Structure 2507803 · Franklin County, OH

I-71 over Ns Rr Ir 670 & Rampb C F

Carries I-71 over Ns Rr Ir 670 & Rampb C F, 0.45 Mi N Of I670.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT624 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

624 ft end to end, longest span 236 ft: about 1.7 football fields. 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.

Built196165 years old
Length624.3 ft190.3 m
Daily traffic111,799counted 2015
Last inspectedJuly 2023every 24 months

Location

StateOhio
CountyFranklin
Location0.45 Mi N Of I670
CarriesI-71
CrossesNs Rr Ir 670 & Rampb C F
Coordinates39.97848, -82.98389

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length624.3 ft (190.3 m)
Max Span235.9 ft (71.9 m)
Deck Width124.0 ft (37.8 m)
Deck Area7193.3 sq m
Main Spans3
Year Built1961

Traffic

Avg Daily Traffic111,799 (2015)
Truck Traffic15%
Lanes On Bridge8
Lanes Under Bridge9

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number2507803

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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