5202 HILLTOP RD 2016-01-01 MF Import

n DAVID L.NELSON AND ASSOCIATES,INC. Consulting Engineering Geology February 18, 1986 Project No. 1886 Page Four Additional Notes Isolated vertical members,such as the pier type footing alternative, may —' experience considerable movement should the fill soils activate and slide. ' We would antir.ipate lateral earth pressures of 1000 pounds per cubic foot (pcf) r. for these type foundations. For near surface footings, we would expect an �� anticipated equivalent fluid pressure of 40 pcf for active pressures, and � 55 pcf for at-rest pressures. These anticipated lateral earth pressures are u based upon a drained condition. '. We would suggest the foundations be drain as shown on the enclosed Subdrain ,, & Backfill Scheme, Roof drains should be independantly collected and routed � to an outfall area away from the building area. We suggest all drainage ,� collec�ed within the site be tightlined to the swale area, and not deposited or freely flow over the slope. .., Since we did not perform exploration within this site, the information con- tained herein should be viewed as opinions based upon observations. Should conditions other than those discussed with you or known by us be found to occur, we should be contacted for further review and study. Additional or -- alternative recommendations may be required. Thank you for the opportunity to be of service. If you have any questions, feel free to call on us at any time. � Sincerel _- DAYID . � CIATES, INC. David L. Nelson, PG __ Professional Engineering Geologist DLN:kmn /� � J. Keith Cross, PE Geotechnical Consultant