Structure 11871 · Wayne County, MI

Davison Rmp To 75 over Dequindre AVE

Carries Davison Rmp To 75 over Dequindre AVE, In Detroit Over Dequindre.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT351 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

351 ft end to end, longest span 138 ft: about 5 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.

Built197155 years old
Length351.0 ft107 m
Daily traffic5,930counted 2020
Last inspectedApril 2023every 24 months

Location

StateMichigan
CountyWayne
LocationIn Detroit Over Dequindre
CarriesDavison Rmp To 75
CrossesDequindre AVE
Coordinates42.40970, -83.07760

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length351.0 ft (107 m)
Max Span137.8 ft (42 m)
Deck Width39.7 ft (12.1 m)
Deck Area1294.7 sq m
Main Spans4
Year Built1971

Traffic

Avg Daily Traffic5,930 (2020)
Truck Traffic4%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000011871

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.

Nearby Bridges