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HomeMy WebLinkAbout20110393 Ver 1_401 Application_20110525~xQ tl - o~q3 LITTLE & LITTLE 25 May 2011 '~ ~~ , ~• Received by: ' i Date: TRANSMITTAL ' TO: Ms. Lia Myott Gileski NC DENR DWQ Wetlands and Stormwater Branch, 401 Oversight/Express Permitting Unit 512 North Salisbury Street (The Archdale Building) Raleigh, NC 27604 FROM: Amy Mackintosh ~ ~~~a~~ l! (~ MAY 2 ~ 2011 ~ • MATER 4U/W7Y ~~ sTOrun~~ a~aMCH SUBJECT: PCN for Stream Crossing- - 401 & Neuse Riparian Buffer Authorization 3200 Waterfield Drive, Greenfield South, Garner NC We are sending to you via: courier uanti Date 5 4/10/2011 5 5/25/2011 2 5/23/2011 3 5/23/2011 5 5 5 5 12/5/2001 5 1 5/11/2011 For review and permitting Remarks: Amy Mackintosh (amy.m(a~lal-la.com) Description Agent Authorization Letter PCN for Driveway stream crossing Plans - 7 sheets -full size Plans - 11x17 Vicinity Map USGS Quad map topo NRCS Soils map Stream determination letter Storm water calculations - W&R $2000 check for express review fee Copy: Sharron Scroggins, Hager Smith Doug Watson L&L Project Number (sbhav.03) Landscape Architecture /Planning PO Box 1448 Raleigh, North Carolina 27602 919/821-5645 Fax 831-2329 ~~c.p i t - 0393 O~O~ W AT~c9OG ~ ~~ ~ ~~ y: Use Onl Co action ID no. ° MAY `~ 5 2 l~wQ project no. Form Version 1.3 Dec 10 2008 t~.1AMTER Pre-Construction orm A. A licant Information µ 1. Processing ~~, ~:~:~~ ~:, 1 a. Type(s) of approval sought from the Corps: ®Section 404 Permit ^ Section 10 Permit ~' "~""""°-" 1 b. Specify Nationwide Permit (NWP) number: 39 or General Permit (GP) number: 1 c. Has the NWP or GP number been verified by the Corps? ®Yes ^ No 1 d. Type(s) of approval sought from the DWQ (check all that apply): ^ 401 Water Quality Certification -Regular ^ Non-404 Jurisdictional General Permit ® 401 Water Quality Certification -Express ®Riparian Buffer Authorization 1 e. Is this notification solely for the record because written approval is not required? For the record only for DWQ 401 Certification: ^ Yes ®No For the record only for Corps Permit: ^Yes ®No 1f. Is payment into a mitigation bank or in-lieu fee program proposed for mitigation of impacts? If so, attach the acceptance letter from mitigation bank or in-lieu fee program. ^Yes ®No 1 g. Is the project located in any of NC's twenty coastal counties. If yes, answer 1 h below. ^Yes ®No 1 h. Is the project located within a NC DCM Area of Environmental Concern (AEC)? ^Yes ®No 2. Project Information 2a. Name of project: Strategic Behavior 2b. County: Wake 2c. Nearest municipality /town: Garner 2d. Subdivision name: Greenfield South 2e. NCDOT only, T.I.P. or state project no: 3. Owner Information 3a. Name(s) on Recorded Deed: Greenfield 40 Assoc LLC 3b. Deed Book and Page No. DB 12054 PG 742 3c. Responsible Party (for LLC if applicable): Douglas G. Watson 3d. Street address: 901 Old Kight Road 3e. City, state, zip: Knightdale, NC 27545 3f. Telephone no.: 919-266-5992 3g. Fax no.: 919-266-6511 3h. Email address: dwatson@speccon.net Page 1 of 10 PCN Form -Version 1.3 December 10, 2008 Version ,• .. •• ~ 4. Applicant Information (if different from owner) 4a. Applicant is: ®Agent ^ Other, specify: 4b. Name: 4c. Business name (if applicable): 4d. Street address: 4e. City, state, zip: 4f. Telephone no.: 4g. Fax no.: 4h. Email address: 5. Agent/Consultantlnformation (if applicable) 5a. Name: J Mack Little 5b. Business name (if applicable): Little & Little Landscape Architects PLLC 5c. Street address: PO Box 1448 5d. City, state, zip: Raleigh, NC 27602 5e. Telephone no.: 919-821-5645 5f. Fax no.: 919-831-2329 5g. Email address: mack.l@lal-la.com Page 2 of 10 PCN Form -Version 1.3 December 10, 2008 Version B. Project Information and Prior Project History 1. Property Identification 1 a. Property identification no. (tax PIN or parcel ID): 1730--02-3191 1 b. Site coordinates (in decimal degrees): Latitude: 35.6800 Longitude: - 78.5600 (DD.DDDDDD) (-DD.DDDDDD) 1 c. Property size: 13.768 acres 2. Surface Waters 2a. Name of nearest body of water (stream, river, etc.) to White Oak Creek- #27-43-11 proposed project: 2b. Water Quality Classification of nearest receiving water: C, NSW 2c. River basin: Neuse 3. Project Description 3a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this application: Undeveloped wooded site within industrial subdivision. 3b. List the total estimated acreage of all existing wetlands on the property: 2.53 Ac. 3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property: 2013 LF 3d. Explain the purpose of the proposed project: Construction of a driveway to access a proposed group care facility. 3e. Describe the overall project in detail, including the type of equipment to be used: Site and building construction, including mass grading using typical construction equipment. 4. Jurisdictional Determinations 4a. Have jurisdictional wetland or stream determinations by the Corps or State been requested or obtained for this property / ®Yes ^ No ^ Unknown project (including all prior phases) in the past? Comments: 4b. If the Corps made the jurisdictional determination, what type ^ Preliminary ®Final of determination was made? 4c. If yes, who delineated the jurisdictional areas? Agency/Consultant Company: Soil & Environmental Name (if known): Consultants Other: 4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation. SAW 2009-02023 (11-03-2009), DWQ NBRRO-01-300 (12-05-2001). 5. Project History 5a. Have permits or certifications been requested or obtained for ^Yes ®No ^ Unknown this project (including all prior phases) in the past? 5b. If yes, explain in detail according to "help file" instructions. 6. Future Project Plans 6a. Is this a phased project? ^Yes ®No 6b. If yes, explain. Page 3 of 10 PCN Form -Version 1.3 December 10, 2008 Version C. Proposed Impacts Inventory 1. Impacts Summary 1 a. Which sections were completed below for your project (check all that apply): ^ Wetlands ®Streams -tributaries ®Buffers ^ Open Waters ^ Pond Construction 2. Wetland Impacts If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted. 2a. 2b. 2c. 2d. 2e. 2f. Wetland impact Type of jurisdiction number - Type of impact Type of wetland Forested (Corps - 404, 10 Area of impact Permanent (P) or (if known) DWQ -non-404, other) (acres) Tem ora (T) W1 ^ P ^ T ^ Yes ^Corps ^ No ^DWQ W2 ^ P ^ T ^ Yes ^Corps ^ No ^DWQ W3 ^ P ^ T ^ Yes ^Corps ^ No ^DWQ W4 ^ P ^ T ^ Yes ^Corps ^ No ^DWQ W5 ^ P ^ T ^ Yes ^Corps ^ No ^DWQ W6 ^ P ^ T ^ Yes ^Corps ^ No ^DWQ 2g. Total wetland impacts 0 2h. Comments: 3. Stream Impacts If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this question for all stream sites impacted. 3a. 3b. 3c. 3d. 3e. 3f. 3g. Stream impact Type of impact Stream name Perennial Type of jurisdiction Average Impact number - (PER) or (Corps - 404, 10 stream length Permanent (P) or intermittent DWQ -non-404, width (linear Temporary (T) (INT)? other) (feet) feet) S1 ®P ^ T Driveway crossing Unnamed tributary of White ®PER ^INT ®Corps ®DWQ 3' 136' Oak Creek S2 ^ P ^ T ^PER ^Corps ^ INT ^DWQ S3 ^ P ^ T ^PER ^Corps ^ INT ^DWQ S4 ^ P ^ T ^PER ^Corps ^ INT ^ DWO S5 ^ P ^ T ^PER ^Corps ^ INT ^DWQ S6 ^ P ^ T ^PER ^Corps ^ INT ^DWQ 3h. Total stream and tributary impacts 136' 3i. Comments: Page 4 of 10 PCN Form -Version 1.3 December 10, 2008 Version 4. Open Water Impacts If there are proposed impacts to lakes, ponds, estuaries, tributaries, sounds, the Atlantic Ocean, or any other open water of the U.S. then individually list all open water impacts below. 4a. Open water impact number - Permanent (P) or Temporary T 4b. Name of waterbody (if applicable) 4c. Type of impact 4d. Waterbody type 4e. Area of impact (acres) 01 ^P^T 02 ^P^T 03 ^P^T 04 ^P^T 4f. Total open water impacts 4g. Comments: 5. Pond or Lake Construction If and or lake construction ro osed, then com lete the chart below. 5a. Pond ID b 5b. Proposed use or purpose of 5c. Wetland Impacts (acres) 5d. Stream Impacts (feet) 5e. Upland (acres) num er pond Flooded Filled Excavated Flooded Filled Excavated Flooded P1 P2 Sf. Total 5g. Comments: 5h. Is a dam high hazard permit required? ^ Yes ^ No If yes, permit ID no: 5i. Expected pond surface area (acres): 5j. Size of pond watershed (acres): 5k. Method of construction: Page 5 of 10 PCN Form -Version 1.3 December 10, 2008 Version 6. Buffer Impacts (for DWQ) If project will impact a protected riparian buffer, then complete the chart below. If yes, then individually list all buffer impacts below. If an impacts require miti ation, then ou MUST fill out Section D of this form. 6a. ® Neuse ^Tar-Pamlico ^ Other: Project is in which protected basin? ^ Catawba ^ Randleman 6b. 6c. 6d. 6e. 6f. 6g. Buffer impact number- Reason Buffer Zone 1 impact Zone 2 impact Permanent (P) for impact Stream name mitigation (square feet) (square feet) or Temporary required? T B1 ®P ^ T Driveway Unnamed tributary to White ^ Yes 6483 4282 crossing Oak Creek ®No B2 ^ P ®T Erosion Unnamed tributary to White ^ Yes 0 1697 control Oak Creek ®No B3 ^ P ®T connection White Oak Creek ®Nos 0 782 6h. Total buffer impacts 6483 6761 6i. Comments: D. Impact Justification and Mitigation 1. Avoidance and Minimization 1 a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project. Headwalls are used to retain the road fill, to minimize the length of stream impact. There will be only one access point to the site. A segment of the smaller tributary stream without adjacent wetlands was selected for the crossing point. It is not possible to access the property without crossing a stream. 1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques. Sediment and erosion control measures will be used to avoid or minimize impacts to the stream during construction. 2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State 2a. Does the project require Compensatory Mitigation for ^ Yes ®No impacts to Waters of the U.S. or Waters of the State? 2b. If yes, mitigation is required by (check all that apply): ^DWQ ^ Corps ^ Mitigation bank 2c. If yes, which mitigation option will be used for this project? ^ Payment to in-lieu fee program ^ Permittee Responsible Mitigation 3. Complete if Using a Mitigation Bank 3a. Name of Mitigation Bank: 3b. Credits Purchased (attach receipt and letter) Type Quantity Page 6 of 10 PCN Form -Version 1.3 December 10, 2008 Version 3c. Comments: 4. Complete if Making a Payment to In-lieu Fee Program 4a. Approval letter from in-lieu fee program is attached. ^ Yes 4b. Stream mitigation requested: linear feet 4c. If using stream mitigation, stream temperature: ^ warm ^ cool ^cold 4d. Buffer mitigation requested (DWQ only): square feet 4e. Riparian wetland mitigation requested: acres 4f. Non-riparian wetland mitigation requested: acres 4g. Coastal (tidal) wetland mitigation requested: acres 4h. Comments: 5. Complete if Using a Permittee Responsible Mitigation Plan 5a. If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan. 6. Buffer Mitigation (State Regulated Riparian Buffer Rules) -required by DWQ 6a. Will the project result in an impact within a protected riparian buffer that requires buffer mitigation? ^ Yes ®No 6b. If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation. Calculate the amount of mitigation required. Zone 6c. Reason for impact 6d. Total impact (square feet) Multiplier 6e. Required mitigation (square feet) Zone 1 3 (2 for Catawba) Zone 2 1.5 6f. Total buffer mitigation required: 6g. If buffer mitigation is required, discuss what type of mitigation is proposed (e.g., payment to private mitigation bank, permittee responsible riparian buffer restoration, payment into an approved in-lieu fee fund). 6h. Comments: Page 7 of 10 PCN Form -Version 1.3 December 10, 2008 Version E. Stormwater Management and Diffuse Flow Plan (required by DWQ) 1. Diffuse Flow Plan 1 a. Does the project include or is it adjacent to protected riparian buffers identified ®Yes ^ No within one of the NC Riparian Buffer Protection Rules? 1 b. If yes, then is a diffuse flow plan included? If no, explain why. ® Yes ^ No Comments: 2. Stormwater Mana ement Plan 2a. What is the overall percent imperviousness of this project? 25.3 2b. Does this project require a Stormwater Management Plan? ®Yes ^ No 2c. If this project DOES NOT require a Stormwater Management Plan, explain why: 2d. If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan: Stormwater runoff from the site will be treated using a constructed wetland designed per the current DWQ BMP Manual. Outflow from the basin will be conveyed via a concrete riser structure and outlet barrel, which discharge onto a riprap dissipater, and then flow through a natural vegetated area prior to reaching the existing wetlands at a non erosive velocity. Stormwater management plans are currently being reviewed by the Town of Garner." ® Certified Local Government 2e. Who will be responsible for the review of the Stormwater Management Plan? ^DWQ Stormwater Program ^ DWO 401 Unit 3. Certified Local Government Stormwater Review 3a. In which local government's jurisdiction is this project? Town of Garner ^ Phase II ®NSW 3b. Which of the following locally-implemented Stormwater management programs ^ USMP apply (check all that apply): ^ Water Supply Watershed ^ Other: 3c. Has the approved Stormwater Management Plan with proof of approval been ^Yes ®No attached? 4. DWQ Stormwater Pro ram Review ^ Coastal counties ^ HQW 4a. Which of the following state-implemented Stormwater management programs apply ^ ORW (check all that apply): ^ Session Law 2006-246 ^ Other: 4b. Has the approved Stormwater Management Plan with proof of approval been ^Yes ^ No attached? 5. DW4 401 Unit Stormwater Review 5a. Does the Stormwater Management Plan meet the appropriate requirements? ^Yes ^ No 5b. Have all of the 401 Unit submittal requirements been met? ^Yes ^ No Page 8 of 10 PCN Form -Version 1.3 December 10, 2008 Version F. Supplementary Information 1. Environmental Documentation (DWQ Requirement) 1 a. Does the project involve an expenditure of public (federal/state/local) funds or the ^ Yes ®No use of public (federal/state) land? 1 b. If you answered "yes" to the above, does the project require preparation of an environmental document pursuant to the requirements of the National or State ^ Yes ®No (North Carolina) Environmental Policy Act (NEPA/SEPA)? 1 c. If you answered "yes" to the above, has the document review been finalized by the State Clearing House? (If so, attach a copy of the NEPA or SEPA final approval letter.) ^ Yes ®No Comments: 2. Violations (DWQ Requirement) 2a. Is the site in violation of DWQ Wetland Rules (15A NCAC 2H .0500), Isolated Wetland Rules (15A NCAC 2H .1300), DWQ SurFace Water or Wetland Standards, ^ Yes ®No or Riparian Buffer Rules (15A NCAC 2B .0200)? 2b. Is this an after-the-fact permit application? ^ Yes ®No 2c. If you answered "yes" to one or both of the above questions, provide an explanation of the violation(s): 3. Cumulative Impacts (DWQ Requirement) 3a. Will this project (based on past and reasonably anticipated future impacts) result in ^ Yes ®No additional development, which could impact nearby downstream water quality? 3b. If you answered "yes" to the above, submit a qualitative or quantitative cumulative impact analysis in accordance with the most recent DWQ policy. If you answered "no," provide a short narrative description. 4. Sewage Disposal (DWQ Requirement) 4a. Clearly detail the ultimate treatment methods and disposition (non-discharge or dischar e) of wastewater ene t d f g g ra e rom the proposed project, or available capacity of the subject facility. Wastewater from project will be discharged to public sewer system. Town of Garner wastewater plant has available capacity for this project, per Town Engineer. Page 9 of 10 PCN Form -Version 1.3 December 10, 2008 Version 5. Endangered Species and Designated Critical Habitat (Corps Requirement) 5a. Will this project occur in or near an area with federally protected species or ^ Yes ®No habitat? 5b. Have you checked with the USFWS concerning Endangered Species Act ^ Yes ®No impacts? ^ Raleigh 5c. If yes, indicate the USFWS Field Office you have contacted. ^ Asheville 5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical Habitat? NC Natural Heritage Program Topographic Map Record Search and Virtual Workroom 6. Essential Fish Habitat (Corps Requirement) 6a. Will this project occur in or near an area designated as essential fish habitat? ^ Yes ®No 6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat? NC Essential Fish Habitat is coastal 7. Historic or Prehistoric Cultural Resources (Corps Requirement) 7a. Will this project occur in or near an area that the state, federal or tribal governments have designated as having historic or cultural preservation ^ Yes ®No status (e.g., National Historic Trust designation or properties significant in North Carolina history and archaeology)? 7b. What data sources did you use to determine whether your site would impact historic or archeological resources? NCSHPO - HPOWeb - GIS mapping 8. Flood Zone Designation (Corps Requirement) 8a. Will this project occur in aFEMA-designated 100-year floodplain? ^ Yes ®No 8b. If yes, explain how project meets FEMA requirements: 8c. What source(s) did you use to make the floodplain determination? FIRM Panel 3720172000) & 3720173000) ~'. M~~k i. ~ Trt,~ ~ ~s~l Applicant/Agent's Printed Name Appli ant/Agent's Signature Date (Agent's ature is valid only if an authorization letter from the applicant is provided.) Page 10 of 10 PCN Form -Version 1.3 December 10, 2008 Version ,:J.i _iJ State of North Carolina Department of Environment and Natural Resources Raleigh Regional Office Michael F. Easley, Governor William G. Ross, Secretary 1 •'°~ NCDENR NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY December 5, 2001 Jennifer Burdette Soil and Environmental Consultants, PA 11010 Raven Ridge Road Raleigh, NC 27614 Subject: Neuse River Basin Riparian Buffer Rules NBRRO 01-300 Greenfield SE S&EC Project #: 01-6151 Wake County Dear Ms. Burdette: ,~ On October 9, 2001, I conducted a site visit of the features involved in the above referenced project. It was determined,that channels present on the property and shown on either the Wake County Soil Survey and/or the USGS Garner, NC Quad map are subject to protection under the Neuse River Basin: Nutrient Sensitive Waters Management Strategy; Protection and Maintenance of Existing Riparian Areas, Administrative Code T15A:02B.0233 (NCAC 0233). The specific portions of the channels subject to the buffer rules include Feature D (below flag #755), Feature E, Feature G (below flag #1001), Feature J (below flag #958), Feature K (below flag #T107), Feature M, and White Oak Creek with its associated open water from former beaver impoundments, which are shown on the attached USGS Garner, NC Quad map (Figure 1) and/or Wake County Soil Survey Map (Figure 2). Features marked A, B, C, F, G (between flag #1027 and 1027A), H, I, and L are not subject to the Neuse Riparian Rule. This office has assigned the reference number of NBRRO-01-300 to this project. Thank you for your attention to this matter and if this Office can be of any assistance or if you have any additional questions concerning this letter, please do not hesitate to contact me at 571-4700 ext. 237. Sincerely, 1 2~ ~ Charles Brown Environmental Specialist cc: John Dorney - DWQ ~neusbuf. let/nbr013 OO.let 1628 Mail Service Center, Raleigh, NC 27699-1628 Telephone (919}571-4700 FAX (919)571-4718 An Equal Opportunity Affirmative Action Employer 50% recycled/10%post-consumer paper 1 .~ ~q 400 A \ 1 V ~}~ ~~_ c • // 111 ~~ -, So,~ , f... - ~ ~~ 3 O _ ~___ ___ _ ==0 ~3. O 3~ ~, o _ _ 'o=: ~: °' .v ~~ ~~ .~ __ ~ ~' ~ .;_, . ~ Q. 'o ~~-a`: - -_ - 3 _a Y \ i 5 ~u n •~ u .I S ~ ~ •il~ ~ D '•3 ~,/~ ' lit l l t ~~~~ ~'• ProJed is Sale: 018151 1' =2000' Fi 1 Project Mgr.: JB Date: N3/Ot gure - USGS Quad Greenfield Southeast Bank of America Garner, Wake County, NC C3ARNER, N. C. NE/4 GARNER I5' QUADRANGLE 35078-F5-TF-024 7964 PHO70REVISED '1987 DMA 5255 11 NE-SERIES V842 Soil & Environmental Consultants, Inc. 11010 Raven Ridge Rd.~ Raleigh, NC 27614 (919) 846-5900 • (919) 846-9467 Web Page: www.SandEC.com r ~~' \~ ce• •ter ~~~~~.: ProJed t~: Scale: 01-6151 1" =1320' Mgr.: JB ~ 413101 Figure 2 -Soil Survey Greer~ield Southeast Bank of America Gamer, Wake County, NC Soil & Environmental Consultants, Inc. 11010 Raven Ridge Rd.• Raleigh, NC 27614 (919) 846-5900 • (919} 846-9467 Web Page: www.SandEC.com NdRko oI-3oo y _.. '~`•~ I ~)- ,": ,`''~.~;,`.~ ~"'~~ ~" ~ Boil 8z Environmental Caasaitants PA • •~~ 1 ' 1 ~ _ ~~~ ~ ~ ~ ~ • J 11010 Raven Ridge Road, Raleigh, North Carolina 27614 1 ;~\; ~ ..t~ r ~ ~! ~'~~ ~ , ' -. ``~~, Phone: (919) 84b-5900 - Fax• (9I9) 846.9467 _, f `` 1~.;,.~ ~ ~ 1 -- ., ~k~~~~.. ~. ~~a~~~J ~,~ ~ i ~ _ Project: Greenfield SE/Proiect #• 01-6151 :• ~ %. Date: ] ~' `~ ~~' • '~` ~ . ,~~. r `"'~- r^-i ' ~ = ' 10 O 1 RGY i Su( i t~,2$lp . ~ ~ i s~ l .~ / . . ~~~ t`~' ~'` : ~ z ,'~ r r ` j Preliminary Buffer Approximation _ ~• ~ ~ ~ -q"'j' ~ Z'+. ~ ~- -` 1i ~\' ~ 1 ~ -- Suitable for Preliminary Plarmiag Only - ~~~~\~` :: , / ' `. ~'°c,y `~ ;.~~~ • 1 / ,1 ~ ~ ~ ~ '~ ShFx reserves the right to modify thin map hued orr mote fieldvroric, . ""-1 , ~ ~ : ~ r` ~:; ti _ ~ ~ li ~~y, . .. ,,' survryed delineations and any other additional information. "~ ~ `~~ `/ f ~ . ~ . -~~~o a * - <' - / --. ., Approximations wee mapped using topogntphie maps and ground truthing 1! c I ~ '`^ If these aras are to be used, th ~ ••: - ~ `~~\ 'l ~~ ~ .. -: `fit . ry must be app,oved and ~'`" J ~` ~~-C ` ~~ ~~..ay+'r'" - rt.~ ~:_ l _ - permitted by the NC Division orp+ater Quality. .._ ,~,~!~ _ ' .~ _ ,fit., .; j;..:' .t : _ 1:?'~ - `.`/~! ~~ ~~ '1 ., ~'-_.~.' '^_: it Ii 1. !r•~t_~ ~rl. ~ (t r ` :i'F:, •1. 4 ~~ ~ ~. t rF ` ~ l I ~-, t~~ .; ~: ~`':`, yr` ~. t..._I"?`.., LEGEND N S -' NOT S III f e C7 "~"b ~II Gf/JG F.jf/f~G~' ~V~C,f .~ ~_'~• L~ ~" '~-~'~ _ ' `'tom^+ J ~ ~ ~~ ~i `~ ~~ "_ _ • - . ~.• , • ~ WATERS OF THE US SUBJECT TO THE REUSE BUFFER RULES : ~~ - •'' ' This determination most be confirmed b the IYCDWQ] ' ,~`• ~.•' MARGINAL WATERS OF THE U9 -MAY BE SUBJECT TO HEU$E BUFFER RULES •','`. ~ ' '' ;~';;~: r •' (SbEC does not believe these channels are snb ect to the Nenae Buffer Rnies; however, - . this determination mnst be"confirmed by the NCDWQ.] - i Maps and databases ore public information supplied by various goverrunent agencies. The author and/or Ma pVl1 E seller of the software program are in no way responsible or liabie for the information depicted herein. Inquiries concerning the dots should be 0 625 1250 1875 2500 8:2: directed to the appropriate government agency. APR 3, 200 Scale in Feet ~'3'~,. Auburn ~$~~~$ ~q 4 ~~d _~ ~. S Salt Hill Rc~, .:,~ ~~v e~ '~. "s O fix' p4 Rd -~ Nn /V of ~~ 4 ~_, ~:1i1t _ ~_ ~70 ~ m v~,~ `H . f ' \i°o,~ ~~l 8r[cksteeE Ln ,.4~ a~ ~~ e ~ _ y~j ,` ~,~ ~~~ EF ~~' fern aaia Ur ~~`~ c .a ; ~ ~ ,i ~~ ~~ 7wam Qr ti._.~ Cabin Vigo Ln ~~ra><egic aenavior vlClnlty map 0 800 1600 3200 Feet ~~~7e~ ~ pF 4 ~ ~~O Z ~~~ G~~~;" WAKE COUNTY ~::,~r~, ~.~~~~„~~ N, ` ` `~ ~' ~ ER ~ ~ CF+ == Ih[F ,~ ,, <_'~~ ,:; ~~`.. i ~' _ __~' ? , (,.. ~~ ~ f ?1~., ~ . .; ,, ~~ ~ ~~/. 1;~~.~, ?rr `i _ {, \\ ~%1 ~.-._ ,~ v ~\~~ \;. ~_~(: e, . ~ ~ ~, ~i ~ ~ ~- ~ ~~ ~ ~~ ~~ ~~~ ,~. t as ~' ~ ~- ~ ~~ ~ ,~ ( ~. ~~ 1` l" .-,1 r ~ Cc~ ~--, 11'x.!" ~~ ,~ 1 ~~ ', _ )`~ ~.r~=,~ /~~~ ~~r ~ ~ Yi l ~~ .. ' ! ( ~~ ~~ lr ~ . ~ '~ \~ Scale: 1:24,000 ~~-'~'~ ~ ~ '~` Dated 1993 r ~~,- ;i ~ ~~` ~~ ~,, ~~ 1.. ~ ~ ~~ ~~ ~~' ~~-~ ~ 1` ' ~~~~ Strategic Behavior ~- Wit, ~~ - ~ S f 14 ;' ' , Greenfield South ,, '~`~ ~-'~° - ~` \::,_ 3200 Waterfield Drive, Garner, NC ,~- ~ ,_ WAKE COUNTY, NORTH CAROLINA - SHEET NUMBED Greenfield 40 Associates, LLC 901 Old Knight Road Knightdale, NC 27545 (919) 266-5992 10 April 2011 Mr. Jamie Shern US Army Corps of Engineers Raleigh Regulatory Field Office 3331 Heritage Trade Drive, Suite 105 Wake Forest, North Carolina 27587 Dear Mr. Shern: The undersigned,, registered property owners ofi Lot 1 at Greenfield South Business Park, (per legal description provided below), do hereby au#horize J. Mack Little, of Little & Little Landscape Architects PLLC, to act on our behalf and take all actions necessary for the processing, issuance and acceptance of this permit or certification and any and all standard and special conditions attached. We hereby certify the information submitted in this application is true and accurate to the best of our knowledge. Sincerely, Douglas G. Watson pc: Mack Little, Little & Little PROPERTY LEGAL DESCRIPTION: PARCEL DESIGNATION: Lot 1 Greenfield South BM2009-00132 PARCEL ID: 1730023191 STREET ADDRESS: 3200 Waterfield Drive, Garner, NC Property Owner(s): Greenfield 40 Assoc LLC ,Attention: Doug Watson Property Owner Address: 901 Old Knight Road, Knightdale, NC 27545-9065 Property Owner Telephone #;919-266-5992 "WITHERS c~~~: RAVEIVEL ENGINEERS I PLANNERS I SURVEYORS MEMORANDUM TO: Lia Gilleski, NCDWQ FROM: Hunter Freeman CC: Amy Mackintosh DATE: May 11, 2011 SUBJECT: Strategic Behavior, Garner, NC - Stormwater Calculations ,~ r -~ - .- _ti ~ SEAI- =_ r_ 028342 "" a ~~ ~i~~'•~ ~~G.1 N;~ti4` ~~ti Strategic Behavior is a proposed commercial development project within the Neuse River Basin in Garner, NC. There is one driveway crossing of a stream buffer proposed for the site. Additionally, there in one constructed wetland BMP, currently under review by the Town. Calculations are provided herein to justify the culvert sizing for the driveway cross pipe, and velocity calculations for the wetland outlet are provided to justify "non-erosive" velocity at the edge of the wetlands downstream of the outlet. In summary, there is one 48" RCP culvert proposed. The inverts of the culvert are buried for aquatic passage per current NCDWQ and US ACOE recommendations. Details are provided on the plan sheets accompanying this submittal. The culvert was modeled as a 42" RCP to represent the effects of lost cross sectional area due to the Inver burial. Additionally, inverts were adjusted to reflect final stream bed elevations rather than culvert installation elevations. The calculations, therefore, reflect the actual anticipated water surface elevations for each storm event. Table 1 Inc{udes a summary of design information for the driveway culvert, Tabe 2 includes a summary of the velocity calculations at the end of the dissipater pad downstream of the constructed wetland.. TABLE 1 -DRIVEWAY CULVERT DESIGN SUMMARY • 48" Diameter RCP Q 0.5% slope • DA = 37 acres • Inverts buried for aquatic passage • Composite C = 0.50 • Roadway Elev. (overtopping) _ +/-278.00 • Tc = 30 min • Stream Bed Elev. _ +J- 265.10 (upstream) Peak Flow Peak Water Freeboard Storm Event (cfs) Surface Elevation (ft) HW/D (ft) 10-Year 69.18 269.55 8.45 1.27 25-Year 80.56 270.23 7.77 1.46 100-Year 98.46 271.60 6.40 1.86 111 MacKenan Drive I Cary, NC 27511 ~ tel.: 919.469.3340 I fax: 919.467-6008 ~ www.withersravenel.com I License No. C-0832 1410 Commonwealth Drive ~ Suite 101 ~ Wilmington, NC 28403 ~ tel: 910.256.4277 ~ fax: 910.256.2584 416 D Gallimore Dairy Road ~ Greensboro, NC 27409 ~ tel: 336.993.5504 (fax: 919.467.6008 TABLE 2 -WETLAND OUTLET SUMMARY • Outlet Pisa - 24° RCP Peak Inflow to peak Outflow Stope Velocity Storm Event BMP (cfs) (ft/ft) (ft/sec) (cfs) 10-Year 29.48 3.93 0.04 1.78 Detailed calculations are attached. ili MacKenan Drive Cary, North Carolina 27511 te1:919.469.334o fax:9i9.467.6008 www.withersravenel.com DRIVEWAY CULVERT CALCULATIONS D RAI NAG E AREA MAP 3.~.,- ~ ,~ fem. '} r- ~ ~\_~ l%~~' ~. t. J~ ~ ~~,~ J..l- ,` 1 tt ,~: f--.. -- ~ .~\ °y'i ~~i~ ~ ~ ~. ~ y ; t _ 1 ~ ~~, ' . ,i, -;:-° << _ ~'~ ~~~ '~ti\ t ~7~~;;~ 'i, __ ~~, .;tti' ~ '~ ~~a ~~~~ ~ ~ ~- ~- `' ,` `` ~ J-___ -' ~~~` , Silt` 1 ~ ~ t ~ i itl~p` .rt j ~~rlf' i 1 's ly /1 ~~^~r ~L` `1 _~ ~ht -~' y ~~s ~ ~~~~i~~~~~ 1 ~ ~~ ~ ~~~ ~ ~ 1~ ,. 1 /'4 t ~ •~ ~~ 44, + 2.6~t .-~, ~ I 1 '%~1J ~ ,1: r ,rr ~ ~ ~ ~f ~~ ~ l~ ~If rl~f~ ~ ~ '~~,~r~ ~ ,F--: r. ,~ ,` _ _ ~. - r/c~ ~-_ - -~`` ~~~ - " , ~ t~o~--~ S I ~~ ~ ~ li ~~ ~~~~ - ~-- yj. ;. ~l ~~~~'~ ~~ ~ ~ ,~ ~ ,, `~~`~ ~~~ { ~ ~ ~ ,~~. ,;~ 1~ ,`~ ~ ,; ~'~ ~i~~a ~ ,,p f ~,~ '~~ ~k STRATEGIC BEHAVIOR DA MAP 0 200 400 800 Feet -i ~~ ~ e'L~ j `+'~: ~'~`i ~f~J~ ~ ~~ # C_ ~ ~ ~~~k, ~~; ~ 1 ~~ _ ~~. Lr t ~ ~ i J ~((( /!~ / ~ ~ ~ ~ ~~ li ~' ~~ ~~ ~~ i ~ ~ ~ ~~ trlti:~?~~` ~h5 1 ri . `'-'1N~teftleld~Uf iM1 ='' ..~80. ~y CF r fU~ ~~~~~ COUNTY N(1R1 ii i r n~~i ~ Na Culvert Designer/Analyzer Report Driveway Buffer ~~~~ Anatysls Component Storm Event Design Discharge 69.18 cfs Peak Discharge Method: Rational Design Return Period 10 year Check Retum Period 25 year D i n Peak Discha a Check Peak Discharge 80.56 cfs w1~ ota rea 37.00 acres Time of Concentration 30.00 min Rational Coefficient 0.50 Intensity 4.32 in/hr Area Subwatershed(acres) C 1 37.00 0.50 Tailwater Conditions: Constant Tailwater Tailwater Elevation N/A ft Name Description Discharge HW Elev. Velocity Culvert-1 1-42 inch Circular 69,1'8 cfs 269.55 ft 9.00 ft/s Weir Not Considered N/A N/A N/A Title: Strategic Behavior Driveway Culvert Project Engineer: hfreeman k:l.,\h-h\strategic.cvm Withers 8 Ravenel Engineering CulvertMaster v3.1 [03.01.010.00] 05/11/11 07:27:23a~@ntley Systems, Inc. Haestad Methods Solution Center Watertown, CT 06795 USA +1-203-755-1666 Page 1 of 2 Culvert Designer/Analyzer Report Driveway Buffer Component:Culvert-1 Culvert Summary Computed Headwater Elev~ Inlet Control HW Elev. Outlet Control HW Elev. Headwater Depth/Height 269.55 ft 269.50 ft 269.55 ft 1.27 Discharge Tailwater Elevation Control Type 69.18 cfs N/A ft Outlet Control Grades Upstream Invert Length 265.10 ft 60.00 ft Downstream Invert Constructed Slope 264.80 ft 0.005000 ft/ft Hydraulic Profile Profile Slope Type Flow Regime Velocity Downstream M2 Mild Subcritical 9,00 ft!s Depth, Downstream Normal Depth Critical Depth Critical Slope 2.61 ft 2.79 ft 2.61 ft 0.005780 fflft Section Section Shape Section Material Section Size Number Sections Circular Concrete 42 inch 1 Mannings Coefficient Span Rise 0.013 3.50 ft 3.50 ft Outlet Control Properties Outlet Control HW Elev. Ke 269.55 ft 0.50 Upstream Velocity Head Entrance Loss 1.13 ft 0.56 ft Inlet Control Properties Inlet Control HW Elev. 269.50 ft Inlet Type Square edgewlheadwall K 0.00980 M 2.00000 C 0.03980 y 0.67000 Flow Control Area Full HDS 5 Chart HDS 5 Scale Equation Form Transition 9.6 ft2 1 1 1 Title: Strategic Behavior Driveway Culvert Project Engineer: hfreeman k:\...\h-h\strategic.cvm Withers 8 Ravenel Engineering CulvertMaster v3.1 [03.01.010.00] 05/11 /11 07:27:23r1~ntley Systems, Inc. Haestad Methods Solution Center Watertown, CT 06795 USA +1-203-755-1666 Page 2 of 2 Culvert DesignerlAnalyzer Report Driveway Buffer ~,~t Analysis Component Storm Event Check Discharge 80.56 cfs Peak Discharge Method: Rational _ Design Return Period . _. 10 year Check Return Period 25 year Design Peak Discharge 69.18 cfs Check P 80.56 cfs Total Area 37.00 acres ime of Concentration 30.0 min Rational Coefficient 0.50 Intensity 4.32 in/hr Area Subwatershed(acres) C 1 37.00 0.50 Tailwater Conditions: Constant Tailwater Tailwater Elevation N/A ft Name Description Discharge HW Elev. Velocity Culvert-1 1-42 inch Circular 80.56 cfs 270.23 ft 9.,75 ft/s Weir Not Considered N/A N/A N/A Title: Strategic Behavior Driveway Culvert Project Engineer: hfreeman k:\...\h-h\strategic.cvm Withers 8 Ravenel Engineering CulvertMaster v3.1 [03.01.010.00] 05/17/11 07:27:45G$Antley Systems, Inc. Haestad Methods Solution Center Watertown, CT 06795 USA +1-203-755-1666 Page 1 of 2 Culvert Designer/Analyzer Report Driveway Buffer Component:Culvert-1 Culvert Summary Computed Headwater Elev~ 270.23 ft Discharge 80.56 cfs Inlet Control HW Elev. 270.23 ft Tailwater Elevation NJA ft Outlet Control HW Elev. 270.06 ft Control Type Inlet Control Headwater Depth/Height 1.46 Grades Upstream Invert 265.10 ft Downstream Invert 264,80 ft Length 60.00 ft Constructed Slope 0.005000 ft/ft Hydraulic Profile Profile M2 Depth, Downstream 2.80 ft 51ope Type Mild Normal Depth N!A ft Flow Regime Subcritical Critical Depth 2.80 ft Velocity Downstream 9.75 ft/s Critical Slope 0.006695 ft/ft Section Section Shape Circular Mannings Coefficient 0.013 Section Material Concrete Span 3.50 ft Section Size 42 inch Rise 3.50 ft Number Sections 1 Outlet Control Properties ' Outlet Control HW Elev. 270.06 ft Upstream Velocity Head 1.24 ft Ke 0.50 Entrance Loss 0.62 ft Inlet Control Properties Inlet Control HW Elev. 270.23 ft Flow Control Submerged Inlet Type Square edge w/headwall Area Full 9.6 ft2 K 0.00980 HDS 5 Chart 1 M 2.00000 HDS 5 Scale 1 C 0.03980 Equation Form 1 y 0.67000 Project Engineer: hfreeman Title: Strategic Behavior Driveway Culvert CulvertMaster v3.1 [03.01.010.00] k:\...1h-h\strategic.cvm Withers & Ravenel Engineering 05!11/11 07:27:45ri~@ntley Systems, Inc. Haestad Methods Solution Center Watertown, CT 06795 USA +1-203-755-1666 Page 2 of 2 Culvert DesignerlAnalyzer Report Driveway Buffer ~,~~ :~- Analysis Component Storm Event Check Discharge 98.46 cfs Peak Discharge Method: Rational _ , Design Return Period 10 year Check Return Period 100 year Design Peak Discharge 69.18 cfs Ch e_----_.____8.9.5:.-CIS: , ~--s Total Area 37.00 acres ime of Concentration .. . 30.00 min Rational Coefficient 0.50 Intensity 5,28 inlhr Area Subwatershed(acres} C 1 37.00 0.50 Tailwater Conditions: Constant Tailwater Tailwater Elevation N/A ft Name Description Discharge HW Elev, Velocity Culvert-1 1-42 inch Circular 98.46 cfs 271.60 ft 11.06 ft/s Weir Not Considered N/A N/A N/A Title: Strategic Behavior Driveway Culvert Project Engineer: hfreeman k:\...\h-h\strategic.cvm Withers & Ravenel Engineering CuivertMaster v3.1 [03.01.010.00) 05/11/11 07:28:08cEa3@ntley Systems, Inc. Haestad Methods Solution Center Watertown, CT 06795 USA +1-203-755-7666 Page 1 of 2 Culvert Designer/Analyzer Report Driveway Buffer Component:Culvert-1 Culvert Summary Computed Headwater Elevt Inlet Control HW Elev. Outlet Control HW Elev. Headwater Dep#h/Height 271.60 ft 271.60 ft 271.09 ft 1.86 Discharge Tailwater Elevation Control Type 98.46 cfs NIA ft Inlet Control Grades Upstream Invert Length 265.10 ft 60.00 ft Downstream Invert Constructed Slope 264.80 ft 0.005000 ft/ft Hydraulic Profile Profile CompositeM2PressureProfile Slope Type Mild Flow Regime Subcritical Velocity Downstream 11.06 ft/s Depth, Downstream Normal Depth Critical Depth Critical Slope 3.05 ft N/A ft 3.05 ft 0.008715 ft/ft Section Section Shape Section Material Section Size Number Sections Circular Concrete 42 inch 1 Mannings Coefficient Span Rise 0.013 3.50 ft 3.50 ft Outlet Control Properties Outlet Control HW Elev. Ke 271.09 ft 0.50 Upstream Velocity Head Entrance Loss 1.63 ft 0.81 ft Inlet Control Properties Inlet Control HW Elev. 271.60 ft Inlet Type Square edge w/headwall K 0.00980 M 2.00000 C 0.03980 Y 0.67000 Flow Control Area Futl HDS 5 Chart HDS 5 Scale Equation Form Submerged 9,6 ft2 1 1 1 Title: Strategic Behavior Driveway Culvert Project Engineer: hfreeman k:\...\h-h\strategic.cvm Withers & Ravenel Engineering CulvertMaster v3.1 [03.01.010.00] 05!11/11 07:28:08cf~Antley Systems, Inc. Haestad Methods Solution Center Watertown, CT 06795 USA +1-203-755-1666 Page 2 of 2 'WETLAND OUTLET VELOCITY CALCULATIONS IA~effand nuftef Velocify Calcs Project Description Friction Methad Manning Formula Salve For NormaE Depth Input Data Roughness Coefficient 0.035 Channel Slope 0.03500 ft/ft Left Side Slope 3.00 ftlft (H:V) Right Side Slope 3.00 ft/ft (H:V) Bgttom Width 20.00 ft Discharge 3.93 ft'Ts Results Normal Depth 0.11 ft Flow Area 2.20 ft= Wetted Perimeter 20.69 ft Top Width 20.65 ft Critical Depth 0.11 ft Critical Slope 0.03806 tt/ft Velocity i .78 ftts Velocity Head 0.05 ft Specific Energy 0.16 ft Froude Number 0:96 Flow'fype Subcritical GVF Input Data pawnstream Depth 0.00 ft Lengkh O.OD ft Number Of Steps 0 GVF Output Data Upstream Depth O.DO ft Profrle Desadption Profile Headloss 0.00 ft Downstream Velocity Infinity ft/s Upstream Velocity Infinity ftls Normal i3epth 0.11 ft Critical Depth 0.11 ft Channel Slope 0.03500 {t/ft Critical Slope 0.03806 fttft Bentley Systems, Inc. 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