US Bridges

Big Sewickley C RD over Big Sewickley Creek

Fair

Allegheny County, Pennsylvania · 1 Mi. S.W. of SR 2003 · Structure no. 000000000001977

Built
1959
66 years old
Condition
Fair
inspected June 2024
Type
Tee Beam
Concrete
Length
101 ft
2 main spans
Daily traffic
2,730
2023 count
Owner
State
State Highway Agency

About this bridge

Big Sewickley C RD over Big Sewickley Creek is a concrete tee beam carrying Big Sewickley C RD over Big Sewickley Creek in Allegheny County, Pennsylvania. It was built in 1959, so it is 66 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 2,730 vehicles a day, roughly 4% of them trucks, projected to reach 5,377 by 2032. The structure is 101 ft (30.8 m) long and 55 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesBig Sewickley C RD
CrossesBig Sewickley Creek
Location1 Mi. S.W. of SR 2003
RouteState Highway 0
Coordinates40.59633, -80.19123
Functional classUrban 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.
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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67 US tons
Inventory rating40 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length101 ft (30.8 m)
Longest span48 ft (14.6 m)
Deck width55 ft (16.9 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,730 (2023)
Projected traffic5,377 by 2032
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$540,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Big Sewickley C RD over Big Sewickley Creek built?

It was built in 1959, making it 66 years old in 2025.

What condition is Big Sewickley C RD over Big 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 Big Sewickley C RD over Big Sewickley Creek carry?

About 2,730 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Big Sewickley C RD over Big Sewickley Creek?

The structure is 101 ft (30.8 m) long with a longest span of 48 ft (14.6 m) and a deck 55 ft wide.

Who owns Big Sewickley C RD over Big Sewickley Creek?

It is owned by the State Highway Agency.