|
| Total Catchment Area within Rajasthan |
| 4.58 Mha |
| Total Culturable Area |
| 2.18 Mha |
| Total Culturable Command
Area |
| 655,932 ha |
| - Existing Projects 472,797 ha |
| - Ongoing Projects 88,731 ha |
| - Proposed Projects 94,404 ha |
| Average Irrigated Area
|
| 0.83 Mha |
| Total Mean Annual Surface
Water Potential |
| 3,451 Mm3/year |
| - Utilised 1,875 Mm3/year |
| Total Ground water Annual
Recharge |
| 2,700 Mm3 |
| - Utilised 1,903 Mm3/year |
| Water Transfers (1995
data) |
| - From Sabarmati Basin 3 Mm3 |
| - From Banganga Basin 38 Mm3 |
| - To Luni Basin 37 Mm3 |
| Tributaries |
| Berach, Kothari, Khari, Dai, Mashi, Sohadara,
Morel, Kalisil, and Dheel. |
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1. Introduction
Banas River Basin is located in east-central Rajasthan, between
latitudes 24o15' and 27o20'N and longitudes 73o25' and 77o00'E.
Aligned NE-SW, it is bounded by the Luni Basin in the west, the
Shekhawati, Banganga and Gambhir Basins in the north, the Chambal
Basin in the east, and the Mahi and Sabarmati Basins in the south.
The Basin extends over parts of Jaipur, Dausa, Ajmer, Tonk, Bundi,
Sawai Madhopur, Udaipur, Rajsamand, Pali, Bhilwara and Chittorgarh
Districts.
The total catchment area of the Basin is 45,833 km2 according to
the 1:250,000 scale topographical maps published by the Survey of
India.
Orographically, the western part of the Basin is marked by hilly
terrain belonging to the Aravali chain. East of the hills lies an
alluvial plain with a gentle eastward slope. Ground elevations in
the western hilly part range approximately from +850 to +1123 m,
while the alluvial plain elevations range approximately from +580
to +750 m.
2. Drainage
River Banas originates in the Khamnor hills of the Aravali range
(about 5 km from Kumbhalgarh) and flows along its entire length
through Rajasthan. Banas is a major tributary of the River Chambal,
the two rivers meeting near village Rameshwar in Khandar Block in
Sawai Madhopur District. The total length of the river is about
512 km.
The main tributaries of Banas are Berach and Menali on the right,
and Kothari, Khari, Dai, Dheel, Sohadara, Morel and Kalisil on the
left.
3. Rainfall
The mean annual rainfall over Banas Basin is around 541 mm of which
about 95% falls during the four Monsoon months (June-September)
4. Existing Surface Water Projects
There are 7 Major (Rajsamand, Meja, Chhaparwara, Kalakh Sagar, Tordi
Sagar, Morel Bund and Galwa Bund), 33 Medium and 1,219 Minor irrigation
projects in Banas River Basin, as well as several small irrigation
systems (covering less than 20 ha) constructed and operated by Panchayat
Samities (PS).
5. Ongoing Surface Water Projects
23 irrigation projects including two Major (Gosunda and Bisalpur
Irrigation Project), with a total live storage capacity of 1,061
Mm3, are under construction in Banas River Basin. An additional
area of 89 kha is planned to be irrigated on completion of these
projects.
6. Proposed Surface Water Projects
56 irrigation projects, including 2 Major (Isarda and Kala Khera),
with a total live storage capacity of 564 Mm3, have been proposed
by the ID in this Basin. An additional area of 94 kha will be irrigated
on completion of these projects.
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