US Bridges

Mcardle Rdwy over Norfolk Southern R/R

Fair

Allegheny County, Pennsylvania · 064 Pj Mcardle Rdwy Via 1 · Structure no. 000000000002429

Built
1933
92 years old, rebuilt 2012
Condition
Fair
inspected June 2024
Type
Truss - Thru
Steel
Length
554 ft
1 main span
Daily traffic
9,028
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Mcardle Rdwy over Norfolk Southern R/R is a steel truss - thru carrying Mcardle Rdwy over Norfolk Southern R/R in Allegheny County, Pennsylvania. It was built in 1933 and reconstructed in 2012, so it is 92 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 9,028 vehicles a day, roughly 1% of them trucks, projected to reach 10,175 by 2037. The structure is 554 ft (168.9 m) long and 36 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMcardle Rdwy
CrossesNorfolk Southern R/R
Location064 Pj Mcardle Rdwy Via 1
RouteCity Street 0
CountyAllegheny County
StatePennsylvania
Coordinates40.42782, -79.99282
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment6: Equal to present minimum criteria
Operating rating88 US tons
Inventory rating53 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+11 approach)
Design loadH 20
Structure length554 ft (168.9 m)
Longest span215 ft (65.5 m)
Deck width36 ft (11.1 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deck13 ft (3.8 m)

Traffic and service

Average daily traffic9,028 (2020)
Projected traffic10,175 by 2037
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.1 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mcardle Rdwy over Norfolk Southern R/R built?

It was built in 1933, making it 92 years old in 2025. It was reconstructed in 2012.

What condition is Mcardle Rdwy over Norfolk Southern R/R 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 June 2024.

How much traffic does Mcardle Rdwy over Norfolk Southern R/R carry?

About 9,028 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Mcardle Rdwy over Norfolk Southern R/R?

The structure is 554 ft (168.9 m) long with a longest span of 215 ft (65.5 m) and a deck 36 ft wide.

Who owns Mcardle Rdwy over Norfolk Southern R/R?

It is owned by the City or Municipal Highway Agency.