Structure 1069 · Branch County, MI

Us-12 over South Branch Hog Creek

Carries Us-12 over South Branch Hog Creek, 3.0 Mi East Of Quincy.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 5 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating5/9 · Fair
Substructure7/9 · Good
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT65 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 5/9 · sets the ratingSubstructure 7/9

65 ft end to end, longest span 22 ft. 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.

Built1934rebuilt 1992
Length65.0 ft19.8 m
Daily traffic7,201counted 2007
Last inspectedMay 2023every 24 months

Location

StateMichigan
CountyBranch
Location3.0 Mi East Of Quincy
CarriesUs-12
CrossesSouth Branch Hog Creek
Coordinates41.94865, -84.82757

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length65.0 ft (19.8 m)
Max Span22.0 ft (6.7 m)
Deck Width49.9 ft (15.2 m)
Deck Area301.0 sq m
Main Spans3
Year Built1934 (reconstructed 1992)

Traffic

Avg Daily Traffic7,201 (2007)
Truck Traffic12%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical7 — Countermeasures installed
Structure Number000000000001069

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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