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HomeMy WebLinkAbout20081177 Ver 2_Application_20091229 STATE OF NORTH CAROLINA DEPARTMENT OF TRANSPORTATION BEVERLY EAVES PERDUE (iowE OR Brad Shaver, NCDOT Coordinator U.S. Army Corps of Engineers Wilmington Regulatory Field Office 69 Darlington Avenue Wilmington, North Carolina 28403 EUGENE A. CONT1, JR. SECRETARY December 29, 2009 o-7 v,Z SUBJECT: Request for Modification of Existing 404 and 401 Permits for the extension of SR 1357 (Smith Ave.) from west of US 17 Business to NC 130 (Holden Beach Rd. ) in Shallotte, Brunswick County; TIP U-3462; Federal Aid Project STP-1357 (2); State Project 8.2231601; WBS 8 34953.1.1. Dear Mr. Shaver: The North Carolina Department of Transportation would like to request a modification to the U.S. Army Corps of Engineers Nationwide 14/33 (Action ID 1998 2173) and the corresponding Division of Water Quality Certification (DWQ Project No. 20081177 v.l) for the extension of Smith Avenue in Brunswick County, TIP U-3462. The requested modification for each site is described below. SITE 2 -L- Sta. 32+77 to 34+19 Lt. & Rt. The Department is constructing a double 9' x 7' barrel box culvert at this site. The original permit application listed the culvert length and permanent stream at 112 ft feet. After reviewing the structure plans the actual culvert length to be constructed at this site is 119 ft 5 inches. Therefore, an additional 7.5 ft of permanent stream impacts will occur at this site. In addition, the permit drawings show 15 ft of rip rap along both banks of the stream on the outlet end of the pipe. The rip rap is included in the 0.02 acre of permanent surface water impact listed in the original permit application, but not clearly identified as bank stabilization as proposed. This has now been noted in the modified impact summary as requested. SITE 2a -Drive3- 11+32 The original permit application listed permanent stream impacts for the installation twin 48" pipes at this site at 34 ft. The length of pipe listed in the Summary of Quantities for this site was 36 ft which has been installed by the contractor. Therefore, there is an additional 2 ft of permanent stream impacts at this site. SITE 3 -Y- Sta. 15+47 to 17+98 Lt. A double 6' x 5' barrel box culvert extension is proposed at this site. The original permit application lists the permanent steam impacts at this site at 19 ft. After reviewing the structure plans the actual 124 Division Drive Wilmington, NC 28401 Phone !9101251-5724 Fax: (9 10) 251-5727 culvert extension length and permanent stream impacts is 26 It 9 inches. Therefore an additional 8 It of permanent stream impacts will occur at this site. In addition, the permit drawing for Site 3 shows fill in the adjacent wetlands however, since the impacts were less than one hundredth of an acre, no impacts for fill were listed on impact summary sheet. In order to more accurately quantify the impacts depicted on the permit drawing, the modified summary of impact sheet will list this fill in wetlands as less than one hundredth of an acre(<0.01), as requested. SITE 4 -Ir Sta. 55+56 A 72" reinforced concrete pipe has been installed at this location. The original permit application listed the permanent stream impacts at this site at 140 ft. Based upon the slope stake line the contractor installed 144 ft of pipe at this location in order to keep a consistent slope in this area. Therefore an additional 4 ft of permanent stream impacts occurred at this site. In addition, the permit drawings show 20 ft of rip rap along both banks of the stream on the outlet end of the pipe. The rip rap is included in the 0.03 acre of permanent surface water impact listed in the original permit application, but not clearly identified as bank stabilization as noted before in the discussion of Site 2. After reviewing the project in the field it was determined that bank stabilization is also required on the inlet end of the pipe, therefore < 0.01 acre of permanent surface water impact (20 ft of bank stabilization) is requested for the inlet end of pipe as well. All other impacts identified in the original permit application are correct. The only other change in the modified impact summary sheet will be the enumeration of the temporary surface water impacts depicted on the permit drawings for Sites 1, 2, 2a and 3 that are less than one hundredth of an acre. These impacts will be shown as <0.01 rather than 0.00, as requested. Therefore by submittal of this letter and attached modified impact summary sheet, NCDOT is hereby requesting a modification of U.S. Army Corps of Engineers Nationwide 14/33 (Action ID 1998 2173) and the corresponding Division of Water Quality Certification (DWQ Project No. 20081177 v.]) to include the modified impacts described above and listed in the attached summary of impact sheet. The Department feels that the mitigation proposal submitted with original permit application dated July 18, 2008, is sufficient for the minor modifications included in this request. If you have any questions or need additional information please contact me at (910) 251-5724 Sincerely, Mason Herndon Division 3 Environmental Officer cc: w/attachment Mr. Brad Shaver, USACE, Wilmington Mr. Ken Averitte, DWQ, Fayetteville Mr. Chris Rivenbark, NCDOT NEU Mr. Jackson Provost, NCDOT Division 3 Mr. Stephen Lane, CAMA, Morehead City 124 Division Drive Wilmington, NC 28401 Phone(910)251-5724 Fax: (910) 251-5727 N C al v O Z L U y ? U ? a) y (6 C C U N N CL X L n t 9 WU a) o ? o ? ? w C1 y () N co r Q C C U a1 C co " Oi y w 7 X L E _ N n E WU = C) W U a 0ONa z 0 U. E 3? " 0 0 0 0 o 0LL U? U 2 O o 4) U) 0 0 0 0 0 ?w ? LL Z ' p to F E Z fn f O OZw u a' m J ?w .-. E U O O ? ? m co C N o O o N 0 0 o ci M m w E n o c 3 W 2 CA " (A v.5 c.. m c m o = U - E Cm? s s In (n co m O G O U D U R ? o c ? `o `s E ,-. a m g $ o p v o c r Z LL C CL 3 C. C is ? o o `O E v r ° a a+ (D c c o c C U N m f0 o O co p M E LL ° o < m s m n m a U ? U N 2 ? 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