US Bridges

Walton Road over Lobbs Run

Good

Allegheny County, Pennsylvania · 1/4 Mi. S.E. of SR 3018 · Structure no. 000000000001732

Built
1938
87 years old, rebuilt 2009
Condition
Good
inspected November 2023
Type
Slab
Concrete
Length
34 ft
1 main span
Daily traffic
609
2024 count
Owner
State
State Highway Agency

About this bridge

Walton Road over Lobbs Run is a concrete slab carrying Walton Road over Lobbs Run in Allegheny County, Pennsylvania. It was built in 1938 and reconstructed in 2009, so it is 87 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 609 vehicles a day, roughly 2% of them trucks, projected to reach 1,538 by 2032. The structure is 34 ft (10.4 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesWalton Road
CrossesLobbs Run
Location1/4 Mi. S.E. of SR 3018
RouteState Highway 0
CountyAllegheny County
StatePennsylvania
Coordinates40.26711, -79.92317
Functional classUrban Local

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78 US tons
Inventory rating46 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span30 ft (9.1 m)
Deck width26 ft (7.9 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic609 (2024)
Projected traffic1,538 by 2032
Trucks2%
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$120,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Walton Road over Lobbs Run built?

It was built in 1938, making it 87 years old in 2025. It was reconstructed in 2009.

What condition is Walton Road over Lobbs 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 November 2023.

How much traffic does Walton Road over Lobbs Run carry?

About 609 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is Walton Road over Lobbs Run?

The structure is 34 ft (10.4 m) long with a longest span of 30 ft (9.1 m) and a deck 26 ft wide.

Who owns Walton Road over Lobbs Run?

It is owned by the State Highway Agency.