Storage Works-Reservoirs Reservoir Storage Zone and Uses of Reservoir Other terms related to reservoirs Planning of Reservoirs Effect of Sedimentation in Planning of Reservoirs Procedure for Planning a New Reservoir Life of reservoir and design criteria Geological Explorations for Reservoir Sites Stages of Investigation Fixing the Capacity of the Reservoirs Precipitation, Run-Off and Silt Record Elevation Area Capacity Curves Demand, Supply and Storage Density Current aspects and Location of outlets Data on Engineering and Geological Aspects Sediment Load Measurements Fixation of Live Storage Capacity for a Given Demand Flood Control Storage Rational Method of Derivation of Design Flood From Storm Studies and Application of Unit Hydrograph Principle Reservoir losses and their Minimization Wind Breakers Design of Reservoirs Check Dams Density Current Removal of Deposited Sediment Reservoir Operation Operation of Single Purpose Reservoirs Operation of System of Reservoirs Selection of Type of Dam Classification and Types of Dams based on different Criteria

Concrete Gravity Dam Water Pressure Weight of Structure Wave Pressure and Wave Height Earthquake Forces Load Combination for Design Rules Governing the Design of Gravity Dams Rules for Design of Concrete Gravity Dam Design Procedure of Gravity Dams Zoning of High Non-Overflow Dams Single Step Method

Earth Dams and Spillways Free Overfall (Straight Drop) Spillway Overflow Spillway Chute Spillway Side Channel Spillway Shaft Spillway Tunnel Spillway Siphon Spillway Special Types of Spillways Shape and Hydraulics of Ogee Crest Discharge Characteristics of Ogee Crest Uncontrolled Flow Discharge Characteristics of Ogee Crests-Controlled Spillway Spillway Profile With Breast Wall Selection of Spillways Conditions Downstream of a Dam Energy Dissipators Bucket Type Energy Dissipators Design of Hydraulic Jump Stilling Basin Type Energy Dissipators

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Bucket type energy dissipators

This type of energy dissipators includes the following:
1. Solid roller bucket
2. Slotted roller bucket
3. Ski jump (Flip/Trajectory) bucket
The shapes of the different types of bucket-type stilling basins have been given in section 4.8.14. Usually the hydraulic jump type stilling basins and the three types of bucket-type energy dissipators are commonly used in conjunction with spillways of major projects. The detailed designs of these are dealt in subsequent sections.
Since energy dissipators are an integral part of a dam‟s spillway section, they have to be viewed in conjuction with the latter. Two typical examples have been shown in Figures 45 and 46, though it must be remembered that any type of energy dissipator may go with any type of spillway, depending on the specific site conditions.

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