Structure 11548 · Wayne County, MI

WB To SB Turn Rdwy over 3rd Level Turn Rdwy

Carries WB To SB Turn Rdwy over 3rd Level Turn Rdwy, In Detroit.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,203 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

1,203 ft end to end, longest span 105 ft: about 3.3 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.

Built197254 years old
Length1203.1 ft366.7 m
Daily traffic12,580counted 1982
Last inspectedAugust 2023every 24 months

Location

StateMichigan
CountyWayne
LocationIn Detroit
CarriesWB To SB Turn Rdwy
Crosses3rd Level Turn Rdwy
Coordinates42.37906, -83.21645

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1203.1 ft (366.7 m)
Max Span105.0 ft (32 m)
Deck Width39.4 ft (12 m)
Deck Area4400.4 sq m
Main Spans17
Year Built1972

Traffic

Avg Daily Traffic12,580 (1982)
Truck Traffic5%
Lanes On Bridge2
Lanes Under Bridge3

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000011548

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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