US Bridges

SR 4018 over Turtle Creek

Fair

Westmoreland County, Pennsylvania · Trafford Borough · Structure no. 000000000036695

Built
1925
100 years old, rebuilt 2010
Condition
Fair
inspected February 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
73 ft
1 main span
Daily traffic
5,838
2024 count
Owner
State
State Highway Agency

About this bridge

SR 4018 over Turtle Creek is a steel stringer/multi-beam or girder carrying SR 4018 over Turtle Creek in Westmoreland County, Pennsylvania. It was built in 1925 and reconstructed in 2010, so it is 100 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 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 5,838 vehicles a day, roughly 5% of them trucks, projected to reach 8,696 by 2032. The structure is 73 ft (22.3 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSR 4018
CrossesTurtle Creek
LocationTrafford Borough
RouteState Highway 0
CountyWestmoreland County
StatePennsylvania
Coordinates40.38905, -79.7507
Functional classUrban Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79 US tons
Inventory rating61 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length73 ft (22.3 m)
Longest span72 ft (21.9 m)
Deck width31 ft (9.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,838 (2024)
Projected traffic8,696 by 2032
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$390,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 4018 over Turtle Creek built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 2010.

What condition is SR 4018 over Turtle 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 February 2022.

How much traffic does SR 4018 over Turtle Creek carry?

About 5,838 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is SR 4018 over Turtle Creek?

The structure is 73 ft (22.3 m) long with a longest span of 72 ft (21.9 m) and a deck 31 ft wide.

Who owns SR 4018 over Turtle Creek?

It is owned by the State Highway Agency.