Hydropower
Recent Developments
The Foothills Project has been under consideration by the Denver Board of Water Commissions for many years. It is one of the major steps in the continued efforts of the Board to provide...
Overtopping of Small Dams?An Alternative for Dam Safety
A research effort was initiated in 1983 by the Bureau of Reclamation to gain insight in the development of cost-effective modifications to small embankment dams which would enable them...
Planned Overtopping of Embankments Using Roller Compacted Concrete
Three recent projects are discussed where the economy and versatility of roller compacted concrete (RCC) were utilized to allow flood water overtopping of small to medium size embankment...
Embankment Overtopping
Embankment overtopping and dam safety are major concerns of civil engineering and the general public. Very little is known about overtopping events and much less has been published or...
Hydraulic Study Requirements for Bulb Type Hydropower Units at a Navigation Lock and Dam
A replacement Lock and Dam at Alton, Illinois on the Mississippi River is presently under construction. This paper presents the results of studies performed for adding six bulb type hydropower...
Unique Utilization of a Physical Model to Develop a Construction Sequence of a Major Cofferdam
Lock and Dam 26 Replacement is being constructed on the Mississippi River about 2 miles downstream of the existing Locks and Dam No. 26 at Alton, Illinois. This paper discusses the unique...
Small Water Users�Planning Crisis
Planning to rehabilitate small water systems�both irrigation and municipal water supply�often is ignored. In contrast, planning for new construction and for operations/maintenance work...
New Safety for Old Dams
Shortly after the Phase I inspection program conducted by the U.S. Army Corps of Engineers in 1978-81, the Pennsylvania legislature authorized $300 million for repair of dams, ports and...
The Hydroelectric Barge
The nation's inland waterway system includes many low head locks and dams, with undeveloped hydropower potential estimated in excess of 1,100 MW. For most of these dams, hydro...
Libby Rereg's Combined Spillway and Powerhouse
The existing powerhouse at Libby Dam, located near Libby, Montana has four generating units for a total of 420 MW. Provisions have been made which will allow doubling the plant rating...
Performance of Cogoti Dam Under Seismic Loading
At the time of its completion in 1938, the 280 ft (85 m) high Cogoti concrete face rockfill dam was exceeded in height by only one other dam of its type in the world, Salt Springs Dam....
New Exchequer Dam, California
New Exchequer Dam design, in 1963, was in the transition period in which dumped rockfill was being recognized as having undesirable settlement characteristics, and compaction of rockfill...
Design, Construction & Performance of Fades Dam
The project, construction and performance of les Fades dam are described. Les Fades dam is one of the first concrete faced rockfill dams compacted with a vibratory roller. A vibratory...
Weak Rock in Two Rockfill Dams
Two South Australian concrete face compacted rockfill dams, built from soft rock won from each dam site, have performed successfully in service with only small leakage and settlements...
Alto Anchicaya Dam?Ten Years Performance
The general aspects of design and construction of the Alto Anchicaya Dam duilt during 1970 - 1974 in Colombia, South America are described. The paper refers to the performance of the structure...
Membrane Sealing of Rouchain Dam
A synthetic sealing membrane was used to prevent excessive leakage through the facing of an embankment dam. The works, which were completed rapidly and at low cost, enabled the reservoir...
Golillas Dam?Design, Construction and Performance
Golillas Dam is a concrete face, gravel fill dam, 125 m (410 ft) high built seven years ago that has had some difficulties during its initial operating years; due to the shape of the canyon,...
The Outardes 2 Concrete-Faced Rockfill Dam
The main dam of the Outardes 2 development consists of a rockfill embankment, built against an old water-retaining structure, and faced with an upstream concrete membrane. The interface...
Concrete Face Rockfill Dams of the Winneke Project
Two of the three dams forming the Winneke Reservoir, near Melbourne, Australia, are concrete face rockfill dams. A minor dam forming the sludge storage pond for the project's...
The R. D. Bailey Dam, a Concrete-Faced, Earth-Rockfill
A case history for the R. D. Bailey Dam, describing its comparatively unique design and construction considerations, and its operational performance since initial reservoir filling in...
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