US Bridges

Ramp to US-12 over I-94

Fair

Wayne County, Michigan · In Dearborn · Structure no. 000000000011141

Built
1948
77 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
116 ft
2 main spans
Daily traffic
11,760
1982 count
Owner
State
State Highway Agency

About this bridge

Ramp to US-12 over I-94 is a steel stringer/multi-beam or girder carrying Ramp to US-12 over I-94 in Wayne County, Michigan. It was built in 1948, 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 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 11,760 vehicles a day, projected to reach 13,524 by 2002. The structure is 116 ft (35.3 m) long and 46 ft wide.

CarriesRamp to US-12
CrossesI-94
LocationIn Dearborn
RouteU.S. Route 12
Coordinates42.32761, -83.15941
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
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 geometry9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating76.4 US tons
Inventory rating45.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length116 ft (35.3 m)
Longest span58 ft (17.6 m)
Deck width46 ft (13.9 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,760 (1982)
Projected traffic13,524 by 2002
Trucks—
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ramp to US-12 over I-94 built?

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

What condition is Ramp to US-12 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 Ramp to US-12 over I-94 carry?

About 11,760 vehicles per day (1982 count).

How long is Ramp to US-12 over I-94?

The structure is 116 ft (35.3 m) long with a longest span of 58 ft (17.6 m) and a deck 46 ft wide.

Who owns Ramp to US-12 over I-94?

It is owned by the State Highway Agency.