US Bridges

Saginaw Street over Flint River

Fair

Genesee County, Michigan · In Flint · Structure no. 000000000002849

Built
1976
49 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
154 ft
3 main spans
Daily traffic
14,204
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Saginaw Street over Flint River is a prestressed concrete stringer/multi-beam or girder carrying Saginaw Street over Flint River in Genesee County, Michigan. It was built in 1976, so it is 49 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 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 14,204 vehicles a day, roughly 10% of them trucks, projected to reach 17,333 by 2038. The structure is 154 ft (46.9 m) long and 79 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSaginaw Street
CrossesFlint River
LocationIn Flint
RouteCity Street 2002
Coordinates43.01878, -83.69311
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating89.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length154 ft (46.9 m)
Longest span51 ft (15.6 m)
Deck width79 ft (24.1 m)
Roadway width59 ft (17.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,204 (2018)
Projected traffic17,333 by 2038
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 Saginaw Street over Flint River built?

It was built in 1976, making it 49 years old in 2025.

What condition is Saginaw 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 October 2024.

How much traffic does Saginaw Street over Flint River carry?

About 14,204 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is Saginaw Street over Flint River?

The structure is 154 ft (46.9 m) long with a longest span of 51 ft (15.6 m) and a deck 79 ft wide.

Who owns Saginaw Street over Flint River?

It is owned by the City or Municipal Highway Agency.