US Bridges

Saltsburg RD over Plum Creek

Poor

Allegheny County, Pennsylvania · 50 E. of Pierson Run Rd. · Structure no. 000000000001232

Built
1957
68 years old
Condition
Poor
inspected July 2024
Type
Slab
Concrete
Length
20 ft
1 main span
Daily traffic
7,708
2023 count
Owner
State
State Highway Agency

About this bridge

Saltsburg RD over Plum Creek is a concrete slab carrying Saltsburg RD over Plum Creek in Allegheny County, Pennsylvania. It was built in 1957, so it is 68 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.

It carries about 7,708 vehicles a day, roughly 4% of them trucks, projected to reach 13,179 by 2032. The structure is 20 ft (6.1 m) long and 42 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSaltsburg RD
CrossesPlum Creek
Location50 E. of Pierson Run Rd.
RouteState Highway 380
Coordinates40.47709, -79.75976
Functional classUrban Other Principal Arterial

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.
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 inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be 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 rating59 US tons
Inventory rating35.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length20 ft (6.1 m)
Longest span16 ft (4.9 m)
Deck width42 ft (12.8 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,708 (2023)
Projected traffic13,179 by 2032
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$106,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Saltsburg RD over Plum Creek built?

It was built in 1957, making it 68 years old in 2025.

What condition is Saltsburg RD over Plum 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 July 2024.

How much traffic does Saltsburg RD over Plum Creek carry?

About 7,708 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Saltsburg RD over Plum Creek?

The structure is 20 ft (6.1 m) long with a longest span of 16 ft (4.9 m) and a deck 42 ft wide.

Who owns Saltsburg RD over Plum Creek?

It is owned by the State Highway Agency.