US Bridges

Bigelow Blvd over 7th Ave

Good

Allegheny County, Pennsylvania · TR 380 W.B.Over 7th Ave · Structure no. 000000000001217

Built
1960
65 years old, rebuilt 2008
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
102 ft
1 main span
Daily traffic
12,115
2024 count
Owner
State
State Highway Agency

About this bridge

Bigelow Blvd over 7th Ave is a steel stringer/multi-beam or girder carrying Bigelow Blvd over 7th Ave in Allegheny County, Pennsylvania. It was built in 1960 and reconstructed in 2008, so it is 65 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 12,115 vehicles a day, roughly 2% of them trucks, projected to reach 10,283 by 2032. The structure is 102 ft (31.1 m) long and 45 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesBigelow Blvd
Crosses7th Ave
LocationTR 380 W.B.Over 7th Ave
RouteState Highway 380
CountyAllegheny County
StatePennsylvania
Coordinates40.44167, -79.99667
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2024
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 alignment6: Equal to present minimum criteria
Operating rating93 US tons
Inventory rating56 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length102 ft (31.1 m)
Longest span100 ft (30.5 m)
Deck width45 ft (13.7 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deck17 ft (5.2 m)

Traffic and service

Average daily traffic12,115 (2024)
Projected traffic10,283 by 2032
Trucks2%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$572,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Bigelow Blvd over 7th Ave built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2008.

What condition is Bigelow Blvd over 7th Ave in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.

How much traffic does Bigelow Blvd over 7th Ave carry?

About 12,115 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is Bigelow Blvd over 7th Ave?

The structure is 102 ft (31.1 m) long with a longest span of 100 ft (30.5 m) and a deck 45 ft wide.

Who owns Bigelow Blvd over 7th Ave?

It is owned by the State Highway Agency.