US Bridges

I-75 NB over Flushing RD

Fair

Genesee County, Michigan · N of Flint River · Structure no. 000000000002502

Built
1958
67 years old, rebuilt 1973
Condition
Fair
inspected September 2024
Type
Tee Beam
Concrete Continuous
Length
174 ft
3 main spans
Daily traffic
76,600
2013 count
Owner
State
State Highway Agency

About this bridge

I-75 NB over Flushing RD is a concrete continuous tee beam carrying I-75 NB over Flushing RD in Genesee County, Michigan. It was built in 1958 and reconstructed in 1973, so it is 67 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 76,600 vehicles a day, roughly 7% of them trucks, projected to reach 50,025 by 2018. The structure is 174 ft (52.9 m) long and 62 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-75 NB
CrossesFlushing RD
LocationN of Flint River
RouteInterstate 75
CountyGenesee County
StateMichigan
Coordinates43.03234, -83.75404
Functional classUrban Principal Arterial - Interstate

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.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating32.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length174 ft (52.9 m)
Longest span70 ft (21.3 m)
Deck width62 ft (18.8 m)
Roadway width58 ft (17.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic76,600 (2013)
Projected traffic50,025 by 2018
Trucks7%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-75 NB over Flushing RD built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1973.

What condition is I-75 NB over Flushing RD 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 I-75 NB over Flushing RD carry?

About 76,600 vehicles per day (2013 count), of which roughly 7% are trucks.

How long is I-75 NB over Flushing RD?

The structure is 174 ft (52.9 m) long with a longest span of 70 ft (21.3 m) and a deck 62 ft wide.

Who owns I-75 NB over Flushing RD?

It is owned by the State Highway Agency.