US Bridges

United Road over Sewickley Creek

Fair

Westmoreland County, Pennsylvania · 1/2 MI West of SR 981 · Structure no. 000000000036946

Built
1987
38 years old
Condition
Fair
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
31 ft
1 main span
Daily traffic
4,300
2022 count
Owner
County
County Highway Agency

About this bridge

United Road over Sewickley Creek is a prestressed concrete box beam or girders - multiple carrying United Road over Sewickley Creek in Westmoreland County, Pennsylvania. It was built in 1987, so it is 38 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 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 4,300 vehicles a day, roughly 5% of them trucks, projected to reach 5,500 by 2042. The structure is 31 ft (9.4 m) long and 36 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesUnited Road
CrossesSewickley Creek
Location1/2 MI West of SR 981
RouteCity Street 0
Coordinates40.21815, -79.49115
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 rating95 US tons
Inventory rating57 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length31 ft (9.4 m)
Longest span29 ft (8.8 m)
Deck width36 ft (11.1 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,300 (2022)
Projected traffic5,500 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway 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 United Road over Sewickley Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is United Road over Sewickley Creek 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 2024.

How much traffic does United Road over Sewickley Creek carry?

About 4,300 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is United Road over Sewickley Creek?

The structure is 31 ft (9.4 m) long with a longest span of 29 ft (8.8 m) and a deck 36 ft wide.

Who owns United Road over Sewickley Creek?

It is owned by the County Highway Agency.