Flood Control and Drainage Engineering, Fourth Edition

Primarily written as course material on flood control and drainage engineering for advanced students of civil engineering, this new fourth edition is again thoroughly revised. It accommodates recent developments in remote sensing, information technology and GIS technology. New added material deals with flood management due to Tsunami waves, flooding due to dam failure and breaking of embankments, application of dredging technologies, problems of flood forecasting, flood plain prioritization and flood hazard zoning, and engineering measures for flood control. Drainage improvement is tackled, with particular regard to salinity and coastal aquifer management from the ingress of sea water. The book includes design problem-solving and case studies, making it practical and applications-oriented. The subject matter will be of considerable interest to civil engineers, agricultural engineers, architects and town planners, as well as other government and non-government organizations.

Table of Contents:
Contents 1. FLOOD PROBLEMS 1.1 Introduction 1.2 Causes of flooding and economic losses 1.3 Flood management measures 1.4 Flood control strategies 1.5 Alleviation of flooding 2. ESTIMATION OF DESIGN FLOOD 2.1 Introduction 2.2 Methods of design flood computations 3. FLOOD ROUTING THROUGH RESERVOIRS AND CHANNELS 3.1 Flood routing through reservoirs—General 3.2 Basic Principles of routing 3.3 Routing through river channels 3.4 Hydraulic flood routing 4. DESIGN OF SPILLWAYS 4.1 Functions of spillways 4.2 Spillway classification 4.3 Types of spillways 5. FLOOD MITIGATION THROUGH PLANNING OF RESERVOIR CAPACITIES AND OPERATlON OF RESERVOIRS 5.1 Introduction 5.2 General design factors 5.3 Storage capacity determination 5.4 Live storage capacity 5.5 Flood storage 5.6 Dead storage 5.7 Reservoir operation fundamentals 5.8 Reservoir operation from practical considerations 6. FLOOD MITIGATION THROUGH RIVER PROTECTION AND IMPROVEMENT WORKS 6.1 Introduction 6.2 Theoretical background in river engineering 6.3 River improvement works 6.4 Channel improvement 6.5 Cutoffs 6.6 Diversion 6.7 Flood relief or by-pass channel 6.8 Intercepting of cutoff channel 6.9 Floodways 6.10 Flood-plain zoning or redevelopment 6.11 Spreading grounds 6.12 Soil conservation methods 7. FLOOD FORECASTING, WARNING AND FLOOD FIGHTING 7.1 General 7.2 Basic data 7.3 Communication network 7.4 Forecasting techniques and procedures 7.5 Determination of runoff from rainfall data 7.6 Method of forecasting stages 7.7 Flood warning 7.8 Engineering measures for flood fighting 8. ECONOMICS OF FLOOD CONTROL, PROJECT 8.1 General 8.2 Estimating flood damages 8.3 Estimates of benefit of flood control 8.4 Cost-benefit analysis for a flood control project 8.5 Flood control planning through remote sensing 9. DESIGN OF SUBSURFACE DRAINAGE SYSTEM 9.1 Introduction 9.2 Necessity for drainage 9.3 Removal of drainage water—Underdrains and their layout 9.4 Design of closed underdrains 9.5 Design of open underdrain 9.6 Design for leaching requirement 10. DESIGN OF SURFACE DRAINAGE SYSTEM 10.1 Necessity of surface drainage 10.2 Surface drainage channels design considerations 10.3 General design consideration of outfall culvert 10.4 Design consideration of tidal channels and outfall sluices 11. WATER-LOGGING AND SALINITY 11.1 Introduction 11.2 Causes of water-logging problem 11.3 Causes of the salinity problem 11.4 Salt water intrusion in coastal aquifers 11.5 Causes of the drainage problem 11.6 Remedial measures to combat water-logging and salinity 11.7 Important drainage projects and a case study 12. APPLICATION OF REMOTE SENSING TECHNOLOGY FOR FLOOD CONTROL 12.1 Introduction 12.2 Application for planning flood control measures 12.3 Flood warning 12.4 Concluding remarks 13. FLOOD PLAIN DELINEATION AND FLOOD HAZARD ASSESSMENT 13.1 General 13.2 Flood plain delineation from remote sensing 13.3 Estimation of flooded area 13.4 Flood plain delineation from digital terrain models (DTM) 13.5 Geo-referencing of the water level points 13.6 Creating a water surface 13.7 Flood plain delineation 13.8 Flood hazard assessment 13.9 Flood hazard zone indexing—simplified approach 14. FLOOD DAMAGE MANAGEMENT—Tsunamis and Storm Surges 14.1 Introduction 14.2 Characteristics of Tsunami Waves 14.3 Tsunami Run up and Damage 14.4 Tsunami Forecast and Warnings 14.5 Flooding due to Storm Surges 15. FLOODING DUE TO COLLAPSE OF DAMS—Breaching of Flood Levees and Urban Coastal Areas 15.1 Introduction 15.2 Cases of Failure of Earth Dams 15.3 Method of Analysis 15.4 Breaching of Flood Levees 15.5 Analysis and Results 15.6 Flooding in Urban Coastal Areas INDEX

About the Author :
The author, presently retired, served as professor and head of the Civil Engineering Department at the Indian Institute of Technology (IIT), Kharagpur. He also served the Calcutta Port Trust as Chief Hydraulic Engineer on deputation from IIT. Professor Ghosh is a member of several learned societies and recipient of the Commonwealth Scholarship for Post Doctoral Research at Imperial College, London, UK