US Bridges

Lesnett Road over Mclaughlin Run

Good

Allegheny County, Pennsylvania · 100 W of Int. W/ SR 3004 · Structure no. 000000000054578

Built
2017
8 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
34 ft
1 main span
Daily traffic
8,397
2024 count
Owner
State
State Highway Agency

About this bridge

Lesnett Road over Mclaughlin Run is a concrete culvert carrying Lesnett Road over Mclaughlin Run in Allegheny County, Pennsylvania. It was built in 2017, so it is 8 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 8,397 vehicles a day, roughly 3% of them trucks, projected to reach 7,942 by 2034. The structure is 34 ft (10.4 m) long and 90 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesLesnett Road
CrossesMclaughlin Run
Location100 W of Int. W/ SR 3004
RouteState Highway 0
CountyAllegheny County
StatePennsylvania
Coordinates40.34492, -80.08271
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
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable 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 rating57.1 US tons
Inventory rating46.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length34 ft (10.4 m)
Longest span32 ft (9.8 m)
Deck width90 ft (27.4 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,397 (2024)
Projected traffic7,942 by 2034
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Lesnett Road over Mclaughlin Run built?

It was built in 2017, making it 8 years old in 2025.

What condition is Lesnett Road over Mclaughlin 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 Lesnett Road over Mclaughlin Run carry?

About 8,397 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is Lesnett Road over Mclaughlin Run?

The structure is 34 ft (10.4 m) long with a longest span of 32 ft (9.8 m) and a deck 90 ft wide.

Who owns Lesnett Road over Mclaughlin Run?

It is owned by the State Highway Agency.