US Bridges

T-549 Thermo Vill over Pa Tpk (I-76)

Fair

Westmoreland County, Pennsylvania · East of New Stanton · Structure no. 000000000036843

Built
1997
28 years old
Condition
Fair
inspected June 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
158 ft
2 main spans
Daily traffic
200
1992 count
Owner
Toll Authority
State Toll Authority

About this bridge

T-549 Thermo Vill over Pa Tpk (I-76) is a steel stringer/multi-beam or girder carrying T-549 Thermo Vill over Pa Tpk (I-76) in Westmoreland County, Pennsylvania. It was built in 1997, so it is 28 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 200 vehicles a day, roughly 6% of them trucks, projected to reach 315 by 2030. The structure is 158 ft (48.2 m) long and 33 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesT-549 Thermo Vill
CrossesPa Tpk (I-76)
LocationEast of New Stanton
RouteCity Street 0
CountyWestmoreland County
StatePennsylvania
Coordinates40.21333, -79.59167
Functional classUrban Local

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.
Last inspectionJune 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating78 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length158 ft (48.2 m)
Longest span150 ft (45.7 m)
Deck width33 ft (10.2 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (1992)
Projected traffic315 by 2030
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$595,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was T-549 Thermo Vill over Pa Tpk (I-76) built?

It was built in 1997, making it 28 years old in 2025.

What condition is T-549 Thermo Vill over Pa Tpk (I-76) 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 2022.

How much traffic does T-549 Thermo Vill over Pa Tpk (I-76) carry?

About 200 vehicles per day (1992 count), of which roughly 6% are trucks.

How long is T-549 Thermo Vill over Pa Tpk (I-76)?

The structure is 158 ft (48.2 m) long with a longest span of 150 ft (45.7 m) and a deck 33 ft wide.

Who owns T-549 Thermo Vill over Pa Tpk (I-76)?

It is owned by the State Toll Authority.