US Bridges

Pa 56 over Weaver Run

Fair

Somerset County, Pennsylvania · Windber Borough · Structure no. 000000000031350

Built
1959
66 years old, rebuilt 1992
Condition
Fair
inspected December 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
30 ft
1 main span
Daily traffic
4,460
2023 count
Owner
State
State Highway Agency

About this bridge

Pa 56 over Weaver Run is a prestressed concrete box beam or girders - multiple carrying Pa 56 over Weaver Run in Somerset County, Pennsylvania. It was built in 1959 and reconstructed in 1992, so it is 66 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 4,460 vehicles a day, roughly 11% of them trucks, projected to reach 5,710 by 2032. The structure is 30 ft (9.1 m) long and 91 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesPa 56
CrossesWeaver Run
LocationWindber Borough
RouteState Highway 56
CountySomerset County
StatePennsylvania
Coordinates40.22799, -78.82738
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88 US tons
Inventory rating54 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length30 ft (9.1 m)
Longest span28 ft (8.5 m)
Deck width91 ft (27.8 m)
Roadway width38 ft (11.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,460 (2023)
Projected traffic5,710 by 2032
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Pa 56 over Weaver Run built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1992.

What condition is Pa 56 over Weaver Run 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 December 2024.

How much traffic does Pa 56 over Weaver Run carry?

About 4,460 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is Pa 56 over Weaver Run?

The structure is 30 ft (9.1 m) long with a longest span of 28 ft (8.5 m) and a deck 91 ft wide.

Who owns Pa 56 over Weaver Run?

It is owned by the State Highway Agency.