US Bridges

12 MI RD over I-94

Fair

Macomb County, Michigan · W Lts of ST Clair Shores · Structure no. 000000000006158

Built
1967
58 years old, rebuilt 2002
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
197 ft
4 main spans
Daily traffic
28,600
1974 count
Owner
State
State Highway Agency

About this bridge

12 MI RD over I-94 is a steel stringer/multi-beam or girder carrying 12 MI RD over I-94 in Macomb County, Michigan. It was built in 1967 and reconstructed in 2002, so it is 58 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 28,600 vehicles a day, roughly 3% of them trucks, projected to reach 28,600 by 1977. The structure is 197 ft (60 m) long and 62 ft wide.

Location

Open in Google Maps
Carries12 MI RD
CrossesI-94
LocationW Lts of ST Clair Shores
RouteCounty Highway 2058
CountyMacomb County
StateMichigan
Coordinates42.51, -82.91822
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 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 rating79.3 US tons
Inventory rating47.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length197 ft (60 m)
Longest span63 ft (19.1 m)
Deck width62 ft (19 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,600 (1974)
Projected traffic28,600 by 1977
Trucks3%
Lanes on structure4
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 statusNot eligible for the National Register of Historic Places
Work proposedDeck replacement with only incidental widening
Estimated improvement cost$295,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was 12 MI RD over I-94 built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 2002.

What condition is 12 MI RD 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 June 2023.

How much traffic does 12 MI RD over I-94 carry?

About 28,600 vehicles per day (1974 count), of which roughly 3% are trucks.

How long is 12 MI RD over I-94?

The structure is 197 ft (60 m) long with a longest span of 63 ft (19.1 m) and a deck 62 ft wide.

Who owns 12 MI RD over I-94?

It is owned by the State Highway Agency.