US Bridges

Stoops Ferry Road over Flaugherty Run

Good

Allegheny County, Pennsylvania · At SR 3089 Int · Structure no. 000000000057373

Built
2019
6 years old
Condition
Good
inspected December 2021
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
80 ft
1 main span
Daily traffic
13,326
2023 count
Owner
State
State Highway Agency

About this bridge

Stoops Ferry Road over Flaugherty Run is a prestressed concrete box beam or girders - multiple carrying Stoops Ferry Road over Flaugherty Run in Allegheny County, Pennsylvania. It was built in 2019, so it is 6 years old, younger than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 13,326 vehicles a day, roughly 6% of them trucks, projected to reach 16,887 by 2032. The structure is 80 ft (24.4 m) long and 58 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesStoops Ferry Road
CrossesFlaugherty Run
LocationAt SR 3089 Int
RouteState Highway 51
CountyAllegheny County
StatePennsylvania
Coordinates40.54309, -80.21739
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating42.5 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length80 ft (24.4 m)
Longest span77 ft (23.5 m)
Deck width58 ft (17.6 m)
Roadway width49 ft (14.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,326 (2023)
Projected traffic16,887 by 2032
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Stoops Ferry Road over Flaugherty Run built?

It was built in 2019, making it 6 years old in 2025.

What condition is Stoops Ferry Road over Flaugherty Run in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2021.

How much traffic does Stoops Ferry Road over Flaugherty Run carry?

About 13,326 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is Stoops Ferry Road over Flaugherty Run?

The structure is 80 ft (24.4 m) long with a longest span of 77 ft (23.5 m) and a deck 58 ft wide.

Who owns Stoops Ferry Road over Flaugherty Run?

It is owned by the State Highway Agency.