US Bridges

SR0108 over Wolf Creek

Fair

Butler County, Pennsylvania · Near Slippery Rock · Structure no. 000000000007891

Built
1993
32 years old
Condition
Fair
inspected February 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
103 ft
1 main span
Daily traffic
6,843
2024 count
Owner
State
State Highway Agency

About this bridge

SR0108 over Wolf Creek is a prestressed concrete box beam or girders - multiple carrying SR0108 over Wolf Creek in Butler County, Pennsylvania. It was built in 1993, so it is 32 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 6,843 vehicles a day, roughly 16% of them trucks, projected to reach 11,721 by 2032. The structure is 103 ft (31.4 m) long and 49 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSR0108
CrossesWolf Creek
LocationNear Slippery Rock
RouteState Highway 108
CountyButler County
StatePennsylvania
Coordinates41.04282, -80.10062
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating99 US tons
Inventory rating66 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length103 ft (31.4 m)
Longest span103 ft (31.4 m)
Deck width49 ft (14.8 m)
Roadway width45 ft (13.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,843 (2024)
Projected traffic11,721 by 2032
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$186,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR0108 over Wolf Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is SR0108 over Wolf 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 February 2024.

How much traffic does SR0108 over Wolf Creek carry?

About 6,843 vehicles per day (2024 count), of which roughly 16% are trucks.

How long is SR0108 over Wolf Creek?

The structure is 103 ft (31.4 m) long with a longest span of 103 ft (31.4 m) and a deck 49 ft wide.

Who owns SR0108 over Wolf Creek?

It is owned by the State Highway Agency.