US Bridges

SR0008 Nb&sb over SR0422 Eb&wb

Good

Butler County, Pennsylvania · Bon Aire · Structure no. 000000000007782

Built
1960
65 years old, rebuilt 2006
Condition
Good
inspected January 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
94 ft
1 main span
Daily traffic
10,563
2024 count
Owner
State
State Highway Agency

About this bridge

SR0008 Nb&sb over SR0422 Eb&wb is a prestressed concrete box beam or girders - multiple carrying SR0008 Nb&sb over SR0422 Eb&wb in Butler County, Pennsylvania. It was built in 1960 and reconstructed in 2006, 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 10,563 vehicles a day, roughly 11% of them trucks, projected to reach 15,620 by 2032. The structure is 94 ft (28.7 m) long and 89 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSR0008 Nb&sb
CrossesSR0422 Eb&wb
LocationBon Aire
RouteState Highway 8
Coordinates40.87985, -79.89752
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating94 US tons
Inventory rating39 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length94 ft (28.7 m)
Longest span91 ft (27.7 m)
Deck width89 ft (27 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,563 (2024)
Projected traffic15,620 by 2032
Trucks11%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$5.7 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR0008 Nb&sb over SR0422 Eb&wb built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2006.

What condition is SR0008 Nb&sb over SR0422 Eb&wb 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 January 2024.

How much traffic does SR0008 Nb&sb over SR0422 Eb&wb carry?

About 10,563 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is SR0008 Nb&sb over SR0422 Eb&wb?

The structure is 94 ft (28.7 m) long with a longest span of 91 ft (27.7 m) and a deck 89 ft wide.

Who owns SR0008 Nb&sb over SR0422 Eb&wb?

It is owned by the State Highway Agency.