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Status of Hydropower Development at Corps of Engineers Dams
The Corps of Engineers is the largest single supplier of hydroelectric power in the United States with 74 projects and an installed capacity of 20,839 MW. In addition, 33 Corps projects...

Rule Curve Operation at Terzaghi Dam to Pass the Probable Maximum Flood
Terzaghi dam is located on the Bridge River, a tributary of the Fraser River. The spillway was originally designed for the 1000-year flood. Probable Maximum Flood (PMF) studies completed...

Some Pertinent Considerations in Dam and Reservoir Design
Two important considerations in designing and constructing a multipurpose earthdam and reservoir are to minimize losses in the event of dam failure because of overtopping, and to conserve...

Automation of Existing Dam Control Schemes
For installations that are already in operation, the following advantages are obtained from installing new electronic equipment: In the case that the dam or certain measuring stations...

Challenging Site Conditions Lead to Unusual and Innovative Powerhouse Design Features
Pacific Gas & Electric Company's recently completed Newcastle Powerhouse is located on the shore of Folsom Lake near Auburn, California. The $26 million facility uses...

Uplift under Concrete Dams on Rock
While the possible existence of uplift pressures within dams and foundations is no longer questioned, there is still considerable controversy over the magnitude and distribution of uplift...

Uplift Pressures in Existing Concrete Dams
This paper is a brief summary of a report of the same title prepared for the Electric Power Research Institute (EPRI) as part of its program to study ways to economically improve dam safety....

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...

Effect of Seepage in Cracks in Older Gravity Dams
One of the many problems encountered by dam designers is that of estimating uplift pressures in cracks within older concrete dams. As part of ongoing research, we are investigating this...

Lopez-Angostura Power Tunnel
The Lopez-Angostura Project is located on the Yaque del Norte River in the Dominican Republic near the City of Santiago. A 24 m high dam, a 3.6 km long power tunnel, a pit powerhouse with...

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...

Cofferdams: An Integral Part of Small Hydro Design
Cofferdam construction costs can be a major factor in the viability of a small hydro development. For this reason, cost-effective design and construction are critical. A cost-effective...

China's Ertan Hydroelectric Project
Ertan will be a major hydroelectric project on the Yalong River in China. The project consists of a 240 m high arch dam, two tunnel spillways, an overflow spillway, mid- and low-level...

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...

Flashboard Alternatives Including Rubber Dams
This paper reviews some common flashboard methods used in the northeastern part of the U.S., and discusses the advantages and disadvantages of each type. The inflatable rubber dam is presented...

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...

Analysis and Rehabilitation of Ambursen Dams
This paper deals with the investigation and analysis of two Ambursen dams located in the upper Midwest. These investigations revealed that the original design contained significant defects,...

Dam Rehabilitation and Fish Lift Design at the Pejepscot Hydroelectric Project
The rehabilitation work on the existing rockfilled timber crib dam comprised an assessment of the existing dam stability; analysis of the existing hydraulic conditions to establish the...

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...

Physical Model Study of New York State Dam
The New York State Dam is located on the Mohawk River near its confluence with the Hudson River. Downstream from the dam, the river flow is divided into six channels as the water passes...

 

 

 

 

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