US Bridges

SR 0079 SB over T-311 N Boundary Road

Good

Butler County, Pennsylvania · 2.7 MI N SR 228 Intersect · Structure no. 000000000055777

Built
2019
6 years old
Condition
Good
inspected November 2021
Type
Stringer/Multi-beam or Girder
Steel
Length
62 ft
1 main span
Daily traffic
23,966
2024 count
Owner
State
State Highway Agency

About this bridge

SR 0079 SB over T-311 N Boundary Road is a steel stringer/multi-beam or girder carrying SR 0079 SB over T-311 N Boundary Road in Butler County, Pennsylvania. It was built in 2019, so it is 6 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 23,966 vehicles a day, roughly 15% of them trucks, projected to reach 27,804 by 2043. 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 SB
CrossesT-311 N Boundary Road
Location2.7 MI N SR 228 Intersect
RouteInterstate 79
CountyButler County
StatePennsylvania
Coordinates40.72388, -80.10193
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 inspectionNovember 2021
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 traffic23,966 (2024)
Projected traffic27,804 by 2043
Trucks15%
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 SB over T-311 N Boundary Road built?

It was built in 2019, making it 6 years old in 2025.

What condition is SR 0079 SB over T-311 N Boundary Road 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 November 2021.

How much traffic does SR 0079 SB over T-311 N Boundary Road carry?

About 23,966 vehicles per day (2024 count), of which roughly 15% are trucks.

How long is SR 0079 SB over T-311 N Boundary Road?

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 SB over T-311 N Boundary Road?

It is owned by the State Highway Agency.