US Bridges

M-85 NB over Ecorse Creek

Good

Wayne County, Michigan · In Lincoln Park · Structure no. 000000000011792

Built
1970
55 years old
Condition
Good
inspected November 2024
Type
Slab
Concrete Continuous
Length
55 ft
2 main spans
Daily traffic
15,273
2007 count
Owner
State
State Highway Agency

About this bridge

M-85 NB over Ecorse Creek is a concrete continuous slab carrying M-85 NB over Ecorse Creek in Wayne County, Michigan. It was built in 1970, so it is 55 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 15,273 vehicles a day, roughly 4% of them trucks, projected to reach 16,430 by 2018. The structure is 55 ft (16.7 m) long and 65 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesM-85 NB
CrossesEcorse Creek
LocationIn Lincoln Park
RouteState Highway 85
CountyWayne County
StateMichigan
Coordinates42.26172, -83.16721
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 18 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than 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 rating64.6 US tons
Inventory rating38.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length55 ft (16.7 m)
Longest span28 ft (8.5 m)
Deck width65 ft (19.7 m)
Roadway width53 ft (16.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,273 (2007)
Projected traffic16,430 by 2018
Trucks4%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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-85 NB over Ecorse Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is M-85 NB over Ecorse Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2024.

How much traffic does M-85 NB over Ecorse Creek carry?

About 15,273 vehicles per day (2007 count), of which roughly 4% are trucks.

How long is M-85 NB over Ecorse Creek?

The structure is 55 ft (16.7 m) long with a longest span of 28 ft (8.5 m) and a deck 65 ft wide.

Who owns M-85 NB over Ecorse Creek?

It is owned by the State Highway Agency.