Structure 4201531 · Knox County, OH

US 36. SR 3 & 229 over Kokosing River

Carries US 36. SR 3 & 229 over Kokosing River, 675 E Of Jct SR 229.

Overall conditionFair

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

How ratings work
Deck8/9 · Very Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT311 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 7/9Substructure 6/9 · sets the rating

311 ft end to end, longest span 85 ft: about 4 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.

Built1954rebuilt 2000
Length311.0 ft94.8 m
Daily traffic11,530counted 2015
Last inspectedJune 2024every 12 months

Location

StateOhio
CountyKnox
Location675 E Of Jct SR 229
CarriesUS 36. SR 3 & 229
CrossesKokosing River
Coordinates40.39450, -82.50465

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length311.0 ft (94.8 m)
Max Span85.0 ft (25.9 m)
Deck Width39.0 ft (11.9 m)
Deck Area1128.1 sq m
Main Spans4
Year Built1954 (reconstructed 2000)

Traffic

Avg Daily Traffic11,530 (2015)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number4201531

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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