US Bridges

Pa Tpk (pa 66) over Br of Sewickley Creek

Fair

Westmoreland County, Pennsylvania · Hempfield Twp · Structure no. 000000000036784

Built
1991
34 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete
Length
29 ft
2 main spans
Daily traffic
500
2008 count
Owner
Toll Authority
State Toll Authority

About this bridge

Pa Tpk (pa 66) over Br of Sewickley Creek is a concrete culvert carrying Pa Tpk (pa 66) over Br of Sewickley Creek in Westmoreland County, Pennsylvania. It was built in 1991, so it is 34 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 500 vehicles a day, roughly 10% of them trucks, projected to reach 651 by 2030. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesPa Tpk (pa 66)
CrossesBr of Sewickley Creek
LocationHempfield Twp
CountyWestmoreland County
StatePennsylvania
Coordinates40.2335, -79.60178
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length29 ft (8.8 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2008)
Projected traffic651 by 2030
Trucks10%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a toll road
National Highway SystemYes

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
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 Pa Tpk (pa 66) over Br of Sewickley Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is Pa Tpk (pa 66) over Br of 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 September 2023.

How much traffic does Pa Tpk (pa 66) over Br of Sewickley Creek carry?

About 500 vehicles per day (2008 count), of which roughly 10% are trucks.

How long is Pa Tpk (pa 66) over Br of Sewickley Creek?

The structure is 29 ft (8.8 m) long with a longest span of 12 ft (3.7 m).

Who owns Pa Tpk (pa 66) over Br of Sewickley Creek?

It is owned by the State Toll Authority.