9600 SHARON DR EXPLORER MIDDLE SCHOOL 2016-05-27

engineering pi c MUKILTEO SCHOOL DISTRICT TEACHING AND LEARNING CENTER STORMWATER SITE PLAN JULY 22,2014;REVISED AUGUST 25,2014 I. PROJECT DESCRIPTION This Stormwater Site Plan is for the renovation of and addition to an existing building,House 1,on the Explorer Middle School campus located in the City of Everett. House 1 will become the Teaching and Learning Center with the implementation of these improvements. The project site address is 9600 Sharon Drive, Everett, WA 98204. The proposed development is located on a single parcel(#28041300300200)which has an area of 29.1 acres.Refer to Figure 1 -Vicinity Map for the project location. The proposed project will include interior improvements to the existing building, and additions to the western corner and eastern side of the building.Also included in the project are parking and ' building access improvements, along with drainage,grading and utility improvements.The area where work is proposed primarily consists of existing impervious surface while the surrounding area has grass, landscaping and trees. The 2010 City of Everett Stormwater Management Manual was used for the development of this Stormwater Site Plan Report. II.SITE ASSESSMENT Existing Conditions The school property is currently developed and consists of the four buildings,three grass baseball fields,a grass football field with paved track,tennis courts, and paved play areas.Three asphalt parking lots are located near the north and east perimeter of the property. Improvements proposed in this project will be located exclusively in the vicinity of House 1,which is situated at the northwest corner of the property. The property is bounded by Walter Hall Golf Course to the west and single-family residences to the north, east and south.Access to Sharon Drive is provided via a two way entrance(94th Street SW)on the east side of the property,which transitions to a one way drop off loop(Christine Road)through the property before intersecting Sharon Drive again to the south. Additional site access from 11th Avenue W is provided at the northwest corner of the property near House 1 via Aradia Avenue. Asphalt play areas are adjacent to the building along the southwest and southeast sides of the building and include a covered play area to the west.A gravel road runs north/south along the western edge of the project.Concrete walkways connect the building entrances to the sidewalk along Aradia Avenue to the northeast and House 3 and 4 to the east. Parking and access facilities include a drop-off lane,travel lane and a parking area with 24 parking spaces.The majority of the LPD Engineering, PLLt Page I Mukilteo School District Teaching and Learning Center Stormwater Site Plan,July 22, 2014; Revised August 25, 2014