US Bridges

North Av over Girtys Run

Fair

Allegheny County, Pennsylvania · 445002 at Franklin ST · Structure no. 000000000002616

Built
1982
43 years old
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
31 ft
1 main span
Daily traffic
2,500
2005 count
Owner
City
City or Municipal Highway Agency

About this bridge

North Av over Girtys Run is a prestressed concrete box beam or girders - multiple carrying North Av over Girtys Run in Allegheny County, Pennsylvania. It was built in 1982, so it is 43 years old, younger 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 2,500 vehicles a day, roughly 6% of them trucks, projected to reach 2,500 by 2025. The structure is 31 ft (9.4 m) long and 60 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNorth Av
CrossesGirtys Run
Location445002 at Franklin ST
RouteCity Street 0
CountyAllegheny County
StatePennsylvania
Coordinates40.49044, -79.97238
Functional classUrban Other Principal 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating110.1 US tons
Inventory rating75.9 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span27 ft (8.2 m)
Deck width60 ft (18.3 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,500 (2005)
Projected traffic2,500 by 2025
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$30,000
NavigationNo navigation control on waterway

Frequently asked questions

When was North Av over Girtys Run built?

It was built in 1982, making it 43 years old in 2025.

What condition is North Av over Girtys 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 April 2023.

How much traffic does North Av over Girtys Run carry?

About 2,500 vehicles per day (2005 count), of which roughly 6% are trucks.

How long is North Av over Girtys Run?

The structure is 31 ft (9.4 m) long with a longest span of 27 ft (8.2 m) and a deck 60 ft wide.

Who owns North Av over Girtys Run?

It is owned by the City or Municipal Highway Agency.