US Bridges

SR 318 Main ST over Over I-376 Nb/Sb Beaver

Good

Mercer County, Pennsylvania · Shenango Township · Structure no. 000000000070400

Built
2024
1 years old
Condition
Good
inspected August 2024
Type
Girder and Floorbeam System
Steel Continuous
Length
207 ft
2 main spans
Daily traffic
1,813
2024 count
Owner
State
State Highway Agency

About this bridge

SR 318 Main ST over Over I-376 Nb/Sb Beaver is a steel continuous girder and floorbeam system carrying SR 318 Main ST over Over I-376 Nb/Sb Beaver in Mercer County, Pennsylvania. It was built in 2024, so it is 1 years old, younger than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,813 vehicles a day, roughly 15% of them trucks, projected to reach 3,346 by 2032. The structure is 207 ft (63.1 m) long and 38 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesSR 318 Main ST
CrossesOver I-376 Nb/Sb Beaver
LocationShenango Township
RouteState Highway 318
CountyMercer County
StatePennsylvania
Coordinates41.17812, -80.44011
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating40 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length207 ft (63.1 m)
Longest span102 ft (31.1 m)
Deck width38 ft (11.7 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,813 (2024)
Projected traffic3,346 by 2032
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 318 Main ST over Over I-376 Nb/Sb Beaver built?

It was built in 2024, making it 1 years old in 2025.

What condition is SR 318 Main ST over Over I-376 Nb/Sb Beaver 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 August 2024.

How much traffic does SR 318 Main ST over Over I-376 Nb/Sb Beaver carry?

About 1,813 vehicles per day (2024 count), of which roughly 15% are trucks.

How long is SR 318 Main ST over Over I-376 Nb/Sb Beaver?

The structure is 207 ft (63.1 m) long with a longest span of 102 ft (31.1 m) and a deck 38 ft wide.

Who owns SR 318 Main ST over Over I-376 Nb/Sb Beaver?

It is owned by the State Highway Agency.