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National Dam Safety Program. Claymont Woods Lake Dam (MO 10489), Mississippi - Kaskaskia - St. Louis Basin, St. Louis County, Missouri. Phase I Inspection Report
Based on a visual inspection, the present general condition of the dam and spillway is considered to be satisfactory. The following deficiencies were noticed during the inspection and are considered to have an adverse effect on the overall safety and future operation of the dam and spillway: Minor erosion of the side slopes of the dam and embankment section on the right side (looking downstream) of the principal spillway, as well as some minor surface cracking, was noticed. The riprap in the outlet channel immediately downstream from the principal spillway, for a distance of approximately 10 feet, was displaced apparently due to the scouring effect of spillway discharge. Continuing erosion at this location could undermine the spillway. An abundance of small willow trees and other vegetation were observed growing in the spillway outlet channel. Obstructions in the outlet channel could affect its capacity to pass spillway discharge at the rate required to prevent flooding of the area adjacent to the downstream toe of the dam. Numerous trees and brush exist on the dam backslope at and in the drainage ditch paralleling the dam. This growth will restrict ditch flow that may result in flooding of the area adjacent to the dam.
National Dam Safety Program. Claymont Woods Lake Dam (MO 10489), Mississippi - Kaskaskia - St. Louis Basin, St. Louis County, Missouri. Phase I Inspection Report
Based on a visual inspection, the present general condition of the dam and spillway is considered to be satisfactory. The following deficiencies were noticed during the inspection and are considered to have an adverse effect on the overall safety and future operation of the dam and spillway: Minor erosion of the side slopes of the dam and embankment section on the right side (looking downstream) of the principal spillway, as well as some minor surface cracking, was noticed. The riprap in the outlet channel immediately downstream from the principal spillway, for a distance of approximately 10 feet, was displaced apparently due to the scouring effect of spillway discharge. Continuing erosion at this location could undermine the spillway. An abundance of small willow trees and other vegetation were observed growing in the spillway outlet channel. Obstructions in the outlet channel could affect its capacity to pass spillway discharge at the rate required to prevent flooding of the area adjacent to the downstream toe of the dam. Numerous trees and brush exist on the dam backslope at and in the drainage ditch paralleling the dam. This growth will restrict ditch flow that may result in flooding of the area adjacent to the dam.
National Dam Safety Program. Claymont Woods Lake Dam (MO 10489), Mississippi - Kaskaskia - St. Louis Basin, St. Louis County, Missouri. Phase I Inspection Report
1978
76 pages
Report
Keine Angabe
Englisch