US Bridges

SR0079 SB over Pa 68 T-323 B&p RR & Crk

Fair

Butler County, Pennsylvania · Harmony SB · Structure no. 000000000007867

Built
1962
63 years old, rebuilt 1989
Condition
Fair
inspected September 2023
Type
Girder and Floorbeam System
Steel Continuous
Length
628 ft
3 main spans
Daily traffic
15,193
2024 count
Owner
State
State Highway Agency

About this bridge

SR0079 SB over Pa 68 T-323 B&p RR & Crk is a steel continuous girder and floorbeam system carrying SR0079 SB over Pa 68 T-323 B&p RR & Crk in Butler County, Pennsylvania. It was built in 1962 and reconstructed in 1989, 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 15,193 vehicles a day, roughly 13% of them trucks, projected to reach 22,461 by 2032. The structure is 628 ft (191.4 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSR0079 SB
CrossesPa 68 T-323 B&p RR & Crk
LocationHarmony SB
RouteInterstate 79
Coordinates40.80153, -80.11823
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56 US tons
Inventory rating33 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+1 approach)
Design loadHS 20 + Mod
Structure length628 ft (191.4 m)
Longest span192 ft (58.5 m)
Deck width38 ft (11.6 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,193 (2024)
Projected traffic22,461 by 2032
Trucks13%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway, waterway and railroad
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.3 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SR0079 SB over Pa 68 T-323 B&p RR & Crk built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1989.

What condition is SR0079 SB over Pa 68 T-323 B&p RR & Crk 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 September 2023.

How much traffic does SR0079 SB over Pa 68 T-323 B&p RR & Crk carry?

About 15,193 vehicles per day (2024 count), of which roughly 13% are trucks.

How long is SR0079 SB over Pa 68 T-323 B&p RR & Crk?

The structure is 628 ft (191.4 m) long with a longest span of 192 ft (58.5 m) and a deck 38 ft wide.

Who owns SR0079 SB over Pa 68 T-323 B&p RR & Crk?

It is owned by the State Highway Agency.