US Bridges

Main Street over Shiawassee River

Fair

Genesee County, Michigan · In Linden · Structure no. 000000000002866

Built
1988
37 years old
Condition
Fair
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
5,232
1988 count
Owner
City
City or Municipal Highway Agency

About this bridge

Main Street over Shiawassee River is a prestressed concrete box beam or girders - multiple carrying Main Street over Shiawassee River in Genesee 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 5,232 vehicles a day, roughly 2% of them trucks, projected to reach 9,400 by 2008. The structure is 50 ft (15.2 m) long and 66 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesMain Street
CrossesShiawassee River
LocationIn Linden
RouteCity Street 2050
Coordinates42.81587, -83.78232
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating53.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span49 ft (14.8 m)
Deck width66 ft (20.1 m)
Roadway width47 ft (14.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,232 (1988)
Projected traffic9,400 by 2008
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 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 Main Street over Shiawassee River built?

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

What condition is Main Street over Shiawassee River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2024.

How much traffic does Main Street over Shiawassee River carry?

About 5,232 vehicles per day (1988 count), of which roughly 2% are trucks.

How long is Main Street over Shiawassee River?

The structure is 50 ft (15.2 m) long with a longest span of 49 ft (14.8 m) and a deck 66 ft wide.

Who owns Main Street over Shiawassee River?

It is owned by the City or Municipal Highway Agency.