Rehabilitation of Plane Nine Dam
Plane Nine Dam, an earthen water supply dam near Altoona, Pennsylvania, was constructed in 1907. The dam performed satisfactorily for more than 80 years but it deteriorated with time and...
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...
Liquefaction Potential Leads to Dam Reconstruction
Results of a visual inspection of the Dundee Dam conducted in 1982 revealed the presence of seepage on the downstream toe of the left embankment. Subsequent subsurface explorations and...
Dam Safety: A State's Perspective
The State's role in the rehabilitation of dams is discussed. The author presents a national picture of dam safety, describes some dam failure statistics on type of dams that have failed,...
Seismic Safety Modification of an Old Earthfill Dam
Chollas Dam was built as a water supply reservoir for the City of San Diego. The reservoir is no longer a part of the municipal water system but has been operated since 1966 as a recreational...
Influence of Early-Age Properties of Shotcrete on Tunnel Construction Sequences
This paper presents a study on influence of the properties of young shotcrete as a tunnel lining on tunnel construction sequences, by a closed-form analytical solution of a circular tunnel....
IVHS: The Invisible Revolution
Federal funding for intelligent vehicle highway systems has increased a hundredfold since 1989, from $2 million to almost $200 million. Transportation planners are looking increasingly...
Sensitivity Analyses for Total-System Performance Assessment
As a follow-on to Sandia's 1991 preliminary total-system performance assessment of the Yuc1ca Mountain site, this paper presents results of some sensitivity analyses that were done using...
The Development of the CRWMS Transportation System
The Transportation System of the Civilian Radioactive Waste Management System (CRWMS) is being developed using a system engineering approach to ensure it is properly integrated into the...
Development of the Planning and Control Segment, CRWMS Transportation System
This paper discusses the current plans for the development of the Planning and Control segment of the SRWMS Transportation System. Each of the four Planning and Control subsystems are...
Development of the Field Operations and Carrier Segments, CRWMS Transportation System
This paper discusses the current status and plans for the development of the Field Operations and Carriage segments of the Transportation System of the Civilian Radioactive Waste Management...
Site and Facility Waste Transportation Planning Documents (SPDs): Status and Findings
Site and Facility Waste Transportation Services Planning Documents (SPDs) are detailed desk-top reference documents that initiate planning for shipping commercial spent nuclear fuel (SNF)...
Human Factors Engineering Program Plan for the Hanford Waste Vitrification Plant
The paper describes the overall human factors program plan while providing more specific information regarding the critical areas of criteria development, dispersed control areas and key...
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