US Bridges

Adams Road over Clinton River

Fair

Oakland County, Michigan · Bet Hamlin and Avon Rds · Structure no. 000000000008151

Built
1959
66 years old
Condition
Fair
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
36 ft
1 main span
Daily traffic
15,351
1991 count
Owner
County
County Highway Agency

About this bridge

Adams Road over Clinton River is a prestressed concrete box beam or girders - multiple carrying Adams Road over Clinton River in Oakland County, Michigan. It was built in 1959, so it is 66 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 15,351 vehicles a day, roughly 7% of them trucks, projected to reach 19,600 by 2010. The structure is 36 ft (10.9 m) long and 34 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesAdams Road
CrossesClinton River
LocationBet Hamlin and Avon Rds
RouteCounty Highway 2059
CountyOakland County
StateMichigan
Coordinates42.65368, -83.19282
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 12 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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.5 US tons
Inventory rating33.6 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20 + Mod
Structure length36 ft (10.9 m)
Longest span30 ft (9.1 m)
Deck width34 ft (10.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,351 (1991)
Projected traffic19,600 by 2010
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$159,000 (2050 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Adams Road over Clinton River built?

It was built in 1959, making it 66 years old in 2025.

What condition is Adams Road over Clinton 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 Adams Road over Clinton River carry?

About 15,351 vehicles per day (1991 count), of which roughly 7% are trucks.

How long is Adams Road over Clinton River?

The structure is 36 ft (10.9 m) long with a longest span of 30 ft (9.1 m) and a deck 34 ft wide.

Who owns Adams Road over Clinton River?

It is owned by the County Highway Agency.