Government of Nepal Ministry of Irrigation Department of Irrigation Planning Design Monitoring and Evaluation Division Jawlakhel, Lalitpur
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Government of Nepal Ministry of Irrigation Department of Irrigation Planning Design Monitoring and Evaluation Division Jawlakhel, Lalitpur PREFEASIBILITY STUDY OF KALIGANDAKI-TINAU DIVERSION PROJECT Final Report Volume I: Main Report June, 2011 Submitted by: Pre-Feasibility Study of Kaligandaki-Tinau Diversion Project ACKNOWLEDGEMENT ACKNOWLEDGEMENT SILT Consultants (P) Ltd. would like to express its sincere gratitude to the Department of Irrigation (DoI) for entrusting it the responsibility of conducting the Pre-feasibility study of Kaligandaki-Tinau Diversion project in Palpa, Rupandehi and Kapilvastu distiricts of Nepal. We are particularly grateful to Mr. Shiva Kumar Sharma, DDG, DOI; Mr. Sudhir Man Basnyat, DDG, DOI; Mr. Ashis Bhadra Khanal, SDE, DoI; Mr. Ajaya Adhikari, Engineer, DOI; and Ms. Pramila Shrestha, Geologist, DOI for their cooperation and guidance in conducting the study and expect the same in future as well. We are also thankful to them for providing us their precious time and help making this project up to the Final Report. We are also very thankful to local community, who spent their important time and effort with the study team providing their proper and priceless responses to our quiries and extended us immense assistance and support during the site visit. We are very much thankful to local people, particularly, Mr. Padam Aryal, Mr. Arjun Shrestha, Mr. Mohan Amatya, and Ms. Laxmi Magar for their kind help during the field visit. The team is thankful to all of them, who are involved with this project directly and indirectly. Finally, we are grateful to all the members of the study team, who are involved in this project and helped us in one way or other through their teamwork, enthusiasm and active participation with their important suggestions while preparing this project report. SILT Consultats (P) Ltd. SILT Consultants (P.) Ltd. a Pre-Feasibility Study of Kaligandaki-Tinau Diversion Project TABLE OF CONTENTS TABLE OF CONTENTS ACKNOWLEDGEMENT ................................................................................................................................................ a Table of Contents ....................................................................................................................................................... b List of Tables .............................................................................................................................................................. g List of Figures ............................................................................................................................................................. h Acronyms .................................................................................................................................................................... i Salient Features ......................................................................................................................................................... k Executive Summary .................................................................................................................................................... n 1 INTRODUCTION .............................................................................................................................................. 1-1 1.1 Background .......................................................................................................................................................1-1 1.2 Project Components ..........................................................................................................................................1-2 1.2.1 Component-A: Development of Irrigation ...............................................................................................1-2 1.2.2 Component-B: Development of Hydropower .........................................................................................1-2 1.3 Objectives of the Study ......................................................................................................................................1-2 1.4 Scope of Work ...................................................................................................................................................1-3 1.4.1 Procurement of Satellite Imageries and Processing ................................................................................1-3 1.4.2 Collection of Field Data/Survey Work .....................................................................................................1-3 1.4.3 Office Work..............................................................................................................................................1-3 1.5 Expected Output of the Study ...........................................................................................................................1-4 2 APPROACH AND METHODOLOGY................................................................................................................... 2-1 2.1 Approach ...........................................................................................................................................................2-1 2.1.1 General Approach ....................................................................................................................................2-1 2.1.2 Project Management Approach ..............................................................................................................2-1 2.1.3 Approach to Inventory Update and Desk Study ......................................................................................2-2 2.1.4 Approach to Field Investigation and Survey ............................................................................................2-2 2.1.5 Approach to Planning and Investigation .................................................................................................2-2 2.2 Methodology .....................................................................................................................................................2-3 2.2.1 Desk Study/Inception Phase ....................................................................................................................2-3 2.2.1.1 Inception Meeting of Consultants..................................................................................................2-3 2.2.1.2 Review of Literature, Previous Studies and Reports ......................................................................2-3 2.2.1.3 Procurement of Satellite Image .....................................................................................................2-4 2.2.1.4 Potential Area Delineation for irrigation Development .................................................................2-4 2.2.1.5 Collection of Hydro-Meteorological Data for Water Resources of the Kaligandaki River Basin ....2-4 2.2.1.6 Inventory of Irrigation Systems in Rupandehi and Kapilvastu Districts .........................................2-4 2.2.1.7 Preparation of Updated Work Plan ................................................................................................2-4 2.2.1.8 Preparation of Proposed Table of Content for the Final Report: ...................................................2-5 2.2.1.9 Preparation and Submission of Inception Report: .........................................................................2-5 2.2.2 Field Investigation and Survey .................................................................................................................2-5 2.2.2.1 Phase-I Field Work .........................................................................................................................2-5 2.2.2.2 Phase-II Field Work ........................................................................................................................2-7 2.2.3 Methodology of Planning and Investigation ...........................................................................................2-8 SILT Consultants (P.) Ltd. b Pre-Feasibility Study of Kaligandaki-Tinau Diversion Project TABLE OF CONTENTS 3 THE PROJECT AREA......................................................................................................................................... 3-1 3.1 Location And Accessibility .................................................................................................................................3-1 3.2 Climate of Study Area ........................................................................................................................................3-2 3.3 Topography And Land Use ................................................................................................................................3-2 3.4 Potential Area for Irrigation Development ........................................................................................................3-3 3.5 Existing Irrigation Situation ...............................................................................................................................3-3 3.6 Socio Economic Profile ......................................................................................................................................3-9 3.6.1 General ....................................................................................................................................................3-9 3.6.2 Demographic Characteristics ...................................................................................................................3-9