Structure 11105 · Wayne County, MI

I-94 EB over Rouge River

Carries I-94 EB over Rouge River, S Lts Of Dearborn.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT400 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

400 ft end to end, longest span 79 ft: about 6 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.

Built1943rebuilt 1997
Length399.9 ft121.9 m
Daily traffic49,253counted 2007
Last inspectedJuly 2023every 24 months

Location

StateMichigan
CountyWayne
LocationS Lts Of Dearborn
CarriesI-94 EB
CrossesRouge River
Coordinates42.29536, -83.18727

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length399.9 ft (121.9 m)
Max Span78.7 ft (24 m)
Deck Width63.3 ft (19.3 m)
Deck Area2352.7 sq m
Main Spans7
Year Built1943 (reconstructed 1997)

Traffic

Avg Daily Traffic49,253 (2007)
Truck Traffic16%
Lanes On Bridge3

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000011105

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