Geotechnical Aspects of River Bank Erosion
The principal geotechnical mechanisms of river bank failure are identified on the basis of extensive field investigations on many different river systems. The role of each factor depends...
Beach Erosion Protection Methods: Case Study of Dar City Tanzania
Coastal Tanzania has been experiencing severe beach erosion. Beach erosion is much felt in coastal cities like Dar es Salaam, Tanga etc. Beach erosion in Dar es Salaam has caused damage...
Hydraulic Transient Analysis of High-Head Hydropower Project
An iterative computer simulation procedure called LIQT (Liquid Transient), which performs simulations of hydraulic transients in closed conduit hydro-power systems, is used to estimate...
Impact of Risk-Based Analysis on Hydrologic Design Practices
This paper provides a brief review of the current hydrologic design practices of the U.S. Army Corps of Engineers (USACOE) for safety inspection of dams and the current hydrologic design...
Two Case Studies of Stochastic Identification of Aquifer Hydraulic Parameters and Natural Recharge
A method to identify aquifer transmissivity, storativity and natural recharge (inverse modeling), based on a geostatistical approach is presented. The basic assumptions of the method are...
Lower Santa Ana River Hydraulic Design for Levee Overtopping
The purpose of overtopping or freeboard design is to minimize damages and catastrophic failure from floodwaters overtopping levees. This case study is presented to show the approach taken...
Sediment Basin Design Using 2-D Techniques
A set of procedures for the design of sediment basins is outlined; it is based on two-dimensional hydrodynamic analyses, in contrast to conversional practice which has used only one-dimensional...
Design Procedures for Soil-Cement Grade-Control Structures
Grade-control structures are effective channel-stabilization measures that may be used singly or as a part of a stabilization plan involving such measures as bed and bank revetment. Grade-control...
Case Study Incremental Approach to Cost Analysis for Improvements to Wise Powerhouse Penstock
In 1980, Pacific Gas and Electric Company (PG&E) began studying the addition of a second powerhouse to the existing Wise Hydroelectric Project. Because of the existing project...
Storage Reallocation in Hydropower Projects of North Georgia
Over the past 40 years, the Corps of Engineers has built nine multiple purpose storage projects in Georgia, with hydroelectric power production as a major purpose. Six of the projects...
Simulations of Multireservoir System Operation
Simulation modeling has evolved from a direct examination of operating policies into operational decision support systems, integrated multiple use expansion planning systems and special...
Design Considerations for a Penstock Located in an Outlet Tunnel at the Jennings Randolph Dam in West Virginia
The proposed production of hydropower at this flood control-recreation dam involves the installation of a 78 inch diameter steel penstock at the crown of the existing tunnel. The penstock...
A Comparative Hydraulic Model Study of an Orifice Spillway
The results of a hydraulic model study to investigate the feasibility of using an orifice spillway at a generating station in northern Manitoba, Canada are presented. It has been suggested...
Modeling a Small Side Channel Spillway-Model Testing Need Not Be Expensive or Time-Consuming
Effective hydraulic modeling can often be done without sophisticated laboratory equipment and instrumentation, yet provide adequate design information in less time and at less cost than...
Spillway Crest Development through Model Testing on Chenderoh Ambursen Dam
The Chenderoh Hydroelectric Project on the Perak River in Malaysia was placed in service in 1930. The hollow Ambursen dam was modified in 1944 by the additions of a concrete cap with flashboards....
Case Study Safety Evaluation of the Existing Wise Powerhouse Penstock
A 70-year old riveted penstock was analyzed to determine its actual design strength in response to the discovery of significant pressure rises under normal operating conditions due to...
Water Quality Studies for Hydro Licenses
Three case studies on the impact of hydro operation on dissolved oxygen concentration performed for hydro license applications are utilized in a discussion of water quality issues. A negative...
Financing and Marketing Feasibility Tests for Proposed Federal Hydroelectric Power Projects
The Southwestern Power Administration (SWPA), an agency of the Department of Energy, is responsible for marketing the power and energy produced at Federal hydroelectric power projects...
Turbine Improvements through Model Testing, a Case Study
An air-flow, propeller type, rim-drive turbine is being manufactured to be used in sites with heads ranging from 12 to 28 feet. A laboratory turbine model study was conducted to optimize...
Field Efficiency Testing of Hydroelectric Turbines
The wide variability of conditions encountered in field testing of turbines is illustrated by examining two case studies with widely different scenarios. One site involved field acceptance...
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