Benjamin Franklin Bridge

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Benjamin Franklin Bridge
Benjamin Franklin Bridge at Sunset.jpg
Benjamin Franklin Bridge at sunset in February 2023
Coordinates 39°57′11″N75°08′02″W / 39.953°N 75.134°W / 39.953; -75.134
Carries7 lanes of I-676.svgUS 30.svg I-676  / US 30, 2 PATCO railroad tracks, and 2 sidewalks
Crosses Delaware River
Locale Philadelphia, Pennsylvania to Camden, New Jersey
Official nameBenjamin Franklin Bridge
Other name(s)Ben Franklin Bridge
Named for Benjamin Franklin
Maintained by Delaware River Port Authority of Pennsylvania and New Jersey
ID number 4500010
Characteristics
Design Steel suspension bridge
Total length9,650 feet (2,940 m)
Width128 feet (39 m)
Height385 feet (117 m)
Longest span1,750 feet (530 m)
Clearance above 135 feet (41 m)
Clearance below 41.19 feet (12.55 m)
History
Construction cost$37,103,765 [1]
OpenedJuly 1, 1926;98 years ago (1926-07-01)
Statistics
Daily traffic 100,000
TollCars $6.00; trucks over 7,000 lbs $9.00/axle; buses $4.50/axle (westbound) (E-ZPass)
Official nameBenjamin Franklin Bridge over the Delaware River
DesignatedDecember 12, 2003 [2]
Location
Benjamin Franklin Bridge

The Benjamin Franklin Bridge, originally named the Delaware River Bridge and known locally as the Ben Franklin 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. It carries Interstate 676/U.S. Route 30, pedestrians/cyclists, and the PATCO Speedline.

Contents

The bridge was dedicated as part of the 1926 Sesquicentennial Exposition, celebrating the 150th anniversary of the signing of the United States Declaration of Independence. From 1926 to 1929, it had the longest single span of any suspension bridge in the world.

History

19th century

The westbound approach to the bridge shows the zipper barrier and the overhead gantry lights in May 2005 BenFranklinBridgeInbound.jpg
The westbound approach to the bridge shows the zipper barrier and the overhead gantry lights in May 2005
Ben Franklin Bridge at sunrise in September 2009 Ben Franklin Bridge at sunrise 2009-09-02 06-08-46 4w.jpg
Ben Franklin Bridge at sunrise in September 2009
Ben Franklin Bridge at night in June 2010 BenjaminFranklinBridgeAtNight.jpg
Ben Franklin Bridge at night in June 2010
Sign for the bridge on Penn Street in Camden in July 2021 2021-07-19 14 09 18 Old sign for the Benjamin Franklin Bridge along northbound North 10th Street at Penn Street in Camden, Camden County, New Jersey.jpg
Sign for the bridge on Penn Street in Camden in July 2021

Plans for a bridge to augment the ferries across the Delaware River began as early as 1818, when one plan envisioned using Smith Island, a narrow island off the Philadelphia shore that was removed in 1893. Local engineer John C. Trautwine proposed a four-span suspension bridge in 1851. In 1868, a committee of Philadelphia and Camden interests proposed a unique design with two parallel low-level drawbridge spans which would allow ships to pass in stages without interrupting traffic across the bridge. A later proposal by John Alexander Low Waddell employed helical approaches to avoid purchasing expensive land for approaches to a high-level suspension bridge. None of these proposals were constructed.

20th century

To find a permanent solution, the Delaware River Bridge Joint Commission, now the Delaware River Port Authority, was created in 1919. [3]

The chief engineer of the bridge was Polish-born Ralph Modjeski, [4] the design engineer was Leon Moisseiff, [5] the supervising architect was Paul Philippe Cret, [5] and the construction engineer was Montgomery B. Case. [6] Work began on January 6, 1922.

At the peak of construction, 1,300 people worked on the bridge, and 15 died during its construction. [7] The bridge was originally painted by a commercial painting company owned by David A. Salkind, of Philadelphia, which also painted the Golden Gate Bridge. [4] The bridge opened to traffic on July 1, 1926, three days ahead of its scheduled opening on the nation's 150th anniversary. At completion, 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.

The name was changed to "Benjamin Franklin Bridge" in 1955, since a second Delaware River suspension bridge connecting Philadelphia and New Jersey, the Walt Whitman Bridge, was under construction.

21st century

The bridge was closed to vehicles on July 1, 2001, to allow pedestrians to celebrate its 75th anniversary. [8]

Uses

Rail

The bridge originally included six vehicle 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 Corporation of New Jersey's Camden streetcar system;[ citation needed ] 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. [9] Streetcar stations were also built in the bridge's anchorages. [10] 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; [10] after that, the tracks were removed, and the space was converted to vehicular lanes. [11]

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. [12] The Bridge Line, extended to 16th and Locust in 1952, began carrying PATCO trains in 1969. [12] 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.[ citation needed ]

Roads

The bridge carries highways I-676 and US 30, but 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. Before the 1953 New Jersey state highway renumbering, New Jersey Route 25 (Route 25), Route 43, and Route 45 ended in the middle of the bridge, and I-76 was signed on the bridge until 1972, when it switched routings with I-676, which until then ran across the Walt Whitman 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. [13] 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

Effective July 2011, one-way tolls to cross the bridge are charged in the westbound (towards Pennsylvania) direction. The charges include:

  • A $6.00 toll is charged to westbound passenger vehicles (7,000 lb (3,200 kg) or less gross vehicle weight). [14]
  • Trucks, commercial vehicles, mobile homes, and recreation vehicles (weighing over 7,000 lb (3,200 kg) gross vehicle weight), pay $9.00 per axle. [14]
  • Seniors aged 65 and older can use a discount program integrated with E-ZPass to pay $3.00 per trip. [15]

On July 17, 2024, the DRPA approved an increase in the toll for passenger vehicles from $5.00 to $6.00, which went into effect on September 1, 2024. [16]

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 that would use the bridge. [17]

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

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References

  1. ↑ "DRPA :: Delaware River Port Authority". drpa.org. Archived from the original on August 17, 2013. Retrieved May 6, 2014.
  2. ↑ "Phila Register no addr" (PDF). phila.gov. Retrieved October 11, 2018.
  3. ↑ Petroski, Henry (2002). "Engineering: Benjamin Franklin Bridge". American Scientist. 90 (5): 406–410. doi:10.1511/2002.33.3325. ISSN   0003-0996. JSTOR   27857716. S2CID   119751258.
  4. 1 2 "Auto Parking to Be Banned in Bridge Area". The Philadelphia Inquirer . June 19, 1926. p. 4.
  5. 1 2 "Ben Franklin Bridge". Delaware River Port Authority. Archived from the original on September 5, 2022. Retrieved October 8, 2022.
  6. ↑ "In University Circles". The Nebraska State Journal. January 22, 1922.
  7. ↑ Howard, Michael and Howard, Maureen. The Benjamin Franklin Bridge Charleston, South Carolina: Arcadia Publishing, 2009 (Images of America series) ISBN   978-0738562582
  8. ↑ "Ben Franklin Bridge Celebration". bridgepros.com. Archived from the original on January 1, 2012.
  9. ↑ DeNardo, Mike (September 15, 2014). "Thousands Cross Ben Franklin Bridge Daily, But How Many Know Its Secret?". CBS Philadelphia . Retrieved October 18, 2022.
  10. 1 2 Stuart, Sarah Clark (August 9, 2018). "Touring the inside of the Ben Franklin Bridge Anchorage". Bicycle Coalition of Greater Philadelphia. Retrieved October 18, 2022.
  11. ↑ Caroulis, John (March 15, 2019). "The art museum that's also a bridge". PhillyVoice. Retrieved October 18, 2022.
  12. 1 2 "DRPA - About Delaware River Port Authority". Delaware River Port Authority . Archived from the original on October 10, 2022. Retrieved October 18, 2022.
  13. ↑ Nussbaum, Paul (March 18, 2015). "Ben Franklin Bridge to get new "zipper"". The Philadelphia Inquirer . OCLC   5794616505 . Retrieved October 17, 2022.
  14. 1 2 "DRPA - Travel Info". Delaware River Port Authority . Retrieved September 5, 2024.{{cite web}}: CS1 maint: url-status (link)
  15. ↑ "DRPA - Travel Info". Delaware River Port Authority . Retrieved September 5, 2024.{{cite web}}: CS1 maint: url-status (link)
  16. ↑ "DRPA Board Votes to Reduce Planned CPI-Based Toll Increase". Delaware River Port Authority . Retrieved September 5, 2024.
  17. ↑ "South Jersey Bus Rapid Transit System". NJ TRANSIT. Archived from the original on October 8, 2022. Retrieved October 8, 2022.
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