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HomeMy WebLinkAbout20051497 Ver 1 _401 Application _20050805 Hue K ~~~~g~thTryOnStreet"\ ,__.,--:.:,\-L._. :E.,.}7~-.5~OF TRANSMITTAL Charlotte, NC 28203 ~'<J..'. i 81 \-0 L-: '- '--'-- \:!J . Phone: (704) 334-4454 '\ ,-- . E N GIN E E R I N G ~ Fax: (704) 334-4492 i'U r ~ 'LOCIS ~ WwV'N.buckengineering_com A \j ~ i) J ,." ' _ _, (.~ '.i I'f .,.. j tr:t~~. ~,. ,I ',-. ~,' .,.~\ \.:; '. ,'vh ':-::lU~:3 / ~~J S\:"',~,~... ,. ,\~. ~..." RE: McAlpine Creek Stream Stabilization at Sardis Road NC DENR 1650 Mail Scrvice Centcr Raleigh, North Carolina 27699-1650 TO: ATTENTION: Cyndi Karoly DATE: 8/3/05 JOB NO. 303.11 We are sending via: [!] Overnight D Regular Mail 0 Pick-up D Hand Delivered The following items: D Correspondence D Plans o Specifications 0 Other as listed below: COPIES DATE NO. DESCRIPTION 7 8/3/05 Technical Desiqn Memorandum 7 PCN Form 7 Project Site MaD, USGS TODOQraDhic MaD & Soils MaD 7 60% Desiqn Plans 1 7/27/05 Check - permit fee pavment THESE ARE TRANSMITTED as checked below: D For Approval D As Requested D Approved As Submitted D Returned For Corrections o For Your Use D For Review And Comment D Approved As Noted D Forward To Subcontractor REMARKS: If you have any questions, please contact me at 704-334-4454, ext 7892_ COpy TO: File SIGNED: Joshua Gilman ( B~' 'CC- ~q~.L ./i"'" ...."r-\.. c,c' ''"'.''...''''_._ " ~-~,-- ~y~. --''''-;~'-' - i.: :'-J (; I 0; I.: I ~ R I N (; I ;;, r!" f II \ , , u /I ''I , II [ I ',t '! I.',' /- 1)/ ',: (I il ,I 11 I I ~ -; i 1 'I ) I t.' .....' \- I I \ ,,' (1 III August 3, 2005 Ms. Cyndi Karoly NC DENR Division of Water Quality, Wetlands Unit 1650 Mail Service Center Raleigh, North Carolina 27699-1650 Subject: Pre-Construction Notification 401/404 permit Certification Package McAlpine Creek Stream Stabilization at Sardis Road Charlotte, North Carolina Dear Ms. Karoly: Please find enclosed seven copies of our stream stabilization plan set for the subject project. We have also included the following supporting data: . Technical Design Memorandum (7 copies) . PCN form (7 copies), permit fee payment (I check) . Project Site Map, USGS Topographic Map, & Soils Map (7 copies) . 60% Design Plans (7 copies) The goal of the project is to arrest the current degradation process in McAlpine Creek and promote bank and bed stability by placing two in-stream structures, a J-hook vane and a rock vane. Inner berm and bankfull benching will be performed on the left bank only, Additional treatments associated with the above activities include bioengineering and riparian landscaping to promote natural vegetative bank and channel development. This project is not being used for compensatory mitigation. This same information has been submitted to the Asheville Regulatory Field Office of the US Army Corps of Engineers. If you have any questions, please call me at (704) 319-7892. Sincerely, ~J:~ Q ~ Joshua Gilman, p, E. Project Manager J 1 .... l.c :H \'.~TL'-~ '.....- Enclosure: 401/404 Certification Package Cc: Mr. James Gordon, Mecklenburg County Storm Water Services I,L,';':'~:~: ;~~;;';*"~!li'~:,:~-~~~',: r!;1_1""'~;'~~_'F"__";'_~~J!ijl&;.-",~ -:'~-{.~-i_:",,:~.~~;,,,,,,_,,,,"::,--,<:-,-;r",,,,,:;<#\,"""_'" ".:,<:. .- .....-, <;":;<;j:' ~"."'~.'-:"~ '/'~J~- - - -- .":i:,"":;'; ,'-~,:-.-j.- -h.~_. "':: ,~,}~''\" -;:';";L_' "- <':.:}J" 'kt::f,-:O~F'l' ""';i~~~: j -~-~<;' , -~'" :t~ '"'. I II (I <) j ., ...: II ,'\. \' I I )" '.\_ .1 \. . ') 1 t , II Ii ,. I [ ,lId I J 1 ' I) 1 ,I ~ -.... ~-~ 11 I 1 ,,' ! () () l ! 1 " Ill' t i...... "<', \ I 1 I 11 ( .I! \ \ I I 11 . I '2 :'~ ... () . ~ " ,I] 1 :. , I I' i J 11 t I' !I ,\ ' 'J ] 'I 1 I' l' :1 \I !i \' (I .i ~ 1 ) 1 'i 1 (, ~ 'I (1 II ; , .: ~;').~ ... BUCK E N GIN E E R I N G ............. ~ Responsible Engineering and Science for a Better Environment 1447 S. Tryon Street, Suite 200 Charlotte, NC 28203 704-334-4454 704-334-4492 (fax) Memo To: Amanda Jones, US Army Corps of Engineers From: Josh Gilman, Buck Engineering CC: Cyndi Karoly, NC DENR Date: August 3, 2005 Re: Technical Design Memorandum McAlpine Creek at Sardis Road Stream Stabilization Project Buck Engineering Project No.: 0303.11 Existin~ Conditions Since the disturbed area of the McAlpine Creek (see Photo 1 and Photo 2) is considered by Mecklenburg County as an urban maintenance concern, the primary objective of this project is to arrest the current degradation process and promote bank and bed stability. However, it is also in the interest of the County to identify and incorporate, where possible, natural channel design concepts inclusive of in-stream structures, bankfull benching and associated bioengineering and landscaping activities. This technical memorandum is intended to provide insight to the design considerations incorporated into the McAlpine Stream Stabilization Design Documents. This summary documents the hydraulic design criteria, geomorphic design data, and stability design criteria used to establish the proposed dimension, pattern and profile. As noted in the permit submittal cover letter, this project is not being used for compensatory mitigation. Hvdraulic Desi~n Criteria Buck Engineering estimated the existing and proposed conditions hydraulic performance for the reach where in-stream restoration activities are proposed. Buck first performed a geomorphic assessment and topographic survey of the existing conditions. During these activities, field indicators of channel forming f1ow(s) in an adjacent stable reach were identified and surveyed in detail for use in hydraulic calculations. Roughness for this reach was calibrated at base flow against on site gage data (USGS 02146600 McAlpine Creek at Sardis Road). Channel forming flows were evaluated using the associated stage, slope, and one-dimensional discharge calculations. Additionally, discharges were computed for a range of recurrence intervals (between 1-yr and 2-yr) using peak annual discharge gage data. A third method of determining discharge simply involved consulting the urban piedmont bankfull regional curves. These three methods produced ranges of bankfull discharge between 2,100 cfs and 2,600. Collectively, comparisons of calculated discharge data with existing channel morphology produced lines of converging evidence suggesting that current geometry was a function of bankfull and inner berm discharge. The inner berm feature is an aggradational feature that occurs at stages below bankfull. Greater emphasis was placed on the bankfull discharge computed using Manning's equation and therefore 2,350 cfs was used as the design bankfull discharge. Inner berm discharge was estimated between 1,160 cfs and 1,340 cfs. Buck used both the estimated inner berm and bankfull discharges as hydraulic design criteria for the proposed channel modifications. Design criteria for inner berm and bankfull discharge included accommodating the geomorphic design criteria while maintaining stability. Geomorphic Desi~n Criteria Using cross-sectional dimension properties associated with the adjacent stable existing conditions analysis, Buck Engineering developed dimensionless ratio design criteria. Although minor, the proposed pattern and profile properties were compared to dimensionless ratios of our internal reference reach database. Buck designed a first iteration of proposed dimension and appropriate pattern to accommodate both the geomorphic and hydraulic design criteria. Buck then made adjustments to the initial dimension and pattern to accommodate easement and design constraints. At that point, shear stress calculations of the existing and proposed conditions were compared to ensure a reduction and near bank shear stress. Minimizing earthwork and area of disturbance to mature floodplain forest, Buck developed a final dimension, pattern and profile appropriate for the design criteria. Stability Desi~n Criteria In addition to proposing adjustments to the channel geometry that reduce the average velocity and bed shear stress, structural placement is proposed with the intent of redirecting flow energies and reducing near bank shear stress. Design refinements to specific structures include conformance to the same hydraulic criteria as that applied to the natural channel design. Final structural placement locations and alignments are indicated on the design documents in plan and profile. ~7 Photo 1 - McAlpine Creek facing downstream from bridge at Sardis Road. Note scour along left bank. Photo 2 - McAlpine Creek facing downstream. Close-up of scour along left bank I I L Office Use Only: Form Version March 05 USACE Action ID No. D\VQ No. (If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".) I. Processing 1. Check all of the approval(s) requested for this project: [g] Section 404 Permit D Riparian or Watershed Buffer Rules D Section 10 Permit D Isolatcd Wetland Permit from DWQ [g] 401 Watcr Quality Certification D Express 401 Water Quality Certification 2. Nationwide, Regional or General Permit Nwnber(s) Requested: NWP 13 3. If this notification is solely a courtesy copy because written approval for the 401 Certification is not rcquired, check here: D 4. If paymcnt into the North Carolina Ecosystem Enhanccment Program (NCEEP) is proposed for mitigation of impacts, attach the acccptance letter from NCEEP, complete scction VIII, and check here: D II. 5. If your project is located in any of North Carolina's twenty coastal counties (listed on page 4), and the project is within a North Carolina Division of Coastal Management Area of Environmental Conccrn (see the top of page 2 for further detail~)rfJ1.~~~J:1~~r:.\ [J_~ ~ [:;11 :-=-~, L7 \ ;:~, ! 1 \i/ I.l~:-J \ \ \ \ Applicant Information U~ ~--'-' ,~ . -' -. l!!J {\U G S 2005 1. Owner/Applicant Information _ .' ., " N J G d PE C'Y " . .,..."Iy ame: ames or on.'--"" - -' , '-,'-,..-..,,,",, Mailing Address: Mecklenburg County Land Use and Environm'e~'t~l'Sv~n:ices Age~cy- Storm Water Services 700 N. Trvon Street Charlotte. NC 28202 Telephone Number: 704-336-3871 Fax Number: 704-336-3846 E-mail Address:gordoim@co.mecklenburg.nc.us 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: Joshua Gilman Company Affiliation: Buck Engineering Mailing Address: 1447 S. Tryon Sf. Suite 200 Charlotte, NC 28203 Telephone Number: 704-319-7892 Fax Number: 704-334-4492 E-mail Address:igilman@buckengineering.com Page 5 of 13 III. Project Information Attach a vicinity map clearly showing the location of the property with respect to local landmarks 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 clearly defined. For administrative and distribution purposes, the USACE requires information to be submitted on sheets no larger 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: McAlpine Creek Stream Stabilization at Sardis Road 2. T.I.P. Project Number or State Project Number (NCDOT Only): NA 3. Property Identification Number (Tax PIN): 18730101 & 21309133 4. Location County: Mecklenburg Nearest Town: Charlotte Subdivision name (include phase/lot number): Directions to site (include road numbers/names, landmarks, etc.): Traveling North on US74. turn left onto Sardis Road North. turn right onto Sardis Road. travel almost Yz mile. turn left onto Old Bell Road. turn right immediately into parking lot. follow unpaved road 250 feet to proiect site. 5. 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): 35.1371193 ON -80.7682266 oW - upstream point 35.1369324 ON -80.7684784 oW - downstream point 6. Property size (acres): 0.87acres (proiect boundary) 7. Name of nearest receiving body of water: McAlpine Creek 8. River Basin: Catawba (Note - this must be one of North Carolina's seventeen designated major river basins. The River Basin map is available at http://h20.enr.state.nc.us/admin/maps/.) 9. 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 immediately downstream of a three-pier. two lane bridge on Sardis Road. The channelized stream is lined on both banks with rip-rap (50' on the east bank. 25' on the west bank). The adiacent land consists mostly of medium density residential. Page 6 of 13 10. Describe the overall project in detail, including the type of equipment to be used: The proposed activities include construction of two in-stream structures. a J-hook vane and a rock vane. Along the left bank (downstream-facing) only. inner-berm and bankfull benching will be performed. The proposed structures and grading will act primarily to reduce ncar-bank shear stress and secondarily to promote vertical bed diversity for aquatic habitat. In order to resist any residual ncar-bank shear stress. armoring of the bank toe (again. left bank only) will be applied using boulders larger than Class I. This armoring will function to prevent massive wasting and block failure along the treated bank. Additional treatments associated with the above activities include bioengineering (cover logs and root-wads) and riparian landscaping (seeding. matting. live staking and bare-root plantings/transplanting) to promote natural vegetative bank and channel development. These bioengineering and landscaping treatments will function to complement the stability treatments and enhance both the riparian buffer and aquatic habitat. In order to effectively perform the above activities. a track-hoe with a hydraulic thumb should be used for in-stream structure placement and stone toe protection. All furnished materials for use in construction will likely be delivered at or near their proposed installation locations via dump truck. 11. Explain the purpose of the proposed work: Since this disturbance is considered by Mecklenburg County as an urban maintenance concern. the primary obiective is to arrest the current degradation process and promote bank and bed stability. 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. NA V. 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. NA VI. Proposed Impacts to Waters of the United StateslWaters of the State Page 7 of 13 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 clearly 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 separate sheet. 1. Provide a written description of the proposed impacts: approximately 325 feet of perennial stream Stabilization and enhancement of 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, I r' d b h d fl d' separately 1st Impacts ueto ot structure an 00 mg. Wetland Impact Type of Wetland Located within Distance to Area of 100-year Nearest Impact Site Number Type of Impact (e.g., forested, marsh, Floodplain Stream (acres) (indicate on map) herbaceous, bog, etc.) (yes/no) (linear feet) Total Wetland Impact (acres) 3. List the total acreage (estimated) of all existing wetlands on the property: NA 4. Individually list all intermittent and perennial stream impacts. Be sure to identify temporary impacts. Stream impacts include, but are not limited to placement of fill or culverts, dam construction, flooding, relocation, stabilization 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 linear footprint for both the original and relocated streams b . I d d T I I I . I I h X 'd h h d"d b 43560 must e mc u e . o ca cu ate acreage, mu hply engt WI t , t en IVl e >y , Stream Impact Perennial or Average Impact Area of Number Stream Name Type of Impact Intennittent? Stream Width Length Impact (indicate on map) Before Impact (linear feet) (acres) 1 McAlpine Creek Stabilization Perennial 60' 325 0.45 Page 8 of 13 Total Stream Impact (by length and acreage) 325' 0.45 5. Individually list all open water impacts (including lakcs, ponds, estuaries, sounds, Atlantic Ocean and any other watcr of the U.S.). Open water impacts include, but are not limited to fill . d d' f1 d' d' b lkh d t I , excavatIOn, rc 19m9, 00 mg, ramage, u ' ca s, c c. Open Water Impact Name of Water body Type of Water body Area of Site Number Type of Impact (lake, pond, estuary, sound, bay, Impact (indicate on map) (if applicable) ocean, etc.) (acres) Total Open Water Impact (acres) 6. List th I . llWt f h US It" fi h e cumu atlve Impact to a a ers 0 t c . . resu mg rom t e proJect: Stream Impact (acres): 0.45 Wetland Impact (acrcs): 0 Open Water Impact (acres): 0 Total Impact to Waters of the U.S. (acres) 0.45 Total Stream Impact (lincar feet): 325' 7. Isolated Waters Do any isolated waters exist on the property? D Yes ~ 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. NA 8. Pond Creation If construction of a pond is proposed, associated wctland 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): D uplands D strcam D wetlands Describe the method of construction (e.g., dam/embankment, excavation, installation of draw-down valve or spillway, etc.): NA Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond, local stormwater requirement, etc.): NA Current land use in the vicinity of the pond: NA Size of watershed draining to pond: NA Expected pond surface area: NA VII. Impact Justification (Avoidance and Minimization) Page 9 of 13 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. This proiect constitutes a positive impact to the stream. By stabilizing the stream it prevents further undermining and slope failure in the banks: thereby preventing excess sediment from entering into McAlpine Creek and causing further degradation of aquatic habitat. The protection from bank failure will also protect the riparian and upland vegetation. As part of the proiect there will also be instream aquatic habitat enhancement and riparian buffer enhancement along the entire proiect reach. Construction practices will follow guidelines from the NC Erosion and Sediment Control Planning and Design Manual. Please see attached plans for further detail. 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://h20.enr.state.nc. us/ncwetlands/strmgide.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. Page 10 of 13 For the entire proiect reach length there will be instream aquatic habitat enhancement and riparian buffer enhancement, making the proiect self-mitigating. Enhancement activities include bioengineering (cover logs and root-wads) and riparian landscaping (seeding, matting, live staking and bare-root plantings/transplanting) to promote natural vegetative bank and channel development. These bioengineering and landscaping treatments will function to complement the stability treatments and enhance both the riparian buffer and aquatic habitat. 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 fonn. For additional infonnation regarding the application process for the NCEEP, check the NCEEP website at http://h2o.enr.state.nc.us/wrp/index.htm. Ifuse of the NCEEP is proposed, please check the appropriate box on page five and provide the following infonnation: Amount of stream mitigation requested (linear feet): NA Amount of buffer mitigation requested (square feet): NA Amount of Riparian wetland mitigation requested (acres): NA Amount of Non-riparian wetland mitigation requested (acres): NA Amount of Coastal wetland mitigation requested (acres): NA IX. 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 D 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 NEP A/SEP A document is required, call the SEP A coordinator at (919) 733-5083 to review current thresholds for environmental documentation. Yes D 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 D No D X. Proposed Impacts on Riparian and Watershed Buffers (required by D\VQ) It is the applicant's (or agent's) responsibility to detennine, 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. Page 11 of 13 1. Will the project impact protected riparian buffers identified within 15A NCAC 2B .0233 (Neuse), 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 D No ~ 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 buffi I . r er mu tlpl1ers. Zone* Impact Multiplier Required (square feet) Mitigation 1 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 additional 20 feet from the edge of Zone I. 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. NA 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. This proiect involves work in the stream and on the stream banks only. No impervious area will be added during this proiect. XII. Sewage Disposal (required by DWQ) Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of wastewater generated from the proposed project, or available capacity of the subject facility. NA XIII. Violations (required by DWQ) Is this site in violation of DWQ Wetland Rules (15A NCAC 2H .0500) or any Buffer Rules? Yes D No ~ Is this an after-the-fact permit application? Yes D No ~ 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 D No ~ Page 12 of 13 , , . . 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- web site at http://h2o.enr.stnte.nc.tls/ncwetlands. If no, please provide a short narrative description: This stream stabilization proiect is considered by Mecklenburg County as an urban maintenance concern. the primary obiective is to arrest the current degradation process and promote bank and bed stability. There is no potential to increase development. ' 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). NA /~): Jj ') l /~ 1J;t. ' G-"'y~ I!-r JC:1 < ), a0 c) I . ' I Applicant/Agent's Signature Date (Agent's signature is valid only if an authorization letter from the applicant is provided.) Page 13 of 13 McAlpine Creek Stream Stabilization at Sardis Road , , " '" '- 1 J' - . L' ~ {f" - " :( Ntmso_it ~fHO~'\ _;\0 ~~Ita. ; (p~, oHarri.sbu~O~~m.~~~ J......... 'r. '" 0 '~ II 0- FIows'to,.. & '\ Oo~h O,ov_, P- C,uk < 0 00' ~., . , 0 1 f" 0 0 0 t. - 1___ Mil' ';';" 'ChtmWay'. t , ~ ' . ,_ !-", I' I. o 0 8 1m 0 'J" I. .' ~ 80 0 '" - A:;\ ------to ~o: e .~!" o..J'J l .; C Charlotte- b-) '. ..... /~~ci~artUs .: o ~~.. 'f I 0'0'" Pa,k' ,,1l4!, - '0 I . 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'I- \ ' , ed Rivo, '..". -~ HOUston.....'. R --"'R t # I 0 i. OCfVf~.S <<> 2005 MapQue$t.com~lnC7t'=',2005 GOT, In \, /'> ~ / I\.: 0 Vicinity Map t, ,,-J~' .~^ Ci J ..\; Ln ... -r ";u' -- \ "a ~ ~ -0 ...... r#'V' f \{i';' 0,&\0 J -9. ("'" I ~\,e~ ()':- ~ I ~..... ?\ J ~~ "\~ .1 -~L. .5 :a / ;V;~. 14. -i', _( '" ~ "'e' ,."V' 1::' ~ \"~ lk \ \11 l l \ 0- n ,\ \ n,./" 'f ) ~~~/ J~~ ~ "~~ \, ,~ ,\', "', )\ I_I ... \rV cf..- \ Jl"c/f;l I'" ,r; <<> 2005 MIIPQuest.com, Inc. ~.v Qr,l; \ I ( ) L ! tMVTEQ I ----~l -- BUCK. 0 F N {, I N I~_ I:. R I N c, ~ 500 1,000 2,0~~et USGS Topographic Map McAlpine Creek Stream Stabilization Project Mecklenburg County, NC BUCK. ENCiINEERINO"'" ..c::. o 50 100 200 Feet Soils Map McAlpine Creek Stream Stabilization Project Mecklenburg County, NC J 555 __________n ~- -- 550--,-- 545 ~-- DATUM ELEV : 542. 5 r--' N Ll): Ll) PLAN VIEW 1" ~~ :il'fa ~c ~ ; \ \ \. o -< o 0:: '" o ~ '" 10 00 STA(II+IO) ELrVATION 547.0' 50' r/ / // / / // / /~ 18\ ~ INSTALL RO DETAIL 1 l1~~N~t:E PER SED AT STA (12+ EXlSllNG __ OfFSET (16')LT 23) :--:::::.. ~nON 545.D' ~';'~~~?4glsnNG SANK AT STA.( ELrVATION 552.7 13+25) -- n-:::::-- ~- PROFILE 1 "=40' Ol N 0::> 0 '.~ y\ 6, g I~:: - \,~~ g ; ~ ~__J_ : ll) ~ -.-,----. STEP /PO~L EXISTING KNICKPOINT + Ln ~ co ui <( .... It) W W 0 Dc;-----~ :J -' '-' W EXlSllNG PROFILE " _ to. ____+ It) ::: :: It) : 5 :> 1 ~ d i PR~POSED PROnLE I co ....' -+- . N ~ to CD .... - ~ ..-! 0), N ci' Ll) ~: Ll)' ci r--! Ll), Ll)' co .' N Ll)' Ll) v' lOi .0' I Ll) Ll)! '<1'; Ll). vi i I Ll)' , i 10+50 ! 11+00 11+50 I Ll)! I i Ll)' , -ii 01 ; Vi .0 ., lO: V! lOl ., Ll)i vi lo: Ll)i v' I I Ll)' Ll)' i I ! I ! Ll): cri! '<1'; Ll); co' cri vi Ll) 12+00 HORIZONTAL SCALE- VERTICAL SCALE: 1~' L: \Proicd? \0505C \0505// \0 ' , c?/an \ Plan? \E?o=.dwa Ju108, ZOO''5 - 9:"50ar/ 12+50 1": 40' 4' 13+00 ~ --yt.-J:o.. 14+ ~ --.. --- ,-.~~ It) N -+ I') '" N .... It) W -' :> "- W "- -' 0::, W - , --~ 0' 0>1 Vi Ll); i i i N' ~: Ll)' 13+50 ~. -( f;;iil < - . z '" - ... ... !" + o 0 0", I') 0 o 0 + . .... Ol C ~ Z . ---;- > W W 1---' ,w ; \ : i ; i i i I"}' '1 0), v' Ll)! ! i ; j ..-1 i oil I .q-j' Ll),! PLANS FRfFARfD BY, ilBUCK ENOIN!:ERING~ 14+00 '~"""''''''2CO- _ . ..... NOK:Tl1 c;..tJOUIoIA 2~20.3 110. OAT!: I5l' ~ LEGEND TIE IN TO EXISTING BANK PROPOSED BENCH STONE TOE PROTECTION TREE EXISTING RIPRAP OUTFALL STRUCTURE ~- ~-~ !O311 .D~ lrCI. t.:./A 5U~'tl'r' """ JeG ~l".v::!:Jeo' :~ -:~::: i . -.;'_~.l ; ._, - -.I. - '.-. ~L- ~' --::---./~ (::- \ :. ~.T ~:'~~:: ,":.:.;.:~ ,~'::.: .....' fo..,..I'. --,,,,-,=--.=..~,,,,--~,,,,"-=,,,,-~-~~_...,,,,~,, CliARLOTIE - ~IECKLEl\llURO STOR.\! WATER SER\1CES ~ 700 NORTIl TRYON STREE1 CliARLOTIE, NC 28202 PH. (704)33G-RAIN FAX (704)336,38'6 McALPINE CREET AT 5ARDlS ROAD STREAM STABILIZATION PROJECT CHARLOTTE. NORTH CAROUNA CONCEPTUAL DE51GN PLAN SHEET "'''' I '" 4 10+89 TIE INTO EXISTING 568 568 I 564 ;-\ 560 ~ 556 -- 552 --- 564 /-\ 560 ~ 556 ~--;, ' -"" . d- 552 548 ------ 548 544 544 -40 -20 o 20 40 11 +09 TIE INTO EXISTING GRADE RIFFLE 1 564 ~ , , -----~--------------,----- , I 560 PROPOSED BACK OF BENCH _==~~,L 1 : : ' i . --,---"---~~,--:' ;ti-.;---'--.-j ; PROPOSED FRONT i ! 1. . .-OF-BENCfi---i ! .__~__n_; 556 552 548 . TIE INTO EXISTING ----'---CHANNEL 544 -40 -20 o 20 NOTE: .ALL CROSS-SEC110NS FACING DOv.NSTREAll AND UPSTA 1100 .SEE TYt'ICAL CROSS-SEC11OO (SHEET 5) FOR TREA 'I!.IENT DETAIL .TOPOGRAPHICAL DATA CONSISTS Of nELD-RUN t.lERGED 'MTH COUNTY PROVIDED GIS DATA L: \ Pro icd? \0505C \0505.11 \ Oc?ion \ Plan? \E?a=.d"'O Ju108, ZO05 - 9:'50ar/ 564 560 556 552 548 544 40 TIE INTO EXISTING GRADE 568 564 I I PROPOSED BACK OF BENCH I I ! 560 556 11 +67 POOL 1 552 ; I PROPOSED FRONT OrBENC~i I ! 548 544 _________TIE.INTQ...EXISTING CHANF.fEL- 540 -60 -40 -20 HORIZONTAL SCALE: 1"=20' VERTICAL SCALE: 1"=10' j . i ~ o '-------;- ~- j ! 7' ; i :- -I,--~ ; i ~_~____:__i ! -- 540 , , , , ---_._---"-- 20 40 EXISTING PROFILE PROPOSED PROFILE FLANS FRfFARfD BY: BUCK !:NGINE:!:RING~ 1""7~. Tryo<IStreet Surtc 200 ~. NORTl1 CAA.DUNA 20203 NO. o.o..Tt eY 568 , , tJ , , I 564 560 556 552 548 544 60 ~. ~-~ 3:13,11 C"':''!:: - ~C. D\\IG~. P....i1! N/A JBG ,~!- ....~~ '" " PRt:Lli"l!r~!AR'( PLAI.JS ;: ~;..J ',:;7 :..:-=-~ ~:~ C:~~~-;-.=::J::T::>j i; '~~ ..~-----'''' CllARLOTIE . MEChLL'\13L-aG STOInI WATER SER\1CES 700 NORTH TRYO~ STREET CHARLOTIE, NC 28202 PH. (i04.)336.RAlN FAX (iO.n336-3S46 McALPINE CREET AT 5ARDI5 ROAD 5TREAM 5TABIUZATION PROJECT CHARLOTTE. NORTH CAROUNA CONCEPTUAL DE51GN PLAN 5HEET ",,!U Ot' 2 4 12+ 11 TIE INTO EXISTING GRADE GLIDE 1 A 568 564 PROPOSED BACK OF BENCH 560 556 i , , PROPOSED FRONT -OrBENCMI , I 552 548 544 , ____'________'~NTOEXISTING CHANNEL, 540 -60 -40 -20 o 12+48 TIE INTO EXISTING GRADE GLIDE 1 B 568 564 PROPOSED BACK OF BENCH 560 556 _P.ROt'OSED_ERONI' . ' OF BENCH I -i---- 552 568 , ~ 564 560 f : 556 i i I 552 , ._--. IL 548 , 544 540 20 40 60 , :t -- ------~ -= :-t- i , ' , ' , , , , , , , ' 548 ,--;----:--:--!--i--,~ --,---;-----, '../"" -', ~ I --_'-_TIE-INTO_EXISTlNG_ CHANNEL 544 -60 -40 -20 o HORIZONTAL SCALE: 1"=20' VERTICAL SCALE: 1"=10' NOTE: .ALL CROSS-SEC11OOS FAClNG DOv.NSTREAll AND UPSTA110N .SEE TYt'ICAL CROSS-SEC110N (SHEET 5) FOR TREA'I!.IENT DETAIL .TOPOGRAPHICAL DATA CONSISTS Of nELD-RUN t.lERGED 'MTH COUNTY PROVIDED GIS DATA 20 40 L: \Pro;cd? \0505C \0505./1 \ Oc?;on \ Plan? \E?a=.dwo Ju108. ZOO''5 - 9:4-9ar/ 568 564 560 556 552 548 544 60 568 564 '~-, 560 556 552 548 544 TIE INTO EXISTING GRADE 568 PR9pOSED B~CK OF BENCH 564 560 13+ 25 RIFFLE 2 556 , , i ----P.ROEOSED...ERONT OF BENCH I ",t:,. '.,. ' , , , I : ! Iii --- . ! ; 556 552 568 E!~" ' I , , , , , ' , ' , ' i 564 560 552 548 , , !_-'~' -----~ --..--'---------- 548 TIE INTO EXISTING CH-AN-NEL 544 -60 -40 -20 14+03 TIE INTO EXISTING o Ii -- , , ,~ '~: . . --;-- ,------:-/-: . I /--~- -- , 7- ' , . ' , , . ; , I l ! ! : ! ; . , , ~ ~,----,--- , -40 -20 o EXISTING PROFILE PROPOSED PROFILE 20 FLANS FRfFARfD BY: ~o~f;~ ;M7~. TI"'fCM 5'".red. Suite 2X1 ~ ~OCH CAA.:)UNA. ~2:J3 NO. OArr: "" 20 40 544 40 568 564 560 556 552 548 544 ~. ~-~ - It::=. DVr..A o...rf N/A J5G ~. PRE~!r'/j~:.~.t,R\( ?'L.tJ~S ! I ~I::: ~7 :..;:::= P:;i:. c.::'~:I;:::J,:T,,::::. CliARLOTIE, MEChLEl\13URG STOIn! WATER SER\1CES 700 NORTIl TRYON STREET CIL\RLOTTE. NC 28202 PI!. (704)336,F.AIN FAX (704)336,3846 McALPINE CREET AT SARDIS ROAD STREAM STABIUZATION PROJECT CHARLOTIE, NORTH CAROUNA CONCEPTUAL DESIGN PLAN SHEET 3 4 ffi ROCK VANE \QI7 NTS CLASS I STONE CLASS B STONE CHANNEL BED ON-SITE COARSE ALLUVIUM TYPE 2 FILTER. FA5RJC S PLAN VIEW SECTION A-A' HEADER ROCK l (It) S (it) H (it) G ('io) TOp OF BAt,K/5ANKFULL G_ WATER FLOW PROFILE 5-5' -c:;.:.:i;~\ STi6\M BED ELEVATION FIRST HEADER. WILL pR.OJECT ABOVE STREAM BED STRUCTURE DIMENSIONS 50 10 27 7,5 J-HOOK ---------------------------------------------- @ NTS ClASS I STONE L (ft) B (it) S (it) F (de<j) G % ClASS B STONE r CHANNEL BED A' - -1"~ ----/ ~-- ClASS I STONE MiN. 18' nilCK FilTER FABRJC PLAN VIEW SECTION A - A' ---1--------------------------------------------- PROFILE 5-5' @FULL BANK STABILIZATION TYPE 8 D I NT5 TREES NOT INDICATED TO BE REMOVED SHALL BE FROTECTED DURJNG CONSTRUCTION IN ACCORDANCE WITH FLANS AND SpECIFiCATIONS EXiSTING TREES IN EXCAVATION AKfAS TO BE REMOVED UNLESS OTHERNISE DIR.:CTED EXCAVATE I GRADE SLOpE EXISTI NG CHANNEL BANK !"1.ANVlrN ~~; :::/J ..... '" ",,:.. " :~.:' .... :, -.\ ",' L.; \rlo}d~ \CXX. \O:>O:JJI\Dc.qn\P/on!, \D~O:.J..; JIi 08. ZXJ':>. 9...of8a-t J-HOOK DIMENSIONS S3 1(; 10 20 5 SLOpE SILL ROCKS TO 1/2 BANKFULL FOOTER BOULDER / FLANS FRfFARfD BY: BUCK ENc;INEERING~ 1......75. Tryon 5tTeet Suite 2:::>0 ~m. NORTH CAAOUNA 2620.3 ICJ. OI.Tt "" TOp OF STREAM BAtK ~ B' G_ WATER FLOW '"~ ;.:;;.~ ~ 5TREAM BED ELEVATION ~.. ,. . ,,''--. ST~ORM,. CHA~LOTTE - MECKLENBURG STORM W A ,oR SER" CES U!lrrvO 700 NORTIi TRYON STREET nlU.lJJ.l. CHARLOTTE. N C 26202 . - ~PH. (704)336-RAIN FAX (704)336-3646 ~ kl:C. OWG5. O"TC McALFlNE CRfET AT SARDIS ROAD STREAM STABIUZATION PROJECT CHARlOTTE. NORTH CAROUNA DETAILS "-/A. JBG 4 4 Mecklenburg County No. INVOICE NO. P.O. NUMBER DESCRIPTION AMOUNT 20050727 MWQC -MCALPINE @ PROVIDENCE 475.00 . , Check Date 07/27/05 Check Number 00020005232 Vendor Number NCD1093310F Total 475.00