US Bridges

SR 0079 NB over Twp. Rd. 311 Boundary RD

Good

Butler County, Pennsylvania · North Boundary NB · Structure no. 000000000055776

Built
2020
5 years old
Condition
Good
inspected December 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
62 ft
1 main span
Daily traffic
22,495
2024 count
Owner
State
State Highway Agency

About this bridge

SR 0079 NB over Twp. Rd. 311 Boundary RD is a steel stringer/multi-beam or girder carrying SR 0079 NB over Twp. Rd. 311 Boundary RD in Butler County, Pennsylvania. It was built in 2020, so it is 5 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 22,495 vehicles a day, roughly 16% of them trucks, projected to reach 25,915 by 2032. The structure is 62 ft (18.9 m) long and 64 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSR 0079 NB
CrossesTwp. Rd. 311 Boundary RD
LocationNorth Boundary NB
RouteInterstate 79
CountyButler County
StatePennsylvania
Coordinates40.72404, -80.10154
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionDecember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.1 US tons
Inventory rating55 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length62 ft (18.9 m)
Longest span58 ft (17.7 m)
Deck width64 ft (19.4 m)
Roadway width60 ft (18.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,495 (2024)
Projected traffic25,915 by 2032
Trucks16%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 0079 NB over Twp. Rd. 311 Boundary RD built?

It was built in 2020, making it 5 years old in 2025.

What condition is SR 0079 NB over Twp. Rd. 311 Boundary RD 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 December 2022.

How much traffic does SR 0079 NB over Twp. Rd. 311 Boundary RD carry?

About 22,495 vehicles per day (2024 count), of which roughly 16% are trucks.

How long is SR 0079 NB over Twp. Rd. 311 Boundary RD?

The structure is 62 ft (18.9 m) long with a longest span of 58 ft (17.7 m) and a deck 64 ft wide.

Who owns SR 0079 NB over Twp. Rd. 311 Boundary RD?

It is owned by the State Highway Agency.