CANALS
Artificial channels constructed on the ground to carry water to fields
either from a river or from a tank or reservoir.
Canal Classification
1. Based on nature of source of supply
2. Based on financial output
3. Based on function of canal
4. Based on boundary surface of canal
5. Based on discharge
6. Based on canal alignment
1
, Based on nature of source of supply
• Permanent canal – fed by permanent source of supply
› canal made of regular graded channel.
› permanent masonry works for regulation & distribution of
supplies.
› also known as perennial canal.
• Inundation canal – draws supplies during high stage in river.
› no head works but canal regulators provided.
› head of canal has to be changed to suit changing river course
2
,Based on financial output
• Productive canal - yield a net revenue to nation after full
development of irrigation in the area.
• Protective canal – a sort of relief work constructed with idea
of protecting a particular area from famine.
3
, Based on function of canal
• Irrigation canal – carries water to irrigation fields
• Carrier canal – besides irrigation carries water for another
canal.
• Feeder canal – for feeding 2 or more canals.
• Navigation canal – for navigation
• Power canal – for power generation
4
Artificial channels constructed on the ground to carry water to fields
either from a river or from a tank or reservoir.
Canal Classification
1. Based on nature of source of supply
2. Based on financial output
3. Based on function of canal
4. Based on boundary surface of canal
5. Based on discharge
6. Based on canal alignment
1
, Based on nature of source of supply
• Permanent canal – fed by permanent source of supply
› canal made of regular graded channel.
› permanent masonry works for regulation & distribution of
supplies.
› also known as perennial canal.
• Inundation canal – draws supplies during high stage in river.
› no head works but canal regulators provided.
› head of canal has to be changed to suit changing river course
2
,Based on financial output
• Productive canal - yield a net revenue to nation after full
development of irrigation in the area.
• Protective canal – a sort of relief work constructed with idea
of protecting a particular area from famine.
3
, Based on function of canal
• Irrigation canal – carries water to irrigation fields
• Carrier canal – besides irrigation carries water for another
canal.
• Feeder canal – for feeding 2 or more canals.
• Navigation canal – for navigation
• Power canal – for power generation
4
