Development and Evaluation of Remediation Strategies by Deformation Analysis
Deformation analysis is providing guidance for the most efficient and economical seismic remedial treatments for Mormon Island Auxiliary and Sardis dams. The computer program TARA-3FL...
Seismic Stabilization of St. Joe State Park Tailings Dams
Tailings dams constructed by the `upstream' method are known to be seismically vulnerable, but field experience indicates that their seismic stability usually improves following termination...
Seismic Rehabilitation of Echo Lake Dam
Echo Lake Dam is an existing dam raising a natural lake in the Sierra Nevada in California, along the western edge of the Tahoe Basin. The dam was an embankment built with steep, hand...
Liquefaction Evaluation by Seismic Potential Procedure
Empirical procedures in common use for liquefaction evaluation employ information from a variety of sources in order to evaluate whether or not a site will undergo liquefaction. The information...
Reduction of Liquefaction Potential by Compaction Grouting at Pinopolis West Dam, SC
A previous 1984 field study and subsequently published paper (Salley et.al., 1987) described the seismic design background and evaluated the potential success of compaction grouting to...
Prestwood Lake Dam Rehabilitation
The Prestwood Lake Dam located in Hartsville, South Carolina is owned by Sonoco Products Co. It originally was a wood structure built in 1895. That structure was washed out by a hurricane...
Improving Dam Safety Using a Fin Drain
Bloemhoek Dam is an embankment dam with a maximum height of 21 m, which leaked severely after first filling in 1978. This leakage resulted in the development of `boils' over a portion...
Graham Lake Dam Remedial Measures Project
Graham Lake Dam consists of a 550-foot long earth embankment and an 80-foot long concrete spillway. Several concerns were identified during project inspections including limited spillway...
Certified Safety Assessment of Zoccolo Dam
The paper reports one of the activities carried out in the framework of a so called `certified assessment of safety' program activated by ENEL SpA - Italian National Electric Board - in...
Software Applications for Monitoring Instrumentation Data
The initial program for reducing instrumentation data, used by the Geotechnical Branch of the Louisville District Corps of Engineers, was written in 1969. This program did not allow for...
Evaluation of Rehabilitation Needs for Hydraulic-Fill Dam
This paper describes the application of analytical methodologies developed for seismic stability analysis of dams in the western U.S. (particularly the Lower San Fernando Dam in Southern...
Economical Solution for Flood Overtopping Potential at Senator Wash Dam
A breach analysis of North Dike for overtopping with the crest modified to the lower elevation was required to ensure the breach discharge would be adequate to prevent overtopping of Senator...
Remedial Grouting at Calero Dam
This paper describes the design and construction of a remedial grout curtain to resolve a long-standing seepage condition at Calero Dam, located at the south end of the highly-populated...
Experimental Evaluation of Reservoir Bottom Remediation Material
Open trenches developed through a compacted clay liner on the bottom of a reservoir. An experimental investigation has been conducted to evaluate the feasibility of using silt-sized, nonplastic...
General Design and Construction Considerations for Remedial Seepage Control
All earth and rock-fill dams are subject to seepage through the embankment, foundation and abutments. Methods for remedial seepage control include storage restriction, grouting, upstream...
The Use of Post-Tensioned Anchorages on the Arch Portion of Stewart Mountain Dam, Arizona
Post-tensioned rock anchorages were selected by the Bureau of Reclamation (Reclamation) to stabilize Stewart Mountain Dam against potential seismic loadings. The use of such anchorages...
A Review of Drilling and Grouting Methods for Existing Embankment Dams
With the increasing emphasis being placed on dam rehabilitation and repair, more dam engineers are faced with the need to interface with drilling and grouting specialists. Regretfully,...
Remedial Design and Construction to Improve a Sliding Embankment
The paper describes the studies made to identify the nature of possible remedial measures such as improved drainage, removal of the weak clay layer or a provision of a buttressed dam....
Seismic Stability Modification Designs for Embankment Dams
The Bureau of Reclamation (Reclamation) has recently designed rehabilitations for four embankment dams to ensure their seismic stability. A fifth project is scheduled for construction....
Seismic Stability Modification Requirements for Pineview Dam
Pineview Dam is located 8 km upstream from Ogden, Utah, and about 8 km from the Wasatch Fault Zone. Preconstruction information and construction records available at the outset of the...
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