US Bridges

Kelso RD over N Branch of Robinson Run

Good

Allegheny County, Pennsylvania · 150 NW of SR 3108 · Structure no. 000000000046000

Built
2010
15 years old
Condition
Good
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
30 ft
1 main span
Daily traffic
606
2024 count
Owner
State
State Highway Agency

About this bridge

Kelso RD over N Branch of Robinson Run is a prestressed concrete box beam or girders - multiple carrying Kelso RD over N Branch of Robinson Run in Allegheny County, Pennsylvania. It was built in 2010, so it is 15 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 606 vehicles a day, roughly 9% of them trucks, projected to reach 832 by 2032. The structure is 30 ft (9.1 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesKelso RD
CrossesN Branch of Robinson Run
Location150 NW of SR 3108
RouteState Highway 0
Coordinates40.40627, -80.23491
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating89.9 US tons
Inventory rating54 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span30 ft (9.1 m)
Deck width30 ft (9 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic606 (2024)
Projected traffic832 by 2032
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Kelso RD over N Branch of Robinson Run built?

It was built in 2010, making it 15 years old in 2025.

What condition is Kelso RD over N Branch of 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 May 2023.

How much traffic does Kelso RD over N Branch of Robinson Run carry?

About 606 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is Kelso RD over N Branch of Robinson Run?

The structure is 30 ft (9.1 m) long with a longest span of 30 ft (9.1 m) and a deck 30 ft wide.

Who owns Kelso RD over N Branch of Robinson Run?

It is owned by the State Highway Agency.