I-75/LaPlaisance Road Interchange Reconstruction Presentation
I-75 / LAPLAISANCE ROADINTERCHANGERECONSTRUCTION
PROJECT OVERVIEW
PROJECT LIMITSEND constructionlimits alongLaPlaisance RoadLimitedROWAlbainRoadCity of MonroeRamp EDavisDrainRamp CMonroeTownship FireStation No. 2LaPlaisance Creekextends throughthe project limitsMonroe Charter TownshipLimitedROWRamp DMonroeBoat ClubLinks of LakeErie Golf Courseadjacent toproject limitsRamp BHarborMarine Trout’sYachtBasinRamp ALake ErieBEGIN constructionlimits alongLaPlaisance Road
PROJECT DETAILS Interchangestudy completed to determine bestalternative for design and construction Structurestudy approval from Federal Highway Reconstructionof LaPlaisance bridge over I-75 Reconstructionof LaPlaisance Road interchange Reconstructionof LaPlaisance Road Reconfigurationof interchange
PROJECT TIMELINEProject LettingMarch 5, 2021Spring 2021 to Spring 2022Construction!
Bridge andpavementconditionInterchangeModernization LaPlaisance Rd bridge over I-75 and LaPlaisance Roadconstructed in 1955 LaPlaisance Rd interchange ramps reconstructed in 1974 25-year (2045) traffic projections Reconfiguration of interchange Shorter bridge to reduce upfront and futuremaintenance costsPROJECT NEED
SPECIFIC PROJECTINFORMATION(INTERCHANGERECONFIGURATION)
LaPlaisance Road over I-75 (existing condition) Bridgecurrently closed to traffic Requiresreplacement due tocurrent condition Existing14 ft-3 inch (SB) minimumposted underclearance
LaPlaisance Roadand Ramps
Theexisting interchangeoperates at an acceptableLevel of Service (LOS)LOS is a term used to describe theoperating conditions of a roadwaybased on speed, travel time,maneuverability, delay and safety
Crash History (potential mitigation strategies) Improvedphysical pavement condition Operationalimprovement of ramp terminals (specifically SB exit ramp)
PROJECT BENEFITS WHY REPLACE THE BRIDGE ANDRECONFIGURE THE INTERCHANGE?PROMOTE BETTER TRAFFICFLOW AND VEHICULARSAFETYCONSTRUCTED WITHFUTURE PEDESTRIANCROSSING SAFETY IN MINDBUILD AND MAINTAINONLY WHAT IS NEEDED
Project Overview(Proposed Interchange)Reduce angle ofbridge to I-75 andshorten lengthFuture ramp tie inwith roundaboutto reduce re-workOverall reducedinterchangefootprintRoundaboutsconstructed at theramp terminalsEliminateloop rampExisting Interchange
Project Overview Additionaladvantages to the roundabout configuration: With stop condition at the terminals, the NB I-75 exit ramp operates at a LOS F(roundabouts give the ability to keep traffic moving) Reduced future maintenance costs for the LaPlaisance bridge over I-75 Eliminates NB I-75 exit ramp bridge over LaPlaisance Creek in the future Limited space available to upgrade geometrics in current configuration
Proposed LaPlaisanceRoad Bridge over I-75
Theproposed interchangeoperates at an acceptableLevel of Service throughdesign year 2045
Project Overview(NB Roundabout) Truckapron designand constructed tobe driven on
Project Overview(SB Roundabout)
OTHER FEATURES
PEDESTRIANIMPROVEMENTS
MAINTAINING TRAFFIC
CONSTRUCTIONSTAGE 1 (2021)This project is proposed to be built in 4construction stagesConstruction: New LaPlaisance Bridge over I-75 Northern roundabout Miscellaneous ramp and LaPlaisanceroad workTraffic: All lanes open on I-75 All ramps open, except the loop ramp One NB lane open on LaPlaisance RoadNorthernRoundaboutLaPlaisanceRoad bridgeover I-75Loop rampclosed
CONSTRUCTION (2021)Construction: LaPlaisance Bridge over I-75Traffic: All lanes open on I-75. Shoulders closed.
CONSTRUCTIONSTAGE 2 (2021)Ramp EConstruction: Ramps C and E LaPlaisance Road Continue bridge workTraffic: I-75 traffic shifted to accommodateramp and bridge work Ramp C closed (detoured via OtterCreek interchange) One NB lane open on LaPlaisance RoadRamp CLaPlaisanceRoad bridgeover I-75
CONSTRUCTIONSTAGE 3 (2021)Construction: Ramp D Southern roundabout Work along NB I-75 and finish bridgeTraffic: I-75 traffic remains shifted Close and detour LaPlaisance Road All ramps closed, except Ramp A, SB only Ramp E traffic detoured via Otter Creekinterchange Ramp D traffic detoured via Front StreetinterchangeRamp DSouthernRoundaboutRamp A
CONSTRUCTIONSTAGE 4 (2021)Construction: Continue construction of LaPlaisance Rd Construct Ramp A Remove loop ramp Remove the existing bridge over I-75Existing bridgedemoTraffic: I-75 traffic remains shifted LaPlaisance Road remains closed All ramps closed and detoured Ramp A traffic detoured via Otter CreekInterchangeRemoveloop rampRamp A
CONTACT AND FEEDBACKAaron Jenkins, Communications SpecialistEmail: Jenkinsa10@michigan.govPhone: 517-750-0406Monica Monsma, Public Involvement Specialist andHearings OfficerEmail:monsmam@michigan.govPhone: 517-335-4381
Lake Erie Links of Lake Erie Golf Course adjacent to project limits Monroe Township Fire Station No. 2 Trout’s Yacht Basin Monroe Boat Club Harbor Marine Monroe Charter Township City of Monroe Ramp E Ramp D Ramp C Ramp B Ramp A LaPlaisance Creek extends through the project limits Davis Drain Limited ROW L
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2. Diamond interchange: Diamond interchange is a popular form of four-leg interchange found in the urban locations where major and minor roads crosses. The important feature of this interchange is that it can be designed even if the major road is relatively narrow. A typical layout of diamond interchange is shown in figure. Diamond interchange 3.
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Route 46 between Carr Lane and Russell Road: from CARR LANE via Guildford Road, Kew Road, Eastbourne Road, Cemetery Road, Duke Street, Shakespeare Street, St. James Street, Eastbank Street, Lord Street, London Street, Derby Road, Sussex Road, Norwood Road, Bispham Road, Canning Road, Crowland Street to RUSSELL ROAD.
between the major regional commercial development areas in Florence, Kentucky, and the Interstate System. As shown in Figure ES1, the I-75 interchange with Mall Road is currently a partial interchange. Motorists traveling Mall Road have access only to northbound I-75 via Exit 180-A (MP 180.853).
diverse computer systems has exacerbated the data interchange problems. To date, most of the attempts to minimize the interchange problem revolve around the establishment of standard formats. Individual disciplines and projects have solved their data interchange problems by defining formats specialized to the applications.
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