US Bridges

Piper Street over Bear Rock Run

Fair

Cambria County, Pennsylvania · Lilly Boro - Piper ST · Structure no. 000000000008795

Built
1938
87 years old
Condition
Fair
inspected November 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
36 ft
1 main span
Daily traffic
205
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Piper Street over Bear Rock Run is a steel stringer/multi-beam or girder carrying Piper Street over Bear Rock Run in Cambria County, Pennsylvania. It was built in 1938, so it is 87 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 205 vehicles a day, projected to reach 256 by 2044. The structure is 36 ft (11 m) long and 41 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesPiper Street
CrossesBear Rock Run
LocationLilly Boro - Piper ST
RouteCity Street 0
CountyCambria County
StatePennsylvania
Coordinates40.42452, -78.61616
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionNovember 2022
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 adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82 US tons
Inventory rating49.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length36 ft (11 m)
Longest span32 ft (9.8 m)
Deck width41 ft (12.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic205 (2024)
Projected traffic256 by 2044
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$674,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Piper Street over Bear Rock Run built?

It was built in 1938, making it 87 years old in 2025.

What condition is Piper Street over Bear Rock 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 November 2022.

How much traffic does Piper Street over Bear Rock Run carry?

About 205 vehicles per day (2024 count).

How long is Piper Street over Bear Rock Run?

The structure is 36 ft (11 m) long with a longest span of 32 ft (9.8 m) and a deck 41 ft wide.

Who owns Piper Street over Bear Rock Run?

It is owned by the City or Municipal Highway Agency.