Structure 12428 · Wayne County, MI

Antietam AVE over Dequindre Cut Greenway

Carries Antietam AVE over Dequindre Cut Greenway, Betwn Orleans & ST Aubin.

Overall conditionGood

Set by its lowest-rated component: Culvert at 7 of 9.

How ratings work
Culvertsets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT91 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 91 ft across with 2 openings. 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, so those are drawn as typical for a culvert.

Built200719 years old
Length90.6 ft27.6 m
Daily traffic1,433counted 1997
Last inspectedNovember 2023every 24 months

Location

StateMichigan
CountyWayne
LocationBetwn Orleans & ST Aubin
CarriesAntietam AVE
CrossesDequindre Cut Greenway
Coordinates42.34542, -83.03460

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length90.6 ft (27.6 m)
Max Span45.3 ft (13.8 m)
Deck Area251.2 sq m
Main Spans2
Year Built2007

Traffic

Avg Daily Traffic1,433 (1997)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is on the National Register of Historic Places
Scour CriticalNot applicable
Structure Number000000000012428

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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