The area was settled by Bergen Dutch who established regular water crossings at Douwe's Ferry[6] and Little Ferry.[7] The first bridge crossing of the Hackensack was at Demarest Landing (now Old Bridge Road), built in 1724, which was replaced by that at New Bridge Landing in 1745.[8] The first railroad crossing was completed by the NJRR in 1834, and was soon followed by many others. By the early 1900s conflicts between rail and maritime traffic led to calls for changes in regulations giving priority to trains.[9]
Since 1999, the bridge at Milepoint 16.3 is the most upstream bridge required by the Code of Federal Regulations to open on request,[16] though no requests have made since 1994.[17] The Lower Hackensack remains partially in use for commercial maritime traffic, notably for sewage sludge for treatment at a facility on the bay.[18] (Coal deliveries to the Hudson Generating Station ended upon the facilities closure).[19] Downstream of the power plant site, vehicular moveable bridges (at MP 1.8 and MP 3.1) are required at all times to open on demand.[20] and rail crossings to open on 1-hour notice.[16] New crossings included the replacement the Wittpenn Bridge, a vehicular bridge at MP 3.1 with a new vertical lift bridge[21] and replacement the Portal Bridge, a rail swing bridge at MP 5.0, with a through arch bridge.[22]
^"Ecology Along the Hackensack River"(PDF). Hackensack Water Works. Rutgers University School of Environmental and Biological Sciences Center for Urban Sustainability. August 2012. Archived from the original(PDF) on July 20, 2011. Retrieved November 1, 2012.
^ ab"117.723 Hackensack River", Title 33: Navigation and Navigable Waters Part 117—Drawbridge Operations Regulations, US Government Printing Office, October 20, 2012, archived from the original on December 27, 2014, retrieved October 20, 2012
^Sheenan, Bill (Winter 2006). "The Truth About Traffic On the River". At the Helm: A Word from Captain Bill. Hackensack Riverkeeper. Archived from the original on November 7, 2011. Retrieved November 1, 2012.
^Oradell Avenue, Bridge over Hackensack River(PDF). FY 2020 Study and Development Program (Report). North Jersey Transportation Planning Authority. 2019. Archived from the original(PDF) on October 20, 2020. Bridge was constructed in 1904. The structure had a major reconstruction in 1970 and rehabilitated in 1995 with funding provided by NJDOT-LA. The bridge is structurally deficient and functionally obsolete. Superstructure is in poor condition due to section loss and deformed bottom flange plates as a result of the significant rust between the steel plates at midspan of the girders, holes in the bottom girder flanges, and section loss to the sidewalk cantilevered struts. The structure is classified as fracture critical. Oradell train station adjacent to bridge
"117.723 Hackensack River", Title 33: Navigation and Navigable Waters Part 117—Drawbridge Operations Regulations, US Government Printing Office, October 20, 2012, archived from the original on December 27, 2014, retrieved October 26, 2012