US Bridges

North Branch Road over Br. Robinson Run

Good

Allegheny County, Pennsylvania · 50FT W of SR 3063 · Structure no. 000000000045688

Built
2009
16 years old
Condition
Good
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
66 ft
1 main span
Daily traffic
6,061
2024 count
Owner
State
State Highway Agency

About this bridge

North Branch Road over Br. Robinson Run is a prestressed concrete box beam or girders - multiple carrying North Branch Road over Br. Robinson Run in Allegheny County, Pennsylvania. It was built in 2009, so it is 16 years old, younger 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 6,061 vehicles a day, roughly 4% of them trucks, projected to reach 6,411 by 2032. The structure is 66 ft (20.1 m) long and 45 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesNorth Branch Road
CrossesBr. Robinson Run
Location50FT W of SR 3063
RouteState Highway 978
CountyAllegheny County
StatePennsylvania
Coordinates40.41889, -80.20221
Functional classUrban Minor Arterial

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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating57 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length66 ft (20.1 m)
Longest span64 ft (19.5 m)
Deck width45 ft (13.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,061 (2024)
Projected traffic6,411 by 2032
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was North Branch Road over Br. Robinson Run built?

It was built in 2009, making it 16 years old in 2025.

What condition is North Branch Road over Br. Robinson Run 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 June 2024.

How much traffic does North Branch Road over Br. Robinson Run carry?

About 6,061 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is North Branch Road over Br. Robinson Run?

The structure is 66 ft (20.1 m) long with a longest span of 64 ft (19.5 m) and a deck 45 ft wide.

Who owns North Branch Road over Br. Robinson Run?

It is owned by the State Highway Agency.