Structure 13610 · Oakland County, MI

Wattles Road over Rouge River

Carries Wattles Road over Rouge River, 0.4 Mi E Of Adams Road.

Overall conditionGood

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

How ratings work
Culvertsets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT28 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 28 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.

Built1957rebuilt 2016
Length27.6 ft8.4 m
Daily traffic8,500counted 1983
Last inspectedApril 2023every 24 months

Location

StateMichigan
CountyOakland
Location0.4 Mi E Of Adams Road
CarriesWattles Road
CrossesRouge River
Coordinates42.57596, -83.20030

Physical Characteristics

MaterialSteel
DesignCulvert
Total Length27.6 ft (8.4 m)
Max Span12.8 ft (3.9 m)
Deck Area92.4 sq m
Main Spans2
Year Built1957 (reconstructed 2016)

Traffic

Avg Daily Traffic8,500 (1983)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000013610

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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