Structure 11844 · Wayne County, MI

Clay AVE over I-75

Carries Clay AVE over I-75, In Detroit.

Overall conditionFair

Set by its lowest-rated component: Superstructure and Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT204 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 6/9 · sets the rating

204 ft end to end, longest span 75 ft: about 3 semi-trucks nose to tail. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built1969rebuilt 2007
Length204.4 ft62.3 m
Daily traffic7,460counted 1978
Last inspectedApril 2024every 24 months

Location

StateMichigan
CountyWayne
LocationIn Detroit
CarriesClay AVE
CrossesI-75
Coordinates42.37837, -83.06261

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length204.4 ft (62.3 m)
Max Span75.1 ft (22.9 m)
Deck Width105.0 ft (32 m)
Deck Area1993.6 sq m
Main Spans4
Year Built1969 (reconstructed 2007)

Traffic

Avg Daily Traffic7,460 (1978)
Truck Traffic3%
Lanes On Bridge6
Lanes Under Bridge8

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000011844

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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