US Bridges

Linn Run Road over Linn Run

Good

Westmoreland County, Pennsylvania · 4 MI South of SR 2043 · Structure no. 000000000037027

Built
1934
91 years old, rebuilt 2003
Condition
Good
inspected September 2022
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
29 ft
1 main span
Daily traffic
325
2012 count
Owner
State
State Park, Forest, or Reservation Agency

About this bridge

Linn Run Road over Linn Run is a prestressed concrete box beam or girders - multiple carrying Linn Run Road over Linn Run in Westmoreland County, Pennsylvania. It was built in 1934 and reconstructed in 2003, so it is 91 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 325 vehicles a day, roughly 5% of them trucks, projected to reach 455 by 2032. The structure is 29 ft (8.8 m) long and 22 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesLinn Run Road
CrossesLinn Run
Location4 MI South of SR 2043
RouteState Lands Road 0
Coordinates40.1369, -79.2033
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating99 US tons
Inventory rating60 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length29 ft (8.8 m)
Longest span27 ft (8.2 m)
Deck width22 ft (6.8 m)
Roadway width18 ft (5.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic325 (2012)
Projected traffic455 by 2032
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Park, Forest, or Reservation Agency
Maintained byState Park, Forest, or Reservation 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 Linn Run Road over Linn Run built?

It was built in 1934, making it 91 years old in 2025. It was reconstructed in 2003.

What condition is Linn Run Road over Linn Run in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2022.

How much traffic does Linn Run Road over Linn Run carry?

About 325 vehicles per day (2012 count), of which roughly 5% are trucks.

How long is Linn Run Road over Linn Run?

The structure is 29 ft (8.8 m) long with a longest span of 27 ft (8.2 m) and a deck 22 ft wide.

Who owns Linn Run Road over Linn Run?

It is owned by the State Park, Forest, or Reservation Agency.