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Home My WebLink About20160299_RE Site 62_20151217HI Matt, I agree, it would help maintain water quality if we can avoid DCIAs and utilize grass swales. Thanks for the detail. Dave W. Dave Wanucha Division of Water Resources Transportation Permitting Unit NC Department of Environmental Quality 336-776-9703 office 336-403-5655 mobile Dave.Wanucha@ncdenr.gov NC DEQ Winston Salem Regional Office 450 West Hanes Mill Road, Suite 300 Winston Salem, NC 27105 Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. From: Lauffer, Matthew S Sent: Wednesday, December 16, 2015 5:22 PM To: Wanucha, Dave <dave.wanucha@ncdenr.gov> Subject: RE: Site 62 Dave, They talked about moving the outlet to avoid acquisition of additional temporary drainage easement. By doing this, they would eliminate the grass swale. I would prefer not having any directly connected impervious area and maintain the grass swale. I would have brought it up sooner in the conversation, but did not realize it until we had moved on. That’s why I wanted to check with you first. If you are in favor of keeping it, I will let the Design Build Team know. Thanks for your willingness to work through this project today. Regards, Matt Matthew (Matt) Lauffer, PE, CPM Assistant State Hydraulics Engineer Hydraulics Unit Department of Transportation 919 707 6703 office 919 621 0443 mobile mslauffer@ncdot.gov <mailto:mslauffer@ncdot.gov> 1590 Mail Service Center Raleigh, NC 27699-1590 1020 Birch Ridge Dr. Raleigh, NC 27610 Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. Facebook <https://www.facebook.com/NCDOT1/> Twitter <http://ncdot.gov/travel/twitter/> YouTube <https://www.youtube.com/user/NCDOTcommunications> From: Wanucha, Dave Sent: Wednesday, December 16, 2015 12:49 PM To: Lauffer, Matthew S Subject: RE: Site 62 The plans are showing a standard grass swale at Site 62. Did I miss something in the banter? I’ll make note in the draft minutes when they are sent out. Dave w. Dave Wanucha Division of Water Resources Transportation Permitting Unit NC Department of Environmental Quality 336-776-9703 office 336-403-5655 mobile Dave.Wanucha@ncdenr.gov <mailto:Dave.Wanucha@ncdenr.gov> NC DEQ Winston Salem Regional Office 450 West Hanes Mill Road, Suite 300 Winston Salem, NC 27105 Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. From: Lauffer, Matthew S Sent: Wednesday, December 16, 2015 10:10 AM To: Wanucha, Dave <dave.wanucha@ncdenr.gov <mailto:dave.wanucha@ncdenr.gov> > Subject: RE: Site 62 Directly connected impervious area. Sorry about that. Sent from my Verizon Wireless 4G LTE smartphone -------- Original message -------- From: "Wanucha, Dave" <dave.wanucha@ncdenr.gov <mailto:dave.wanucha@ncdenr.gov> > Date: 12/16/2015 10:07 AM (GMT-05:00) To: "Lauffer, Matthew S" <mslauffer@ncdot.gov <mailto:mslauffer@ncdot.gov> > Subject: RE: Site 62 DCIA? Dave Wanucha Division of Water Resources Transportation Permitting Unit NC Department of Environmental Quality 336-776-9703 office 336-403-5655 mobile Dave.Wanucha@ncdenr.gov <mailto:Dave.Wanucha@ncdenr.gov> NC DEQ Winston Salem Regional Office 450 West Hanes Mill Road, Suite 300 Winston Salem, NC 27105 Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. From: Lauffer, Matthew S Sent: Wednesday, December 16, 2015 9:47 AM To: Wanucha, Dave <dave.wanucha@ncdenr.gov <mailto:dave.wanucha@ncdenr.gov> > Subject: Site 62 Dave do you want the grass swale on site 62 for treatment? We have DCIA from shoulder berm gutter if we don't keep the swale. Sent from my Verizon Wireless 4G LTE smartphone ________________________________ Email correspondence to and from this sender is subject to the N.C. Public Records Law and may be disclosed to third parties. gov <mailto:dave.wanucha@ncdenr.gov> >; Williams, Andrew E SAW <Andrew.E.Williams2@usace.army.mil <mailto:Andrew.E.Williams2@usace.army.mil> > Subject: R-2536 Burial of Pipes on Jurisdictional Features Importance: High Hi Travis, I wanted to follow-up with you regarding discussions yesterday during the 4C meeting for Section 2 and burial requirements. There has been discussions about burial and if it is necessary if aquatic passage is not viable due to length and slope and the possibility that material will not stay in the pipe or culvert due to the slope. While there is a need for additional quantification of this topic, the following are recommendations for R-2536 only based on existing guidelines and discussions to date. Please provide comments. Thanks for your response. Proposed: Pipes on JS streams do not need to be buried if either of the following are true: 1. If the pipe is greater than 250’ in length. 2. If the pipe is on greater than a 3% slope. Velocity in a 36” pipe on a 3% slope is about 10 fps at 0.5 feet of depth. Depth vs Velocity of a 36” pipe is shown below. The plans will say “Pipe not Buried” on the pipe where JS features enter a pipe with either of the above conditions. Pipes that are buried will have a sill incorporated into the headwall to provide stability for the upstream section. Culverts on JS streams do not need to be buried or backfilled if slope is greater than 4% If culverts greater than 4% are buried, then sills are required on both ends of the culvert. All other culverts will follow the Hydraulics Unit Guidelines on Sills and Baffles <https://connect.ncdot.gov/resources/hydro/Hydraulics%20Memos%20Guidelin es/01-06-2014%20Guidance%20for%20when%20to%20use%20Sills%20,Baffles%20in %20Box%20Culverts.pdf> Examples on R-2536 that came up at the meeting that need your concurrence include: Site 43C 54” Pipe over 390 feet would not be buried. Site 33 54” Pipe over 400 Feet long will not be buried. Site 35 6X7 RCBC on 4.89% slope will not be backfilled and will have sills if buried a foot. Regards, Matt Matthew (Matt) Lauffer, PE, CPM Assistant State Hydraulics Engineer Hydraulics Unit Department of Transportation 919 707 6703 office 919 621 0443 mobile mslauffer@ncdot.gov <mailto:mslauffer@ncdot.gov> 1590 Mail Service Center Raleigh, NC 27699-1590 1020 Birch Ridge Dr. Raleigh, NC 27610 Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. Facebook <https://www.facebook.com/NCDOT1/> Twitter <http://ncdot.gov/travel/twitter/> YouTube <https://www.youtube.com/user/NCDOTcommunications> ________________________________ Email correspondence to and from this sender is subject to the N.C. Public Records Law and may be disclosed to third parties. / ' � / ' / � � S�G � / ' � � �+ 5 /� � � SPjEI��J FYCH=_ '. S.EG T91L\ � '�"l � -- � -7 � ° ,i �� ., n P� / 1 / � ��R i� / / /// / �/� '� ,�,. � � N ? �dF GE WA?ER � � J � / .. �I �}' " �� B� � � 1��i ��i �� L� RIPRA E FABJ, ��..' 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