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National Dam Safety Program. Ni River Dam (Inventory Number VA 17701). Rappahannock River Basin. Spotsylvania County, Commonwealth of Virginia. Phase I Inspection Report
Ni River Dam, also referred to by the Soil Conservation Service (SCS) as the Ni River Watershed Project, Multiple Purpose Dam No. 1, is a zoned earthfill embankment approximately 50.9 feet high and 1440 feet long. 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 spillway is capable of passing up to 100 percent of the SDF or 80 percent of the Probable Maximum Flood (PMF) without overtopping the dam. The spillway is adjudged as adequate. The marshy area below the toe should be examined at regular intervals and after periods of heavy rainfall for flow or turbidity. If flow or turbidity are noted, a qualified geotechnical firm should be retained to further evaluate the condition.
National Dam Safety Program. Ni River Dam (Inventory Number VA 17701). Rappahannock River Basin. Spotsylvania County, Commonwealth of Virginia. Phase I Inspection Report
Ni River Dam, also referred to by the Soil Conservation Service (SCS) as the Ni River Watershed Project, Multiple Purpose Dam No. 1, is a zoned earthfill embankment approximately 50.9 feet high and 1440 feet long. 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 spillway is capable of passing up to 100 percent of the SDF or 80 percent of the Probable Maximum Flood (PMF) without overtopping the dam. The spillway is adjudged as adequate. The marshy area below the toe should be examined at regular intervals and after periods of heavy rainfall for flow or turbidity. If flow or turbidity are noted, a qualified geotechnical firm should be retained to further evaluate the condition.
National Dam Safety Program. Ni River Dam (Inventory Number VA 17701). Rappahannock River Basin. Spotsylvania County, Commonwealth of Virginia. Phase I Inspection Report
C. S. Anderson (author)
1981
95 pages
Report
No indication
English