US Bridges

SR 318 Hubb-W Mid over Shenango River Trib

Good

Mercer County, Pennsylvania · Shenango Twp · Structure no. 000000000048789

Built
2014
11 years old
Condition
Good
inspected February 2021
Type
Channel Beam
Concrete
Length
24 ft
1 main span
Daily traffic
3,392
2024 count
Owner
State
State Highway Agency

About this bridge

SR 318 Hubb-W Mid over Shenango River Trib is a concrete channel beam carrying SR 318 Hubb-W Mid over Shenango River Trib in Mercer County, Pennsylvania. It was built in 2014, so it is 11 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 3,392 vehicles a day, roughly 4% of them trucks, projected to reach 3,697 by 2032. The structure is 24 ft (7.3 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSR 318 Hubb-W Mid
CrossesShenango River Trib
LocationShenango Twp
RouteState Highway 318
CountyMercer County
StatePennsylvania
Coordinates41.16917, -80.49569
Functional classRural Major 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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.3 US tons
Inventory rating60.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length24 ft (7.3 m)
Longest span22 ft (6.7 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,392 (2024)
Projected traffic3,697 by 2032
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 318 Hubb-W Mid over Shenango River Trib built?

It was built in 2014, making it 11 years old in 2025.

What condition is SR 318 Hubb-W Mid over Shenango River Trib 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 February 2021.

How much traffic does SR 318 Hubb-W Mid over Shenango River Trib carry?

About 3,392 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is SR 318 Hubb-W Mid over Shenango River Trib?

The structure is 24 ft (7.3 m) long with a longest span of 22 ft (6.7 m) and a deck 33 ft wide.

Who owns SR 318 Hubb-W Mid over Shenango River Trib?

It is owned by the State Highway Agency.