US Bridges

SR 0079 NB over SR 4052 W. Bayne Road

Fair

Allegheny County, Pennsylvania · SR 0079 NB over SR 4052 · Structure no. 000000000000918

Built
1974
51 years old, rebuilt 2011
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
388 ft
2 main spans
Daily traffic
34,286
2024 count
Owner
State
State Highway Agency

About this bridge

SR 0079 NB over SR 4052 W. Bayne Road is a steel continuous stringer/multi-beam or girder carrying SR 0079 NB over SR 4052 W. Bayne Road in Allegheny County, Pennsylvania. It was built in 1974 and reconstructed in 2011, so it is 51 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 34,286 vehicles a day, roughly 9% of them trucks, projected to reach 19,385 by 2032. The structure is 388 ft (118.3 m) long and 56 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSR 0079 NB
CrossesSR 4052 W. Bayne Road
LocationSR 0079 NB over SR 4052
RouteInterstate 79
CountyAllegheny County
StatePennsylvania
Coordinates40.64968, -80.09456
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating37 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length388 ft (118.3 m)
Longest span143 ft (43.6 m)
Deck width56 ft (17.1 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34,286 (2024)
Projected traffic19,385 by 2032
Trucks9%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.1 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 0079 NB over SR 4052 W. Bayne Road built?

It was built in 1974, making it 51 years old in 2025. It was reconstructed in 2011.

What condition is SR 0079 NB over SR 4052 W. Bayne Road 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 May 2024.

How much traffic does SR 0079 NB over SR 4052 W. Bayne Road carry?

About 34,286 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is SR 0079 NB over SR 4052 W. Bayne Road?

The structure is 388 ft (118.3 m) long with a longest span of 143 ft (43.6 m) and a deck 56 ft wide.

Who owns SR 0079 NB over SR 4052 W. Bayne Road?

It is owned by the State Highway Agency.