US Bridges

SR 60 over P&o RR Chartiers Creek

Fair

Allegheny County, Pennsylvania · Thornburg Bridge · Structure no. 000000000000768

Built
1980
45 years old, rebuilt 2023
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
685 ft
3 main spans
Daily traffic
18,064
2024 count
Owner
State
State Highway Agency

About this bridge

SR 60 over P&o RR Chartiers Creek is a steel continuous stringer/multi-beam or girder carrying SR 60 over P&o RR Chartiers Creek in Allegheny County, Pennsylvania. It was built in 1980 and reconstructed in 2023, so it is 45 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 18,064 vehicles a day, roughly 10% of them trucks, projected to reach 15,882 by 2032. The structure is 685 ft (208.8 m) long and 49 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSR 60
CrossesP&o RR Chartiers Creek
LocationThornburg Bridge
RouteState Highway 60
CountyAllegheny County
StatePennsylvania
Coordinates40.44014, -80.08297
Functional classUrban Other Principal 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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating53 US tons
Inventory rating32 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+3 approach)
Design loadHS 20
Structure length685 ft (208.8 m)
Longest span215 ft (65.5 m)
Deck width49 ft (14.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,064 (2024)
Projected traffic15,882 by 2032
Trucks10%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway, waterway and railroad
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$724,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 60 over P&o RR Chartiers Creek built?

It was built in 1980, making it 45 years old in 2025. It was reconstructed in 2023.

What condition is SR 60 over P&o RR Chartiers 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 SR 60 over P&o RR Chartiers Creek carry?

About 18,064 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is SR 60 over P&o RR Chartiers Creek?

The structure is 685 ft (208.8 m) long with a longest span of 215 ft (65.5 m) and a deck 49 ft wide.

Who owns SR 60 over P&o RR Chartiers Creek?

It is owned by the State Highway Agency.