US Bridges

Salem Drive T724 over Whitehorn Creek

PoorPosted for load

Westmoreland County, Pennsylvania · 400 South of SR 1055 · Structure no. 000000000036955

Built
1915
110 years old, rebuilt 1989
Condition
Poor
inspected October 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
35 ft
1 main span
Daily traffic
30
1992 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Salem Drive T724 over Whitehorn Creek is a steel stringer/multi-beam or girder carrying Salem Drive T724 over Whitehorn Creek in Westmoreland County, Pennsylvania. It was built in 1915 and reconstructed in 1989, so it is 110 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 3 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: posted for load restriction.

It carries about 30 vehicles a day, roughly 5% of them trucks, projected to reach 40 by 2010. The structure is 35 ft (10.7 m) long and 16 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesSalem Drive T724
CrossesWhitehorn Creek
Location400 South of SR 1055
RouteCity Street 0T854
CountyWestmoreland County
StatePennsylvania
Coordinates40.40953, -79.45764
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2022
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating41 US tons
Inventory rating24 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckNot applicable
Main spans1
Design loadH 15
Structure length35 ft (10.7 m)
Longest span31 ft (9.4 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (1992)
Projected traffic40 by 2010
Trucks5%
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$59,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Salem Drive T724 over Whitehorn Creek built?

It was built in 1915, making it 110 years old in 2025. It was reconstructed in 1989.

What condition is Salem Drive T724 over Whitehorn Creek 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 October 2022.

How much traffic does Salem Drive T724 over Whitehorn Creek carry?

About 30 vehicles per day (1992 count), of which roughly 5% are trucks.

How long is Salem Drive T724 over Whitehorn Creek?

The structure is 35 ft (10.7 m) long with a longest span of 31 ft (9.4 m) and a deck 16 ft wide.

Who owns Salem Drive T724 over Whitehorn Creek?

It is owned by the Town or Township Highway Agency.