US Bridges

SR 0279 SB over Various City Streets

Fair

Allegheny County, Pennsylvania · Fort Duquesne Bridge · Structure no. 000000000042749

Built
1985
40 years old
Condition
Fair
inspected July 2023
Type
Box Beam or Girders - Multiple
Steel Continuous
Length
1,314 ft
12 main spans
Daily traffic
11,944
2024 count
Owner
State
State Highway Agency

About this bridge

SR 0279 SB over Various City Streets is a steel continuous box beam or girders - multiple carrying SR 0279 SB over Various City Streets in Allegheny County, Pennsylvania. It was built in 1985, so it is 40 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 11,944 vehicles a day, roughly 5% of them trucks, projected to reach 19,690 by 2032. The structure is 1,314 ft (400.5 m) long and 42 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSR 0279 SB
CrossesVarious City Streets
LocationFort Duquesne Bridge
RouteInterstate 279
CountyAllegheny County
StatePennsylvania
Coordinates40.44761, -80.0088
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating42.5 US tons
Inventory rating32.8 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans12
Design loadHS 20
Structure length1,314 ft (400.5 m)
Longest span140 ft (42.7 m)
Deck width42 ft (12.8 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deck15 ft (4.6 m)

Traffic and service

Average daily traffic11,944 (2024)
Projected traffic19,690 by 2032
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 0279 SB over Various City Streets built?

It was built in 1985, making it 40 years old in 2025.

What condition is SR 0279 SB over Various City Streets 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 July 2023.

How much traffic does SR 0279 SB over Various City Streets carry?

About 11,944 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is SR 0279 SB over Various City Streets?

The structure is 1,314 ft (400.5 m) long with a longest span of 140 ft (42.7 m) and a deck 42 ft wide.

Who owns SR 0279 SB over Various City Streets?

It is owned by the State Highway Agency.