National Dam Safety Program. Fleming Dam (Inventory Number VA 04904), James River Basin, Cumberland County, Commonwealth of Virginia. Phase I Inspection Report PDF Download
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Author: James A. Walsh Publisher: ISBN: Category : Languages : en Pages : 53
Book Description
Fleming Dam is an earthfill embankment 29.4 feet high and approximately 423 feet long. The principal spillway consists of a 36 inch diameter corrugated metal pipe (CMP) riser connected to a 24 inch diameter CMP outlet. The emergency spillway is a 50 foot wide vegetated earth channel adjacent to the right abutment. The dam, located on Maxey Mill Creek approximately 3.7 miles northeast of Cumberland, Virginia, is used for recreation and as a stock pond. The dam is owned by Mr. John T. Clayton of Cumberland, Virginia. Fleming Dam is a 'small' size - 'significant' hazard structure as defined by the Recommended Guidelines for Safety Inspection of Dams. Visual inspection and office analyses indicate deficiencies requiring further investigation and remedial treatment. A stability check is not required. Using the Corps of Engineers' screening criteria for initial review of spillway adequacy, the 100-year flood was selected as the spillway design flood (SDF). The spillway is capable of passing up to 45 percent of the SDF or 8 percent of the PMF without overtopping the dam. Overtopping flows during the SDF are not considered detrimental to the embankment. The spillway is adjudged as inadequate. The spillway is not adjudged as seriously inadequate since dam failure from overtopping would not 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 Publisher: ISBN: Category : Languages : en Pages : 53
Book Description
Fleming Dam is an earthfill embankment 29.4 feet high and approximately 423 feet long. The principal spillway consists of a 36 inch diameter corrugated metal pipe (CMP) riser connected to a 24 inch diameter CMP outlet. The emergency spillway is a 50 foot wide vegetated earth channel adjacent to the right abutment. The dam, located on Maxey Mill Creek approximately 3.7 miles northeast of Cumberland, Virginia, is used for recreation and as a stock pond. The dam is owned by Mr. John T. Clayton of Cumberland, Virginia. Fleming Dam is a 'small' size - 'significant' hazard structure as defined by the Recommended Guidelines for Safety Inspection of Dams. Visual inspection and office analyses indicate deficiencies requiring further investigation and remedial treatment. A stability check is not required. Using the Corps of Engineers' screening criteria for initial review of spillway adequacy, the 100-year flood was selected as the spillway design flood (SDF). The spillway is capable of passing up to 45 percent of the SDF or 8 percent of the PMF without overtopping the dam. Overtopping flows during the SDF are not considered detrimental to the embankment. The spillway is adjudged as inadequate. The spillway is not adjudged as seriously inadequate since dam failure from overtopping would not 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 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: James A. Walsh Publisher: ISBN: Category : Languages : en Pages : 70
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 : 49
Book Description
Sunken Meadow Dam is an earthfill embankment approximately 9.1 feet high and 930 feet long. The spillway consists of a 27 foot long broad-crested weir, a concrete well, and a triple 4 foot by 5 foot reinforced concrete box culvert under the embankment, adjacent to the left abutment. The dam is located approximately 1.7 miles east of Claremont, Virginia. The dam itself is owned by the Virginia Department of Highways and Transportation. The reservoir is owned by Mrs. Mable K. Costenbader, and is used for recreation. Sunken Meadow Dam is an 'intermediate' size - 'high' hazard structure as defined by the recommended Guidelines for Safety Inspection of Dams.
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: James A. Walsh Publisher: ISBN: Category : Languages : en Pages : 51
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 : 47
Book Description
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. Phase I reports include project information, all existing engineering data, operational procedures, hydraulic/hydrologic data of the watershed, dam stability, visual inspection report and an assessment including required remedial measures.
Author: James A. Walsh
Author: James A. Walsh
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Author: James A. Walsh
Author: James A. Walsh
Author: James A. Walsh
Author: Paul Seiler
Author: James A. Walsh
Author: James A. Walsh