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Home My WebLink About20120270 Ver 4_Application_20140307UNITED STATES MARINE CORPS MARINE CORPS INSTALLATIONS EAST - MARINE CORPS BASE PSC BOX 20005 CAMP LEJEUNE NC 28542 -0005 BEMD MAR 0 5 2014 From: Commanding General, Marine Corps Installations East - Marine Corps Base, Camp Lejeune To: Commanding Officer, United States Army Corps of Engineers, Wilmington District 69 Darlington Avenue, Wilmington, NC 28403 Attn; Brad Shaver Subs: PERMIT MODIFICATION REQUEST FOR DEPARTMENT OF THE ARMY PERMIT (ACTION ID NO. SAW -2010- 01797) Encl: (1) Permit Modification Request for Maintenance Hangar P683/P687, Parking Structure, and Airfield Service Roads (Phase III) on Marine Corps Air Station New River, Marine Corps Base Camp Le]eune North Carolina 1. The enclosed information is our request to permanently impact an additional 0.89 acres of jurisdictional wetlands to complete Phase III of the subject project. Unavoidable impacts due to relocation of perimeter road will result in a permanent impact totaling 1.34 acres. 2. This information has been prepared by our contractor Dial Cordy and Associates, Inc., on behalf of Marine Corps Installations East - Marine Corps Base Camp Le]eune. 3. The point of contact for this project is Mr. Martin Korenek, Environmental Conservation Branch, Environmental Management Division, G -F, at (910)451 -9384 or martin.korenek @usmc.mil. �. <�4 (' � JOHN R. TOWNSON By direction Copy to: NCDENR, DWQ, 401 Section, attn: K. Higgins (5 copies) NCDENR, DWQ, WRO, attn: J. Steenhuis We] DIAL CORDY AND ASSOCIATES INC. Environmental Consultants 490 Osceola Avenue Jacksonville Beach, FL 32250 904 - 241 -8821 Fax 904 - 241 -8885 Karen Higgins NCDENR Division of Water Resources Water Quality Programs 401 and Buffer Permitting 1650 Mall Service Center Raleigh, NC 27699 -1650 WE ARE SENDING YOU x❑enclosed via THE FOLLOWING ITEMS HShop drawings Copy of correspondence US Mad LETTER OF TRANSMITTAL DATE 2/11/2014 1PROJ NO 1292 ATTENTION Karen Higgins SUBJECT permit modification request DWQ #2012 0270 54 2/11/2014 u v is apt EMAR 0 7 2014 1J under separate cover vi XePrints Bamples racings BContract documents Change order other FINAL REPORTS COPIES DATED DWG NO DESCRIPTION 54 2/11/2014 Hardco ies for NCDENR Division of Water Resources MCAS New River Cover letter 1 2/12/2014 Check for permit fee payable to NCDENR DWR for $240 00 For review and concurrence Returned or review and comment Resubmit copies for review For your information for corrections Submit copies for distribution As requested Prints returned after loan to us Return corrected prints F]No exception taken may be used as submitted F Exceptions as noted may be used subject to comments REMARKS If you have any questions regarding the enclosed, please contact Jason Evert at 904 - 476 -9571 If enclosures are not as noted, please advise us at once Signed Jason Evert, Project Manager 10 February 2014 Mr Brad Shaver Project Manager USACE Wilmington District CESAW- RG(1145 -b) 69 Darlington Ave Wilmington, NC 28403 DIAL CORDY AND ASSOCIA -I -ES INC Lr lull onmcr)lal Consulrcrnrs Vt07. L ti 6\1A RE Modification Request for Action ID SAW- 2010 - 01797/ Department of the Army Permit North Carolina DWQ Project # 2012 0270/ Onslow County New River Marine Corps Air Station, Camp Lejeune, NC 28542 -0004 Dear Mr Shaver, n�= Your last official correspondence regarding the above - referenced project (dated 29 November 2012) provided the applicant with a modification to proposed work During the permit process we segregated the project elements into phases, based on construction and planning schedules (Phases I, II, and III), and were ultimately permitted to impact up to 1 84 acres of wetlands regulated by DA under CWA Section 404 (and an additional 0 014 ac regulated by NCDENR under Section 401) For the Phase III portion only, the applicant was permitted to permanently fill 0 45 acre (both under Section 404 and 401 regulatory authorities) Those impacts were to be mitigated via purchase of credits equal to 0 45 acre These impacts were listed in table format in our letter to USACE dated 20 November 2012, the relevant portion of which is shown below Permitted permanent and emporary im pacts November 2012) Phase Wetland impact Impact type Area ac III Wi -1P Permanent 0 4300 ac III [Vi-IT Tem oral , 0 0500 ac III Wi -2P Permanent 0 0200 ac III Wr -2T Tens or cu 0 0118 ac x"515 sf To assist in your review the applicant's plans for Phase III, we stated in our correspondence dated 4 October 2012 the following "Perimeter Road near Wetland I (i e , "i ") is proposed for realignment in accordance with UFC 3 -260- 01 (1 e , 500 feet clear distance +7 1 -foot allowance for a perimeter fence), which results in impacts to Wetland I Because a future project phase (to be completed between approximately 2014 and 2016) will extend the western runway /over -run to the southwest (to address the airfield operational design considerations in the NATOPS Flight Manual for MV -22s and also to fulfill UFC 3- 260 -01 requirement for 1,000 -ft over -runs on all Navy and Marine Corps runways), the proposed Perimeter Road will need to be realigned again in a few years to run parallel to the future runway /over -run, heading farther to the southwest before turning to the northwest around the end of the over -run In the interim, the roadway will be temporarily configured to balance aviation safety and wetland protection, the UFC clear distance is observed for as much of the roadway as possible, but the corner of Perimeter Road near impacts Wi -1 and Wi -2 (see Figure 8) will not involve a 90- degree turn, but instead a graded turn The sharper- angle- turn alternative would have had approximately 100% more unpacts to wetlands due to installing the necessary grading along two road segments that together are longer (and closer to the wetland) than the proposed single reach To achieve this reduction of impacts, a temporary exemption from the UFC was allowed, but dust for the turn/corner area This will allow for at least a temporary preservation of approximately 0 75 acre of wetland functions for the habitat area that would have been impacted by a 90- degree corner positioned 570 feet from the existing over -run The combined wetland impacts for Phase III have been minimized from the original plan by 0 69 acres and further reductions are not practicable or possible given engineering and aviation /transportation safety concerns " As a follow -up to the above, we indicated in subsequent correspondence the following from our letter dated 20 November 2012 "At this point in time, only the conceptual framework for such future work is available, as discussed in our 4 October 2012 letter Detailed design and engineering work for that future work is not currently under contract by the applicant, and that would have to be completed (along with any future permit modification) to allow for the runway extension to be constructed In the interim, we continue to support acquiring permits to construct the re- aligned roadway as specified in our 4 October letter, as that will provide additional safety as well as minimize wetland impacts " In November 2013, the applicant was able to complete detailed engineering for the Phase III impact areas referenced above (the portion indicated as being ready for construction between 2014 and 2016) In preparation for extension of the over -run for Runway 05/23 (the western runway on the airfield) to the southwest (necessary pursuant to the NATOPS Flight Manual for MV -22s and also to fulfill UFC 3- 260 -01), the applicant is now requesting a permit modification to accommodate the re- location of the perimeter road to the south As indicated above, the applicant was able to be granted a temporary exemption from compliance with UFC 3- 260-01 specifically regarding (1) the requirement of 500 feet clear distance (laterally from the centerline of the runway) in addition to the 7 1 -foot allowance for a perimeter fence and (2) 1,000 feet clear distance (from the end of the runway to the southwest) for all Navy and Marine Corps runways, and was therefore able to plan for only a slight impact to Wetland "I" until it was absolutely necessary to be in complete compliance with the UFC At this time, it is now necessary to affect full compliance with federal aviation safety regulations Avoidance and Minimization Given the above requirements, the applicant's engineer has repositioned the corner /vertex of Perimeter Road approximately 200 feet to the south, while continuing to minimize impact to wetlands the maximum extent practicable To that effect, the road is proposed for placement as close to the runway as possible, and sheet pile walls are proposed along the road surface boundary (at/near the corner) where typical grading would have impacted an additional approximate 6,000 square feet (40 feet wide slope extending approximately 150 feet along the road) to the south and 9,600 square feet (40 feet wide slope extending approximately 240 along the road) to the north The use of the walls will result in minimizing impacts by 0 46 acre (see related cross - sections on revised Figures 9 and 10) Furthermore, the applicant proposes to maintain the hydrological connection to wetland habitats in the central portion of the impact area, dust north of the corner This will prevent impacts to an additional 0 2 -acre wetland area Therefore, in summary, the applicant has minimized impacts by approximately 0 66 acre Where possible, adjacent to permanent wetland impact areas, the applicant will re -grade and restore certain wetland areas following construction These temporary wetland impact areas will recover, to once again perform most wetland functions Page 2 of 4 Request for Modification of SAW- 2010 - 01797/ 10 February 2014 Alternatives In addition to the no action alternative, three others could be considered They include (1) positioning Perimeter Road to the north, outside of the wetland area, (2) positioning Perimeter Road farther to the south of the currently proposed alignment, and (3) positioning Perimeter Road as shown in revised Figure 8 (the preferred alternative) Because the no action alternative and alternative "1" above would not result in compliance with air safety regulation, they should be excluded from further consideration Alternative "2" above is not preferred as it would involve additional impacts to wetlands and would prove more costly than the preferred alternative Therefore, the currently proposed alignment (alternative "3 ") is the only alternative that supports the project objectives (safe transit around the air field) and comprises wetland impacts that have been minimized as much as practicable Unavoidable Impacts Unavoidable impacts due to the relocation of Perimeter Road summarized below, in comparison to the impacts as previously predicted Formerly anticipated permanent impacts were 0 45 acre, currently, the applicant anticipates approximately 1 34 acres of Jurisdictional wetland impacts In addition, the applicant anticipates that approximately 361 linear feet of intermittent stream /ditch ( "R05" on the federal J D ) contained within the limits of the Jurisdictional wetland will be temporarily impacted (due to fence construction on its northeastern bank/top -of- slope), its downstream -most, approximately 70 -foot section will be relocated into a 48 -inch, round, reinforced, concrete pipe under the proposed road and then daylight to the historical streambed in the native wetland "WI " Permitted permanent and temporary jurisdictional impacts for Phase III (November 2012) Wetland impact Impact type Area ac WI -1P Permanent 0 4300 ac WI -I T Temporary 0 0500 ac WI -2P Permanent 0 0200 ac WI -2T Temporary 0 0118 ac Totals 0 45 permanent and 0 06 acres temporary Proposed, modified permanent and temporary jurisdictional impacts for Phase III (December 2013) Wetland impact Impact type Area ac WH -1P Permanent 007 WI -1P Permanent 093 WI -1T Tempormy 005 WI -2P Permanent 001 WI -3P Permanent 027 WI -3T Temporary 005 WI -4P Permanent 006 WI4T Temporary 015 Totals 1 34 permanent and 0 25 acres tempos ary Page 3 of 4 Request for Modification of SAW- 2010 - 01797/ 10 February 2014 Mitigation The applicant will provide compensatory mitigation for the above - reference minimal and necessary wetland impacts The type and nature of mitigation will comprise that which was previously provided for other project phases We appreciate your efforts on behalf of regulatory compliance for this important project Should you have any questions regarding the above, please contact me at (904) 476 -9571 or revert@dialcordy com at your earliest convenience Best Regards, Jason Evert Senior Ecologist Page 4 of 4 Request for Modification of SAW- 2010 - 01797/ 10 February 2014 C/1 tONGSTAPF sTRrrT 7' PAVLU -SHOM nER SEEDED G ",FEDFD SH10R SRCXlLOFR I I_1! fKAVLL— I (IYP} VARIES ASPHALT PATEMLNI SIRUCIUFa- 16" WA ItR —` DBL 36" RCP - RIPRAP PAD �— LXISIINL WLILANU LINL -- NEW WETLAND LINE TrNPORART Wrn ANn IMPACT I WF 487 Sr SS1 Sh MP AETLAND WETLAND IMPACt IMPACT TO IBE RESTORED \— MA�CIi rwi11NG GRADE PFRIMFTER SFCIIRITY FENCF C/L PERIMETER ROAD WAIF YADTH VnRIFS SOU BOTTOM AND L 11' SLLULU 12 ROADWAY 6 SLtUtU SHOULOLR U A ii SIDE BANK- TYP TYP (TYP} 10 Ii IRAVLL it TRAVLL SLLO RLMAINOLR OF (m, LANt IYP LANE IYP SIDL BANKS /M') OR I 2 DR 1,QR .• S aptc5`, 'uEn REMA1NnFR OF MATCIi r -4-nNC — GRADE SOD (Tyr) WETLAND 5 CROSS SE"ON 1 WETLAND 7 CROP SE"ON LXISIINL W.ILANU UNL ROAD AU PI I.lul tl it ---- NFW WrTI AND UNr — TTMPORARY Wrn AND IMPACT LINF SW 7DT)i VARIES (N TS) X AWHALI PAVLNLNI STRUCTURE EXISTING VIFTI AND UXF hLW b =11-ANL LINE TELIrORARY W -FLAVD IYPA_I UNL 0111 AC 731 V LRMANLNT TF A Y. NO YrE ILANU INPACt IMI'ACt t0 � eL RLSI(XlLU ET05TIAC TYPICAL SECTION NOTES I SUPERELEVATEOROAOWAYTOSECONSTRDCTEDINA COOROVYCEYATNNCOOT STANDARD ORNAING 22501 STATION RANGE RECLUSES tS7ANGM RWIpA AtcD W RUNOFF LENGTHS 7 UNDERCUT EASTING GROUND IY MM11 PRCOFWU UVI PLACE GEOGRI) IAYI l Wetland I Cross Section (Revised December 2013) PITS) WITH- PROJECT CROSS - SECTIONS AT AFFECTED WETLAND AREAS 10 BOTTOM SOO N Drawn By TL (Haskell) Date December 2013 Approved By- JE SHOULUL4 U" LALH STUt DANK FIGURE I ii TRAVEL (m, (LIT' ) LANE (TYP) 'uEn REMA1NnFR OF SIDE BANKS (TYP ) ( �u MATCH 1XISTANC ASI'HALI PAVtMENi ---- SOD () I I LRAUt S`f RUCtUNE �(?Yf' (N TS) X AWHALI PAVLNLNI STRUCTURE EXISTING VIFTI AND UXF hLW b =11-ANL LINE TELIrORARY W -FLAVD IYPA_I UNL 0111 AC 731 V LRMANLNT TF A Y. NO YrE ILANU INPACt IMI'ACt t0 � eL RLSI(XlLU ET05TIAC TYPICAL SECTION NOTES I SUPERELEVATEOROAOWAYTOSECONSTRDCTEDINA COOROVYCEYATNNCOOT STANDARD ORNAING 22501 STATION RANGE RECLUSES tS7ANGM RWIpA AtcD W RUNOFF LENGTHS 7 UNDERCUT EASTING GROUND IY MM11 PRCOFWU UVI PLACE GEOGRI) IAYI l Wetland I Cross Section (Revised December 2013) PITS) WITH- PROJECT CROSS - SECTIONS AT AFFECTED WETLAND AREAS PROPOSED MODIFICATION TO SAW-2010-01797 DWQ Project #2012 0270, MCAS NEW RIVER NC Not To Scale Drawn By TL (Haskell) Date December 2013 Approved By- JE DIRE CORDY ..t2 .`i!Ltt-)A•i -I.ti I7VL (, +1Trr.0 N.d.. adluu. J13 -1292 FIGURE 5j �\aN \ A 524+ m � 0 ti KEY DIAGRAM FOR WITH- PROJECT CROSS - SECTIONS AT AFFECTED WETLAND AREAS PROPOSED MODIFICATION TO SAV1t- 2010-01797 DWQ Project #2012 0270 MCAS NEW RIVER NC Not To Scale Drawn By: TL (Haskell) Date: December 2013 Approved By JE C:C RDY 113 -1292 FIGURE 10 WETLAND I CROSS SECTION LOCATION (REVISED DECEMBER 2013) '0 0 o � t PT: i x 00 �� ♦ Gib 'o \ I a) \ e w O 1 t r 1 t X ps to t t w \ \ \ C, o� 638+ Q wg PERIMETER_ROAD _ 635 634 +00 633 +00 wo i \ Milt �. - o �I TOE d 5 5 or 10 10 wg PERIMETER_ROAD _ 635 634 +00 633 +00 wo i \