1. The Hamirsar catchement system

The Hamirsar catchement system

A catchement (also called “drainage basin” ) is an area of land where surface water from rain converges to a single point, in this case : Hamirsar lake.
The annual average rainfall in Bhuj is around 330 mm per year with a variance of 65% which is a big variation. It means that there is a lot of rain some years and no or little rain other years. Storing the water is then essential!

3.original-catchment-map.jpg

Source : ACT

The original area of collection of water (catchement) was too small to fill Hamirsar lake. Water had to be hanessed from 5 other surrounding catchements throug ingeniously located channels and tunnels.

The concentration of rain water was so efficient that it could fill the 4 important lakes of Bhuj which are interconnected  :
1. Dhobi lake
2. Hamirsar lake
3. Chattedi lake
4. Pragsar lake (after the overflow of the 3 first ones)

 

4.hamirsar_catchement_map-online_0.jpg
Source : ACT

 

I. The Dhunaraja, Tapka and Lakki Catchments were connected by the Haripar Canal
II. Mirzapar River was connected by the Mochirai Canal
III. Khari River was connected by the Bhuj Irrigation Canal

When the water  dried in lakes 1,2,3 and 4 , the gates of the feeder dams a,b,c,d and were open to refill them.

a. Dhunaraja dam
b. Hamidrai lake
c. Mundra Road lake
d. Mochrai tank
e. Bhuj Irrigation Dam

Do you know that in and around 43 lakes are playing a key role in the storage of water, regulation of storm water, etc. 
 

Discover what is happening "undergound" and how  a huge amount of water is stored just below our feet !  >>> 

 

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