Canal outlets are of the following three types: 1. Non-Modular Outlets 2. Semi-Modular Outlets 3. Modular Outlets. Type # 1. Non-Modular Outlets: In non-modular canal outlets, discharge capacity depends on the difference of water levels in the distributary and the watercourse. The discharge through non- modular outlets fluctuates over a wide range with variations in the water levels of either [...]
This article throws light upon the four main components of a spillway. The components are: 1. Control Structure 2. Conveyance Structure 3. Terminal Structure 4. Entrance and Exit Channels. Component # 1. Control Structure: The control structure of a spillway regulates and controls the outflows from the reservoir. It is usually located at the upstream end of the spillway, and [...]
After reading this article you will learn about the drainage of irrigation lands. Irrigation and drainage are complementary to each other. In humid area, drainage attains much greater importance than in arid regions. Irrigated lands require adequate drainage to remain capable of producing crops. Adequate drainage of fertile lands require lowering of shallow water table and this forms the first [...]