US Bridges

SR 3111 over I-76 Trib Sewickley Crk

Good

Westmoreland County, Pennsylvania · New Stanton · Structure no. 000000000044412

Built
2008
17 years old
Condition
Good
inspected May 2022
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
359 ft
2 main spans
Daily traffic
10,431
2024 count
Owner
State
State Highway Agency

About this bridge

SR 3111 over I-76 Trib Sewickley Crk is a steel continuous stringer/multi-beam or girder carrying SR 3111 over I-76 Trib Sewickley Crk in Westmoreland County, Pennsylvania. It was built in 2008, so it is 17 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 10,431 vehicles a day, roughly 6% of them trucks, projected to reach 12,140 by 2040. The structure is 359 ft (109.4 m) long and 45 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesSR 3111
CrossesI-76 Trib Sewickley Crk
LocationNew Stanton
RouteState Highway 0
CountyWestmoreland County
StatePennsylvania
Coordinates40.22583, -79.60936
Functional classUrban Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89 US tons
Inventory rating69 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length359 ft (109.4 m)
Longest span177 ft (53.9 m)
Deck width45 ft (13.6 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,431 (2024)
Projected traffic12,140 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed8.1 mi (13 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 3111 over I-76 Trib Sewickley Crk built?

It was built in 2008, making it 17 years old in 2025.

What condition is SR 3111 over I-76 Trib Sewickley Crk 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 May 2022.

How much traffic does SR 3111 over I-76 Trib Sewickley Crk carry?

About 10,431 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is SR 3111 over I-76 Trib Sewickley Crk?

The structure is 359 ft (109.4 m) long with a longest span of 177 ft (53.9 m) and a deck 45 ft wide.

Who owns SR 3111 over I-76 Trib Sewickley Crk?

It is owned by the State Highway Agency.