US Bridges

12 MI RD S Interch over I-94

Fair

Macomb County, Michigan · W Lts of ST Clair Shores · Structure no. 000000000006157

Built
1967
58 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
195 ft
4 main spans
Daily traffic
3,500
1975 count
Owner
State
State Highway Agency

About this bridge

12 MI RD S Interch over I-94 is a steel stringer/multi-beam or girder carrying 12 MI RD S Interch over I-94 in Macomb County, Michigan. It was built in 1967, 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 3,500 vehicles a day, roughly 3% of them trucks, projected to reach 3,250 by 2020. The structure is 195 ft (59.4 m) long and 29 ft wide.

Location

Open in Google Maps
Carries12 MI RD S Interch
CrossesI-94
LocationW Lts of ST Clair Shores
RouteCounty Highway 2058
CountyMacomb County
StateMichigan
Coordinates42.5091, -82.91818
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 inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.3 US tons
Inventory rating46.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length195 ft (59.4 m)
Longest span62 ft (19 m)
Deck width29 ft (8.7 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,500 (1975)
Projected traffic3,250 by 2020
Trucks3%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was 12 MI RD S Interch over I-94 built?

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

What condition is 12 MI RD S Interch 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 S Interch over I-94 carry?

About 3,500 vehicles per day (1975 count), of which roughly 3% are trucks.

How long is 12 MI RD S Interch over I-94?

The structure is 195 ft (59.4 m) long with a longest span of 62 ft (19 m) and a deck 29 ft wide.

Who owns 12 MI RD S Interch over I-94?

It is owned by the State Highway Agency.