US Bridges

Ramp C over Nsrc; Mlk Drive

Fair

Philadelphia County, Pennsylvania · 1MI.S.CITY Line 3479J10 · Structure no. 000000000041061

Built
1960
65 years old, rebuilt 1985
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
279 ft
2 main spans
Daily traffic
30,599
2024 count
Owner
State
State Highway Agency

About this bridge

Ramp C over Nsrc; Mlk Drive is a steel stringer/multi-beam or girder carrying Ramp C over Nsrc; Mlk Drive in Philadelphia County, Pennsylvania. It was built in 1960 and reconstructed in 1985, so it is 65 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 30,599 vehicles a day, roughly 7% of them trucks, projected to reach 31,990 by 2032. The structure is 279 ft (85 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesRamp C
CrossesNsrc; Mlk Drive
Location1MI.S.CITY Line 3479J10
RouteState Highway 0
CountyPhiladelphia County
StatePennsylvania
Coordinates40.00573, -75.19381
Functional classUrban Principal Arterial - Interstate

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating72 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length279 ft (85 m)
Longest span139 ft (42.4 m)
Deck width34 ft (10.5 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30,599 (2024)
Projected traffic31,990 by 2032
Trucks7%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ramp C over Nsrc; Mlk Drive built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1985.

What condition is Ramp C over Nsrc; Mlk Drive 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 Ramp C over Nsrc; Mlk Drive carry?

About 30,599 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is Ramp C over Nsrc; Mlk Drive?

The structure is 279 ft (85 m) long with a longest span of 139 ft (42.4 m) and a deck 34 ft wide.

Who owns Ramp C over Nsrc; Mlk Drive?

It is owned by the State Highway Agency.