Structure 11190 · Wayne County, MI

M-10 EB over I-94 Ramp

Carries M-10 EB over I-94 Ramp, In Detroit.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT232 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 5/9 · sets the rating

232 ft end to end, longest span 83 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.

Built1953rebuilt 1995
Length232.3 ft70.8 m
Daily traffic64,700counted 2007
Last inspectedNovember 2024every 12 months

Location

StateMichigan
CountyWayne
LocationIn Detroit
CarriesM-10 EB
CrossesI-94 Ramp
Coordinates42.35807, -83.07611

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length232.3 ft (70.8 m)
Max Span83.0 ft (25.3 m)
Deck Width54.1 ft (16.5 m)
Deck Area1168.2 sq m
Main Spans3
Year Built1953 (reconstructed 1995)

Traffic

Avg Daily Traffic64,700 (2007)
Truck Traffic1%
Lanes On Bridge3
Lanes Under Bridge2

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is on the National Register of Historic Places
Scour CriticalNot applicable
Structure Number000000000011190

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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