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Home My WebLink About20081602 Ver 4_Application_20111220r � M sTNE � � � � '� .� �� STATE OF NORTH CAROLINA 0 ��a '� r�-a ��" � �� Cr� ! � � � � � 201> ��SAND T R�� ACIry DEPARTN�NT OF TRANSPORTAT`ION A�Re''�cr� BEVERLY EAVES PERDUE GOVERNOR U S Army Corps of Engineers Regulatory Field Office �Post Office Box 1000 Washington NC 27889 1000 ATTN Mr William J Biddlecome NCDOT Coordinator EUGENE A CONTI 1R SECRETARY December 16 2011 �' � 11� �� V � � N C Dept of Environment and Natural Resources D�vision of Coastal Management 400 Commerce Avenue Morehead City NC 28557 ATfN Mr Stephen Lane NCDOT Coordinator Sub�ect Permit Modification Request for the Individual Section 404 Permit, Individual Water Quafity Certification, and CAMA Permit for the widening of US 158/NC 34 from East of Pasquotank River to the US 158/ NC 34 split in Camden County Federal Aid Pro�ect No STP 158(2) Division 1 TIP Nos R 2414 A&B Debit $670 from WBS 34430 1 1 Reference Original Permit Application requested October 15 2008 Section 404 Individual Permit issued January 14 2009 USACE Permit No SAW 1994 02124 Section 401 Water Quality Certification issued December 18 2008 NCDWQ Pro�ect No 003774 Division of Coastal Management Permit issued January 13 2009 DCM Permit No 03 09 Dear Gentlemen Please see the enclosed revised permit drawings (Sheets 1 14 15 16 17 29 30 31 32 of 38) roadway drawings and revised EEP Acceptance Letter for the above referenced pro�ect Due to the continual re�ections of bids by contractors due to the stabilization methods the NCDOT has redesigned the soil stabilization method which has resulted in impact changes at the three culvert locations on the above referenced pro�ect Due to these changes a permit modification is requested by the Department MAILING ADDRESS NC DEPARTMENT OF TRANSPORTATION PROJECT DEVELOPMENT AND ENVIRONMENTAL ANALYSIS 1598 MAIL SERVICE CENTER Rn�EtGH NC 27699 1598 TELEPHONE 919 707 6100 FAX 919 212 5785 WEBSITE WN/W NCDOT ORG LOCATION 1020 BIRCH RIDGE DRIV RALEIGH NC 2761 O 4328 � Substrate Stabilization Method Change . Due to the need to prevent subsidence around the three culverts along the pro�ect different stabilization methods have been proposed The department considered using aluminum cuiverts and then a mass soil mixing to stabilize the area It has now been determined that the most predictable and cost predictable method is to use a buoyant cement method (also referred to as foamed concrete) at the approaches and to place the ---culverts on piles atthe crossings This wiil-ensure stability-as well remove the-concerns of----- the uncertainty of subsurface material Despite of the Department s minimization efforts the pro�ect footprint will expand at the culvert sites This is necessary to safely detour traffic around this larger stabilization operation Right of way limits will not change as a result of these activities This activity will occur at the approaches at two of the three culverts sites previously identified as Permit Sites 3 and 6 The concrete will be contained inside the protective form providing a barrier between the concrete and the �urisdictional resources abutting this activity Site 3 The fill slopes will be expanded into a wetland area previously permitted as hand clearing However the hand clearing limit will not be expanded at this location As a result the permanent fill in wetlands will increase from 0 65 to 0 67 acre and the hand clearing impact will be reduced from 0 26 to 0 24 acre The culvert type has also been reverted back to a single barrel 8 by 6 reinforced concrete box culvert (RCBC) as this stabilization method obviates the need for the lightweight aluminum Site 6 The fiil slopes will be expanded into an area previously permitted as hand clearing and the area of hand clearing will also expand out in the amount previously identified in earlier permits (0 37 acre) As a result the permanent fill in wetlands will increase from 0 85 to 0 87 acre The hand clearing amount will remain the same (0 37 acre) as it will be moved out from the expanded fill line The cutvert type has also been reverted back to a double barrel 6 by 5 RCBC as this stabilization method obviates the need for the fightweight aluminum � v Mitigation Compensatory mitigation for the additional 0 04 acre of wetland impact will be provided by EEP A copy of the acceptance letter is included with this request Section 404 Permit NCDOT requests that the USACE review this application and issue a modification for the Individual 404 Permit issued October 6 2010 as required for the above described activities — ---- - — Section 401 Permit NCDOT requests that the NCDWQ review this application and issue a modification for the Individual 401 Certification issued October 20 2010 as required for the above described activities In accordance with 15A NCAC 2H 0501(a) we are providing five copies of this modification request to the DWQ for their approval and $570 to act as payment for processing the permit modification (see sub�ect line) CAMA Permit NCDOT requests that the Division of Coastal Management review this application and issue a modification for the permit issued December 9 2010 as required for the above described activities Debit $100 modification fee from the aforementioned (see sub�ect line) WBS element A copy of this permit modification request and its distribution list will be posted on the NCDOT website at http //www ncdot org/doh/preconstruct/pe/neu/permit html Thank you for your assistance with this pro�ect If you have any questions or need additional information please contact Michael Turchy at maturchy@ncdot gov or (919) 707 6157 Sincerely � � Gregory J Thorpe Ph D Manager Pro�ect Development and Environmental Analysis Unit Cc NCDOT Permit Application Standard Distribution List -, �