Structure 11398 · Wayne County, MI

Lafayette BLVD over M-10

Carries Lafayette BLVD over M-10, In Detroit.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT117 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 6/9

117 ft end to end, longest span 58 ft. Lengths and the car 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.

Built1952rebuilt 1997
Length116.8 ft35.6 m
Daily traffic12,860counted 1978
Last inspectedJune 2024every 24 months

Location

StateMichigan
CountyWayne
LocationIn Detroit
CarriesLafayette BLVD
CrossesM-10
Coordinates42.32789, -83.05666

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length116.8 ft (35.6 m)
Max Span58.4 ft (17.8 m)
Deck Width81.7 ft (24.9 m)
Deck Area886.4 sq m
Main Spans2
Year Built1952 (reconstructed 1997)

Traffic

Avg Daily Traffic12,860 (1978)
Truck Traffic2%
Lanes On Bridge4
Lanes Under Bridge6

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000011398

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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