1605 SE EVERETT MALL WAY 2018-01-01 MF Import

BACKGROUND This project involves the movement of approximately 75, 000 cubic yards of onsite materiai to "level off" a 26± acre parcel of land being developed as a small shopping plaza. No offsite material is anticipated to be required. The extremes ar•e a 10'± cut near the northeast corner of the property and a 72'+ fill near the center of the western property line. Rough sub- grade elevations and the earth quantities were provided by James Bakke, Construction Consultant to the property owners, Harmon E Associates of Seattle. A construction sequence is listed on sheet 3 of the Plans. This sequence of events is I��tended to provide a sedimentation pond approximately 3' deep (maximum) at the southwest co"rner of the site. At the outset of construction this pond is formed by a small perimeter dike which is con- structed along the western property line, collecting surface runoff to a maximum elevation of 502.00 as set by the control structure overflow. The southern barrier of this pond is the natural slope from the property up to Everett Mall Waj� (approximately 10 vertical feet). As filling operations proceed the northern and eastern slopes of the pond will be fomed as each lift is added (see sections A-A and 3-B on sheet three of the plans) . Once the site has been graded to the elevations shown on sheets one and two of the plans the pond will be filled and compacted in lifts and a berm will be constructed atop the pad along a portion of the western and southern edges (see detail 'A' on sheet three of the plans) . Other erosion control and conveyance measures are utilized in the overall scope of the project - ditches, straw bales, rock 'check dams, etc. It will also be the responsibility of the contractor to implement any additional � measures necessary for erosion and sedimentation control. Weather conditions during the construction �hase of the project will generally dictate to what extreme these control measures will be required. 1