US Bridges

8 Mile RD over Rouge River

Fair

Oakland County, Michigan · Bet Grand River and Middl · Structure no. 000000000008163

Built
1966
59 years old, rebuilt 2004
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
31 ft
1 main span
Daily traffic
20,809
1991 count
Owner
County
County Highway Agency

About this bridge

8 Mile RD over Rouge River is a prestressed concrete stringer/multi-beam or girder carrying 8 Mile RD over Rouge River in Oakland County, Michigan. It was built in 1966 and reconstructed in 2004, so it is 59 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 20,809 vehicles a day, roughly 5% of them trucks, projected to reach 42,700 by 2010. The structure is 31 ft (9.4 m) long and 76 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries8 Mile RD
CrossesRouge River
LocationBet Grand River and Middl
RouteCounty Highway 2059
CountyOakland County
StateMichigan
Coordinates42.44178, -83.3281
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.
Superstructure7 GoodSome minor problems.
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 inspectionJuly 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85 US tons
Inventory rating50.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length31 ft (9.4 m)
Longest span28 ft (8.5 m)
Deck width76 ft (23.3 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,809 (1991)
Projected traffic42,700 by 2010
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 8 Mile RD over Rouge River built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 2004.

What condition is 8 Mile RD over Rouge 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 July 2024.

How much traffic does 8 Mile RD over Rouge River carry?

About 20,809 vehicles per day (1991 count), of which roughly 5% are trucks.

How long is 8 Mile RD over Rouge River?

The structure is 31 ft (9.4 m) long with a longest span of 28 ft (8.5 m) and a deck 76 ft wide.

Who owns 8 Mile RD over Rouge River?

It is owned by the County Highway Agency.