 The area that now forms Amsterdam-Noord has been intersected by the Noordhollandsch Kanaal since its competition in 1824, which on the south side via the Willemssluizen is connected to the IJ.The canal flows under the A10 motorway coming from Den Helder, and then goes through the Noorderpark (east of Buiksloot and west of Buikslotermeer) and Overhoeks.It was not until the 19th century that this area was urbanised; before construction began, the filling up of marshes with port sludge was necessary.