11830 19TH AVE SE 2016-01-01 MF Import

Seahorse Restaurant W-5583 18 March 1988 Page 10 runoff should not discharge into the footing drain system. Instead, a separate . tight-lire drain network should be installed or splash blccks should be used to direct rainfall away from the completed building. Shoreline MalkMay We understand that a concrete walkway will be constructed around the perimeter of Silver Lake. This walkway will likely be provided in a25 foot easement from the mean shoreline of Silver Lake, which we understand is around elevation 547. � Considering the soils encountered in our test pit exploration, we feel that the proposed walkway can be founded directly on prerolled native ground or suitably compacted structural fill placed above dense native deposits. The w�lkway elevation should be set above mean lake elevation which we understand fluctuates depending upon season. We recommend that the sidewalk consist of a 3 to 4 inch, lightly reinforced concrete path, founded on a minimum of 4 inches of crushed rock or sand and gravel to serve as a drainage layer in the event that the sidewalk is inundated by the rising lake. Care should be taken to remove all soft, organic-rich surface , deposits beneath the sidewalk in order to minimize potential future differential settlements and sidewalk cracking. Preparation of the sidewalk subgrade should be done in accordance with the recommendations presented previously in this report under the section headings "Site Preparation" and "Structural Fill". CLOSURE The conclusions and recommendations presented in this report are based on the explorations accomplished for this stud;�. The number, locations and the depths of the explorations were completed with the site constraints so as to yield the ' information to formulate our recommendations. The integrity of the foundations depends on proper site preparation and construction procedure. We would be available to provide geotechnical engineering services during earthwork and foundation construction phases cf the project. If variations in the subsurface conditions are observed at that time, we would be available to provide additional geotechnical recommendations to minimize delays as the project develops.