Structure 1120 · Branch County, MI

Girard Road over South Br Hog Creek

Carries Girard Road over South Br Hog Creek, Girard Twp Sec 14-23.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT60 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

60 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.

Built196660 years old
Length59.7 ft18.2 m
Daily traffic550counted 2004
Last inspectedOctober 2024every 24 months

Location

StateMichigan
CountyBranch
LocationGirard Twp Sec 14-23
CarriesGirard Road
CrossesSouth Br Hog Creek
Coordinates42.02931, -84.97128

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length59.7 ft (18.2 m)
Max Span58.7 ft (17.9 m)
Deck Width30.5 ft (9.3 m)
Deck Area169.3 sq m
Main Spans1
Year Built1966

Traffic

Avg Daily Traffic550 (2004)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number000000000001120

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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