US Bridges

East ST over I-279(LR 1021-3)

Fair

Allegheny County, Pennsylvania · 137 East ST Bridge · Structure no. 000000000001062

Built
1986
39 years old
Condition
Fair
inspected April 2023
Type
Frame
Steel Continuous
Length
450 ft
3 main spans
Daily traffic
2,000
2007 count
Owner
City
City or Municipal Highway Agency

About this bridge

East ST over I-279(LR 1021-3) is a steel continuous frame carrying East ST over I-279(LR 1021-3) in Allegheny County, Pennsylvania. It was built in 1986, so it is 39 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 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 2,000 vehicles a day, roughly 10% of them trucks, projected to reach 2,000 by 2022. The structure is 450 ft (137.2 m) long and 46 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesEast ST
CrossesI-279(LR 1021-3)
Location137 East ST Bridge
RouteCity Street 0
CountyAllegheny County
StatePennsylvania
Coordinates40.48314, -80.00757
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating73 US tons
Inventory rating44 US tons

Structure

Structure typeFrame
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length450 ft (137.2 m)
Longest span175 ft (53.3 m)
Deck width46 ft (13.9 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,000 (2007)
Projected traffic2,000 by 2022
Trucks10%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$404,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was East ST over I-279(LR 1021-3) built?

It was built in 1986, making it 39 years old in 2025.

What condition is East ST over I-279(LR 1021-3) 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 East ST over I-279(LR 1021-3) carry?

About 2,000 vehicles per day (2007 count), of which roughly 10% are trucks.

How long is East ST over I-279(LR 1021-3)?

The structure is 450 ft (137.2 m) long with a longest span of 175 ft (53.3 m) and a deck 46 ft wide.

Who owns East ST over I-279(LR 1021-3)?

It is owned by the City or Municipal Highway Agency.