Question : TASK FORCE ON FLOOD MANAGEMENT

(a) whether the Task Force on Flood Management has recommended construction of reservoirs in Assam and catchment areas of Brahmaputra to control the perennial floods in Assam and other parts of North East; and

(b) if so, the details thereof and the estimated cost involved therein?

THE MINISTER OF STATE IN THE MINISTRY OF WATER RESOURCES (SHRI JAI PRAKASH NARAYAN YADAV)

(a) The Task Force has recommended that the Long-term solution to the flood problems of Assam, North Bihar & Eastern Uttar Pradesh from the annual floods lies in creating storage reservoirs of adequate capacity with the requisite allocated flood cushion on the Brahmaputra, its tributaries, the Barak, and the tributaries of Ganga whether in India or in Nepal. As regards the catchment area the Task Force has recommended that the catchment management / treatment plans undertaken/ proposed to be undertaken by different development authorities and the states should be integrated and incorporated in the watershed management plans.

(b) The details of the schemes/projects identified as long term measures on river Brahmaputra and its tributaries are given in Annex. The costs involved in the above suggested measures have not been estimated by the Task Force.


ANNEX

Details of the schemes/projects identified as long term measures on river Brahmaputra and its tributaries

The major tributaries of the Brahmaputra, which contribute significantly to its flow, are Siang (37.45 per cent), Subansiri (10.66 per cent), Lohit (9.50 per cent), Dibang (7.65 per cent) and Kameng (5.84 per cent). As per the Master Plan prepared by the Brahmaputra Board, the permanent solution to the perpetual problems of Assam from the annual floods in Brahmaputra lies in creating storage reservoirs of adequate capacity with the requisite allocated flood storage capacity on the tributaries of Brahmaputra. Major tributaries of Brahmaputra and the storage schemes on them were identified as under:

1. Siang River: Siang basin projects in Arunachal Pradesh with proposed reservoirs of 20,000 million cubic metre gross capacity (approx). This includes three projects namely Siang Upper, Siang Middle and Siang Lower which came up as alternative to single dam project.
2. Subansiri River: Subansiri basin Projects in Arunachal Pradesh with proposed reservoirs of 4800 million cubic metre gross capacity (approx). This includes three projects namely Subansiri Upper, Subansiri Middle and Subansiri Lower which came up as alternative to single dam project.
3. Dibang River: Dibang Dam Project in Arunachal Pradesh with a proposed reservoir of 3600 million cubic metre gross capacity (approx).
4. Lohit River: Lohit Dam project in Arunachal Pradesh with a proposed reservoir of 5100 million cubic metre gross capacity (approx).

 Tributary Main River Gross Storage (mcm) Noa-Dehing Brahmaputra 57 Jiadhal Brahmaputra 1344 Dikrong Brahmaputra - Kameng Jiabharali 6500* Dhansiri Brahmaputra 1500 * (S) Pagladiya Brahmaputra 313 Manas Brahmaputra 920 * Aie Brahmaputra - Killing Brahmaputra 56 Kulsi Brahmaputra 795 Dikhu Brahmaputra 1000* Dhansiri Brahmaputra (N) Janji Brahmaputra 300* Kopilli - Brahmaputra 1620* Kollong