This report was prepared under the National Program of Inspection of Non-Federal Dams. This report assesses the general condition of the dam with respect to safety, based on available data and on visual inspection, to determine if the dam poses hazards to human life or property. (Author).

This report presents the results of field inspection and evaluation of the Hilliard Estates Lake Dam (MO No. 20473). It was prepared under the National Program of Inspection of Non-Federal Dams. This dam has been classified as unsafe, non-emergency by the St. Louis District as a result of the application of the following criteria: The combined spillway capacity will not pass 50 percent of the Probable Maximum Flood without overtopping the dam. Overtopping of the dam could result in failure of the dam. Dam failure significantly increases the hazard to loss of life downstream.

McDaniel Lake Dam is located approximately 3 miles north of the intersection of Interstate 44 and State Highway 13 near Springfield, Greene County, Missouri on the Little Sack River. McDaniel Lake Dam is used for water supply. Visual inspection revealed that the dam, spillway and outlet works are in good condition. The concrete appears to be in good condition with the exception of hairline cracks and deterioration at the construction joints. The trees and sedimentation should be removed from upstream of the emergency spillway. The trees located in the emergency spillway discharge channel should be removed. The presence of the flashboards in the emergency spillway is questionable. The fact that the reservoir drain line has never been opened indicates that it may not be operable in an emergency. Complete evaluation of the structure cannot be made without a detailed stability, seepage and stress analysis with test results of the concrete.

Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.

This report was prepared under the National Program of Inspection of Non-Federal Dams. This report assesses the general condition of the dam with respect to safety, based on available data and on visual inspection, to determine if the dam poses hazards to human life or property. (AUTHOR).