US Bridges

Six Mile Road over Middle Rouge River

FairPosted for load

Wayne County, Michigan · Northville T W/Northv RD · Structure no. 000000000012086

Built
1933
92 years old
Condition
Fair
inspected May 2023
Type
Frame
Concrete
Length
60 ft
1 main span
Daily traffic
9,326
1997 count
Owner
County
County Highway Agency

About this bridge

Six Mile Road over Middle Rouge River is a concrete frame carrying Six Mile Road over Middle Rouge River in Wayne County, Michigan. It was built in 1933, so it is 92 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. Its operating status is: posted for load restriction.

It carries about 9,326 vehicles a day, roughly 5% of them trucks, projected to reach 12,000 by 2015. The structure is 60 ft (18.2 m) long and 56 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSix Mile Road
CrossesMiddle Rouge River
LocationNorthville T W/Northv RD
RouteCounty Highway 2057
CountyWayne County
StateMichigan
Coordinates42.41089, -83.47082
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.8 US tons
Inventory rating19 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length60 ft (18.2 m)
Longest span54 ft (16.4 m)
Deck width56 ft (17 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,326 (1997)
Projected traffic12,000 by 2015
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 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 Six Mile Road over Middle Rouge River built?

It was built in 1933, making it 92 years old in 2025.

What condition is Six 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 Six Mile Road over Middle Rouge River carry?

About 9,326 vehicles per day (1997 count), of which roughly 5% are trucks.

How long is Six Mile Road over Middle Rouge River?

The structure is 60 ft (18.2 m) long with a longest span of 54 ft (16.4 m) and a deck 56 ft wide.

Who owns Six Mile Road over Middle Rouge River?

It is owned by the County Highway Agency.