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| Notifications & Govt. Orders |
| 1 INTRODUCTION |
| There are seven river systems in Karnataka which with their tributaries,
drain the state. The names of these
river systems and area drained by them are given below. |
|
Sl.no |
River Systems |
Drainage Area | |
|
1000 sq. km |
Percentage |
||
| 1. | Godavari |
4.43 |
2.33 |
|
2. |
111.74 |
58.66 |
|
|
3. |
Cauvery |
34.27 |
17.99 |
|
4. |
6.94 |
3.64 |
|
|
5. |
South Pennar |
3.76 |
1.97 |
|
6. |
Palar |
2.97 |
1.56 |
| 7. | West Flowing Rivers |
26.39 |
13.85 |
|
Total |
190.50 |
100 |
|
KRISHNA RIVER SYSTEM |
|
2.1 The river
Krishna is an Inter-State river in Southern India. It is the second largest river in Peninsular India, rises in
the Western Ghats at an altitude of 4,385 ft. near Mahabaleshwar in Maharashtra
State. It flows across the whole width of the peninsula, from west to east, for
a length of about 870 miles, through Maharashtra, Karnataka and Andhra Pradesh.
The entire catchment area of Krishna basin is 99,980 sq miles. including the
other basin states, and their catchment area are indicated below. |
| SL.NO. |
NAME OF THE
BASIN STATE |
CATCHMENT
AREA IN SQ.MILES |
|
1 |
Maharastra | 26,805 |
|
2 |
Karnataka | 29,441 |
| 3 | Andhra pradesh |
43,734 |
|
Total |
99,980 |
|
| The principal tributaries of Krishna in Karnataka are Ghataprabha, Malaprabha, Bhima and Tungabhadra. All these rivers except the Malaprabha River having their catchment area both in Karnataka and Maharastra. Brief description of these tributaries are given below: |
| Sl. No. |
Name of the
tributary |
Catchment area
in Sq.miles |
Origin , |
Sub-tributaries
|
Name of the
state |
| 1 | Ghataprabha | 3,409 |
Westren ghats, 2,900 feet 176 miles |
Hiranyakeshi, Markandeya | Maharshatra, Karnataka |
| 2 | Malaprabha | 4,459 | Westren Ghats, 2,600 feet 190 miles | Bennihalla,Hirehalla, Tas nadi | Karnataka |
| 3 | Bhima | 27,264 | Westren Ghats, 3,100 feet 535 miles | Combined waters of Mula & Mutha Ghod, Nira,Sina | Maharastra, Karnataka |
| 4 | Tungabhadra | 27,574 | Western ghats at Gangamula, 3,930 feet 330 miles | Combined waters of Tunga & Bhadra, Varada, Hagari(vedavathy) | Karnataka & Andhra Pradesh |
3.0 CAUVERY RIVER SYSTEM |
| The river Cauvery is an Inter-State river in Southern India. It is one of the major rivers of the Peninsular flowing east and running into the Bay of Bengal. |
| The Cauvery rises at Talakaveri on the Brahmagiri Range of Hill in the Western Ghats, presently in the Coorg district of the State of Karnataka, at an elevation of 1.341m (4,400 ft.) above mean sea level. The catchment area of entire Cauvery Basin is 81,155-sq. km. including the other basin states of Cauvery River System and their drainage areas are indicated below.
|
| SL.NO. |
NAME OF THE
BASIN STATE |
CATCHMENT
AREA IN SQ.KMS. |
|
1 |
Karnataka |
34,273 |
|
2 |
Kerala |
2,866 |
|
3 |
Tamil nadu |
43,868 |
|
4 |
Karaikkal region of Pondicherry |
148 |
|
Total |
81,155 |
| The principal tributaries of Cauvery in Karnataka are the Harangi, the Hemavathy, the Lakshmanathirtha, the Kabini, the Shimsha, the Arkavathi and the Suvarnavathy. All these rivers except the Kabini River, Arkavathy River and Suvarnavathy River rise and flow fully in Karnataka. Brief description of these rivers are given below: |
|
Sl. No. |
Name of the
tributary |
Catchment area
in Sq.kms. |
Origin , Altitude & Length |
Sub-tributaries
|
Name of the
state |
|
1 |
Harangi |
717 |
Pushpagiri Hills of Western ghats 1,067 metres 50 km |
|
Karnataka |
|
2 |
Hemavathy |
5,410 |
Ballarayana Durga in western Ghats, 1,219 metres, 245 km |
|
Karnataka |
|
3 |
Kabini |
7,040 |
Westren ghats in Kerala, 2,140 metres, 230 km |
Taraka,Hebballa, Nugu, Gundal |
Karnataka, Kerala & Tamiln Nadu |
|
4 |
Suvarnavathy |
1,787 |
Nasrur ghat Range, Length 88 km. |
|
Karnataka & Tamil Nadu |
|
5 |
Lakshmanathirtha |
|
Westren ghats, 1,950 metres, 131 km. |
Ramathirtha |
Karnataka |
|
6 |
Shimsha |
8,469 |
Tumkur district, 914 meters, 221 km. |
Veeravaishnavi, kanihalla, chickkhole, Hebbahalla, Mullahalla & Kanva |
Karnataka |
|
7 |
Arkavathy |
4351 |
Nandidurga 1,480 meters 161 km |
Kumaudavat-hy, Manihalla & kuttehole, Vrishabhava-thy |
Karnataka & Tamil Nadu |
The river
Godavari rises in the Nasik district of Maharastra about 50 miles from the shore
of Arabian sea, at an elevation of 3500 feet, after flowing for about 910 miles
in a general south-easterly direction, through Maharastra and Andhra Pradesh,
Godavari falls into the Bay of Bengal above Rajamundry. The Godavari has a
drainage area of about 121,000 sq.miles.
|
SL.NO. |
NAME OF THE
BASIN STATE |
CATCHMENT
AREA IN SQ.MILES |
|
1 |
Maharastra |
58,764 |
|
2 |
Madhya pradesh |
25,195 |
|
3 |
Karnataka |
1,701 |
|
4 |
Andhra pradesh |
28,263 |
|
5 |
Orissa |
6,854 |
|
Total |
120,777 |
|
The principal tributaries of Godavari are the Pravara, the Purna, the Manjra, the Pranahita, the Indravathy and the Sabari. The brief description of Manjra River, having its partial catchment area in the State of Karnataka is given below.
|
Sl. No. |
Name of the
tributary |
Catchment area
in Sq.miles. |
Origin , Altitude & Length |
Sub-tributaries
|
Name of the
state |
|
1 |
Manjra |
11,900 |
Balaghat range of hills, 2,700 feet, 450 miles |
Tirina, Karanja, Haldi, Lendi & Mannar |
Maharastra, Karnataka & Andhra Prades |
5.0. WEST FLOWING RIVER SYSTEM
The Western Ghats provides a principal geographical barrier in the path of the Arabian Sea branch of the Southwest monsoon, and is principally responsible for the heavy rainfall over the western coastal belt. The Southwest monsoon season (june to september) is the principal rainy season, over 90 % of annual rainfall is realised in this period.
The rivers in the Western Ghats region generally originate at an elevation ranging from 400 meters to 1,600 meters above the mean sea level, close to the Western Ghats ridge. The rivers generally flow westward and meet the Arabian Sea after a short run varying from 50 kms to 300 kms. the rivers are very steep in the upper reaches and fairly steep in the middle reaches. It is only near the sea that they have relatively flat gradients and some sort of flood plain.
The list of west flowing rivers, their important tributaries and the states through which these are flowing are given in the following table. There are a number of free catchments, between the identified river basins, which have small streams directly draining into the Arabian Sea. These free catchments are close to the sea and are at lower elevation.
|
|
Name of the
tributary |
Catchment area
in Sq.kms. |
Origin , Altitude & Length |
Sub-tributaries
|
Name of the
state |
|
1 |
Mahadayi/ Mandavi |
2,032 |
Western ghats, Belgaum district, 600meters 87 kms. |
Maderi |
Karnataka,Goa |
|
2 |
Kalinadi |
4,188 |
Western ghats, Bidi village, 600 meters, 153 kms. |
Pandhari, Tatti-halla and Nagi |
Karnataka |
|
3 |
Gangavalli (Bedthi) |
3,574 |
Western ghats south Of Dharwad 700 meters, 152 kms. |
|
karnataka |
|
4 |
Aghanashini (Tadri) |
1,330 |
Western ghats Near Sirsi, 500 meters 84 kms. |
|
Karnataka |
|
5 |
Sharavathi |
3,592 |
Westren ghats Humacha in Shimoga district, 700 meters, 122 kms. |
|
Karnataka |
|
6 |
Chakra Nadi |
336 |
East of Kodachadri in Shimoga district, 600 meters, 52 kms. |
Kollur |
Karnataka |
|
7 |
Kavaledur-ga in the Shimoga district, 600 meters, 66 kms |
|
Karnataka |
||
|
8 |
Bellarayan-a Durga in the Dakshina Kannada, 1,000 meters, 103 kms |
Gundiahole,
Kumaradara and Shisiahole. |
Karnataka |
||
|
9 |
Brahamagiri Ghat Reserve Forest in Coorg , 900 meters, 110 kms |
|
Karnataka & Kerala |
a. Independent catchment between Sharavathi and Chakra river.
There are numbers of independent streams joining the arabian seas. Kollur River, Ghantihole, Venkatapur, Baindurhole, Shankargundi, Kumbarhole and Yedamavinahole are the important streams in this reach. The entire catchment of the streams coming in this reach lies in the state of Karnataka.
b. Independent catchment between Varahi and Netravathi river.
The independent catchment comprises of streams namely Swarna, Seethanadhi, Mulki river, Pavanje, Nadisalu, Gurpur,Yennehole and Madisalhole. The entire catchment of the streams coming in this reach lies in the state of Karnataka.
c.
Independent catchment between
Netravathy and Chandragiri (Payaswani)
The main streams draining are Chandragiri ( payaswani) and Shiriya river. The Chandragiri rises west of Mercara in Coorg District of Karnataka State at an elevation of about 600 Mts. Pyayaswani River originates from Patti Ghats reserve forest in Coorg District of Karnataka at an elevation of 1350 Mts. The two river joins together at Machipana about 15 kms upstream of their out fall point into Arabian sea near Kasaragud. It drains catchment area of 1406 Sq kms out of which 836 Sqkms lies in Karnataka state and the balance portion in Kerala state.
|
Sl. No. |
Name of the
tributary |
Catchment area
in Sq.miles. |
Origin ,
|
Sub-tributaries
|
Name of the
state |
|
1 |
Uttara Pinakini (North Pennar River ) |
2,759 |
Nandi hills of Kolar |
Jayamangali, Kumadavath-y,
Chitravathy and papagni |
Karnataka, Andhra Pradesh |
7.0. SOUTH PENNAR RIVER SYSTEM
|
Sl. No. |
Name of the
tributary |
Catchment area
in Sq.miles. |
Origin ,
|
Sub-tributaries
|
Name of the
state |
|
1 |
South Pennar |
1,424 |
Nandi hills of Kolar |
|
Karnataka, Tamil Nadu |
|
Sl. No. |
Name of the
tributary |
Catchment area
in Sq.kms |
Origin ,
Altitude, length |
Sub-tributaries
|
Name of the
state |
|
1 |
Palar |
17,871 |
Talagavara village in Kolar, 900 meters , 348 kms. |
|
Karnataka, Andhra Pradesh Tamil Nadu |
