US Bridges

Pa Tpk (I-76) over T-812

Fair

Westmoreland County, Pennsylvania · North of Mt Joy · Structure no. 000000000036851

Built
1991
34 years old, rebuilt 2003
Condition
Fair
inspected July 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
76 ft
1 main span
Daily traffic
34,232
2022 count
Owner
Toll Authority
State Toll Authority

About this bridge

Pa Tpk (I-76) over T-812 is a prestressed concrete stringer/multi-beam or girder carrying Pa Tpk (I-76) over T-812 in Westmoreland County, Pennsylvania. It was built in 1991 and reconstructed in 2003, so it is 34 years old, younger 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 34,232 vehicles a day, roughly 32% of them trucks, projected to reach 42,113 by 2042. The structure is 76 ft (23.2 m) long and 97 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesPa Tpk (I-76)
CrossesT-812
LocationNorth of Mt Joy
RouteInterstate 76
CountyWestmoreland County
StatePennsylvania
Coordinates40.16667, -79.49
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating47 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length76 ft (23.2 m)
Longest span76 ft (23.2 m)
Deck width97 ft (29.7 m)
Roadway width92 ft (28 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34,232 (2022)
Projected traffic42,113 by 2042
Trucks32%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.2 mi (10 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 statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.8 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Pa Tpk (I-76) over T-812 built?

It was built in 1991, making it 34 years old in 2025. It was reconstructed in 2003.

What condition is Pa Tpk (I-76) over T-812 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 July 2022.

How much traffic does Pa Tpk (I-76) over T-812 carry?

About 34,232 vehicles per day (2022 count), of which roughly 32% are trucks.

How long is Pa Tpk (I-76) over T-812?

The structure is 76 ft (23.2 m) long with a longest span of 76 ft (23.2 m) and a deck 97 ft wide.

Who owns Pa Tpk (I-76) over T-812?

It is owned by the State Toll Authority.