US Bridges

SR 158 Mercer Road over Over Neshannock Creek TR

Good

Mercer County, Pennsylvania · Wilmington Township · Structure no. 000000000025820

Built
1984
41 years old
Condition
Good
inspected April 2024
Type
Culvert
Steel
Length
22 ft
1 main span
Daily traffic
1,572
2024 count
Owner
State
State Highway Agency

About this bridge

SR 158 Mercer Road over Over Neshannock Creek TR is a steel culvert carrying SR 158 Mercer Road over Over Neshannock Creek TR in Mercer County, Pennsylvania. It was built in 1984, so it is 41 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,572 vehicles a day, roughly 8% of them trucks, projected to reach 1,888 by 2032. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSR 158 Mercer Road
CrossesOver Neshannock Creek TR
LocationWilmington Township
RouteState Highway 158
CountyMercer County
StatePennsylvania
Coordinates41.15231, -80.30809
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span22 ft (6.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,572 (2024)
Projected traffic1,888 by 2032
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 158 Mercer Road over Over Neshannock Creek TR built?

It was built in 1984, making it 41 years old in 2025.

What condition is SR 158 Mercer Road over Over Neshannock Creek TR 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 April 2024.

How much traffic does SR 158 Mercer Road over Over Neshannock Creek TR carry?

About 1,572 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is SR 158 Mercer Road over Over Neshannock Creek TR?

The structure is 22 ft (6.7 m) long with a longest span of 22 ft (6.7 m).

Who owns SR 158 Mercer Road over Over Neshannock Creek TR?

It is owned by the State Highway Agency.