US Bridges

Stewart Road over Piney Fork Creek

Fair

Allegheny County, Pennsylvania · 250 N of Piney Fork RD · Structure no. 000000000001708

Built
1930
95 years old
Condition
Fair
inspected March 2023
Type
Arch - Deck
Masonry
Length
26 ft
1 main span
Daily traffic
1,458
2024 count
Owner
State
State Highway Agency

About this bridge

Stewart Road over Piney Fork Creek is a masonry arch - deck carrying Stewart Road over Piney Fork Creek in Allegheny 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 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 1,458 vehicles a day, roughly 1% of them trucks, projected to reach 1,944 by 2032. The structure is 26 ft (7.9 m) long and 22 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesStewart Road
CrossesPiney Fork Creek
Location250 N of Piney Fork RD
RouteState Highway 0
CountyAllegheny County
StatePennsylvania
Coordinates40.28949, -80.00853
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating36 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckNot applicable
Main spans1
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span26 ft (7.9 m)
Deck width22 ft (6.8 m)
Roadway width18 ft (5.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,458 (2024)
Projected traffic1,944 by 2032
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$165,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Stewart Road over Piney Fork Creek built?

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

What condition is Stewart Road over Piney Fork Creek 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 March 2023.

How much traffic does Stewart Road over Piney Fork Creek carry?

About 1,458 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Stewart Road over Piney Fork Creek?

The structure is 26 ft (7.9 m) long with a longest span of 26 ft (7.9 m) and a deck 22 ft wide.

Who owns Stewart Road over Piney Fork Creek?

It is owned by the State Highway Agency.