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Kirk Brooks <br /> From: Erik Emerson <br /> Sent: Monday,July 24, 2017 7:34 PM <br /> To: Kirk Brooks <br /> Subject: Swift Bus Stations - Second Review Comments <br /> Kirk, <br /> I have reviewed the Community Transit SWIFT Station Construction plans.They appear to have addressed Jane's <br /> previous comments by clarifying what elements were to remain/removed and adding additional detail. However,the <br /> changes bring up the following comments: <br /> 1. General Comment-There are a number of references to EDDS standard plans.While this is acceptable <br /> considering the nature of the project the construction must still meet City of Everett standards where they differ <br /> from the County's requirements. <br /> 2. Sheet C4.30—GIS records indicate that there is a Sanitary Sewer main near the curb line which is not shown in <br /> the plan. Please show the sewer main and ensure that the proposed catch basin upsizing will not impact the <br /> sewer or manholes. See 1998 Snohomish County Asbuilt(attached). <br /> 3. Sheet C4.30—Clarify the intent for the new CB642. Presumably the replacement is to allow a grate in the <br /> relocated gutter line without re-plumbing the storm drain line. <br /> 4. Sheet C4.31—A 6" canopy drain is graphically shown connecting to the same side of a Type 1 CB as an existing <br /> 12 pipe,which I un-constructible.The canopy drain line should connect from the curb side of the CB,with <br /> appropriate fittings in the line. <br /> 5. Sheet C4.33—The proposed replacement detention system must comply with City of Everett Standard Drawing <br /> 418,which differs slightly from the EDDS equivalent. Most notably: <br /> • Connecting pipes between the end structures and the tank must be a minimum of 48" dia.Since the <br /> tank is 48" in diameter no reduced diameter connections will be allowed. <br /> • Steel pipe is not permitted within the City. I'm not familiar with the acronym SRSSP. Ensure that the pipe <br /> material is allowed per the City Design and Construction Standards and Specifications. <br /> 6. Sheet C4.35—The control structure for CB 682 must comply with City of Everett Standard Drawings 415 and 416. <br /> Most notably <br /> • The 8" sheer gate should be a lift gate per Detail "C" of Standard Drawing 416. <br /> • Provide 24" minimum clearance from the steps to all appurtenances. <br /> • 6" separation must be provided between the top of riser and the bottom of the CB lid. Based on the rim <br /> elevation it looks like it will be close. <br /> Erik Emerson PE <br /> City of Everett, Public Works <br /> Senior Surface Water Engineer <br /> 3200 Cedar Street <br /> Everett, WA 98201 <br /> Direct: 425-257-8995, Fax: (425)257-8882 <br /> eemerson@everettwa.gov <br /> 1 <br />