National Dam Safety Program. College Lake Dam (Inventory Number VA 68002), James River Basin, City of Lynchburg, Virginia. Phase I Inspection Report PDF Download
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Author: James A. Walsh Publisher: ISBN: Category : Languages : en Pages : 44
Book Description
The College Lake Dam is an earthern embankment about 300 feet long and 35.4 feet high. The dam is owned and maintained by the City of Lynchburg. The dam is classified as an intermediate size structure with a high hazard classification. The spillway is a deteriorated masonry weir across a rock cut located in the right abutment. This reservoir is used for recreation. Based on criteria established by the Department of the Army, Office of the Chief of Engineers (OCE), the Spillway Design Flood (SDF) is the Probable Maximum Flood (PMF). The spillways will pass 10 percent of the PMF without overtopping the dam. Therefore the spillway is adjudged as inadequate but not seriously inadequate. The visual inspection revealed no problems or remedial measures in need of immediate attention. There is no regular maintenance operation program or warning system, and it is recommended that a maintenance program and a warning system be established. The maintenance items listed should be accomplished as a part of the regular maintenance program within the next 12 months.
Author: James A. Walsh Publisher: ISBN: Category : Languages : en Pages : 44
Book Description
The College Lake Dam is an earthern embankment about 300 feet long and 35.4 feet high. The dam is owned and maintained by the City of Lynchburg. The dam is classified as an intermediate size structure with a high hazard classification. The spillway is a deteriorated masonry weir across a rock cut located in the right abutment. This reservoir is used for recreation. Based on criteria established by the Department of the Army, Office of the Chief of Engineers (OCE), the Spillway Design Flood (SDF) is the Probable Maximum Flood (PMF). The spillways will pass 10 percent of the PMF without overtopping the dam. Therefore the spillway is adjudged as inadequate but not seriously inadequate. The visual inspection revealed no problems or remedial measures in need of immediate attention. There is no regular maintenance operation program or warning system, and it is recommended that a maintenance program and a warning system be established. The maintenance items listed should be accomplished as a part of the regular maintenance program within the next 12 months.
Author: Paul Seiler Publisher: ISBN: Category : Languages : en Pages : 100
Book Description
Pursuant to Public Law 92-367, Phase I Inspection Reports are prepared under guidance contained in the recommended guidelines for safety inspection of dams, published by the Office of Chief of Engineers, Washington, D.C. 20314. The purpose of a Phase I investigation is to identify expeditiously those dams which may pose hazards to human life or property. The assessment of the general conditions of the dam is based upon available data and visual inspections. Detailed investigation and analyses involving topographic mapping, subsurface investigations, testing, and detailed computational evaluations are beyond the scope of a Phase I investigation; however, the investigation is intended to identify any need for such studies. Based upon the field conditions at the time of the field inspection and all available engineering data, the Phase I report addresses the hydraulic, hydrologic, geologic, geotechnic, and structural aspects of the dam. The engineering techniques employed give a reasonably accurate assessment of the conditions of the dam. It should be realized that certain engineering aspects cannot be fully analyzed during a Phase I inspection. Assessment and remedial measures in the report include the requirements of additional indepth study when necessary.
Author: Paul Seiler Publisher: ISBN: Category : Languages : en Pages : 62
Book Description
Pursuant to Public Law 92-367, Phase I Inspection Reports are prepared under guidance contained in the recommended guidelines for safety inspection of dams, published by the Office of Chief of Engineers, Washington, D.C. 20314. The purpose of a Phase I investigation is to identify expeditiously those dams which may pose hazards to human life or property. The assessment of the general conditions of the dam is based upon available data and visual inspections. Detailed investigation and analyses involving topographic mapping, subsurface investigations, testing, and detailed computational evaluations are beyond the scope of a Phase I investigation; however, the investigation is intended to identify any need for such studies. Based upon the field conditions at the time of the field inspection and all available engineering data, the Phase I report addresses the hydraulic, hydrologic, geologic, geotechnic, and structural aspects of the dam. The engineering techniques employed give a reasonably accurate assessment of the conditions of the dam. It should be realized that certain engineering aspects cannot be fully analyzed during a Phase I inspection. Assessment and remedial measures in the report include the requirements of additional indepth study when necessary.
Author: Paul Seiler Publisher: ISBN: Category : Languages : en Pages : 109
Book Description
Pursuant to Public Law 92-367, Phase I Inspection Reports are prepared under guidance contained in the recommended guidelines for safety inspection of dams, published by the Office of Chief of Engineers, Washington, D.C. 20314. The purpose of a Phase I investigation is to identify expeditiously those dams which may pose hazards to human life or property. The assessment of the general conditions of the dam is based upon available data and visual inspections. Detailed investigation and analyses involving topographic mapping, subsurface investigations, testing, and detailed computational evaluations are beyond the scope of a Phase I investigation; however, the investigation is intended to identify any need for such studies. Based upon the field conditions at the time of the field inspection and all available engineering data, the Phase I report addresses the hydraulic, hydrologic, geologic, geotechnic, and structural aspects of the dam. The engineering techniques employed give a reasonably accurate assessment of the conditions of the dam. It should be realized that certain engineering aspects cannot be fully analyzed during a Phase I inspection. Assessment and remedial measures in the report include the requirements of additional indepth study when necessary.
Author: James A. Walsh Publisher: ISBN: Category : Languages : en Pages : 68
Book Description
Little Creek Reservoir Dam is an earthfill embankment 67.0 feet high and approximately 1,900 feet long. The dam has a drop-inlet spillway consisting of a 13 foot by 18 foot concrete riser with a 6 foot diameter concrete outlet pipe. The dam, located near Toano, Virginia, is used for water supply by the City of Newport News, Virginia. The dam is owned by the City of Newport News, Virginia. Little Creek Reservoir Dam is an 'intermediate' size - 'significant' hazard structure as defined by the Recommended Guidelines for Safety Inspections of Dams. The dam and appurtenant structures were found to be generally in good overall condition. Visual inspection and office analyses indicate deficiencies requiring remedial treatment. A stability check is not required. Using the Corps of Engineers' screening criteria for initial review of spillway adequacy, the Probable Maximum Flood (PMF) was selected as the spillway design flood (SDF) for Little Creek Reservoir Dam. The spillway is capable of passing up to 88 percent of the PMF without overtopping the dam. Despite the inability of the spillway to pass the SDF, the depth, duration, and rate of overtopping flows are not considered detrimental to the embankment.
Author: MARTIN (DEWARD M) AND ASSOCIATES INC WILLIAMSBURG VA. Publisher: ISBN: Category : Languages : en Pages : 46
Book Description
Pursuant to Public Law 92-367, Phase I Inspection Reports are prepared under guidance contained in the recommended guidelines for safety inspection of dams, published by the Office of Chief of Engineers, Washington, D.C. 20314. The purpose of a Phase I investigation is to identify expeditiously those dams which may pose hazards to human life or property. The assessment of the general conditions of the dam is based upon available data and visual inspections. Detailed investigation and analyses involving topographic mapping, subsurface investigations, testing, and detailed computational evaluations are beyond the scope of a Phase I investigation; however, the investigation is intended to identify any need for such studies. Based upon the field conditions at the time of the field inspection and all available engineering data, the Phase I report addresses the hydraulic, hydrologic, geologic, geotechnic, and structural aspects of the dam. The engineering techniques employed give a reasonably accurate assessment of the conditions of the dam. It should be realized that certain engineering aspects cannot be fully analyzed during a Phase I inspection. Assessment and remedial measures in the report include the requirements of additional indepth study when necessary.
Author: James A. Walsh Publisher: ISBN: Category : Languages : en Pages : 63
Book Description
Salisbury Lake Dam is an earthfill embankment with a compacted clay core, approximately 1020 feet long and 37.3 feet high. The Dam is situated on Falling Creek, approximately 1.0 miles north of Midlothian, Virginia, and is used for recreational purposes by the owner, the Salisbury Lake Property Owners Association. Salisbury Lake Dam is a 'small' size - 'high' hazard structure as defined by the Recommended Guidelines for Safety Inspection of Dams. Deficiencies found during the field inspection and office analyses will require remedial treatment. A stability check is not required. Using the Corps of Engineers' screening criteria for initial review of spillway adequacy, the PMF was selected as the SDF for the 'small' size - 'high' hazard classification of Salisbury Lake Dam. The dam would be overtopped by the SDF, and the depth, duration, and rate of overtopping flows are considered detrimental to the embankment. The spillways are capable of passing only 30 percent of the PMF. The spillway is adjudged as seriously inadequate, since dam failure from overtopping would significantly increase the hazard to loss of life downstream from the dam over that which would exist just before overtopping failure.
Author: James A. Walsh
Author: James A. Walsh
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Author: Paul Seiler
Author: Paul Seiler
Author: 
Author: Paul Seiler
Author: James A. Walsh
Author: MARTIN (DEWARD M) AND ASSOCIATES INC WILLIAMSBURG VA.
Author: James A. Walsh