Structure 8207 · Oakland County, MI

Gunn over Paint Creek

Carries Gunn over Paint Creek, Bet Adams And Orion.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 3 of 9.

How ratings work
Deck4/9 · Poor
Superstructure4/9 · Poor
Substructuresets the rating3/9 · Serious
Channelnot part of overall4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT35 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9Superstructure 4/9Substructure 3/9 · sets the rating

35 ft end to end. 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 box-beam bridge.

Built195868 years old
Length34.8 ft10.6 m
Daily traffic1,750counted 2015
Last inspectedMarch 2024every 12 months

Location

StateMichigan
CountyOakland
LocationBet Adams And Orion
CarriesGunn
CrossesPaint Creek
Coordinates42.73999, -83.16943

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length34.8 ft (10.6 m)
Max Span28.9 ft (8.8 m)
Deck Width27.9 ft (8.5 m)
Deck Area90.1 sq m
Main Spans1
Year Built1958

Traffic

Avg Daily Traffic1,750 (2015)
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000000008207

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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