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HomeMy WebLinkAbout20150522 Ver 1_DI00106 - US 311 Environmental Preconstruction Meeting_20160119Carpenter,Kristi From: Shaver, Larry B Sent: Tuesday, January 19, 2016 2:19 PM To: Frank Fulp (frank@smithrowe.com) (frank@smithrowe.com); rick@smithrowe.com Cc: Swicegood, Dale L; Braquet, Stephanie; Wanucha, Dave; Wallace, Gary T Subject: DI00106 - US 311 Environmental Preconstruction Meeting Frank/Rick, The environmental preconstruction meeting was held onsite today for the US 311 project (D100106) over Rickers Branch in Stokes County. In attendance were Dale Swicegood (Resident Engineer), Larry Shaver (Asst. Resident Engineer), Stephanie Braquet (NCDOT Environmental Specialist), and Dave Wanucha (NCDENR Environmental Senior Specialist). Following is a summary of the items that were discussed: • The physical location of the proposed culvert was identified. • The proposed culvert has three barrels, the low flow channel being located in the center. The outer barrels will have a 3'sill and the sides of the stream channel will be benched up to this high flow elevation. The center barrel has a 1' sill. • The plans call for filling the low flow barrel with native material from the existing streambed. However, since the existing streambed is being used to carry the stream until water is turned into the culvert, this is not possible. Dave agreed that a mixture of native material and rip rap can be used for the high flow barrels as per plan, but preferred that the low flow barrel not be filled. Dave and Dale agreed that it would be best to construct a 5' to 10' long ramp just behind the 1' sill of the low flow barrel to prevent a waterfall effect. Dave also mentioned that the ramp will help aquatic life moving upstream. With the amount of sand lining the banks of the existing stream, Dave feels that the streambed of the low flow barrel will naturally establish itself pretty quickly. Dale asked if material excavated for the culvert site could be used for the high flow barrels, if it is somewhat sandy. Dave felt that it should have a sandy texture and agreed. Once construction starts and excavation begins, Stephanie will return to the site to view the excavated material and confirm the texture. • The field of Parcel # 4 has an 8" drain pipe empting into the creek. Water was constantly flowing during the meeting. As shown on the roadway drawing, the pipe will have to be extended when the existing channel is filled in. • Onsite rain gauges will be used for NPDES reporting. Stephanie asked that the NPDES reports not be signed until all information for the week had been entered. If you have any questions, please let me know. Larry B. Shaver Senior Assistant Resident Engineer Highway Division 9 Resident Engineer's Office, Davidson County 336 249 6255 office 704 223 7543 mobile Ibshaver(cancdot.qov 452 Central Avenue Lexington, NC 27292 � � ±� �!M � � Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties. Email correspondence to and from this sender is subject to the N.C. Public Records Law and may be disclosed to third parties.