A fishway or fish ladder is a waterway constructed on or around a natural or artificial obstruction to provide a passageway for fish and other aquatic species. The construction of fishway allows a seamless migration for the aquatic species despite ...
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Determination of Metacentric Height of a Floating Body
A point about which a floating body tries to oscillate is called the metacenter of that body. The distance between metacenter (M) and the center of gravity (G) of the floating body is known as metacentric height (GM). The laboratory ...
Why do Modern Dams Fail?
Dam failures rarely occur, but when they do, it wreaks havoc into the environment and human life. There are several reasons that contribute to dam failure like overtopping, failure of foundation, erosion, improper maintenance, etc. Modern dams make use of ...
7 Different Types of Spillways
A spillway is a hydraulic structure built at a dam site for diverting the surplus water from a reservoir after it has been filled to its maximum capacity. Spillways are classified into different types on the basis of the arrangement ...
Classification of Canals based on Different Factors
A canal is an artificial channel constructed to convey water from rivers, reservoirs, etc. for several purposes like power generation, navigation, irrigation, etc. Canals are classified into different types based on factors such as nature of supply source, functions, type ...
Lacey’s Silt Theory of Canals
Lacey investigated the stability conditions of different alluvial channels and came up with Lacey’s silt theory which explains about the different regime conditions of a channel such as true regime, initial regime, and final regime and the design procedure of ...
Roughening Devices and their Types
Roughening devices are installed at the downstream end of the channel and their main function is to dissipate energy from water flow coming on to the downstream bed. Different types of roughening devices generally used are friction blocks, biff walls, ...
Cistern and its Types
A cistern is an element of canal fall and it is provided on the downstream portion to dissipate the surplus energy of water leaving the crest. The purpose of a cistern and different types of cisterns are briefly explained in ...