US Bridges

Ramp B1 over 65 Nb-Sb Ramp A1 Ramp R

Fair

Allegheny County, Pennsylvania · Glenfield Borough · Structure no. 000000000002789

Built
1977
48 years old, rebuilt 2010
Condition
Fair
inspected October 2022
Type
Girder and Floorbeam System
Steel Continuous
Length
485 ft
4 main spans
Daily traffic
2,495
2024 count
Owner
State
State Highway Agency

About this bridge

Ramp B1 over 65 Nb-Sb Ramp A1 Ramp R is a steel continuous girder and floorbeam system carrying Ramp B1 over 65 Nb-Sb Ramp A1 Ramp R in Allegheny County, Pennsylvania. It was built in 1977 and reconstructed in 2010, so it is 48 years old, younger 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 2,495 vehicles a day, roughly 7% of them trucks, projected to reach 4,004 by 2032. The structure is 485 ft (147.8 m) long and 34 ft wide.

Location

Open in Google Maps
CarriesRamp B1
Crosses65 Nb-Sb Ramp A1 Ramp R
LocationGlenfield Borough
RouteState Highway 0
CountyAllegheny County
StatePennsylvania
Coordinates40.51667, -80.13333
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 inspectionOctober 2022
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 geometry9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating39.7 US tons
Inventory rating24.7 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length485 ft (147.8 m)
Longest span150 ft (45.7 m)
Deck width34 ft (10.4 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,495 (2024)
Projected traffic4,004 by 2032
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 proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$555,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ramp B1 over 65 Nb-Sb Ramp A1 Ramp R built?

It was built in 1977, making it 48 years old in 2025. It was reconstructed in 2010.

What condition is Ramp B1 over 65 Nb-Sb Ramp A1 Ramp R 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 October 2022.

How much traffic does Ramp B1 over 65 Nb-Sb Ramp A1 Ramp R carry?

About 2,495 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is Ramp B1 over 65 Nb-Sb Ramp A1 Ramp R?

The structure is 485 ft (147.8 m) long with a longest span of 150 ft (45.7 m) and a deck 34 ft wide.

Who owns Ramp B1 over 65 Nb-Sb Ramp A1 Ramp R?

It is owned by the State Highway Agency.