US Bridges

State Fair Ave over I-75

Fair

Wayne County, Michigan · In Detroit · Structure no. 000000000011849

Built
1967
58 years old, rebuilt 1997
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
226 ft
4 main spans
Daily traffic
8,120
2010 count
Owner
State
State Highway Agency

About this bridge

State Fair Ave over I-75 is a steel stringer/multi-beam or girder carrying State Fair Ave over I-75 in Wayne County, Michigan. It was built in 1967 and reconstructed in 1997, 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 8,120 vehicles a day, roughly 6% of them trucks, projected to reach 8,932 by 2025. The structure is 226 ft (68.8 m) long and 71 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesState Fair Ave
CrossesI-75
LocationIn Detroit
RouteCity Street 2000
CountyWayne County
StateMichigan
Coordinates42.43976, -83.09477
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95 US tons
Inventory rating56.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length226 ft (68.8 m)
Longest span92 ft (28.1 m)
Deck width71 ft (21.5 m)
Roadway width51 ft (15.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,120 (2010)
Projected traffic8,932 by 2025
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
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 State Fair Ave over I-75 built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 1997.

What condition is State Fair Ave over I-75 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 April 2024.

How much traffic does State Fair Ave over I-75 carry?

About 8,120 vehicles per day (2010 count), of which roughly 6% are trucks.

How long is State Fair Ave over I-75?

The structure is 226 ft (68.8 m) long with a longest span of 92 ft (28.1 m) and a deck 71 ft wide.

Who owns State Fair Ave over I-75?

It is owned by the State Highway Agency.