Structure 2174 · Dickinson County, MI

M-95 over W Br Sturgeon River

Carries M-95 over W Br Sturgeon River, 6.8 Mi S Of M-69.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT31 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

31 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 rigid-frame bridge.

Built193591 years old
Length30.8 ft9.4 m
Daily traffic3,033counted 2007
Last inspectedAugust 2023every 24 months

Location

StateMichigan
CountyDickinson
Location6.8 Mi S Of M-69
CarriesM-95
CrossesW Br Sturgeon River
Coordinates45.99555, -88.05860

Physical Characteristics

MaterialConcrete
DesignFrame
Total Length30.8 ft (9.4 m)
Max Span30.8 ft (9.4 m)
Deck Width57.1 ft (17.4 m)
Deck Area163.6 sq m
Main Spans1
Year Built1935

Traffic

Avg Daily Traffic3,033 (2007)
Truck Traffic11%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000002174

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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