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Dane County (Town of Madison) 1 Multi-Hazard Mitigation Plan October 2009
Town of Madison Annex
Community Profile
The Town of Madison was once the largest Town in the Territory of Wisconsin with an area of almost 800 square miles. It encompassed more than half of Dane County from its western border to its eastern border. Now the Town of Madison, a mere remnant of its former self with an area of 1.48 square miles, lies on the southern edge of the City of Madison and northern edge of the City of Fitchburg. It is a geographically disconnected jurisdiction of approximately 6,000 people. The Town contains ample woodlands and open spaces. It also contains a mix of single family and multi-family housing as well as institutional, government, industrial, recreational, commercial and retail uses.
As of the 2000 Census, there were 7,005 people, 3,152 households, and 1,243 families residing in the Town of Madison. The population density was 2,238 people per square mile with a total area for the Town of Madison of 3.13 square miles. There were 3,466 housing units at an average density of 1,107.3 units per square mile.
NOTE: The municipality population distributed by the Wisconsin Department of Administration indicates that the 2008 population for the Town of Madison is 6,033 people, a decrease of 972 persons (-13.9%) due primarily to annexations to the City of Madison in July 2004 and December 2006. The 2008 population density is 4,049 people per square mile with a 2008 total area for the Town of Madison of 1.49 square miles. Subsequently, the last scheduled annexation to the City of Madison occurred July 6, 2009 reducing the Town’s population to approximately 5,817 people and total area to 1.48 square miles.
As of the 2000 Census, there were 3,152 households out of which 20.2% had children under the age of 18 living with them, 41.9% of all households were made up of individuals and 3.6% had someone living alone who is 65 years of age or older. The average household size was 2.14 and the average family size was 3.03. In the Town of Madison, the population was spread out with 18.7% under the age of 18, 22.7% from ages 18 to 24, 38.9% ages 25 to 44, 15.1% ages 45 to 64, and 4.6% who were 65 years of age or older. The median age was 27.8 years. 26.5% of the population spoke a language other than English at home and 21.9% of the population (above the age of 5) was disabled.
As of the 2000 Census, the median income for a household in the Town of Madison was $29,766 and the median income for a family was $37,518. The per capita income for the Town of Madison was $17,738. 23.8% of the population and 20.5% of families were below the poverty line. Out of the total people living in poverty, 35.2% were under the age of 18 and 5.4% were 65 or older. 78.1% of the population held at least a high school degree, while 28.4% of the population held at least a bachelor’s level degree.
Hazard Identification and Risk Assessment
A hazard identification and vulnerability analysis was completed for the Town of Madison using the same methodology in the base plan. The information to support the hazard identification and risk assessment for this Annex was collected through a Data Collection Guide, which was distributed to each participating municipality to complete.
Dane County (Town of Madison) 2 Multi-Hazard Mitigation Plan October 2009
The first step in a hazard analysis is to identify which hazards the community is vulnerable to. Table 1 outlines the hazard identification for the Town of Madison based on the Data Collection Guide issued in 2008. The Data Collection Guide listed all of the hazards that could impact anywhere in Dane County. The purpose of this worksheet was to identify and rank the hazards and vulnerabilities specific to the jurisdiction. The Town of Madison’s planning team members were asked to complete the matrix by ranking each category on a scale of 0 to 3 based on the experience and perspective of each planning team member. A ranking of 0 indicated “no concern” while a ranking of 3 indicated “highest concern”. This matrix appears as Table 1. This matrix reflects the significance of the hazards relative to one another.
This matrix reflects that the Town of Madison is most vulnerable to flood, and tornado. The Town of Madison has a medium vulnerability to dam failure, lightning, and winter storms, and a lower vulnerability to extreme heat and cold, drought, erosion, fog, hail storms, landslides, wildfire, windstorm, and subsidence. The vulnerability established here is a qualitative assumption based on the impacts, geographic extent, probability of future occurrence, and magnitude/severity. On the county level, these vulnerabilities were calculated with quantitative data as well.
Dane County (Town of Madison) 3 Multi-Hazard Mitigation Plan October 2009
Table 1 Vulnerability Assessment Matrix for the Town of Madison
Impact Attributes (0-1-2-3) Hazard Attributes (1-2-3) Primary Impact
(Short Term – Life and Property) Secondary Impact
(Long Term- Community Impacts) Hazard
Area of Impact
Past History, Probability of
Future Occurrence
Short Term Time
Factors
Impact on General
Structures
Impact on Critical
Facilities
Impact on At-Risk
Populations Social Impact
Economic Impact
Severity of other
associated secondary
hazards
Total
Dam failure 2 2 2 2 2 1 1 2 1 15
Extreme Cold 1 1 2 1 1 1 2 1 1 11
Extreme Heat 1 1 2 1 1 1 2 1 1 11
Drought 1 1 1 1 0 0 1 1 1 7
Erosion 1 1 1 1 1 0 1 1 1 8
Flood 3 3 3 3 2 2 3 2 2 23
Fog 1 1 1 0 0 0 1 0 1 5
Hail Storm 1 1 1 1 1 0 1 0 1 7
Landslide 1 1 1 1 0 0 1 1 1 7
Lightning 2 1 2 1 2 1 1 2 1 13
Tornado 3 2 3 3 3 2 3 2 2 23
Wildfire 1 1 1 1 1 1 1 1 1 9
Windstorm 1 1 1 1 1 1 1 1 1 9
Winter Storm 2 2 2 1 1 2 2 2 2 16
Subsidence 1 1 1 0 0 0 1 1 0 5
Other:
Source: Town of Madison
Dane County (Town of Madison) 4 Multi-Hazard Mitigation Plan October 2009
Previous Hazard Events
Through the Data Collection Guide, the Town of Madison noted specific historic hazard events to include in the community profile. These events have been incorporated into the appropriate hazard chapters in the base plan. These events had a particular impact on the community beyond the impacts and events recorded in the Dane County Hazard Mitigation Plan. This is not a comprehensive summary of past incidents, as the hazard profiles collected in the main Mitigation Plan include other events that may have historically impacted the jurisdiction. The events noted by this jurisdiction in the Data Collection Guide include:
Winter Storm: February 5-7, 2008
Record snowfall over a 48-hour period impacted the Town of Madison in February of 2008. No injuries, deaths, or damage were reported, though schools were closed. FEMA and the State of Wisconsin provided $2,718 of assistance for recovery efforts and Town costs. The Town feels the event is likely to occur again.
Severe Storms and Flooding: June 2008
Severe rains and flooding damaged public and private facilities in the Town. Private homes and businesses, roads, inlets, and parks were all damaged, though no crop damage was reported. No injuries or deaths were reported. The event forced temporary road closures. FEMA and the State of Wisconsin provided $25,633 of assistance for recovery efforts and Town costs. Private homes and businesses reported $150,000 in damages. The Town feels the event is likely to occur again.
Asset Inventory
Assets include the people, property, and critical facilities within the Town of Madison that are exposed to hazards in general. Inventories of property, essential infrastructure, and natural, cultural or historic resources help provide a comprehensive picture of the community and provide a method of assessing exposure to hazards by establishing the improved and total values, capacities and populations for these assets. It also forms the basis for estimating potential losses, where possible.
Population
Table 2 Vulnerable Population Summary
Disability Status from the 2000 Census Number Percent
Total Population ages 5 or less 482 3.9%
Total population ages 5 to 19 1,152 16.4%
Total population over 65 years old 324 4.6%
Total Population with any Disability 1,440 21.9%
Families Below Poverty Level 266 20.5%
Individuals Below Poverty Level 748 24%
Dane County (Town of Madison) 5 Multi-Hazard Mitigation Plan October 2009
Disability Status from the 2000 Census Number Percent
Total Population who Speak English less than “very well” 1,237 18.1%
Total Population 7,005 -Data Source: 2000 US Census
General Property
Table 3 Property Exposure Summary
Property Type Total Parcel Count
Improved Parcel Count
Improved Values ($) Contents ($) Total Value
($)
Residential 1,320 1,155 156,522,800 78,261,400 234,784,200 Other 19 4 680,100 340,050 1,020,150 Commercial Sales 108 70 56,697,000 56,697,000 113,394,000 Commercial Services 29 19 15,890,100 15,890,100 31,780,200 Transportation 17 1 141,400 70,700 212,100 Industrial 23 17 14,824,500 22,236,750 37,061,250 Institutional/Government (tax-exempt properties) 54 54 197,917,100 68,574,100 297,341,200
Utilities 10 4 1,730,500 2,595,750 4,326,250 Total* 1,580
(1,460 reported by State of
WI))
1,324 (1,310 reported by State of WI)
444,403,500 (251,788,900 reported by State of WI, does
not include tax-exempt properties)
244,665,850 689,069,350
Data Source: Dane County Land Information Office, December 2008; Tax-exempt property information supplied by the Town of Madison.
Critical Facilities
The Town of Madison has identified the critical facilities important to protect from disaster impacts. This is collected in Table 4, which is based on GIS data inventories from Dane County.
Table 4 Critical Facility Summary/Essential Infrastructures
Facility Type* No. of Facilities Replacement Value ($)
Communications Tower EI 4 3,901,900
Community Center VF 2 750,000
Correctional Center EI 2 2,892,000
Extremely Hazardous Substances HM 1 953,700
FCC Tower EI 3 3,091,000
Fire Department Garage EI 1 462,000
Food Pantry EI 1 3,300,000
Hazardous Chemicals HM 2 725,000
Manufactured Home VF 169 795,000
Public Works Department Facility EI 1 676,000
Dane County (Town of Madison) 6 Multi-Hazard Mitigation Plan October 2009
Facility Type* No. of Facilities Replacement Value ($)
Sanitary Sewer Lift Station EI 3 221,600
Town Hall/Fire Station/Police Station EI 1 2,063,000
TOTAL 189 18,332,500
*EI: Essential Infrastructure; VF: Vulnerable Facilities; HM: Hazardous Materials Facilities; NA: Natural Assets Data Source: Dane County GIS, Town of Madison
Other Assets
Other assets help define a community beyond the current composition of the Town of Madison. These assets may provide economic benefit to the community, in addition to preserving the heritage and diversity of the community and may include natural, cultural and historic assets or economic assets such as major employers. It may also include more specific detail on critical facilities. Other assets within the Town of Madison that are major employers or other community assets include: Dane County Alliant Energy Center Exhibition Hall/Coliseum and the Wisconsin Department of Revenue Building.
Vulnerability to Specific Hazards
This section details vulnerability to specific hazards, where quantifiable, and where it differs from that of the overall County. The previous inventory tables quantify what is exposed to the various hazards within the Town of Madison. Table 5 cross-references the hazards with the various tables where exposure or vulnerability specifics are found. The intent of Table 6 is to quantify, where possible, future impacts of each hazard on the jurisdiction. In many cases it is difficult to estimate potential losses, so the overall exposure of populations, structures, and critical facilities is referenced.
Table 5 Hazard Vulnerability Specifics
Hazard Populations Structures Critical Facilities Future Damage Potential
Dam Failure (Lake Forest Detention Pond Embankment)
51 homes in the 500-year flood zone would be affected by embankment failure
Residential
Dickson Place lift station See hazard profile in
County Plan
Drought Minimal None Minimal See hazard profile in County Plan
Flooding See section below See section below See section below See section below
Fog Minimal None None See hazard profile in County Plan
Hailstorm Minimal See Property Exposure table 3
See Critical Facility Inventory Table(s)
See hazard profile in County Plan
Landslide/ Sinkholes/ Erosion
Minimal Minimal Minimal See hazard profile in County Plan
Lightning See Table 2 Population
See Table 3 Property Exposure
See Critical Facility Inventory Table(s)
See hazard profile in County Plan
Dane County (Town of Madison) 7 Multi-Hazard Mitigation Plan October 2009
Hazard Populations Structures Critical Facilities Future Damage Potential
Severe Cold See Table 2 Population
See Table 3 Property Exposure
See Critical Facility Inventory Table(s)
See hazard profile in County Plan
Severe Heat See Table 2 Population None Minimal See hazard profile in
County Plan
Severe Winter Storm
See Table 2 Population
See Table 3 Property Exposure
See Critical Facility Inventory Table(s)
See hazard profile in County Plan
Tornado See Table 2 Population See section below See Critical Facility
Inventory Table(s) See section below
Wildfire Minimal Minimal Minimal See hazard profile in County Plan
Windstorm See Table 2 Population
See Table 3 Property Exposure
See Critical Facility Inventory Table(s)
See hazard profile in County Plan
Flood
Structures in the Floodplain
Some assets are specifically vulnerable to floods, due to their location. No structures were identified in the 100-year flood zone, however, 51 residential structures and one critical facility (Dickson Place lift station) were identified in the 500-year flood zone. Refer to the flood profile in the mitigation plan for a description of the methodology used to identify potentially flood-prone properties. The locations of properties within the floodplain are shown in Figure 1, in addition to flood hazard areas and planned land use.
Based on the average household size in Dane County and the count of residential parcels in the floodplain, approximately 0 people are potentially at risk to the 100-year flood and 124 additional to the 500-year flood within the jurisdiction.
Repetitive Loss Properties and Flood Insurance Polices
The Town has one repetitive loss structure. Other flood loss claims under the FEMA program have been in the six-block area located primarily along Frazer Place, Catlin Place, Dunn Place, Martin Street and Carver Street. Total damages per claim have ranged from $13,764 to $464.
Critical Facilities
There is one critical facility (Dickson Place lift station) within the 500-year flood zone in the Town of Madison.
Dane County (Town of Madison) 8 Multi-Hazard Mitigation Plan October 2009
Figure 1 Flood Hazards and Future Land Use Map
Dane County (Town of Madison) 9 Multi-Hazard Mitigation Plan October 2009
Figure 2 Flood Hazards and Critical Facilities Map
Dane County (Town of Madison) 10 Multi-Hazard Mitigation Plan October 2009
Tornado
While it is difficult to estimate specific losses to a tornado due to the random nature of the event, a methodology was developed that was applied to each jurisdiction during the 2009 update. The table below estimates the percent area of the jurisdiction that could be impacted based on the average sized tornado (F2) in Dane County. High value exposure is based on 100% loss, medium 50% loss, and low is 25% loss to the property potentially impacted. The loss ratio, which is the ratio of the damaged building value to total exposed building value, is a measure of the impact to the jurisdiction as a whole. Communities with loss ratios 10% or more may have difficulty recovering from a disaster. Refer to the tornado hazard profile in the main mitigation plan for more details on this methodology.
Table 7 Tornado Loss Estimate
% Area impact
Improved Parcel Count
Affected Structure Estimate
Total Exposed
Value
Estimated Loss $ (High
Damage Range)
Estimated Loss $
(Moderate Damage Range)
Estimated Loss $ (Low
Damage Range)
Loss Ratio for
Moderate Damage Range
56.49% 1,271 718 423,044,150 238,968,604 119,484,302 29,871,075 28.2% Data Source: Analysis Based on Dane County Land Information Office’s data
Growth and Development Trends
Planned land use is shown in Figure 1, in relation to the flood hazard. Table 8 illustrates how the Town of Madison has grown in terms of population and number of housing units between 2000 and 2008.
Table 8 Town of Madison Change in Population and Housing Units, 2000-2008
2000 Population 2008 Population
Percent Change (%) 2000-2008
2000 # of Housing Units
2008 # of Housing Units
Percent Change (%) 2000-2008
7,005 6,033 -2.1% 3,466 n/a n/a Data Source: Dane County Population Data
The reduction in Town of Madison population from 2000 to 2008 is due to annexations to the City of Madison in July 2004 and December 2006. The last scheduled annexation to the City of Madison on July 6, 2009 has further reduced the Town of Madison population to approximately 5,817 persons. The Town’s population should remain relatively constant until October 31, 2022, when the entire Town of Madison will be incorporated into the cities of Madison and Fitchburg by cooperative agreement.
Problems or Additional Vulnerability issues
Town of Madison residents have suffered through many natural hazard disasters since the Town was formed on April 8, 1846. These disasters have resulted in personal injuries and thousands of dollars in property losses. The following is a brief description of some of the major natural disasters based on town staff, public meetings and individual interviews:
Dane County (Town of Madison) 11 Multi-Hazard Mitigation Plan October 2009
1. FLOODS - The primary recurring natural disaster responsible for most of this damage has been flooding of residences and streets within the Town including shoulder, culvert, ditch, pavement and structural damage. Flooding has frequently occurred in two separate areas:
Lake Forest Subdivision - The majority of the flooding occurs within a six-block low-lying area called the Lake Forest Subdivision located between Martin Street and Carver Street. Six hundred forty-one (641) acres drains into this area from both the City of Madison and Fitchburg. The UW Arboretum bounds the subdivision on three sides.
Flooding, although it has occurred throughout the town’s history, has been exacerbated in the recent past by the rapid urbanization of the upstream watershed. In particular, several commercial developments have filled in low-lying marshy areas, which had provided natural flood protection to downstream residents.
In the summer of 1978, at least 15 homes suffered damage, primarily from basement flooding. During this flood, the stormwater overtopped Martin Street to a depth of six inches and flooding as deep as 18 inches was reported in other parts of the subdivision.
A flood control berm was constructed in 1981 to provide flood protection to the residents. However, in 1996, severe flooding occurred again in the area north of Martin Street. In the winter of 1998/99, the control berm was modified and reconstructed.
On December 2, 1997, the properties were removed from the floodplain on the FEMA Flood Insurance Rate Map. However structural flooding to approximately 25 homes occurred in 2000 and 2001. In 2000, the flooding was so severe that the subdivision was declared a federal disaster area.
Kingston Drive - A Town property located at 2802 Kingston Drive, just south of the West Beltline Highway also experiences flooding. This property floods from water backed-up from storm sewer pipes going under the Beltline. In 2000, a $9,800 FEMA claim ($7,500 in debris and $5,000 to structure) was awarded to this property owner due to flooding.
2. HIGH WINDS/TORNADOES/HAIL
Although the occurrence of these disasters is random and unpredictable, some vulnerable areas do exist within the Town. In particular, the Madison Mobile Home Park located off West Badger Road is prone to damages for this type of natural disaster.
3. LIGHTNING
Some electrical systems are sensitive to lightning strikes in the Town. The sanitary lift station at Dickson Place, which pumps sewage from the Lake Forest subdivision to Fish Hatchery Road is one system that is vulnerable, along with the Badger lift station on Nob Hill Road and the Mayflower lift station on S. Park Street that serve both the Town of Madison and the City of Madison.
Dane County (Town of Madison) 12 Multi-Hazard Mitigation Plan October 2009
4. FOG
Low-lying areas of the Town are subject to fog. Ski Lane and USH 14 are two low areas in the Town of Madison subject to fog.
Capability Assessment
Capabilities are the programs and policies currently in use to reduce hazard impacts or that could be used to implement hazard mitigation activities. This capabilities assessment summarizes regulatory mitigation capabilities, administrative and technical mitigation capabilities, and fiscal mitigation capabilities for the Town of Madison.
Mitigation Capabilities Summary
Table 10 lists planning and land management tools typically used by local jurisdictions to implement hazard mitigation activities, or by themselves contribute to reducing hazard losses. The table also indicates which of these tools are currently utilized in the Town of Madison.
Table 10 Town of Madison Regulatory Mitigation Capabilities
Regulatory Tool (ordinances, codes, plans) Yes/No Comments
General or Comprehensive plan Yes Dane County Also
Zoning ordinance No Dane County
Subdivision ordinance No Dane County
Growth management ordinance No
Floodplain ordinance No Dane County
Other special purpose ordinance (stormwater, steep slope, wildfire) No Dane County
Building code Yes Adopted State of Wisconsin Department of Commerce Residential and Commercial Building Codes
Fire department ISO rating Yes ISO rating - 4
Erosion or sediment control program No Dane County
Stormwater management program No Dane County
Site plan review requirements Yes Dane County Also
Capital improvements plan Yes Part of annual budget adoption
Economic development plan No
Local emergency operations plan Yes Town Fire Department
Flood insurance study or other engineering study for streams No
Elevation certificates (for floodplain development) No Dane County
Data Source: Dane County Data Collection Guides
Table 11 identifies the personnel responsible for mitigation and loss prevention activities as well as related data and systems in the Town of Madison.
Dane County (Town of Madison) 13 Multi-Hazard Mitigation Plan October 2009
Table 11 Responsible Personnel and Departments for the Town of Madison
Personnel Resources Yes/No Department/Position Comments
Planner/engineer with knowledge of land development/land management practices Yes Public Works Director
Engineer/professional trained in construction practices related to buildings and/or infrastructure
Yes Fire Dept/Building Inspector/Public Works Director
Planner/engineer/scientist with an understanding of natural hazards No Dane County
Personnel skilled in GIS No Dane County
Full-time Building Official Yes Fire Dept/Building Inspector
Floodplain Manager No Dane County
Emergency Manager Yes Fire Dept/Fire Chief
Grant Writer No
GIS Data Resources – (land use, building footprints, etc.) No Dane County
Warning systems/services (Reverse 9-11, cable override, outdoor warning signals) No Dane County
Data Source: Dane County Data Collection Guides
Table 12 identifies financial tools or resources that the Town of Madison could potentially use to help fund mitigation activities.
Table 12 Financial Resources for the Town of Madison
Financial Resources Accessible/Eligible to Use (Yes/No) Comments
Community Development Block Grants Yes Dane County CDBG Office
Capital improvements project funding Yes Town general fund
Authority to levy taxes for specific purposes Yes
Fees for water, sewer, gas, or electric services Yes Sewer, storm water only
Impact fees for new development No
Incur debt through general obligation bonds Yes Data Source: Dane County Data Collection Guides
Additional Capabilities
• Fire safety, household preparedness, environmental education through Fire Department • Fire inspections, ongoing twice a year • National Flood Insurance Program Participation
The Town of Madison does not participate in the National Flood Insurance Program as a stand-alone entity, but is covered by the County’s ordinance.
Dane County (Town of Madison) 14 Multi-Hazard Mitigation Plan October 2009
Public Involvement Activities
During the 2009 update, the community assisted with the public involvement activities referenced in the base plan. • April 9, 2009 – Town of Madison Plan Committee Agenda Item: Public Input on Natural
Hazards Mitigation Plan • April 14, 2009 – Public Workshop at Town of Madison Town Hall • May 13, 2009 - Town of Madison Plan Committee Agenda Item: Public Input on Natural
Hazards Mitigation Plan
Mitigation Actions
Objective 1: The Town will seek to minimize flooding damages within the Lake Forest Subdivision.
Steps:
1) Meet with City of Madison, City of Fitchburg, University of Wisconsin Arboretum and others to coordinate improvements within the watershed (8 hours)
2) Determine Revised 100-year Flood Flows (120 hours)
3) Survey Critical Elevations (berm, low point on houses, pipe inverts) (40 hours)
4) Determine extent of localized flooding (16 hours)
5) Develop Hydraulic Model of waterway (40 hours)
6) Develop Regional Flood Control Alternatives (80 hours) - These alternatives could include but are not limited to:
a) Dredge Lagoon
b) Flood-proof and elevate structures
c) Acquire structures
d) Increase and Extend Berm Height
e) Divert Stormwater along Fish Hatchery Road to the east
f) Increase detention areas upstream
g) Build a flood wall or dike
7) Evaluate Alternatives including economical, engineering and social parameters to both localized and regional flooding (120 hours)
8) Recommend Improvements (40 hours)
9) Final Public Meeting and Agency Meeting (8 hours)
Dane County (Town of Madison) 15 Multi-Hazard Mitigation Plan October 2009
10) Describe Permitting needs (8 hours)
11) Write Summary Report (if needed) (32 hours)
12) Prepare Plans and Specifications (if needed) (80 hours)
13) Obtain Funding (Unknown cost)
14) Implement Improvements (Unknown cost – some improvements have begun in 2009 with the reconstruction and enlargement of several wet detention basins in the University of Wisconsin Arboretum)
Lead Implementation Agency: Town of Madison Public Works
Supporting Agency:
• City of Madison Engineering • City of Fitchburg Engineering • WDNR • DCEM • University of Wisconsin Arboretum • Friends of Lake Wingra • FEMA • Wisconsin Emergency Management. • Dane County Public Works
Possible Funding and Technical Assistance:
• FEMA Pre-Disaster Mitigation Program • WDNR Municipal Flood Protection Program • Todd Drive Tax Incremental Finance district • Dane County Community Development Block Grant • Public Facilities Grants • City of Madison Stormwater Utility • City of Fitchburg Stormwater Utility
Time Line: The project should begin immediately after plan adoption.
Priority: High
Estimated Costs: 600 hours* $100/hr=$60,000* 1.25 safety factor=$75,000
2009 update: This project is ongoing. Construction has begun on enlarging a sediment pond that may create extra storage and mitigate downstream flooding in the Lake Forest subdivision. Many steps should remain at this time while future flooding is monitored.
Objective 2: The Town will seek to minimize flooding damages at 2802 Kingston Drive
Steps:
1) Maintain and keep storm inlet structure in rear yard of property free of obstructions.
Dane County (Town of Madison) 16 Multi-Hazard Mitigation Plan October 2009
2) Obtain pipe data for Beltline storm sewer pipes (size, slope, length, flows).
3) Hydraulic analysis of pipes.
4) Analyze and recommend improvements.
5) Obtain funding.
6) Implement improvements.
Lead Agency: Town of Madison Public Works
Supporting Agency:
• City of Madison Engineering • Wisconsin Department of Transportation • Dane County Highway Department
Time Line: One year after plan adoption.
Possible Funding and Technical Assistance:
• FEMA Pre-Disaster Mitigation Program • Town of Madison General Tax Fund • Wisconsin Department of Transportation
Priority: Medium
Estimated Costs: 40 hours* $100/hour* 1.25 safety factor=$5,000
2009 update: This project is not completed due to lack of funding.
Objective 3: The Town will seek to minimize equipment failure caused by power outages at critical public facilities during lightning storms.
Steps:
1) Identify vulnerable public facilities (such as Dickson Place, Badger Lane, and Mayflower sanitary lift station)
2) Partner with Madison Metropolitan Sewerage District (MMSD) to provide back up power generator at sanitary lift station facilities
Lead Agency: Town of Madison Public Works
Supporting Agency:
• Town of Madison Police and Fire • Madison Metropolitan Sewerage District (MMSD)
Possible Funding and Technical Assistance:
Dane County (Town of Madison) 17 Multi-Hazard Mitigation Plan October 2009
• Town of Madison Oakridge Sanitary District
Time Line: 1 year after plan adoption
Priority: Medium
Estimated Costs: Unknown
2009 update: This project is completed. Dickson Place lift station has been outfitted for connection to a portable power generator in the event of a power outage. As a backup, MMSD has agreed to pump out the wet well into a tanker and haul away to the sewer plant.
Objective 4: The Town will seek to minimize property damages caused by high winds, tornadoes and hailstorms.
Steps:
• Identify vulnerable areas • Investigate possibility of relocating overhead power lines to underground lines (already
partnering with Madison Gas & Electric to install underground electric in new development areas)
• Require tie-downs for trailers in trailer parks • Provide additional tornado shelters (owner has offered shelter for use by residents at
Madison Mobile Home Park)
Lead Agency: Town of Madison Public Works/Building Inspection
Supporting Agency:
• Town of Madison Police and Fire
Possible Funding and Technical Assistance:
• Town of Madison General Tax Fund
Time Line: 1 year after plan adoption
Priority: Medium
Estimated Costs: Unknown
2009 update: This project is partially completed. High voltage overhead power lines on E. Badger Road have been relocated underground. Researching ordinance revision and enforcement to require tie-downs on all mobile homes within the Town of Madison
Objective 5: The Town will seek to minimize vehicular accidents caused by poor visibility due to fog.
Steps:
Dane County (Town of Madison) 18 Multi-Hazard Mitigation Plan October 2009
1) Identify vulnerable low-lying areas
2) Place reflective strips on road
3) Place additional signs warning of fog
Lead Agency: Town of Madison Public Works
Supporting Agency:
• Town of Madison Police and Fire • Dane County Highway • Wisconsin Department of Transportation
Possible Funding and Technical Assistance:
• Wisconsin Department of Transportation
Time Line: One year after plan adoption
Priority: Low
Estimated Costs: Unknown
2009 update: This project is not completed at this time, but will contact WDOT to see if fog warning signs, lights, and/or other improvements can be added to highway project on US Highway 14.