National Dam Safety Program. Nelson Dam (Inventory Number VA 12501), James River Basin, Nelson County, Virginia. Phase I Inspection Report.
ARMY ENGINEER DISTRICT NORFOLK VA
Pagination or Media Count:
The Dam is an earthfill structure about 738 feet long and 40.5 feet high. The dam is classified as intermediate on the basis of size, and given a hazard classification of significant on the basis of downstream area development. The principal spillway consists of an octagonally shaped concrete riser with eight rectangular openings serving as drop inlets. The emergency spillway is an open concrete channel cut at the right abutment. The spillway will pass 41 percent of the PMF or 82 percent of the SDF without overtopping the crest of the dam. The spillway is adjudged inadequate but not seriously inadequate. The visual inspection revealed no apparent problems and there are no immediate needs for remedial measures.
- Hydrology, Limnology and Potamology
- Civil Engineering