The Cape Cod Canal is an artificial waterway in the U.S. state of Massachusetts connecting Cape Cod Bay in the north to Buzzards Bay in the south, and is part of the Atlantic Intracoastal Waterway. The approximately canal traverses the neck of land joining Cape Cod to the state's mainland. It mostly follows tidal rivers widened to and deepened to at mean low water, shaving off the journey around the Cape for its approximately 14,000 annual users. Most of the canal is located in the town of Bourne, but its northeastern terminus is in Sandwich. Scusset Beach State Reservation lies near the canal's north entrance, and the Massachusetts Maritime Academy is near its south. A swift-running current changes direction every six hours and can reach during the receding ebb tide. The waterway is maintained by the United States Army Corps of Engineers and has no toll fees. It is spanned by the Cape Cod Canal Railroad Bridge, the Bourne Bridge, and the Sagamore Bridge. Traffic lights at either end govern the approach of vessels over . The canal is occasionally used by whales and dolphins, including endangered North Atlantic right whales; these can cause closure of the canal. History Construction of a canal was first considered by Myles Standish of the Plymouth Colony in 1623, and the Pilgrims scouted the low-lying stretch of land between the Manomet and Scusset rivers for potential routes. William Bradford established the Aptucxet Trading Post in 1627 at the portage between the rivers. Trade prospered with the American Indians of Narragansett Bay and the Dutch of New Netherland, and this was a major factor enabling the Pilgrims to pay off their indebtedness. In 1697, the General Court of Massachusetts considered the first formal proposal to build the canal but took no action. In 1717, a canal was created in Orleans, Massachusetts called Jeremiah's Gutter which spanned a narrower portion of the Cape some distance to the east, but it only remained active until the late 1800s. More energetic planning with surveys took place repeatedly in 1776 (by George Washington), 1791, 1803, 1818, 1824–1830, and 1860. None of these efforts came to fruition. The first attempts at actually building a canal did not take place until the late 19th century; earlier planners either ran out of money or were overwhelmed by the project's size. The engineers finally decided which route to take through the hillsides by