US Bridges

Blvd Allies WB over Forbes Birm E&f Brady

Fair

Allegheny County, Pennsylvania · Birmingham Bridge · Structure no. 000000000001320

Built
1928
97 years old, rebuilt 1985
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
1,083 ft
24 main spans
Daily traffic
16,941
2024 count
Owner
State
State Highway Agency

About this bridge

Blvd Allies WB over Forbes Birm E&f Brady is a steel stringer/multi-beam or girder carrying Blvd Allies WB over Forbes Birm E&f Brady in Allegheny County, Pennsylvania. It was built in 1928 and reconstructed in 1985, so it is 97 years old, older 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 16,941 vehicles a day, roughly 3% of them trucks, projected to reach 19,751 by 2032. The structure is 1,083 ft (330.1 m) long and 46 ft wide.

Location

Open in Google Maps
CarriesBlvd Allies WB
CrossesForbes Birm E&f Brady
LocationBirmingham Bridge
RouteState Highway 885
CountyAllegheny County
StatePennsylvania
Coordinates40.43686, -79.97247
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 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 alignment7: Better than present minimum criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans24
Design loadHL 93
Structure length1,083 ft (330.1 m)
Longest span67 ft (20.4 m)
Deck width46 ft (14 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deck15 ft (4.5 m)

Traffic and service

Average daily traffic16,941 (2024)
Projected traffic19,751 by 2032
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Blvd Allies WB over Forbes Birm E&f Brady built?

It was built in 1928, making it 97 years old in 2025. It was reconstructed in 1985.

What condition is Blvd Allies WB over Forbes Birm E&f Brady 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 August 2023.

How much traffic does Blvd Allies WB over Forbes Birm E&f Brady carry?

About 16,941 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is Blvd Allies WB over Forbes Birm E&f Brady?

The structure is 1,083 ft (330.1 m) long with a longest span of 67 ft (20.4 m) and a deck 46 ft wide.

Who owns Blvd Allies WB over Forbes Birm E&f Brady?

It is owned by the State Highway Agency.