Author : Nathan Wilcoxon
Release : 1981
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National Dam Safety Program. Spring Lake Dam (MO 31180), Mississippi - Kaskaskia - St. Louis River Basin, Cape Girardeau County, Missouri. Phase I Inspection Report - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook National Dam Safety Program. Spring Lake Dam (MO 31180), Mississippi - Kaskaskia - St. Louis River Basin, Cape Girardeau County, Missouri. Phase I Inspection Report write by Nathan Wilcoxon. This book was released on 1981. National Dam Safety Program. Spring Lake Dam (MO 31180), Mississippi - Kaskaskia - St. Louis River Basin, Cape Girardeau County, Missouri. Phase I Inspection Report available in PDF, EPUB and Kindle. Spring Lake Dam is an earthfill structure approximately 21 feet high and 400 feet long at the crest. The appurtenant works consist of a drop-inlet pipe principal spillway and a trapezoidal channel cut into natural ground at the left abutment which acts as an emergency spillway. Our inspection and evaluation indicates that the spillway has not met the criteria set forth in the guidelines for a small size dam in the high hazard potential category. This structure has the capability to hold and pass approximately 40 percent of the Probable Maximum Flood (PMF) before overtopping. The dam appeared to be in fair condition. Deficiencies visually observed by the inspection team were: (1) a row of trees (approximately 8) along the upstream face of the dam; (2) a significant potential for restriction to flow into the principal spillway intake; (3) some minor erosion on the downstream face of the dam; (4) the emergency spillway channel is partially obstructed by six steel drums and a fence; and (5) minor seepage into the principal spillway conduit from within the embankment.