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Home My WebLink About20160194 Ver 2_More Information Received_20180220Action History (UTC-05:00) Eastern Time (US & Canada) �brrrit by Anonymous User 2/20/2018 1:17:58 PM (Supplemental Submital) Accept by Carpenter,Kristi 2/20/2018 1:53:50 PM (DOT - E�asting Project) • The task was assigned to Carpenter,Kristi 2/20/2018 1:18 PM Water Resources ENVIRONMENTAL OUALITY Staff Review: i�#* 20160194 Reviewer List:* Select Reviewing Office:* Version * 2 Joanne Steenhuis:eads\jhsteenhuis Wilmington Regional Office - (910) 796-7215 Is the project located within a NC DCM Area of Environmental Concern (AEC)?* C' Yes C' No C•' Unknown Does this project C' Yes require payment?* r No Project Submittal Interim Form subrritted: 2/20/2018 Submittal Type: C•' New Project C' Pre-Application Submittal C' More Information Response Project Contact Information: Name: Mason Herndon Who is subrritting the inforrration? Email Address: tmherndon@ncdot.gov Project Information: Project Name: SR 1426 Pipe Replacement Is this a public transportation project? C' Yes l' No Is the project located within a NC DCM Area of Environmental Concern (AEC)?* l' Yes C•' No C' Unknown TI P#: WBS#: (Applies to DOT projects only) County (ies) * Brunswick Describe the attachments: Modification/Re-evaluation of DWR Project 20160194, proposed pipe replacement on SR 1426 (Mt. Misery Rd.) in Brunswick County. Original permit permit has expired and project has been modified and is now below threshold of requiring written approval. Seeking approval to proceed under WQC 4132. Please upload all files that need to be submited. Mt Misery Pipe Package_20180220.pdf 487.25KB Only pdF files are accepted. r7 By checking the box and signing box below, I certify that: o I have given true, accurate, and complete information on this form; o I agree that submission of this form is a"transaction" subject to Chapter 66, Article 40 of the NC General Statutes (the "Uniform Electronic Transactions AcY') o I agree to conduct this transaction by electronic means pursuant to Chapter 66, Article 40 of the NC General Statutes (the "Uniform Electronic Transactions AcY'); o I understand that an electronic signature has the same legal effect and can be enforced in the same way as a written signature; AND o I intend to electronically sign and submit the form. Signature: f��dr.�t ��t��o� STATE OF NORTH CAROLINA DEPARTMENT OF TRANSPORTATION ROY COOPER GOVERNOR Brad Shaver, NCDOT Coordinator Wilmington Regulatory Field Office US Army Corps of Engineers 69 Darlington Avenue Wilmington, NC 28403 JAMES H. TROGDON, III SECRETARY February 20, 2018 Joanne Steenhuis, NCDOT Coordinator NC Department of Environmental Quality Division of Water Resources 127 Cardinal Drive Ext. Wilmington, NC 28405 Subject: Modification/Re-evaluation of Section 404 Nationwide Permit 3(SAW 2016 00246) and DWR 401 WQC (DWR Project No. 20160194) for proposed pipe replacement on Mt. Misery Rd (SR 1426) in Brunswick County. WBS # 3B.201011 Dear Mr. Shaver & Ms. Steenhuis: The North Carolina Department of Transportation (NCDOT) acquired written approval from your agencies on March 1, 2016 to replace an existing pipe on Mt Misery Road (SR 1426) in Brunswick County. The pipe is located 1.8 miles west of the intersection of SR 1430 (Cedar Hill Rd.) at the crossing of Indian Creek which is classified as C;Sw waters. Due to the large number of pipes that had to replaced following Hurricane Matthew, this pipe replacement had to be delayed and the original permits have expired, therefore NCDOT is providing the enclosed information requesting your agency to re-evaluated their original written approval of this project. In preparation of this request NCDOT has also revisited this project internally and has determined that the following changes need to be disclosed: The proposed structure in the original submittal was 2@ 81" x 51" x 40 ft. CMPA. After coordination with pipe manufacturers the actual proposed structure is 2@ 87" x 63" x 40 ft. CMPA. A 2.2 ft. sill is still proposed on the inlet of the overflow pipe. Permanent stream impacts have been reduced from 441f to 31 lf and temporary stream impacts have been reduced from 601f to 291f. The reduction in impacts is due to modification of the proposed rip rap placement at the outlet end of the structure. Based on the water depth in the channel, NCDOT is revising the original proposal to include a submerged 10:1 rip slope at the outlet rather than flling in the entire scour hole with rip rap. This revision would still allow aquatic passage since the pipe is 1.75 ft. below the normal water surface and would reduce impacts to the natural stream bank. The attached revised permit drawings and wetland impact summary reflect the changes described above. Under the current NW 3 permit and regional conditions, it is anticipated that formal notice under NW 3 is no longer required to the US Army Corps of Engineers (USACE) for this project. Furthermore, given that the proposed reduction in permanent stream impacts is below 401f, it is anticipated that written approval is no longer required from DWR under WQC 4132. By submittal of this information and attachments, NCDOT is requesting approval from your agency that NCDOT can proceed with this replacement under the new Nationwide 3 and WQC 4132 without written approval. Mailing Address: NC DEPARTMENT OF TRANSPORTATION DNISION OF HIGHWAYS 5501 BARBADOS BOULEVARD CASTLE HAYNE, NC 28429-5647 Telephone: (910 341-2000 Fax: (910) 675-0143 Customer Service: 1-877-368-4968 Website: www.ncdot.gov Location: 5501 BARBADOS BOULEVARD CASTLE HAYNE, NC 28429-5647 If you have any questions or need additional information, please feel free to contact me. Sincerely, ��y � / Digitally signed by Mason Herndon `%� F�`-- /� / DN: rn=Mason Herndon, o=NCDOT, ou=Division � ��'�'� 3,email=tmherndon@ncdot.gov,c=US Date: 2018.02.20 13:0527 -OS'00' Mason Herndon NCDOT Division 3 Environmental Program Supervisor Enclosures 63 BRUNSW CK COUNTYo S TE AT Oo� M �ES P PE REP�ACEMENT DATA COLLECTEDo 12/09/15 NOT TO SCALE INLET 2a0 FTo � MTo M SERY RD (SR 426) S OF SR 4280 PROJECT—CROSS SECT ON � EW CLASS B RIP RAP ON OUTLET OF HIGH FLOW PIPE TO BE PLACED Cd 2.2' MATCHING INLET SILL ELEVATION FORMING NATURAL FLOOD PLAIN BENCH � CLASS B RIP RAP ON OUTLET OUTLET OF LOW FLOW PIPE TO BE PLACED FORMING A NATURAL STREAM 93075 — 50 FT UPSTREAM 92075 INVERT 93a86 — 100 FT DOWNSTREAM 92075 INVERT STREAMBED ELEVATION STREAMBED ELEVATION STREAM CROSS SECTION - 50 FEET UPSTREAM OF EXISTING INLET � 5,4 FT� � 50l FT OHWM q FT 2 FT � � 4 FT � NOT TO SCALE STREAM CROSS SECTION - 100 FEET DOWNSTREAM OF EXISTING OUTLET � 10—II FT � � 6,75 FT � IFT OHWM 2-3 FT � � 3 FT � IN NOTESo DRAWN BYe C, DUSTIN DATEa 02/12/2018 PREMIT DRAWINGo 4 OF 4 CHECKED BYo Ma HERNDON PROJECT DESCRIPTIONa REPLACE (I) @ 66" x 51" CMPA WITH (2) @ 87" x 63° CMPA W/HEADWALLo COUNTYoNEW HANOVER WETLAND PERMIT IMPACT SUMMARY WETLAND IMPACTS SURFACE WATER IMPACTS Hand Existing Existing Permanent Temp. Excavation Mechanized Clearing Permanent Temp. Channel Channel Natural Site Station Structure Fillln Fillln in Clearing in SW SW Impacts Impacts Stream No. (From/To) Size / Type Wetlands Wetlands Wetlands in Wetlands Wetlands impacts impacts Permanent Temp. Design (ac) (ac) (ac) (ac) (ac) (ac) (ac) (ft) (ft) (ft) W1 4' Upstream to 15' Upstream Hand Clearing 0.0130 W2 Pipe Inlet to 4' Upstream Headwall/Rip Rap 0.002* S1 Pipe Inlet to 30' Upstream Dewatering 26 S2 Inlet Headwall Headwall/Rip Rap 4 S3 Pipe Outlet to 27' Downstream Rip Rap 27 S4 30' Downstream of Outlet Aqua Barrier 3 TOTALS: 0.002* 0.0000 0.0000 0.0000 0.0130 0.0000 0.0000 31 29 0 Notes: " W2 = 79 SQ.FT.