Table of Contents
- It is a special type of irrigation practiced in some parts of Maharashtra.
- It is essentially a minor irrigation scheme consisting of diversion weir walls across small streams.
- Small canals taking-off from the U/S of the weirs and commanding small tracks of lands.
- The bandhara irrigation scheme is very economical and by constructing a number of such structures in series across minor streams.
- The irrigation facilities can be economically extended to large areas.
- The irrigating capacity of each Bandhara may vary from few hectares.
- To hundreds of hectares depending upon the availability of water.
- Bandhara is a name given to small weir.
- where a large irrigable area is not available at a stretch.
- The small amount of water of such streams is use for irrigation of the small isolated tracks of irrigable land lying in the vicinity of the streams.
LOCATION OF BANDHARA
- The stream should preferably be running throughout the year (perennial).
- A good foundation for the weir should be available.
- The section of the stream should be straight, narrow, and well defined.
- H.F.L. at the site should be as low as possible.
- The canal taking off from Bandhara should not cross any important natural drainage in that area.
- The area under the command of the canal should be adequate.
- The land available for irrigation should be adequate and furtile.
WORKING OF BANDHARAS
- A weir and an off taking channel, both form one unit of the Bandhara irrigation scheme.
- Several Bhandara units may be construct in series one after the other.
- The surplus water spilling over one bandhara is utilize by the subsequent unit of Bandhara.
- A head regulator is construct to control the entry of water into the off taking channel.
- The irrigable area under Bandhara is know (Thal).
- A thal may be divid into phads or small blocks.
- One phad may contain several fields of a number of cultivators.
- A particular phad will be having only one type of crop in a season.
- Each phad having one type of crop only.