Pazhassi Irrigation Project.Yes these are canals

irrigation project in Northern Kerala, Partially Commissioned in 1979, is intended to raise the water level of the dam (barrage) at Kuyilur across the Valapattanam River in Kannur district. The Pazhassi project is spread over a total length of 413.123 km in the Taliparamba, Kannur and Thalassery Taluks of Kannur district with 46.26 km of main canal, 78.824 km of trenches, 142.039 km of distribution and 150 km of reservoirs. The project aims to irrigate two to three crops in the 11525 hectares of the district. Kerala Water Authority relies on Pazhassi Project as a soure of waterin Kannur district. In addition, the Japan Drinking Water Project and the Kannur International Airport are using water from Pazhassi Reservoir. In addition, the Kerala State Electricity Board (KSEB) has envisaged utilization of the water in this project for a small Hydro Project and the work is in the initial stage.