Structure 10444 · Tuscola County, MI

M-25 over Wiscoggin Creek

Carries M-25 over Wiscoggin Creek, 0.1 Mi S Of Huron Co Line.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure8/9 · Very Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT85 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 8/9

85 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 multi-beam bridge.

Built200620 years old
Length85.0 ft25.9 m
Daily traffic5,044counted 2007
Last inspectedJune 2024every 24 months

Location

StateMichigan
CountyTuscola
Location0.1 Mi S Of Huron Co Line
CarriesM-25
CrossesWiscoggin Creek
Coordinates43.66580, -83.46655

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length85.0 ft (25.9 m)
Max Span81.0 ft (24.7 m)
Deck Width47.2 ft (14.4 m)
Deck Area373.0 sq m
Main Spans1
Year Built2006

Traffic

Avg Daily Traffic5,044 (2007)
Truck Traffic6%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000000010444

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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