US Bridges

I-75 Br over Clinton River

Poor

Oakland County, Michigan · At Lawrence Street · Structure no. 000000000008137

Built
1964
61 years old
Condition
Poor
inspected October 2024
Type
Culvert
Steel
Length
31 ft
3 main spans
Daily traffic
40,292
2007 count
Owner
State
State Highway Agency

About this bridge

I-75 Br over Clinton River is a steel culvert carrying I-75 Br over Clinton River in Oakland County, Michigan. It was built in 1964, so it is 61 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 40,292 vehicles a day, roughly 3% of them trucks, projected to reach 36,918 by 2018. The structure is 31 ft (9.4 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesI-75 Br
CrossesClinton River
LocationAt Lawrence Street
RouteInterstate 75
CountyOakland County
StateMichigan
Coordinates42.63709, -83.29504
Functional classUrban Other Principal Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 20 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: 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 rating107.1 US tons
Inventory rating107.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length31 ft (9.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,292 (2007)
Projected traffic36,918 by 2018
Trucks3%
Lanes on structure5
Traffic directionOne-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 I-75 Br over Clinton River built?

It was built in 1964, making it 61 years old in 2025.

What condition is I-75 Br over Clinton River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does I-75 Br over Clinton River carry?

About 40,292 vehicles per day (2007 count), of which roughly 3% are trucks.

How long is I-75 Br over Clinton River?

The structure is 31 ft (9.4 m) long with a longest span of 10 ft (3 m).

Who owns I-75 Br over Clinton River?

It is owned by the State Highway Agency.