Uplift Pressure below Gravity Dams on Rock
The magnitude of the uplift force at the base of a concrete gravity dam founded on rock is strongly dependent on the properties of the discontinuities within the rock mass. This paper...
Tunneling through an Existing Concrete Masonry Dam
The Gregory B. Jarvis Hydroelectric Project is located in Upper New York State on the West Canada Creek. Existing facilities include a non-overflow concrete gravity dam, 65 feet long and...
The Modification of Leroy Anderson Dam
An extensive modification program has been implemented to improve the safety and enhance the performance of the Leroy Anderson Dam. The Leroy Anderson Reservoir has a maximum storage of...
Freeboard Allowances for Chute Spillways
Allowances must be made for the physical phenomena which cannot be modelled, such as wave action, air bulking, splash and spray; the simplifications of behaviour implicit in the calculations;...
Hydraulic Model Studies - Sidney A. Murray Jr., Hydroelectric Plant
The power plant is located at the Old River Control of the Lower Mississippi River (Louisiana). It consists of an intake channel about 5000 ft long, a power plant with eight bulb units...
Hydraulic Model Tests of Flow around Penstock Suspended inside the Tunnel for Design of a Small Hydro
The proposed hydropower project in the State of Virginia involves design and construction of a steel penstock hung from the crown of an existing outlet tunnel at this U.S. Army Corps of...
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...
Mitigation of Ice Effects at Hydroelectric Intake Structures
The design and operation of hydroelectric facilities throughout the northeast United States and Canada must contend with winter conditions for a large part of their yearly operation. During...
Licensing the Moose River Hydroelectric Project
This paper describes environmental considerations in the licensing and permitting of the Moose River Hydroelectric Project, a 12.2 MW development in Central New York State. It illustrates...
Optimum Use of the Water Resource a Factor in the Hydroelectric Relicense Process
To meet Federal Energy Regulatory Commission (FERC) requirements for a new license, owners must demonstrate full development of the available water resource. This paper presents an approach...
Utility Options for Meeting Dissolved Oxygen Limits for Hydroelectric Power Plant Discharges
Due to increased attention by regulating agencies to the dissolved oxygen levels of water released through hydroelectric power plants, the Electric Power Research Institute has developed...
Improvement of Dissolved Oxygen Levels at Shepaug Hydro Station
Discharge from Shepaug Dam in Connecticut fall below the state standard for dissolved oxygen in summer and early fall, because of thermal stratification of the upstream eutrophic reservoir....
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...
Tailwater Management for Beneficial Uses
Tailwaters can provide significant benefits for recreation, fisheries, assimilative capacity for treated wastewaters, and water supply for municipalities and industries. Development and...
A Water Quality Impact Analysis of a Hydropower Facility
A low-head hydropower generating facility has been proposed at an existing dam site on a river. The state environmental agency has required an environmental evaluation into the potential...
Balancing Hydropower Development in the Ohio River Basin
A large number of retrofit hydroelectric projects have been proposed at existing navigation dams in the Ohio River basin. These proposals involve potentially adverse environmental impacts,...
The Groundwater Studies for the Harrisburg Hydroelectric Project
The proposed Harrisburg Hydroelectric Project is a conventional 34.4-MW power facility located on the Susquehanna River in Harrisburg, Pennsylvania. The project will raise the river water...
Optimization of Power Production Based on Efficiency Data
Computer programs dealing with different parts of the optimization process are in operation in Norway today, and they include: the hydrological part from weather forecast to reservoir...
Hydroelectric Generator Rewinding Pitfalls and Means to Ensure Success
The failure or success of generator rewinding begins well before the actual rewind, and many of the pitfalls can be avoided if owners take some very important steps prior to the rewind...
Optimizing Joint Load Control for Hydroelectric Plants
This paper discusses a method to minimize water usage at a multi-turbine hydroelectric generating plant. At plants which do not spill water this optimization is directly converted to extra...
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