US Bridges

Middlesexmercer RD over Little Neshannock Creek

Good

Mercer County, Pennsylvania · Lackawannock Township · Structure no. 000000000053935

Built
2017
8 years old
Condition
Good
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
74 ft
1 main span
Daily traffic
1,409
2024 count
Owner
State
State Highway Agency

About this bridge

Middlesexmercer RD over Little Neshannock Creek is a prestressed concrete box beam or girders - multiple carrying Middlesexmercer RD over Little Neshannock Creek in Mercer County, Pennsylvania. It was built in 2017, so it is 8 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 1,409 vehicles a day, roughly 12% of them trucks, projected to reach 2,348 by 2037. The structure is 74 ft (22.6 m) long and 34 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesMiddlesexmercer RD
CrossesLittle Neshannock Creek
LocationLackawannock Township
RouteState Highway 318
Coordinates41.19216, -80.38928
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.3 US tons
Inventory rating53.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length74 ft (22.6 m)
Longest span70 ft (21.3 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,409 (2024)
Projected traffic2,348 by 2037
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byPrivate (other than railroad)
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 Middlesexmercer RD over Little Neshannock Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is Middlesexmercer RD over Little Neshannock Creek 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 September 2024.

How much traffic does Middlesexmercer RD over Little Neshannock Creek carry?

About 1,409 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is Middlesexmercer RD over Little Neshannock Creek?

The structure is 74 ft (22.6 m) long with a longest span of 70 ft (21.3 m) and a deck 34 ft wide.

Who owns Middlesexmercer RD over Little Neshannock Creek?

It is owned by the State Highway Agency and maintained by the Private (other than railroad).