US Bridges

SR0008 NB over B&le RR & Thorn Creek

Fair

Butler County, Pennsylvania · Mcbride NB · Structure no. 000000000007777

Built
1989
36 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
237 ft
4 main spans
Daily traffic
8,168
2023 count
Owner
Railroad
Railroad

About this bridge

SR0008 NB over B&le RR & Thorn Creek is a steel continuous stringer/multi-beam or girder carrying SR0008 NB over B&le RR & Thorn Creek in Butler County, Pennsylvania. It was built in 1989, so it is 36 years old, younger 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 8,168 vehicles a day, roughly 4% of them trucks, projected to reach 9,384 by 2032. The structure is 237 ft (72.2 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSR0008 NB
CrossesB&le RR & Thorn Creek
LocationMcbride NB
RouteState Highway 8
Coordinates40.7991, -79.9297
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.9 US tons
Inventory rating45 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length237 ft (72.2 m)
Longest span69 ft (21 m)
Deck width45 ft (13.7 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,168 (2023)
Projected traffic9,384 by 2032
Trucks4%
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 NB over B&le RR & Thorn Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is SR0008 NB 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 NB over B&le RR & Thorn Creek carry?

About 8,168 vehicles per day (2023 count), of which roughly 4% are trucks.

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

The structure is 237 ft (72.2 m) long with a longest span of 69 ft (21 m) and a deck 45 ft wide.

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

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