Structure 3400514 · Harrison County, OH

Usr 22 over Piedmont Dam Spillway

Carries Usr 22 over Piedmont Dam Spillway, 1.77 Mi. E. Of Jct SR 800.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure8/9 · Very Good
Substructure7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT165 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 8/9Substructure 7/9

165 ft end to end, longest span 70 ft: about 2 semi-trucks nose to tail. Lengths and the semi-truck 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.

Built1937rebuilt 1996
Length165.0 ft50.3 m
Daily traffic2,503counted 2015
Last inspectedJanuary 2024every 12 months

Location

StateOhio
CountyHarrison
Location1.77 Mi. E. Of Jct SR 800
CarriesUsr 22
CrossesPiedmont Dam Spillway
Coordinates40.19252, -81.21768

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length165.0 ft (50.3 m)
Max Span69.6 ft (21.2 m)
Deck Width39.4 ft (12 m)
Deck Area603.6 sq m
Main Spans3
Year Built1937 (reconstructed 1996)

Traffic

Avg Daily Traffic2,503 (2015)
Truck Traffic24%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number3400514

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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