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HomeMy WebLinkAbout20130918 Ver 10_U-2525C Proposed Construction Sequence Change_20180814Carpenter,Kristi From: Parker, Jerry A Sent: Tuesday, August 14, 2018 4:26 PM To: David.E.Bailey2@usace.army.mil; Norton, Apri) R Cc: Bailey, Aaron D; Whitley, Kimball; Julian, Jason R; 'dmoore@rkk.com'; Felton, Tarsher R; Harper, Aaron A Subject: U-2525C Proposed Construction Sequence Change Attachments: U-2525C Proposed Construction Sequence Change.pdf Dave and April, I have attached plans showing a proposed change in the construction sequence of a culvert installation on project U-2525C. The change involves installing a temporary diversion in a jurisdictional stream that is permitted to be filled by the conclusion of the project. The reason for the proposed diversion is due to the assertion that the proximity of the bend in the stream is so close to the work area necessary for the culvert installation that the contractors feel they may impact the live stream during installation. By installing the diversion, the amount of work area will increase and the potential for impacting the live stream should decrease. The proposed work will not create any additional stream, buffer or wetland impacts and all work will be within the proposed project limits. Best Management Practices will be utilized throughout the construction and implementation of the diversion. This email is to inform you of the proposed action, provide you an opportunity to comment and to include this action in your record keeping. Please let me know if you have any questions or concerns. Jerry Parker Environmental Supervisor Division 7 North Carolina Department of Transportation 336 256 2063 office � �irk�irC�u��dr�t.� 1584 Yanceyville St. P.O. Box 14996 Greensboro, NC. 27415-4996 a������ �������,��s���������� �� ����� ������ ��`��,� ��������,�,� �,� ,��.������ �� ��`�� �'J����`� �°��������� ��.����� �������:�,� ��W�r ����� ���.� �� ���,����,���� �� �������� �:s�����,�. I rr�7all �:urrc,��u � � � � � � � � y I�c rli��;lu�e,rl �u �C�h•ih�rl I i� ci��;e, Cu ai� rur°r7 �mii;, ;;e,i� cr i;, ;;u� ��;� �u Cmie, ,..,u� i�; ta�:ur�: ;, ..,aw ai� ir7a, I�arti��, � ' , � ' : . , ,. � CONSTRUCTION SEQUENCE 1. INSTALL PROPOSED EROSION CONTROL MEASURES 2. INSTALL STILLING BASIN FOR PUMPED EFFLUENT (MIN. VOLUME 150 CY). 3. CONSTRUCT IMPERVIOUS DIKES AND INSTALL TEMPORARY CHANNEL CHANGES WITH LINER (SEE DETAILS). 4. CONSTRUCT PROPOSED CULVERT AND CHANNEL IMPROVEMENTS. 5. REMOVE IMPERVIOUS DIKES, TEMPORARY CHANNEL CHANGES WITH LINER, AND STILLING BASIN AND DIVERT FLOW INTO PROPOSED CULVERT. b. COMPLETE ROADWAY. DETAIL 1 TEMPORARY CHANNEL CHANGE WITH LINER ( Nol to Scale) Natural Naiuml Groond ?�j D .�,'� Growd d B Min. D= 3.0 Ft. Max. d = 3.0 Ft. B= 4.0 Ft. of Liner= Geo}exfile for Soil DETAIL 2 TEMPORARY CHANNEL CHANGE WITH LINER (Noffo Scole) Nafuml Natural Ground ?•) D �,'� Ground d g Min. D= 3.0 Ft. Max. d= 3.0 Ft. B= 7.0 Ft. of Liner= Geotexfile for Soil Stahilization, _L_ �