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Cc:Jack Molver<Jnm@deainc.com>;Sabrina Fandler<SFandler@everettwa.gov> <br /> Subject: RE: Revision to FedEx storm drain plan <br /> Hi Brett, <br /> I do like the idea and I think we can accept this in principal. However, I do have a couple <br /> comments/concerns/clarifications: <br /> 1. The pipe anchor material submittal you provided only provides part of the story.The socket clamp seems <br /> reasonable,although you'll want to make sure that it is oversized to allow the pipe to slide through it when it <br /> moves due to temperature changes. However,there is no indication in the info you submitted about how the <br /> clamp will be anchored. It should be easy enough to do (T-posts?), but the whole mechanism should be <br /> identified in the documents.We'll want to include a detail in the plans(at least the as-builts) in case someone in <br /> the future has to replace/repair them.Also,will this clamp work with the two parallel pipes? <br /> 2. DCSS Section 4-2.5 has minimum requirements for outfall designs based on velocity(the same table is in the <br /> Ecology manual).Without doing the calcs I don't know what the discharge velocity will be, but I anticipate that it <br /> will be in the 20+fps category. (Theoretically it could be as high as 50 fps based on 40 feet of elevation <br /> difference.)As such I think we'll need something from you declaring(with stamp)that you "engineered"this <br /> outfall.Since this is low risk condition I'll leave it up to you what form that will take. <br /> Feel free to give me a call if you want to discuss either of these.You'll have to coordinate with Sabrina as far as the <br /> requirements for submitting revised drawings. Unfortunately she's in training all week, but she is checking and <br /> responding to emails intermittently. <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 /> From: Brett Nicholson [mailto:Bjn(adeainc.com] <br /> Sent: Friday, October 06, 2017 4:57 PM <br /> To: Erik Emerson <br /> Cc: Jack Molver; Sabrina Fandler <br /> Subject: RE: Revision to FedEx storm drain plan <br /> Eric, <br /> Please find attached the revised revision plans per our conversation this morning. I created a profile view of the pipes on <br /> the slope for additional information. <br /> I have also attached the proposed pipe anchor submittal. <br /> Please let us know if you have any questions. <br /> Have a good weekend, <br /> Brett Nicholson, PE <br />