US Bridges

M-39 NB Serv RD over Rouge River

Fair

Wayne County, Michigan · In Dearborn · Structure no. 000000000011674

Built
1963
62 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
340 ft
5 main spans
Daily traffic
19,480
1982 count
Owner
State
State Highway Agency

About this bridge

M-39 NB Serv RD over Rouge River is a steel continuous stringer/multi-beam or girder carrying M-39 NB Serv RD over Rouge River in Wayne County, Michigan. It was built in 1963, so it is 62 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 19,480 vehicles a day, roughly 3% of them trucks, projected to reach 19,480 by 2000. The structure is 340 ft (103.6 m) long and 39 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesM-39 NB Serv RD
CrossesRouge River
LocationIn Dearborn
RouteState Highway 39
CountyWayne County
StateMichigan
Coordinates42.30751, -83.21414
Functional classUrban Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: 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 rating68.2 US tons
Inventory rating40.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length340 ft (103.6 m)
Longest span90 ft (27.4 m)
Deck width39 ft (12 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,480 (1982)
Projected traffic19,480 by 2000
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 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 M-39 NB Serv RD over Rouge River built?

It was built in 1963, making it 62 years old in 2025.

What condition is M-39 NB Serv 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 October 2023.

How much traffic does M-39 NB Serv RD over Rouge River carry?

About 19,480 vehicles per day (1982 count), of which roughly 3% are trucks.

How long is M-39 NB Serv RD over Rouge River?

The structure is 340 ft (103.6 m) long with a longest span of 90 ft (27.4 m) and a deck 39 ft wide.

Who owns M-39 NB Serv RD over Rouge River?

It is owned by the State Highway Agency.