US Bridges

Seven Mile Road over Middle Rouge River

Fair

Wayne County, Michigan · Northville W/Northvill RD · Structure no. 000000000012094

Built
1954
71 years old
Condition
Fair
inspected May 2023
Type
Slab
Concrete Continuous
Length
65 ft
3 main spans
Daily traffic
7,853
1995 count
Owner
County
County Highway Agency

About this bridge

Seven Mile Road over Middle Rouge River is a concrete continuous slab carrying Seven Mile Road over Middle Rouge River in Wayne County, Michigan. It was built in 1954, so it is 71 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 7,853 vehicles a day, roughly 3% of them trucks, projected to reach 6,640 by 2015. The structure is 65 ft (19.8 m) long and 54 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSeven Mile Road
CrossesMiddle Rouge River
LocationNorthville W/Northvill RD
RouteCounty Highway 2057
CountyWayne County
StateMichigan
Coordinates42.42554, -83.47789
Functional classUrban Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95.7 US tons
Inventory rating57.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length65 ft (19.8 m)
Longest span24 ft (7.3 m)
Deck width54 ft (16.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,853 (1995)
Projected traffic6,640 by 2015
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

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 Seven Mile Road over Middle Rouge River built?

It was built in 1954, making it 71 years old in 2025.

What condition is Seven Mile Road over Middle 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 May 2023.

How much traffic does Seven Mile Road over Middle Rouge River carry?

About 7,853 vehicles per day (1995 count), of which roughly 3% are trucks.

How long is Seven Mile Road over Middle Rouge River?

The structure is 65 ft (19.8 m) long with a longest span of 24 ft (7.3 m) and a deck 54 ft wide.

Who owns Seven Mile Road over Middle Rouge River?

It is owned by the County Highway Agency.