US Bridges

I-670 over Road D over Johnstown RD

Good

Franklin County, Ohio · 1.49 MI W of IR270 · Structure no. 2517914

Built
1990
35 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
115 ft
1 main span
Daily traffic
107,260
2001 count
Owner
State
State Highway Agency

About this bridge

I-670 over Road D over Johnstown RD is a steel stringer/multi-beam or girder carrying I-670 over Road D over Johnstown RD in Franklin County, Ohio. It was built in 1990, so it is 35 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 107,260 vehicles a day, roughly 6% of them trucks, projected to reach 148,877 by 2021. The structure is 115 ft (35.1 m) long and 57 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesI-670
CrossesRoad D over Johnstown RD
Location1.49 MI W of IR270
RouteInterstate 670
CountyFranklin County
StateOhio
Coordinates40.00022, -82.92305
Functional classRural 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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.5 US tons
Inventory rating34 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length115 ft (35.1 m)
Longest span109 ft (33.2 m)
Deck width57 ft (17.3 m)
Roadway width54 ft (16.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic107,260 (2001)
Projected traffic148,877 by 2021
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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-670 over Road D over Johnstown RD built?

It was built in 1990, making it 35 years old in 2025.

What condition is I-670 over Road D over Johnstown 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 November 2023.

How much traffic does I-670 over Road D over Johnstown RD carry?

About 107,260 vehicles per day (2001 count), of which roughly 6% are trucks.

How long is I-670 over Road D over Johnstown RD?

The structure is 115 ft (35.1 m) long with a longest span of 109 ft (33.2 m) and a deck 57 ft wide.

Who owns I-670 over Road D over Johnstown RD?

It is owned by the State Highway Agency.