US Bridges

42nd Street over AMTRAK (pittsburgh Ml)

Good

Philadelphia County, Pennsylvania · S of Poplar ST - 3589-G05 · Structure no. 000000000039260

Built
1910
115 years old, rebuilt 2006
Condition
Good
inspected February 2023
Type
Arch - Thru
Steel
Length
308 ft
1 main span
Daily traffic
8,000
2016 count
Owner
City
City or Municipal Highway Agency

About this bridge

42nd Street over AMTRAK (pittsburgh Ml) is a steel arch - thru carrying 42nd Street over AMTRAK (pittsburgh Ml) in Philadelphia County, Pennsylvania. It was built in 1910 and reconstructed in 2006, so it is 115 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 8,000 vehicles a day, roughly 25% of them trucks, projected to reach 8,500 by 2026. The structure is 308 ft (93.9 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries42nd Street
CrossesAMTRAK (pittsburgh Ml)
LocationS of Poplar ST - 3589-G05
RouteCity Street 0
Coordinates39.9722, -75.2086
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating45.7 US tons
Inventory rating35.1 US tons

Structure

Structure typeArch - Thru
MaterialSteel
DeckNot applicable
Main spans1 (+2 approach)
Design loadHL 93
Structure length308 ft (93.9 m)
Longest span262 ft (79.9 m)
Deck width35 ft (10.8 m)
Roadway width33 ft (10 m)
Vertical clearance over deck15 ft (4.5 m)

Traffic and service

Average daily traffic8,000 (2016)
Projected traffic8,500 by 2026
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.9 mi (3 km)
TollOn a toll 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$2.1 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was 42nd Street over AMTRAK (pittsburgh Ml) built?

It was built in 1910, making it 115 years old in 2025. It was reconstructed in 2006.

What condition is 42nd Street over AMTRAK (pittsburgh Ml) 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 February 2023.

How much traffic does 42nd Street over AMTRAK (pittsburgh Ml) carry?

About 8,000 vehicles per day (2016 count), of which roughly 25% are trucks.

How long is 42nd Street over AMTRAK (pittsburgh Ml)?

The structure is 308 ft (93.9 m) long with a longest span of 262 ft (79.9 m) and a deck 35 ft wide.

Who owns 42nd Street over AMTRAK (pittsburgh Ml)?

It is owned by the City or Municipal Highway Agency.