4-Flood Plain Zoning - Hydrological Considerations.

Abstract

Every year floods cause heavy damages of life and property in our "ountry. Inspite of significant achievements in flood control with emphasis on structural measures, increasing pressures of growing population and encroachments into flood plains are resulting in increasing flood damages. The regulation of flood hazard areas; and enactment and enforcement of flood plain zoning could in short term prevent more damage from flooding and in long term significantly reduce such damage. Hydrologic analysis involving use of techniques for flood frequency analysis, water surface profiles, flood routing, flood plain mapping, etc. have a key role in flood plain zoning. These have been described and discussed in this paper.