|Locale||New Jersey Meadowlands|
|Design||Pratt truss swing bridge|
|Total length||961 ft (293 m)|
|No. of spans||6 deck girder + 1 swing span|
|Clearance below||23 ft (7.0 m)|
|Constructed by||Pennsylvania Steel Company|
The Portal Bridge is a railroad bridge over the Hackensack River in Kearny and Secaucus, New Jersey, United States, just west of Secaucus Junction. The two-track, moveable swing-span between is owned and operated by Amtrak as part of the Northeast Corridor and also used by New Jersey Transit. As of 2015[update], it was considered the busiest train span in the Western Hemisphere, carrying between 150,000 and 200,000 passengers per day.
Originally opened in 1910, the bridge was built by the Pennsylvania Railroad in conjunction with service to the newly constructed Pennsylvania Station in New York City. By the 2000s, the Portal Bridge was considered obsolete and under review for replacement. Train speeds are limited to 60 miles per hour (97 km/h) and the bridge only has a clearance of 23 feet (7.0 m) underneath it, so it must frequently swing open to allow even small commercial boats to pass underneath it.
There are plans to replace the bridge with two fixed spans in the first phase of the Gateway Project. Local funding commitments for the replacement bridge are in place, but work has stalled due to lack of funding. The estimated cost for replacing the bridge was $1.5 billion, Preliminary site-preparation work for one span, Portal Bridge North, began in October 2017 and is expected to be completed in 2019.In June 2018, the State of New Jersey approved $600 million in bonds to finance the project. Despite state funding the federal government is withholding funds for the project.
Design and construction
The Portal Bridge is a 961-foot (293 m) steel structure with masonry abutments. The bridge consists of a 300-foot (91 m) through-truss swing span and six 110-foot-long (34 m) open-deck girder approach spans (three on each side of the center span).(p8) The bridge itself is partially made of wood.
Construction of the bridge was begun in August 1905, and the bridge was placed in service on November 27, 1910,(p8) based on bridge designs from the 1840s. The bridge was designed to last 100 years. Overhead catenary to supply power to electric locomotives was installed in the 1930s.(p8) Some of the bridge machinery was updated in 1931. Minor repairs were made in the 1970s, and major repairs to structural mechanical and electrical equipment were completed as part of Amtrak's Northeast Corridor Improvement Project between 1982 and 1984 by William F. Hegarty, Inc. of East Hanover, New Jersey.
Rail traffic is carried over the swing bridge when it is closed. Rail service is currently at capacity, having grown from 40,000 daily passengers in 2005 to 150,000 to 200,000 daily passengers in 2015 on approximately 450 daily trains for Amtrak and New Jersey Transit.
As of 2011[update], Amtrak operated some 103 scheduled trains in both directions over this segment of the Northeast Corridor between Newark Penn Station and New York Penn Station. Four NJ Transit rail lines (Northeast Corridor Line, North Jersey Coast Line, Morris and Essex Lines, Montclair-Boonton Line) with 393 trains use the bridge each weekday in both directions.
River traffic along the Hackensack River can flow under the swing bridge when it is open. Bridge schedules exempt the Portal Draw from opening weekdays 6 am to 10 am and 4 pm to 8 pm, during peak commuter travel periods over the bridge. At other times, the bridge opens on signal if a vessel gives one hour of notice, also in the hours leading up to peak periods, which can affect train schedules.
When closed to river traffic, the bridge bears upon six wedge blocks. Two blocks are at each end of the bridge while two more sit adjacent to the center of the bridge. After the wedges are withdrawn the center-bearing supports the structure as the bridge is opened and returns it to its closed position once the river traffic has passed through one or both of the navigation channels.
As of 2015[update], the only regularly scheduled commercial traffic on the river is a barge full of sludge traveling from Bergen County Utilities Authority complex in Little Ferry to a sewage treatment plant in Newark. For the last four months of 2014, of the 90 times the bridge was opened, 75 were to provide service to the sludge barge. The bridge has caused numerous delays in train service in order to allow for river service, though Amtrak does not keep specific records of delays.
The Portal Bridge has been called the Achilles' heel of the Northeast Corridor for several reasons. Currently, the bridge limits train speeds to 60 mph (97 km/h) The bridge's lowest beams are just 23 feet (7.0 m) above the surface of the Hackensack River at high tide. As a result, the bridge often has to be opened to allow commercial boats to pass underneath it, which causes more delays for both train and boat traffic. The Portal Bridge fails to close properly one out of seven times it opens, because the rails can fail to lock into place. In extreme cases, rail crews must bang the rails into place with sledgehammers before trains can cross.
Accidents and incidents
The bridge was site of a derailment on November 23, 1996 when the swing bridge failed to close properly. Amtrak's Fast Mail Train No. 12, with twelve passenger and mail coaches pulled by two locomotives on a Washington-to-Boston run with 88 passengers and 20 crew members, derailed as it reached the bridge. It sideswiped an oncoming passenger train, but continued across the bridge, prevented from plunging through the trestles into the river by guide rails that parallel the main tracks. Then its twin locomotives, a baggage car, and three passenger coaches plunged over an embankment.(pp1–5) There were no deaths; thirty-four people were hospitalized. The reason for the derailment was that a rail was 5 inches higher than it was supposed to be, and acted as a ramp. As a result of the derailment, the maximum speed on the bridge was lowered to 60 mph (97 km/h), making the bridge a choke point for the entire Northeast Corridor. The cost of the derailment was estimated at $3.6 million(p8)
On May 13, 2005, the bridge caught on fire. NJ Transit engineers believe that the 13kV overhead electrical wires overheated, sending shards of metal towards the creosote-covered wooden fenders at the base of the bridge. The immediate result of the fire was to block all traffic until the next morning. The cost of the incident was $5 million. On August 4, 2014, the bridge caught on fire, interrupting rail traffic for half an hour.
The bridge requires millions of dollars of yearly maintenance. According to several officials, the bridge is considered a "choke-point" which reduces the potential speed and capacity of the line. These officials include U.S. Sen. Bob Menendez (NJ); Drew Galloway, Amtrak Assistant V.P. of Planning and Development and the chief of Planning and Performance for the Northeast Corridor; New Jersey Transit Executive Director Richard Sarles.
In December 2008, the Federal Railroad Administration approved a $1.34 billion project to replace the Portal Bridge with two new bridges: a three-track bridge to the north, and a two-track bridge to the south. The new bridges were then scheduled to be completed in 2017, at which time the Portal Bridge was to be dismantled. In course of design work the number of tracks on the north bridge has been reduced from three to two.
Design work progressed in 2009 and 2010. In 2009, New Jersey applied for $38.5 million in funding for the replacement from the American Recovery and Reinvestment Act of 2009. On January 28, 2010, the federal funds were released as a TIGER grant as part of a larger package of $112 million for the entire Northeast Corridor. The $38.5 million in federal funds were intended for final design for the new bridge.
The original timeline for the project called for construction of the new bridge to begin in 2010, with the bridge replacement to be complete by 2017. However, partly due to cancellation of the Access to the Region's Core project in 2010, as well as funding issues, this original plan was reduced to a single two-track bridge constructed north of the current bridge with room for a new bridge south of the current bridge left open to follow. In 2014, design work for the new Portal Bridge North had been completed. The proposed Portal Bridge North would be a fixed span rising over 50 feet (15 m) above mean water level, and would allow train speeds of at least 90 mph (140 km/h). The new bridge would also be a part of the Amtrak Gateway Project—itself a partial replacement of the Access to the Region's Core—estimated to cost $13.5 billion.
Progress on the Portal Bridge North has stalled due to funding. In April 2011, Amtrak applied for federal funding of $570 million for construction, with New Jersey expected to commit $150 million. As of 2014[update], however, the project was lacking $940 million in funding. In October 2015, a $16 million TIGER grant was awarded for use to support early construction activities such as realignment of a 138kV transmission monopole, constructing a temporary fiber optic cable pole line, building a finger pier construction access structure, a service access road and a 560-foot retaining wall. The Port Authority of New York and New Jersey planned to contribute $300 million to the project.
As of 2016[update], the expected schedule was for engineering phase to begin in 2017 and revenue service to start in 2024. In May 2017, NJ Transit awarded a contract to carry out this work. In June 2017, the Gateway Development Corporation formally applied for federal funding for the project. The Federal Transit Administration approved the Environmental Impact Statement for the replacement bridge in August 2017. Construction on the first of two replacement bridges began in October 2017. Amtrak has estimated the cost of the bridge's replacement to be $1.5 billion. In June 2018, New Jersey Governor Phil Murphy sold off $600 million in bonds to fund the replacement of the bridge.
- List of crossings of the Hackensack River
- List of bridges, tunnels, and cuts in Hudson County, New Jersey
- List of NJ Transit movable bridges
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- Maag, Christopher (February 21, 2015). "When Bergen County sludge meets rusty Amtrak bridge, both sides lose". The Record (Bergen County). Retrieved April 21, 2015.
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- 33 C.F.R. 117 Subpart B §723
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- "The Portal Bridge Link" - Enhancement project newsletter, January 2007
- NTSB Special Investigation Report regarding 1997 derailment
- Movable Railroad Bridges of New Jersey-photo catalog
- Portal Bridge photos and notes
- FRA ROD