Agenda - Council - 12/22/1981 - Laserfiche WebLink

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I I I '1 I I I ,I I I I I I I I I I I ~i~ /~.~ KA NSON /tSSO CI/I TES engineers and surveyors P.O. Box 665 2665 Fourth Avenue North Anoka, Minnesota 55303 612/427-5860 January 15, 1979 Mr. J. Stephen Schmidt 301 Jackson Street Anoka, Minnesota 55303 Re: Soil Borings at Weiss Property File: 521.01 Dear Mr. Schmidt: At your request, additional soil borings were made at the Weiss property south- west of the intersection of 167th Avenue N. W. and State Highway No. 47, Ramsey, Minnesota. The purpose of the work was to supplement the soils report submitted earlier to Mr. Paul Weiss. With the permission of Mr. Weiss, enclosed is a copy of that report dated November 10, 1977. Four new testholes were made numbered 101 through 104. Logs of these testholes are attached. The new testholes verify the pattern of 4 to 5 feet of fine sand material over silty clay. At most testholes, ground water was found perched in the sand above the clay. An exception was Testhole No. 101 where water was first encountered in a sand layer located below 7 feet of the clay. Mottled soil coloration in the sand materials above the clay indicate that seasonal high ground water can be within 3 to 3 1/2 feet of the surface. At some of the testholes the upper surface of the clay was found to be tan or brown, indicating that during some dry seasons the extent of the perched water is reduced. Based upon standard penetration testing, the sand materials above the clay are predicted to have an allowable soil bearing capacity of 1,500 pounds per square foot. The clay soils are capable of about 2,000 pounds per square foot soil bearing capacity or greater depending upon depth. The site appears, therefore, to be suitable for construction of slab on grade type of structures. Until the area can be drained by storm sewer improvements, we do not advise construction of basements because of the ground water. civil · municipal · planning · soils , land surveying