US Bridges

North Branch RD over North Branch Robinson Rn

Fair

Allegheny County, Pennsylvania · 200 S.W. of SR 3051 · Structure no. 000000000001883

Built
1934
91 years old, rebuilt 2004
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
32 ft
1 main span
Daily traffic
3,452
2024 count
Owner
State
State Highway Agency

About this bridge

North Branch RD over North Branch Robinson Rn is a steel stringer/multi-beam or girder carrying North Branch RD over North Branch Robinson Rn in Allegheny County, Pennsylvania. It was built in 1934 and reconstructed in 2004, so it is 91 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 3,452 vehicles a day, roughly 3% of them trucks, projected to reach 5,312 by 2032. The structure is 32 ft (9.8 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNorth Branch RD
CrossesNorth Branch Robinson Rn
Location200 S.W. of SR 3051
RouteState Highway 0
CountyAllegheny County
StatePennsylvania
Coordinates40.40571, -80.23507
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating105.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span29 ft (8.8 m)
Deck width30 ft (9 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,452 (2024)
Projected traffic5,312 by 2032
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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$56,000
NavigationNo navigation control on waterway

Frequently asked questions

When was North Branch RD over North Branch Robinson Rn built?

It was built in 1934, making it 91 years old in 2025. It was reconstructed in 2004.

What condition is North Branch RD over North Branch Robinson Rn 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 May 2023.

How much traffic does North Branch RD over North Branch Robinson Rn carry?

About 3,452 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is North Branch RD over North Branch Robinson Rn?

The structure is 32 ft (9.8 m) long with a longest span of 29 ft (8.8 m) and a deck 30 ft wide.

Who owns North Branch RD over North Branch Robinson Rn?

It is owned by the State Highway Agency.