The Naviglio Grande is a canal in Lombardy, northern Italy, joining the Ticino river near Tornavento to the Porta Ticinese dock, also known as the Darsena, in Milan. It drops 34 m over 49.9 km. It varies in width from 22 m to 50 m from Tornavento to Abbiategrasso, dropping to 15 m between there and Milan. Initially carries 63 m³ per second, 116 outlets take water to irrigate 500 square kilometres leaving the canal 12 m wide and carrying 12 m³ per second as it enters the dock.