US Bridges

SR 0271 over Mill Creek

Fair

Westmoreland County, Pennsylvania · Ligonier Township · Structure no. 000000000036180

Built
1940
85 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
61 ft
1 main span
Daily traffic
4,270
2023 count
Owner
State
State Highway Agency

About this bridge

SR 0271 over Mill Creek is a steel stringer/multi-beam or girder carrying SR 0271 over Mill Creek in Westmoreland County, Pennsylvania. It was built in 1940, so it is 85 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 5 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 4,270 vehicles a day, roughly 12% of them trucks, projected to reach 6,733 by 2032. The structure is 61 ft (18.6 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSR 0271
CrossesMill Creek
LocationLigonier Township
RouteState Highway 271
Coordinates40.26077, -79.19504
Functional classRural Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48 US tons
Inventory rating29 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length61 ft (18.6 m)
Longest span58 ft (17.7 m)
Deck width35 ft (10.7 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,270 (2023)
Projected traffic6,733 by 2032
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$86,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 0271 over Mill Creek built?

It was built in 1940, making it 85 years old in 2025.

What condition is SR 0271 over Mill 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 2023.

How much traffic does SR 0271 over Mill Creek carry?

About 4,270 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is SR 0271 over Mill Creek?

The structure is 61 ft (18.6 m) long with a longest span of 58 ft (17.7 m) and a deck 35 ft wide.

Who owns SR 0271 over Mill Creek?

It is owned by the State Highway Agency.