US Bridges

SR170 over I76 Ohio Tpk

Fair

Mahoning County, Ohio · 1.7MI East of Exit 17 · Structure no. 5029945

Built
1954
71 years old, rebuilt 1989
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
283 ft
3 main spans
Daily traffic
2,226
2015 count
Owner
Toll Authority
State Toll Authority

About this bridge

SR170 over I76 Ohio Tpk is a steel continuous stringer/multi-beam or girder carrying SR170 over I76 Ohio Tpk in Mahoning County, Ohio. It was built in 1954 and reconstructed in 1989, so it is 71 years old, older than the Ohio average of 47.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,226 vehicles a day, roughly 15% of them trucks, projected to reach 34,772 by 2035. The structure is 283 ft (86.3 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSR170
CrossesI76 Ohio Tpk
Location1.7MI East of Exit 17
RouteState Highway 170
CountyMahoning County
StateOhio
Coordinates40.9174, -80.53298
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85.3 US tons
Inventory rating51 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+2 approach)
Design loadH 15
Structure length283 ft (86.3 m)
Longest span73 ft (22.3 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,226 (2015)
Projected traffic34,772 by 2035
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
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 SR170 over I76 Ohio Tpk built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1989.

What condition is SR170 over I76 Ohio Tpk in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2024.

How much traffic does SR170 over I76 Ohio Tpk carry?

About 2,226 vehicles per day (2015 count), of which roughly 15% are trucks.

How long is SR170 over I76 Ohio Tpk?

The structure is 283 ft (86.3 m) long with a longest span of 73 ft (22.3 m) and a deck 33 ft wide.

Who owns SR170 over I76 Ohio Tpk?

It is owned by the State Toll Authority.