Structure 11194 · Wayne County, MI

I-94WB Rmp To M-10 over I-94 EB & M-10 NB

Carries I-94WB Rmp To M-10 over I-94 EB & M-10 NB, In Detroit Ramp F-c.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,158 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

1,158 ft end to end, longest span 130 ft: about 3.2 football fields. 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 1996
Length1158.1 ft353 m
Daily traffic10,600counted 1995
Last inspectedSeptember 2024every 24 months

Location

StateMichigan
CountyWayne
LocationIn Detroit Ramp F-c
CarriesI-94WB Rmp To M-10
CrossesI-94 EB & M-10 NB
Coordinates42.36009, -83.07487

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length1158.1 ft (353 m)
Max Span129.9 ft (39.6 m)
Deck Width42.0 ft (12.8 m)
Deck Area4518.4 sq m
Main Spans11
Year Built1953 (reconstructed 1996)

Traffic

Avg Daily Traffic10,600 (1995)
Truck Traffic4%
Lanes On Bridge2
Lanes Under Bridge10

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is on the National Register of Historic Places
Scour CriticalNot applicable
Structure Number000000000011194

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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