Small Dam Rehabs
The nation's 95,000 small dams face many of the same problems as the rest of its infrastructure, but with less money available for repair. In response, the owners of small...

Geosynthetics in Dam Rehabilitation
In the first part of this paper, a review of the various types of geosynthetics is presented and it is indicated that all types of geosynthetics have been or can be used in dams to perform...

Steel Alternates for the Hoover Dam Bridge
As input to the Environmental Impact Statement studies of appropriate long span bridges were performed for three alternate corridors across the Colorado River near Hoover Dam. Details...

Performance Monitoring of Concrete Structures with Embedded Sensors
This paper describes the use of embedded fiber optic sensors to monitor the performance of reinforced concrete structures. The fiber optic sensors are capable of measuring vibrations,...

Development in Criteria for Dam Corrective Actions
Reviewed is the recent history of the Bureau of Reclamation (Reclamation) Safety of Dams (SOD) Program. Particularly, the development of decision philosophies and technical approaches...

Inspections, Evaluations and Modifications for Corps of Engineers Dams
The Corps of Engineers owns and operates 580 dams in the United States. As these dams become older (199 are over 50 years old), dam safety and modifications play an increasing role in...

Numerical and Centrifuge Modeling of an Arch Dam on Jointed Rock
This paper addresses the stability of an arch dam built on highly fractured argillite. A large concrete thrust block combined with a wing dam forms the left dam abutment. The last FERC...

Three-Dimensional Stability Analysis of Carpenter Dam
This paper describes the three-dimensional stability analysis of Carpenter Dam. The presence of keyed construction joints between dam monoliths at Carpenter Dam can significantly affect...

In Situ Testing Performed at Jackson Lake Dam
Jackson Lake Dam was rehabilitated from 1986 to 1988 to increase seismic stability. Final foundation improvements consisted of dynamic compaction and mixed inplace soil cement columns....

Prediction of Embankment Dam Breaching for Hazard Assessment
Downstream hazard assessments for dams require prediction of 1) whether a breach could form, and 2) the hydraulic characteristics of the breach for use in calculations of discharge and...

Risk-Based Methodology for Seismic Rehabilitation of Earth Dams
A methodology for seismic risk analysis of earth dams is described. The procedure utilizes seismological and geotechnical inputs together with the associated uncertainties and provides...

Reliability Analysis of Navigation Structures
Methods for probabilistic stability analyses of concrete monoliths at hydraulic structures were developed and tested. Numerous analyses were performed using data from six actual structures...

Roller Compacted Concrete for Embankment Overtopping Protection
In the first National Dam Safety Inventory and inspection performed by the Corps of Engineers, the majority of deficiencies found were related to the inability of the project to retain...

Seepage Control in Dam Rehabilitation
This paper is concerned with the control of seepage problems which develop in existing dams. It is prefaced with a discussion of attitudes and experiences that have evolved over the last...

Rehabilitation of Cracked Embankment Dams
Cracking is a common phenomenon in many earth embankment dams and especially those small to medium size dams constructed on compressible soil foundations. Collapsible soil conditions,...

Mud Mountain Dam Concrete Cutoff Wall
Mud Mountain Dam is an earth and rockfill flood control dam on the White River. The dam is located approximately 50 km southeast of Seattle, Washington. The dam was constructed in 1941...

Rehabilitation of Crescent and Vischer Ferry Dams—Construction Techniques & Problem Solutions
This paper reviews some of the problems encountered during the rehabilitation of the Crescent & Vischer Ferry Dams and the techniques used to comply with strict water level regulations...

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...

Seismic Rehabilitation of Earth Dams
The purpose of this paper is to present methods available for engineered remediation of seismically deficient earth dams (not including tailings dams), review their strengths and weaknesses,...

 

 

 

 

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