US Bridges

On Tsr 579 over Laurelly Run

Fair

Clinton County, Pennsylvania · 4 MI N Gleasonton · Structure no. 000000000012391

Built
1937
88 years old, rebuilt 2003
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
24 ft
1 main span
Daily traffic
89
2024 count
Owner
State
State Highway Agency

About this bridge

On Tsr 579 over Laurelly Run is a steel stringer/multi-beam or girder carrying On Tsr 579 over Laurelly Run in Clinton County, Pennsylvania. It was built in 1937 and reconstructed in 2003, so it is 88 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.

It carries about 89 vehicles a day, roughly 10% of them trucks, projected to reach 116 by 2044. The structure is 24 ft (7.3 m) long and 23 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesOn Tsr 579
CrossesLaurelly Run
Location4 MI N Gleasonton
RouteState Highway 0
CountyClinton County
StatePennsylvania
Coordinates41.37606, -77.69477
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69 US tons
Inventory rating41 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckClosed grating
Main spans1
Design loadH 20
Structure length24 ft (7.3 m)
Longest span23 ft (7 m)
Deck width23 ft (7.1 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic89 (2024)
Projected traffic116 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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$393,000
NavigationNo navigation control on waterway

Frequently asked questions

When was On Tsr 579 over Laurelly Run built?

It was built in 1937, making it 88 years old in 2025. It was reconstructed in 2003.

What condition is On Tsr 579 over Laurelly 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 October 2024.

How much traffic does On Tsr 579 over Laurelly Run carry?

About 89 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is On Tsr 579 over Laurelly Run?

The structure is 24 ft (7.3 m) long with a longest span of 23 ft (7 m) and a deck 23 ft wide.

Who owns On Tsr 579 over Laurelly Run?

It is owned by the State Highway Agency.