US Bridges

I-70 over Over Harper RD

Good

Franklin County, Ohio · 0.24 MI E. of I-670 · Structure no. 2504510

Built
1973
52 years old, rebuilt 2019
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
132 ft
3 main spans
Daily traffic
28,811
2015 count
Owner
State
State Highway Agency

About this bridge

I-70 over Over Harper RD is a steel continuous stringer/multi-beam or girder carrying I-70 over Over Harper RD in Franklin County, Ohio. It was built in 1973 and reconstructed in 2019, so it is 52 years old, older than the Ohio average of 47.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 28,811 vehicles a day, roughly 15% of them trucks, projected to reach 39,990 by 2035. The structure is 132 ft (40.3 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-70
CrossesOver Harper RD
Location0.24 MI E. of I-670
RouteInterstate 70
CountyFranklin County
StateOhio
Coordinates39.96666, -83.05938
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length132 ft (40.3 m)
Longest span54 ft (16.5 m)
Deck width43 ft (13 m)
Roadway width41 ft (12.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,811 (2015)
Projected traffic39,990 by 2035
Trucks15%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-70 over Over Harper RD built?

It was built in 1973, making it 52 years old in 2025. It was reconstructed in 2019.

What condition is I-70 over Over Harper RD in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.

How much traffic does I-70 over Over Harper RD carry?

About 28,811 vehicles per day (2015 count), of which roughly 15% are trucks.

How long is I-70 over Over Harper RD?

The structure is 132 ft (40.3 m) long with a longest span of 54 ft (16.5 m) and a deck 43 ft wide.

Who owns I-70 over Over Harper RD?

It is owned by the State Highway Agency.