US Bridges

Potato Garden RD over Potato Garden Run

Fair

Allegheny County, Pennsylvania · Near SR 3089 · Structure no. 000000000001833

Built
1940
85 years old, rebuilt 2004
Condition
Fair
inspected November 2023
Type
Slab
Concrete
Length
28 ft
1 main span
Daily traffic
529
2024 count
Owner
State
State Highway Agency

About this bridge

Potato Garden RD over Potato Garden Run is a concrete slab carrying Potato Garden RD over Potato Garden Run in Allegheny County, Pennsylvania. It was built in 1940 and reconstructed in 2004, so it is 85 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 529 vehicles a day, roughly 8% of them trucks, projected to reach 257 by 2032. The structure is 28 ft (8.5 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesPotato Garden RD
CrossesPotato Garden Run
LocationNear SR 3089
RouteState Highway 0
CountyAllegheny County
StatePennsylvania
Coordinates40.47104, -80.30829
Functional classRural Minor 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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating87 US tons
Inventory rating52 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span26 ft (7.9 m)
Deck width28 ft (8.6 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic529 (2024)
Projected traffic257 by 2032
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Potato Garden RD over Potato Garden Run built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 2004.

What condition is Potato Garden 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 November 2023.

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

About 529 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is Potato Garden RD over Potato Garden Run?

The structure is 28 ft (8.5 m) long with a longest span of 26 ft (7.9 m) and a deck 28 ft wide.

Who owns Potato Garden RD over Potato Garden Run?

It is owned by the State Highway Agency.