CE2301 IRRIGATION ENGINEERING Lecture Notes for CIVIL - Fifth (5th) semesterCE2301 Lecture Notes
UNIT I INTRODUCTION
Irrigation – Need and mode of irrigation – Merits and demerits of irrigation – Crop and crop
seasons – consumptive use of water – Duty – Factors affecting duty – Irrigation efficiencies –
Planning and Development of irrigation projects.
UNIT II IRRIGATION METHODS
Canal irrigation – Lift irrigation – Tank irrigation – Flooding methods – Merits and demerits –
Sprinkler irrigation – Drip irrigation
UNIT III DIVERSION AND IMPOUNDING STRUCTURES
Weirs – elementary profile of a weir – weirs on pervious foundations - Types of impounding
structures - Percolation ponds – Tanks, Sluices and Weirs – Gravity dams – Earth dams – Arch
dams – Spillways – Factors affecting location and type of dams – Forces on a dam – Hydraulic
design of dams.
UNIT IV CANAL IRRIGATION
Alignment of canals – Classification of canals – Canal drops – Hydraulic design of drops –
Cross drainage works – Hydraulic design of cross drainage works – Canal Head works – Canal regulators – River Training works.
UNIT V IRRIGATION WATER MANAGEMENT
Need for optimisation of water use – Minimising irrigation water losses – On farm development
works - Participatory irrigation management – Water users associations – Changing paradigms
in water management – Performance evaluation.
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