Accession Number:

ADA106323

Title:

National Dam Safety Program. McGhee Dam (Inventory Number VA 10706), Potomac River Basin, Loudoun County, Virginia. Phase I Inspection Report.

Descriptive Note:

Final rept.,

Corporate Author:

ARMY ENGINEER DISTRICT NORFOLK VA

Personal Author(s):

• Taran,Boris O.
• Anderson,Carl S. , Jr.
• Starr,Jack G.

Report Date:

1981-04-01

Pagination or Media Count:

42.0

Abstract:

Based on criteria established by the Department of the Army, Office of the Chief of Engineers OCE, the Spillway Design Flood SDF is the 100-Year Flood. The spillway will pass 20 percent of the PMF or 100 percent of the SDF without overtopping the crest of the dam. The spillways are adjudged as adequate. The visual inspection revealed no apparent problems and there are no immediate needs for remedial measures. However, the upstream slope and crest width are inadequate and there is no design data or construction history. Maintenance is performed by the owner, but there is no regular maintenance operations program or warning system. It is recommended that the services of a qualified geotechnical engineering firm be engaged to perform a stability check of the dam. This should be completed within 12 months. It is also recommended that a regular maintenance and operations program be instituted with provisions for accurate records of all maintenance performed, and that a warning system be established. The maintenance items listed in Section 7.2 be accomplished as part of the regular maintenance program within the next 12 months.

Descriptors:

• *EARTH DAMS
• STABILITY
• VIRGINIA
• HYDROLOGY
• DEFICIENCIES
• SAFETY
• VISUAL INSPECTION
• FLOODING
• RESERVOIRS

Subject Categories:

• Hydrology, Limnology and Potamology
• Civil Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE