US Bridges

Leforge Street over Huron River

PoorPosted for load

Washtenaw County, Michigan · In City of Ypsilanti · Structure no. 000000000011091

Built
1983
42 years old
Condition
Poor
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
219 ft
3 main spans
Daily traffic
12,156
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Leforge Street over Huron River is a prestressed concrete box beam or girders - multiple carrying Leforge Street over Huron River in Washtenaw County, Michigan. It was built in 1983, so it is 42 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 12,156 vehicles a day, projected to reach 21,956 by 2043. The structure is 219 ft (66.6 m) long and 72 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLeforge Street
CrossesHuron River
LocationIn City of Ypsilanti
RouteCity Street 0
Coordinates42.25566, -83.62216
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
Deck8 Very GoodNo problems noted.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.3 US tons
Inventory rating29.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length219 ft (66.6 m)
Longest span73 ft (22.2 m)
Deck width72 ft (22 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,156 (2023)
Projected traffic21,956 by 2043
Trucks0%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Leforge Street over Huron River built?

It was built in 1983, making it 42 years old in 2025.

What condition is Leforge Street over Huron River 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 August 2024.

How much traffic does Leforge Street over Huron River carry?

About 12,156 vehicles per day (2023 count).

How long is Leforge Street over Huron River?

The structure is 219 ft (66.6 m) long with a longest span of 73 ft (22.2 m) and a deck 72 ft wide.

Who owns Leforge Street over Huron River?

It is owned by the City or Municipal Highway Agency.