Structure 2765 · Genesee County, MI

Cole Road over Shiawassee River

Carries Cole Road over Shiawassee River, 0.40 Mi NE Of Seymour RD.

Overall conditionGood

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

How ratings work
Deck8/9 · Very Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT36 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 7/9 · sets the rating

36 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 slab bridge.

Built1937rebuilt 2015
Length36.1 ft11 m
Daily traffic108counted 2009
Last inspectedSeptember 2023every 24 months

Location

StateMichigan
CountyGenesee
Location0.40 Mi NE Of Seymour RD
CarriesCole Road
CrossesShiawassee River
Coordinates42.81170, -83.83573

Physical Characteristics

MaterialWood or Timber
DesignSlab
Total Length36.1 ft (11 m)
Max Span33.8 ft (10.3 m)
Deck Width33.8 ft (10.3 m)
Deck Area113.3 sq m
Main Spans1
Year Built1937 (reconstructed 2015)

Traffic

Avg Daily Traffic108 (2009)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical7 — Countermeasures installed
Structure Number000000000002765

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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