Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
National Dam Safety Program. Goose Creek Lake Dam (MO 30297), Mississippi - Kaskaskia - St. Louis Basin, St. Francois County, Missouri. Phase I Inspection Report
Goose Creek Lake Dam is an earth embankment impounding a lake for recreational purposes. The height of the dam at the maximum section is approximately 52 ft. The crest of the dam varies from 10 to 20 ft in width. The embankment was constructed of gravelly to bouldery silt and clay residual soil and is covered for the most part with grass and weed vegetation. A number of small trees are also growing on the downstream slope. There is no riprap or other erosion control measure on the upstream slope. The results of the visual inspection indicate the embankment is in fair to good condition. No evidence of cracking of the embankment was noted, although two areas which might be old slumps were identified on the downstream slope. No animal burrows or sinkholes were found. Motorcycle traffic has worn a path on the downstream slope and may contribute to accelerated erosion in this area. The horizontal alignment of the crest appears undeformed; settlement appears to have lowered the center of the dam crest 18 to 24 in. below the ends of the dam. Drainage from the right abutment flows in a channel along the junction of the embankment and right abutment. Erosion in this channel has steepened the toe of the slope and may have contributed to shallow slumping in this area. No erosion protection has been installed on the upstream slope, but as of the visual inspection, wave erosion was relatively minor. Hydraulic/hydrologic analyses indicate the dam will be overtopped by a flood which produces greater than 16 percent of the Probable Maximum Flood (PMF).
National Dam Safety Program. Goose Creek Lake Dam (MO 30297), Mississippi - Kaskaskia - St. Louis Basin, St. Francois County, Missouri. Phase I Inspection Report
Goose Creek Lake Dam is an earth embankment impounding a lake for recreational purposes. The height of the dam at the maximum section is approximately 52 ft. The crest of the dam varies from 10 to 20 ft in width. The embankment was constructed of gravelly to bouldery silt and clay residual soil and is covered for the most part with grass and weed vegetation. A number of small trees are also growing on the downstream slope. There is no riprap or other erosion control measure on the upstream slope. The results of the visual inspection indicate the embankment is in fair to good condition. No evidence of cracking of the embankment was noted, although two areas which might be old slumps were identified on the downstream slope. No animal burrows or sinkholes were found. Motorcycle traffic has worn a path on the downstream slope and may contribute to accelerated erosion in this area. The horizontal alignment of the crest appears undeformed; settlement appears to have lowered the center of the dam crest 18 to 24 in. below the ends of the dam. Drainage from the right abutment flows in a channel along the junction of the embankment and right abutment. Erosion in this channel has steepened the toe of the slope and may have contributed to shallow slumping in this area. No erosion protection has been installed on the upstream slope, but as of the visual inspection, wave erosion was relatively minor. Hydraulic/hydrologic analyses indicate the dam will be overtopped by a flood which produces greater than 16 percent of the Probable Maximum Flood (PMF).
National Dam Safety Program. Goose Creek Lake Dam (MO 30297), Mississippi - Kaskaskia - St. Louis Basin, St. Francois County, Missouri. Phase I Inspection Report
J. Y. Perez (Autor:in) / R. G. Berggreen (Autor:in)
1981
78 pages
Report
Keine Angabe
Englisch