US Bridges

Ramp M over Packer Ave;twentieth ST

Good

Philadelphia County, Pennsylvania · Ramp M 37D06 · Structure no. 000000000039183

Built
1957
68 years old, rebuilt 1999
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
693 ft
9 main spans
Daily traffic
5,101
2022 count
Owner
Toll Authority
Local Toll Authority

About this bridge

Ramp M over Packer Ave;twentieth ST is a steel continuous stringer/multi-beam or girder carrying Ramp M over Packer Ave;twentieth ST in Philadelphia County, Pennsylvania. It was built in 1957 and reconstructed in 1999, so it is 68 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 5,101 vehicles a day, roughly 6% of them trucks, projected to reach 6,224 by 2042. The structure is 693 ft (211.2 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRamp M
CrossesPacker Ave;twentieth ST
LocationRamp M 37D06
RouteInterstate 0
Coordinates39.9125, -75.1817
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 2024
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 alignment8: Equal to present desirable criteria
Operating rating35.1 US tons
Inventory rating26.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20
Structure length693 ft (211.2 m)
Longest span108 ft (32.9 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,101 (2022)
Projected traffic6,224 by 2042
Trucks6%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerLocal Toll Authority
Maintained byLocal Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ramp M over Packer Ave;twentieth ST built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 1999.

What condition is Ramp M over Packer Ave;twentieth ST 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 May 2024.

How much traffic does Ramp M over Packer Ave;twentieth ST carry?

About 5,101 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is Ramp M over Packer Ave;twentieth ST?

The structure is 693 ft (211.2 m) long with a longest span of 108 ft (32.9 m) and a deck 33 ft wide.

Who owns Ramp M over Packer Ave;twentieth ST?

It is owned by the Local Toll Authority.