US Bridges

34th Street over AMTRAK (nec))

Fair

Philadelphia County, Pennsylvania · N. of Mantua St. 28B09 · Structure no. 000000000039261

Built
1994
31 years old
Condition
Fair
inspected December 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
455 ft
6 main spans
Daily traffic
14,200
1988 count
Owner
City
City or Municipal Highway Agency

About this bridge

34th Street over AMTRAK (nec)) is a steel stringer/multi-beam or girder carrying 34th Street over AMTRAK (nec)) in Philadelphia County, Pennsylvania. It was built in 1994, so it is 31 years old, younger 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 5 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 14,200 vehicles a day, roughly 3% of them trucks, projected to reach 14,400 by 1980. The structure is 455 ft (138.7 m) long and 71 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
Carries34th Street
CrossesAMTRAK (nec))
LocationN. of Mantua St. 28B09
RouteCity Street 0
CountyPhiladelphia County
StatePennsylvania
Coordinates39.96775, -75.19232
Functional classUrban Other Principal 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.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating66 US tons
Inventory rating39 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans6
Design loadUnknown
Structure length455 ft (138.7 m)
Longest span93 ft (28.3 m)
Deck width71 ft (21.6 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deck25 ft (7.6 m)

Traffic and service

Average daily traffic14,200 (1988)
Projected traffic14,400 by 1980
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$13.1 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was 34th Street over AMTRAK (nec)) built?

It was built in 1994, making it 31 years old in 2025.

What condition is 34th Street over AMTRAK (nec)) 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 December 2022.

How much traffic does 34th Street over AMTRAK (nec)) carry?

About 14,200 vehicles per day (1988 count), of which roughly 3% are trucks.

How long is 34th Street over AMTRAK (nec))?

The structure is 455 ft (138.7 m) long with a longest span of 93 ft (28.3 m) and a deck 71 ft wide.

Who owns 34th Street over AMTRAK (nec))?

It is owned by the City or Municipal Highway Agency.