US Bridges

Allegheny Street over Block House Run

Fair

Beaver County, Pennsylvania · 2000 East of SR 0018 · Structure no. 000000000003656

Built
1967
58 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
41 ft
1 main span
Daily traffic
5,404
2023 count
Owner
State
State Highway Agency

About this bridge

Allegheny Street over Block House Run is a steel stringer/multi-beam or girder carrying Allegheny Street over Block House Run in Beaver County, Pennsylvania. It was built in 1967, so it is 58 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 5,404 vehicles a day, roughly 4% of them trucks, projected to reach 6,271 by 2032. The structure is 41 ft (12.5 m) long and 45 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesAllegheny Street
CrossesBlock House Run
Location2000 East of SR 0018
RouteState Highway 0
CountyBeaver County
StatePennsylvania
Coordinates40.73666, -80.30542
Functional classUrban Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 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
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79 US tons
Inventory rating47 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length41 ft (12.5 m)
Longest span39 ft (11.9 m)
Deck width45 ft (13.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,404 (2023)
Projected traffic6,271 by 2032
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Allegheny Street over Block House Run built?

It was built in 1967, making it 58 years old in 2025.

What condition is Allegheny Street over Block House Run 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 Allegheny Street over Block House Run carry?

About 5,404 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Allegheny Street over Block House Run?

The structure is 41 ft (12.5 m) long with a longest span of 39 ft (11.9 m) and a deck 45 ft wide.

Who owns Allegheny Street over Block House Run?

It is owned by the State Highway Agency.