Structure 2511703 · Franklin County, OH

I-270 C-d Road over Abandoned Rr

Carries I-270 C-d Road over Abandoned Rr, 0.16 Mi W Of SR 3.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT145 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 8/9Substructure 6/9 · sets the rating

145 ft end to end, longest span 54 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.

Built196858 years old
Length145.0 ft44.2 m
Daily traffic—reported figure implausible
Last inspectedNovember 2024every 12 months

Location

StateOhio
CountyFranklin
Location0.16 Mi W Of SR 3
CarriesI-270 C-d Road
CrossesAbandoned Rr
Coordinates40.10111, -82.92843

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length145.0 ft (44.2 m)
Max Span54.1 ft (16.5 m)
Deck Width29.9 ft (9.1 m)
Deck Area402.2 sq m
Main Spans3
Year Built1968

Traffic

Avg Daily Traffic77,510 (1990)
That is about 77,510 vehicles per lane per day — beyond what any U.S. road carries (the busiest freeways run about 25,000–30,000). It is almost certainly a data-entry error in the National Bridge Inventory, so we leave this bridge out of traffic rankings.
Lanes On Bridge1

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical9 — Foundation above flood level
Structure Number2511703

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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