Structure 6100872 · Noble County, OH

Ir 77 over SR 146

Carries Ir 77 over SR 146, 16.67m N Wash. Co. Line.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT112 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

112 ft end to end, longest span 43 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 slab bridge.

Built196858 years old
Length111.9 ft34.1 m
Daily traffic9,439counted 2015
Last inspectedSeptember 2024every 12 months

Location

StateOhio
CountyNoble
Location16.67m N Wash. Co. Line
CarriesIr 77
CrossesSR 146
Coordinates39.86472, -81.54008

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length111.9 ft (34.1 m)
Max Span42.7 ft (13 m)
Deck Width42.3 ft (12.9 m)
Deck Area439.9 sq m
Main Spans3
Year Built1968

Traffic

Avg Daily Traffic9,439 (2015)
Truck Traffic24%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number6100872

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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