US Bridges

SR 120-PA 120 over Laurel Run

Fair

Elk County, Pennsylvania · 2 MI W ST Marys · Structure no. 000000000015524

Built
1949
76 years old
Condition
Fair
inspected May 2024
Type
Tee Beam
Concrete
Length
27 ft
1 main span
Daily traffic
3,617
2024 count
Owner
State
State Highway Agency

About this bridge

SR 120-PA 120 over Laurel Run is a concrete tee beam carrying SR 120-PA 120 over Laurel Run in Elk County, Pennsylvania. It was built in 1949, so it is 76 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 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 3,617 vehicles a day, roughly 7% of them trucks, projected to reach 4,577 by 2044. The structure is 27 ft (8.2 m) long and 41 ft wide. If it were closed, the detour would be 26.7 mi (43 km).

Location

Open in Google Maps
CarriesSR 120-PA 120
CrossesLaurel Run
Location2 MI W ST Marys
RouteState Highway 120
CountyElk County
StatePennsylvania
Coordinates41.41868, -78.60385
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating59 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span26 ft (7.9 m)
Deck width41 ft (12.6 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,617 (2024)
Projected traffic4,577 by 2044
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.7 mi (43 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$359,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 120-PA 120 over Laurel Run built?

It was built in 1949, making it 76 years old in 2025.

What condition is SR 120-PA 120 over Laurel 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 May 2024.

How much traffic does SR 120-PA 120 over Laurel Run carry?

About 3,617 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is SR 120-PA 120 over Laurel Run?

The structure is 27 ft (8.2 m) long with a longest span of 26 ft (7.9 m) and a deck 41 ft wide.

Who owns SR 120-PA 120 over Laurel Run?

It is owned by the State Highway Agency.