Functions of Brahmaputra & Barak Basin Organization, Shillong

1

NORTH EAST INVESTIGATION CIRCLE, CWC, SHILLONG

Tipaimukh Investigation Circle was opened by CWC in Shillong in the year 1977 for carrying out of Survey & Investigation of Tipaimukh High Dam Project in Manipur / Mizoram. On completion of the works of Tipaimukh High Dam project, this Circle was renamed as North Eastern Investigation Circle in 1983 and it has been taking up the work of Survey & Investigation for various types of Water Resources Development Project in N.E. Region. Of late, S&I works outside of North East have also been taken up for one project of DVC (Balpahari). The field investigations are being carried out by three Divisions, namely (1) North Eastern Investigation Division-I, CWC, Silchar, (2) North Eastern Investigation Division-II, CWC, Aizawl and (3) North Eastern Investigation Division-III, CWC, Itangar. The designs / drawings required for preparation of DPRs are being carried out by the specialized Dte., of Central Water Commission and Central Electricity Authority, New Delhi.

Processing of proposal for central assistance pertaining to the state of Meghalaya & Mizoram on SMI Schemes, RRR of water bodies etc.

2

HYDROLOGICAL OBSERVATION CIRCLE, CWC, GUWAHATI

HYDROLOGICAL OBSERVATIONS:

There is a network of 145 Hydrological Observation Stations for collection of Hydro-meteorological data on the rivers covering Brahmaputra Basin and a part of Barak Basin. The Hydro-meteorological data collected by HOC, CWC is being utilized by various organizations for planning of Water Resources Development Projects or other Projects like bridge across rivers etc. Various user agencies like Govt. Departments/PSU/Students etc collect HO data from CWC for numerous development works such as Planning, Design & Construction of Hydro-electric Project, Bridges, expansion of projects, Geotechnical studies of rivers etc. Some of the agencies are Brahmaputra Board, North-East Frontier Railway, Hindustan Fertilizer Corporation Ltd., National Institute of Hydrology, NEEPCO Ltd., NHPC, North Easter Space Applications Centre (NESAC), NTPC, ONGC, IIT Guwahati, NIT Silchar, Universities and Engineering Colleges and State Governments departments of NE States.

FLOOD FORECASTING:

Flood Forecast (Level Forecast) is issued by division offices at 34 stations. Gauge data is collected round the clock on hourly basis during Flood Season (1st May-31st October). This data is communicated to forecast formulation units i.e. Division/Sub-Division offices mainly through a network of wireless sets and phone/fax etc.

The Flood Forecasts are formulated and disseminated to the local administration, concerned State Authorities, CWC (HQ), Defense and other user agencies including media through email, FAX. Besides, the flood bulletins are also uploaded on websites india-water.gov.in/ffs by the head quarter. During high flood situation, flood alerts also issued through SMS.

Forecast is formulated and Daily Flood Bulletins are issued when Water Level is about to touch/cross warning level at the forecasting site. Forecast is issued to user agencies viz. Civil Authorities, other concerned Government departments, Mass Media like Doordarshan, AIR and News Papers etc. Daily Flood Bulletins are issued once/twice to user agencies through Special Messenger/Phone/Fax/E-mail etc.

Processing of proposal for central assistance pertaining to the state of Arunachal Pradesh on SMI Schemes, RRR of water bodies etc.

3

MEGHNA CIRCLE, CWC, SILCHAR

The main functions of Meghna Circle and field formations attached with it are observation, validation and compilation of Hydro-meteorological data such Gauge, Discharge, Silt, Water Quality, Temperature and Rainfall in the Indian Catchment of Meghna River System (the Barak and its tributaries and also other north and west flowing rivers of Tripura and west flowing rivers of Meghalaya-either meeting the Barak River in the Indian Territory or flowing directly into Bangladesh for joining ultimately in the Meghna). The Hydro-meteorological data being collected by Meghna Circle may prove useful in assessment of water availability in these rivers for comprehensive planning of water resources projects on Domestic Water Supply, Irrigation, Hydro-power, Flood Control and also for navigation and Industrial needs. In future, the above data may be an essential input in devising water sharing mechanism between India and Bangladesh on the Barak and other rivers flowing from India into Bangladesh.

Processing of proposal for central assistance pertaining to the state of Manipur & Tripura on MI Schemes, RRR of water bodies etc.

4

MONITORING & APPRAISAL DIRECTORATE, CWC, GUWAHATI

1. Monitoring of ongoing Major/Medium Irrigation Projects in the North-Eastern States of Assam, Meghalaya, Manipur, Tripura, Arunachal Pradesh, Mizoram and Nagaland under AIBP.

The Accelerated Irrigation Benefit Programme (AIBP) was introduced by Govt. of India in consultation with State Govt. in 1996-97 under which Major/Medium Irrigation Projects, which were in advanced stages of completion, were provided with project specific loans with State committing their commensurate shares for early completion of the projects. The monitoring work of Major/Medium Irrigation projects of North-Eastern States which are covered under AIBP has been allocated to this Directorate w.e.f. 1996-97. Presently, 10 projects of these states are under purview of AIBP. With the introduction of new scheme i.e. Pradhan Mantri Krishi Sinchayee Yojana (PMKSY), now all the programmes i.e. Accelerated Irrigation Benefit Programme (AIBP) all Major & Medium Project, National Projects and ERM Projects, Minor Irrigation, Repair and Renovation & Restoration (RRR) of Water Bodies, Command Area Development & Water Management (CADWM) Programme and Ground Water Programme will be implemented under PMKSY.

2. Monitoring of Surface Minor Irrigation Scheme under AIBP/CADWM.

From 1999-2000, Surface Minor Irrigation Schemes of North-Eastern States have been included under AIBP. Monitoring of these Schemes in Assam and Nagaland has also been assigned to this Directorate during 2003-04.

3. Monitoring of Command Area Development Water Management (CADWM) Projects from year 2000-01 in the North-Eastern States.

Command Area Development Programme was launched in N.E Region along with rest of country in 1974-75, which was being executed by the respective Sates under direct control/guidelines of MoWR.

In case of CADWM Projects, as per latest guidelines the DPR at the time of inclusion need not be examined by the CWC field units as well as CWC (Hq). The state government directly submits the DPR after clearance from the state TAC to MoWR, RD&GR. For seeking funding under the CADWM Programme, proposals for new projects would be submitted to the fields unit and the field units would examine the proposals and forward to MoWR, RD&GR.

4. Vetting of proposals for Central Assistance under AIBP.

The Major and Medium Projects covered under AIBP Scheme get the Central Assistance in two installments each year. The proposals for release of CA are examined and recommended by this office for further approval by CWC and MoWR.

5. Appraisal of DPR for Medium Irrigation Projects. 

The Detail Project Reports of Medium Irrigation Projects are appraised by this office for their techno-economic clearance by TAC of MoWR. However, DPRs of Major Projects have to be forwarded to CWC(HQ) from field offices after preliminary examination.

6. Appraisal of DPR for Flood Management Schemes.

• The DPR of Flood Management Schemes of Assam (Southern Flank), Manipur, Tripura and Brahmaputra Board Projects.
• DPR of Flood Management Schemes in Border Areas in all states of North Eastern Region (except Sikkim). 

7. Appraisal of Revised Cost Estimates of Medium Irrigation Projects. 

The revised cost estimates of Medium Irrigation Projects of NE Region submitted by the State Govt. are technically examined as per the guidelines of CWC. TAC Note is prepared and submitted to Project Monitoring Organization, CWC, New Delhi.

8. Proposal of state govt. for funding of Water Bodies under the Scheme of RRR of Water Bodies in the States of Assam and Nagaland.