US Bridges

NB M-39 Service DR over North Br. Ecorse River

Fair

Wayne County, Michigan · In Allen Park · Structure no. 000000000012307

Built
1962
63 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
37 ft
1 main span
Daily traffic
8,800
1995 count
Owner
City
City or Municipal Highway Agency

About this bridge

NB M-39 Service DR over North Br. Ecorse River is a steel stringer/multi-beam or girder carrying NB M-39 Service DR over North Br. Ecorse River in Wayne County, Michigan. It was built in 1962, so it is 63 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 6 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 8,800 vehicles a day, roughly 10% of them trucks, projected to reach 10,000 by 2010. The structure is 37 ft (11.2 m) long and 48 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNB M-39 Service DR
CrossesNorth Br. Ecorse River
LocationIn Allen Park
RouteCity Street 2057
CountyWayne County
StateMichigan
Coordinates42.27365, -83.22012
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
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 rating85.8 US tons
Inventory rating51 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length37 ft (11.2 m)
Longest span31 ft (9.4 m)
Deck width48 ft (14.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,800 (1995)
Projected traffic10,000 by 2010
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$24,000
NavigationNo navigation control on waterway

Frequently asked questions

When was NB M-39 Service DR over North Br. Ecorse River built?

It was built in 1962, making it 63 years old in 2025.

What condition is NB M-39 Service DR over North Br. Ecorse 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 November 2024.

How much traffic does NB M-39 Service DR over North Br. Ecorse River carry?

About 8,800 vehicles per day (1995 count), of which roughly 10% are trucks.

How long is NB M-39 Service DR over North Br. Ecorse River?

The structure is 37 ft (11.2 m) long with a longest span of 31 ft (9.4 m) and a deck 48 ft wide.

Who owns NB M-39 Service DR over North Br. Ecorse River?

It is owned by the City or Municipal Highway Agency.