US Bridges

SR0008 SB over B&le RR & Thorn Creek

Fair

Butler County, Pennsylvania · Mcbride SB · Structure no. 000000000007778

Built
1957
68 years old, rebuilt 2010
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
236 ft
4 main spans
Daily traffic
8,105
2023 count
Owner
Railroad
Railroad

About this bridge

SR0008 SB over B&le RR & Thorn Creek is a steel continuous stringer/multi-beam or girder carrying SR0008 SB over B&le RR & Thorn Creek in Butler County, Pennsylvania. It was built in 1957 and reconstructed in 2010, so it is 68 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 6 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 8,105 vehicles a day, roughly 6% of them trucks, projected to reach 10,028 by 2032. The structure is 236 ft (71.9 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSR0008 SB
CrossesB&le RR & Thorn Creek
LocationMcbride SB
RouteState Highway 8
Coordinates40.7991, -79.9299
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88 US tons
Inventory rating68 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length236 ft (71.9 m)
Longest span68 ft (20.7 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,105 (2023)
Projected traffic10,028 by 2032
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad and waterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerRailroad
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 SR0008 SB over B&le RR & Thorn Creek built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 2010.

What condition is SR0008 SB over B&le RR & Thorn Creek 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 March 2024.

How much traffic does SR0008 SB over B&le RR & Thorn Creek carry?

About 8,105 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is SR0008 SB over B&le RR & Thorn Creek?

The structure is 236 ft (71.9 m) long with a longest span of 68 ft (20.7 m) and a deck 44 ft wide.

Who owns SR0008 SB over B&le RR & Thorn Creek?

It is owned by the Railroad and maintained by the State Highway Agency.