US Bridges

Laplaisance Road over Laplaisance Creek

PoorPosted for load

Monroe County, Michigan · 0.25 M S of I-75 · Structure no. 000000000007244

Built
1988
37 years old
Condition
Poor
inspected September 2024
Type
Culvert
Concrete
Length
24 ft
1 main span
Daily traffic
7,130
2017 count
Owner
County
County Highway Agency

About this bridge

Laplaisance Road over Laplaisance Creek is a concrete culvert carrying Laplaisance Road over Laplaisance Creek in Monroe County, Michigan. It was built in 1988, so it is 37 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 7,130 vehicles a day, roughly 1% of them trucks, projected to reach 8,198 by 2037. The structure is 24 ft (7.4 m) long. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesLaplaisance Road
CrossesLaplaisance Creek
Location0.25 M S of I-75
RouteCounty Highway 2016
CountyMonroe County
StateMichigan
Coordinates41.87456, -83.39417
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating34.3 US tons
Inventory rating20.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length24 ft (7.4 m)
Longest span22 ft (6.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,130 (2017)
Projected traffic8,198 by 2037
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Laplaisance Road over Laplaisance Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is Laplaisance Road over Laplaisance Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does Laplaisance Road over Laplaisance Creek carry?

About 7,130 vehicles per day (2017 count), of which roughly 1% are trucks.

How long is Laplaisance Road over Laplaisance Creek?

The structure is 24 ft (7.4 m) long with a longest span of 22 ft (6.7 m).

Who owns Laplaisance Road over Laplaisance Creek?

It is owned by the County Highway Agency.