US Bridges

Ramp B over Rps.C&d NB Carson Ramp

Good

Allegheny County, Pennsylvania · Homestead Interchange · Structure no. 000000000002874

Built
1966
59 years old, rebuilt 2017
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
175 ft
3 main spans
Daily traffic
643
2024 count
Owner
State
State Highway Agency

About this bridge

Ramp B over Rps.C&d NB Carson Ramp is a steel stringer/multi-beam or girder carrying Ramp B over Rps.C&d NB Carson Ramp in Allegheny County, Pennsylvania. It was built in 1966 and reconstructed in 2017, so it is 59 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 643 vehicles a day, roughly 7% of them trucks, projected to reach 12,916 by 2032. The structure is 175 ft (53.3 m) long and 23 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesRamp B
CrossesRps.C&d NB Carson Ramp
LocationHomestead Interchange
RouteState Highway 0
CountyAllegheny County
StatePennsylvania
Coordinates40.39265, -79.93432
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionJune 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 rating59.3 US tons
Inventory rating45.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length175 ft (53.3 m)
Longest span80 ft (24.4 m)
Deck width23 ft (6.9 m)
Roadway width18 ft (5.6 m)
Vertical clearance over deck18 ft (5.4 m)

Traffic and service

Average daily traffic643 (2024)
Projected traffic12,916 by 2032
Trucks7%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
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$572,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ramp B over Rps.C&d NB Carson Ramp built?

It was built in 1966, making it 59 years old in 2025. It was reconstructed in 2017.

What condition is Ramp B over Rps.C&d NB Carson Ramp 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 June 2024.

How much traffic does Ramp B over Rps.C&d NB Carson Ramp carry?

About 643 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is Ramp B over Rps.C&d NB Carson Ramp?

The structure is 175 ft (53.3 m) long with a longest span of 80 ft (24.4 m) and a deck 23 ft wide.

Who owns Ramp B over Rps.C&d NB Carson Ramp?

It is owned by the State Highway Agency.