US Bridges

Pa Tpk (PA-66) over T-690

Good

Westmoreland County, Pennsylvania · Hempfield Twp · Structure no. 000000000036794

Built
1991
34 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
100 ft
1 main span
Daily traffic
3,763
1995 count
Owner
Toll Authority
State Toll Authority

About this bridge

Pa Tpk (PA-66) over T-690 is a steel stringer/multi-beam or girder carrying Pa Tpk (PA-66) over T-690 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,763 vehicles a day, roughly 14% of them trucks, projected to reach 5,713 by 2030. The structure is 100 ft (30.5 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesPa Tpk (PA-66)
CrossesT-690
LocationHempfield Twp
CountyWestmoreland County
StatePennsylvania
Coordinates40.30001, -79.60728
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating101 US tons
Inventory rating61 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length100 ft (30.5 m)
Longest span94 ft (28.7 m)
Deck width46 ft (13.9 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,763 (1995)
Projected traffic5,713 by 2030
Trucks14%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Pa Tpk (PA-66) over T-690 built?

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

What condition is Pa Tpk (PA-66) over T-690 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

How much traffic does Pa Tpk (PA-66) over T-690 carry?

About 3,763 vehicles per day (1995 count), of which roughly 14% are trucks.

How long is Pa Tpk (PA-66) over T-690?

The structure is 100 ft (30.5 m) long with a longest span of 94 ft (28.7 m) and a deck 46 ft wide.

Who owns Pa Tpk (PA-66) over T-690?

It is owned by the State Toll Authority.