Structure 2511746 · Franklin County, OH

Cr377 Johnstown RD over Ir-270 & Ir-670 Ramp E

Carries Cr377 Johnstown RD over Ir-270 & Ir-670 Ramp E, 4.02 Mi N Of Sr16.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT374 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

374 ft end to end, longest span 115 ft: about 5 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.

Built197353 years old
Length373.7 ft113.9 m
Daily traffic8,280counted 2015
Last inspectedNovember 2024every 12 months

Location

StateOhio
CountyFranklin
Location4.02 Mi N Of Sr16
CarriesCr377 Johnstown RD
CrossesIr-270 & Ir-670 Ramp E
Coordinates40.01093, -82.90142

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length373.7 ft (113.9 m)
Max Span115.2 ft (35.1 m)
Deck Width45.9 ft (14 m)
Deck Area1594.6 sq m
Main Spans4
Year Built1973

Traffic

Avg Daily Traffic8,280 (2015)
Truck Traffic3%
Lanes On Bridge2
Lanes Under Bridge9

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number2511746

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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