1985 Soil Investigation Report - Laserfiche WebLink

Home Browse Search

<D- All soil samples obtained were brought to our laboratory for examination and classification. They will be retained for a period of at least 90 days from date of issue of this report, after which they will be discarded unless we are otherwise notified. Drawing No.l is a site plan showing the soil test hole loca tions in relation to the outline of the proposed building. Detailec soil descriptions together with a plot of the standard penetration test blows per foot are given on the Borehole Log, Drawing No.2. Following the regular written soil descriptions are capital letters in parentheses, which represent the appropriate group symbols of th« Unified Soil Classification System. A chart explaining this system is appended. All elevations in this report are to geodetic datum, and were obtained using the bench mark noted on the site plan. These eleva tions are approximate only. SITE AND GEOLOGY The site is located on a small peninsula extending into the North Arm of Lake Minnetonka, and is a lake shore lot. The propose building area is flat, and is only slightly higher than lake water level. This was formerly a swamp area, but was filled over to raisu it above lake level. An existing old wood cabin on this property, to be demolishe has sagged and settled. The underlying soils in this area, in order of their age fron youngest to oldest, are post-glacial organic swamp deposits, clayey and sandy, water modified glacial till related to the Des Moines ice lobe of the Wisconsin glaciation, and glacial outwash sand. According to information published by the State of Minnesota Geological Survey, the uppermost bedrock stratum under this area is believed to be Jordan sandstone or St. Lawrence dolomite, and probably occurs at considerable depth below ground surface. SUBTERRANEAN ENGINEERING CORP. MINNEAPOLIS. MINNESOTA