Laserfiche WebLink
I n.*17•'H7 14:10 FAY 2082318782 BARGRAIISEN ENG 0001 <br />Una rNGT'OFn , LA N,A WNO, 6N1MtQRWVM aerNtt.SB <br />October 17, 1997 <br />Facsimile: (425) 257-8882 <br />Larry Crawford, Public Works Director <br />City of Everett <br />Public Works Department <br />3200 Cedar �itrem <br />Everett, WA 98201 <br />RE: Home Base <br />Our Job No. 5947 <br />Dear Larry: <br />As you requested, the following is a general sequence of critical construction items to maintain the existing <br />live storage volume Throughout construction of the above -referenced project. <br />f_ Reconstruct Family Tree detention pond and modify outlet structure to provide temporary <br />storage compensation. Exeavate side slopes at 211:1V on a temporary basis only. Permanent <br />side slopes will be constructed at 3H:IV. <br />2. Construct temporary storage pond and order structure at The south end of 1be site adjacrm to <br />100di Street to provide the remainder of temporary storage required during filling and grading <br />of the site. <br />3. Grade and fill the site as shown on rough grading and temporary erosion and sadimentation <br />control plans, inelueling permanent storm drainage outfall, groundwater recharge system, and <br />all erosion control amenities. Maintain temporary storage ponds ttroughout grade and fill <br />operations. <br />4. Obtain huMng permit for reeairsng wall in The Family Tree detention pond. Constructshe pond <br />per final &-sign plans utilizing modiNe(f control structure to increase the, live ntorage <br />compensation. <br />5. Construct roof drainage detention pipe as site fill reaches final pipe design grade. Use detention <br />pipe as temporary litre storage as the south retaining wall of the site is constructed. Expand on - <br />site erosion control pond to provide additional live storage for compensation. <br />6. Route Family Tree detention pond discharge Through temporary conveyance pipe to the <br />permanent storm drainage outWi at the west end of the site. Fill the Temporary pond at the <br />south end of due site rnd construct retaining waY_ Lave storage compwmfitl t is now provided <br />for by Family Tree detention pond. NTRItc detention .ynk, and tempruar)' erosion and <br />sedimentation control pond. <br />1a71572NDAVENUESOUTH XL-NT. WAP8032 (425)251-622.? (425)251-9792FAX <br />10/17/97 14:05 TX/RX N0.1468 P.001 <br />