was built directly over the canal, which still flows underneath The idea of a canal between the Raritan and Delaware Rivers originated with
William Penn, the founder of Pennsylvania, who suggested it in the 1690s. Such a canal would shorten the journey from
Philadelphia to
New York City by 100 miles, and relieve the need for boats to venture into the
Atlantic Ocean. Despite Randel's report, and the clear advantage of having such a canal, the opposition to the project managed to keep anything from happening until 1830. On February 4, 1830, the New Jersey legislature passed legislation that created the charter for the D&R Canal. The charter for the
Camden and Amboy Rail Road and Transportation Company was passed the same day. The D&R charter allocated $1.5 million of stock for construction which was required to be completed within eight years. The canal was to be considered a public highway although the corporation would be allowed to collect tolls and transit duties for passengers and cargo transported along the canal. The canal was almost not dug due to the lack of
subscriptions. When that occurred,
Robert F. Stockton, the grandson of
Richard Stockton, a signer of the
Declaration of Independence, pledged his and his family's personal fortune to continue the work. The canal system was dug mostly by hand tools, mostly by Irish immigrants. Work began in 1830 and was completed in 1834, at an estimated cost of $2,830,000, equal to $ today. When the canal first opened, before the
steam engine was developed, teams of mules were used to tow canal boats through it. The canal's greatest usage occurred during the 1860s and 1870s when it was used primarily to transport coal from Pennsylvania to New York City during the
American Industrial Revolution. On May 18, 1872, the D&R Canal Company was merged with several parallel railroads into the
United New Jersey Railroad and Canal Company and leased by the
Pennsylvania Railroad.
20th century D&R Canal's importance waned as
railroads were used to perform, more rapidly, the same function as canals, but it remained in operation until 1932. Years later, the section between Trenton and Bordentown was filled for various road and rail projects, leaving the feeder waters to solely supply the main canal from
Trenton, New Jersey north to New Brunswick. Two other sections of the canal were piped underground: one in Trenton when the
Trenton Freeway was constructed in 1952, and the other in
New Brunswick when the Elmer Boyd Parkway Extension (
Route 18) was constructed in 1984. ==Route==