US Bridges

Main Street over Flint River

Fair

Genesee County, Michigan · In Flushing · Structure no. 000000000002860

Built
1922
103 years old, rebuilt 1998
Condition
Fair
inspected September 2024
Type
Arch - Deck
Concrete
Length
184 ft
3 main spans
Daily traffic
10,895
1997 count
Owner
City
City or Municipal Highway Agency

About this bridge

Main Street over Flint River is a concrete arch - deck carrying Main Street over Flint River in Genesee County, Michigan. It was built in 1922 and reconstructed in 1998, so it is 103 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 10,895 vehicles a day, roughly 2% of them trucks, projected to reach 19,678 by 2017. The structure is 184 ft (56.1 m) long and 39 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesMain Street
CrossesFlint River
LocationIn Flushing
RouteCity Street 2002
CountyGenesee County
StateMichigan
Coordinates43.06298, -83.8566
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60.1 US tons
Inventory rating36.4 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length184 ft (56.1 m)
Longest span66 ft (20.1 m)
Deck width39 ft (12 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,895 (1997)
Projected traffic19,678 by 2017
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed8.7 mi (14 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 Flint River built?

It was built in 1922, making it 103 years old in 2025. It was reconstructed in 1998.

What condition is Main Street 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 September 2024.

How much traffic does Main Street over Flint River carry?

About 10,895 vehicles per day (1997 count), of which roughly 2% are trucks.

How long is Main Street over Flint River?

The structure is 184 ft (56.1 m) long with a longest span of 66 ft (20.1 m) and a deck 39 ft wide.

Who owns Main Street over Flint River?

It is owned by the City or Municipal Highway Agency.