US Bridges

County Line Rd. over Mahoning River

Fair

Mahoning County, Ohio · 0.1MI.W of N.E. River Rd. · Structure no. 5050065

Built
1940
85 years old, rebuilt 1993
Condition
Fair
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
138 ft
3 main spans
Daily traffic
1,029
2015 count
Owner
County
County Highway Agency

About this bridge

County Line Rd. over Mahoning River is a prestressed concrete box beam or girders - multiple carrying County Line Rd. over Mahoning River in Mahoning County, Ohio. It was built in 1940 and reconstructed in 1993, so it is 85 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.

It carries about 1,029 vehicles a day, roughly 7% of them trucks, projected to reach 1,428 by 2035. The structure is 138 ft (42.1 m) long and 40 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesCounty Line Rd.
CrossesMahoning River
Location0.1MI.W of N.E. River Rd.
RouteCounty Highway 4
CountyMahoning County
StateOhio
Coordinates41.13417, -80.96783
Functional classRural Local

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.4 US tons
Inventory rating54.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length138 ft (42.1 m)
Longest span46 ft (14 m)
Deck width40 ft (12.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,029 (2015)
Projected traffic1,428 by 2035
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$150,000
NavigationNo navigation control on waterway

Frequently asked questions

When was County Line Rd. over Mahoning River built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1993.

What condition is County Line Rd. over Mahoning River 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 September 2024.

How much traffic does County Line Rd. over Mahoning River carry?

About 1,029 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is County Line Rd. over Mahoning River?

The structure is 138 ft (42.1 m) long with a longest span of 46 ft (14 m) and a deck 40 ft wide.

Who owns County Line Rd. over Mahoning River?

It is owned by the County Highway Agency.