US Bridges

Liberty Br. Ramp over 1st Ave 2nd Ave Local

Fair

Allegheny County, Pennsylvania · Liberty Br.To Blvd. Alies · Structure no. 000000000045327

Built
1928
97 years old, rebuilt 2017
Condition
Fair
inspected April 2023
Type
Truss - Deck
Steel
Length
432 ft
3 main spans
Daily traffic
7,063
2024 count
Owner
State
State Highway Agency

About this bridge

Liberty Br. Ramp over 1st Ave 2nd Ave Local is a steel truss - deck carrying Liberty Br. Ramp over 1st Ave 2nd Ave Local in Allegheny County, Pennsylvania. It was built in 1928 and reconstructed in 2017, so it is 97 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 5 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 7,063 vehicles a day, roughly 7% of them trucks, projected to reach 3,648 by 2032. The structure is 432 ft (131.7 m) long and 29 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesLiberty Br. Ramp
Crosses1st Ave 2nd Ave Local
LocationLiberty Br.To Blvd. Alies
RouteState Highway 0
CountyAllegheny County
StatePennsylvania
Coordinates40.43511, -79.99497
Functional classUrban Other Principal Arterial

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionApril 2023
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 geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65 US tons
Inventory rating39 US tons

Structure

Structure typeTruss - Deck
MaterialSteel
DeckClosed grating
Main spans3
Design loadHS 20
Structure length432 ft (131.7 m)
Longest span242 ft (73.8 m)
Deck width29 ft (8.9 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,063 (2024)
Projected traffic3,648 by 2032
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Liberty Br. Ramp over 1st Ave 2nd Ave Local built?

It was built in 1928, making it 97 years old in 2025. It was reconstructed in 2017.

What condition is Liberty Br. Ramp over 1st Ave 2nd Ave Local 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 April 2023.

How much traffic does Liberty Br. Ramp over 1st Ave 2nd Ave Local carry?

About 7,063 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is Liberty Br. Ramp over 1st Ave 2nd Ave Local?

The structure is 432 ft (131.7 m) long with a longest span of 242 ft (73.8 m) and a deck 29 ft wide.

Who owns Liberty Br. Ramp over 1st Ave 2nd Ave Local?

It is owned by the State Highway Agency.