US Bridges

Crosstown Blvd over 7th Ave Ramp D

Good

Allegheny County, Pennsylvania · 579 Sb.Over Ramp D · Structure no. 000000000001240

Built
1962
63 years old, rebuilt 1988
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
118 ft
2 main spans
Daily traffic
30,678
2024 count
Owner
State
State Highway Agency

About this bridge

Crosstown Blvd over 7th Ave Ramp D is a steel stringer/multi-beam or girder carrying Crosstown Blvd over 7th Ave Ramp D in Allegheny County, Pennsylvania. It was built in 1962 and reconstructed in 1988, 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 30,678 vehicles a day, roughly 7% of them trucks, projected to reach 31,451 by 2032. The structure is 118 ft (36 m) long and 51 ft wide.

Location

Open in Google Maps
CarriesCrosstown Blvd
Crosses7th Ave Ramp D
Location579 Sb.Over Ramp D
RouteInterstate 579
CountyAllegheny County
StatePennsylvania
Coordinates40.44158, -79.99258
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68 US tons
Inventory rating53 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length118 ft (36 m)
Longest span62 ft (18.9 m)
Deck width51 ft (15.5 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deck17 ft (5.2 m)

Traffic and service

Average daily traffic30,678 (2024)
Projected traffic31,451 by 2032
Trucks7%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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$213,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Crosstown Blvd over 7th Ave Ramp D built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1988.

What condition is Crosstown Blvd over 7th Ave Ramp D in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.

How much traffic does Crosstown Blvd over 7th Ave Ramp D carry?

About 30,678 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is Crosstown Blvd over 7th Ave Ramp D?

The structure is 118 ft (36 m) long with a longest span of 62 ft (18.9 m) and a deck 51 ft wide.

Who owns Crosstown Blvd over 7th Ave Ramp D?

It is owned by the State Highway Agency.