US Bridges

FR 108 over Wolf Run

FairPosted for load

Forest County, Pennsylvania · S. of Duhring Off FR 131 · Structure no. 091902000001002

Built
1900
125 years old, rebuilt 1989
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
41 ft
1 main span
Daily traffic
5
Owner
Federal
U.S. Forest Service

About this bridge

FR 108 over Wolf Run is a steel stringer/multi-beam or girder carrying FR 108 over Wolf Run in Forest County, Pennsylvania. It was built in 1900 and reconstructed in 1989, so it is 125 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. Its operating status is: posted for load restriction.

It carries about 5 vehicles a day, projected to reach 7 by 2045. The structure is 41 ft (12.4 m) long and 15 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

Location

Open in Google Maps
CarriesFR 108
CrossesWolf Run
LocationS. of Duhring Off FR 131
RouteFederal Lands Road 108
CountyForest County
StatePennsylvania
Coordinates41.48498, -79.00859
Functional classRural Local

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating15.3 US tons
Inventory rating11.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadH 15
Structure length41 ft (12.4 m)
Longest span29 ft (8.8 m)
Deck width15 ft (4.6 m)
Roadway width11 ft (3.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (—)
Projected traffic7 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FR 108 over Wolf Run built?

It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1989.

What condition is FR 108 over Wolf 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 FR 108 over Wolf Run carry?

About 5 vehicles per day (latest count).

How long is FR 108 over Wolf Run?

The structure is 41 ft (12.4 m) long with a longest span of 29 ft (8.8 m) and a deck 15 ft wide.

Who owns FR 108 over Wolf Run?

It is owned by the U.S. Forest Service.