US Bridges

Ramp J over Crosstown Blvd

Fair

Allegheny County, Pennsylvania · SR0579 SB to Liberty Br · Structure no. 000000000002732

Built
1962
63 years old, rebuilt 2012
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
601 ft
4 main spans
Daily traffic
12,809
2024 count
Owner
State
State Highway Agency

About this bridge

Ramp J over Crosstown Blvd is a steel continuous stringer/multi-beam or girder carrying Ramp J over Crosstown Blvd in Allegheny County, Pennsylvania. It was built in 1962 and reconstructed in 2012, so it is 63 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 12,809 vehicles a day, roughly 7% of them trucks, projected to reach 19,226 by 2034. The structure is 601 ft (183.2 m) long and 25 ft wide.

Location

Open in Google Maps
CarriesRamp J
CrossesCrosstown Blvd
LocationSR0579 SB to Liberty Br
RouteState Highway 0
CountyAllegheny County
StatePennsylvania
Coordinates40.43781, -79.99438
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
Deck7 GoodSome minor problems.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating70 US tons
Inventory rating42 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4 (+3 approach)
Design loadHS 20
Structure length601 ft (183.2 m)
Longest span125 ft (38.1 m)
Deck width25 ft (7.5 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deck16 ft (4.9 m)

Traffic and service

Average daily traffic12,809 (2024)
Projected traffic19,226 by 2034
Trucks7%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$417,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ramp J over Crosstown Blvd built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2012.

What condition is Ramp J over Crosstown Blvd 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 Ramp J over Crosstown Blvd carry?

About 12,809 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is Ramp J over Crosstown Blvd?

The structure is 601 ft (183.2 m) long with a longest span of 125 ft (38.1 m) and a deck 25 ft wide.

Who owns Ramp J over Crosstown Blvd?

It is owned by the State Highway Agency.