US Bridges

66th Avenue over SEPTA (main Line)

Fair

Philadelphia County, Pennsylvania · E of 10th Street 18A07 · Structure no. 000000000039267

Built
1913
112 years old, rebuilt 1930
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
48 ft
1 main span
Daily traffic
5,800
1979 count
Owner
City
City or Municipal Highway Agency

About this bridge

66th Avenue over SEPTA (main Line) is a steel stringer/multi-beam or girder carrying 66th Avenue over SEPTA (main Line) in Philadelphia County, Pennsylvania. It was built in 1913 and reconstructed in 1930, so it is 112 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 5,800 vehicles a day, projected to reach 8,120 by 1999. The structure is 48 ft (14.6 m) long and 78 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
Carries66th Avenue
CrossesSEPTA (main Line)
LocationE of 10th Street 18A07
RouteCity Street 0
CountyPhiladelphia County
StatePennsylvania
Coordinates40.05256, -75.13336
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 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 geometry9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating99 US tons
Inventory rating98.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length48 ft (14.6 m)
Longest span43 ft (13.1 m)
Deck width78 ft (23.9 m)
Roadway width50 ft (15.3 m)
Vertical clearance over deck25 ft (7.6 m)

Traffic and service

Average daily traffic5,800 (1979)
Projected traffic8,120 by 1999
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$678,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was 66th Avenue over SEPTA (main Line) built?

It was built in 1913, making it 112 years old in 2025. It was reconstructed in 1930.

What condition is 66th Avenue over SEPTA (main Line) 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 November 2023.

How much traffic does 66th Avenue over SEPTA (main Line) carry?

About 5,800 vehicles per day (1979 count).

How long is 66th Avenue over SEPTA (main Line)?

The structure is 48 ft (14.6 m) long with a longest span of 43 ft (13.1 m) and a deck 78 ft wide.

Who owns 66th Avenue over SEPTA (main Line)?

It is owned by the City or Municipal Highway Agency.