Diagrams of alternatives to I-375 in Detroit

7/25/2019 Diagrams of alternatives to I-375 in Detroit

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ALTERNATIVE DIAGRAMSDiagrammatic Illustrations of Proposed Grade Changes and Connections

GRATIOT

I -75 INTERCHANGE

DETROIT RIVER

GREEN GREEN

CLINTON

LAFAYETTE

LARNED

FRANKLIN

ATWATER

EFFERSON

MACOMB

MONROE

DEVELOPMENTFREEWAY/BELOW-GRADE SURFACE ROADWAY

ALTER NAT IV E 1

COMMON FEATURES

Reconstructed mainline, service drives andbridges

Improvemen ts to southbound ramps toMonroe/Lafayette and Larned/East Jefferson (asproposed in previous MDOT studies)

Improvements at Gratiot /Madison/St. Antoineintersection

A riverfront connection from East Jeffersonto Atwater with bike lanes and pedestrianimprovements

Bike lanes along northbound and southboundservice drives

Landscaped freeway slopes with storm watermanagement

Pedestrian improvements along service drivesand on reconstructed bridges

No residual land created for potential reuse

Reconstructed mainline, service drives andbridges

Improvement s to southbound ramps atMonroe/Lafayette and Larned/East Jefferson (asproposed in previous MDOT studies)

ESTIMATED TOTAL COST: $60-70M

All alternatives were developed withconsideration of future peak traffic demands

Each alternative was developed with a CompleteStreets approach, balancing the needs of alltransportation modes

The new growth and development that isoccurring and planned to occur was integratedinto the plans

Designed to improve public safety, minimizeimpacts to environmental resources andenhance the economic vitality of the corridor

Reconstructed freeway shifted to the west(downtown side)

New retaining wall for service drive in order tonarrow freeway width

Improvemen ts to southbound off-ramp atMonroe/Lafayette

Freeway transitions to surface street at Larnedto eliminate the Jefferson curve and better servethe riverfront and south end of the corridor

New riverfront connection from Jefferson toAtwater with bike lanes and shared use path.

Northbound service drive converted to a two-way local street with bike lanes

Shared use (bike/walk) path with storm watermanagement between the new local street andthe freeway.

Pedestrian improvements along service drives,ramps and new at-grade streets

Potential property for reuse along the south sideof Jefferson Avenue (approximately 2 acres)

Freeway transitions to surface street at Clinton;reconstructed as a surface roadway southerly;Alignment shifted to the east (neighborhoodside)

Southbound service drive eliminated; function

replaced by new surface street

Riverfront connection from Jefferson Ave. toAtwater St. with shared use path

Pedestrian improvements along new boulevardstreets

Shared-use path along the east, neighborhoodside

Potential property for reuse along the west sideof the I-375 corridor and south side of JeffersonAvenue (approximately 9.3 acres)

Freeway transitions to a surface street at Clintonwhere it is reconstructed as a boulevard,replacing the southbound service drive;Alignment shifted to the west (downtown) side

Northbound service drive converted to a two-

way local street with bike lanes

Riverfront connection from East Jefferson toAtwater with bike lanes

Pedestrian improvements along new boulevard

Potential property for reuse along east side ofcorridor between boulevard and local street,and along the south side of East Jefferson(approximately 8.5 acres)

Freeway replaced with two one-way roadwaysbeginning at Clinton and shifted to the servicedrive alignments

Temporary or permanent conversion of below-grade space to multi-use trail

Riverfront connection from East Jefferson toAtwater with shared use path

Pedestrian improvements along new surfacestreet

Buffered bike lanes on one-way roadways

Potential property for reuse between thenorthbound and southbound roadways,and on the south side of Jefferson Avenue(apporoximately 11.6 acres)

ALTE RN ATI VE 2 ALTER NAT IV E 3 ALTER NAT IV E 4 ALTER NAT IV E 5 ALTE RN ATI VE 6

ESTIMATED TOTAL COST: $70-80M ESTIMATED TOTAL COST: $55-65M ESTIMATED TOTAL COST: $40-50M ESTIMATED TOTAL COST: $45-55M ESTIMATED TOTAL COST: $40-50M

I-375

ALT

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S

STUDY


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ESTIMATED TOTAL COSTESTIMATED VEHICULAR TRAVEL TIMES

ALTERNATIVE1(BASELINE)

AM =

Southbound from 1000north ofGratiot Avenueto E.Jefferson

PM =

Northbound from E.Jeffersonto 1000north ofGratiot Avenue

AM

PM

1.51.0

L T T I V

( L I )

PM

(1.5Minutes Total)

AM

(1.5Minutes Total)

* Estimated travel times arefor theyear 2040 LOW MED HIGH

$ $ $

$6070MECONOMIC IMPACT POTENTIAL

LEGEND

RECONSTRUCTEDPAVEDROADWAY

NEW /MODIFIEDPAVEDROADWAY

BRIDGES

RAISEDMEDIANS

PAVEDSHOULDERS

BIKELANE

0 100 ft 200 ft

FUTUREPLANNEDNON-MOTORIZEDFACILITY

(BIKELANEOR SHAREDUSE PATH )

EXISTING NON-MOTORIZEDFACILITY


E.JEFFERSONAVE

E.JEFFERSON

FRANKLINST

ATWATERST

WOODBRIDGE ST

E. LARNED ST

R IV

A R

D

S T

E.LAFAYETTEST

E.LAFAYETTEST

MONROEST

MACOMBST

CLINTONST

MULLETTST

GRATIOTA

VENU

E

ANTIETAMAVENUE

E.CONGRESSST

DETROITRIVERWALK

Widen off-ramp and realignlanes to better serve rightturn to Congress Street.

Reconstructed mainlinepavement

Widen off-ramp and modifyService Drive access to reduce

queuing onto southboundI-375.

Reconstruct bridge withtypical design features.

Reconstruct Service Drivepavement.

I-375 Corridor - Alternative 1Reconstructed Freeway As Is

KEY FEATURES

CROSS-SECTION

LOCATION

RENDERING OF PROPOSED CONDITIONS LOOKING NORTHWEST FROM DETROIT RIVER

CROSS-SECTION LOOKING NORTH SHOWING PROPOSED CONDITIONS PLAN VIEW SHOWING PROPOSED IMPROVEMENTS TO P RIMARY STUDY AREA

DETROIT RIVER

ATWATER

RIVARD

JEFFERSON

JEFFERSON

CENTRAL BUSINESS DISTRICT

DOWNTOWN EAST

RENAISSANCE CENTER DISTRICT

EVENT AREA MIXED USE DISTRICT

EAST RIVERFRONT DISTRICT

LOWER EAST

CENTRAL

DISTRICT

GRATIOT

ATWATER

VEHICULAR TRAFFIC OPERATIONS,

SAFETY AND CONNECTIVITY

QUALITY OF LIFE AND

ENVIRONMENTAL RESOURCES

Improvementsto southbound off-rampoperationsand safety

Minimalchangesto trafficoperationsortraveltime

No changesinconnectivity

No additionalsafety improvementsto identified issueswithinthe study area

NONMOTORIZED

TRANSPORTATION AND TRANSIT

No changesto non-motorized travel

No changesto transit accessibility

COST AND

ECONOMIC IMPACT

Minimalpositive impact dueto replacementinfrastructureand modest improvementsin traffic

flow at ramps

Highlong-termoperations and maintenancecosts

dueto continued presenceofbridges (over60,000squarefeet ofbridge area), pumpstation and

related infrastructure

No changesto quality oflife inadjacent districts

No changesto waterquality

No changesto thenon-motorized experience

and thecharacterof adjacent districts

No anticipated changesin airquality ornoise

impacts

RenaissanceCenter

DetroitRiverWalk

RivardPlaza

NONMOTORIZEDSHARED USE PATHS/BIKE LANES

PEDESTRIAN SIDEWALKS

30

55

30

55

35

MONROE /LAFAYETTE RAMP

LARNED / EASTJEFFERSON RAMP

PEDESTRIANS IDEWALKS

On-Street BikeLanes

Shared-UsePaths

Adjacent to Low Speed Roadways

Adjacent to Low VolumeRoadways

New Connections/Access

N

O

N

E

Adjacent to Existing/Potential Mixed Land Use

Adjacent to At-grade,Low Speed Roadways


Short Intersection /Road CrossingLengths

LandscapeBuffers /Physical Separation from

Roadway

N

O

N

E


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ALTERNATIVE 1 FEEDBACK//TELL US WHAT YOU THINK!

ALTERNATIVE FEATURES NEGATIVE NEUTRAL POSITIVE

Need help or have

questions?Please let someone at the

station know and they will

be happy to assist you.

INSTRUCTIONS:Place a dot sticker in the

appropriate box below to share

your opinion on each of the

alternative features.

Overall

Maintaining I-375 as asubsurface freeway toallow high-speed access todowntown

Modifying two southboundramps to improve operationsand increase storage (i.e.queuing) capacity

Large, landscapedembankments along thefreeway

West Jefferson curve remainsas existing


4/13

ALT

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2

0

0

LEGEND


EXISTING PAVEDROADWAY


BRIDGES

RAISEDMEDIANS

PAVEDSHOULDERS

POTENTIALPROPERTYDEVELOPMENT

1 00 f t 2 00 f t

BIKELANE





SHARED-USEPATH

E.JEFFERSONAVE

E.JEFFERSON

FRANKLINST

ATWATERST

WOODBRIDGE ST

E. LARNED ST

R IV

A R

D

S T

E.LAFAYETTEST

E.LAFAYETTEST

MONROEST

MACOMBST

CLINTONST

MULLETTST

GRATIOTA

VENU

E

ANTIETAMAVENUE

E.CONGRESSST

TO RUSSEL ST. AND

EASTERN MARKET

DETROITRIVERWALK

Add bike lanes to ServiceDrives

Northbound traffic must

make a right turn and thenimmediate left to access I-375

New riverfront connectorroadway from East Jeffersonto Atwater Street with

bike lanes and pedestrianimprovements.

Create pedestrian crossingacross bridge to connectto riverfront and River East

Properties.

Heavier traffic volumes onsouthbound Service Drive

to access new riverfrontconnection

Widen off-ramp and realignlanes to better serve rightturn to Congress Street.

Reconstructed mainlinepavement



Improve crossingexperience with greater

pedestrian amenitieson bridge structures.(Typical all bridges)

Reconstruct Service Drivepavement and improve the

Pedestrian Conditions onService Drives with StreetTrees & Lighting.

Reconstructed bridgeswith enhanced pedestrianexperience at intersections to

encourage pedestrian travel.(Typical All Bridges)

Landscape plantings andstormwater managementbetween freeway lanes &Service Drive

I-375 Corridor - Alternative 2Reconstructed Freeway with Riverfront Connection

KEY FEATURES

CROSS-SECTION

LOCATION


CROSS-SECTION LOOKING NORTH SHOWING PROPOSED CONDITIONSPLAN VIEW SHOWING PROPOSED IMPROVEMENTS TO P RIMARY STUDY AREA

DETROIT RIVER

ATWATER

RIVARD

JEFFERSON

JEFFERSON


DOWNTOWN EAST




LOWER EAST

CENTRAL

DISTRICT

GRATIOT

ATWATER

Intersection improvements toallow direct access betweenMadison ramps and Gratiot .



QUALITY OF LIFE AND


Improvementsto

southbound off-rampoperationsand safety

Improved connectivity

to riverfront via new

roadway fromEastJefferson

Greatertrafficvolumes

onEast Jefferson/I-375

servicedrive intersectionsto servenew riverfront

connection

GreaterconnectivitybetweenI-75 and Gratiot via Madison

ramps

No changesto east/west

connectivity

No additionalsafetyimprovementsto issues

identified withinthe studyarea

No changesto complicated

geometry at I-375 southboundservicedrive/East Jefferson

signalized intersections

NONMOTORIZED


Pedestrianenvironmentalong servicedrives

enhanced throughbike

lanesand streetscape

New East JeffersonAve.pedestriancrossing at

theI-375 corridorwould

bechallenged by hightrafficvolumes, turning

movementsand long

crossing distances

Improved north/south

bikeconnectionsbetweentheriverfront and Eastern

Market

Improved accessto existing

transit routes(Gratiot,Lafayetteand East Jefferson)

withdefined bikeroute

Non-motorized experience

would continueto beimpacted by highvehicle

speedswithin thecorridor

COST AND

ECONOMIC IMPACT

Improved accessto RiverEastdevelopment areas

Minimalpositiveeconomicimpact

withinor adjacent to thecorridordue to

limited infrastructurechanges and nocreationof residualland

Highlong-termoperationsand

maintenancecostsdue to continuedpresenceofbridges (over60,000 square

feet ofbridgearea), pumpstation, and

additionalstreetscapeelements.

Minimalchange

to qualityoflifeinadjacent districts

Stormwater

management protects

Detroit Riverasset

Displacement of someprivateproperties

(surfaceparking

facilitiesand abillboard) dueto the

riverfront connection

RenaissanceCenter

DetroitRiverWalk

RivardPlaza

NONMOTORIZED SHARED USE PATHS/BIKE LANESESTIMATED TOTAL COST

30

55

30

55

35

50

MONROE /LAFAYETTE RAMP

LARNED / EASTJEFFERSON RAMP

No expected

changesinairquality ornoise

impacts, but further

investigationmight beneeded

dueto additional

exiting trafficfornew riverfront

connection

ESTIMATED VEHICULAR TRAVEL TIMES


ON-STREET BIKELANES

On-Street BikeLanes

Shared-UsePaths




PEDESTRIAN SIDEWALKSAdjacent to Existing/Potential Mixed Land Use




LandscapeBuffers /Physical Separation from

Roadway

N

O

N

E

AM =


PM =

Northbound from E.Jeffersonto 1000north of Gratiot Avenue

AM

PM

1.5

1.0

0.5

L T T I V L I L T TI V I C

PM

(1.5Minutes Total)

AM

(1.5Minutes Total)

.

.

.

ALTERNATIVE1B AS EL IN E L E I E I E E

.

.

.

L E I E E L I E A L T E RN A T IVE2INCREASE

* Estimated travel times arefor theyear 2040 LOW MED HIGH

$ $ $

$7080MECONOMIC IMPACT POTENTIAL


5/13



Need help or have








Maintaining I-375 as a subsurfacefreeway to allow high-speed accessto downtown

Modifying southbound ramps toimprove operations and increasestorage capacity

Creating new riverfront connectionfrom East Jefferson (secondarymovement, requires exitingfreeway)

Addition of bike lanes along ServiceDrives

ALT

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Overall


6/13

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3

FRANKLIN ST

ATWATERST

WOODBRIDGE ST

MONROEST

MACOMBST

CLINTONST

MULLETTST

GRATIOTA

VENU

E

DETROITRIVERWALK

0

0

LEGEND




BRIDGES

RAISEDMEDIANS

PAVEDSHOULDERS


1 00 f t 2 00 f t

BIKELANE





SHARED-USEPATH

E.JEFFERSONAVE

E.JEFFERSONAVE

E. LARNED ST

R I V

A R D

S T

E.LAFAYETTEST

E.LAFAYETTEST

E.CONGRESSST

ANTIETAM AVENUE

TORUSSELS T.AND

EASTERNMARKET

Relocate northbound on-rampto eliminate freeway-boundtraffic on new local roadway

New riverfront connector

roadway from East Jeffersonto Atwater Street alongSchwizer alignment. Includesbike lanes and pedestrian

improvements.

New signalized intersection

at Larned & Congress

Improve the pedestrianconditions along surface

streets with sidewalks,landscaping, & Lighting.

Convert northbound Service

Drive to two-way localroadway with bike lanes



Reconstruct freeway shifted

to the west (Downtown Side)

Reconstructed bridgeswith enhanced pedestrian

experience at intersections,narrowed bridge, and greaterpedestrian amenities toencourage pedestrian travel.(Typical All Bridges)

Shared-use path withstormwater managementbetween local street andfreeway

I-375 Corridor - Alternative 3Freeway Transitions to Surface Street at Larned

KEY FEATURES

CROSS-SECTION

LOCATION


CROSS-SECTION LOOKING NORTH SHOWING PROPOSED CONDITIONSPLAN VIEW SHOWING PROPOSED IMPROVEMENTS TO P RIMARY STUDY AREA

DETROIT RIVER

ATWATER

RIVARD

JEFFERSON

JEFFERSON


DOWNTOWN EAST




LOWER EAST

CENTRAL

DISTRICT

GRATIOT

ATWATER




QUALITY OF LIFE AND


Improved southbound off-

rampoperations and safety

at Monroe/Lafayette

Improved, direct

connectivity to riverfront

and East Jeffersoncorridor

Replacessharpcurveat

Jeffersonwith at-grade

signalized intersection, with

indirect left turns(Michigan

left) forsouthbound and

westbound left turns

Improvesexisting issueswith

southbound right-turnto

Congress

No southbound left-turn

allowed onto eastbound

Larned; movement canbe

madeat Lafayetteand East

Jefferson

Greaterconnectivity between

I-75 and Gratiot via Madison

ramps


NONMOTORIZED

TRANSPORTATION AND TRANSIT Moderateenhancement to

pedestrianenvironment

withmore at gradestreets,

landscapeimprovements

and shorterstreet crossing

distances

Fewerbarriersto crossing

East Jeffersonbetween

Beaubienand Rivard

Vehicle-oriented

southbound servicedrive

and existing adjacent

land useimpedes the

development ofan active

pedestrianfriendly street

edge

Strong north/south

bikeway connectionvia

shared usepathand bike

lanes.

Improved accessto

existing transit routes

(Gratiot, Lafayetteand

Jefferson) withdefined

bikeroute

COST AND

ECONOMIC IMPACT Improved accessto

RiverEast development

areas, served asa primary

movement (without

requiring freeway exit)

Potentialpositiveimpact

onadjacent property

valuesalong theeast edge

ofthecorridordueto

conversionofnorthbound

servicedrive to local

roadway, additionof a

greenway and shared use

path

New non-motorized facilities

and greenway allow buffer

fromfreewayand more

balanced multi-modaluse of

corridoralong east edge

Minimalchangeto qualityof

lifealong west edge

Stormwatermanagement

protectsDetroit Riverasset

Reduced vehicledesign

speedsimprove non-

motorized experienceand

adjacent districtscharacter

RenaissanceCenter

DetroitRiverWalk

RivardPlaza

NONMOTORIZED SHARED USE PATHS/BIKE LANES PEDESTRIAN EXPERIENCEESTIMATED TOTAL COST:

ECONOMIC IMPACT POTENTIAL:

30

55

30

30

55

30

New retaining wall for servicedrive to narrow freewaywidth.

Freeway transitions to street

grade between Lafayette andLarned

New signalized intersectionat Jefferson eliminates theEast Jefferson Curve

Potential property available

for reuse

Someresidual

land forpotential

redevelopment along

East Jefferson

Moderateoperations

and maintenance

costsdue to continued

presenceof bridges

(approximately17,000

squarefeet ofbridge

area), new retaining

walls, pumpstation,

and new greenway

space.

Displacement ofsome

privateproperties (surface

parking facilities) dueto


No expected changesinair

quality ornoiseimpacts, but

furtherinvestigation might

beneeded dueto transition

to surfacestreet at Larned

On-Street BikeLanes

Shared-UsePaths




*Buffered


ON-STREET BIKELANES

SHARED-USEPATH

AM =


PM =


AM

PM

1.5

1.0

0.5

0.5


PM

(1.5Minutes Total)

AM

(2Minutes Total)

.

.

.

.


.

.

.

.


* Estimated travel times arefor theyear 2040





LandscapeBuffers /Physical Separation from RoadwayLOW MED HIGH

$ $$

$5565M


7/13

ALTERNATIVE FEATURES NEGATIVE NEUTRAL POSITIVEConverting I-375 to a surface streetfrom Larned south to eliminateJefferson curve and improvecrossing at East Jefferson

Conversion of northbound servicedrive to two-way local street

Creating new riverfront connectiondirectly from principal roadway

Creation of new greenway space tobuffer neighborhood from principalroadway and create non-motorizedopportunities

ALT

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Need help or have








Overall


8/13

ALT

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ATWATERST

DETROITRIVERWALK

0

0

LEGEND




BRIDGES

RAISEDMEDIANS

PAVEDSHOULDERS


1 00 f t 2 00 f t

BIKELANE





SHARED-USEPATH

E.JEFFERSONAVE

E.JEFFERSONAVE

FRANKLINST

ATWATERST

WOODBRIDGE ST

E. LARNED ST

R IV A

R D

S T

E.LAFAYETTEST

E.LAFAYETTEST

MONROEST

MACOMBST

CLINTONST

MULLETTST

GRATIOTA

VENU

E

E.CONGRESSST

ANTIETAM AVENUE

TO RUSSEL ST. AND

EASTERN MARKET


roadway from East Jeffersonto Atwater Street withbike lanes and pedestrianimprovements.

New signalized intersectionat E. Jefferson Avenueeliminating the Jefferson

curve.

Potential property availablefor reuse


at E. Larned St. / E. CongressSt.

Shared use path withlandscape buffer. (eastneighborhood side)

One way at street at grade.

(southbound)

Freeway transition to street

grade at Clinton.

New direct access to MacombStreet.

Southbound Service Driveeliminated.

Construct surface boulevardshifted to the east.

(neighborhood side)

New signalized intersectionat Lafayette

Improve pedestrianconditions along at-grade streets with walks,landscape, and lighting.

Property access to be

maintained with new accessdrives.

I-375 Corridor - Alternative 4East Edge Boulevard

KEY FEATURES

CROSS-SECTION

LOCATION



DETROIT RIVER

ATWATER

RIVARD

JEFFERSON

JEFFERSON


DOWNTOWN EAST




LOWER EAST

CENTRAL

DISTRICT

GRATIOT

ATWATER

Intersection improvements toallow direct access between

Madison ramps and Gratiot .



QUALITY OF LIFE AND


Significantly improvesstreet

connectivity into thenortheast

cornerofdowntownwithnew

accesscreated to Clintonand

Macomb

Improved, direct connectivity to

riverfront and East Jefferson

Replacessharpcurveat Jefferson

withat-grade signalized

intersection, withindirect

left-turns(Michigan left) for

southbound and eastbound left

turns

Improvesexisting issueswith

southbound right-turnto Congress

No southbound left-turnallowed

onto eastbound Larned; movement

canbe madeat Lafayetteand East

Jefferson

Requiresdriveway extensions

forproperty accessonwest edge

ofboulevard forproperties only

accessiblefromservice drivetoday

Greaterconnectivity betweenI-75

and Gratiot via Madisonramps

NONMOTORIZED


Moderateenhancement to pedestrian

environment withmoresurface

streets, landscapeimprovements and

shorterstreet crossing distances

Fewercrossing barriersat Jefferson

Pedestriancrossingsofnew

boulevard mayrequireintermediate

stopat refugeislandsdue to roadway

width

Strong north/southbikeway

connectionvia shared usepath

Improved accessto transit (along

Gratiot, Lafayetteand East Jefferson)

withdefined bikewayroute

COST AND

ECONOMIC IMPACT Improved accessto RiverEast

development areas, served

asa primary movement

(without requiring freeway

exit)

Development ofpotential

residualland may only

befeasibleif pursued

by adjacent existing

land owners. Otherwise,

development potential

may belimited dueto

parcelsize, orientationand

multiplerequired driveway

connections

Morebalanced multi-modal

useof corridorand improved

aestheticsalong residentialeast

edge

Movesmajorthoroughfarecloser

to residentialneighborhood with

limited physicalbuffer

Potentialforactivepedestrian-

oriented street edgealong new

development onwest edge

should front-facing development

towardsthe I-375 corridoroccur

Limited opportunity forstorm

watermanagement

RenaissanceCenter

DetroitRiverWalk

RivardPlaza


PEDESTRIAN SIDEWALKSESTIMATED TOTAL COST:

55

30

30

Loweroveralllong-

termoperations and

maintenancecostsdue

to narrowing ofroadway

footprint and elimination

ofbridges, although

someadditional costs

related to greenspace

and streetscape

Cost and complexityof

relocationof utilities

currently underthe

southbound servicedrive

Reduced vehicledesignspeeds

improvenon-motorized

experienceand adjacent districts

character

Displacement ofsomeprivate

properties(surface parking

facilitiesand a billboard) dueto


Furtherinvestigationofair

and noiseimpactsmay be

needed dueto the new roadway

alignment and new intersections,

but slowerspeeds areexpected

to decreasethe noiselevels.

ESTIMATED VEHICULAR TRAVEL TIMES IN MINUTES


ON-STREET BIKELANES

SHARED-USEPATH





LandscapeBuffers / Physical Separation from Roadway

On-Street BikeLanes

Shared-UsePaths




AM =


PM =


AM

PM

1.51.0

1.5 3.0


PM

(4Minutes Total)

AM

(3Minutes Total)

..

. .


..

. .

L E I E E L I E A L T E RN A T IV E4INCREASE


LOW MED HIGH

$ $$

$4050MECONOMIC IMPACT POTENTIAL:


9/13



Need help or have








Replacing I-375 as surface boulevardto create new access, reducespeeds, reduce pedestrian crossingdistances, eliminate Jefferson curve


Developing greenway/bikewayfeature along east side of newboulevard

Creation of potential developmentparcels on the west (downtown) sideof the corridor

ALT

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4

Overall


10/13

ALT

ERN

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5

DETROITRIVERWALK

0

0

LEGEND




BRIDGES

RAISEDMEDIANS

PAVEDSHOULDERS


1 00 f t 2 00 f t

BIKELANE





SHARED-USEPATH

E.JEFFERSONAVE

E.JEFFERSONAVE

FRANKLINST

ATWATERST

WOODBRIDGE ST

E LARNEDST

R IV

A R

D

S T

E.LAFAYETTEST

E.LAFAYETTEST

MONROEST

MACOMBST

CLINTONST

MULLETTST

GRATIOTA

VENU

E

ECONGRESSST

ANTIETAM AVENUE

TO RUSSEL ST. AND

EASTERN MARKET

Potential property available

for reuse.


roadway from East Jeffersonto Atwater Street withbike lanes and pedestrianimprovements.

New signalized intersectionat E. Jefferson eliminates

Jefferson Curve.


at E. Larned Street / E.Congress Street

Freeway transition to streetgrade between Gratiot Avenue

and Clinton Street.

New direct access to Clinton

Street and Macomb Street.

Convert northbound servicedrive to two way local road

with bike lanes.

New signalized intersectionsat Monroe Street and

Lafayette Street.

Potential property availablefor reuse

Construct surface boulevardshifted to the west.(downtown side)

I-375 Corridor - Alternative 5West Edge Boulevard

KEY FEATURES

CROSS-SECTION

LOCATION



DETROIT RIVER

ATWATER

RIVARD

JEFFERSON

JEFFERSON


DOWNTOWN EAST




LOWER EAST

CENTRAL

DISTRICT

GRATIOT

ATWATER




QUALITY OF LIFE AND


Improvesstreet connectivity

into downtownwith new

accesscreated to Clintonand

Macomb

Improved, direct connectivity

to riverfront and East

Jefferson

Replacessharpcurveat

Jeffersonwith at-grade

signalized intersection, with

indirect left-turns(Michigan

left) forsouthbound and

eastbound left turns

No southbound left-turn

allowed onto eastbound

Larned; movement can

bemadeat Lafayetteand

East Jefferson

Greaterconnectivity

betweenI-75 and Gratiot

via Madisonramps


NONMOTORIZED


Moderateenhancement to pedestrian

environment withmore surfacestreets,

lowervehicle speeds, landscape

improvementsand shorterstreet

crossing distances

Fewercrossing barriersat East Jefferson

betweenBeaubien and Rivard

Strong north/southbikewayconnection

via two-way localstreet

Improved accessto transit (along

Gratiot, Lafayetteand East Jefferson)

withdefined bikewayroute.

COST AND

ECONOMIC IMPACT

Improved accessto RiverEast

development areas, served as

a primary movement (without

requiring freeway exit)

Reuseofpotentialresidual

land forpublicspace may have

a positiveeconomicimpact on

adjacent properties

Long-termland useand

redevelopment opportunities

arestrongest oneast sideof

thecorridor, making potential

residualland a strategicasset

Morebalanced multi-modal

useof corridoralong east edge

moreconsistent withresidential

area, withimproved aesthetics

Minimalchangeto quality oflife

along west edge

Significant opportunityfor

publicspace asset and/or

long-termstreet activating

development

Reduced vehiclespeedsimprove

adjacent districtscharacter

RenaissanceCenter

DetroitRiverWalk

RivardPlaza


PEDESTRIAN SIDEWALKS

30

30

30

Improve pedestrian

conditions along at-grade streets with walks,landscape, and lighting.

Someresidualland for

potentialredevelopment along

East Jefferson

Loweroveralllong-term

operationsand maintenance

costsdue to narrowing

ofroadway footprint and

eliminationof bridges,

althoughsome additionalcosts

related to greenspace and

streetscape

Shiftsmajortrafficflowsaway

fromeast sideresidential

neighborhood, providing a buffer



facilities) dueto riverfront

connection

Furtherinvestigationofairand

noiseimpacts may beneeded due

to thenew roadway alignment

and new intersections, but slower

speedsare expected to decrease

thenoiselevels.


ON-STREET BIKELANES

ESTIMATED TOTAL COST:AM =


PM =


AM

PM

1.51.0

1.5 3.0


PM

(4Minutes Total)

AM

(3Minutes Total)

..

. .


..

. .


* Estimated travel times arefor theyear 2040LOW MED HIGH

$ $$


On-Street BikeLanes*

Shared-UsePaths




*BufferedAdjacent to Existing/Potential Mixed Land Use




LandscapeBuffers /Physical Separation from Roadway

Potential Downtown gateway

opportunity site


11/13



Need help or have








Replacing I-375 as a surfaceboulevard to create new access,reduce speeds, reduce pedestriancrossing distances, eliminateJefferson curve


Conversion of northbound servicedrive to two-way local street withbike lanes

Creation of potential greenway

space along east side of corridorbetween principal roadway andlocal roadway, with long-termredevelopment potential

ALT

ERN

ATIV

E

5

Overall


12/13

ALT

ERN

ATIV

E

6

DETROITRIVERWALK

0

0

LEGEND




BRIDGES

RAISEDMEDIANS

PAVEDSHOULDERS


1 00 f t 2 00 f t

BIKELANE





SHARED-USEPATH

E.JEFFERSONAVE

E.JEFFERSONAVE

FRANKLINST

ATWATERST

WOODBRIDGE ST

E LARNEDST

R IV

A R D

S T

E.LAFAYETTEST

E.LAFAYETTEST

MONROEST

MACOMBST

CLINTONST

MULLETTST

GRATIOTA

VENU

E

ANTIETAMAVENUE

ECONGRESSST

TORUSSEL ST.AND

EASTERNMARKET

Shared use path belowgrade crossing at E. JeffersonAvenue.

Potential property availablefor reuse.

New riverfront connectorroadway from East Jeffersonto Atwater Street withbike lanes and pedestrianimprovements.

New signalized intersectioneliminates Jefferson curve.

Two (north and south) newsignalized intersections at E.

Larned Street/ E. CongressStreet

Buffered bike lanes on oneway streets.

One way surface street.(northbound)

One way at surface street.(southbound)

Freeway replaced with twoone way roads at Clinton

Street and shifted to servicedrive alignments, each four

lanes in width.

Potential property availablefor reuse.

Two (north and south) newsignalized intersections at

Monroe Street.

Shared use path. Below gradestreet crossings. (typical)

Two (north and south) newsignalized intersections at E.

Lafayette Street.

Improve pedestrian

conditions along at gradestreets with walks, landscape,and lighting.

I-375 Corridor - Alternative 6One-Way Pair of Surface Streets and Below-Grade Greenway

KEY FEATURES



DETROIT RIVER

ATWATER

RIVARD

JEFFERSON

JEFFERSON


DOWNTOWN EAST




LOWER EAST

CENTRAL

DISTRICT

GRATIOT

ATWATER




QUALITY OF LIFE AND


Improvesstreet connectivity into thenortheast

cornerof downtownwith new accesscreated to

Clintonand Macomb

Improved, direct connectivity to riverfront and

East Jefferson

Replacessharpcurveat Jeffersonwithat-grade

signalized intersection, withindirect left-turns

(Michiganleft) forsouthbound and eastbound

left turns

Accommodatesallexisting turnmaneuvers

Greaterconnectivity betweenI-75 and Gratiot via

Madisonramps


NONMOTORIZED


Moderateenhancement

to pedestrian

environment with

moresurfacestreets,

lowervehicle

speeds, landscape

improvementsand

shorterstreet crossing

distances.

Fewercrossing barriers

at East Jefferson

betweenBeaubien and

Rivard

Off-street shared usepath

providesgrade separated

north/southconnection

that promotestrail system

and bikesafety

Improved accessto transit

(along Gratiot, Lafayette

and East Jefferson) with

defined bikewayroute

COST AND

ECONOMIC IMPACT

Improved accessto RiverEast

development areas, served

asa primary movement

(without requiring freeway

exit)

Reuseofresidualland

betweenroadwaysfor public

spaceasset may havea

positiveeconomic impact on

adjacent properties

Greaterlong-termflexibility

to potentially develop

residualland betweenone-

Movesa portionofthe

majorthoroughfarecloser to

residentialneighborhood with

limited physicalbuffer

Minimalimprovement to

qualityof lifealong west edge

Potentialto add a significant

recreationalresourceand

openspace asset (similarto

theDequindre Cut) to Detroits

emerging openspace network

RenaissanceCenter

DetroitRiverWalk

RivardPlaza

NONMOTORIZED SHARED USE PATHS/BIKE LANES PEDESTRIAN SIDEWALKS

30

55

30

30

New direct access to ClintonStreet and Macomb Street.

CROSS-SECTIONLOCATION

way roadwaysdueto larger

parcel

Moderateoveralloperations

and maintenancecosts due

to narrowing ofroadway

footprint and muchsmaller

bridge/culvert structures

Someadditionaloperations

and maintenancecosts

related to below-gradespace,

including trail, landscape,

lighting and security

Reduced vehicledesignspeeds

improvenon-motorized

experienceand adjacent districts

character



facilitiesand a billboard) dueto


Furtherinvestigationofairand

noiseimpacts may beneeded due

to thenew roadway alignment

and new intersections, but slower

speedsare expected to decrease

thenoise levels.

On-Street BikeLanes

Shared-UsePaths




*Buffered Adjacent to Existing/Potential Mixed Land Use




LandscapeBuffers / Physical Separation from Roadway

*GradeSeparated


ON-STREET BIKELANES

SHARED-USEPATH

AM =


PM =


AM

PM

1.51.0

2.53.0


PM

(4Minutes Total)

AM

(4Minutes Total)

..

..


..

..



ESTIMATED TOTAL COST:

LOW MED HIGH

$ $$


Potential Downtown gatewayopportunity site


13/13



Need help or have








Replacing I-375 as two parallel one-way streets to create new access,reduce speeds, reduce pedestriancrossing distances, eliminateJefferson curve and make directriverfront access


Reuse of below-grade space for

multi-use trail (similar to the

Dequindre Cut)

Addition of on-street bike lanesalong parallel principal roadways

ALT

ERN

ATIV

E

6

Overall

Diagrams of alternatives to I-375 in Detroit

Documents

Transcript of Diagrams of alternatives to I-375 in Detroit