minnesota division 380 jackson street · i-35w bridge over the minnesota river east of the existing...

380 Jackson Street Minnesota Division Cray Plaza, Suite 500

St. Paul, MN 55101-4802 April 11, 2018 651.291.6100

Fax 651.291.6000 www.fhwa.dot.gov/mndiv

Charles A. Zelle Commissioner of Transportation Department of Transportation MS 120, Transportation Building St. Paul, Minnesota 55155

Re: Finding of No Significant Impact Minnesota State Project Number 1981-124 I-35W Over the Minnesota River Project In the Cities of Bloomington and Burnsville Hennepin and Dakota Counties, Minnesota

Dear Mr. Zelle:

Enclosed is a Finding of No Significant Impact (FONSI) as requested by the Minnesota Department of Transportation (MnDOT). The proposed project consists of replacing the existing I-35W bridge over the Minnesota River east of the existing alignment, the I-35W bridges over West 106th Street, vehicle mobility issues, raising I-35W profile to address flood events, and bicycle/pedestrian connectivity. This Finding concludes that the project will not significantly impact the human environment.

A Notice of Availability of the FONSI must be sent to Federal, State, and local government agencies that are likely to have an interest in the undertaking and to the State intergovernmental review contacts. It is encouraged that agencies, which commented on the Environmental Assessment (or requested to be informed) are advised on the project decision, the disposition of their comments and provided a copy of the FONSI.

If you have any questions, please contact me at (651) 291-6110 or [email protected] .

Sincerely, PHILIP J FORST 2018.04.11 09:47:16 -05'00'

Philip Forst Environmental Specialist

Enclosure

mailto:[email protected]/mndiv

PJF

cc: 1 MnDOT, e-copy w/enclosure, [email protected] 1 MnDOT – e-copy w/enclosure, [email protected] 1 FHWA – e-copy w/enclosure, [email protected]

mailto:[email protected]:[email protected]:[email protected]

U.S. Department of Transportation

Federal Highway Administration

FINDING OF NO SIGNIFICANT IMPACT

AND SECTION 4(F) DETERMINATION

I-35W Over the Minnesota River

State Project Number 1981-124

Dakota and Hennepin Counties Cities of Burnsville and Bloomington, Minnesota

April 11, 2018

TABLE OF CONTENTS

BACKGROUND ............................................................................................................................ 1

STATEMENT OF PURPOSE AND NEED................................................................................... 1

ALTERNATIVES........................................................................................................................... 2

ALTERNATIVES ELIMINATED................................................................................................. 3

SELECTED ALTERNATIVE........................................................................................................ 5

ENVIRONMENTAL CONSEQUENCES AND MITIGATION................................................... 5

COMMENTS AND COORDINATION....................................................................................... 11

ENVIRONMENTAL COMMITMENTS..................................................................................... 12

FHWA CONCLUSION................................................................................................................ 16

The I-35W Over the Minnesota River Project Environmental Assessment/Environmental Assessment Worksheet (EA/EAW) was approved by the Federal Highway Administration (FHWA) on December 6, 2017. The entire document is available for review on the project website: https://www.dot.state.mn.us/metro/projects/i35wbloomington/.

I-35W Over the Minnesota River Project - Finding of No Significant Impact Page i

https://www.dot.state.mn.us/metro/projects/i35wbloomington

FEDERAL HIGHWAY ADMINISTRATION FINDING OF NO SIGNIFICANT IMPACT AND SECTION 4(F) DETERMINATION

I-35W Over the Minnesota River Dakota and Hennepin Counties

Cities of Burnsville and Bloomington, Minnesota April 11, 2018

BACKGROUND The Federal Highway Administration (FHWA) and the Minnesota Department of Transportation (MnDOT) prepared a combined Environmental Assessment (EA) and Environmental Assessment Worksheet (EAW) for the I-35W Over the Minnesota River Project in compliance with the National Environmental Policy Act (NEPA) (42 U.S.C. § 4231 et seq.) and Minnesota Environmental Policy Act processes (M.S. 116D).

MnDOT is the project sponsor and responsible governmental unit (RGU) for the I-35W Over the Minnesota River.

The project includes reconstructing I-35W between Cliff Road in Burnsville to West 106th in Bloomington. The existing I-35W bridge over the Minnesota River will be replaced essentially on existing alignment. Major features of the Preferred Alternative include:

x A steel girder bridge over the Minnesota River x Extending the existing I -35W northbound truck climbing lane from south of West 10th to

Cliff Road x Reconstructing of the I-35W bridges at the I-35W/West 106th Street interchange x Raising the vertical profile of I-35W (south of the Minnesota River Bridge) to reduce the

risk of roadway flooding

The project is being led by MnDOT Metro District.

STATEMENT OF PURPOSE AND NEED

Purpose The purpose of the I-35W Over the Minnesota River Project is address bridge condition at multiple locations, improve I-35W traffic operations and accommodate pedestrian and bicycle movements across the Minnesota River.

I-35W Over the Minnesota River Project - Finding of No Significant Impact Page 1

Need The identified needs for this project are summarized below. Project needs include:

To address the deteriorating condition of the bridge structures across the Minnesota River and at the I-35W/West 106th Street interchange

Maintain traffic to maximum extent possible during construction Address traffic operations on northbound I-35W Address bicycle and pedestrian movements across the Minnesota River Address roadway flooding

See Chapter 3 of the Environmental Assessment/Environmental Assessment Worksheet (EA/EAW) for the detailed discussion of project need.

ALTERNATIVES Chapter 4 of the EA/EAW describes the alternatives considered in greater detail. Figure I of this document provides an overview of the process. In addition to the No Build Alternative, Rehabilitation Alternative, and Build Alignment Alternatives, as shown in Table 1 and Bridge Type Alternatives as shown in Table 2, were considered for the project elements.

Due to bridge roadway, and non-motorized components, a four-step process (Figure I) was followed for evaluating the alternatives. Screening criteria were applied for the various elements of the project to better identify differences, benefits and impacts. If an alternative did not meet the defined purpose and need, it was eliminated from further study.

Each of the remaining alternatives was evaluated in the EA/EAW. The evaluation considered engineering and environmental factors. Engineering factors included constructability, service life, maintenance, and cost. Environmental factors considered included the impacts that would occur to biological resources, historic and cultural resources, as well as socioeconomic impacts, changes in noise and vibration levels, and impacts to wetlands and water quality.


Figure I: Overview of the NEPA Decision Process

Table 1 – Alternatives Considered for Analysis

Alignment Alternatives

Description Result of Evaluation

On Existing Crossing Alignment Eliminated On Shifted Alignment (shifted to east of existing bridge)

Selected Alternative

On Shifted Alignment (shifted to west of existing bridge)

Eliminated

No Build Alternative


No Build No construction addressing the existing bridge condition

Eliminated

ALTERNATIVES ELIMINATED Through the alternatives analysis process described in the EA/EAW, it was determined that some of the alternatives either did not fully address purpose and need, did not address purpose and need as well as other alternatives, and/or had greater social, economic, and environmental impacts. Therefore, they were eliminated.


Rehabilitation Alternative

This alternative was eliminated for the following reasons:

Construction cost similar to cost of a new bridge

No meaningful extension of existing bridge service life

Future expansion (widening) is precluded

On Existing Crossing Alignment

This alternative was dismissed for the following reasons:

I-35W alignment would be shifted closer to homes Black Dog interchange ramps anticipated to be pushed into wetlands and storm water treatment basin

On Shifted Alignment (shifted to west of existing bridge) This alternative was dismissed for the following reasons:

I-35W alignment would be shifted closer to homes Black Dog interchange ramps anticipated to be pushed into wetlands and storm water treatment basin

No-Build Alternative Under the No-Build Alternative, the bridge condition would not be addressed and there would be no modifications to address bridge condition. The No-Build Alternative was eliminated because it does not meet the project purpose and need.

Table 2: Bridge Type Alternatives

Bridge Type Alternatives


A Steel Plate Girder Available to Design-Builder B PC Spliced Concrete Beam Available to Design-Builder B1 Steel Box Girder Available to Design-Builder C Steel Delta Frame Available to Design-Builder D Concrete Segmental Dismissed E Steel Tied Arch Dismissed E1 Steel Truss Dismissed F Extradosed (Two Towers) Dismissed G Cable Stay (One Tower) Dismissed H Suspension Dismissed


Bridge type alternatives E through H were dismissed for reasons including cost, greater SEE impacts (e.g. flyway issues) as well as potential river navigation clearance issues. Alternatives A through C, inclusive, have lower overall SEE impacts, no known river navigation clearance issues, lower construction cost, and no above deck elements.

PREFERRED ALTERNATIVE The preferred alternative (shifted alignment to east of existing bridge) evaluated in the EA/EAW from the alternatives that are listed in Table 1 and the Bridge Type Alternative in Table 2. The On Shifted Alignment (shifted to east of existing bridge) is the alternative that best meets the purpose and need of the project. The preferred alternative assumed a steel plate girder type for purposes of impact assessment but the four bridges types in Table 2 will be available to potential design-build contractor in the bidding process.

The No-Build Alternative was evaluated as further described in the EA/EAW as a basis against which to compare the Build Alternatives in evaluation of environmental impacts, but was not identified as the selected alternative because it did not meet the project purpose and need.

Benefits of Selected Alternative The selected alternative provides three main benefits. First, it addresses the primary and secondary project needs. Second, it has an overall lower cost of construction. Third, it minimizes wetland impacts compared to the other alternatives.

Based upon the EA/EAW, included by reference with its appendices in this FONSI in its entirety, FHWA and MnDOT have concluded that the preferred alternative, including the mitigation measures for unavoidable impacts, will have no foreseeable significant impact on the quality of the natural and human environments. The preferred alternative is best able to achieve the proposed action purpose and need without significant environmental impacts.

ENVIRONMENTAL CONSEQUENCES AND MITIGATION The EA describes the existing conditions in the project area and the potential impacts and mitigation that would result if the selected alternative is implemented. Information was gathered from various sources, including site observations, maps, aerial photography, and local state and federal agency data.

The following environmental factors were analyzed and recorded for the portion of the selected alternative in the United States:


Land Use Water Resources (including Section 404) Contamination, Hazardous Materials, and Regulated Waste Fish, Wildlife, Plant Communities and Sensitive Ecological Resources Historic Resources Construction Noise and Dust Social Impacts Right of Way Noise and Vibration Section 4(f) Section 7 – Endangered Species

The following environmental factors were analyzed, and no impacts were recorded for the selected alternative:

Aesthetic/Visual Air Quality Airport Zones Environmental Justice Farmland/Agriculture Groundwater Section 106 Section 6(f) Wild and Scenic Rivers

Land Use

Floodplain: The 100-year floodplain of Minnesota River is within the project area. These floodplains are fairly well contained within the banks of the river within the project area. Approximately 56,600 cubic yards of fill will be placed in the Minnesota River floodplain.

A floodplain assessment has been completed. The bridge piers are not anticipated to create changes in the floodplain either upstream or downstream. Hydraulic models indicate a 0.01-foot decrease in the future flood stage based upon the proposed bridge.


Agency Finding: Based on the mitigation measures discussed in this section, FHWA finds the proposed project will not result in any significant impacts to land use including floodplains.

Water Resources Surface Waters: The build alternative will involve work in surface waters of the Minnesota River.

Stormwater Management: The project must comply with the National Pollutant Discharge Elimination System/State Disposal System Construction Stormwater (NPDES) Permit requirements. For the roadway portions of the project, rate control and infiltration volume will be provided for the net new impervious surface as required by the NPDES permit. The project will result in an increase in impervious of 0.9 acres. The roadway project proposes to construct seven best management practices (BMPs).

Wetlands and wet ditches: There will approximately 0.3 acres permanent wetland impacts and 0.16 acre of wet ditch impacts are attributed this project. Temporary wetland impacts are anticipated but are not quantified at this time.

Agency Finding: Due to the limited impact the proposed project will have on water resources, FHWA finds the proposed project will not result in significant impacts on water resources and will require mitigation within the regulatory thresholds for surface water including surface water, groundwater, stormwater, water appropriation, wetlands and wet ditches.

For waters under the jurisdiction of the USACE, the USACE and the MPCA have a joint application form. Permits from the USACE, including General Permits and Letters of Permission that may require mitigation commitments for MnDOT.

Contamination/Regulated Waste There is a low likelihood of encountering contaminated materials as a result of construction activities. Six known contaminated groundwater or soil were identified near the project area. Any potentially contaminated materials encountered during construction will be handled and treated in accordance with applicable state and federal regulations. It is not anticipated that construction work would release contaminated dust particles to the surrounding populace; however, minimization measures will avoid, control, and manage these efforts.

Agency Finding: FHWA finds the proposed project will result in the low likelihood of encountering contaminated materials. Since the wastes generated by construction of the proposed project will be disposed of


properly following completion of the proposed project and the construction impacts will be subject to mitigation, there will not be significant impacts associated with contamination and regular waste.

Fish, Wildlife, Plant Communities and Sensitive Ecological Resources The project area is in a riverine watercourse that contains many resident fish species. Any wildlife displaced would likely relocate to suitable nearby areas, including waters immediately adjacent to the project area. The areas limited to the waterway and banks in the construction limits.

MnDOT will undertake protection measures to include: design and stage the project to avoid or minimize impacts to fish and fish habitat.

Agency Finding: Due to the limited impact the proposed project will have on ecological resources, FHWA finds the project will not result in significant impacts on ecological systems and MnDOT will undertake recommended protection measures.

Historic Resources The project was reviewed by the MnDOT Cultural Resources Unit for potential effects to historic properties.

Agency Finding: FHWA finds the project will not impact any historic properties.

Construction Noise and Dust Construction related activities will result in temporary noise level increases associated with construction equipment and pile driving. Elevated noise levels are, to a degree, unavoidable for this type of project. MnDOT will require that construction equipment be properly muffled and in proper working order. MnDOT will require its contractors to comply with applicable local noise restrictions and ordinances to the extent that is reasonable.

Dust generated during construction will be minimized by MnDOT through standard dust control measures such as applying water to exposed soils and limiting the extent and duration of exposed soil conditions. Construction contractors will be required to control dust and other airborne particulates in accordance with MnDOT specifications in place at the time of project construction. During construction, particulate emissions will temporarily increase due to the generation of fugitive dust associated with activities such as grading and other soil disturbance. The following dust control measures will be considered:


Minimize the duration and extent of areas being exposed or regraded at any one time. Spray construction areas and haul roads with water, especially during periods of high

wind or high levels of construction activity. Minimize the use of vehicles on unpaved surfaces when feasible. Pave, apply water as needed, or apply (non-toxic) soil stabilizers on unpaved access

roads, parking areas and staging areas at construction sites. Use water sweepers to sweep paved access roads, parking areas and staging areas at

construction sites. Use water sweepers to sweep streets if visible soil material is carried onto adjacent public

streets. Hydroseed or apply (non-toxic) soil stabilizers to inactive construction areas Enclose, cover, water or apply (non-toxic) soil binders to exposed stockpiles (dirt, sand,

etc.). Utilize appropriate erosion control measures to reduce silt runoff to public roadways. Replant vegetation as quickly as possible to minimize erosion in disturbed areas. Use alternative fuels for construction equipment when feasible. Minimize equipment idling time. Maintain properly tuned equipment.

Agency Finding: FHWA finds that because the construction impacts will cease following completion of the proposed project and the construction impacts will be subject to mitigation, the proposed project will not result in significant impacts associated with construction.

Social Impacts Consideration of effects to the social and economic environment include: an assessment of the community characteristics and cohesion, protected groups of people, environmental justice, public facilities and services, changes in travel patterns, relocations of residences or businesses, economic impacts, land use, growth and economic development and changes to pedestrian or bicycle facilities.

No impacts were identified with regard to community characteristics and cohesion, protected groups of people, environmental justice, and public facilities and services.

Permanent negative changes in pedestrian and bicycle facilities are not anticipated as a result of the project. Temporary occupancy (23 CFR § 774.13(d)) during construction is expected and is discussed in the Section 4(f) Determination section within this document.

No businesses or residences will be relocated.


Agency Finding: FHWA finds the proposed project will provide a positive long-term social impact for residents and businesses.

Right of Way The project will not displace any residents or businesses. The City of Bloomington will deed two parcels to MnDOT for transportation purposes. The transportation purposes are the construction, operations, and maintenance of stormwater ponds and a bicycle/pedestrian trail.

Agency Finding: No relocations will be required. The Uniform Relocation and Real Property Acquisition Act of 1970, as amended by the Surface Transportation Uniform Relocation Assistance Act of 1987 and 49 CFR, Part 24, and effective April 1989 will be followed for the project by MnDOT, to compensate landowners for easements acquired for this project.

Noise and Vibration Traffic noise levels were modeled at representative receptor locations throughout the project area. In general, the analysis determined that construction of the project will result in increases in highway traffic noise levels compared to existing conditions. Changes in daytime traffic noise levels exceed applicable state or federal noise thresholds at over 70 receptor locations.

Agency Finding: FHWA finds the proposed project will result in noise impacts requiring consideration of noise abatement measures but not significant noise or vibration effects.

Section 4(f) Determination Section 4(f) of the U.S. Department of Transportation Act (DOT Act) of 1966 (49 U.S.C. 303) states that FHWA cannot approve the use of land from publicly owned parks, recreational areas, wildlife, and waterfowl refuges or public and private historic sites unless the following conditions apply: (1) there is no feasible and prudent alternative to the use of the property; and (2) the action includes all possible planning to minimize harm to the property resulting from use. Temporary occupancy of a Section 4(f) resource may not be considered a use if certain conditions are met: duration is temporary; no change in ownership of property; minor scope of work; no anticipated permanent adverse physical impacts; no interference with the activities or purpose of the resource; property will be fully restored to pre-project condition or better; and there is documented agreement from the Official With Jurisdiction (OWJ) over the resource (23 C.F.R. 774.13(d)).

Evaluation of the project has determined that although there are two Section 4(f) resources that would be impacted by all project build alternatives, the project does have unavoidable impacts to two Section 4(f) resources: The City of Bloomington Trail and the Minnesota State Water Trail.


These two Section 4(f) resources will be closed intermittently or continuously during construction. The activities, attributes, and features of these resources are not anticipated to experience permanent adverse physical impacts.

Agency Finding: For the reasons stated above, FHWA finds the proposed project will result in a temporary occupancy of the City of Bloomington Trail and the Minnesota State Water Trail.

Section 7 – Federal Threatened and Endangered Species As stated in the EA/EAW, MnDOT’s Office of Environmental Stewardship (OES), is FHWA’s designated representative to review Section 7 resources within Minnesota for federally-listed threatened species. There are four species with a range that includes the project location:

x Northern Long-Ear Bat (NLEB), (Myotis septentrionalis) x Higgens Eye pearlymussel x Rusty-patch bumble bee x Prairie bush clover x Snuffbox mussel

Agency Finding: FHWA finds the proposed project “may affect, likely to adversely affect” the northern long-eared bat. The MnDOT Wildlife Ecologist noted that the project will occur within the northern long-eared bat’s range, but there are no documented maternity roosts and/or hibernacula within the project area. No tree removals will occur within 0.25-mile of a known hibernaculum or within 150 feet from a maternity roost tree.

FHWA finds the proposed project will have “No Effect” on the Higgens Eye pearlymussel, rusty-patched bumble bee, prairie bush clover, or snuffbox mussel.

USFWS did not object the conclusion reached by MnDOT OES Wildlife Ecologist acting on behalf of FHWA.

COMMENTS AND COORDINATION During preparation of the EA/EAW, early coordination and consultation was initiated with agencies, stakeholder groups, and the public to incorporate their comments and concerns into the development and analysis of the project purpose and need, alternatives, and potential environmental impacts. Public coordination included stakeholder meetings, briefings, and presentations are detailed in the EA/EAW.


An open house and public hearing were held on the EA/EAW on January 11, 2018, from 4:30 pm to 6:30 pm at Oak Grove Middle School in Bloomington, MN.

Comments were received from local, state and federal agencies regarding the EA/EAW during the official public comment period.

The following is a summary of general comments received during the public comment period:

Clarifying edits Concerns about on bridge demolition methods Bridge lighting plan Potential impacts to transit operations

All comments received were considered, addressed and responded to by MnDOT.

ENVIRONMENTAL COMMITMENTS

Applicable Regulations and Permits The selected alternative was chosen after the potential impacts were evaluated, and the ability to mitigate impacts was considered. The following Federal regulations, statutes, and orders apply to the project:

Clean Water Act of 1977 (33 USC § 1251-1376) Endangered Species Act (50 CFR 17) Executive Order 11988, Floodplain Management (42 Federal Register 26951) Executive Order 11990, Protection of Wetland (42 Federal Register 26961) Executive Order 12898, Federal Actions to Address Environmental Justice in Minority

Populations and Low-Income Populations (59 Federal Register 7629) National Environmental Policy Act of 1969 (42 USC § 4231 et seq.) Regulations for Implementing the Procedural Provisions of the National Environmental

Policy Act (40 CFR 1500-1508) Section 4(f) of the U.S. Department of Transportation Act of 1966 (49 USC § 303) Section 6(f) of the Land and Water Conservation Act of 1965 (16 USC § 460) Section 106 of the National Historic Preservation Act, as amended (16 USC § 470) (54

U.S.C. § 306108) Section 404 of the Federal Water Pollution Control Act (33 USC § 1344) Uniform Relocation Assistance and Real Property Acquisition Policies Act of 1970, as

amended (42 USC § 61) Federal Highway Administration’s Procedures for Abatement of Highway Traffic Noise

and Construction Noise (23 CFR 772)

In addition to the federal regulations, statutes, and orders, the project is subject to agency approvals and permits.


Mitigation Mitigation describes any action taken to reduce the adverse effects of potential impacts. The order of precedence for dealing with impacts is listed below:

Avoiding the impact altogether by not taking a certain action or parts of an action Minimizing impacts by limiting the degree or magnitude of the action and its

implementation; rectifying the impact by repairing, rehabilitating, or restoring the affected environment

Reducing or eliminating the impact over time by preservation and maintenance operations during the life of the action

Compensating for adverse impacts by replacing or providing substitute resources or environments

The following sections describe the list of commitments to mitigation that are being committed to as part of this project. A more thorough listing of environmental commitments is an attachment to this FONSI.

Land Use

Floodplain: Mitigation includes 1:1 compensatory storage, as feasible. If 1:1 compensatory storage is determined not to be feasible during final design, then 1:1 compensatory storage will be implemented to the extent feasible and combined with a no-rise certificate supported by modeling information.

Water Resources Water appropriation: MnDOT will implement a dewatering plan, along with meeting all requirements included in the project SWPPP and NPDES Permit, during construction to ensure that the discharge does not adversely affect receiving waters and that the inlet and discharge points are adequately protected from erosion and scour.

Contamination/Regulated Waste MnDOT will require that any potentially contaminated materials encountered during construction will be handled and treated in accordance with applicable state and federal regulations. It is not anticipated that construction work would release contaminated dust particles to the surrounding populace; however, minimization measures will avoid, control, and manage these efforts.

MnDOT will dispose of all solid wastes generated by construction of the proposed project properly in a permitted, licensed solid waste facility.


If any contaminated spills or leaks occur during construction, MnDOT will require the contractor to notify the Duty Officer and work with the MPCA to contain and remediate contaminated soil/materials in accordance with state and federal standards.

Fish, Wildlife, Plant Communities and Sensitive Ecological Resources While impacts to sensitive species are not anticipated, MnDOT will implement the following protection measures:

Protect and preserve vegetation from damage in accordance with MnDOT Spec 2572.3. Construction operations that may impact the river bed will not occur during fish and

spawning migration periods (March 15th through June 15th) Use redundant sediment/erosion control BMPs for protection of areas of environmental

sensitivity.

Construction Noise and Dust To minimize construction noise disturbances, the following commitments have been made: MnDOT will require that construction equipment be properly muffled and in proper

working order. MnDOT will require its contractors to comply with applicable local noise restrictions and

ordinances to the extent that is reasonable.

MnDOT will ensure that construction contractors are required to control dust and other airborne particulates in accordance with MnDOT specifications in place at the time of project construction.

Right of Way The Uniform Relocation and Real Property Acquisition Act of 1970, as amended by the Surface Transportation Uniform Relocation Assistance Act of 1987 and 49 CFR, Part 24, and effective April 1989 will be followed by MnDOT for the project, to compensate landowners for property acquired for this project. For temporary impacts, MnDOT will ensure that land features will be returned to match their prior condition.

Section 4(f) Resources The City of Bloomington Trail and the Minnesota River State Water Trail will be returned to a state as good as or better than their pre-project condition.

Section 7 – Endangered Species MnDOT will ensure that the project includes minimization measures to prevent or reduce effects to the bat. Tree removal will not occur between June 1 and August 15th, inclusive, during calendar year 2018 in order to avoid possible impacts to the species. Any tree removal in post


calendar year 2018 will be only be allowed between November 1 and March 31st, inclusive. Further avoidance and minimization measures (AMM), as outlined in the March 16, 2018, United States Fish and Wildlife Service letter are also being incorporated into the project. A two-chambered Rocketbox bat house will also be placed on or near the project site per coordination with the MnDOT Wildlife Ecologist.


_________________________________ ________________________

FHWA CONCLUSION

FHWA finds the elements of the I-35W Over the Minnesota River Project which require FHWA funding and the environmental impacts caused thereby have been adequately identified and assessed in the January 2017 EA/EAW as prepared by MnDOT and FHWA. Therefore, pursuant to 23 CFR 771.121(c), FHWA hereby finds the I-35W Over the Minnesota River Project will not cause significant environmental impacts.

FHWA has determined the proposed action will not result in the use of any Section 4(f) resources.

The FHWA has determined the proposed improvements, as described in the Environmental Assessment (EA) will have no significant impacts to the human or natural environment. This Finding of No Significant Impact (FONSI) is based upon the attached EA which has been independently evaluated by FHWA and determined to adequately discuss the need, environmental issues, and impacts of the proposed project and appropriate mitigation measures.

The EA provides sufficient evidence and analysis for determining that an Environmental Impact Statement is not required.

-05'00'

WILLIAM R LOHR

2018.04.11 09:42:24

4/11/2018

William Lohr, P.E. Date Field Operations Team Leader Federal Highway Administration – Minnesota Division


http:2018.04.11

List

of C

omm

itm

ents

(Sta

ndar

d M

itig

atio

n M

easu

res)

Miti

gatio

n M

easu

re

MnD

OT

Stan

dard

S

peci

ficat

ion

Stat

us U

pdat

e D

escr

ipti

on

Stat

us U

pdat

e D

ate

Com

plet

ion

Dat

e Si

gned

Off

By

UUtil

ities

Prov

ide

early

not

ice

to

utili

ty o

pera

tors

and

fa

cilit

ate

coor

dina

tion.

25

45

WWat

er R

esou

rces

Eros

ion

cont

rol/

co

nstr

uctio

n B

MPs

. R

edun

dant

ero

sion

co

ntro

l mea

sure

s as

re

quire

d by

NPD

ES

Perm

it an

d D

NR

Pub

lic

Wat

ers

Wor

k Pe

rmit.

25

73

Turb

idity

con

trol

s du

ring

cons

truc

tion.

2

57

3

Tem

pora

ry a

nd

perm

anen

t sto

rmw

ater

B

MPs

.

17

17

Stor

mw

ater

co

nvey

ance

/tre

atm

ent

and

spill

con

tain

men

t pr

ovis

ions

.

25

03

Com

ply

with

NPD

ES

perm

it fo

r co

nstr

uctio

n ac

tivity

.

25

73

GGro

undw

ater

Seal

impa

cted

wel

ls

acco

rdin

g to

Min

neso

ta

Rul

e 4

72

5 (b

y a

licen

sed

wel

l co

ntra

ctor

).

21

04

I-35

W O

ver t

he M

inne

sota

Riv

er

Miti

gatio

n M

easu

re

MnD

OT

Stan

dard

S

peci

ficat

ion

Stat

us U

pdat

e D

escr

ipti

on

Stat

us U

pdat

e D

ate

Com

plet

ion

Dat

e Si

gned

Off

By

FFish

, Wild

life,

Pla

nt

CCom

mun

ities

, and

Se

nsiti

ve E

colo

gica

l R

esou

rces

Follo

w D

NR

’s B

est

Prac

tices

for

Mee

ting

Gen

eral

Pub

lic W

ater

s W

ork

Perm

it (G

P 2

00

4

00

01

). Su

bmit

final

co

nstr

uctio

n m

etho

ds

to D

NR

for

revi

ew a

nd

appr

oval

.

Not

app

licab

le

Noi

se

Follo

w s

tand

ard

MnD

OT

cons

truc

tion

nois

e pr

actic

es.

24

22

Vege

tatio

n

Re-

vege

tatio

n an

d st

abili

zatio

n of

di

stur

bed

area

s.

25

75

Air

Qua

lity

Impl

emen

t dus

t con

trol

B

MPs

. 2

13

0

Cont

amin

atio

n an

d HH

azar

dous

Mat

eria

ls

Han

dle

regu

late

d m

ater

ials

/was

tes

per

man

agem

ent p

lan,

sp

ecia

l pro

visi

ons,

and

M

nDO

T gu

idan

ce

docu

men

ts.

21

03

Dev

elop

pla

ns a

nd

spec

ial p

rovi

sion

s to

ha

ndle

and

trea

t any

co

ntam

inat

ed

mat

eria

ls e

ncou

nter

ed

Not

app

licab

le

I-35

W O

ver t

he M

inne

sota

Riv

er

Miti

gatio

n M

easu

re

MnD

OT

Stan

dard

S

peci

ficat

ion

Stat

us U

pdat

e D

escr

ipti

on

Stat

us U

pdat

e D

ate

Com

plet

ion

Dat

e Si

gned

Off

By

durin

g pr

ojec

t co

nstr

uctio

n.

Com

plet

e re

gula

ted

mat

eria

ls s

urve

y fo

r I-3

5W

brid

ges

over

W

est 1

06

th S

tree

t be

fore

the

star

t of

cons

truc

tion.

Not

app

licab

le

Rem

oval

and

dis

posa

l of

reg

ulat

ed m

ater

ials

. R

egul

ated

mat

eria

ls

man

aged

acc

ordi

ng to

2

10

4 o

f spe

cial

pr

ovis

ions

.

21

04

AAcce

ssib

ility

Des

ign

and

cons

truc

t al

l tra

il fa

cilit

ies

follo

win

g M

nDO

T ac

cess

ibili

ty g

uide

lines

.

Not

app

licab

le

I-35

W O

ver t

he M

inne

sota

Riv

er

List

of C

omm

itm

ents

(Pro

ject

-Spe

cific

Mit

igat

ion

Mea

sure

s)

Miti

gatio

n M

easu

re

Stat

us U

pdat

e D

escr

ipti

on

Stat

us U

pdat

e D

ate

Com

plet

ion

Dat

e Si

gned

Off

By

DDra

inag

e

Follo

w M

nDO

T Te

chni

cal

Mem

oran

dum

No.

11

-14

-B-0

5

(Sto

rm D

rain

Des

ign

Freq

uenc

y an

d Ca

tch

Bas

in S

paci

ng).

Res

tore

exi

stin

g st

orm

wat

er p

onds

un

der

I-35

W M

inne

sota

Riv

er

Brid

ge to

max

imiz

e de

sign

ca

paci

ty.

AAqua

tic R

esou

rces

Prep

are

cont

inge

ncy

plan

for

cont

rol o

f art

esia

n flo

ws

if en

coun

tere

d du

ring

cons

truc

tion.

Co

ntin

genc

y pl

an m

ust i

nclu

de a

ge

nera

l pro

cess

and

pro

cedu

res

for

seal

ing

and

stop

ping

(not

di

vert

ing)

art

esia

n flo

ws.

Impl

emen

t wet

land

min

imiz

atio

n m

easu

res:

x St

eepe

r in

slop

es (1

:4 o

r st

eepe

r).

x N

arro

w in

side

sho

ulde

rs a

nd

lane

wid

ths.

x R

etai

ning

wal

ls.

x Tr

ail a

lignm

ents

.

x Lo

cate

pre

trea

tmen

t pon

d an

d fil

trat

ion

basi

n in

upl

and

area

al

ong

Min

neso

ta R

iver

blu

ff.

Purc

hase

USA

CE a

ppro

ved

bank

cr

edits

. If c

redi

ts a

re n

ot a

vaila

ble

in th

e im

pact

Ban

k Se

rvic

e Ar

ea

(BSA

), cr

edits

from

ano

ther

BSA

w

ill b

e us

ed.

I-35

W O

ver t

he M

inne

sota

Riv

er

Miti

gatio

n M

easu

re

Stat

us U

pdat

e D

escr

ipti

on

Stat

us U

pdat

e D

ate

Com

plet

ion

Dat

e Si

gned

Off

By

Follo

w c

ondi

tions

set

fort

h in

w

etla

nd p

erm

its is

sued

by

USA

CE

and

WCA

LG

U.

FFish

, Wild

life,

Pla

nt C

omm

uniti

es,

aand

Sens

itive

Eco

logi

cal

Res

ourc

es

Follo

w c

ondi

tions

iden

tifie

d by

D

NR

for

limite

d W

ork

in W

ater

w

aive

r to

allo

w fo

r co

ntin

uous

w

ork.

x D

o no

t pla

ce s

ilt c

urta

in a

cros

s th

e w

ater

cour

se o

r in

suc

h a

way

that

it c

ould

trap

mig

ratin

g fis

h.

x En

sure

str

inge

nt c

onta

inm

ent

mea

sure

s to

pre

vent

deb

ris o

r ot

her

pollu

tant

s fr

om e

nter

ing

the

wat

er.

x Co

mpl

ete

eros

ion

cont

rol

mea

sure

s w

ithin

24

hour

s of

di

stur

banc

e fo

r al

l exp

osed

soi

ls

with

in 2

00

feet

of P

ublic

Wat

ers

and

drai

n to

thos

e w

ater

s.

x N

o w

ork

is a

llow

ed th

at c

ould

di

rect

ly h

arm

nea

rby

fish.

x Sh

eet p

ile in

stal

latio

n or

pile

dr

ivin

g sh

ould

be

avoi

ded.

If

nece

ssar

y, m

etho

ds s

houl

d be

re

view

ed w

ith D

NR

and

cho

sen

to m

inim

ize

soun

d/so

nic

impa

cts.

x An

y w

ork

that

cre

ates

in-w

ater

di

stur

banc

e sh

ould

be

stag

ed

to b

e co

mpl

eted

in a

s fe

w

cons

ecut

ive

days

as

poss

ible

.

x In

-wat

er w

ork

shal

l be

limite

d to

da

ylig

ht h

ours

.

I-35

W O

ver t

he M

inne

sota

Riv

er

Miti

gatio

n M

easu

re

Stat

us U

pdat

e D

escr

ipti

on

Stat

us U

pdat

e D

ate

Com

plet

ion

Dat

e Si

gned

Off

By

Not

ify D

NR

to c

oord

inat

e on

-site

m

onito

ring

of fi

sher

ies

impa

cts

if br

idge

pie

r lo

ad te

stin

g oc

curs

on

land

adj

acen

t to

Min

neso

ta R

iver

du

ring

wor

k ex

clus

ion

date

s (M

arch

15

to J

une

15

, inc

lusi

ve).

Prep

are

cont

inge

ncy

plan

to

ensu

re a

ll co

nstr

uctio

n eq

uipm

ent

and

unse

cure

d co

nstr

uctio

n m

ater

ials

are

sec

ured

, pro

tect

ed,

or r

emov

ed to

pre

vent

adv

erse

im

pact

s to

the

Min

neso

ta R

iver

du

e to

acc

iden

tal s

pills

, sto

rm

dam

age,

or

flood

wat

ers.

Sub

mit

cont

inge

ncy

plan

to D

NR

for

revi

ew.

Labe

l ide

ntifi

ed A

reas

of

Envi

ronm

enta

l Sen

sitiv

ity (A

ES) o

n al

l pro

ject

pla

ns.

Impl

emen

t mea

sure

s to

pro

tect

Are

as

of E

nviro

nmen

tal S

ensi

tivity

(AES

) ne

ar I-

35W

:

x La

bel i

dent

ified

AES

on

all p

lans

.

x N

o di

spos

al o

f exc

ess

mat

eria

ls

in A

ES.

x Pr

even

t sto

rmw

ater

runo

ff

durin

g co

nstr

uctio

n fr

om

reac

hing

AES

, inc

ludi

ng

inst

alla

tion

of r

edun

dant

er

osio

n co

ntro

l mea

sure

s.

x D

istu

rbed

soi

ls in

are

as th

at a

re

not p

ropo

sed

for

mow

ed tu

rf

gras

s w

ill b

e re

-veg

etat

ed u

sing

na

tive

seed

mix

es.

Prov

ide

the

DN

R’s

Bla

ndin

g’s

Turt

le

Fact

She

et to

all

cont

ract

ors

wor

king

on

site

.

Bla

ncha

rd’s

cric

ket f

rog.

Lim

it st

agin

g eq

uipm

ent a

nd m

ater

ials

I-35

W O

ver t

he M

inne

sota

Riv

er

Miti

gatio

n M

easu

re

Stat

us U

pdat

e D

escr

ipti

on

Stat

us U

pdat

e D

ate

Com

plet

ion

Dat

e Si

gned

Off

By

wes

t of t

he I-

35

W M

inne

sota

Riv

er

Brid

ge. R

evie

w d

ewat

erin

g pl

ans

with

DN

R n

onga

me

wild

life

staf

f an

d in

corp

orat

e re

stric

tion

date

s in

to th

e pr

ojec

t con

stru

ctio

n sc

hedu

le.

Surv

ey p

roje

ct a

rea

for

bald

eag

le

nest

s be

fore

sta

rt o

f con

stru

ctio

n.

Prot

ect a

ny n

ests

follo

win

g U

SFW

S re

com

men

datio

ns to

avo

id a

non

-pu

rpos

eful

take

of b

ald

eagl

es o

r th

eir

youn

g.

Insp

ect b

ridge

s fo

r ba

rn s

wal

low

an

d cl

iff s

wal

low

nes

ts b

efor

e st

art

of c

onst

ruct

ion.

Impl

emen

t st

anda

rd M

nDO

T pr

actic

es to

pr

even

t bird

s fr

om n

estin

g on

br

idge

s pr

ior

to s

tart

of

cons

truc

tion.

Ligh

ting

on I-

35

W, M

inne

sota

Riv

er

Brid

ge, a

nd e

ntry

mon

umen

ts s

hall

be d

irect

ed d

ownw

ards

tow

ards

th

e ro

ad a

nd b

ridge

dec

k. F

ollo

w

MnD

OT

light

ing

stan

dard

s. U

se fu

ll cu

toff

lum

inai

re li

ghtin

g he

ads.

Coor

dina

te w

ith th

e D

NR

to

iden

tify

com

pens

ator

y m

itiga

tion

for

mus

sel i

mpa

cts

(to

be

com

plet

ed a

s pa

rt o

f DN

R m

usse

l ta

king

s pe

rmit)

.

Des

ign

and

cons

truc

t wild

life

pass

age

benc

hes

unde

r I-3

5W

M

inne

sota

Riv

er b

ridge

follo

win

g M

nDO

T st

anda

rds

plan

s an

d D

NR

gu

idan

ce:

x So

uth

side

of t

he I-

35

W b

ridge

be

twee

n B

lack

Dog

Roa

d an

d M

inne

sota

Riv

er.

x N

orth

sid

e of

the

I-35

W b

ridge

be

twee

n th

e ab

utm

ent a

nd

I-35

W O

ver t

he M

inne

sota

Riv

er

Miti

gatio

n M

easu

re

Stat

us U

pdat

e D

escr

ipti

on

Stat

us U

pdat

e D

ate

Com

plet

ion

Dat

e Si

gned

Off

By

nort

h si

de o

f sto

rmw

ater

pon

d.

Rol

led

eros

ion

cont

rol p

rodu

cts

shal

l be

limite

d to

‘bio

-net

ting’

, ‘n

atur

al n

ettin

g’ (c

ateg

ory

3N

or

4N

) or

wov

en ty

pe p

rodu

cts.

W

elde

d pl

astic

mes

h ne

ttin

g sh

all

not b

e al

low

ed.

Rem

ove

or s

lice

expa

nsio

n jo

int

gask

ets/

gla

nds,

bet

wee

n N

ovem

ber

1, 2

01

8 a

nd M

arch

31

, 2

01

9, t

o in

crea

se a

irflo

w a

nd

moi

stur

e en

terin

g th

e ex

pans

ion

join

t to

redu

ce th

e lik

elih

ood

bats

w

ill u

se th

e br

idge

dur

ing

cons

truc

tion.

Tim

e of

yea

r re

stric

tions

for

tree

re

mov

al. T

ree

rem

oval

not

allo

wed

fr

om J

une

1 to

Aug

ust 1

5,

incl

usiv

e du

ring

cale

ndar

yea

r 2

01

8.

Any

post

-cal

enda

r ye

ar

20

18

tree

rem

oval

will

onl

y be

al

low

ed b

etw

een

Nov

embe

r 1

and

M

arch

31s

t , in

clus

ive.

Coor

dina

te w

ith th

e Ci

ty o

f B

loom

ingt

on o

r th

e U

SFW

S to

pl

ace

a si

ngle

Roc

ket B

ox B

at

Hou

se a

djac

ent t

o br

idge

st

ruct

ure.

Inst

all R

ocke

t Box

Bat

H

ouse

bet

wee

n Se

ptem

ber

1,

20

18

and

Apr

il 1

, 20

19

.

Ensu

re a

ll op

erat

ors,

em

ploy

ees,

an

d co

ntra

ctor

s w

orki

ng in

are

as

of k

now

n or

pre

sum

ed b

at h

abita

t ar

e aw

are

of a

ll FH

WA

envi

ronm

enta

l com

mitm

ents

, in

clud

ing

all a

pplic

able

avo

idan

ce

and

min

imiz

atio

n m

easu

res

(AM

Ms)

.

Use

bes

t man

agem

ent p

ract

ices

, se

cond

ary

cont

ainm

ent m

easu

res,

I-35

W O

ver t

he M

inne

sota

Riv

er

Miti

gatio

n M

easu

re

Stat

us U

pdat

e D

escr

ipti

on

Stat

us U

pdat

e D

ate

Com

plet

ion

Dat

e Si

gned

Off

By

or o

ther

sta

ndar

d sp

ill p

reve

ntio

n an

d co

unte

rmea

sure

s to

avo

id

impa

cts

to p

ossi

ble

bat

hibe

rnac

ula.

Whe

re p

ract

icab

le, a

3

00

-foot

buf

fer

will

be

empl

oyed

to

sepa

rate

fuel

ing

area

s an

d ot

her

maj

or c

onta

inm

ent r

isk

activ

ities

fr

om c

aves

, sin

khol

es, l

osin

g st

ream

s, a

nd s

prin

gs in

kar

st

topo

grap

hy.

Dire

ct te

mpo

rary

ligh

ting

away

fr

om s

uita

ble

bat h

abita

t dur

ing

the

activ

e se

ason

(Apr

il 1

to

Oct

ober

31

, inc

lusi

ve).

Des

ign

all p

hase

s/as

pect

s of

the

proj

ect t

o av

oid

tree

rem

oval

to th

e m

axim

um e

xten

t pra

ctic

able

.

Ensu

re tr

ee r

emov

al is

lim

ited

to

that

spe

cifie

d in

pro

ject

pla

ns.

Ensu

re th

at c

ontr

acto

rs

unde

rsta

nd c

lear

ing

limits

and

ho

w th

ey a

re m

arke

d in

the

field

(e

.g.,

inst

all b

right

col

ored

flag

ging

or

fenc

ing

prio

r to

any

tree

cle

arin

g to

ens

ure

cont

ract

ors

stay

with

in

clea

ring

limits

).

C Cont

amin

atio

n an

d H

azar

dous

MM

ater

ials

Com

plet

e a

met

hane

gas

sur

vey

with

in o

ne y

ear

of th

e be

ginn

ing

of

cons

truc

tion.

V Visu

al

Des

ign

and

cons

truc

t the

pro

ject

fo

llow

ing

the

reco

mm

enda

tions

an

d gu

idel

ines

iden

tifie

d in

the

Visu

al Q

ualit

y M

anua

l (VQ

M)

No

aest

hetic

ligh

ting

will

be

allo

wed

on

the

I-35

W M

inne

sota

R

iver

Brid

ge. E

ntry

mon

umen

t

I-35

W O

ver t

he M

inne

sota

Riv

er

Miti

gatio

n M

easu

re

Stat

us U

pdat

e D

escr

ipti

on

Stat

us U

pdat

e D

ate

Com

plet

ion

Dat

e Si

gned

Off

By

light

ing

shal

l be

focu

sed

dow

nwar

ds to

war

d th

e br

idge

de

ck.

I-35

W O

ver t

he M

inne

sota

Riv

er

Miti

gatio

n M

easu

re

Stat

us U

pdat

e D

escr

ipti

on

Stat

us U

pdat

e D

ate

Com

plet

ion

Dat

e Si

gned

Off

By

TTraf

fic N

oise

Cons

truc

t a 2

0-fo

ot ta

ll no

ise

wal

l in

nor

thea

st q

uadr

ant o

f the

I-3

5W

/Wes

t 10

6th

Str

eet

inte

rcha

nge.

MMin

neso

ta R

iver

Sta

te W

ater

Tra

il ((S

ectio

n 4

(f) R

esou

rce)

Post

sta

te w

ater

trai

l clo

sure

sig

ns

upst

ream

and

dow

nstr

eam

of

I-35

W M

inne

sota

Riv

er B

ridge

. Lo

catio

ns fo

r sig

ns to

be

dete

rmin

ed in

con

sulta

tion

with

D

NR

.

Prov

ide

date

s an

d du

ratio

ns o

f cl

osur

es to

DN

R fo

r po

stin

g on

M

inne

sota

Riv

er S

tate

Wat

er T

rail

web

page

.

Rem

ove

exis

ting

I-35

W M

inne

sota

R

iver

Brid

ge p

iers

from

the

wat

er

and

rest

ore

the

river

bot

tom

aft

er

pier

s ha

ve b

een

rem

oved

.

Rem

ove

all e

quip

men

t and

exc

ess

mat

eria

l/so

ils. R

esto

re M

inne

sota

R

iver

cha

nnel

and

adj

acen

t sh

orel

and

area

s be

fore

the

end

of

cons

truc

tion.

CCity

of B

loom

ingt

on T

rail

(Sec

tion

44(f

) RRes

ourc

e)

Ope

n Ci

ty o

f Blo

omin

gton

trai

l cr

ossi

ng u

nder

I-3

5W

Min

neso

ta

Riv

er B

ridge

prio

r to

the

end

of

cons

truc

tion.

Iden

tify

a tr

ail d

etou

r ro

ute

for

use

durin

g co

nstr

uctio

n.

Prov

ide

trai

l det

our

rout

e si

gnin

g du

ring

cons

truc

tion.

I-35

W O

ver t

he M

inne

sota

Riv

er

Miti

gatio

n M

easu

re

Stat

us U

pdat

e D

escr

ipti

on

Stat

us U

pdat

e D

ate

Com

plet

ion

Dat

e Si

gned

Off

By

Res

tore

trai

l cro

ssin

g un

der

I-35

W M

inne

sota

Riv

er B

ridge

to a

co

nditi

on a

t lea

st a

s go

od a

s th

e tr

ail c

ondi

tion

prio

r to

the

proj

ect.

RRus

sell

A. S

oren

son

Land

ing

((Sec

tion

4(f

) Res

ourc

e)

Mai

ntai

n ve

hicu

lar

acce

ss to

the

Rus

sell

A. S

oren

son

Land

ing

durin

g co

nstr

uctio

n.

Mai

ntai

n ac

cess

to th

e M

inne

sota

R

iver

at t

he R

usse

ll A.

Sor

enso

n La

ndin

g du

ring

cons

truc

tion.

MMin

neso

ta V

alle

y St

ate

Trai

l ((S

ectio

n 4

(f) R

esou

rce)

Acco

mm

odat

e th

e fu

ture

M

inne

sota

Val

ley

Stat

e Tr

ail

cros

sing

und

er th

e I-3

5W

M

inne

sota

Riv

er B

ridge

:

x M

aint

ain

the

caus

eway

alo

ng

the

nort

h sh

orel

ine

of th

e riv

er.

x M

aint

ain

the

exis

ting

caus

eway

pr

ofile

and

ele

vatio

n.

x Ac

com

mod

ate

a 2

0-fo

ot w

ide

grav

el a

cces

s ro

ad a

nd 1

0-fo

ot

wid

e tr

ail t

ypic

al s

ectio

n on

the

caus

eway

and

eas

t sid

e of

the

brid

ge, c

onne

ctin

g to

the

Rus

sell

A. S

oren

son

Land

ing.

CCultu

ral R

esou

rces

Inst

all f

enci

ng s

urro

undi

ng S

ite

21

HE4

97

bef

ore

cons

truc

tion

begi

ns to

avo

id a

ny im

pact

s to

the

site

.

Inst

all f

enci

ng a

long

the

right

of

way

lim

its n

orth

of t

he p

ropo

sed

pond

site

in B

loom

ingt

on. F

enci

ng

shal

l be

inst

alle

d be

fore

I-35

W O

ver t

he M

inne

sota

Riv

er

Miti

gatio

n M

easu

re

Stat

us U

pdat

e D

escr

ipti

on

Stat

us U

pdat

e D

ate

Com

plet

ion

Dat

e Si

gned

Off

By

cons

truc

tion

begi

ns to

pre

vent

any

im

pact

s to

a p

ossi

ble

mou

nd s

ite

nort

h of

the

cons

truc

tion

area

.

MnD

OT

CRU

sta

ff to

insp

ect

plac

emen

t of f

enci

ng p

rior

to th

e st

art o

f con

stru

ctio

n.

FFloo

dpla

ins

Des

ign

and

cons

truc

t ret

aini

ng

wal

ls a

long

I-3

5W

sou

th o

f the

M

inne

sota

Riv

er to

min

imiz

e flo

odpl

ain

fill.

TTraf

fic D

urin

g Co

nstr

uctio

n

Not

ify th

e U

SCG

, the

USA

CE, a

nd

loca

l bar

ge o

pera

tors

of t

empo

rary

di

srup

tions

to c

omm

erci

al ri

ver

traf

fic d

urin

g br

idge

con

stru

ctio

n.

The

I-35

W M

inne

sota

Riv

er

cros

sing

sha

ll re

mai

n op

en d

urin

g co

nstr

uctio

n.

Impl

emen

t mai

nten

ance

of t

raff

ic

crite

ria id

entif

ied

in T

rans

port

atio

n M

anag

emen

t Pla

n (T

MP)

.

Res

tric

tion

of I-

35

W to

five

lane

s du

ring

cons

truc

tion

will

be

allo

wed

. Dur

ing

the

perio

d fo

r th

e fiv

e-la

ne c

onfig

urat

ion,

two

gene

ral

purp

ose

lane

s w

ith a

rev

ersi

ble

MnP

ASS

lane

dur

ing

the

peak

pe

riod/

peak

dire

ctio

n sh

all b

e pr

ovid

ed.

Min

imiz

e du

ratio

n of

five

-lane

co

nfig

urat

ion

durin

g co

nstr

uctio

n.

Mon

itor

traf

fic o

n I-3

5W

, I-3

5E,

TH

13

, TH

77

, and

TH

16

9 w

hile

I-3

5W

is in

five

-lane

con

figur

atio

n.

Prov

ide

tem

pora

ry m

itiga

tion

mea

sure

s to

impr

ove

syst

em

I-35

W O

ver t

he M

inne

sota

Riv

er

Miti

gatio

n M

easu

re

Stat

us U

pdat

e D

escr

ipti

on

Stat

us U

pdat

e D

ate

Com

plet

ion

Dat

e Si

gned

Off

By

oper

atio

ns.

Rem

ove

tem

pora

ry s

trat

egie

s to

m

itiga

te th

e im

pact

s of

div

ertin

g tr

affic

onc

e I-3

5W

is r

etur

ned

to

the

six-

lane

con

ditio

n.

For

perio

d w

here

I-3

5W

is n

ot

rest

ricte

d to

five

lane

s, a

min

imum

of

six

lane

s sh

all b

e pr

ovid

ed. S

ix

lane

con

figur

atio

n w

ill p

rovi

de tw

o ge

nera

l pur

pose

lane

s an

d on

e M

nPAS

S la

ne in

eac

h di

rect

ion.

Mon

itor

syst

em o

pera

tions

whi

le

I-35

W is

in s

ix-la

ne c

onfig

urat

ion

and

impl

emen

t tem

pora

ry

impr

ovem

ents

bas

ed o

n vo

lum

e of

tr

affic

div

ertin

g fr

om I-

35

W.

Tem

pora

ry c

losu

re o

f ent

ranc

e ra

mp

from

Clif

f Roa

d to

no

rthb

ound

I-3

5W

and

exi

t ram

p fr

om s

outh

boun

d I-3

5W

to C

liff

Roa

d al

low

ed fo

r a

perio

d no

t to

exce

ed 9

0 d

ays.

Tem

pora

ry c

losu

re o

f ent

ranc

e ra

mp

from

Clif

f Roa

d to

no

rthb

ound

I-3

5W

not

allo

wed

un

til a

fter

Aug

ust 1

, 20

19.

Mai

ntai

n ac

cess

to I-

35

W a

t Bla

ck

Dog

Roa

d an

d W

est 1

06t

h St

reet

at

all

times

dur

ing

cons

truc

tion.

Prov

ide

tem

pora

ry d

etec

tion

at ½

-m

ile in

terv

als

thro

ugho

ut w

ork

zone

. Com

mun

icat

e tr

avel

tim

es

on p

erm

anen

t and

por

tabl

e m

essa

ge b

oard

s an

d m

anag

e M

nPAS

S la

ne p

ricin

g.

Mon

itor

I-35

W o

pera

tions

. Ext

end

MnP

ASS

lane

hou

rs o

f ope

ratio

n if

bene

ficia

l to

tran

sit,

HO

Vs, a

nd

I-35

W O

ver t

he M

inne

sota

Riv

er

Miti

gatio

n M

easu

re

Stat

us U

pdat

e D

escr

ipti

on

Stat

us U

pdat

e D

ate

Com

plet

ion

Dat

e Si

gned

Off

By

MnP

ASS

user

s.

Part

ner w

ith lo

cal u

nits

of

gove

rnm

ent a

nd tr

ansi

t pro

vide

rs

to m

arke

t the

I-3

5W

Ove

r th

e M

inne

sota

Riv

er P

roje

ct.

Com

plet

e ou

trea

ch w

ith a

ffec

ted

stak

ehol

ders

dur

ing

deve

lopm

ent

of m

aint

enan

ce o

f tra

ffic

pla

n (c

ities

, com

mut

ers,

loca

l bu

sine

sses

, em

erge

ncy

serv

ice

prov

ider

s, s

choo

ls, s

choo

l bus

se

rvic

es, t

rans

it pr

ovid

ers,

ne

ighb

orho

ods)

.

Coor

dina

te w

ith tr

ansi

t pro

vide

rs

durin

g co

nstr

uctio

n.

Prov

ide

publ

ic in

form

atio

n re

gard

ing

tran

sit r

oute

s,

sche

dule

s, d

elay

s, e

tc. d

urin

g co

nstr

uctio

n.

IIn--WW

ater

Pie

r R

emov

al

Prep

are

rem

oval

pla

n fo

r in-

wat

er

brid

ge p

iers

. Ide

ntify

all

prop

osed

m

etho

ds fo

r re

mov

al a

nd b

est

man

agem

ent p

ract

ices

to b

e im

plem

ente

d du

ring

rem

oval

. Su

bmit

rem

oval

pla

n to

MnD

OT

and

perm

ittin

g ag

enci

es fo

r re

view

an

d ap

prov

al p

rior

to th

e st

art o

f in

-wat

er p

ier r

emov

al a

ctiv

ities

.

Follo

w in

-wat

er p

ier r

emov

al

requ

irem

ents

:

x O

btai

n al

l req

uire

d pe

rmits

prio

r to

the

star

t of r

emov

al

oper

atio

ns in

the

Min

neso

ta

Riv

er.

x R

emov

e in

-wat

er b

ridge

pie

rs to

a

dept

h of

two

feet

bel

ow th

e M

inne

sota

Riv

er c

hann

el

bott

om.

I-35

W O

ver t

he M

inne

sota

Riv

er

Miti

gatio

n M

easu

re

Stat

us U

pdat

e D

escr

ipti

on

Stat

us U

pdat

e D

ate

Com

plet

ion

Dat

e Si

gned

Off

By

x Co

ntai

n al

l fug

itive

dus

t em

issi

ons

durin

g th

e pi

er

rem

oval

pro

cess

.

x N

o tu

rbid

and

/or

sedi

men

t la

den

wat

er s

hall

leav

e th

e pr

ojec

t lim

its.

x Pe

rfor

m tu

rbid

ity m

onito

ring,

bo

th u

pstr

eam

and

dow

nstr

eam

fr

om th

e re

mov

al s

ite, a

t lea

st

ever

y tw

o ho

urs

durin

g ac

tive

rem

oval

ope

ratio

ns. T

urbi

dity

m

onito

ring

shal

l ind

icat

e no

se

dim

ent b

eing

add

ed to

the

Min

neso

ta R

iver

as

a re

sult

of

rem

oval

ope

ratio

ns.

x Co

ntai

n an

d re

mov

e al

l rub

ble

and

debr

is.

x Al

l eff

orts

sha

ll be

mad

e to

m

inim

ize

nois

e im

pact

s.

x Pe

rfor

m s

ide

sona

r to

conf

irm

the

requ

ired

rem

oval

dep

th a

nd

indi

cate

any

obs

truc

tions

re

mai

ning

in th

e M

inne

sota

R

iver

cha

nnel

. Doc

umen

t and

pr

ovid

e th

is in

form

atio

n to

M

nDO

T.

I-35

W O

ver t

he M

inne

sota

Riv

er

Structure BookmarksFigureSincerely,Philip ForstEnvironmental SpecialistPHILIP J FORST 2018.04.11 09:47:16 -05'00'FigureFinding of No Significant Impact conclusion page signed by Federal Highway Administration - Minnesota Division, Field Operations Team Leader on April 11, 2018.

minnesota division 380 jackson street · i-35w bridge over the minnesota river east of the existing...

Documents