INLAND WATERWAYS AUTHORITY OF INDIA, A-13, SECTOR-1, NOIDA DIST-GAUTAM BUDHA NAGAR, UTTAR PRADESH, PIN- 201 301(UP) “ FINAL FEASIBILITY REPORT ON HYDROGRAPHIC SURVEY DEHING RIVER (NW-30) (109.136 km) FROM “CONFLUENCE OF DEHING AND BRAHMAPUTRA RIVER NEAR VILLAGE LACHAN TO RAIL BRIDGE AT MERBIL MAJULI” Survey Period from 08.11.2015 to 30.11.2015 ` FINAL REPORT ON HYDROGRAPHICAL SURVEY OF DEHING RIVER, ASSAM REPORT SUBMISSION DATE-05.11.2018 SUBMITTED BY: PRECISION SURVEY CONSULTANCY “Vichitra” SP -45, (Kolkata West International City) Salap Junction, Howrah Amta Road & Bombay Road Crossing, NH- 6, Howrah – 711 403 e-mail – [email protected] Visit us –www.precisionsurvey.co.in 70 FINAL FEASIBILITY REPORT ON “DETAILED HYDROGRAPHY SURVEY IN DEHING RIVER IN ASSAM ( 109.136KMS) Acknowledgement Precision Survey Consultancy (PSC), Salap, Howrah express its sincere gratitude to IWAI for awarding the work and guidance for completing this Project of detailed Hydrographic Survey and the Feasibility Report in Region-II (Dehing River) from Confluence of Dehing and Brahmaputra River near village Lachen to Rail Bridge at Merbil Majuli (109.136 Kms). We would like to use this opportunity to pen down our profound gratitude and appreciations to Ms. Nutan Guha Biswas, IAS, Chairperson, IWAI for spending their valuable time and guidance for compleing this project of “ Detailed Hydrography and Topography survey in Dehing River.” PSC would also like to thanks Shri Pravir Pandey, Vice Chairman, IA&AS., Shri Alok Ranjan, Member (Finance) and Shri S.K.Gangwar, Member (Technical). PSC wishes to express their gratitude to Cdr. Ashish Arya, Hydrographic Chief, IWAI, Cdr. P.K. Srivastava, Ex. Hydrographic Chief, Shri S.V.K. Reddy, Chief Engineer-I, IWAI for his guidance and inspiration for this project. PSC would also like to thank Shri Rajiv Singhal, A.H.S., IWAI for invaluable support and suggestions provided throughout the survey period. PSC is pleased to place on record our sincere thanks to other staff and officers of IWAI for their excellent support and co-operation throughout the survey period. Document History: Final Feasibility Report of River: Dehing, Assam 2 | P a g e Survey Period: From 08-11-15 to 30-11-15 70 FINAL FEASIBILITY REPORT ON “DETAILED HYDROGRAPHY SURVEY IN DEHING RIVER IN ASSAM ( 109.136KMS) List of Abbreviations CD Chart Datum DGPS Differential Global Positioning Systems ETS Electronic Total Station GPS Global Positioning Systems LBM Local Bench Mark MSL Mean Sea Level RL Reference Level SD Sounding Datum SBAS Satellite-Based Augmentation System TBC Trimble Business Centre FRP Fiber Reinforced Plastic Table 1 List of Abbreviations Document History: Final Feasibility Report of River: Dehing, Assam 3 | P a g e Survey Period: From 08-11-15 to 30-11-15 70 FINAL FEASIBILITY REPORT ON “DETAILED HYDROGRAPHY SURVEY IN DEHING RIVER IN ASSAM ( 109.136KMS) Table of Contents 1. - Section-I Introductory Considerations:- ................................................................................................... 12 1.1-River Course: Background information, Historical Information, Origin, End:- ....................................... 12 1.2-Tributaries / Network of River/ Basin:- .................................................................................................... 13 1.3-State / District through which river passes:- ............................................................................................. 13 1.4-Project Site Location Map:- ...................................................................................................................... 13 1.5 River Key Map .......................................................................................................................................... 14 1.6-Scope of work:- ......................................................................................................................................... 15 Section-2: Methodology Adopted to undertake Study ................................................................................... 16 2.1-Methodology Adopted including Resources and equipment used and calibration:- ................................. 16 2.2-Description of Bench Marks (B.M) / authentic Reference Level used:- ................................................... 18 2.3-Tidal Influence Zone and tidal variation in different stretches:- ............................................................... 19 2.4-Methodology to fix Chart Datum / Sounding Datums in Tidal and Non-Tidal area:- .............................. 19 2.5-SixYears minimum and maximum Water Levels:- ................................................................................... 19 2.6- Salient Features of Dam, Barrages, Weirs, Anicut, Locks, and Aqueducts etc.:- .................................... 19 2.7-Description of erected Bench mark pillar:- ............................................................................................... 19 2.8 Details of collected Water level of different gauge stations:- ................................................................... 20 2.9-Chart Datum / Sounding Datum and Reductions details:- ........................................................................ 20 2.10-High Flood Level (H.F.L) at known Gauge Stations:- ............................................................................ 21 2.11- Graph: Sounding Datum and HFL vs. Chainage:- ................................................................................. 21 2.12-Average Bed Slope:- ............................................................................................................................... 22 2.13 Details of Dam, Barrages, Weirs, Anicut, etc. w.r.t. MSL:- ............................................................... 22 2.14 Details of Locks:- ................................................................................................................................ 22 2.15 Details of Aqueducts:- ......................................................................................................................... 22 2.16 - Details of existing Bridges and Crossings over waterway:- ................................................................. 23 2.17- Details of Other Cross structures, pipe-lines and underwater cables:- .................................................. 23 2.18-High Tension Lines / Electric Lines:- ..................................................................................................... 23 2.19 Current Meter and Discharge Details:-.................................................................................................... 24 2.20 - (a) Soil Sample Locations:- ................................................................................................................... 24 b) Water Sample Locations:- ........................................................................................................................... 24 Section-3: Description of Waterway:- ............................................................................................................. 25 3.1 From Chainage 0.00 Km to Chainage 10.00 Km (Brahmaputra Confluence to Jokai Kachari Gaon):- ............................................................................................................................................................ 25 3.2-From Chainage 10.00 Km to Chainage 20.00 Km (Jokai Kachari Village to Chakoi Pathar Gaon):- ...... 26 3.3 -From Chainage 20.00 Km to Chainage 30.00 Km (Chakoi Pathar Gaon to Sessakiner Bridhi Block):-............................................................................................................................................................ 28 3.4-From Chainage 30.00 Km to Chainage 40.00 Km (Sessakiner Bridhi Block to Bali Gaon):- .................. 29 3.5-From Chainage 40.00 Km to Chainage 50.00Km (Bali Gaon to Kachomari Deori Gaon):- .................... 30 3.6-From Chainage 50.00 Km to Chainage 60.00 Km (Kachomari Deori Gaon to Dhariatoli Gaon):- ......... 32 3.7-From Chainage 60.00 Km to Chainage 70.00 Km (Dhariatoli Gaon to Chaharikata N.C. Block-3):- ..... 34 3.8-From Chainage 70.00 Km to Chainage 80.00 Km (Chaharikata N.C. Block-3 to Kenduguri Village):- . 35 3.9-From Chainage 80.00 Km to Chainage 90.00 Km (Kenduguri Village to Hatibandha Village):- ............ 36 3.10-From Chainage 90.00 Km to Chainage 100.00 Km (Hatibandha Village to Tingrai Nepali village):- .. 38 Document History: Final Feasibility Report of River: Dehing, Assam 4 | P a g e Survey Period: From 08-11-15 to 30-11-15 70 FINAL FEASIBILITY REPORT ON “DETAILED HYDROGRAPHY SURVEY IN DEHING RIVER IN ASSAM ( 109.136KMS) 3.11-From Chainage 100.00 Km to Chainage 109.136 Km (Tingrai Nepali Village to Merbil Majuli Village):- ......................................................................................................................................................... 40 Hydrographic Survey ...................................................................................................................................... 43 Section 4: Terminals .......................................................................................................................................... 51 4.4 Details of Land use, owner etc:- ................................................................................................................ 51 Section 5: Fairway Development .....................................................................................................................