US Bridges

SR0079 NB over T302 Tollgate School RD

Fair

Butler County, Pennsylvania · South of Zelienople · Structure no. 000000000007861

Built
1962
63 years old, rebuilt 2004
Condition
Fair
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
35 ft
1 main span
Daily traffic
17,908
2024 count
Owner
State
State Highway Agency

About this bridge

SR0079 NB over T302 Tollgate School RD is a prestressed concrete box beam or girders - multiple carrying SR0079 NB over T302 Tollgate School RD in Butler County, Pennsylvania. It was built in 1962 and reconstructed in 2004, so it is 63 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 17,908 vehicles a day, roughly 12% of them trucks, projected to reach 21,073 by 2032. The structure is 35 ft (10.7 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSR0079 NB
CrossesT302 Tollgate School RD
LocationSouth of Zelienople
RouteInterstate 79
Coordinates40.77622, -80.12699
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86 US tons
Inventory rating33 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length35 ft (10.7 m)
Longest span33 ft (10.1 m)
Deck width52 ft (15.7 m)
Roadway width49 ft (14.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,908 (2024)
Projected traffic21,073 by 2032
Trucks12%
Lanes on structure3
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR0079 NB over T302 Tollgate School RD built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2004.

What condition is SR0079 NB over T302 Tollgate School RD 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 July 2024.

How much traffic does SR0079 NB over T302 Tollgate School RD carry?

About 17,908 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is SR0079 NB over T302 Tollgate School RD?

The structure is 35 ft (10.7 m) long with a longest span of 33 ft (10.1 m) and a deck 52 ft wide.

Who owns SR0079 NB over T302 Tollgate School RD?

It is owned by the State Highway Agency.