US Bridges

Washington RD over Potato Garden Run

Fair

Allegheny County, Pennsylvania · Near SR 3071 Intersection · Structure no. 000000000001849

Built
1941
84 years old, rebuilt 2013
Condition
Fair
inspected October 2023
Type
Slab
Concrete
Length
32 ft
1 main span
Daily traffic
1,064
2023 count
Owner
State
State Highway Agency

About this bridge

Washington RD over Potato Garden Run is a concrete slab carrying Washington RD over Potato Garden Run in Allegheny County, Pennsylvania. It was built in 1941 and reconstructed in 2013, so it is 84 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 6 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 1,064 vehicles a day, roughly 11% of them trucks, projected to reach 907 by 2032. The structure is 32 ft (9.8 m) long and 29 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesWashington RD
CrossesPotato Garden Run
LocationNear SR 3071 Intersection
RouteState Highway 0
CountyAllegheny County
StatePennsylvania
Coordinates40.46881, -80.30542
Functional classRural Major 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85 US tons
Inventory rating51 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span29 ft (8.8 m)
Deck width29 ft (8.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,064 (2023)
Projected traffic907 by 2032
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$197,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Washington RD over Potato Garden Run built?

It was built in 1941, making it 84 years old in 2025. It was reconstructed in 2013.

What condition is Washington RD over Potato Garden 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 October 2023.

How much traffic does Washington RD over Potato Garden Run carry?

About 1,064 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is Washington RD over Potato Garden Run?

The structure is 32 ft (9.8 m) long with a longest span of 29 ft (8.8 m) and a deck 29 ft wide.

Who owns Washington RD over Potato Garden Run?

It is owned by the State Highway Agency.