US Bridges

Pa Tpk (ramp 3&3A) over SR 0030

Fair

Westmoreland County, Pennsylvania · Irwin Interchange · Structure no. 000000000036822

Built
1939
86 years old
Condition
Fair
inspected July 2024
Type
Frame
Concrete
Length
80 ft
1 main span
Daily traffic
224
2010 count
Owner
Toll Authority
State Toll Authority

About this bridge

Pa Tpk (ramp 3&3A) over SR 0030 is a concrete frame carrying Pa Tpk (ramp 3&3A) over SR 0030 in Westmoreland County, Pennsylvania. It was built in 1939, so it is 86 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 224 vehicles a day, roughly 23% of them trucks, projected to reach 286 by 2030. The structure is 80 ft (24.4 m) long and 62 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesPa Tpk (ramp 3&3A)
CrossesSR 0030
LocationIrwin Interchange
RouteState Highway 0
CountyWestmoreland County
StatePennsylvania
Coordinates40.31594, -79.68019
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.
Last inspectionJuly 2024
Inspection intervalevery 24 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 rating57 US tons
Inventory rating34 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length80 ft (24.4 m)
Longest span72 ft (21.9 m)
Deck width62 ft (18.9 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic224 (2010)
Projected traffic286 by 2030
Trucks23%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a toll road
National Highway SystemYes

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$610,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Pa Tpk (ramp 3&3A) over SR 0030 built?

It was built in 1939, making it 86 years old in 2025.

What condition is Pa Tpk (ramp 3&3A) over SR 0030 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 2024.

How much traffic does Pa Tpk (ramp 3&3A) over SR 0030 carry?

About 224 vehicles per day (2010 count), of which roughly 23% are trucks.

How long is Pa Tpk (ramp 3&3A) over SR 0030?

The structure is 80 ft (24.4 m) long with a longest span of 72 ft (21.9 m) and a deck 62 ft wide.

Who owns Pa Tpk (ramp 3&3A) over SR 0030?

It is owned by the State Toll Authority.