US Bridges

Northwest RD over I80 Ohio Tpk

FairClosed to traffic

Sandusky County, Ohio · 14.4MI East of Exit 6 · Structure no. 7229984

Built
1954
71 years old, rebuilt 1989
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
194 ft
2 main spans
Daily traffic
30,000
1990 count
Owner
Toll Authority
State Toll Authority

About this bridge

Northwest RD over I80 Ohio Tpk is a steel continuous stringer/multi-beam or girder carrying Northwest RD over I80 Ohio Tpk in Sandusky 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: closed to all traffic.

It carries about 30,000 vehicles a day, roughly 27% of them trucks, projected to reach 59,434 by 2010. The structure is 194 ft (59.1 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesNorthwest RD
CrossesI80 Ohio Tpk
Location14.4MI East of Exit 6
RouteCounty Highway 312
CountySandusky County
StateOhio
Coordinates41.35028, -82.84403
Functional classRural Minor 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusClosed to all traffic
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry0: Immediate repair necessary to put back in service
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.3 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadH 10
Structure length194 ft (59.1 m)
Longest span66 ft (20.1 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30,000 (1990)
Projected traffic59,434 by 2010
Trucks27%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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 Northwest RD over I80 Ohio Tpk built?

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

What condition is Northwest RD 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 April 2024.

How much traffic does Northwest RD over I80 Ohio Tpk carry?

About 30,000 vehicles per day (1990 count), of which roughly 27% are trucks.

How long is Northwest RD over I80 Ohio Tpk?

The structure is 194 ft (59.1 m) long with a longest span of 66 ft (20.1 m) and a deck 30 ft wide.

Who owns Northwest RD over I80 Ohio Tpk?

It is owned by the State Toll Authority.