US Bridges

Possum Hollow Road over Trib of L Sewickley Crk

Poor

Westmoreland County, Pennsylvania · 1/2 MI NE of SR3077 · Structure no. 000000000036916

Built
1930
95 years old
Condition
Poor
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
23 ft
1 main span
Daily traffic
833
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Possum Hollow Road over Trib of L Sewickley Crk is a steel stringer/multi-beam or girder carrying Possum Hollow Road over Trib of L Sewickley Crk in Westmoreland County, Pennsylvania. It was built in 1930, so it is 95 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: open, would be posted or closed except for temporary shoring.

It carries about 833 vehicles a day, roughly 1% of them trucks, projected to reach 1,143 by 2042. The structure is 23 ft (7 m) long and 18 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesPossum Hollow Road
CrossesTrib of L Sewickley Crk
Location1/2 MI NE of SR3077
RouteCity Street 0T550
Coordinates40.29236, -79.63917
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, would be posted or closed except for temporary shoring
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating80 US tons
Inventory rating48 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length23 ft (7 m)
Longest span22 ft (6.7 m)
Deck width18 ft (5.5 m)
Roadway width13 ft (4.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic833 (2022)
Projected traffic1,143 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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$150,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Possum Hollow Road over Trib of L Sewickley Crk built?

It was built in 1930, making it 95 years old in 2025.

What condition is Possum Hollow Road over Trib of L Sewickley Crk in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does Possum Hollow Road over Trib of L Sewickley Crk carry?

About 833 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Possum Hollow Road over Trib of L Sewickley Crk?

The structure is 23 ft (7 m) long with a longest span of 22 ft (6.7 m) and a deck 18 ft wide.

Who owns Possum Hollow Road over Trib of L Sewickley Crk?

It is owned by the Town or Township Highway Agency.