US Bridges

SR0079 Nb&sb over Black Run

Fair

Butler County, Pennsylvania · North of Portersville · Structure no. 000000000007883

Built
1964
61 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete
Length
21 ft
1 main span
Daily traffic
29,114
2024 count
Owner
State
State Highway Agency

About this bridge

SR0079 Nb&sb over Black Run is a concrete culvert carrying SR0079 Nb&sb over Black Run in Butler County, Pennsylvania. It was built in 1964, so it is 61 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 29,114 vehicles a day, roughly 19% of them trucks, projected to reach 32,383 by 2032. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSR0079 Nb&sb
CrossesBlack Run
LocationNorth of Portersville
RouteInterstate 79
CountyButler County
StatePennsylvania
Coordinates41.01636, -80.11478
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51 US tons
Inventory rating31 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span21 ft (6.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,114 (2024)
Projected traffic32,383 by 2032
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$579,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR0079 Nb&sb over Black Run built?

It was built in 1964, making it 61 years old in 2025.

What condition is SR0079 Nb&sb over Black Run 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 October 2023.

How much traffic does SR0079 Nb&sb over Black Run carry?

About 29,114 vehicles per day (2024 count), of which roughly 19% are trucks.

How long is SR0079 Nb&sb over Black Run?

The structure is 21 ft (6.4 m) long with a longest span of 21 ft (6.4 m).

Who owns SR0079 Nb&sb over Black Run?

It is owned by the State Highway Agency.