US Bridges

Flaugherty Run RD over Flaugherty Run

Fair

Allegheny County, Pennsylvania · 1/4 Mi. E. of Twp. RD.114 · Structure no. 000000000001853

Built
1925
100 years old
Condition
Fair
inspected October 2023
Type
Arch - Deck
Concrete
Length
60 ft
1 main span
Daily traffic
6,482
2024 count
Owner
State
State Highway Agency

About this bridge

Flaugherty Run RD over Flaugherty Run is a concrete arch - deck carrying Flaugherty Run RD over Flaugherty Run in Allegheny County, Pennsylvania. It was built in 1925, so it is 100 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 6,482 vehicles a day, roughly 6% of them trucks, projected to reach 7,227 by 2032. The structure is 60 ft (18.3 m) long and 28 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesFlaugherty Run RD
CrossesFlaugherty Run
Location1/4 Mi. E. of Twp. RD.114
RouteState Highway 0
CountyAllegheny County
StatePennsylvania
Coordinates40.5293, -80.23762
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, 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 inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating36 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span30 ft (9.1 m)
Deck width28 ft (8.5 m)
Roadway width21 ft (6.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,482 (2024)
Projected traffic7,227 by 2032
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$297,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Flaugherty Run RD over Flaugherty Run built?

It was built in 1925, making it 100 years old in 2025.

What condition is Flaugherty Run RD over Flaugherty 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 Flaugherty Run RD over Flaugherty Run carry?

About 6,482 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is Flaugherty Run RD over Flaugherty Run?

The structure is 60 ft (18.3 m) long with a longest span of 30 ft (9.1 m) and a deck 28 ft wide.

Who owns Flaugherty Run RD over Flaugherty Run?

It is owned by the State Highway Agency.