US Bridges

Pa Tpk (I-76) over Shafers Run

Fair

Allegheny County, Pennsylvania · Near Dorseyville · Structure no. 000000000002072

Built
1952
73 years old
Condition
Fair
inspected June 2022
Type
Culvert
Concrete
Length
24 ft
1 main span
Daily traffic
33,531
2004 count
Owner
Toll Authority
State Toll Authority

About this bridge

Pa Tpk (I-76) over Shafers Run is a concrete culvert carrying Pa Tpk (I-76) over Shafers Run in Allegheny County, Pennsylvania. It was built in 1952, so it is 73 years old, older than the Pennsylvania average of 54.8 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 33,531 vehicles a day, roughly 19% of them trucks, projected to reach 44,221 by 2030. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesPa Tpk (I-76)
CrossesShafers Run
LocationNear Dorseyville
RouteInterstate 76
CountyAllegheny County
StatePennsylvania
Coordinates40.58788, -79.8819
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span24 ft (7.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33,531 (2004)
Projected traffic44,221 by 2030
Trucks19%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a toll road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
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 Pa Tpk (I-76) over Shafers Run built?

It was built in 1952, making it 73 years old in 2025.

What condition is Pa Tpk (I-76) over Shafers Run 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 June 2022.

How much traffic does Pa Tpk (I-76) over Shafers Run carry?

About 33,531 vehicles per day (2004 count), of which roughly 19% are trucks.

How long is Pa Tpk (I-76) over Shafers Run?

The structure is 24 ft (7.3 m) long with a longest span of 24 ft (7.3 m).

Who owns Pa Tpk (I-76) over Shafers Run?

It is owned by the State Toll Authority.