US Bridges

Amb-Aliquip Bridg over Route 51

Fair

Beaver County, Pennsylvania · Aliquippa Side · Structure no. 000000000046219

Built
1958
67 years old, rebuilt 1984
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
45 ft
1 main span
Daily traffic
13,920
2024 count
Owner
State
State Highway Agency

About this bridge

Amb-Aliquip Bridg over Route 51 is a steel stringer/multi-beam or girder carrying Amb-Aliquip Bridg over Route 51 in Beaver County, Pennsylvania. It was built in 1958 and reconstructed in 1984, so it is 67 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 13,920 vehicles a day, roughly 7% of them trucks, projected to reach 14,588 by 2032. The structure is 45 ft (13.7 m) long and 39 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesAmb-Aliquip Bridg
CrossesRoute 51
LocationAliquippa Side
RouteState Highway 0
CountyBeaver County
StatePennsylvania
Coordinates40.59167, -80.23667
Functional classUrban Minor 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 rating67 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length45 ft (13.7 m)
Longest span41 ft (12.5 m)
Deck width39 ft (11.9 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deck21 ft (6.4 m)

Traffic and service

Average daily traffic13,920 (2024)
Projected traffic14,588 by 2032
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

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

Frequently asked questions

When was Amb-Aliquip Bridg over Route 51 built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1984.

What condition is Amb-Aliquip Bridg over Route 51 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 Amb-Aliquip Bridg over Route 51 carry?

About 13,920 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is Amb-Aliquip Bridg over Route 51?

The structure is 45 ft (13.7 m) long with a longest span of 41 ft (12.5 m) and a deck 39 ft wide.

Who owns Amb-Aliquip Bridg over Route 51?

It is owned by the State Highway Agency.