US Bridges

SR 0008 Lr 72 over Pa Tpk (I-76)

Fair

Allegheny County, Pennsylvania · Butler Valley Interchange · Structure no. 000000000002066

Built
1952
73 years old, rebuilt 1995
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
121 ft
1 main span
Daily traffic
27,137
2024 count
Owner
Toll Authority
State Toll Authority

About this bridge

SR 0008 Lr 72 over Pa Tpk (I-76) is a steel stringer/multi-beam or girder carrying SR 0008 Lr 72 over Pa Tpk (I-76) in Allegheny County, Pennsylvania. It was built in 1952 and reconstructed in 1995, 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 5 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 27,137 vehicles a day, roughly 5% of them trucks, projected to reach 26,350 by 2030. The structure is 121 ft (36.9 m) long and 73 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSR 0008 Lr 72
CrossesPa Tpk (I-76)
LocationButler Valley Interchange
RouteState Highway 8
CountyAllegheny County
StatePennsylvania
Coordinates40.60903, -79.94722
Functional classUrban Other Principal Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating102 US tons
Inventory rating61 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length121 ft (36.9 m)
Longest span115 ft (35.1 m)
Deck width73 ft (22.3 m)
Roadway width70 ft (21.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,137 (2024)
Projected traffic26,350 by 2030
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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$1 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 0008 Lr 72 over Pa Tpk (I-76) built?

It was built in 1952, making it 73 years old in 2025. It was reconstructed in 1995.

What condition is SR 0008 Lr 72 over Pa Tpk (I-76) 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 April 2024.

How much traffic does SR 0008 Lr 72 over Pa Tpk (I-76) carry?

About 27,137 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is SR 0008 Lr 72 over Pa Tpk (I-76)?

The structure is 121 ft (36.9 m) long with a longest span of 115 ft (35.1 m) and a deck 73 ft wide.

Who owns SR 0008 Lr 72 over Pa Tpk (I-76)?

It is owned by the State Toll Authority.