30/18 $151,823 Quarterly NFIP Community Assessment Program (CAP) 2017 10/01/17 – 09/30/18 $420,000 Quarterly

CTP Project Management 2017 10/01/17 – 09/30/18 $100,000 Quarterly

12

LiDAR Acquisition LaSalle County LiDAR Acquisition: OWR is a funding partner along with the Natural Resources Conservation Service (NRCS), the U.S. Geological Survey (USGS) and the Illinois State Geological Survey (ISGS) for LaSalle County LiDAR acquisition, with delivery by June 30, 2018. West Central Illinois LiDAR Acquisition: USGS and NRCS are funding and have allowed OWR to participate in the acquisition planning for the remaining Illinois counties that do not have LiDAR, which are Brown, Schuyler, Mason, Menard, Sangamon, and Morgan Counties. This USGS and NRCS acquisition will take place Fall 2017. Additional LiDAR Acquisition: Spring 2017 acquisition for Hancock, Cass, Greene, Macoupin, and Montgomery Counties will be available early 2018. Excess Hurricane Ike funding will be used for additional LiDAR acquisition, with prioritization of Boone, Winnebago, and Adams Counties.

ISWS/CHAMP Capabilities and Resources The ISWS/CHAMP staff perform engineering and mapping tasks to prepare the Digital Flood Insurance Rate Maps (DFIRMs) and technical data for Flood Insurance Studies (FIS). CHAMP staff conduct hydrologic and hydraulic studies to identify flood hazards, help manage stormwater, and assist communities. CHAMP staff is comprised of twelve GIS Professionals, nine engineers, and three outreach and data management staff. Seven engineers are Registered Professional Engineers in Illinois. Twenty-two program staff are Certified Floodplain Managers. Three GIS professionals are certified HAZUS-MH trained. Seven GIS staff have earned their Geographic Information Systems Professional (GISP) certification. ISWS/CHAMP expects to hire two to three additional engineers by January 2018.

ISWS/CHAMP has successfully completed FEMA MAS/SOW tasks funded in FFY2008, FFY2009, FFY2010, FFY2011, FFY2012 and FFY2014. The University of Illinois provides account management support, and all periodic audits have passed without any findings. Current work funded under FFY2013, FFY2015, FFY2016 and FFY2017 are listed in Table 5 of the CTP Risk MAP Activities section.

13

Program Activities IDNR/OWR Program Activities Regulatory Programs Regulations Updates As staff resources allow, both the Northeastern Illinois and Downstate Regulatory sections are working to update the current Part 3700 Administrative Rules to change the “worst case analysis” for floodwalls and levees to provide consistent regulations statewide by limiting regulatory authority to the 100-year frequency flood event profile and to comply with directives included in HJR0095 and Executive Order 2016-013. The updated Administrative Rules will include a number of General Permits and an expanded listing of exemptions to expedite regulatory approvals.

The Regulatory Programs continue to take actions against an ever-growing number of violations across the state up to and including legal actions by the State Attorney General.

The Regulatory Programs are also developing a means to identify statewide mapping needs based on the magnitude, frequency and extent of permitted floodway activities.

The Downstate Regulatory Section will update the Technical Guidelines to assist applicants seeking IDNR/OWR authorization for proposed floodway activities under the Part 3700 Administrative Rules and help streamline the application review process timeline. Statewide Programs Assessment of Conveyance Only Floodway Mapping Community Compliance Part 3708 Administrative Rules provide for Conveyance Only (90% floodplain storage not preserved in the designated floodway) Floodway delineation mapping in any community agreeing to regulate and preserve all floodplain storage within the specially designated mapping reach. The Statewide Programs Section is conducting a floodplain storage audit of these specially mapped communities in the six-county Chicago Metro area to assess compliance with the storage preservation requirements established in accordance with the terms of the existing IDNR agreement with these communities. Failure to comply with the terms of the Conveyance Only Floodway Agreement results in the limited floodway maps being rescinded and replaced with either previous storage floodway mapping or considering the entire floodplain floodway for regulatory purposes. The Section is also updating the Map Revision and New Studies guidelines manual, which is scheduled for completion in April 2018.

Flood Hazard Mitigation • The IDNR/OWR Flood Hazard Mitigation program is focused on assisting Illinois communities

implement flood damage reduction projects and creating open space. IDNR can purchase real property – mobile homes are excluded.

• The program operates independent of, or provides cost share assistance with, other state or federal mitigation programs.

• Projects are selected based on the overall benefit to the State of Illinois. • The program operates as an IDNR/OWR reimbursement program, not a grant program. The

community must pay all expenses and request reimbursement from IDNR/OWR for the expenses related directly to the project.

14

Table 3. Ongoing Mitigation Projects

Project Location IDNR/OWR Funding Alexander County $5,000,000 DuPage County $277,500 McHenry County $1,100,000 City of Des Plaines $1,925,000 Village of Pearl City $2,145,000 Gallatin County $297,000 City of Freeport $85,000 Village of Roanoke $250,000 Village of South Elgin $34,000 Total $11,113,500

The Alexander County project is nearly completed, including the removal of 113 flood-prone structures from the floodplain. Additional projects may also be considered based on mitigation acquisition projects identified in existing countywide Hazard Mitigation Plans. Table 4 identifies additional buyout needs that have been identified though Discovery efforts.

Table 4. Community Buyout Needs Identified through Discovery

Watershed County Community Approximate Number Des Plaines Cook Maine Township 60 Des Plaines Cook Wheeling Township * Des Plaines Cook Franklin Park, Village of 33 Des Plaines Cook Mount Prospect, Village of *

Des Plaines Cook Maywood, Village of \ Melrose Park, Village of 60

Des Plaines DuPage Addison, Village of 14, 3 (2 areas) Des Plaines DuPage Carol Stream, Village of 4 Des Plaines DuPage Wood Dale, City of 9 Des Plaines Will Joliet, City of *

Chicago Cook Glenview, Village of * Rock Winnebago Machesney Park, Village of 31+ (in progress)

Lower Fox LaSalle Ottawa, City of 4 (numerous completed) Lower Fox Kane Kane County 3 (completed) Lower Fox Kane South Elgin, Village of 2 Upper Fox Lake Lake County, Pistakee Lake * Upper Fox Lake Lake County, Slocum Lake * Upper Fox Lake/McHenry Fox Lake, Village of * Upper Fox Lake/McHenry Port Barrington, Village of 3 Upper Fox McHenry Cary, Village of 4 Upper Fox McHenry Crystal Lake, City of 3 Upper Fox McHenry Lakemoor, Village of 1

Upper Sangamon Macon Decatur, City of 6 Upper Sangamon Macon Macon County 5 Upper Sangamon Piatt Monticello, City of * Upper Sangamon Sangamon Sangamon County *

Saline Saline Harrisburg, City of 5 Middle Wabash Busseron Crawford Hutsonville, City of 2

*Specific need to be determined

15

Lake Michigan Management Program activities include: • Collecting annual water use data from 216 Lake Michigan Water Allocation permittees • Collecting monthly water use data from 19 Lake Michigan Water Allocation Direct Diverters • Tracking permittees compliance with the Department’s water conservation requirements • Preparing annual water use reports for the Great Lakes Commission’s Water Use Database • Reviewing petitions for new or revisions to existing Lake Michigan water allocations

o The Village of Bartlett application for Lake Michigan water allocation is currently under review

• Reviewing all applications-for-permit for construction projects on Lake Michigan and a portion of the Chicago Area Water System

• Aiding the Illinois Coastal Management Program in the review of Federal Consistency Determinations

• Assisting the Illinois Coastal Management Program in developing a sand management strategy for Lake Michigan

• Planning for a “Future of Water Use” conference in conjunction with related professional associations

• Planning for a ten-year review of Lake Michigan water allocations that could lead to redistribution of allocations based on the actual water use and changed conditions

Dam Safety Program activities include: • Maintaining an inventory of all Class I (high hazard), Class II (medium hazard) and Class III

(low hazard) dams in the state • Monitoring all dam safety inspections, emergency action plans (EAPs) and operation and

maintenance manuals in the state • Conducting dam site inspections as required by FEMA. Inspections of 338 sites were

conducted last year, including 96 Class I dams and 242 Class II and Class III dams. • Developing and/or reviewing EAPs for Class I and Class II dams to ensure compliance with

Illinois Emergency Management Act and Dam Safety Program requirements. In the past year, 17 EAPs were reviewed and 7 owner EAP orientation meetings were attended by the section.

Levee Safety Program activities: In lieu of a permanent staff in the Levee Safety section, the IDNR/OWR has created an interim Levee Safety Program team comprised of staff from both OWR divisions to investigate and “test drive” a State of Illinois pilot Levee Safety Program with guidance from the Rock Island District USACE. IDNR/OWR activities conducted as part of the interim program include: • Identifying five urban levee systems for inclusion in the pilot program: Streator, North Pekin,

Elmhurst, Chandlerville, and London Mills • Surveying identified levee systems with transfer of data from IDNR to the USACE for

assessment • Completing site visits along with the USACE to all identified levees in December and January • Attending National Levee Database training conducted by the Rock Island District USACE • Conducting meetings along with the USACE to explain the program to the identified

communities, all five of which accepted the invitation for inclusion in the pilot program

16

Engineering Studies Program activities include: • Coordination of Cache River Levee Repairs with responsible drainage districts • Coordination of dam removal projects with local governments and regulatory agencies • Flood control feasibility and flood risk identification study in Diedrich • Strategic Planning Study for Embarras River State Recreation Area • Flood Surveillance and coordination with IEMA • Hickory Creek flood control project planning study • City of Fairfield flood risk reduction feasibility study • Edgar Lake pump station rehabilitation • Wabash River hydraulic modeling and remapping • City of Jacksonville streambank stabilization study of Town Branch • Dolton City hydrologic and hydraulic modeling for remap of tributary to Marrowbone Creek • Upper Fox River flood risk damage assessment (similar to Rockford/Rock River assessment

underway with CTP funding) • Village of Kingston flood risk reduction feasibility study of a tributary to the Kishwaukee River • DuPage River feasibility study with USACE, DuPage County and Lake County • Real-time flood inundation mapping programs for the Des Plaines, Rock, Illinois and

Mississippi Rivers • Inundation mapping library for unprotected (non-leveed) communities on the Mississippi River • Water Supply Planning - Contracting with ISWS to continue modeling of the Middle Illinois

River and the Kankakee River regions for water supply planning Technical Services Program activities include: • Bathymetric surveys of water supply lakes and State-managed recreational impoundments • Wetlands and ordinary high water marks for dam removal projects • Data collection for State-owned dams in need of repairs (Sinnissippi and Crissenberry) • Survey of first floor elevations of structures located in floodplains in Rock Island County • Survey of first floor elevations of structures located along the lower DuPage River • Surveys of channel cross sections and floodplain sections in the Little Wabash River

watershed • As-built and construction staking surveys for Fox River Stratton Lock and Dam Expansion

Project • As-built and construction staking surveys for Len Small levee breech in Alexander County • Development of Rock River Real-Time Flood Inundation mapping • LiDAR data management • GIS project support and data management Design and Construction Program activities include: • Development of plans and specifications for the Cache River levee repair • Development of plans and specifications for Touhy Avenue dam removal, Chick Evans Golf

Course dam removal and new pedestrian bridge, Danville and Buzzi-Unicem dam removals • Development of plans and specifications for the Cache River East Swamp Structure

17

• Development of plans and specifications for the restoration of Spring Creek for the Hadley Valley Preserve of Will County Forest Preserve District

• Development of plans and specifications for the Pilcher Park Dam Removal • Development of plans and specifications for Hickory and Spring Creeks Channel

Improvements Phase IIIC • Management of Stratton Lock and Dam Life Extension construction project (currently

suspended pending release of capital funds) • Management of Yorkville Walkway Improvements (currently suspended pending release of

capital funds) • Development of plans and specifications for the removal of Dam 4 on the Des Plaines river in

Park Ridge, Illinois • Review of plans and specifications for the Fabyan Causeway Removal Project • Development of plans and specifications for the Rock Cut State Park Trail and Bridge project • Development of plans and specifications for the Golf Road Interceptor project • Development of plans and specifications for the Yorkville By-Pass Channel Reconstruction

Construction Pending Funding o Albany Park 5,833 feet long/18 feet diameter stormwater diversion tunnel lining and all

appurtenances to be completed summer of 2018 o Removal of the Danville Dam o Tam O’Shanter pump station modification o Repair of the 6,000-foot-long Len Small Levee breach

Operations Program activities include: • Executing Ellsworth Park Dam removal, Danville – currently suspended until funding receives

governor’s office approval • Coordinating development of plans and specifications for Sinnissippi Dam Control System

modifications and life extension work for inflatable bags. A request for professional services is complete. Once funding is released, it can be advertised.

• Coordinating development of plans and specifications for Edgar Lakes Pump Station Rehabilitation. A request for professional services is complete. Once funding is released, it can be advertised.

• Fox Waterway Agency Dredging Support Activities led by the Fox Waterway Agency is in the process of getting approval of permits by the USACE for the Trinski Island project

• Installation of buoys and warning signs throughout the state include approximately 300 buoys and five floating signs placed, maintained and retrieved by the IDNR/OWR, and 25 abutment signs installed and maintained by IDNR/OWR

• Maintenance of IDNR/OWR owned facilities at Crissenberry and Midlothian. All regular maintenance is ongoing. Facilities Maintenance is on hold at Crissenberry and Montgomery dams until funding is restored.

• Inspection and report preparation of previous construction projects: All dam safety inspections are done every one, three or five years dependent on the hazard classification of each dam. All flood relief projects are inspected every five years, dependent on staffing levels.

18

ISWS/CHAMP Activities Related to Flooding and Flood Risk ISWS Flood Information Services and Web Resources The ISWS has 120 years of experience serving the citizens of Illinois. Before FEMA’s Map Modernization Program, the ISWS served as the state repository for the paper maps and available engineering models. The ISWS is still recognized as a superior source of information regarding flood data. ISWS/CHAMP has continued this tradition of public outreach and engagement though website development and participating in and/or hosting multiple meetings in nearly every Illinois county for Scoping, Open Houses, Discovery, and Flood Risk Review. The overwhelming response and attendance at meetings hosted by ISWS are a testament to the outreach capability of the ISWS. The ISWS maintains the Illinois Floodplain Maps website, home to Risk MAP Watershed based outreach and products, for Illinois (http://www.illinois floodmaps.org/). The site has four main pages: • The DFIRMs page tracks the status of

the DFIRM mapping in Illinois. • Risk MAP OUTREACH products

include Discovery Maps, associated databases, outreach materials, and useful websites.

• The site is also home to SERVICES, including the web page, Destined for DFIRMS, showing the locations of in-progress hydrologic and hydraulic flood studies. A link is provided to the ISWS study conducted under a FEMA Best Practices Award where Unmapped Special Flood Hazard Areas in Illinois have been identified, mapped, and tabulated for each Illinois County.

• LOMR (MT-2) applications (excluding levee accreditation packages) are reviewed by CHAMP staff through the FEMA LOMR Delegation Program. The website includes information about this program.

Current ISWS Projects Related to Flooding and Flood Risk Technology Solutions for Community and Regional Flood Disaster Planning and Mitigation ISWS is coordinating work with the Illinois State Geological Survey to provide a number of products to support hazard identification and risk assessment. A three-part project has been funded by the Illinois Department of Community and Economic Development. Structure Flood Risk Assessment Studies: This project work includes survey of lowest entry point and first floor elevations for individual structures located in the floodplains found in Peoria County, the City of Ottawa in LaSalle County and parts of Rock Island County. Individual structure flood risk assessments for the project areas of Peoria County and the City of Ottawa will be

Illinois State Water Survey Website Pages

Illinois State Water Survey

www.isws.illinois.edu

Illinois Flood Maps Website www.illinoisfloodmaps.org

Illinois State Climatologist Office Website

http://www.isws.illinois.edu/atmos/statecli/indexhtm

Midwestern Regional Climate Center Website http://mrcc.isws.illinois.edu/

19

prepared. The work includes development of base level hydraulic models, generation of flood depth grids and HAZUS analyses for risk assessment throughout Peoria County and the City of Ottawa. Data collected in Rock Island County will advance the statewide database of floodplain structure information. LiDAR Data Acquisition and Processing for Cass, Greene, Hancock, Macoupin, and Montgomery Counties: LiDAR data will be acquired and processed for Cass, Greene, Hancock, Macoupin, and Montgomery Counties. All deliverables will meet U.S. Geological Survey National Geospatial Program LiDAR Base Specification, v 1.2, November 2014; supplemental FEMA requirements for enhanced point cloud classifications of buildings and vegetation will be adhered to and reflected in final product deliverables. The data will meet USGS 3D Elevation Program (3DEP) Quality Level 2 (QL2) parameters, with data collected at a nominal point spacing of .7 meters, or a point density of two points per square meter; the coordinate reference system will be Illinois State Plane West and referenced to NAVD1988. The LiDAR data will be processed to produce a classified point cloud, tile-based bare earth Digital Elevation Models (DEMs), and related metadata and supplemental reports. All resulting data products for the five counties will be placed in the public domain and made freely available for viewing and download via the Illinois Natural Resources Geospatial Data Clearinghouse; data will also be shared with the USGS, for on-line access through the USGS National Map and EarthExplorer. Rainfall Frequency Atlas for Illinois: The ISWS will prepare an update to the design storm rainfall analysis in Bulletin 70 (Huff and Angel, 1989) for Illinois. The focus of the project will be the analyses of extreme precipitation events and preparation of design storm tables commonly used for infrastructure design, flood studies, and regulation. Rain gages throughout Illinois and bordering states will be used to prepare extreme rainfall event data. Tables will be prepared for the ten regions defined in Bulletin 70 showing rain depths for the 2-, 5-, 10-, 25-, 50-, 100- and 500-year recurrence intervals for 24-, 48- and 72-hour rainfall durations. Metropolitan Water Reclamation District of Greater Chicago, Watershed Specific Release Rate Study ISWS/CHAMP is conducting analyses of watersheds in Cook County to evaluate appropriate watershed specific release rates from stormwater detention facilities under the Watershed Management Ordinance. Community Resilience and Disaster Costs Two case studies will be developed that examine the impact of repeated natural disasters on community resilience. These case studies will include assessment of community resilience at points in time and examine expenditures of disaster funds.

20

State of Illinois Goals The goals of the IDNR/OWR, with the support of ISWS/CHAMP, are to continue the pursuit of sound floodplain management, provide for secure water sources for public and industrial uses and further flood risk reduction in Illinois. Public Safety • Implement removal of public low head dams in the Chicago River, Des Plaines, Vermilion

(Illinois), Vermilion (Wabash), Fox, Kankakee, Hickory Creek, and Sangamon River Watersheds to improve public safety;

• Continue to conduct flood surveillance activities as flooding and flood damages occur statewide to update forecast gage stage damage information (identify what is damaged at what stage);

• Continue State Dam Safety Program review, inspections and compliance determinations;

• Create a State Levee Safety Program in the IDNR/OWR in accordance with the USACE Water Resources Reform and Development Act (WRRDA) Guidance that will be responsible for maintaining a database of all levees in the state of Illinois and coordinating levee safety and mapping issues with FEMA and the USACE. Additional staff and associated funding is required to initiate this program;

• Mapping levees statewide using LiDAR-based survey to determine overtopping elevations, levee breach inundation mapping and economic impacts of such levee failures.

Flood Risk Reduction • Continue to implement additional Flood Hazard Mitigation (acquisition) Projects statewide to

eliminate repetitive loss structures as available funding allows. Illinois also intends to continue to partner with FEMA and IEMA to help optimize repetitive loss acquisitions through the Hazard Mitigation Grant Program (HMGP) by working with local communities to provide for the required 25% local match either individually or globally;

• Based on Discovery information, the State of Illinois will continue to partner with local Illinois communities like Kingston, Illinois (Kiswaukee Watershed) to study the feasibility of potential flood hazard risk reduction projects and, if appropriate, complete project planning and project designs to implement such economically feasible measures. This DeKalb County community has sustained flood damages during several storm events in the past ten years. The IDNR is conducting a flood study of the tributaries through Kingston to identify the source of the flood problem and to develop a flood mitigation strategy for the future. The study is expected to be completed in late summer 2018, and improved floodplain inundation mapping will be one of the products from this study for future use by FEMA.

Water Supply Planning • Continue to coordinate the non-Federal withdrawal of water from three federally owned water

supply reservoirs: Lake Shelbyville, Carlyle Lake, and Rend Lake.

21

• Coordinate the development of new regional water supply planning groups throughout the state and continuing the efforts of the existing regional groups. Requests for water withdrawal from the Kankakee and Fox River have been submitted to the IDNR/OWR for consideration.

• Continue to seek local water conservation district payment to the USACE for public water supply in accordance with existing intergovernmental agreements in lieu of the IDNR/OWR being required to pay the USACE for all required costs.

• Provide guidance documentation on various water supply topics such as water conservation and template drought contingency plans for water users throughout the state.

Floodplain Management • Continue to regulate Public Water and floodway activities statewide for compliance with the

Rivers, Lakes and Streams Act and Administrative Rules Part 3700, 3702, 3704, and 3708. • Continue to work with communities to demonstrate NFIP compliance, participate in the

National CRS program and minimize flood hazard risks through FEMA’s Community Assistance Program.

• Evaluate current Statewide, Regional and General Permits to assure that any policies created by statewide, general or regional permits are included in the administrative rules.

• Continue to actively participate in the IAFSM Special Unsteady Modeling Subcommittee as a means to developing better insight and policy related to use of unsteady modeling for regulatory purposes.

• Continue to update or eliminate all OWR Administrative Rules • Seek to strengthen enforcement authorities in the Rivers, Lakes and Streams Act, especially

for high hazard public safety floodplain and dam safety violations

Flood Risk Identification and Mapping Illinois recognizes that it needs to continue to develop better flood hazard maps for all urban and urbanizing areas of the State to improve NFIP activities and the State’s regulatory floodplain management programs. Coordinated Needs Management Strategy (CNMS) has helped to identify technical deficiencies in existing floodplain and floodway mapping. This information can direct resources to the areas where improved technical products can provide the greatest public benefit. Goals include:

• Working with a consultant to continue development of a statewide flood hazard risk assessment database including every structure located within a designated floodplain in the State of Illinois based on known structure types, structure appraised values, and surveyed first floor/low entry information to create a statewide GIS database of such assessments to prioritize federal, state and local mitigation assistance, estimate event related flood damages, update community hazard plans, and evaluate potential structural flood damage reduction resilient projects as funding allows.

• Working with a consultant to utilize existing first floor and low entry surveyed elevations in the Fox River Watershed, especially in high risk areas along the Fox River itself and in major

22

tributaries like Nippersink Creek to complete structure flood damage assessments to add to the master statewide flood hazard risk assessment database.

• Working with a consultant to utilize existing structural flood damage assessment information already computed (using previously surveyed first floor and low entry surveyed elevations) for strategic flood damage reduction studies to add to a master statewide flood hazard risk assessment database including such watersheds as the North Branch Chicago River Watershed and individual communities such as Grafton, Champaign, Kirkland, Ashland, communities along the Mississippi River and many more.

• Wabash River: Completing new hydraulic modeling of the Wabash River to develop improved flood profiles and floodplain mapping. Numerous floods have occurred along the Wabash River over the past ten years. The existing maps are based on a physical model of the Wabash River, and experience has demonstrated that the Wabash River moves and changes regularly, making the existing maps of limited value. In coordination with the State of Indiana, new modeling will serve as a basis for new mapping in the watershed and will be used for regulatory purposes to evaluate proposed floodway activities.

• Rock River: FEMA has placed the proposed floodway/floodplain mapping of the Lower Rock River “on hold” until FEMA Region V determines the best way to continue the mapping approval process absent state written concurrence with the mapping and associated computer modeling that is the usual protocol. IDNR/OWR has reviewed, commented, and vetted the technical aspects of the mapping and study proposal as required and considers the modified version of the proposed study and computer modelling to be technically sound. For regulatory program purposes, IDNR/OWR will continue to abide by the errant existing regulatory floodway mapping (until it is superseded by FEMA with new mapping) for jurisdictional determinations (is a proposed activity within the floodway, or in the floodplain fringe) concerning the need for an IDNR/OWR permit for work in the floodway. However, IDNR/OWR will utilize/require the new modeling be used as “best available information” to determine floodway activity flooding impacts to others when assessing compliance with the IDNR Administrative Rules Part 3700 as required by the Rivers, Lakes, and Streams Act when an IDNR/OWR permit is required for floodway activities. On tributary streams to the Lower Rock River, such as Zuma Creek, where no tributary floodway has been delineated, IDNR/OWR will continue to regulate all activities in the entire tributary floodplain as floodway in accordance with our Administrative Rules until such time as floodway modeling for the tributary stream has been defined and approved by IDNR/OWR.

• Mississippi River: Continuing to assist the USACE in preparing hydraulic modeling of the Mississippi River, which would become the basis for all future work along the river. The adoption of this model by multiple Mississippi River states would minimize the differences in regulatory efforts between states and would ensure that levee districts, highway departments, and others have a sound and consistent model for their application. Although preliminary results of a Mississippi River Levees impact analysis completed using this model have been provided to the states of Illinois, Missouri and Iowa for consideration, the USACE has been directed by Corps headquarters to refrain from public dissemination of the analysis for now. The State of Illinois has created a library of Mississippi River flood inundation maps at different

23

stages for the Illinois communities not protected by levees along the Mississippi River. The interpolated flood maps were created so that one-foot increment stage readings at the nearest river gage could be properly mapped at an at-risk community using LiDAR-based topography and the hydraulic river profiles developed by the USACE Flow Frequency Study. It is the intent of the State of Illinois to develop a database (and/or PDF booklet) of structural flood damage assessments for each of these communities to be used by the communities to inform individual property owners of their flood risk, to prioritize flood hazard mitigation activities, and to better predict and prepare for impending flood conditions, resulting in more resilient communities. Long-term floodplain/levee management on the Mississippi River requires this better understanding of existing flood risks along the river in Illinois.

• Fox River: Developing accurate floodplain and floodway mapping to assist in the structural risk assessment and identification of high priority mitigation buyouts along the river for flood hazard reduction and lock and dam gate operations by IDNR/OWR. Hydrologic and hydraulic data development in the Lower Fox watershed is a priority.

• Cache River: Repairing the breached levee and mapping the Upper Cache River and Lower Cache River to accurately reflect flood risk. The Karnak Levee breached in 2002 leaving the Lower Cache River unprotected from high water on the Ohio River and the Upper Cache River. Flooding of the Lower Cache River occurred in 2008 and 2011. UNET modeling is also being developed on the Lower Cache River to analyze impacts of a potential “east swamp structure” west of the Karnak-Bellnap Road to force low flows in the Cache River to flow westward through the swamp. Inundation mapping in the upper portion of the Lower Cache River watershed is used to manage ecological and agriculture resources in the watershed and resolve inundation area conflicts between those two interests.

• Continuing to develop the ability to create real-time inundation mapping in those additional river reaches in the state capable of producing real-time flood inundation mapping based on National Weather Service gage predictions particularly on the Rock, Wabash, and Fox River Watersheds.

• Updating the current Map Revision and new study guide to explain the IDNR/OWR review process and data requirements for a complete submittal is scheduled for completion in April 2018.

• Resolving levee accreditation issues in Illinois where levees remain un-accredited and county mapping remains in an unapproved status, limiting the use of new mapping data. An unaccredited levee in Peoria County has prevented the adoption of improved floodplain and floodway maps. Resolution of the accreditation issue will lead toward improved mapping along the Illinois River in Peoria County.

• Continuing efforts to resolve unsteady modeling-based floodway determination issues. Use of unsteady models in Illinois represents the latest in technology when modeling watersheds and the dynamic response of floodplains. Unsteady models are encouraged by Illinois but the use of unsteady models to develop floodways has proven to be problematic.

24

State of Illinois FEMA Partnership CTP Activities CTP Risk MAP Activities ISWS staff perform ALL activities awarded under CTP grants. ISWS works collaboratively with the IDNR/OWR and with other agencies such as the USACE to perform project work. Below is a list of the tasks performed by ISWS and IDNR/OWR. Table 5 lists current FEMA projects. • Planning (IDNR/OWR and ISWS) • Discovery • Deployment and Mitigation Action • Hydrology and hydraulics (IDNR/OWR and ISWS) • Floodplain mapping and Flood Insurance Study writing • DFIRM database development • Community Flood Risk Review Meetings • Non-Regulatory Products (Changes Since Last FIRM; Depth and Analysis Grids; HAZUS) • Preliminary Map Products • Public Open House and Community Officials Meeting • Manage Comments and Appeals • Adoption IDNR/OWR • Effective DFIRMs – Revalidation Letters • LOMR delegation (MT-2 application review)

CTP Program Management IDNR/OWR are responsible for CTP Program Management tasks, which include: • Global Program Management Activities • Outreach for Mapping • Training to State and Local Officials • Flood Hazard Risk Assessments • Mitigation Planning Technical Assistance

• Staffing • Technical Pilot Projects • Mentoring • Minimal Map Printing • CNMS

Risk MAP Deployment CHAMP has conducted Discovery in eleven HUC8 watersheds since 2010 under various Mapping Activity Statements. There are four counties which did not have effective FIRMs at the initiation of the Risk MAP program and are considered “conversion counties” as certain Risk MAP activities were performed.

IDNR/OWR participates in Discovery meetings as the State NFIP coordinator to evaluate future study and hazard mapping needs. The IDNR/OWR participation in Risk MAP activities is described in PM SOW No. IDNR/OWR 2016-01, which was executed August 2016. IDNR/OWR has participated in Risk MAP activities since the SOW was executed. Please refer to Table 7 for the Discovery Seven-Year Plan.

Figure 3 shows the HUC8 watershed and counties where Risk MAP products have been funded through FFY2017.

25

Figure 3. Region 5 RiskMAP Status as of November, 2017

26

Table 5. Summary of Current CTP Projects

MAS Number MIP Case Number Project Name Comments ISWS13-12 NA Program Management In progress

ISWS 13-05 14-05-4890S (RMP) 14-05-4891S (RMP) Peoria Countywide DFIRM and FIS Preliminary Maps and Post Processing ISWS cannot obtain QR3 pass

until levee issues are resolved ISWS15-01 NA Program Management In progress

ISWS15-05 13-05-2653S Upper Fox HUC8, Hydrology and Hydraulics

Hydrology and hydraulic modeling in progress: Spring Creek, Poplar Creek, Chain-of-Lakes - Hydrology, Fox River (1.5 miles, at Wisconsin state line, unverified, Zone AE)

ISWS 15-06 13-05-4873S Will County Illinois Post Preliminary Process for Revised Countywide DFIRM

Federal Register published 10/26/2017 Work in-progress to initiate Appeal Period

IDNR-ISWS 15-01 13-05-2653S Upper Fox HUC8, Nippersink Creek Hydrology and Hydraulics In progress, planning

community outreach meeting

IDNR-ISWS 15-03

16-05-2865S / 16-05-2873S (Depth Grids)

CERC, Upper Fox HUC8, Poplar Creek Risk Assessment In progress

EMW-2015-CA-00186

Data completed for 1st floor and low water entry along Poplar Creek and provided to ISWS; cross section and structure data completed for Nippersink Creek and provided to ISWS; post for Mapping and CTP Coordinator position; review of mapping studies and CTP-related community outreach

In progress

ISWS 16-01 Program Management In progress

ISWS 16-02 17-05-1483S DuPage Countywide DFIRM Revised Preliminary Products and Post Preliminary Processing

FHD notice and Interim FEDD file review is in progress. After approval and routing, the notice will be put in the que for Federal Register publication. Continuing monthly coordination calls with DuPage County.

ISWS16-03 17-05-1776S Cook County PMR Mill and Tinley Creek Watersheds Anticipate Open House January 2018

ISWS 16-04 17-05-1609S Ford County Data Development In progress and on schedule

27

MAS Number MIP Case Number Project Name Comments ISWS 16-05 17-05-1692S Warren County Data Development In progress and on schedule

EMC-2016-CA-00003

Along with FEMA and contractor, conduct initial outreach in Lake and Cook Counties for new V-Zone determination mapping and continue Upper Illinois Valley Resilience Alliance Coordination; State of Illinois Joint Business Plan updates; with USGS and NRCS, secure LiDAR mapping in LaSalle County; with ISWS and IDCEO, secure LiDAR mapping in Cass, Greene, Hancock, Macoupin and Montgomery Counties; with Silver Jackets, conduct Flood Hazard Risk Assessments in Rock Island; with ISWS and IDCEO, conduct Flood Hazard Risk Assessments in Rock Island County, Peoria County and portions of LaSalle County; update State of Illinois Bulletin 70 Rainfall Frequency information; compile foot-by-foot gage related inundation mapping for communities along the upper Mississippi River; update State of Illinois Park 3700 Floodplain Administrative Rules and create new General Permits; review mapping studies and perform CTP-related community outreach

In progress

ISWS 17-01 NA Program Management In progress ISWS 17-02 TBD Kishwaukee Watershed - Discovery Initiating project ISWS 17-03 TBD Little Wabash Watershed - Data Development to Preliminary Initiating project ISWS 17-04 11-05-0090S Lake County PMR - Bull Creek, Glenn Flora, Dead Dog and Mill Creek Passed KDP2 11/7/2017 ISWS 17-05 TBD Winnebago County - Data Development to KDP2 - Turtle Creek Initiating project 2018

ISWS 17-06 TBD Lower Rock Watershed - Data Development to KDP2 (select Zone A in Rock Island, Whiteside, and Henry Counties) Initiating project 2018

ISWS 17-07 13-05-4873S Will County - Countywide DFIRM - PPP See above - continuation of prior MAS

ISWS 17-08 TBD Lower Wabash Watershed - LAMP - Mt. Carmel Levee Initiating project 2018

ISWS 17-09 TBD Lower Rock Watershed - LAMP (Penney's Slough, Zuma-Canoe, Rock Creek levees) Initiating project 2018

ISWS 17-10 Kankakee County PMR - Revalidation See above - continuation of prior MAS

EMC-2017-CA-00001-S01

State of Illinois Joint Business Plan updates; pre-survey work for modeling and mapping updates in the Little Wabash Watershed; create individual structure flood risk assessments for inclusion in the statewide structural flood risk assessment database; create video with IAFSM highlighting 25th anniversary of 1993 Mississippi River flood; update State of Illinois Part 3700 Floodplain Administrative Rules and creating new general permits; review mapping studies and perform CTP-related community outreach

In progress

28

Statewide Flood Risk Assessment and Prioritization It is the goal of State of Illinois to develop a statewide assessment of flood hazard risk for every structure located within a designated floodplain in the state of Illinois. Based on known structure types, structure appraised values, and surveyed first floor/low entry information, the state intends to create a statewide GIS database of such assessments to help prioritize federal, state and local mitigation assistance, estimate event related flood damages, update community hazard plans, and evaluate potential structural flood damage reduction projects. Cook County has already completed such work in their county. IDNR/OWR and ISWS partnered with the City of Rockford in the Lower Rock HUC-8 to complete such an assessment of flood hazard risk in the City of Rockford and vicinity in 2014 and 2015. Now that the City of Rockford is completed, we are using this project to show other communities what they can do. IDNR/OWR and ISWS are working with the Corp of Engineers’ Silver Jackets to perform flood risk assessments of Rock Island and Hunt-Lima Levee District. We are also working with the Illinois Department of Commerce and Economic Opportunity (IDCEO) to work with other larger communities in downstate Illinois. Urban Flooding Awareness Act Report The Urban Flooding Awareness Act (UFAA) Report published on June 30, 2015 investigates the impacts and possible remedies related to “urban” flood damages in Illinois. As part of the study effort IDNR/OWR and ISWS in cooperation with the IAFSM in partnership with the ASFPM Foundation held a Flood Risk Symposium on February 10, 2015. The research led to 33 recommendations grouped by four levels of responsibility, some of which require legislative action, executive authority, state agency engagement, community action, and action by an informed public. One of the recommendations proposed is that all Illinois counties be granted authority to adopt countywide stormwater ordinances, projects, and programs. IDNR/OWR coordinated with the Center for Neighborhood Technology (CNT) on SB1337 sponsored by Senator Resin (previously Steans SB1507) and HB2756 (Representative Cassidy and Fortner sponsors) concerning county stormwater authority statewide and issues raised by the Association of Realtors. All known previous objectors are satisfied with the current version of the bill. While the bill did not make it to third reading on the floor prior to June 1, 2017, it is expected to be reintroduced in the next legislative session.

The UFAA Report also recommended an update to rainfall frequency analysis (estimated $350,000) to replace the 25-year-old Bulletin 70 analysis. This work has been started by the ISWS with funding from IDCEO. Additional funding will be needed to integrate innovative climate change model results into future rainfall frequency values for inclusion in the update to the state rainfall frequency calculations. This will allow communities planning for climate resiliency to address the current and future risk of heavy rains.

29

Coordinated Needs Management Strategy (CNMS) The CNMS database is being used to determine future FEMA study and mapping needs throughout the state in deployed watersheds. CNMS Mapping Activity Statement No. IDNR10-01_ISWS10-12 was executed September 2010 and resulted in the development of the CNMS database for all Illinois stream segments by ISWS and quality control evaluation of the database by IDNR/OWR. CNMS Mapping Activity Statement No. IDNR11-01_ISWS11-13 was executed August 2011 and allowed to expire by FEMA on 9/30/14. That previous MAS resulted in updates to the CNMS database by ISWS with approval from IDNR/OWR. In October 2017 STARR II completed an evaluation of expiring and remaining unknown miles. Currently, updates to the CNMS database by ISWS as part of project updates are reviewed and approved on an as-available basis by IDNR/OWR.

Summary of Coordinated Study Needs System Data Table 6 lists summaries of stream miles classified under the New Verified Unknown Engineering Standards (NVUE) were accessed from the CNMS database maintained by the ISWS, which is current as of October, 2017. The vast majority of streams in Illinois have only an approximate floodplain represented in the FIRM (Zone A). With respect to the validity of the engineering analyses, 13.8% of the mapped stream miles in Illinois are NVUE compliant. This does not include the stream miles in Illinois which have been identified as “unmapped” and yet a Special Flood Hazard zone should be shown. See Identification of Unmapped Special Flood Hazard Areas in Illinois, http://illinoisfloodmaps.org/sfharisk.aspx.

Table 6. CMNS Summary by HUC 8

HUC8 Name Being

Studied Deferred NVUE

Compliant To Be

Assessed To Be

Studied 04040001 Little Calumet-Galien 0 0 0 0 6.6 04040002 Pike-Root 14.8 0 8.9 0 13.7

05120108 Middle Wabash-Little Vermilion 0 0 0 0 43.5

05120109 Vermilion 44.8 0 99.3 0 265.7

05120111 Middle Wabash-Busseron 80 0 65 0 207.6

05120112 Embarras 0 0 70.2 0 793.7 05120113 Lower Wabash 125.9 0 55.7 0 161.4 05120114 Little Wabash 1,102.3 0 2.5 0 86.5 05120115 Skillet 8.3 0 0 0 349.9 05140202 Highland-Pigeon 0 0 9.3 0 0 05140203 Lower Ohio-Bay 0 0 86.5 0 357.4 05140204 Saline 0 0 87 1.2 466.3 05140206 Lower Ohio 7.4 0 24.4 0 243.7 07060005 Apple-Plum 0 0 82.8 0 383.2 07080101 Copperas-Duck 17.4 0 99.7 0 74.3 07080104 Flint-Henderson 122.8 0 5.3 0 527.9 07090002 Middle Rock 1 0 3.6 0 0 07090003 Pecatonica 0 0 196.4 0 175.2

30

HUC8 Name Being

Studied Deferred NVUE

Compliant To Be

Assessed To Be

Studied 07090004 Sugar 0 0 33.1 0 11.1 07090005 Lower Rock 238.2 0 326.8 0 340.4 07090006 Kishwaukee 0.8 0 129 32.5 553.8 07090007 Green 38 0 13.3 0 330.1 07110001 Bear-Wyaconda 0 0 10 1.4 217.5 07110004 The Sny 47.8 0 346.1 0 146.4 07110009 Peruque-Piasa 55.9 0 50.6 0 65.9 07120001 Kankakee 115.5 0 12.4 0 397.8 07120002 Iroquois 3.4 0 30.2 0 305.7 07120003 Chicago 15.1 0 100.2 0.9 291.8 07120004 Des Plaines 237.4 0 172.2 8.9 955.1 07120005 Upper Illinois 0 0 64.3 0 349.7 07120006 Upper Fox 252.2 0 103.1 0 180.5 07120007 Lower Fox 3.1 0 163.7 0 429.4

07130001 Lower Illinois-Senachwine Lake 47.2 0 58.7 0 679.7

07130002 Vermilion 49.8 0 48.9 0 409.9

07130003 Lower Illinois-Lake Chautauqua 305.2 0 54.2 0 259.9

07130004 Mackinaw 2.8 0 16.8 0 472.5 07130005 Spoon 156.9 0 13.4 0.4 599.5 07130006 Upper Sangamon 18.7 0 77.5 0 470.2 07130007 South Fork Sangamon 0 0 14.2 0 457 07130008 Lower Sangamon 29 0 1.8 0 318.3 07130009 Salt 0 0 15.3 0 675.3 07130010 La Moine 9 0 0 0 593.4 07130011 Lower Illinois 76.7 0 108.8 0 676.8 07130012 Macoupin 0 0 0 0 225 07140101 Cahokia-Joachim 177.3 0 318.4 1.3 115.1

07140105 Upper Mississippi-Cape Girardeau 0 0 136.2 0 238.1

07140106 Big Muddy 7.3 0 57.3 0 1,124.8 07140108 Cache 101.9 0 50.2 13.2 138.8 07140201 Upper Kaskaskia 0 0 64.8 0 497.7 07140202 Middle Kaskaskia 22.3 0 30.4 0 780.7 07140203 Shoal 0 0 13.1 0 429.4 07140204 Lower Kaskaskia 467.7 0 76 0.3 565.4

Totals 4,003.9 0.0 3,607.6 60.1 18,459.3 % of Total Miles 15.3% 0.0% 13.8% 0.2% 70.6% Total Miles: 26,131

31

IDNR/OWR and ISWS Local, State, and National Associations Illinois Association for Floodplain and Stormwater Management (IAFSM) ISWS and IDNR/OWR staff hold officer and board positions. IAFSM is a state chapter of the ASFPM. Its objective is to promote the common interest in floodplain and stormwater management, enhance cooperation among various local, state, and federal agencies, and encourage effective and innovative approaches to managing the State's floodplain and stormwater management systems. The IAFSM annual conference, which attracts approximately 500 attendees each year, provides an effective venue for floodplain and stormwater training, continuing education, FEMA messaging, and professional collaboration statewide. Outside of the conference, IAFSM facilitates and promotes education and outreach around the state for: the CRS program, effective floodplain and stormwater management, legislative awareness, hazard mitigation, collaborative community assistance, the State of Illinois CFM certification, and local official support. Members of IAFSM gain the ability to communicate a uniform position on current concerns, rule changes, local programs and other issues impacting floodplain and stormwater management. The State of Illinois (IDNR and ISWS) is working with the IAFSM to create a video documentary highlighting the 25th anniversary of the 1993 Great Mississippi River Flood, including lessons learned from the flood, Illinois mitigation success stories after the flood, and remaining flood risks and challenges in Illinois. IAFSM Rapid Assistance Flood Team (RAFT): Following flooding in 2013, 2015, and 2017 the IAFSM RAFT team was assembled to assist the local floodplain managers in Watseka, Mason County and Fox Lake, respectively, with damage assessments. Staff from ISWS, IDNR/OWR, and several local communities participated in these efforts, which resulted in well over 200 damage assessments. Many of those damaged structures have since been elevated or demolished, thereby minimizing future flood damages. Association of State Floodplain Managers (ASFPM) The 2017 Annual National Conference was held in Kansas City, Missouri in June 2017. ISWS and IDNR/OWR provided multiple presentations for the conference. Amanda Flegel (ISWS) was elected as the ASFPM Treasurer for the 2017/2018 fiscal year. Illinois Geographic Information Systems Association (ILGISA) The Illinois GIS Association is the only statewide organization of GIS/geospatial professionals in Illinois. ILGISA advances the understanding, communication, and effectiveness of geospatial technology in Illinois. ILGISA connects over 500 members working in local, regional, state and federal government, higher educational institutions, and private industries. ILGISA offers a wide variety of programs that educate and inform the members. Training programs include an annual conference, regional meetings, training events, and webinars that address the ever-evolving geospatial technologies, applications and standards. ISWS staff have served on the Board of Directors and currently serve on committees. Involvement with ILGISA earns CEUs to maintain the GISP Certification. Ryan Meekma (ISWS) acted as Past-President and Clayton Ballerine (ISWS) participated on the Outreach Committee. ISWS information booths at the annual conference provide education about flooding and how GIS is used to identify and communicate the hazard and determine the risk.

32

Association of State Dam Safety Officials (ASDSO) IDNR Dam Safety Section engineers participate in ASDSO activities, conferences, and training to improve the condition and safety of dams through education, support for state dam safety programs and fostering a unified dam safety community. Illinois Valley Regional Resilience Alliance ISWS and IDNR/OWR staff attend quarterly meetings and present on topics as requested. Illinois Silver Jackets IDNR/OWR hosts the teleconference and in-person meetings of the Illinois Flood Risk Management Team (Silver Jackets). ISWS and IDNR/OWR staff attend quarterly meetings and present on topics as requested. The Illinois Flood Risk Management Team (IFRMT) brings together Federal and State Agencies to focus on four themes to reduce flood risk in Illinois: hazard mitigation, emergency response, structural flood reduction measures, and policy evaluation. The IFRMT strengthens intergovernmental partnerships within the State of Illinois that serve as a catalyst to develop and implement comprehensive and sustainable solutions to flood hazard challenges in Illinois. The IFRMT has four focus themes: • Illinois Mitigation Advisory Group (IMAG) – non-structural solutions, • Illinois Flood Management Group (IFMG) – structural solutions to flood reduction,

• Illinois Emergency Response Group (IERG) – emergency response and preparedness, and

• Illinois Policy Advisory Group (IPAG) – policy analysis. Current Projects • Upper Mississippi River System Hydraulic Modeling – Converting the UNET model to HEC-

RAS unsteady flow model. The reach of the Mississippi River is Keokuk, IA to Thebes, IL

• Fast Track to Borrow Tool Phase 3 – GIS development for locating burrow site areas quickly following a flood

• Structural Flood Damage Assessments for structures located behind the Rock Island Levee System o IDNR survey data collected and provided to the USACE for assessment o IDNR project coordination

• Flood Zone Alliance - Documentation for starting a Flood Zone Alliance (FZA) based on the Upper Illinois River area o IDNR establish FZA working group o IDNR document what worked and what did not o IDNR coordination and facilitation of FRM initiatives

• Flood Risk Preparedness Communication Rock Island Levee Breach • Des Plaines River Flood Inundation Mapping – Combining the flood inundation maps with the

structure survey

33

o IDNR – Inundation Mapping – Real-time vs static incremental mapping o IDNR – Develop map products o IDNR – Coordination with Lake County

• Mobile Information Collection Application (MICA) Phase 3 – MICA development of exporting capabilities o IDNR – Field testing of the device

• NE Illinois Climate Change – Update the Des Plaines River models to HEC-HMS and HEC-RAS o IDNR – Update to HEC-RAS model

2018 IFRMT (Silver Jackets) Proposals • Upper Mississippi River Communities Inundation Mapping and Risk Assessment – Combines

the incremental inundation mapping for the unprotected communities on the Mississippi River with structure first floor data. o IDNR – Survey of first floor data o IDNR – Add survey data to inundation maps o Outreach – Help communities understand the mapping

• Lower Silver Creek Floodplain Management Plan – Plan development to determine structural flood damages and road closures. Determine specific action items with timing. o IDNR – Review of plan

• Jersey County Loss Avoidance Study – Determine how excellent floodplain management has prevented both the monetary and societal costs of flooding. Study will be used to promote floodplain management to other communities. o IDNR – Gather data on elevation data

• USGS Real-time Stream gage Linked inundation Maps o IDNR – No involvement

• Rock Island County Structural Flood Damage Assessment – Building on the Rock Island Levee project of FY-17, structures behind the East Moline, Milan, and Big Island levees will be analyzed for flood damages. o IDNR – Collection of structure survey data o Project coordination

• Interagency Levee Safety Proposal – Evaluate and communicate changes to levee elevations and potential impacts o IDNR – Coordinate the planning and training to entities in Illinois and facilitate exploration

of potential solutions

34

State of Illinois FEMA Partnership Funding Requests

Programmatic and Staffing

Current FEMA CTP Program Management funding for IDNR/OWR is less than a third of the funding necessary to complete FEMA CTP Mapping and Mitigation activities. IDNR/OWR Mapping Coordinator IDNR/OWR Division of Resource Management Mapping Coordinator is needed to oversee mapping issues and work with FEMA and other state and local entities to assure continued improvements to flood hazard risk identification mapping in Illinois. IDNR/OWR General Revenue Personnel Services funds are not currently sufficient to fill this position. IDNR/OWR Floodplain/Floodway Studies and Revisions Review Staff IDNR/OWR takes seriously its role to review floodplain/floodway studies and revisions for compliance with state rules and policies in a timely manner and has developed and now maintains a database on the IDNR/OWR website of floodplain map revision and study review requests and review status for public information. Additional funding sources to support additional full-time staff in this program will improve the timeliness of necessary floodplain study and mapping reviews. ISWS-FEMA Partnership Programmatic Funding Requests Program management funds are requested to maintain the illinoisfloodmaps.org website and for general program management. Mapping Study Repository A single site repository is necessary to “house” all existing, updated and new floodplain hydrologic, hydraulic and floodway models in the State of Illinois. Such models that are the basis for flood insurance studies, regulatory mapping, and regulatory analysis purposes must be free and readily available to the public for use. The FEMA Map Library is the most logical repository for this information in Illinois. The State of Illinois has continued to press FEMA about this repository and the need to determine which models are already in the FEMA Library, which models are missing and where the missing models are located (ISWS, IDNR, consultants, etc.).

Completion of Statewide Digital Mapping Figure 4 illustrates the 20 counties that remain without improved flood hazard mapping in a digital format. These counties are: Ford, Warren, Stark, McDonough, Shelby, Fayette, Effingham, Jasper, Clay, Richland, Wayne, Edwards, Hamilton, Johnson, Pope, Massac, Macoupin, Montgomery, Bond and Washington. Effingham and Clay Counties have been funded for mapping to preliminary but not for release of preliminary products.

Completion of LiDAR Acquisition The Illinois LiDAR inventory status is shown Figure 5. The completion of LiDAR acquisition in Illinois would allow for improved digital mapping updates.

35

Figure 4. DFIRM Status in Illinois

36

Figure 5. LiDAR Status in Illinois

37

Figure 6. Availability of LiDAR in Counties without DFIRMs, November 2017

38

Discovery and Outreach Discovery A multi-year plan for initiating Discovery has been developed based on FEMA projections for initiation of Discovery projects. It is shown in Table 7. The selection of HUC8 watersheds for Discovery supports two goals for the State of Illinois: 1) identification of technical and mitigation needs and 2) information gathering for IDNR/OWR watershed planning and flood risk management and mitigation objectives. Information gathered can be used to determine if further state action is warranted. LaSalle County The confluence of the Fox River and the Illinois River is in LaSalle County. As noted in the section “Priority Streams for Hydrologic and Hydraulic Studies FFY2018,” the Fox River effective study is unverified and is a priority for new hydrologic and hydraulic study. Also, as discussed in “Priorities for Flood Insurance Rater Maps Countywide and PMRs,” LaSalle County would be a priority for updated mapping. Given that the Lower Fox River Discovery was conducted almost seven years ago, it is timely to reengage with the stakeholders to update information on needs in FFY2018.

Table 7. Discovery Seven-Year Plan

Federal Fiscal Year

Federal Fiscal Year

HUC Number HUC Name Project Planning and

Budgeting (KDP0) Discovery (KDP1) 7090006 Kishwaukee 2017 funded 2017 7120005 Upper Illinois 2018 2018 7130001 Lower Illinois-

Senachwine Lake 2018 2018

7120001 Kankakee 2019 2019 7140204 Lower Kaskaskia 2019 2020 7140202 Middle Kaskaskia 2019 2020 7140201 Upper Kaskaskia 2020 2021 7120002 Iroquois 2020 2021 7130008 Lower Sangamon 2021 2022 5120112 Embarras 2021 2022 7130010 La Moine 2022 2023 7130012 Macoupin 2022 2023 5120115 Skillet 2023 2024 7130005 Spoon 2023 2024 7130007 South Fork Sangamon Not Scheduled 5120109 Vermilion (Wabash) Not Scheduled 7060005 Apple-Plum Not Scheduled 7140106 Big Muddy Not Scheduled 7080101 Copperas-Duck Not Scheduled

39

Federal Fiscal Year

Federal Fiscal Year

HUC Number HUC Name Project Planning and

Budgeting (KDP0) Discovery (KDP1) 7130002 Vermilion (Illinois) Not Scheduled 7090003 Pecatonica TBD

7110001 Bear-Wyaconda Not Scheduled

7140101 Cahokia-Joachim Not Scheduled

7080104 Flint-Henderson Not Scheduled

7090007 Green Not Scheduled

4040001 Little Calumet-Galien Not Scheduled

7130011 Lower Illinois Not Scheduled

7130003 Lower Illinois-Chautauqua Not Scheduled

5140206 Lower Ohio Not Scheduled

5140203 Lower Ohio-Bay Not Scheduled

7130004 Mackinaw Not Scheduled

7090002 Middle Rock Not Scheduled

5120108 Middle Wabash-Little Vermilion Not Scheduled

7110009 Peruque-Piasa Not Scheduled

4040002 Pike Root TBD 7130009 Salt Not Scheduled

7140203 Shoal Not Scheduled

7090004 Sugar Not Scheduled

7110004 The Sny Not Scheduled

7140105 Upper Mississippi- Cape Girardeau Not Scheduled

7140108 Cache Complete Complete 7120003 Chicago Complete Complete 7120004 Des Plaines Complete Complete 5120114 Little Wabash Complete Complete

7120007 Lower Fox Complete Complete 5120113 Lower Wabash Complete Complete

5120111 Middle Wabash-Busseron Complete Complete

7090005 Lower Rock Complete Complete 5140204 Saline Complete Complete 7120006 Upper Fox Complete Complete 7130006 Upper Sangamon Complete Complete

40

Priority Streams for Hydrologic and Hydraulic Studies FFY2018 There are numerous hydrologic and hydraulic study needs throughout the state. Hydrologic and hydraulic analyses should be initiated for study needs identified through the Discovery process to the extent that funding allows. Priority streams for hydrology and hydraulic study that have already been identified include the following.

Fox River The effective study for the main stem of the Fox River is unverified. An updated study of the Fox River is a priority. Additional study needs include a request for a catastrophic inundation study for Dayton Hydro Dam for mapping and evacuation purposes in case of damage to the infrastructure of the dam or dam failure. Also requested is a comprehensive report on historical ice jam flooding, which could assist floodplain managers, communities, and FEMA in mitigating risks due to ice jams. Specific reaches subject to ice jams are the Lower Fox River from the confluence with the Illinois River to Sheridan, IL (includes LaSalle County, Ottawa, Dayton, Wedron, and Sheridan) and in the Fox River throughout Kane County (including Montgomery, Aurora, North Aurora, Batavia, Geneva, St. Charles, South Elgin, Elgin and Dundee). Funding to begin a watershed hydrologic study of the Fox main stem is requested for FFY2018. Wabash River (Lower Wabash and Middle Wabash – Busseron HUC8) The IDNR/OWR has made the Wabash River a priority for study. Survey work has been completed, and hydraulic modeling is expected to be completed early in calendar year 2018. IDNR/OWR has been coordinating with Indiana (IN) DNR on this study. Updated mapping of the Wabash River corridor is a priority for both states. ISWS and IN DNR (CTP) conducted the Discovery as a joint project in the Middle and Lower Wabash and are prepared to coordinate mapping efforts. Two Illinois Counties, Edwards and Wabash, are within the Lower Wabash and Little Wabash. Hydrologic and hydraulic data development for Bonpas Creek in FFY2018 is needed to move forward with a modernized countywide DFIRM for Edwards County and a PMR for Wabash County. ISWS is tasked with a LAMP project for the Mt. Carmel levee on the Wabash River in Wabash County. PMRs for Clark, Crawford, Lawrence, White, and Gallatin Counties will be needed to incorporate the Wabash River updated study. Several base model engineering studies will be needed for tributaries to the Wabash River in these counties that currently are shown as unverified Zone A (non-model backed). Bonpas Creek and the adjoining counties are shown in Figure 7. Sangamon River (Upper Sangamon HUC8) Although not a high priority for the state, the main stem of the Upper Sangamon River has been the subject of several FEMA initiated studies. Hydrology has been completed. An assessment of effective hydraulic models and available model data have been assembled in a draft working HEC-RAS model. The level of study recommended and the priority have been established. The summary is provided in Table 8.

41

Figure 7. Bonpas Creek and Neighboring Counties

42

Table 8. Sangamon River Study Needs

43

Priorities for Flood Insurance Rate Maps Countywide and PMRs

LaSalle County LaSalle County would be a priority for updated mapping for a number of reasons, which include: • The confluence of the Illinois River and the Fox River, which has an unverified effective study

(discussed in "Priority Streams for Hydrologic and Hydraulic Studies FFY2018”), is in LaSalle County

• New high resolution LiDAR will be available for LaSalle County by 2019 • Although in DFIRM format, the Zone A floodplains are not model backed • Dayton Dam, which is a high-risk dam, is located in LaSalle County • The City of Ottawa in LaSalle County is a focal point for the Illinois Valley Flood Resilience

Alliance

Ford and Warren Counties Ford and Warren Counties’ effective FIRMs are still in the paper format. Data development of approximately 342 miles of effective Zone A streams was funded for these counties in FFY2016 and will be completed and ready for County wide DFIRM production in FFY2018. Henry, Rock Island and Whiteside Counties PMR – Rock River The study of the Rock River performed by the USACE and ISWS in Henry, Rock Island, and Whiteside Counties shows increased flood hazard. IDNR/OWR recognizes the need for updating the FIRMs for these counties as FEMA continues to fund progress to that end. Wabash River (Lower Wabash and Middle Wabash – Busseron HUC8) The IDNR/OWR has made the Wabash River a priority for study as noted in the section on hydrologic and hydraulic studies. ISWS and IN DNR (CTP) conducted the Discovery as a joint project in the Middle and Lower Wabash and are prepared to coordinate mapping efforts. Two Illinois Counties, Edwards and Wabash are within the Lower Wabash and Little Wabash. The update of the Little Wabash River study is underway. ISWS is tasked with a LAMP project for the Mt. Carmel levee on the Wabash River in Wabash County. PMRs for Clark, Crawford, Lawrence, White, and Gallatin Counties will be needed to incorporate the Wabash River updated study.

Action Mitigation Flood Hazard Risk Assessment Funding is needed to complete Flood Hazard Risk Assessments in the remaining HUC8 watersheds starting with the Rock River and Fox River to prioritize mitigation actions in those watersheds. Structure specific risk assessments are the highest priority for the state for Action Mitigation. Existing structure first floor survey information is available in several watersheds in the state that will allow for detailed structural risk assessments including Rock Island County, Kiswaukee River floodplain, North Branch Chicago River floodplain, Des Plaines River floodplain, DuPage River in Will County and the city of Effingham as funding allows.

44

Through the Discovery process a number of projects have been identified to reduce flood risk. Table 9 provides a list of mitigation action projects identified through Discovery. The State of Illinois has created a library of Mississippi River flood inundation maps at different stages for the Illinois communities not protected by levees along the Mississippi River. The interpolated flood maps were created so that one-foot increment stage readings at the nearest river gage could be properly mapped at an at-risk community using LiDAR-based topography and the hydraulic river profiles developed by the USACE Flow Frequency Study. It is the intent of the State of Illinois to develop a database (and/or PDF booklet) of structural flood damage assessments for each of these communities to be used by the communities to inform individual property owners of their flood risk, to prioritize flood hazard mitigation activities, and to better predict and prepare for impending flood conditions, resulting in more resilient communities. Long-term floodplain/levee management on the Mississippi River requires this better understanding of existing flood risks along the river in Illinois. Funding of some of these projects in FFY2018 will provide crucial follow up to the process and demonstrate FEMA’s commitment to these communities who have actively participated in the process. Demonstrating to these communities that participation leads to better risk identification and management will inspire other communities to actively engage in the Risk MAP process as Discovery is initiated in other watersheds.

45

Figure 8. HUC8 Watershed Federal Fiscal Year

46

Table 9. Summations of Mitigation Projects Identified Through Discovery and Action Discovery*

Watershed County Community Flood Risk Area Mitigation Project

Action Status Action Needed

Confirmed/ Unconfirmed

(C/U)

Action Taken

Pike Root Lake Beach Park

Various locations in the community experience flooding and hazard is not reflected in FIRMs

Flooding issues in several neighborhoods and new stormwater studies are underway. Current flood studies do not reflect the observed flood hazard. Comments from Flood Risk Review Meeting July 22, 2015.

C

Middle Wabash (Busseron)

Edgar Metcalf West Street Complete storm drainage project by installing 2,535 feet of pipe

Middle Wabash (Busseron)

Clark Marshall, City of

Urban and basement flooding Archer Avenue to Vine Street and Illinois 1 to 14th Street

Combine sewer separation project U

Middle Wabash (Busseron)

Crawford Robinson, City of

Two areas of flooding within the community

Investigate sources of flooding and mitigate pinch points U

Middle Wabash (Busseron)

Crawford Palestine, Village of

Levee seepage along Wabash River

Levee repair project U

Middle Wabash (Busseron)

Clark Unincorporated Darwin

Overtopped road north of Lawrence gravel pit

Critical facilities and emergency vehicles are no longer accessible to the residents of Darwin when road overtopped. This area of the road needs to be elevated.

U

Lower Wabash

Edwards and White

Grayville, City of

Bonpas Creek flooding

Drainage of Bonpas Creek to the Wabash River is impeded due to meander change in the Wabash River limiting outlet capacity

U

Lower Wabash Edwards Albion, City of Water treatment

plan Relocate water treatment plant to area above the 0.2% annual chance flood U

Lower Wabash Edwards Albion, City of

N 4th Street and N 5th Street residential neighborhoods

Urban flooding, storm sewer back up and basement flooding U

Lower Wabash Lawrence St. Francisville,

Village of Raccoon Creek, Rte. 1 overtopping

Road elevation, culvert replacement and stream bank stabilization C

47

Watershed County Community Flood Risk Area Mitigation Project

Action Status Action Needed

Confirmed/ Unconfirmed

(C/U)

Action Taken

Lower Wabash Richland Calhoun,

Village of

Bonpas Creek East at Otterbein Lane and County Road 420N SE.

East Otterbein Lane, SE of the Village of Calhoun, floods several times per year when Bonpas Creek overtops, with flooding lasting for more than a day. A structure and infrastructure project for flood control and flood management is needed to improve the drainage of Bonpas Creek at East Otterbein Lane.

C

Lower Wabash Wabash Patton

Crawfish Creek and Tributaries, E 1100 Rd northwest of Patton, N 1900Blvd to N 2200 Blvd and Hwy 1 at E 1200 Rd

Frequent road overtopping C

Lower Wabash Wabash Keendburg,

Village of

IL Rte. 1 NE of Keendburg below confluence of Sugar Creek

Coffee Creek frequently overtops the road, culvert replacement indicated C

Lower Wabash Wabash Mount Carmel,

City of IL Rte. 1 east of city

Wabash River north of Mt. Carmel frequently overtops, flooding Rte. 1. A structure and infrastructure project with culvert expansion/modification for flood control and flood management is needed.

C

Lower Wabash Wabash Mount Carmel,

City of Greathouse Creek at IL Rte. 1

Greathouse Creek frequently overtops Rte. 1, west of Empire St., north of Mt. Carmel. A structure and infrastructure project with culvert expansion/modification for flood control and flood management is needed.

C

Lower Fox LaSalle Ottawa

Dayton Hydro Dam / OSF St. Elizabeth Medical Center south (downstream) of the dam

Catastrophic Inundation Study for Dayton Hydro Dam for mapping and evacuation purposes in case of damage to the infrastructure of the dam or dam failure

U

Lower Fox LaSalle and Kane

Aurora, Ottawa, Sheridan, LaSalle County, Kane County

Fox River Ice Jams

A comprehensive report on historical ice jam flooding could assist floodplain managers, communities, and FEMA in mitigating risks due to ice jams. Specific reaches identified were the Lower Fox River from the confluence with the Illinois River to Sheridan (includes LaSalle Co., Ottawa, Dayton, Wedron, Sheridan) and the Fox River throughout Kane Co. (including Montgomery, Aurora, North Aurora, Batavia, Geneva, St. Charles, South Elgin, Elgin, Dundee)

C

48

Watershed County Community Flood Risk Area Mitigation Project

Action Status Action Needed

Confirmed/ Unconfirmed

(C/U)

Action Taken

Lower Fox Kane Aurora

South Park Subdivision, located in floodplain area adjacent to Mastodon Lake

South Park Subdivision, a residential area north of Montgomery Rd. and West of Hill Ave. in Aurora, experiences first floor and basement flooding. Proposed mitigation action is to construct a storm sewer to provide positive drainage from the depressional area. The project is expected to protect 38 low-to-moderate income homes and 4 roads from flood damage. Preliminary engineering has been completed, and the project is expected to cost $1,100,000 and could be completed in 12-18 months. The cost could be covered by a combination of local contribution, Aurora Township, Kane County, and FEMA.

U

Lower Fox Kane Aurora

Single family homes constructed in the 1970s along Johnston and Lindenwood Drives south of Jericho Road near a CNMS unverified Zone A floodplain from Fox River Tributary

The current tributary alignment is clearly outside of the mapped Zone A floodplain, as are a number of the homes experiencing first floor and basement flooding. A flood study of the area and concept level engineering has been completed for a project to re-sculpt the topography on an adjacent 5-acre farm parcel to the east of Lindenwood Dr. and create detention storage for floodwaters previously impacting the neighborhood. The project is expected to alleviate flooding for 9 or more homes and 2 roads. The project is expected to cost $300,000 and take 12 to 18 months. The cost could be covered by a combination of local contribution, Aurora Township, Kane Co., and FEMA.

U

Upper Sangamon Macon Decatur

Meadowlark Subdivision, bounded on the north by Spring Creek Tributary and the northwest by IL-48

Comments received during Action Discovery indicate several properties and roadways within the Meadowlark Subdivision are subject to regular flooding. Spring Creek Tributary East flows through the subdivision from the southeast to the northwest. A stormwater study in this area would determine what type of management may improve flooding conditions within the subdivision, both for present conditions and for future conditions. Areas of undeveloped land drain to Spring Creek Tributary and Spring Creek Tributary East, so without a flood management plan for current issues, this area is liable to worsen with future development.

U

49

Watershed County Community Flood Risk Area Mitigation Project

Action Status Action Needed

Confirmed/ Unconfirmed

(C/U)

Action Taken

Upper Sangamon Macon Decatur

Meadowlark Subdivision, bounded on the north by Spring Creek Tributary and the northwest by IL-48

Meadowlark Dr. bridge between Hummingbird Dr. and Whippoorwill Dr. in Meadowlark Subdivision conveys Spring Creek Tributary East northwest through Meadowlark Subdivision to its confluence with Spring Creek. The bridge is undersize and causes upstream flooding within the subdivision. A study to determine the correct size of the bridge, for both current and future watershed conditions, would lead to mitigation of upstream flooding in the subdivision and identify areas in the watershed that are exacerbating flooding, so mitigation plans can be developed to address them.

U

Upper Sangamon Macon Decatur

West McKinley Avenue, a local collector street that services Decatur Memorial Hospital, begins where Spring Creek intersects with IL-48

On the north side of McKinley Avenue, a ditch parallels the road and drains into Spring Creek, a detailed study with floodway. During storm events flooding occurs in the ditch and overtops McKinley Avenue, creating a driving hazard and potentially eliminating an ingress/egress route for a critical facility. Hydrologic and hydraulic analysis must be performed to determine the full nature of the flooding condition. Upon identifying the underlying conditions of the flooding, actions to mitigate might include altering the ditch to accommodate the amount of drainage reaching the ditch, improving or diverting local drainage paths, or adjusting outlet configurations on the adjacent stormwater detention basin.

U

Upper Sangamon Macon Decatur

Grays Lane, north of IL-121 N and south of CR-22, situated east of Stevens Creek

Erosion from Stevens Creek along Grays Lane is threatening residential structures and causing damage to property. Stevens Creek is a detailed study with floodway and classified as unverified within CNMS. The erosion problem could be mitigated by stream stabilization of Stevens Creek along the meander near Grays Lane, or by the constructing a stable swale to direct runoff from Grays Lane towards Stevens Creek.

U

50

Watershed County Community Flood Risk Area Mitigation Project

Action Status Action Needed

Confirmed/ Unconfirmed

(C/U)

Action Taken

Upper Sangamon Macon Decatur

Northeast Drainage Ditch/originates from a large detention basin at the intersection of Pershing Rd. and N 22nd St. in Decatur

Northeast Drainage Ditch runs due north to confluence with Spring Creek near E Mound Road. Comment 25C, received during Action Discovery, indicates that Northeast Drainage Ditch has inadequate capacity for the amount of drainage reaching this waterway. Several properties flood along the ditch. A study within this area would determine what type of stormwater management may improve flooding conditions along the ditch, both for present conditions and future conditions. Potential land for future development lies within the drainage area for Northeast Drainage Ditch, so a management plan to address present and future flooding issues in this area is apropos.

U

Upper Sangamon Macon Decatur

Spring Creek, immediately down-stream of the Spring Creek Tributary confluence, on Mound Road and E Finch Drive

Several properties along Mound Road flood on a regular basis. These properties are within the 1% annual chance floodplain, but may also flood during more frequent flood events. A study could be completed to determine areas of additional storage either in this area or upstream of this area to protect the properties or buyouts. ISWS is already engaged in a hydrologic and hydraulic study of existing conditions along this reach of Spring Creek as part of MAS ISWS11-18.

U

Upper Sangamon Macon Macon County

Repetitive loss properties on Pin Oak Lane

Properties on Pin Oak Lane have suffered repetitive loss due to flooding events. The best mitigation for this flooding problem is the buyout and demolition of these structures to avoid future repetitive loss. The Unnamed Tributary to Lake Decatur is a Flood Zone A study with an unknown CNMS classification.

U

Upper Sangamon Macon Macon County

Repetitive loss properties on East Lost Bridge Road

East Lost Bridge Road runs along the eastern shoreline of the Big Creek Arm of Lake Decatur. Long Creek Tributary crosses East Lost Bridge Road before it confluences with Long Creek and flows into Lake Decatur. Properties have undergone repetitive loss from flooding where East Lost Bridge Road crosses over Long Creek Tributary. To solve this flooding problem, a buyout of the properties would mitigate the flooding and prevent future repetitive loss in the area. Long Creek Tributary is a detailed study and classified as unverified within CNMS.

U

51

Watershed County Community Flood Risk Area Mitigation Project

Action Status Action Needed

Confirmed/ Unconfirmed

(C/U)

Action Taken

Upper Sangamon Macon Macon County

Repetitive loss properties on Kruse Road

Big Creek, southeast of Decatur, crosses Kruse Road and causes repetitive loss due to flooding of property. Buyouts of these properties would prevent future loss from flooding and mitigate current flooding issues. Big Creek is a detailed study and classified as valid within CNMS.

U

Upper Sangamon Macon Macon County

Candlebrook Estates; southeast of Decatur at the corner of Long Creek Road and Camp Warren Road

Several issues are contributing to the flooding problem in Candlebrook Estates such as excess overland flow from adjacent property draining into the subdivision which also contributes to sediment deposition within the neighborhood. Secondly, the subdivision’s stormwater system is unable to effectively manage the volume of water reaching the neighborhood. A stormwater study to needed to accurately determine how much water is coming from which adjacent property. Possible mitigation actions include a diversion channel or grass swale to direct overland flow around the subdivision to a safe area downhill, or a detention facility uphill of the subdivision. The current stormwater system capacity should also be investigated for a possible retrofit to handle excess water.

U

Upper Sangamon Champaign Mahomet

Sangamon River flooding – Village of Mahomet, Newcomb Township, Lake of the Woods

Sangamon River floods several areas experiencing rapid development north of the Lake of the Woods in Mahomet. The Sangamon River is a detailed study through the Lake of the Woods, but is a Zone A river north of the Lake of the Woods and classified as unknown within CNMS. Multiple LOMCs have been issued in this area to accurately represent areas prone to flooding. A new study should be performed on the Sangamon River and Big Ditch north of the Lake of the Woods to determine flooding boundaries and mitigate current and future flooding problems in the area. Another identified flooding concern in this area is where CR2500N crosses Big Ditch directly upstream of Big Ditch’s confluence with the Sangamon River. During flood events CR2500N regularly floods and overtops, indicating that the bridge was built too low for the flood conditions regularly occurring on Big Ditch. Big Ditch is a Zone A stream and is classified as unknown within CNMS.

U

52

Watershed County Community Flood Risk Area Mitigation Project

Action Status Action Needed

Confirmed/ Unconfirmed

(C/U)

Action Taken

Upper Sangamon Piatt Monticello Camp Creek Request from City – convert Zone A to Zone AE U

Upper Fox Lake and Kane

East Dundee, Elgin, Lake Barrington, Lake County, Kane County

Fox River ice jams

A comprehensive report on historical ice jam flooding could assist floodplain managers, communities, and FEMA in mitigating risks due to ice jams. Specific reaches identified were the Upper Fox River from Elgin to East Dundee (including Kane Co. and Richardson Subdivision), the Fox River throughout Lake Co. (including Lake Barrington and the Chain-of-Lakes), and Mattoon Creek in Lake Co.

C

Upper Fox Lake Fox Lake

Chain O’Lakes on the Fox River; Eagle Point Subdivision; Rte. 12 at Eagle Point Road (west of Rte. 12)

During the April, 2013 flood event the water surface elevation on the Chain O’Lakes crested at 741ft and caused damage to 400 homes in Fox Lake and damaged up to 600 more homes in the surrounding area. Eagle Point Subdivision, located on a peninsula on the east side of Pistakee Lake in the Village of Fox Lake, experiences frequent street and basement flooding. During the April, 2013 flood many homes had basement and first floor flooding and the subdivision was closed for 3 days. Numerous repetitive loss properties are located within the subdivision. Mitigation actions suggested by Fox Lake and Lake County to reduce future flood damages includes buyouts of repetitive loss properties, elevating flood prone properties, and basement waterproofing.

U

Upper Fox Lake Fox Lake

Residential area in the Village of Fox Lake near Grand Ave and Holly Ave; on the southwest shore of Fox Lake

Parts of Grand Avenue, Holly Avenue, and Keystone Avenue were closed for 2 days during the April 2013 flood event. Many properties are repetitive loss properties. Mitigation actions suggested by Fox Lake and Lake County to reduce future flood damages includes buyouts of repetitive loss properties, elevating flood prone properties, and basement waterproofing.

U

53

Watershed County Community Flood Risk Area Mitigation Project

Action Status Action Needed

Confirmed/ Unconfirmed

(C/U)

Action Taken

Upper Fox Lake Fox Lake Knollwood Subdivision, located on Duck Lake

Knollwood Subdivision, located on Duck Lake, is frequently flooded and suffered a major flood April, 2013. Duck Lake is hydraulically connected to Fox Lake and floods with the Chain O’Lakes accordingly. Many homes had basement and first floor flooding. Several homes are repetitive loss properties. Mitigation actions suggested by the Village of Fox Lake and Lake County to reduce future flood damages includes buyouts of repetitive loss properties, elevating flood prone properties, and basement waterproofing.

U

Upper Fox Lake Lake County

T-channel located in unincorporated Lake County on the east side of Pistakee Lake

The T-channel located in unincorporated Lake County on the east side of Pistakee Lake is one of the first areas on the Chain of Lakes which floods. Past mitigation has elevated several homes. Mitigation actions suggested by the Fox Lake and Lake Co to reduce future flood damages includes buyouts of repetitive loss properties, elevating flood prone properties, and basement waterproofing.

C

Upper Fox Lake Lake County Slocum Lake-Unincorporated Lake County

The low lying residential area on the south side of Slocum Lake includes several repetitive loss single family homes. The area is subject to backwater flooding from the Fox River. Property acquisitions and buyouts are the mitigation actions suggested by Lake County for 30 homes with a total estimated cost of $3 million.

Upper Fox Kane West Dundee Fox River

West Dundee reported repetitive loss properties (3 apartment buildings) at the corner of 6th St and Lincoln Ave on the bank of the Fox River. Buyouts were suggested to mitigate future flood damage.

U

Upper Fox Lake and McHenry Port Barrington Fox River

Port Barrington reported repetitive loss residential structures at 228, 230, and 232 Eastwood Ln. (south end of Eastwood Ln. on Fox River) in Port Barrington. Buyouts were recommended by Village engineer to mitigate future flood damage.

C

Upper Fox McHenry Lakemoor 390 Sheridan Road

Village of Lakemoor reported a repetitive loss residential structure at 390 Sheridan Road (south end of Sheridan Road) in Lakemoor. A buyout is recommended by the Village to mitigate future flood damage.

U

54

Watershed County Community Flood Risk Area Mitigation Project

Action Status Action Needed

Confirmed/ Unconfirmed

(C/U)

Action Taken

Upper Fox McHenry Crystal Lake, City of Crystal Lake

The area around and downstream of Crystal Lake is prone to flooding due to a high-water table in the area and inadequate drainage. During the original Upper Fox Discovery, the City of Crystal Lake noted that verification of the existing flood elevation of Crystal Lake was needed because the original model used to determine effective BFEs could not be found. Since that time the City hired a consultant to determine new BFEs. This is the first step in addressing numerous flooding issues around Crystal Lake.

U

Upper Fox McHenry Crystal Lake, City of

West, north, and northeast sides of Crystal Lake

During large storm events, areas on the west, north, and northeast sides of Crystal Lake are prone to basement, roadway, and sometimes first floor flooding. The west side of the lake does not have a storm sewer system or any organized major or minor drainage system. The ground-water is high in this area. Flooding occurs once the depressional areas fill. Four alternatives have been identified by the City which would reduce the peak flood elevations and inundation time for the depressional areas and these actions would help about 50 residents. The cost estimated by the City of Crystal Lake is $300,000.

U

Upper Fox McHenry Crystal Lake, City of

Crystal Lake - north side (East End Avenue, Greenfield Road and Crystal Beach Avenue)

Approximately 125 residents are affected by flooding as well as 3 residential roadways. The 3 roadways are overtopped, basements flood, and standing water is present for many days, sometimes weeks, causing concern for both mold and the West Nile virus. Standing water is present throughout the area. The groundwater in this area is very high and no specific drainage routes are identified for stormwater. Proposed improvements would include rerouting stormwater to a new drainage facility and providing a specified overland stormwater flow path. These improvements would also provide designated areas for stormwater to be stored until it can be infiltrated into the ground. The estimated cost by the City is $4 million.

U

55

Watershed County Community Flood Risk Area Mitigation Project

Action Status Action Needed

Confirmed/ Unconfirmed

(C/U)

Action Taken

Upper Fox McHenry Crystal Lake, City of

Crystal Lake - northeast side of Crystal Lake (south of IL 176, east of Lippold Park, west of US 14, north of Cove Pond)

On the northeast side of Crystal Lake approximately 50 residents and businesses are affected by flooding due to high groundwater in the area and inadequate major and minor drainage system. Proposed improvements include a new perforated storm sewer to improve the existing drainage within the area by lowering the shallow groundwater elevations and restoring the natural infiltration and storage capacity of the soil and depressional areas. The cost estimated by Crystal Lake is $250,000.

U

Upper Fox McHenry Crystal Lake, City of

Northeast side of Crystal Lake (south of Crystal Lake Avenue, east of Route 14, west of Oriole Trail, north of Carpenter Street)

At a second location on the northeast side of the lake 11 homes and 3 businesses are affected by frequent rear yard flooding and approximately 50 homes are affected periodically. Water also overtops Oriole Trail. Proposed improvements include the purchase of 3-5 homes in the area to remove the residential structures from this flood-prone area. The area where the buyouts occur will be used for stormwater routing and storage during rain events. The area where the homes previously existed will be regraded to provide designated areas for stormwater storage during rain events. The cost estimated by the City is $1 million.

U

Upper Fox McHenry Crystal Lake, City of Crystal Lake

The City of Crystal Lake has also proposed work along Crystal Creek to lower the BFE of Crystal Lake and reduce the flooding problems around the lake noted above. Specifically, the City would like to increase the culvert size under Lake Avenue to lower and stabilize the Crystal Lake BFE for an estimated cost of $150,000.

U

Upper Fox McHenry Crystal Lake, City of Crystal Lake

Increasing the culvert size under Country Club Rd would lower the 100-year floodplain along the creek and remove properties between Country Club Rd and Crystal Lake from the floodplain and floodway. This action could remove approximately 260 properties from the floodplain and over 40 properties from the floodway. The estimated cost is $150,000.

U

56

Watershed County Community Flood Risk Area Mitigation Project

Action Status Action Needed

Confirmed/ Unconfirmed

(C/U)

Action Taken

Upper Fox McHenry Crystal Lake, City of

Along the creek between the Crystal Lake and St. Andrews Lane

Many residential properties along the creek between Crystal Lake and St. Andrews Lane flood during large rain events. The parking lot of Crystal Lake Country Club and the middle school flood during large flow events as well. The City would like to construct stormwater storage areas to mitigate current flooding and account for the increase in peak discharge downstream due to the proposed enlarged culverts under Lake Avenue and Country Club Road. The estimated cost for these improvements is $675,000.

U

Upper Fox McHenry McHenry County

Unnamed Tributary to Nippersink Creek, north of Wonder Lake

There are significant discrepancies in topographic datasets in this area and throughout McHenry County. The current County GIS 2-ft contours dataset (from LiDAR) differs from the effective mapped Zone A boundaries and/or the BFEs for Zone AEs by 2-10 feet in many areas. The area north of Wonder Lake (Unnamed Tributary to Nippersink Creek) shows discrepancies of 6-10 feet between the current LiDAR-based contours and the effective mapping. New hydrologic and hydraulic studies and floodplain mapping are requested for many of these areas.

U

Upper Fox McHenry McHenry County

South Branch Slough Creek

A section of Woods Creek just upstream of the confluence with Crystal Creek does not have an SFHA designation. This section is riverine between Woods Creek Zone AE and connects downstream to Crystal Creek Zone AE. Numerous permit applications have been submitted in this area for existing developed areas, signaling a need for a new study in this area. New hydrologic and hydraulic study and floodplain remapping is requested.

C

Upper Fox McHenry

McHenry County, City of McHenry

Boone Creek

In addition to topographic discrepancies, many areas in McHenry County have experienced significant development and road construction/modification. New hydrologic and hydraulic studies are needed due to development (hydrology) and topography discrepancies and modified/new structures (hydraulics) for floodplain mapping. Boone Creek and Unnamed Tributary to Boone Creek near the City of McHenry are streams of concern with regard to these issues.

U

57

Watershed County Community Flood Risk Area Mitigation Project

Action Status Action Needed

Confirmed/ Unconfirmed

(C/U)

Action Taken

Upper Fox Kane Carpentersville

Carpenter Creek from Maple Ave to approximately 2000ft upstream of Maple Avenue (Zone A)

Carpentersville has already funded and replaced the restrictive culvert under Maple Avenue. The Village is also developing final engineering plans for improving channel conveyance and stabilizing the eroded stream banks. A LOMR will need to be completed along Carpenter Creek to map more accurate flood risk. The Village also applied for and received Section 319(h) funding for water quality improvements. The Village will use general funds for its local match. Additional improvements are needed along the creek between Spring Street and Fox River, including the replacement of the restrictive culvert under Washington Avenue. Total estimated cost for these mitigation actions is $2.7 million and approximately $1.1 million is funded through Section 319(h) and Village funds. Additional funding is needed for improving channel conveyance between Spring Street and Fox River, the Washington Avenue culvert replacement, and for a LOMR application.

U

Saline Williamson Williamson County

Unincorporated Williamson County Saline watershed area

Unincorporated Williamson County has ten overtopped road locations within the Saline River watershed. All locations are impassable and signed when they are overtopped. The current is quite swift. Most of these locations would require both drainage structure improvements and grade raises to eliminate overtopping.

U

Saline Saline Harrisburg

West Harrisburg / Small Street; N. Webster Street / N. Jackson Street

Flooding is a major problem in the West Harrisburg area. The area has recently flooded 3 times in 2008, 2011 and April 2013 affecting approximately 6 businesses and 40 residences. Mitigation projects include buyouts and improvements at the pumping station. The City currently has plans to build a second pumping station.

U

Saline Saline Galatia Gasaway Branch; Tributaries A and B

Flash flooding resulting in overland flow affects Utility Road in the northwest section of Galatia where the Village of Galatia sewer plant and utility yard is located. The utility barn at the sewer plant floods with up to 2 feet of water. The Village needs to relocate the utility barn and the community seeks mitigation funding for this project.

U

58

Watershed County Community Flood Risk Area Mitigation Project

Action Status Action Needed

Confirmed/ Unconfirmed

(C/U)

Action Taken

Saline Saline / Gallatin

Village of Equality, Gallatin County, Saline County

North Fork Saline River and Saline River

Installation of stream gages on the North Fork Saline River and main stem Saline River are needed for inundation mapping and warning purposes. One location is in the northeastern corner of Saline County where the North Fork Saline River and Hwy 1 intersect and the other location is south of the Village of Equality on Forrest Road where the Saline River intersects.

C

Saline Gallatin Ridgway Crawford Creek

Within Ridgway, a new study along Crawford Creek is needed to change the area from Zone A to Zone AE to help with floodplain management and various other flood risk issues. Creeks and ditches need cleaning for flood control. Crawford Creek has been recently cleaned by the Village. Two buyouts are pending.

U

Des Plaines Cook Wheeling Township

Feehanville Ditch and the area upstream of Des Plaines River Road

According to the Wheeling Township Highway Commissioner, repetitive loss buyouts for this area are the highest priority flood risk mitigation project in Wheeling Township. Feehanville Ditch is included in the Detailed Watershed Plan (DWP) for the Des Plaines watershed, prepared by the Metropolitan Water Reclamation District of Greater Chicago (MWRDGC). This study could support a benefit-cost analysis for buyouts and could correct the area where the reported roads that do not flood are shown as inundated by the 1 % annual chance flood.

C

Des Plaines Cook Mount Prospect McDonald Creek

Comments received during Discovery indicate several areas where homes, businesses, and roads regularly flood. Some of these flooded areas are repetitive loss flood damage areas. A study of McDonald Creek was performed by the MWRDGC as part of their DWP study of the Des Plaines watershed. The DWP study could be used to support a benefit-cost analysis for buyouts and may help determine proper mitigation actions in the area.

C

59

Watershed County Community Flood Risk Area Mitigation Project

Action Status Action Needed

Confirmed/ Unconfirmed

(C/U)

Action Taken

Des Plaines Cook Franklin Park Silver Creek

Buyouts of 33 homes. High concentration of LOMCs. Silver Creek channel improvement project to improve existing drainage by replacing an existing culvert and an existing trapezoidal channel. A study of Silver Creek was performed by MWRDGC as part of their DWP study of the Des Plaines watershed. BFEs from this study could support a benefit-cost analysis for buyouts and may help determine proper mitigation actions in the area.

C

Des Plaines Cook Maywood and Melrose Park Silver Creek

Buyouts or elevation of approximately 60 homes in the area that had first floor flooding during the April 2013 flood event. There are also several areas of erosion along the stream and undersized culverts that cause over-bank flooding during large storm events. A study of Silver Creek was performed by the MWRDGC as part of their DWP study of the Des Plaines watershed. BFEs from this study could help support a Benefit-Cost Analysis for buyouts and may facilitate the completion of mitigation projects in the area.

U

Des Plaines Cook Franklin Park, Schiller Park Crystal Creek

IDNR recently completed the Crystal Creek Phase 2B project, which enlarged Crystal Creek through Franklin Park and Schiller Park. The preliminary modeling prior to construction showed that nearly all of Crystal Creek’s floodplain within Franklin Park would be eliminated as a result of the project and over 300 parcels could be removed from the floodplain. Re-mapping of this area would remove these properties from the floodplain and more accurately reflect the risk and help the Village focus their mitigation efforts on the higher risk areas.

C

Des Plaines Will Crest Hill

Rock Run (1.77 mi); St. Francis Academy Creek (0.7 mi); St Anne School Tributary (0.8 mi)

Crest Hill submitted a comprehensive list of flooding issues, which includes overtopped roads, numerous homes that flood, and inaccurate floodplain maps. An updated hydrologic and hydraulic study is needed to determine the cause of flooding throughout the community.

U

60

Watershed County Community Flood Risk Area Mitigation Project

Action Status Action Needed

Confirmed/ Unconfirmed

(C/U)

Action Taken

Des Plaines Will Joliet Hickory and Spring Creeks

IDNR has been working on a mitigation project to provide an increased level of protection for people in the 100-year floodplain along Hickory Creek. Since a portion of the project has been constructed and is providing benefits to the community, the City may be interested in obtaining a LOMR prior to completion of the entire project. This could result in a removal of structures from the floodplain and floodway. An updated hydrologic and hydraulic study could be used to develop BFEs for this area to support a benefit-cost analysis for buyouts and may help determine proper mitigation actions in the area.

U

Des Plaines Will Will County DuPage River

Discovery comments confirm the unverified CNMS status of a reach of the DuPage River in Will County from approximately 9.7 miles from its confluence at the Des Plaines River to a point approximately 0.33 miles upstream of the bridge at Seil Road. Given the high-risk area, this should be considered for new study.

U

Des Plaines Lake Lake Zurich Buffalo Creek

Major flooding events occurred in this watershed in April 2013 and June 2013. Much of the flooding and damage has occurred in areas outside the mapped SFHA, indicating the effective studies are not accurate. Down-cutting and channel erosion on Buffalo Creek continues to worsen and expand. The Village is interested in a stream restoration project to fix the erosion problem and reduce flooding. An updated hydrologic and hydraulic study of Buffalo Creek for the 1.1-mile reach would support the Village’s continuing efforts to understand the flooding dynamics, pursue erosion mitigation, restore the channel, and manage the significant flooding problems in this watershed.

C

Des Plaines Lake Third Lake Mill Creek

Discovery comments indicate the dam controlling outflow from Third Lake needs replacement and an engineering analyses needs to be performed using the updated ISWS hydrologic and hydraulic study (March 2014) to determine the correct specifications for the new dam since it controls flows that affect flooding.

C

61

Watershed County Community Flood Risk Area Mitigation Project

Action Status Action Needed

Confirmed/ Unconfirmed

(C/U)

Action Taken

Little Wabash Effingham Effingham Community

Two homes and one business in the floodplain are opportunities for mitigation buyouts. An updated flood study is needed, for which the community has supporting technical data.

U

Little Wabash Clay Flora Old City of Flora

reservoir and dam

Log jams at the reservoir create flow restrictions. The dam safety study is decades old and dam safety issues may need to be taken into consideration.

U

Little Wabash Coles Mattoon Upland drainage

Upland drainage areas are experiencing ponding. The community is in the planning phase of drainage improvements with the Little Wabash Drainage District.

U

Little Wabash Coles Mattoon Lake Paradise Dam Mattoon is scheduled to begin significant repairs to the

concrete spillway of the dam. U

Little Wabash

Richland and Clay

Multiple overtopped roads during flood events

Five roads were identified, three that overtopped often and 2 that rarely overtop. Updated hydrologic and hydraulic studies would assist with preparing adequate future bridge replacement. Debris from farm fields and logging is clogging culverts. IDNR/OWR provided follow-up on regulatory rules and authorities to have debris removed.

U

Little Wabash Effingham Effingham Bridge crossing The bridge crossing west of Route 45 is hazardous as it

frequently overtops during rain events. U

Little Wabash Effingham Effingham Lake Sara

Effingham water authority requests an official BFE for Lake Sara and updated floodplain mapping to show accurate floodplain boundaries. Lack of accurate data is impacting local homeowners and floodplain management

U

Little Wabash Effingham Teutopolis Salt Creek Tributary

Current FIRM do not accurately show the flood hazard. The approximate engineered floodplain provided at the meeting show that development is occurring in “unidentified” flooding hazard areas. Detailed study data is needed to accurately show the flood hazard and assist with local floodplain management activities.

C

Little Wabash Wayne Fairfield Lakeside Park

Fairfield is subject to flooding due to the necessary breaching of a failing dam in 2007. The floodplain maps were not updated when the dam was breached. IDNR is completing a flood survey and updated floodplain mapping is needed. Several areas flood within the community.

U

62

Watershed County Community Flood Risk Area Mitigation Project

Action Status Action Needed

Confirmed/ Unconfirmed

(C/U)

Action Taken

Little Wabash Wayne Wayne and

Edwards Road overtopping and closures

Four locations were noted where flooding results in road closures and localized flooding. Updated flood hazard data is needed to provide necessary information for bridge and culvert design and floodplain management.

C

Little Wabash Wayne Unincorporated

areas Issues with farm structures causing localized flooding. C

Little Wabash White Carmi Backwater from

Little Wabash

Water backs up from the Little Wabash via a ditch and creates a flooding hazard through the City of Carmi and threatens a nursing home. Updated detailed study data would provide needed information to determine appropriate actions to reduce the flood risk.

C

Little Wabash Wayne Johnsonville

and Mt. Erie Tornado Concerns were expressed about adequate tornado sheltering. C

Little Wabash White Crossville Flooding in non-

SFHA Recurring flooding problems. IDNR/OWR has some study data. U

Little Wabash Multiple Dams

There are numerous dams in the watershed and there is concern about dam stability, capacity, and updates of hydrologic analyses.

U

*Narratives with additional supportive information and overview maps are available from the ISWS for most of the above summations.

63

Conclusion

The State of Illinois through the Illinois Department of Natural Resources and the Illinois State Water Survey wishes to continue to partner with FEMA through the CTP program. This business plan serves as a notice of interest for funding in FFY2018. It is important to continue the dialogue between the State and FEMA to identify projects that serve common interest and advance the reduction of flood risk in Illinois