US Bridges

Herron Av over Lowries Run

Good

Allegheny County, Pennsylvania · 75 S of Rt 65 · Structure no. 000000000048285

Built
2013
12 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
83 ft
1 main span
Daily traffic
1,000
2013 count
Owner
City
City or Municipal Highway Agency

About this bridge

Herron Av over Lowries Run is a steel stringer/multi-beam or girder carrying Herron Av over Lowries Run in Allegheny County, Pennsylvania. It was built in 2013, so it is 12 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 1,000 vehicles a day, roughly 1% of them trucks, projected to reach 306 by 2032. The structure is 83 ft (25.3 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesHerron Av
CrossesLowries Run
Location75 S of Rt 65
RouteCity Street 0
CountyAllegheny County
StatePennsylvania
Coordinates40.50769, -80.08976
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 protection7 GoodSome minor problems.
Last inspectionOctober 2023
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 adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating66 US tons
Inventory rating50.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length83 ft (25.3 m)
Longest span80 ft (24.4 m)
Deck width36 ft (11 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2013)
Projected traffic306 by 2032
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Herron Av over Lowries Run built?

It was built in 2013, making it 12 years old in 2025.

What condition is Herron Av over Lowries 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 October 2023.

How much traffic does Herron Av over Lowries Run carry?

About 1,000 vehicles per day (2013 count), of which roughly 1% are trucks.

How long is Herron Av over Lowries Run?

The structure is 83 ft (25.3 m) long with a longest span of 80 ft (24.4 m) and a deck 36 ft wide.

Who owns Herron Av over Lowries Run?

It is owned by the City or Municipal Highway Agency.