US Bridges

SR0079 NB over Twp RD 347

Fair

Butler County, Pennsylvania · North of Harmony · Structure no. 000000000007870

Built
1962
63 years old, rebuilt 2020
Condition
Fair
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
32 ft
1 main span
Daily traffic
14,985
2024 count
Owner
State
State Highway Agency

About this bridge

SR0079 NB over Twp RD 347 is a prestressed concrete box beam or girders - multiple carrying SR0079 NB over Twp RD 347 in Butler County, Pennsylvania. It was built in 1962 and reconstructed in 2020, 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 6 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 14,985 vehicles a day, roughly 14% of them trucks, projected to reach 14,990 by 2032. The structure is 32 ft (9.8 m) long and 46 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSR0079 NB
CrossesTwp RD 347
LocationNorth of Harmony
RouteInterstate 79
CountyButler County
StatePennsylvania
Coordinates40.85572, -80.10633
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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69 US tons
Inventory rating41 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length32 ft (9.8 m)
Longest span31 ft (9.4 m)
Deck width46 ft (14.1 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,985 (2024)
Projected traffic14,990 by 2032
Trucks14%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 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 Twp RD 347 built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2020.

What condition is SR0079 NB over Twp RD 347 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 Twp RD 347 carry?

About 14,985 vehicles per day (2024 count), of which roughly 14% are trucks.

How long is SR0079 NB over Twp RD 347?

The structure is 32 ft (9.8 m) long with a longest span of 31 ft (9.4 m) and a deck 46 ft wide.

Who owns SR0079 NB over Twp RD 347?

It is owned by the State Highway Agency.