US Bridges

SR 0079 NB over Twp RD 969

Fair

Butler County, Pennsylvania · Ehrman NB · Structure no. 000000000007857

Built
1968
57 years old, rebuilt 1989
Condition
Fair
inspected January 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
109 ft
3 main spans
Daily traffic
22,495
2024 count
Owner
State
State Highway Agency

About this bridge

SR 0079 NB over Twp RD 969 is a prestressed concrete box beam or girders - multiple carrying SR 0079 NB over Twp RD 969 in Butler County, Pennsylvania. It was built in 1968 and reconstructed in 1989, so it is 57 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 22,495 vehicles a day, roughly 16% of them trucks, projected to reach 25,915 by 2032. The structure is 109 ft (33.2 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSR 0079 NB
CrossesTwp RD 969
LocationEhrman NB
RouteInterstate 79
CountyButler County
StatePennsylvania
Coordinates40.73629, -80.10484
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
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 geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78 US tons
Inventory rating42 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length109 ft (33.2 m)
Longest span48 ft (14.6 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,495 (2024)
Projected traffic25,915 by 2032
Trucks16%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$406,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 0079 NB over Twp RD 969 built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 1989.

What condition is SR 0079 NB over Twp RD 969 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 January 2023.

How much traffic does SR 0079 NB over Twp RD 969 carry?

About 22,495 vehicles per day (2024 count), of which roughly 16% are trucks.

How long is SR 0079 NB over Twp RD 969?

The structure is 109 ft (33.2 m) long with a longest span of 48 ft (14.6 m) and a deck 43 ft wide.

Who owns SR 0079 NB over Twp RD 969?

It is owned by the State Highway Agency.