Structure 4200543 · Knox County, OH

SR 13 over Delano Run

Carries SR 13 over Delano Run, 1.6 M S Of Jct SR 586.

Overall conditionFair

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

How ratings work
Deck8/9 · Very Good
Superstructure8/9 · Very Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT53 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 6/9 · sets the rating

53 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.

Built1941rebuilt 1983
Length53.1 ft16.2 m
Daily traffic4,024counted 2015
Last inspectedMay 2024every 12 months

Location

StateOhio
CountyKnox
Location1.6 M S Of Jct SR 586
CarriesSR 13
CrossesDelano Run
Coordinates40.36019, -82.47807

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length53.1 ft (16.2 m)
Max Span49.9 ft (15.2 m)
Deck Width36.1 ft (11 m)
Deck Area178.2 sq m
Main Spans1
Year Built1941 (reconstructed 1983)

Traffic

Avg Daily Traffic4,024 (2015)
Truck Traffic11%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number4200543

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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