US Bridges

20th Street over Abandoned Conrail

Fair

Philadelphia County, Pennsylvania · N.Callowhill St. 28E10 · Structure no. 000000000039125

Built
1898
127 years old, rebuilt 1964
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
63 ft
1 main span
Daily traffic
4,500
1980 count
Owner
City
City or Municipal Highway Agency

About this bridge

20th Street over Abandoned Conrail is a steel stringer/multi-beam or girder carrying 20th Street over Abandoned Conrail in Philadelphia County, Pennsylvania. It was built in 1898 and reconstructed in 1964, so it is 127 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 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 4,500 vehicles a day, projected to reach 6,300 by 2000. The structure is 63 ft (19.2 m) long and 28 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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Carries20th Street
CrossesAbandoned Conrail
LocationN.Callowhill St. 28E10
RouteCity Street 0
CountyPhiladelphia County
StatePennsylvania
Coordinates39.96153, -75.17141
Functional classUrban Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
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 geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.1 US tons
Inventory rating46 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length63 ft (19.2 m)
Longest span58 ft (17.7 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,500 (1980)
Projected traffic6,300 by 2000
Trucks—
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesOther
Detour if closed0.6 mi (1 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 proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$340,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was 20th Street over Abandoned Conrail built?

It was built in 1898, making it 127 years old in 2025. It was reconstructed in 1964.

What condition is 20th Street over Abandoned Conrail 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 March 2023.

How much traffic does 20th Street over Abandoned Conrail carry?

About 4,500 vehicles per day (1980 count).

How long is 20th Street over Abandoned Conrail?

The structure is 63 ft (19.2 m) long with a longest span of 58 ft (17.7 m) and a deck 28 ft wide.

Who owns 20th Street over Abandoned Conrail?

It is owned by the City or Municipal Highway Agency.