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Benjamin Franklin Bridge

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Title: Benjamin Franklin Bridge  
Author: World Heritage Encyclopedia
Language: English
Subject: Walt Whitman Bridge, Delaware River Port Authority, U.S. Route 30 in Pennsylvania, Philadelphia Register of Historic Places, Camden Waterfront
Collection: 1926 Establishments in the United States, Bridges Completed in 1926, Bridges in Philadelphia, Pennsylvania, Bridges on the Interstate Highway System, Bridges Over the Delaware River, Buildings and Structures in Camden, New Jersey, Center City, Philadelphia, Culture of Philadelphia, Pennsylvania, Delaware River Port Authority, Interstate 76 (East), Paul Philippe Cret Buildings, Philadelphia Register of Historic Places, Railroad Bridges in New Jersey, Railroad Bridges in Pennsylvania, Rapid Transit Bridges, Road Bridges in New Jersey, Road Bridges in Pennsylvania, Road-Rail Bridges in the United States, Suspension Bridges in the United States, Toll Bridges in New Jersey, Toll Bridges in Pennsylvania, Tolled Sections of Interstate Highways, Transportation in Camden, New Jersey, U.S. Route 30
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Benjamin Franklin Bridge

Benjamin Franklin Bridge
(2012)
Official name Benjamin Franklin Bridge
Other name(s) Ben Franklin Bridge
Carries 7 lanes of I-676 / US 30, 2 PATCO railroad tracks, and 2 sidewalks
Crosses Delaware River
Locale (Center City), Philadelphia, Pennsylvania to Camden, New Jersey
Maintained by Delaware River Port Authority of Pennsylvania and New Jersey
ID number 4500010
Design steel suspension bridge
Total length 2,917.86 meters (9,573 feet)
Width 39.01 meters (128 feet)
Longest span 533.4 meters (1,750 feet)
Vertical clearance 5.12 meters (16.8 feet)
Clearance below 41.19 meters (135 feet)
Construction cost $37,103,765[1]
Opened July 1, 1926
Toll Cars $5.00; Trucks over 7,000 lbs $7.50/axle; Buses $3.75/axle (westbound into PA) (E-ZPass)
Daily traffic 100,000
Coordinates
Ben Franklin Bridge at sunrise
Ben Franklin Bridge at night

The Benjamin Franklin Bridge, known informally as the Ben Franklin Bridge and originally named the Delaware River Bridge, is a suspension bridge across the Delaware River connecting Philadelphia, Pennsylvania, and Camden, New Jersey. Owned and operated by the Delaware River Port Authority, it is one of four primary vehicular bridges between Philadelphia and southern New Jersey, along with the Betsy Ross, Walt Whitman, and Tacony-Palmyra Bridges.

The chief engineer of the bridge was Polish-born Ralph Modjeski, the design engineer was Leon Moisseiff, and the supervising architect was Paul Philippe Cret. At its completion on July 1, 1926, its 1,750-foot (533-meter) span was the world's longest for a suspension bridge, a distinction it held until the opening of the Ambassador Bridge in 1929.

Contents

  • History 1
  • Uses 2
    • Rail 2.1
    • Roads 2.2
      • "Zipper" barrier 2.2.1
      • Tolls 2.2.2
    • Proposed Camden-Philadelphia BRT 2.3
    • Walkways 2.4
  • See also 3
  • References 4
  • External links 5

History

Plans for a bridge to augment the ferries across the Delaware River began as early as 1818, when one plan envisioned using Smith/Windmill Island, but only in the 1910s did visions begin to approach reality. The Delaware River Bridge Joint Commission (now the Delaware River Port Authority) was created in 1919. Work on the bridge began in 1922. At the peak of construction, 1300 people worked on the bridge, and 15 died during its construction.[2] The bridge opened to traffic on July 1, 1926, three days ahead of its scheduled opening on the nation’s 150th anniversary.

Uses

Rail

The bridge originally included six vehicular lanes and two streetcar tracks on the main deck, with provision for a rapid transit track in each direction outboard of the deck's stiffening trusses, which rise above the deck rather than lie beneath it. The tracks were built to the nonstandard broad gauge of the Public Service Company of New Jersey's Camden streetcar system; the design called for the streetcars to cross the bridge from Camden to Philadelphia, enter an underground terminal beneath the bridge's west entrance plaza, and return to Camden via the opposite track. Streetcar stations were also built in the bridge's anchorages. None of the streetcar facilities were ever placed in service, as Public Service ran no cars across the bridge from its opening until the company abandoned its Camden streetcar system in 1932; after that, the tracks were removed, and the space was converted to vehicular lanes.

The outer pair of rapid transit tracks went into service in 1936 with the opening of the Bridge Line subway connecting Broadway and City Hall in Camden with 8th and Market Streets in Philadelphia; the Bridge Line, extended to 16th and Locust in 1952, began carrying PATCO trains in 1969. Today, it carries the PATCO Speedline, which descends into tunnels on both sides of the bridge. Both, the Eastbound and Westbound railroad tracks and support structure were reconstructed from June 2014 and finished October 2014.

The westbound approach to the bridge shows the zipper barrier and the overhead gantry lights

Roads

The bridge currently carries highways I-676 and US 30, however only the New Jersey section of the bridge carries I-676, as the section of the bridge approaches on the Pennsylvania side are not up to interstate highway standards, including at-grade traffic crossings. The Pennsylvania section of I-676 (which runs East/West, and not North/South as New Jersey's I-676 does) ends at the ramps to I-95. I-676 is signed across the bridge from both sides, however, to be less confusing to drivers.[3] Before the 1953 New Jersey State Highway renumbering, Route 25, Route 43 and Route 45 ended in the middle of the bridge.

"Zipper" barrier

The seven vehicular lanes are divided by a concrete "zipper" barrier, which can be mechanically moved to configure the lanes for traffic volume or construction. Red and green signals mounted on overhead gantries indicate which lanes are open or closed to traffic in each direction. The lights indicate closures for construction, accidents or breakdown as well as traffic separation. Generally, during the morning rush hour, there are four lanes open westbound and three eastbound, with the situation reversed during the evening rush hour. Before the zipper barrier was installed in 2000-2001, one lane of the bridge was kept closed at peak times to reduce the risk of head-on collisions as there was no physical barrier separating east and westbound traffic.

Tolls

  • A $5.00 one-way toll is charged entering Pennsylvania for passenger vehicles (less than 7,000 lb (3,200 kg) gross vehicle weight).
  • Trucks, commercial vehicles, mobile homes, and recreation vehicles (weighing at least 7,000 lb (3,200 kg). gross vehicle weight), pay $7.50 per axle.[4]
  • Seniors aged 65 and older can use a ticket program to pay $2.50 per trip (not integrated with E-ZPass).

Proposed Camden-Philadelphia BRT

There are proposals for a Camden-Philadelphia BRT, a bus rapid transit system between the two cities extending into Camden and Gloucester which would use the bridge.

Walkways

Pedestrian walkways run along both sides of the bridge, elevated over and separated from the vehicular lanes; of these, only one is open at a time. The DRPA temporarily closed the walkways to the public the day after the 7 July 2005 London bombings, citing security concerns. The DRPA also closes the walkway after snowfall, or if the weather forecast includes a chance of snowfall, and closed it in late August 2011 during Hurricane Irene and in late October 2012 during Hurricane Sandy.

See also

References

Notes

  1. ^ http://www.drpa.org/bridges/bridges_bf.html
  2. ^ Howard, Michael and Howard, Maureen. The Benjamin Franklin Bridge Charleston, South Carolina: Arcadia Publishing, 2009 (Images of America series) ISBN 978-0738562582
  3. ^ http://alpsroads.net/roads/pa/i-676/
  4. ^ "Bridge Fares". Delaware River Port Authority. 

External links

  • Ben Franklin Bridge Photo Portfolio
  • Benjamin Franklin Bridge, Historical overview, by Steve Anderson.
  • Benjamin Franklin Bridge at Structurae
  • Delaware River Port Authority Official Website
  • PATCO Official Website
  • Slideshow
  • Speedliner Newspaper Website
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