Structure 4639014 · Logan County, OH

CR 97 over South Fork Miami River

Carries CR 97 over South Fork Miami River, .51 M N Of CR 96.

Overall conditionGood

Set by its lowest-rated component: Superstructure at 8 of 9.

How ratings work
Deck9/9 · Excellent
Superstructuresets the rating8/9 · Very Good
Substructure9/9 · Excellent
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT93 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 9/9Superstructure 8/9 · sets the ratingSubstructure 9/9

93 ft end to end, longest span 35 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 multi-beam bridge.

Built1972rebuilt 2010
Length92.8 ft28.3 m
Daily traffic137counted 2015
Last inspectedNovember 2023every 24 months

Location

StateOhio
CountyLogan
Location.51 M N Of CR 96
CarriesCR 97
CrossesSouth Fork Miami River
Coordinates40.49500, -83.78000

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length92.8 ft (28.3 m)
Max Span35.1 ft (10.7 m)
Deck Width28.5 ft (8.7 m)
Deck Area246.2 sq m
Main Spans3
Year Built1972 (reconstructed 2010)

Traffic

Avg Daily Traffic137 (2015)
Truck Traffic7%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number4639014

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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