Structure 1740 · Clare County, MI

Rodgers Avenue over South Br Tobacco River

Carries Rodgers Avenue over South Br Tobacco River, Sheridan Twp Sec 31 32.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · 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 FT75 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

75 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.

Built199036 years old
Length74.8 ft22.8 m
Daily traffic320counted 2006
Last inspectedAugust 2024every 24 months

Location

StateMichigan
CountyClare
LocationSheridan Twp Sec 31 32
CarriesRodgers Avenue
CrossesSouth Br Tobacco River
Coordinates43.82760, -84.70686

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length74.8 ft (22.8 m)
Max Span73.8 ft (22.5 m)
Deck Width30.8 ft (9.4 m)
Deck Area214.3 sq m
Main Spans1
Year Built1990

Traffic

Avg Daily Traffic320 (2006)
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000001740

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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