US Bridges

US-12 (michigan Av over I-94

Fair

Wayne County, Michigan · In Dearborn · Structure no. 000000000011140

Built
1948
77 years old, rebuilt 1996
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
224 ft
2 main spans
Daily traffic
28,335
2007 count
Owner
State
State Highway Agency

About this bridge

US-12 (michigan Av over I-94 is a steel stringer/multi-beam or girder carrying US-12 (michigan Av over I-94 in Wayne County, Michigan. It was built in 1948 and reconstructed in 1996, so it is 77 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 28,335 vehicles a day, roughly 4% of them trucks, projected to reach 12,250 by 2026. The structure is 224 ft (68.2 m) long and 118 ft wide.

Location

Open in Google Maps
CarriesUS-12 (michigan Av
CrossesI-94
LocationIn Dearborn
RouteU.S. Route 12
CountyWayne County
StateMichigan
Coordinates42.32661, -83.1606
Functional classUrban Other Principal 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating97.1 US tons
Inventory rating58.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length224 ft (68.2 m)
Longest span119 ft (36.3 m)
Deck width118 ft (35.9 m)
Roadway width90 ft (27.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,335 (2007)
Projected traffic12,250 by 2026
Trucks4%
Lanes on structure9
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US-12 (michigan Av over I-94 built?

It was built in 1948, making it 77 years old in 2025. It was reconstructed in 1996.

What condition is US-12 (michigan Av over I-94 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 September 2023.

How much traffic does US-12 (michigan Av over I-94 carry?

About 28,335 vehicles per day (2007 count), of which roughly 4% are trucks.

How long is US-12 (michigan Av over I-94?

The structure is 224 ft (68.2 m) long with a longest span of 119 ft (36.3 m) and a deck 118 ft wide.

Who owns US-12 (michigan Av over I-94?

It is owned by the State Highway Agency.