US Bridges

Pa Tpk Ramps B&c over Pa Tpk (I-76)

Fair

Allegheny County, Pennsylvania · Pittsburgh Interchange · Structure no. 000000000002105

Built
1952
73 years old, rebuilt 1992
Condition
Fair
inspected June 2024
Type
Girder and Floorbeam System
Steel
Length
98 ft
1 main span
Daily traffic
34,209
1993 count
Owner
Toll Authority
State Toll Authority

About this bridge

Pa Tpk Ramps B&c over Pa Tpk (I-76) is a steel girder and floorbeam system carrying Pa Tpk Ramps B&c over Pa Tpk (I-76) in Allegheny County, Pennsylvania. It was built in 1952 and reconstructed in 1992, 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 34,209 vehicles a day, roughly 7% of them trucks, projected to reach 53,189 by 2030. The structure is 98 ft (29.9 m) long and 42 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesPa Tpk Ramps B&c
CrossesPa Tpk (I-76)
LocationPittsburgh Interchange
RouteInterstate 76
CountyAllegheny County
StatePennsylvania
Coordinates40.43601, -79.74927
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 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 geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53 US tons
Inventory rating32 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length98 ft (29.9 m)
Longest span93 ft (28.3 m)
Deck width42 ft (12.9 m)
Roadway width36 ft (10.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34,209 (1993)
Projected traffic53,189 by 2030
Trucks7%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a toll 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 proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$416,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Pa Tpk Ramps B&c over Pa Tpk (I-76) built?

It was built in 1952, making it 73 years old in 2025. It was reconstructed in 1992.

What condition is Pa Tpk Ramps B&c 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 June 2024.

How much traffic does Pa Tpk Ramps B&c over Pa Tpk (I-76) carry?

About 34,209 vehicles per day (1993 count), of which roughly 7% are trucks.

How long is Pa Tpk Ramps B&c over Pa Tpk (I-76)?

The structure is 98 ft (29.9 m) long with a longest span of 93 ft (28.3 m) and a deck 42 ft wide.

Who owns Pa Tpk Ramps B&c over Pa Tpk (I-76)?

It is owned by the State Toll Authority.