US Bridges

Hill Top RD over SR 0079 Nb-Sb

Good

Allegheny County, Pennsylvania · 2 1/2 Mi. S.Of Rslyn Frms · Structure no. 000000000001791

Built
1967
58 years old
Condition
Good
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
295 ft
3 main spans
Daily traffic
2,892
2023 count
Owner
State
State Highway Agency

About this bridge

Hill Top RD over SR 0079 Nb-Sb is a prestressed concrete continuous box beam or girders - multiple carrying Hill Top RD over SR 0079 Nb-Sb in Allegheny County, Pennsylvania. It was built in 1967, so it is 58 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,892 vehicles a day, roughly 2% of them trucks, projected to reach 6,454 by 2032. The structure is 295 ft (89.9 m) long and 39 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesHill Top RD
CrossesSR 0079 Nb-Sb
Location2 1/2 Mi. S.Of Rslyn Frms
RouteState Highway 0
CountyAllegheny County
StatePennsylvania
Coordinates40.38971, -80.09933
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.8 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3 (+1 approach)
Design loadHL 93
Structure length295 ft (89.9 m)
Longest span93 ft (28.3 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,892 (2023)
Projected traffic6,454 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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$853,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Hill Top RD over SR 0079 Nb-Sb built?

It was built in 1967, making it 58 years old in 2025.

What condition is Hill Top RD over SR 0079 Nb-Sb in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does Hill Top RD over SR 0079 Nb-Sb carry?

About 2,892 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Hill Top RD over SR 0079 Nb-Sb?

The structure is 295 ft (89.9 m) long with a longest span of 93 ft (28.3 m) and a deck 39 ft wide.

Who owns Hill Top RD over SR 0079 Nb-Sb?

It is owned by the State Highway Agency.