US Bridges

M-54 over Flint River

Fair

Genesee County, Michigan · In Flint (2.6 MI N of Cou · Structure no. 000000000002567

Built
1926
99 years old, rebuilt 1990
Condition
Fair
inspected August 2024
Type
Arch - Deck
Concrete
Length
208 ft
3 main spans
Daily traffic
15,881
2007 count
Owner
State
State Highway Agency

About this bridge

M-54 over Flint River is a concrete arch - deck carrying M-54 over Flint River in Genesee County, Michigan. It was built in 1926 and reconstructed in 1990, so it is 99 years old, older 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 5 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 15,881 vehicles a day, roughly 6% of them trucks, projected to reach 17,417 by 2018. The structure is 208 ft (63.4 m) long and 80 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesM-54
CrossesFlint River
LocationIn Flint (2.6 MI N of Cou
RouteState Highway 54
CountyGenesee County
StateMichigan
Coordinates43.05318, -83.66909
Functional classUrban Other Principal 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
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 rating82.1 US tons
Inventory rating49.3 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length208 ft (63.4 m)
Longest span72 ft (21.9 m)
Deck width80 ft (24.4 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,881 (2007)
Projected traffic17,417 by 2018
Trucks6%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 M-54 over Flint River built?

It was built in 1926, making it 99 years old in 2025. It was reconstructed in 1990.

What condition is M-54 over Flint 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 August 2024.

How much traffic does M-54 over Flint River carry?

About 15,881 vehicles per day (2007 count), of which roughly 6% are trucks.

How long is M-54 over Flint River?

The structure is 208 ft (63.4 m) long with a longest span of 72 ft (21.9 m) and a deck 80 ft wide.

Who owns M-54 over Flint River?

It is owned by the State Highway Agency.