Structure 2514435 · Franklin County, OH

SB I-270 over Big Walnut/noe Bixby RD

Carries SB I-270 over Big Walnut/noe Bixby RD, 0.83 Mi S Of Ir70.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall3/9 · Serious
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT459 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 5/9 · sets the rating

459 ft end to end, longest span 122 ft: about 6 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.

Built196858 years old
Length459.0 ft139.9 m
Daily traffic38,298counted 2015
Last inspectedNovember 2024every 12 months

Location

StateOhio
CountyFranklin
Location0.83 Mi S Of Ir70
CarriesSB I-270
CrossesBig Walnut/noe Bixby RD
Coordinates39.92721, -82.86467

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length459.0 ft (139.9 m)
Max Span122.0 ft (37.2 m)
Deck Width47.9 ft (14.6 m)
Deck Area2042.5 sq m
Main Spans4
Year Built1968

Traffic

Avg Daily Traffic38,298 (2015)
Truck Traffic13%
Lanes On Bridge3
Lanes Under Bridge2

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number2514435

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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