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National Dam Safety Program. Lake Heritage Dam (Inventory Number VA 03332), York River Basin, Caroline County, Commonwealth of Virginia. Phase I Inspection Report
Lake Heritage Dam is an earthfill embankment approximately 19.8 feet high and 1,310 feet long with a 29.9 foot wide by 4 foot high concrete weir spillway situated about 40 feet from the right abutment of the dam. The dam, located about 2.5 miles west of Ladysmith, Virginia, is used for recreation. The dam is owned by the Lake Land' or Property Owner's Association, Box 123, Ladysmith, Virginia 22501. Lake Heritage Dam is a 'small' size - 'high' hazard structure as defined by the Recommended Guidelines for Safety Inspection of Dams. The dam and appurtenant structures were in fair overall condition at the time of inspection. Maintenance of the dam is considered to be inadequate. A stability check of the dam is not required. Using the Corps of Engineers' screening criteria for initial review of spillway adequacy, the 1/2 Probable Maximum Flood (1/2 PMF) was selected as the spillway design flood (SDF). The SDF was routed through the reservoir and found to overtop the dam by a maximum depth of 0.7 feet with an average critical velocity of 3.8 feet per second. Total duration of overtopping would be approximately 1.9 hours.
National Dam Safety Program. Lake Heritage Dam (Inventory Number VA 03332), York River Basin, Caroline County, Commonwealth of Virginia. Phase I Inspection Report
Lake Heritage Dam is an earthfill embankment approximately 19.8 feet high and 1,310 feet long with a 29.9 foot wide by 4 foot high concrete weir spillway situated about 40 feet from the right abutment of the dam. The dam, located about 2.5 miles west of Ladysmith, Virginia, is used for recreation. The dam is owned by the Lake Land' or Property Owner's Association, Box 123, Ladysmith, Virginia 22501. Lake Heritage Dam is a 'small' size - 'high' hazard structure as defined by the Recommended Guidelines for Safety Inspection of Dams. The dam and appurtenant structures were in fair overall condition at the time of inspection. Maintenance of the dam is considered to be inadequate. A stability check of the dam is not required. Using the Corps of Engineers' screening criteria for initial review of spillway adequacy, the 1/2 Probable Maximum Flood (1/2 PMF) was selected as the spillway design flood (SDF). The SDF was routed through the reservoir and found to overtop the dam by a maximum depth of 0.7 feet with an average critical velocity of 3.8 feet per second. Total duration of overtopping would be approximately 1.9 hours.
National Dam Safety Program. Lake Heritage Dam (Inventory Number VA 03332), York River Basin, Caroline County, Commonwealth of Virginia. Phase I Inspection Report
J. A. Walsh (author)
1981
59 pages
Report
No indication
English