Laserfiche WebLink
PLANS, SPECIFICATIONS AND ESTIMATE REVIEW <br />Project Title: <br />75th — Seaway Transit Center 90% Review <br />Job Charge: <br />Reviewed By: <br />Office & Mail Stop: <br />Phone: <br />Date: <br />Sheet <br />WO# <br />Erik Emerson <br />I Public Works <br />425-257-8995 <br />2-14-17 <br />1 <br /># <br />Sht/Pg <br />Reviewer's Comment <br />Designer's Response <br />Init. <br />Note that the 2010 stormwater manual the bypass was mandatory. <br />69 <br />DR2 <br />It is unclear what the cross section will be for the ditch on the southern side <br />A ditch cross section has been added to the <br />BJC <br />of the site. Provide a ditch section reference. <br />plans. Also, the grading plans show more <br />detail relating to this ditch. <br />70 <br />DD1 <br />Both riser structures shown are called out as 12" risers but the calculations <br />Risers have been changed to 18-inch in the <br />BJC <br />in the -drainage report are based on 18 inch risers. Please revise to 18" risers <br />plans. <br />or provide revised calculations. <br />71 <br />DD2 <br />The detention tank must be designed in accordance with Standard Plan 418 <br />The detention tank design has been <br />BJC <br />of the new DCSS. Notably, connector pipes must be a minimum of 48" <br />updated to comply with the revised standard <br />diameter and must be set at the same invert as the invert of the detention <br />plan. <br />tank. <br />72 <br />DD6 <br />A shrub or tree must be planted in the Filterra Unit. The plant shall be <br />A low growing shrub has been added to the <br />BJC <br />selected from the manufacturer's approved list of plants for the Pacific <br />plans. <br />Northwest and shall be a size and type appropriate to the Filterra location. <br />The plant shall meet clear zone and visibility requirements as appropriate. <br />73 <br />DD6 <br />The rain garden shown is not required to meet MR 6 or 7 unless the building <br />Yes, the rain garden is a voluntary measure <br />BJC <br />roof is made from a pollution generating material. Since no calculations were <br />and is provided mainly for aesthetics. <br />provided the rain garden was assumed to be a voluntary measure. As such it <br />However we did add 6 more inches of depth <br />was not reviewed to determine compliance with stormwater standards and <br />to the gravel zone below to promote <br />will not be tracked as a water quality facility by the City. Consider expanding <br />infiltration. <br />the gravel backfill under more of the rain garden to promote infiltration. <br />90% Seaway Review Comments.docxx <br />