The North Shore Channel near the Bahá'í House of Worship in Wilmette, Illinois.At the south end of the North Shore Channel, the North Branch of the Chicago River flows over a small dam into the confluence. View looking northwest, near River Park in Chicago.
The North Shore Channel is a canal built between 1907 and 1910 to flush the sewage-filled North Branch of the Chicago River down the Chicago Sanitary and Ship Canal.[1] The sewage carrying duty has been largely taken over by the Chicago Deep Tunnel, but there are still occasional discharges due to heavy rains.[2]