US Bridges

SR 0711 over Big Spring Run

Fair

Westmoreland County, Pennsylvania · Saint Clair Township · Structure no. 000000000036259

Built
1992
33 years old
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
35 ft
1 main span
Daily traffic
2,935
2024 count
Owner
State
State Highway Agency

About this bridge

SR 0711 over Big Spring Run is a prestressed concrete box beam or girders - multiple carrying SR 0711 over Big Spring Run in Westmoreland County, Pennsylvania. It was built in 1992, so it is 33 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 2,935 vehicles a day, roughly 10% of them trucks, projected to reach 4,453 by 2032. The structure is 35 ft (10.7 m) long and 48 ft wide. If it were closed, the detour would be 26.7 mi (43 km).

CarriesSR 0711
CrossesBig Spring Run
LocationSaint Clair Township
RouteState Highway 711
Coordinates40.40296, -79.02714
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
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 geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52 US tons
Inventory rating31 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length35 ft (10.7 m)
Longest span33 ft (10.1 m)
Deck width48 ft (14.5 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,935 (2024)
Projected traffic4,453 by 2032
Trucks10%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$354,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 0711 over Big Spring Run built?

It was built in 1992, making it 33 years old in 2025.

What condition is SR 0711 over Big Spring 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 June 2023.

How much traffic does SR 0711 over Big Spring Run carry?

About 2,935 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is SR 0711 over Big Spring Run?

The structure is 35 ft (10.7 m) long with a longest span of 33 ft (10.1 m) and a deck 48 ft wide.

Who owns SR 0711 over Big Spring Run?

It is owned by the State Highway Agency.