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HomeMy WebLinkAbout20071309 Ver 1_401 Application_20070707~'~~a~ yZoGil~, ~..~.. ~ 7- 1 308 LANDSCAPE ARCf11TECTURf= LAND PLANNING July 24, 2007 Division of Water Quality 401 Wetlands Unit 1650 Mail Center Raleigh, NC 27699 PAYMENT RECrEIVED Re: Village at Bradley Branch -Stream Culvert Dear Sir or Madem, Pursuant to the requirements of GC 3402 and based upon Nationwide Permit 18, issued by the US Army Corp of Engineers for the referenced project, we respectfully submit applications and associated documentation for your review and written concurrence. Please note, this is a planned unit development which was approved by the County and upon which construction began nearly a year ago. Mass grading efforts are nearly completed and installation of site utilities and infrastructure are progressing. Impacts to the existing small stream were avoided during planning and permitting phases, however, during construction staking efforts a conflict between the stream and proposed improvements was discovered. Subsequent detailed topographic information of the stream highlighted this conflict. The Nationwide 404 permit obtained from the Army Corps and this 401 certification request to pipe 100' of this stream is intended to responsibly resolve this conflict while preserving the integrity of the development. We certainly appreciate your consideration of this request and look forward to hearing from you. In the meantime, should you have any questions, comments or need any additional information please don't hesitate to contact our Waynesville Office. Respectfully, Broadbooks Associates, P.A. for John A. Broadbooks, President R. Daniel Hyatt, RIA, ASLA Partner Cc: Bradley Branch Developers LLC File ~~ f '` ,,1J'~f, .. _ - '?- L Broadbooks Associates, P.A. ^ 49z S. Main Street, Suite B ^ Waynesville NC 28786 ^ (828) 456-8558 Office Use Only: Form Version March OS USAGE Action ID No. DW o (If any particulaz item is not applicable to this projec , "Not Applicable" or "N/A".) I. Processing RECEIVED 07-1309 1. Check all of the approval(s) requested for this project: X Section 404 Permit Riparian or Watershed Buffer Rules Section 10 Permit Isolated Wetland Permit from DWQ X 401 Water Quality Certification Express 401 Water Quality Certification 2. Nationwide, Regional or General Permit Number(s) Requested: 18 3. If this notification is solely a courtesy copy because written approval for the 401 Certification is not required, check here: 4. If payment into the North Carolina Ecosystem Enhancement Program (NCEEP) is proposed for mitigation of impacts, attach the acceptance letter from NCEEP, complete section VIII, and check here: 5. If your project is located in any of North Cazolina's twenty coastal counties (listed on page 4), and the project is within a North Carolina Division of Coastal Management Area of Environmental Concern (see the top of page 2 for further details), check here: _a .. _ ._ ,. _... 1 II. Applicant Information ~ ~ , - ' - ' ~~~~~~~ 1. Owner/A licant Informati ~ - ` ` ' pP on Name: Bradle Branch Develo ers LLC Mailing Address: 3871C Sweeten Creek Road ' Arden NC 28704 Telephone Number: 828-684-8800 Fax Number: 828-684-8864 E-mail Address: 2. Agent/Consultant Information (A signed and dated copy of the Agent Authorization letter must be attached if the Agent has signatory authority for the owner/applicant.) Name: R Daniel H att RLA Company Affiliation: Broadbooks Associates P.A. Mailing Address: 492 South Main Street Wa nesville NC 28786 Telephone Number: 828-456-8558 Fax Number: 828-456-8558 E-mail Address: rdhyatt(a~broadbooksana com III. Project Information Attach a vicinity map cleazly showing the location of the property with respect to local landmazks such as towns, rivers, and roads. Also provide a detailed site plan showing property boundaries and development plans in relation to surrounding properties. Both the vicinity map and site plan must include a scale and north arrow. The specific footprints of all buildings, impervious surfaces, or other facilities must be included. If possible, the maps and plans should include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion, so long as the property is cleazly defined. For administrative and distribution purposes, the USACE requires information to be submitted on sheets no lazger than 11 by 17-inch format; however, DWQ may accept paperwork of any size. DWQ prefers full-size construction drawings rather than a sequential sheet version of the full-size plans. If full-size plans are reduced to a small scale such that the final version is illegible, the applicant will be informed that the project has been placed on hold until decipherable maps are provided. 1. Name of project: The Village at Bradley Branch 2. T.I.P. Project Number or State Project Number (NCDOT Only): NA 3. Property Identification Number (Tax PIN): _ 9643,02-79-5378 4. Location County: Buncombe Nearest Town: Asheville Subdivision name (include phase/lot number): Village at Bradley Branch 5. Directions to site (include road numbers/names, landmarks, etc.): From NC 280, Airport Road. turn north onto SR 3527. Bradley Branch road; continue north o 35 mi and turn left onto SR 3528 and continue to site at end of road. 6. Site coordinates (For linear projects, such as a road or utility line, attach a sheet that separately lists the coordinates for each crossing of a distinct waterbody.) Decimal Degrees (6 digits minimum): 35.4541 °N -82.5333 °W 7. Property size (acres): 30.22 acres 8. Name of nearest receiving body of water: Unnamed tributary of French Broad River 9. River Basin: French Broad (Note -this must be one of North Carolina's seventeen designated major river basins. The River Basin map is available at ht~://h2o.enr.state.~c.us/admii~/maps/.) 10. Describe the existing conditions on the site and general land use in the vicinity of the project at the time of this application: The site is a Buncombe County-approved planned unit development that was rough graded by a previous owner The new development Ulan requires installahon of a culvert to allow earthwork for an efficient lot layout 11. Describe the overall project in detail, including the type of equipment to be used: The site is being prepared with conventional eguipment• excavators. dozers. loaders, and compactors 12. Explain the purpose of the proposed work: The culvert will be installed to facilitate placement of an embankment and subsequent building pad. IV. Prior Project History If jurisdictional determinations and/or permits have been requested and/or obtained for this project (including all prior phases of the same subdivision) in the past, please explain. Include the USACE Action ID Number, DWQ Project Number, application date, and date permits and certifications were issued or withdrawn. Provide photocopies of previously issued permits, certifications or other useful information. Describe previously approved wetland, stream and buffer impacts, along with associated mitigation (where applicable). If this is a NCDOT project, list and describe permits issued for prior segments of the same T.I.P. project, along with construction schedules. No Hrevious USACE or DWO determinations and/or Hermits have been requested An erosion and sedimentation control Hermit has been issued by Buncombe County. V. VI. Future Project Plans Are any future permit requests anticipated for this project? If so, describe the anticipated work, and provide justification for the exclusion of this work from the current application. No future requests are anticiuated because the current Hlans are for comalete develoament of the site. Proposed Impacts to Waters of the United States/Waters of the State It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to wetlands, open water, and stream channels associated with the project. Each impact must be listed separately in the tables below (e.g., culvert installation should be listed separately from riprap dissipater pads). Be sure to indicate if an impact is temporary. All proposed impacts, permanent and temporary, must be listed, and must be labeled and cleazly identifiable on an accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial) should be shown on a delineation map, whether or not impacts are proposed to these systems. Wetland and stream evaluation and delineation forms should be included as appropriate. Photographs may be included at the applicant's discretion. If this proposed impact is strictly for wetland or stream mitigation, list and describe the impact in Section VIII below. If additional space is needed for listing or description, please attach a sepazate sheet. 1. Provide a written description of the proposed impacts: One hundred feet of culvert will be Hlaced near an existing share switchback and backfilled. The comHleted earth embankment will be stabilized with fabric. seeded and mulched to establish Hermanent vegetation 2. Individually list wetland impacts. Types of impacts include, but are not limited to mechanized clearing, grading, fill, excavation, flooding, ditching/drainage, etc. For dams, separately list impacts due to both structure and flnnrlino Wetland Impact Site Number (indicate on map) Type of Impact Type of Wetland (e.g., forested, marsh, herbaceous, bog, etc.) Located within 100-year Floodplain es/no) Distance to Neazest Stream (linear feet) Area of Impact (acres) NA Total Wetland Impact (acres) 3. List the total acreage (estimated) of all existing wetlands on the property: 4. Individually list all intermittent and perennial impacts. Stream impacts include, but aze n~ construction, flooding, relocation, stabilization stream impacts. Be sure to identify temporary ~t limited to placement of fill or culverts, dam activities (e.g., cement walls, rip-rap, crib walls, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is proposed, plans and profiles showing the lineaz footprint for both the original and relocated streams must be included. To calculate acreage, multiply leneth X wdth_ then divide by 4'~_5En Stream Impact Number indicate on ma Stream Name Type of Impact Perennial or Intermittent? Average Stream Width Before Im act Impact Length (linear feet) Area of Impact (acres) LOCATION A U.T. Culvert p 3-7 feet 100 Total Stream Impact (by length and acreage) 5. Individually list all open water impacts (including lakes, ponds, estuazies, sounds, Atlantic Ocean and any other water of the U.S.). Open water impacts include, but are not limited to fill, excavation, dredaine, floodin~_ drainage_ hnikhearla Pte Open Water Impact Site Number Name of Waterbody .., Type of Waterbody Area of indicate on ma (if applicable) Type of Impact (lake, pond, estuary, sound, bay, Impact ocean, etc.) (acres) NA Total Open Water Impact (acres) 6. List the cumulative im act to all Waters of the U S resultin from the ro'e t• Stream Impact (acres): c Wetland Impact (acres): Open Water Impact (acres): Total Impact to Waters of the U.S. (acres) Total Stream Impact (linear feet): 100 7. Isolated Waters Do any isolated waters exist on the property? Yes X No Describe all impacts to isolated waters, and include the type of water (wetland or stream) and the size of the proposed impact (acres or linear feet). Please note that this section only applies to waters that have specifically been determined to be isolated by the USACE. 8. Pond Creation If construction of a pond is proposed, associated wetland and stream impacts should be included above in the wetland and stream impact sections. Also, the proposed pond should be described here and illustrated on any maps included with this application. Pond to be created in (check all that apply): uplands stream wetlands Describe the method of construction (e.g., dam/embankment, excavation, installation of draw-down valve or spillway, etc.): Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond, local stormwater requirement, etc.): Current land use in the vicinity of the pond: Size of watershed draining to pond: Expected pond surface area: VII. Impact Justification (Avoidance and Minimization) Specifically describe measures taken to avoid the proposed impacts. It may be useful to provide information related to site constraints such as topography, building ordinances, accessibility, and financial viability of the project. The applicant may attach drawings of alternative, lower-impact site layouts, and explain why these design options were not feasible. Also discuss how impacts were minimized once the desired site plan was developed. If applicable, discuss construction techniques to be followed during construction to reduce impacts. (1) Reduction of the number of lots was considered. but the reduced income adversely affected the financial viability of the uroiect (2) Prue will be laid m 20-foot increments from downstream to up stream (3) Baclcfill will be prevented from reachm~ the stream by the use of rip rau and filter fabric at the wipe ends VIII. Mitigation DWQ - In accordance with 15A NCAC 2H .0500, mitigation may be required by the NC Division of Water Quality for projects involving greater than or equal to one acre of impacts to freshwater wetlands or greater than or equal to 150 linear feet of total impacts to perennial streams. USACE - In accordance with the Final Notice of Issuance and Modification of Nationwide Permits, published in the Federal Register on January 15, 2002, mitigation will be required when necessary to ensure that adverse effects to the aquatic environment are minimal. Factors including size and type of proposed impact and function and relative value of the impacted aquatic resource will be considered in determining acceptability of appropriate and practicable mitigation as proposed. Examples of mitigation that may be appropriate and practicable include, but are not limited to: reducing the size of the project; establishing and maintaining wetland and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of aquatic resource functions and values by creating, restoring, enhancing, or preserving similar functions and values, preferable in the same watershed. If mitigation is required for this project, a copy of the mitigation plan must be attached in order for USACE or DWQ to consider the application complete for processing. Any application lacking a required mitigation plan or NCEEP concurrence shall be placed on hold as incomplete. An applicant may also choose to review the current guidelines for stream restoration in DWQ's Draft Technical Guide for Stream Work in North Carolina, available at http://h2o.enr.state.nc.usMcwetlands/Stri~gidc; html. 1. Provide a brief description of the proposed mitigation plan. The description should provide as much information as possible, including, but not limited to: site location (attach directions and/or map, if offsite), affected stream and river basin, type and amount (acreage/linear feet) of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view, preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a description of the current site conditions and proposed method of construction. Please attach a separate sheet if more space is needed. NA 2. Mitigation may also be made by payment into the North Carolina Ecosystem Enhancement Program (NCEEP). Please note it is the applicant's responsibility to contact the NCEEP at (919) 715-0476 to determine availability, and written approval from the NCEEP indicating that they are will to accept payment for the mitigation must be attached to this form. For additional information regarding the application process for the NCEEP, check the NCEEP website at http://h2o.enr.state.nc.us/wrp/index htm. If use of the NCEEP is proposed, please check the appropriate box on page five and provide the following information: Amount of stream mitigation requested (linear feet): NA Amount of buffer mitigation requested (square feet): Amount of Riparian wetland mitigation requested (acres): Amount ofNon-riparian wetland mitigation requested (acres): Amount of Coastal wetland mitigation requested (acres): I. Environmental Documentation (required by DWQ) 1. Does the project involve an expenditure of public (federal/state/local) funds or the use of public (federal/state) land? Yes No X 2. If yes, does the project require preparation of an environmental document pursuant to the requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)? Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA coordinator at (919) 733-5083 to review current thresholds for environmental documentation. Yes No 3. If yes, has the document review been finalized by the State Clearinghouse? If so, please attach a copy of the NEPA or SEPA final approval letter. Yes No X. Proposed Impacts on Riparian and Watershed Buffers (required by DWQ) It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to required state and local buffers associated with the project. The applicant must also provide justification for these impacts in Section VII above. All proposed impacts must be listed herein, and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ Regional Office may be included as appropriate. Photographs may also be included at the applicant's discretion. Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233 (Meuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 02B .0243 (Catawba) 15A NCAC 2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please identify-)? Yes No X 2. If "yes", identify the square feet and acreage of impact to each zone of the riparian buffers. If buffer mitigation is required calculate the required amount of mitigation by applying the buffer mnltinliere Zone* I Impact I ,Required (square feed Multiplier ` 3 (2 for Catawba) 2 1.5 Total * Zone 1 extends out 30 feet perpendicular from the top of the near bank of channel; Zone 2 extends an additiona120 feet from the edge of Zone 1. 3. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e., Donation of Property, Riparian Buffer Restoration /Enhancement, or Payment into the Riparian Buffer Restoration Fund). Please attach all appropriate information as identified within 15A NCAC 2B .0242 or .0244, or .0260. XI. Stormwater (required by DWQ) Describe impervious acreage (existing and proposed) versus total acreage on the site. Discuss stormwater controls proposed in order to protect surface waters and wetlands downstream from the property. If percent impervious surface exceeds 20%, please provide calculations demonstrating total proposed impervious level. The original, undeveloped site had virtually no impervious surfaces The projected development will be approximately 50% impervious Most stormwater is routed through two permanent. dry detention basins into existing water courses and one underground pipe detention system XII. Sewage Disposal (required by DWQ) Clearly detail the ultimate treatment methods and disposition (non-dischazge or discharge) of wastewater generated from the proposed project, or available capacity of the subject facility. All residences in the development will be served by public sewers of the Metropolitan Sewerage Distract of Buncombe County Buncombe County. L Violations (required by DWQ) Is this site in violation of DWQ Wetland Rules (15A NCAC 2H .0500) or any Buffer Rules? Yes No X Is this anafter-the-fact permit application? Yes No X XIV. Cumulative Impacts (required by DWQ) Will this project (based on past and reasonably anticipated future impacts) result in additional development, which could impact nearby downstream water quality? Yes No X If yes, please submit a qualitative or quantitative cumulative impact analysis in accordance with the most recent North Carolina Division of Water Quality policy posted on our website at , : E i~ '; ~ r ~ ~ a <,t , ~ ~~ ~ _ ~ . ~ :,,_, ~,~ ~ f i M1, ;, c; . , If no, please provide a short narrative description: XV. Other Circumstances (Optional): It is the applicant's responsibility to submit the application sufficiently in advance of desired construction dates to allow processing time for these permits. However, an applicant may choose to list constraints associated with construction or sequencing that may impose limits on work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and Threatened Species, accessibility problems, or other issues outside of the applicant's control). ApplicandAgent's Signature Date (Agent's signature is valid only if an authorization letter from the applicant is provided.) ~`~/F- G ~ 0 m tr. r =. -P o A~ X ~-0 3 an 0 0 ~CQ vr3 NN~._n -~ W 3 ~ ~~ '6 X (d N b~ Z n ~) N ~ -t ~ lb V' 0 ~ ~ ~ 0 ~ ~ ~ ~ ~ ~ ~ o m `~ ~; m ~~ ~ 3 O~ Q n (1 --~ _ Q ~ "~ p ~ 3 ~ ~, ~~ Cn N u ~. ~ CQ ~ X N U, ~~? .,~,,.:~ , ~•. m n m Z ~ ~ ~, ,~ ~h ~„ '" _ ~ it ~ Q . , ~, r,~o~w ~ - H ~ w~, ~ "fir ~.. ,~ ' v ~ `~" ~`r^ ~ ,~ ~+. 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LANDSCAPEARCIIITECTURE (ANDPLANNING 189- ~ . ~hestnutStn~t 1-92 J~• MainJ'' Crcct Suite ijuite Pj ~sheville, NC 28801 Waynesville, N~ 28786 Ph 828-25z-5o58 I'hj~x ezert56-8558 ~x 828_255-0190 ~ 2196.,0 ~~ ~ ~ ~ = ~ , -.'. ~~ ~ ~-: ` ~ '_ -!`l / / ~ ~GG ~ ( 2180 ~- = _ - : ~~ --~~ _~ _ _ ==' ~~~ ~ i~ f /Ti _ . ~ / r./ ~ -a.rw. rwr ~ rte' ~.~" i "~ .~ _ / ~ ~ , .._ .r~ ..r o-r~~, eat ~ I .I ~ \~ ~~ ~ ~ ~ ~ ~•/ %. /J ,. `~' ` / \~y ~/ NO. Ba~MafYy 11 ~. f~ I \'~~e1' /3 ~~~ ~/ _ ,~>~~ . ~ gt ~ Ero'vids ~inforeed &k~ane ; _i'"~i ~- - ~ % / ~ - was detailed on.BW-8 0` / -~ ! 6DfD' f / / ~ / / / ~ i "~f ~IoPe.-Protsotl • I ~ ~.-~ i ~ , Pro" Akin~liied Ch's? ~ y~/~~ay tvorttt Aaferican,~ I ~ ' '_ ~.,.~ r~i-r Fjeedmail and_ ~: ~ ~ ~'~-a Equtv.$lahie-her I I _ _ 11• M ~l ! e~'dn, - sietufa~t'ecoperendattoro i Extend r-~erbp 2{~ ' ~ ~ ~ Sesd ai ~peettted. l8sf-er to 2~b~ ptpa croon ttnd-p.y~p~ -- - ~'~~-~= - ~ Det'.ail 3 on-81U-9 of Permtt Set. "Psi+'eem 1 doonstreOm tTom ~ /'•""~` _' S I T~ i='L ~4N C Cut Sheet ~ Scale: 1" = b0' i i ~ L ~ T.~• (ANDSCAPEAKCf11T>=.CTURE ~~% LANDPLANNING i 8+ ~. ~}~estnutStreet t92 `j. Main Street Suitt f Suite g Ashcvi~~e, NL Z8801 ~/,/aynesvi~~e, Iv~ 28786 P6 828-z5z-go58 f'6j~x s281t56-e558 [=x 828-255-ai40 UJ~4T~RS~I~D C~4LCUL.~4TIONS (NGDOT Method for Runoff from Urban Areas) ~4rea 65.20 ,4c. +/- Nydrologic Contour = 8 lS~e Chart C 200.1) Q10 95 cfs +/- (S~ Chart G 2003 Q25 95 cfs x 135 CCurYe Ya lug) = 128 cfs +/- (Sew Chart C 2003) Correction Factor for "Small ~4rea, l=ull Eiusiness": 6210 = 95 cfs x 1.~ = 133 cfs CS~~ Chart C 2003) 6225 = i28 cfs x 1.4 = 180 cfs (Sa;e Chart C 2003 _ - "°'- __ __ _ ..Proposed 2.:1-.Fflf Slope_ Pcot~ct - __ _ _ . ur/ SC250 _b North American- _ - - _ _ _ ~ ~'~ ~m Csreen or Equiv: _ _ - . ~,~ ~, _. _. - - Exts. Csrade - - _ - - ~,~„ ~ - _. _ _ _ _ si~o ~ _ . - _ --- _ . __ - - - _ _ __ ~ - -- - - - - ~. _ - um n ze _ ov e ~ ~1° ri ra headwa li arrd endwai I over -- _ _ - _ - - _ __ _ _ ~ ~e _ _ _ _ _ ~ __ ___ __ CULV~fi~T Ci~OSS-S~CT(ON 5ca le: 1" = 20' ~"~. f-, .... ~. ~,.. 11P1 ~![~ [UU! w~JJI'm UfDdODD06S NSSOC No•149/ P• I 1 W V~~~ ~ ~ ~ V 0~~ . v ~o ~zo~ W ~~~ ~V~~ v~ O ,V ~ Q~oU ~~°o o~ U ~ • ~4 ~ ~ _,, ., . ~~ 7 nur.rt. cuui~-~-. r ~-~~ ~roaooooxs Assoc No•1451 P• 2 ~~~/VIPL E ~ . G EN . HYDROLtiG'1C ONTvUR .~0 7,000 G E S~d1/~ LN~i9~EA RfIJ~ L3~ JN,~S$ ANSWER ~ooo Q /0= ~9 X 1..~ ~ 5~f.~ GFS, 800 6DD /OrJ4 ro0a pro ~,. ,.~~ _`~~ ~.vv .~ - ~. 1F - . 00 1 ~ . ~ ~ - `~' ro D - --1.. D tt; - a o--~ - ~ U 8 Or ~,p - ...._ ..._. -~ ~ - Q Q5 4 14 ~ - ~ U ~ ~aD ~ ~~ r ~ v Qj ~ W~ ~ ~ ,,.nom ~'.~ FOR V~ V ~N ~ D~~~~~~NT -. ~ ~~~E oq f EQUE/YClE5 - - R V~9~E x . 75 u x ~, p _ " n ~ X 1.33 . ~S4? . n t X .$ ~ - . Rl1N~fJ~ fRoM t1RBRIV RRER~ .~ N~RrN GRRdLINR 5 ~ T~ NIGHWRy G41~M155jAN JANE 19?~ G 200.3 - culvert Report Hydraflow Express by IntelisoNe Village at Bradley Branch, Stream Culvert-1 - Q10 Invert Elev Dn (ft) = 2158.00 Pipe Length (ft) = 100.00 Slope (%) = 4.00 Invert Elev Up (ft) = 2162.00 Rise (in) = 60.0 Shape = Cir Span (in) = 60.0 No. Barrels = 1 n-Value = 0.024 Inlet Edge =Projecting Coeff. K,M,c,Y,k = 0.0045, 2, 0.0317, 0.69, 0.5 Embankment Top Elevation (ft) = 2178.00 Top Width (ft) = 25.00 Crest Width (ft) = 0.00 Elev (ft) 2182.00 2178.00 Profile Hw Depth (ft) 20.00 16.00 2174.00 12.00 2170.00 8.00 2166.00 4.00 2162.00 0.00 2158.00 -4.00 2154.00 - ~~ ~~ ~+v ~u do 70 80 90 100 110 120 130 140 -8'00 Friday, Apr 13 2007, 2:23 PM Calculations Qmin (cfs) = 133.00 Qmax (cfs) = 133.00 Tailwater Elev (ft) _ (dc+D)/2 Highlighted Qtotal (cfs) = 133.00 QPiPe (mss) = 133.00 Qovertop (cfs) = 0.00 Veloc Dn (ft/s) = 7.70 Veloc Up (ft/s) = g.95 HGL Dn (ft) = 2162.11 HGL Up (ft) = 2165.22 Hw Elev (ft) = 2165.99 Hw/D (ft) = 0.80 Flow Regime =Outlet Control Reach (ft) Culvert Report Hydraflow Express by Intefisolve Friday, Apr 13 2007, 2:30 PM Village at Bradley Branch, Stream Culvert-1 - Q25 Invert Elev Dn (ft) = 2158.00 Pipe Length (ft) = 100.00 Slope (%) = 4.00 Invert Elev Up (ft) = 2162.00 Rise (in) = 60.0 Shape = Cir Span (in) = 60.0 No. Barrels = 1 n-Value = 0.024 Inlet Edge =Projecting Coeff. K,M,c,Y,k = 0.0045, 2, 0.0317, 0.69, 0.5 Embankment Top Elevation (ft) = 2178.00 Top Width (ft) = 25.00 Crest Width (ft) = 0.00 Elev (ft) 2182.00 2178.00 Profile Calculations Qmin (cfs) = 180.00 Qmax (cfs) = 180.00 Tailwater Elev (ft) _ (dc+D)/2 Highlighted Qtotal (cfs) Qpipe (cfs) Qovertop (cfs) Veloc Dn (ft/s) Veloc Up (ft/s) HGL Dn (ft) HGL Up (ft) Hw Elev (ft) Hw/D (ft) Flow Regime = 180.00 = 180.00 = 0.00 = 9.88 = 11.41 = 2162.37 = 2165.75 = 2168.01 = 1.20 = Inlet Control Hw Depth (ft) 20.00 16.00 2174.00 12.00 2170.00 8.00 2166.00 4.00 2162.00 0.00 2158.00 4.00 2154.00 -- ~~ ~u uu 90 100 110 120 130 140 8'00 Reach (ft) ,, U.S. ARMY CORPS OF ENGINEERS I~AYMENT wII,1VlIlVGTON DISTRICT RED EIVED Action ID. 2007-01602-311 County: Buncombe USGS Quad: Skyland GENERAL PERMIT (REGIONAL AND NATIONWIDE) VERIFICATION Property Owner /Authorized Agent: Bradley Branch Developers. LLC Address: 3871 C Sweeten Creek Road Arden, NC 28704 7 1 3 0 9 Telephone No.: (8281684-8800 Size and location of property (water body, road name/number, town, etc.): The protect area is located on a 30.22-acre tract of land known as the Village at Bradley Branch in Asheville, Buncombe County, North Carolina. Coordinates for the site are 35.4541 north and 82.5333 west. Description of projects area and activity: The permittee is authorized to impact (culvert) 100 linear feet of an unnamed tributary to the French Broad River in order to facilitate site development. Applicable Law: ® Section 404 (Clean Water Act, 33 USC 1344) ^ Section 10 (Rivers and Harbors Act, 33 USC 403) Authorization: Rcgional General Permit Number: Nationwide Permit Number: 18 Your work is authorized by the above referenced permit provided it is accomplished in strict accordance with the attached nationwide conditions, the attached letter from the North Carolina Wildlife Resources Coaunission, and your submitted plans. Any violation of the attached conditions or deviation from your submitted plans may subject the permittee to a stop work order, a restoration order and/or appropriate legal action. This verification will remain valid until the expiration date identified below unless the nationwide authorization is modified, suspended, or revoked. If, prior to the expiration date identified below, the nationwide permit authorization is reissued and/or modified, this verification will remain valid until the expiration date identified below provided it complies with all requirements of the modified nationwide permit. If the nationwide permit authorization expires or is suspended, revoked, or is modified such that the activity would no longer comply with the terms and conditions of the nationwide pemut, activities which have commenced (i.e., aze under construction) or aze under contract to commence in reliance upon the nationwide permit, will remain authorized provided the activity is completed within twelve (12) months of the date of the nationwide permit's expiration, modification, or revocation, unless discretionary authority has been exercised on a case-by-case basis to modify, suspend, or revoke the authorization. Activities subject to Section 404 (as indicated above) may also require an individual Section 401 Water Quality Certification. You should contact the NC Division of Water Quality (telephone (919) 733-178 to determine Section 401 requirements. For activities occurring within the twenty coastal counties subject to regulation under the Coastal Area Management Act (CAMA), prior to beginning work you must contact the N.C. Division of Coastal Management. This Department of the Army verification does not relieve the permittee of the responsibility to obtain any other required Federal, State or local approvals/permits. If there are any questions regarding this verification, any of the conditions of the Permit, or the Corps of Engineers regulatory program, please contact Lori Beckwith at 828-271-7980. Corps Regulatory Official Lori Beckwith , ~ J Date: June 7, 2007 ,. Expiration Date of Verification: June 7, 2009 -2- Copy Furnished: Broadbooks Associates, P.A., Attn: Mr. R. Daniel Hyatt, RLA, 492 South Main Street, Waynesville, NC 28786