7301 HARDESON RD 2019-01-11 - Laserfiche WebLink

Sabrina Fandler From: Erik Emerson Sent: Thursday, October 12, 2017 5:14 PM To: Brett Nicholson; Sabrina Fandler Cc: Jack Molver Subject: RE: Revision to FedEx storm drain plan Follow Up Flag: Follow up Flag Status: Flagged Sabrina, The documents submitted in the email below address my concerns. I recommend approval of the revisions. Let me know if you need me to sign anything for the revision. —Erik From: Brett Nicholson [mailto:Bjn@deainc.com] Sent: Thursday, October 12, 2017 3:37 PM To: Erik Emerson; Sabrina Fandler Cc: Jack Molver Subject: RE: Revision to FedEx storm drain plan Erik and Sabrina, I have revised the redline plan to specify that the clamps be oversized to allow for expansion and contraction.The clamp posts will be 5' long steel corden rod, and is included as the last page in the product submittal. I have specified the type of clamp and rod on the redline plans, and can make sure that it gets copied to the as-builts for future maintenance purposes. Individual clamps will be used for each pipe, with adequate spacing between the pipes for the clamp rods to be inserted. The velocity of the outfall discharge is approximately 32 fps, so an engineered dissipator is required. I have included a stamped outfall protection design based on the U.S. Department of Transportation Hydraulic Design of Energy Dissipators for Culverts and Channels. I have attached revised redlines and a revised Memo for this request. Please let us know if it will be acceptable to proceed based on these plans. Thanks, Brett Nicholson, PE David Evans and Associates, Inc. 1620 W. Marine View Dr., Suite 200 I Everett, WA 98201 I www.deainc.com d: 425.405.1521 I c: 616.375.5705 ( cisco: 22121 I bjn@deainc.com From: Erik Emerson [mailto:EEmerson@everettwa.gov] Sent:Wednesday, October 11, 2017 11:17 AM To: Brett Nicholson<Bin@deainc.com>