Physiographic Characteristics of Bhagirathi and Alaknanda
rivers and their Tributaries
Sl.
River
Total
Elevation Range
Gradient Confluence
No.
Length*
(m)
Location
Highest
Confluence
Point
Point
Bhagirathi River
1.
Bhagirathi
217000 3200
480
1.25% Confluences with
Alaknanda at
Devprayag
1(a). Bhagirathi-
83500 3200
1120
2.49%
Asiganga
1(b) Bhagirathi-
91000 1120
610
0.56%
.
Bhilangana
1(c). Bhagirathi-
42500 610
480
0.31%
Devprayag
2.
Asi Ganga
20500 2440
1120
6.44%
Confluences at
Ganganani
Uttarkashi
3.
Bhilangana
109000 3000
670
2.14%
Confluences are
Tehri
4.
Bal Ganga
37000 1730
814
2.48%
Confluences
Bhilangana at
Ghansali
Alaknanda River
5
Alaknanda
224000 4016
480
1.58%
Joins Bhagirathi at
Devprayag
5a
Alaknanda -
47000 4016
1446 5.47%
Confluences at
Dhauli
Ganga
Vishnuprayag
5b
Alaknanda-
60000 1446
795
1.09%
Confluences at
Pindar
Karanprayag
5c
Alaknanda - 109000
795
480
0.29%
Devprayag
6
Dhauli
Ganga
50000
2880
1446 2.87%
Confluences at
Vishnuprayag
7
Rishi Ganga
38500 4000
1900
5.45%
Confluences Dhauli
Ganga at Tapovan
8
Birahi Ganga 29500
2160
994 3.95%
Confluences at
Birahi village
9
Nandakini
44500 2200
880 2.97%
Confluences
Alaknanda at
Nandprayag
10
Pindar
1 14000 2200
775 1.25%
Confluences at
Karnprayag
11
Mandakini
81000 3562
640 3.61%
Confluences at
Rudraprayag
*Upper reaches of river have not been
accounted
(Source : AHEC, IIT, Roorkee)
