US Bridges

SR 51 over I80 Ohio Tpk

Fair

Ottawa County, Ohio · 9.2MI East of Exit 71 · Structure no. 6229905

Built
1954
71 years old, rebuilt 1996
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
204 ft
2 main spans
Daily traffic
2,554
2015 count
Owner
Toll Authority
State Toll Authority

About this bridge

SR 51 over I80 Ohio Tpk is a steel continuous stringer/multi-beam or girder carrying SR 51 over I80 Ohio Tpk in Ottawa County, Ohio. It was built in 1954 and reconstructed in 1996, 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 2,554 vehicles a day, roughly 13% of them trucks, projected to reach 61,376 by 2035. The structure is 204 ft (62.2 m) long and 51 ft wide.

Location

Open in Google Maps
CarriesSR 51
CrossesI80 Ohio Tpk
Location9.2MI East of Exit 71
RouteState Highway 51
CountyOttawa County
StateOhio
Coordinates41.4654, -83.29966
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
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 inspectionJune 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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating103.6 US tons
Inventory rating64.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20 + Mod
Structure length204 ft (62.2 m)
Longest span69 ft (21 m)
Deck width51 ft (15.5 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,554 (2015)
Projected traffic61,376 by 2035
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 SR 51 over I80 Ohio Tpk built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1996.

What condition is SR 51 over I80 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 June 2024.

How much traffic does SR 51 over I80 Ohio Tpk carry?

About 2,554 vehicles per day (2015 count), of which roughly 13% are trucks.

How long is SR 51 over I80 Ohio Tpk?

The structure is 204 ft (62.2 m) long with a longest span of 69 ft (21 m) and a deck 51 ft wide.

Who owns SR 51 over I80 Ohio Tpk?

It is owned by the State Toll Authority.