US Bridges

Pa Tpk (I-76) over Lyons Run

Fair

Westmoreland County, Pennsylvania · West of Pleasant Valley · Structure no. 000000000036814

Built
1952
73 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
50 ft
1 main span
Daily traffic
46,261
2004 count
Owner
Toll Authority
State Toll Authority

About this bridge

Pa Tpk (I-76) over Lyons Run is a steel stringer/multi-beam or girder carrying Pa Tpk (I-76) over Lyons Run in Westmoreland 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 46,261 vehicles a day, roughly 16% of them trucks, projected to reach 48,038 by 2030. The structure is 50 ft (15.2 m) long and 74 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesPa Tpk (I-76)
CrossesLyons Run
LocationWest of Pleasant Valley
RouteInterstate 76
CountyWestmoreland County
StatePennsylvania
Coordinates40.40167, -79.70333
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73 US tons
Inventory rating44 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span46 ft (14 m)
Deck width74 ft (22.6 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic46,261 (2004)
Projected traffic48,038 by 2030
Trucks16%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$511,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Pa Tpk (I-76) over Lyons Run built?

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

What condition is Pa Tpk (I-76) over Lyons 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 2024.

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

About 46,261 vehicles per day (2004 count), of which roughly 16% are trucks.

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

The structure is 50 ft (15.2 m) long with a longest span of 46 ft (14 m) and a deck 74 ft wide.

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

It is owned by the State Toll Authority.