US Bridges

SR4007 over SR0079 Nb&sb

Fair

Butler County, Pennsylvania · West Park RD NO.1 · Structure no. 000000000008120

Built
1964
61 years old, rebuilt 2010
Condition
Fair
inspected September 2024
Type
Girder and Floorbeam System
Steel Continuous
Length
181 ft
2 main spans
Daily traffic
1,369
2024 count
Owner
State
State Highway Agency

About this bridge

SR4007 over SR0079 Nb&sb is a steel continuous girder and floorbeam system carrying SR4007 over SR0079 Nb&sb in Butler County, Pennsylvania. It was built in 1964 and reconstructed in 2010, 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 1,369 vehicles a day, roughly 7% of them trucks, projected to reach 849 by 2032. The structure is 181 ft (55.2 m) long and 33 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSR4007
CrossesSR0079 Nb&sb
LocationWest Park RD NO.1
RouteState Highway 0
CountyButler County
StatePennsylvania
Coordinates40.94482, -80.14184
Functional classRural Major Collector

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 inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating58 US tons
Inventory rating35.1 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length181 ft (55.2 m)
Longest span88 ft (26.8 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,369 (2024)
Projected traffic849 by 2032
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

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$836,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR4007 over SR0079 Nb&sb built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 2010.

What condition is SR4007 over SR0079 Nb&sb 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 2024.

How much traffic does SR4007 over SR0079 Nb&sb carry?

About 1,369 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is SR4007 over SR0079 Nb&sb?

The structure is 181 ft (55.2 m) long with a longest span of 88 ft (26.8 m) and a deck 33 ft wide.

Who owns SR4007 over SR0079 Nb&sb?

It is owned by the State Highway Agency.