US Bridges

9 MI RD over I-94

Fair

Macomb County, Michigan · W Lts of ST Clair Shores · Structure no. 000000000006148

Built
1967
58 years old, rebuilt 2002
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
209 ft
4 main spans
Daily traffic
20,830
1974 count
Owner
State
State Highway Agency

About this bridge

9 MI RD over I-94 is a steel stringer/multi-beam or girder carrying 9 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 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 20,830 vehicles a day, roughly 3% of them trucks, projected to reach 30,684 by 2020. The structure is 209 ft (63.8 m) long and 62 ft wide.

Carries9 MI RD
CrossesI-94
LocationW Lts of ST Clair Shores
RouteCity Street 2057
Coordinates42.46562, -82.92101
Functional classUrban Minor 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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment7: Better than present minimum criteria
Operating rating107.1 US tons
Inventory rating63.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length209 ft (63.8 m)
Longest span71 ft (21.6 m)
Deck width62 ft (19 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,830 (1974)
Projected traffic30,684 by 2020
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was 9 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 9 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 July 2023.

How much traffic does 9 MI RD over I-94 carry?

About 20,830 vehicles per day (1974 count), of which roughly 3% are trucks.

How long is 9 MI RD over I-94?

The structure is 209 ft (63.8 m) long with a longest span of 71 ft (21.6 m) and a deck 62 ft wide.

Who owns 9 MI RD over I-94?

It is owned by the State Highway Agency.