US Bridges

I-70 over SR60 SR146 & Underwood S

Good

Muskingum County, Ohio · 2.25 M W of JCT SR 93 · Structure no. 6002978

Built
1961
64 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
160 ft
3 main spans
Daily traffic
39,768
2015 count
Owner
State
State Highway Agency

About this bridge

I-70 over SR60 SR146 & Underwood S is a steel continuous stringer/multi-beam or girder carrying I-70 over SR60 SR146 & Underwood S in Muskingum County, Ohio. It was built in 1961, so it is 64 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 39,768 vehicles a day, roughly 26% of them trucks, projected to reach 55,198 by 2035. The structure is 160 ft (48.8 m) long and 90 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-70
CrossesSR60 SR146 & Underwood S
Location2.25 M W of JCT SR 93
RouteInterstate 70
CountyMuskingum County
StateOhio
Coordinates39.94454, -82.00141
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionApril 2024
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 rating92.8 US tons
Inventory rating71.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length160 ft (48.8 m)
Longest span66 ft (20.1 m)
Deck width90 ft (27.5 m)
Roadway width87 ft (26.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic39,768 (2015)
Projected traffic55,198 by 2035
Trucks26%
Lanes on structure4
Traffic directionTwo-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 SR60 SR146 & Underwood S built?

It was built in 1961, making it 64 years old in 2025.

What condition is I-70 over SR60 SR146 & Underwood S 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 April 2024.

How much traffic does I-70 over SR60 SR146 & Underwood S carry?

About 39,768 vehicles per day (2015 count), of which roughly 26% are trucks.

How long is I-70 over SR60 SR146 & Underwood S?

The structure is 160 ft (48.8 m) long with a longest span of 66 ft (20.1 m) and a deck 90 ft wide.

Who owns I-70 over SR60 SR146 & Underwood S?

It is owned by the State Highway Agency.