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HomeMy WebLinkAbout20050940 Ver 1_Complete File_20050527MEMORANDUM TO: John Dorney Regional Contact: Kevin Barnett Non-Discharge Branch WQ Supervisor: Boger Edwards Date: SUBJECT: WETLAND STAFF REPORT AND RECOMMENDATIONS Facility Name Dix Creek EWP 2005-123 Project Number 05 0940 Recvd From APP Received Date 5/27/05 Recvd By Region Project Type EWP County Buncombe County2 Region Asheville Certificates Stream Permit Wetland Wetland Wetland Stream Class Acres Feet Type Type Impact Score Index Prim. Supp. Basin Req. Req. N?V37 Stream P7 O N ? 5-42 ?? 40,306. ?- 200.00 O Y ON r?r-?- Mitigation Wetland MitigationType Type Acres Feet Is Wetland Rating Sheet Attached? Q Y 0 N Did you request more info? Q Y N Have Project Changes/Conditions Been Discussed With Applicant? Q Y Q N Is Mitigation required? Q Y * N Recommendation: Q Issue * Issue/fond O Deny Provided by Region: Latitude (ddmmss) 353643 Longitude (ddmmss) 823945 Comments: Issued - ARO - 06/10/2005 - KHB cc: Regional Office Central Office Page Number 1 Triage Check Dist Date: 06/08/05 Project Name: Dix Creek EWP 2005-123 DWQ#: 05-0940 County: Buncombe Kevin Barnett, Asheville Regional Office To: 30-day Processing Time: 5/27/05 to 6/27/05 From: Cyndi Karoly Telephone : (919) 733-9721 The file attached is being forwarded to your for your evaluation. Please call if you need assistance. ? Stream length impacted ? Stream determination Wetland determination and distance to blue-line surface waters on USFW topo maps ? Minimization/avoidance issues ? Buffer Rules (Neuse, Tar-Pamlico, Catawba, Randleman) ? Pond fill Mitigation Ratios ? Ditching ? Are the stream and or wetland mitigation sites available and viable? ? Check drawings for accuracy Is the application consistent with pre-application meetings? ? Cumulative impact concern Comments: As per our discussion regarding revision of the triage and delegation processes, please review the attached file. Note that you are the first reviewer, so this file will need to be reviewed for administrative as well as technical details. If you elect to place this project on hold, please ask the applicant to provide your requested information to both the Central Office in Raleigh as well as the Asheville Regional Office. As we discussed, this is an experimental, interim procedure as we slowly transition to electronic applications. Please apprise me of any complications you encounter, whether related to workload, processing times, or lack of a "second reviewer" as the triage process in Central had previously provided. Also, if you think of ways to improve this process, especially so that we can plan for the electronic applications, let me know. Thanks! F@[Rowmp MAY 2 7 2005 Office Use Only: DENR - WATER QUALITY Form Version May 2002 15'ETIANDS AND STOMAYATER BRANCH USACE Action ID No. DWQ No. (If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".) 1. Processing 1. Check all of the approval(s) requested for this project: ® Section 404 Permit ? Riparian or Watershed Buffer Rules ? Section 10 Permit ? Isolated Wetland Permit from DWQ ® 401 Water Quality Certification 2. Nationwide, Regional or General Permit Number(s) Requested: Nationwide 37 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 Wetlands Restoration Program (NCWRP) is proposed for mitigation of impacts (verify availability with NCWRP prior to submittal of PCN), complete section VIII and check here: ? 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 Concern (see the top of page 2 for further details), check here: ? II. Applicant Information Owner/Applicant Information Name: John Creighton /Assistant County Manager/Planning Director Mailing Address: 46 Valley Street Asheville. NC 28801 Telephone Number: 828-250-4835 E-mail Address: Fax Number: 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: Mike Osborne Company Affiliation: CH2M HILL Mailing Address: 4824 Parkway Plaza Blvd. Suite 200 Charlotte, NC 28217 Telephone Number: 704-329-0073 ext 252 Fax Number: 704-329-0141 E-mail Address: mike.osbome@ch2m.com Page 1 of 10 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: Dix Creek EWP 2005-123 2. T.I.P. Project Number or State Project Number (NCDOT Only): NA 3. Property Identification Number (Tax PIN): 9619.01-17-4796.000 4. Location County: Buncombe Nearest Town: Asheville Subdivision name (include phase/lot number): NA Directions to site (include road numbers, landmarks, etc.): From I-240, Exit 3 onto US-74 ALT West/US-19 South/US-23 South for approximately 1.5 miles. Turn Right on North Carolina Highway 63 - New Leicester Highway. Stay on New Leicester Highway for approximately 4.4 miles. Turn left onto Newfound Road. Turn left onto Dix Creek No. 1 Road. The site EWP 2005-123 is located near the intersection of Solomon Road and Dix Creek No. 1 Road. The address of the site is 297 Dix Creek One Road, Leicester, NC 28748. The site is owned by Charles Lloyd Webb. See Attachment 1 for site vicinity and parcel locations. 5. Site coordinates, if available (UTM or Lat/Long): 35°36'43.4"N 82°39'45.4"W (Note - If project is linear, such as a road or utility line, attach a sheet that separately lists the coordinates for each crossing of a distinct waterbody.) 6. Property size (acres) 4.16 7. Nearest body of water (stream/river/sound/ocean/lake): Dix Creek 8. River Basin: French Broad Page 2 of 10 (Note - this must be one of North Carolina's seventeen designated major river basins. The River Basin map is available at http://h2o.enr.state.nc.us/admin/maps/.) Describe the existing conditions on the site and general land use in the vicinity of the project at the time of this application: The proposed site consists of light residential uses. The stream and stream banks were heavily impacted during Tropical Storms Frances and Ivan. Extensive stream bank erosion threatens the stability of existing structures. 9. Describe the overall project in detail, including the type of equipment to be used: EWP 200-123 This project area includes approximately 200 linear feet of an unnamed tributary to Dix Creek adjacent to Dix Creek No. 1 Road. The project area is located at 35°3643.4"N 82°39'45.4"W. Highwater flows have severely eroded the banks. In this section of creek two property access roads are threatened by these conditions. Attachment 1 contains representative photos of the project area. Repairs in this reach of stream will involve the following: - Stabilize the channel in its pre-flood configuration using organic and rock structures - Reseed and plant woody vegetation The techniques that will be utilized for the proposed repairs at the EWP site listed above are described below. Streambank Repair When possible, excavation equipment will access streambank repair areas from the dry and will not track into the stream channel. Most of the steep eroded streambanks are opposite or adjacent to the debris removal areas. At these areas, the rocky material removed from the floodplain will be used to stabilize the stream bank, with the addition of large boulders along the toe of the slope as necessary to stabilize and protect the toe. Where suitable material is available, rock vane and root wads will be installed in the restored bank section to reduce bank stress and provide stability to the unconsolidated fill. An existing cross section and site specific design components are included in Attachment 1 for each of the impacted channel sections requiring stabilization. Drainage areas of project areas are also included in those attachments. The drainage area is used to determine the design storm peak flow using USGS Rural Regression equations for the Blue Ridge- Piedmont. Design storm velocity and shear stress values were also calculated. This information, in conjunction with the field investigation analysis, DSR notations, and agency guidance and regulations, are used to develop an appropriate streambank stabilization design. Additional information on general design features, erosion control practices and debris removal practices is included in Attachment 2. Equipment that may be used to accomplish the above listed tasks includes; rubber tired skidders, 15 ton dump truck, hydraulic track mounted excavator with thumb, and chainsaws. Page 3 of 10 10. Explain the purpose of the proposed work: The work addressed in this application is intended to improve post flood hydraulic capacity of the stream reaches discussed and stabilize severely eroded streambanks that are threatening structures or other property. The proposed actions are not intended to enhance existing conditions or restore stream reaches using natural channel design techniques. Such activities would require detailed engineering evaluation and design, which are beyond the intent of the EWP program. 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. NO VI. 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. The applicant must also provide justification for these impacts in Section VII below. All proposed impacts, permanent and temporary, must be listed herein, and must be clearly identifiable on an accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial) must 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 Page 4 of 10 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: Proposed impacts include limited streambed disturbances, debris removal, and streambank stabilization. 2. Individually list wetland impacts below: Wetland Impact Site Number (indicate on ma) Type of Impact* Area of Impact (acres) Located within 100-year Floodplain** (es/no) Distance to Nearest Stream (linear feet) Type of Wetland*** * List each impact separately and identify temporary impacts. 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 flooding. ** 100-Year tloodplains are identified through the Federal Emergency Management Agency's (FEMA) Flood Insurance Rate Maps (FIRM), or FEMA-approved local floodplain maps. Maps are available through the FEMA Map Service Center at 1-800-358-9616, or online at http://www.fenia.tov. *** List a wetland type that best describes wetland to be impacted (e.g., freshwater/saltwater marsh, forested wetland, beaver pond, Carolina Bay, bog, etc.) Indicate if wetland is isolated (determination of isolation to be made by USACE only). List the total acreage (estimated) of all existing wetlands on the property: None Total area of wetland impact proposed: NA 3. Individually list all intermittent and perennial stream impacts below: Stream Impact Length of Average Width Perennial or Site Number Type of Impact* Impact Stream Name** of Stream Before Intermittent? (indicate on ma) (linear feet) Im act (please secif ) EWP 2005-123 Streambank 200 UT to Dix Creek 1511 Perennial stabilization * List each impact separately and identify temporary impacts. Impacts include, but arc not limited to: culverts and associated rip-rap, dams (separately list impacts due to both structure and flooding), relocation (include linear feet before and after, and net loss/gain), stabilization activities (cement wall, rip-rap, crib wall, 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 must be included. ** Stream names can be found on USGS topographic maps. If a stream has no name, list as UT (unnamed tributary) to the nearest downstream named stream into which it flows. USGS maps arc available through the USGS at 1-800-358-9616, or online at www.usus.gov. Several intemet sites also allow direct download and printing of USGS maps (e.g., www.topozone.com, www.mapquest.com, etc.). Cumulative impacts (linear distance in feet) to all streams on site: 200 4. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic Ocean and any other water of the U.S.) below: Open Water Impact Area of Name Wat Type of Waterbody Site Number Type of Impact* Impact ) (if applicable) (lake, pond, estuary, sound, (indicate on ma) (acres) bay, ocean, etc.) Page 5 of 10 * List each impact separately and identify temporary impacts. Impacts include, but are not limited to: fill, excavation, dredging, flooding, drainage, bulkheads, etc. 5. 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.): NA Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond, local stormwater requirement, etc.): NA Size of watershed draining to pond: NA Expected pond surface area: NA 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. When at all possible equipment will be kept out of the stream channel, stream crossings will be minimized, and no excavation will be below the existing channel bed. When at all possible stream material will be moved from dry areas to banks, minimizing the movement of wet (or below water line) stream material. Creating wide, shallow channels will be avoided. Temporary and/or permanent herbaceous vegetation shall be planted on all bare soil within 15 days of ground disturbing activities. Rocky material shall not be used for bank stabilization above the normal high water mark. Large rocky material will be brought in to stabilize the toe of impacted streambanks where necessary. 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. Page 6 of 10 USACE - In accordance with the Final Notice of Issuance and Modification of Nationwide Permits, published in the Federal Register on March 9, 2000, 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 NCWRP 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.us/ncwetlands/stnnaide.htmi. 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 Wetlands Restoration Program (NCWRP). Please note it is the applicant's responsibility to contact the NCWRP at (919) 733-5208 to determine availability and to request written approval of mitigation prior to submittal of a PCN. For additional information regarding the application process for the NCWRP, check the NCWRP website at http://h2o.enr.state.nc.us/wM/index.htm. If use of the NCWRP is proposed, please check the appropriate box on page three and provide the following information: 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 Page 7 of 10 IX. Environmental Documentation (required by DWQ) Does the project involve an expenditure of public (federal/state) funds or the use of public (federal/state) land? Yes ® No ? 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 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 213 .0233 (Neuse), 15A NCAC 213 .0259 (Tar-Pamlico), 15A NCAC 213 .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please identify )? Yes ? No ® If you answered "yes", provide the following information: 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 multipliers. Zone* Impact Multiplier Required (square feet) Mitigation Page 8 of 10 1 3 2 1.5 Total R Zone 1 extends out 30 feet nemendicular from near bank of channel: Zone 2 extends an additional 20 feet from the edge of Zone 1. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e., Donation of Property, Conservation Easement, Riparian Buffer Restoration / Enhancement, Preservation or Payment into the Riparian Buffer Restoration Fund). Please attach all appropriate information as identified within 15A NCAC 2B .0242 or.0260. XI. Stormwater (required by DWQ) Describe impervious acreage (both 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. Imperviousness will not change. Erosion and sedimentation prevention and control will be maintained throughout this project primarily through: proper water management, construction sequencing, proper staging and stockpiling of materials, and the maintenance, at all times, of suitable channel capacity for expected flow events. Equipment, fuels, lubricants, or other potential sources of water pollution will not be stored in areas that could be flooded during this project. 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. Portable facilities shall be provided at the work site. XIII. Violations (required by DWQ) Is this site in violation of DWQ Wetland Rules (15A NCAC 2H.0500) or any Buffer Rules? Yes ? No Is this an after-the-fact permit application? Yes ? No XIV. 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 Page 9 of 10 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 Applicant nt' ibnature "' Da(e (Agent's signature is va ' only if an authorization letter from the applicant is provided) Page 10 of 10 Attachment 1- DSR 123 Ia. Vicinity Map lb. Site Map lc. Site Photos Id. Cross Section and Site Specific Design Page le. Drainage Areas Access Agreements /? < ?1? ? .'i/j - - -_ ?--;1 ?;' / , ,'? + 1 tP r q/ a \-?E?? - ?` i ???•? - R?I ??i t ??4 C ?? r'? DIN Cretk/Chap f 1 ._ \ I \I .B'.. i •-? 1. ? /. f J i ?.?./ r / Geor etoWn N j ? } 123 777 ,' N, .5d1 QMV.120 , N u yC e< \o M /( ? ..' / v ? • ., . 291 In 68ilt ore 7 Corinltr\Chr %/?//a?' ? EK ry e ?, cS3TeR. ?C= UCCA.. I%q ..-:- _ Fr '? `Lf i 631 a SplVey; MtnO 2416 y ?+ Lookout,4Radio t er X • n Spivey Gap tower >3J/7 J 3116 ? " {) / . 1 (D ' (D L? MS t 3 `Hitler Mountain CMS 00 Starnes Cove Lake I \ U? ?? a ?' / Luther Gap z-? )7, Knob. High Tpp p ^? C 1 (r?=Js ?T 6MS 636 ; ?-=?? - ?/ -? -f •? 3528 HIghl"Potnt" I n \ Palk \ f ; o? a `_ \ ark _ _' Ced d .? - _\ =rte`-,. ??? 1????!. .. ? ? J • !4( j_l r' ? \\ r '\ ?1,? L z PicQah View . ??, v / u• /1161 CFI. H N ?L r e ,SSA • >° T SHEV oa { ?% o •'T ? W ?\. i?r 1? 4II .. ? • •?r --k .,. V ? • Sy ? ! ? .- I Mount Pisgah •?? ',I a ,-'?Canit Academy Starnes Cove Ch S .r 0 1,250 2,500 5,000 Feet Attachment 1a DSR 123 -Newfound Creek Watershed Buncombe County, NC Charles Webb - Vicinity Map ® CH2MHILL "MW Attachment 1b DSR 123 - Newfound Creek Watershed Buncombe County, NC Charles Webb Parcel 4796 Attachment 1c DSR 123 - Newfound Creek' Buncombe County, P Charles Webb - Photo A,. = f T •}? ,may. ? .Lt'?1 w Attachment 1d DSR 123 - Newfound Creek Watershed Buncombe County, NC Charles Webb existing cross section 7 6 5 4 ?. a? a? 3 a? Z 2 = 1 0 4 -1 Width (feet) Right Top of Bank Left T op of Bank -Wate r Surface 3 5 3 0 0 1 1 Buncombe Co., Newfound Watershed - Dix Creek, DSR 123 Design Parameters Apply to Site X X X X X X X X X X Figure Title 1 BANK STABILIZATION TYPICAL SECTION 2 BANK STABIt.IZAT10N WITH ROCK TOE TYPICAL SECTION 3 STREAM CHANNEL BENCH TYPICAL SECTION 4 TYPICAL J HOOK DETAIL 5 TYPICAL CROSS VANE DETAIL 6 SUGGESTED VEGETATION UST 7 STABILIZATION PLANTING PLAN 8 BENCH PLANTING PLAN 9 LIVE STAKE DETAIL 10 DEAD STOUT STAKE DETAIL 11 EC FABRIC INSTALLATION DETAIL 12 EC FABRIC ANCHOR DETAIL 13 STABILIZATION CONSTRUCTION ENTRANCE DETAIL 14 TEMPORARY SILT FENCE DETAIL 15 TEMPORARY STREAM CROSSING DETAIL 16 LAND QUALITY STOCK PILE LAYOUT 17 LAND QUALITY STREAM CROSSING LAYOUT 18 LAND QUALITY DEBRIS REMOVAL LAYOUT NOTE 1: Provide headwall and vringwall protection at 2 driveway culverts with rock NOTE 2: Remove sediment from exlsltng culverts. Notes and/or Measurements A= 1.2 FT. 140 LF of Icft bank and 60 LF of right bank NOTE 1 & 2 EC fabric = 4.5 Ib/ft2 t"'Sls«.ln "? CA Q •e .e . v 4 a ?t1 Initials KSB Date 5/912005 Legend der era Ch A DSR Project Site Interstate Highway Major Road o Major Hydrography Subwatershed r U Municipality Co County Boundary 0 v s? DSR123 DSR123 K Drainage Area 0.44 sq. miles -Y U U x O' Sh 6rad ch Sm?rh reek 0 0.25 0.5 1 Miles Attachment 1 e DSR 123 - Newfound Creek Watershed `-?--? SILL Buncombe County, NC A Charles Webb - Drainage Area Map PERMIT FOR EMERGENCY WATERSHED PROTECTION (EWP) The undersigned landowners hereby grant permission to Buncombe County and the Buncombe County Soil and Water Conservation District and/or their agents to enter upon our land for the purpose of repairing the flood damage of stream channels and stream banks in the New"01 cxe watershed. This permit includes the right to spread soil, remove and dispose of debris, install needed measures, seed and mulch, and perform similar emergency watershed protection work necessitated by the floods of September, 2004. This permit also includes the right of ingress and egress on the land for the purpose of maintaining or inspecting maintenance of the emergency works for the period of 1 year from the date of completion. Work areas covered by this permit are sketched on the reverse of this form or on an attached sheet. Si ned Date Signed Date ? _, o??? you S' Attachment 2 General Design Notes Typical Design Drawings Debris Removal SOP General Notes The Contractor shall make his own determination of the existing subsurface conditions. In areas where proposed construction may conflict with existing utilities, the Contractor shall take all necessary precautions to avoid damage to the utilities. Notify and locate all impacted utilities at least 48 hours prior to excavation. Any damage sustained to utilities shall be repaired by or under the direction of the utility owner at the Contractor's expense. All existing facilities, including but not limited to sidewalks, roads, lawns, landscape vegetation, etc., inside and outside of construction limits that are disturbed under this contract shall be reestablished and/or reconstructed to the original condition at the Contractor's expense. Construction Sequence 1. Begin work at the upstream end of the project reach. 2. Construct proposed structures according to the plans and specifications. 3. Grade stream banks to proposed grade, and tie into existing banks upstream and downstream. 4. Overbank areas (beyond top of bank) adjacent to the project reach shall be graded for positive drainage toward the stream. 5. Apply temporary stabilization to the disturbed areas at the end of each work day. 6. Repeat steps 1 through 5 for each segment of the project reach, working downstream. Site Stabilization 1. Conduct soil test to confirm necessary lime and fertilizer amendments. Appropriate lime and fertilizer shall be applied prior to seeding and incorporated to a depth 3 to 5 inches below the surface. 2. Temporary stabilization will be applied to all disturbed areas on a daily basis. Areas shall be seeded with rye grass at a rate of 15 lbs./ac. and long straw or hay mulched. Straw shall consist of thoroughly threshed wheat, rye or oat straw, reasonably bright in color, and shall not be musty, moldy, caked, decayed, or excessively dusty and shall be free of noxious weed seeds. 3. Permanent soil stabilization shall be completed within 7 calendar days of initial soil disturbance or re-disturbance. Planting and seeding shall be incorporated into the subsoil at the rates prescribed on Figures 6, 7, and 8. Contractor shall follow NCDWQ Guidelines for Riparian Restoration, http://h2o.enr.state.nc.us/wrp/pdf/buffers.pdf 4. All earth fill in excess of 1 ft depth should be installed in lifts of maximum 6-inches and mechanically compacted. 5. All rock used for bank stabilization and in-stream structures shall be 3 ft to 4 ft angular rock. 6. Erosion Control (EC) Fabric shall be woven coir mat, secured with dead stout stakes, and shall meet the following standards: 50% open area (maximum) 0.5 inch maximum opening size 4.5 lbs. per sq. foot maximum sheer stress 10 fps minimum velocity CLT/GENERAL NOTES_NF.DOC USE OR DISCLOSURE OF DATA CONTAINED ON THIS SHEET IS SUBJECT TO THE RESTRICTION ON THE TITLE PAGE OF THIS PROPOSAL. 7. Filter fabric shall be Amoco Propex 2002 woven geotextile or equivalent. Cut excess filter fabric so no fabric is visible after installation. 8. Seeded areas not specified for coir fabric, shall be mulched with long straw or hay mulch immediately after seeding areas at a rate of 2 tons/acre (uniform loose depth of 1" to 2"). Straw shall consist of thoroughly threshed wheat, rye or oat straw, reasonably bright in color, and shall not be musty, moldy, caked, decayed, or excessively dusty and shall be free of noxious weed seeds. Mulch shall be secured with biodegradable netting (Robex Super Flow or Equal). 9. The Contractor shall be responsible for maintaining seeded areas until 95% vegetative cover is established. Should any seeded area fail to germinate, or washing of any areas occur requiring re-establishment of seeding, the Contractor shall replace any lost soil material and re-seed and re-mulch such areas at Contractor's expense. Standard Erosion and Sediment Control Notes 1. The Contractor shall protect all points of construction ingress and egress by installing a temporary construction entrance as shown in details to prevent the deposition of materials onto public roads. All materials deposited onto public roads shall be removed immediately. 2. The Contractor shall re-vegetate or restore access roads (including construction entrance) to match pre-construction conditions. 3. The Contractor shall inspect daily and maintain continuously in an effective operating condition all erosion and sediment control measures until such times as they are removed with prior permission from Engineer or agency inspector. 4. The Contractor shall protect trees and landscaping not marked for disposal from damage. Any damage that occurs shall be repaired at the Contractor's expense. 5. Fencing shall be maintained for animal containment. The Contractor shall provide temporary fencing to allow for execution of the work. The Contractor shall keep construction equipment away from livestock and take all precautions to prevent injury to animals. CLT/GENERAL NOTES NF.DOC USE OR DISCLOSURE OF DATA CONTAINED ON THIS SHEET IS SUBJECT TO THE RESTRICTION ON THE TITLE PAGE OF THIS PROPOSAL PROPOSED GF FLOW NOTE: HEIGHT "A" IS MEASURED FROM DEEPEST POINT IN CHANNEL CROSS-SECTION DRAWN: GMH TITLE FIGURE PROJ. MANAGER: JMO DATE: 512005 CH2MHILL 4824 PARKWAY PLAZA BOULEVARD SUITE 200 CHARLOTTE, NC 28217 BANK STABILIZATION TYPICAL SECTION N TS 1 EXISTING TOP OF BANK ^T ^^ ^^ EXISTING TOP OF BANK PROPOSED GRADE NOTES: 1. HEIGHT "A" IS MEASURED FROM DEEPEST POINT IN CHANNEL CROSS-SECTION. 2. FILTER FABRIC SHALL BE AMOCO PROPEX 2002 WOVEN GEOTEXTILE OR EQUIVALENT. LAY FILTER FABRIC UNDER TRENCH ROCK AND UP BEHIND ROCKS. CUT EXCESS FILTER FABRIC SO NO FABRIC IS VISIBLE AFTER INSTALLATION. BACKFILL WITH WELL-DRAINING SOIL (USE NATIVE MATERIAL WHENEVER POSSIBLE). MIN. OVERLAP OF COIR OVER FILTER FABRIC OF 12". DRAWN: GMH PROJ. MANAGER: JMO DATE: 5/2005 CH2MHILL 4824 PARKWAY PLAZA BOULEVARD SUITE 200 CHARLOTTE, NC 28217 TITLE BANK STABILIZATION WITH ROCK TOE TYPICAL SECTION NTS FIGURE 2 ?.i.i?.CUT" ' 2 MIN. OF EXPOSED I / \ \ i :<< ROCK l\ 1 „' j' 3 MIN ROCK TOE . (NOT STEEPER) 2' MIN. OF ROCK EMBEDDED IN BANK EC FABRIC SEE FIGURE 7 ? BASE FLOW A 1 2? FILTER FABRIC EXISTING STREAMBED KEY IN ROCK TOE ONE ROCK DIAMETER 4' MIN. EXISTING TOP OF BANK EXISTING GRADE PROPOSED GRADE NOTES: 1 ?\ 3 MIN. (NOT STEEPER) EC FABRIC SEE FIGURE 7 1. HEIGHT "A" IS MEASURED FROM DEEPEST POINT IN CHANNEL CROSS-SECTION. 2. FILTER FABRIC SHALL BE AMOCO PROPEX 2002 WOVEN GEOTEXTILE OR EQUIVALENT. LAY FILTER FABRIC UNDER TRENCH ROCK AND UP BEHIND ROCKS. CUT EXCESS FILTER FABRIC SO NO FABRIC IS VISIBLE AFTER INSTALLATION. BACKFILL WITH WELL-DRAINING SOIL (USE NATIVE MATERIAL WHENEVER POSSIBLE). MIN. OVERLAP OF COIR OVER FILTER FABRIC OF 12". DRAWN: GMH PROJ. MANAGER: JMO DATE: 5/2005 -CUT\.? GRADE TO DRAIN I. (1% MAX.) I FILL STREAM CHANNEL BENCH EXISTING STREAMBED FILTER FABRIC KEY IN ROCK TOE ONE ROCK DIAMETER 4' MIN. CH2MHILL 4824 PARKWAY PLAZA BOULEVARD SUITE 200 CHARLOTTE, INC 28217 TITLE 2 71 STREAM CHANNEL BENCH TYPICAL SECTION N TS T BASE FLOW A FIGURE 3 BANKFULL ELEVATION B 9 FLOW DIRECTION (( G ((\ ?y1 BOULDERS CROSS SECTION VIEW BOULDER BANKFULL ELEVATION FOOTER - `-CHANNEL BED NOTES: PROFILE VIEW 1. BOULDER SIZE IS 4' MINIMUM OR AS SPECIFIED ON PLANS. 2. WRAP FILTER FABRIC AROUND FOOTER STONES AND BACKFILL WITH TYPE 3 RIPRAP OR EOUNALENT (ON SITE COBBLE WHEN AVAILABLE). DRAWN: GMH PROJ. MANAGER: JMO DATE: 5/2005 CH2MHILL 4824 PARKWAY PLAZA BOULEVARD SUITE 200 CHARLOTTE, NC 28217 GAPS "N (1/4-1/3 ROCK DIA.) SCOUR PLAN VIEW /I I W SOURCE: APPLIED ECOLOGICAL SERVICES, INC TITLE FIGURE TYPICAL J HOOK DETAIL 4 NOT TO SCALE 5'MIN. -?? 5'MIN. BANKFULL WIDTH I SILL -.-.-.-.-.-.-. 0 ...-.-.-.-.-. BOULDERS -E`- ULL IL r LEVATION L 5'M;N. ---J CROSS SECTION VIEW BANKFULL ELEVATION FLOW -:?2-77 DIRECTION \ \ BOULDERS CHANNEL BED FDUTER \? 2 ? -• POOL '?, PROFILE VIEW NOTES: 1. BOULDER SIZE IS 4' MINIMUM ORAS SPECIFIED ON PLANS. 2. WRAP FILTER FABRIC AROUND FOOTER STONES AND BACKFILL WITH TYPE 3 RIPRAP OR EQUIVALENT (ON SITE COBBLE WHEN AVAILABLE} DRAWN: GMH PROJ. MANAGER: JMO DATE: 5/2005 CH2MHILL 4824 PARKWAY PLAZA BOULEVARD SUITE 200 CHARLOTTE, NC 28217 FLOW J DIRECTION J z /1 z a a m m I I 20' z 213 W 1 O SCOUR POOL PLAN VIEW TRENCHED IN 3' MIN. AND COVERED SILL MUST BE TIED IN TO BANKFULL ELEVATION SOURCE: APPLIED ECOLOGICAL SERVICES, INC TITLE FIGURE TYPICAL CROSS VANE DETAIL 5 NOT TO SCALE (Mountain Region Suggested Vegetation List ' TREES S P F SMALL TREES/SHRUBS S P F HERBACEOUS VEGETATION FOR SEED MIX Betula lenta Alnus serrulata Arisaema triphyllum Scirpus validus cherry birch x x tag alder x x x jack-in-the-pulpit soft stem bulrush Betula nigra Amelanchierarborea Asclepias incarnata Sparganium americanum river birch x x serviceberry x x swamp milkweed bur-reed Carya corditormis Aronia arbutitolia Carex crinata Thelypteris palustris bitternut hickory x x x red chokeberry x x fringed sedge marsh fern Carya ovata Asimina triloba Carex intumescens Uniola latitolia shagbark hickory x x x common pawpaw x x bladder sedge river oats Diospyros virginiana Calycanthus tloridus Carex lupulina Vernonia noveboracensh persimmon x x x sweet-shrub x x hop sedge ironweed Fraxinus pennsylvanica Carpinus caroliniana Carex lurida Leersia oryzoides green ash x x ironwood x x lurid sedge rice cutgrass Halesia caroliniana Cornus alternitolia Carex scoparia Lobelia cardinalis silverbell x x alternate leaf dogwood x x broom sedge cardinal flower Nyssa sylvatica Cornus amomum Carex stricta Lobelia siphilitica blackgum x x x silky dogwood x x tussock sedge great blue lobelia Platanus occidentalis Corylus americana hazel- Carex vulpinoidea Ludwigia alternitolia sycamore x x nut x x fox sedge bushy seedbox Prunus serotina Hamamelis virginiana Chelone glabra Panicum virgatum black cherry x x x witch-hazel x x turtlehead switchgrass Salix nigra Ilex verticillata Cyperus strigosus Polygonum sagittatum black willow x x winter berry x x x umbrella sedge tearthumb Tilia heterophylla Leucothoe axillaris Elymus hystrix Scirpus atrovirens white basswood x x doghobble x bottlebrush grass green bulrush I I I Lindera benzoin Eupatorium tistulosum Scirpus cyperinus S - Shade spicebush x Joe-pye-weed woolgrass P = Partial Sun - Lyonia ligustrina x Eupatorium pertoliatum Juncus ettusus F_. Fujl Sun ( Lyonia ligustrina boneset soft rush Magnolia tripetala x Impatiens capensis ( umbrella tree jewel-weed - _ - Physocarpus opulitolius - I - - _ - ninebark x x x - ------? -- j Rhododendron l periclymenoides _ _ --__ _ ( wild azalea x x I I 1 Rhododendron viscosum swamp azalea x x -? -- Rosa palustris I I swamp rose x x I I I _ Salix sericea silky willow Spirea latitolia x x I meadowsweet x j Symplocos tinctoria _ i sweet leaf x x M_ _ Viburnum cassinoides W ithe-rod x x x Xanthorhiza simplicissima yellow-root x ( ---- -- _ j - - --? - -- - - TITLE DRAWN: GMH SUGGESTED VEGETATION LIST D ATE: MANAGER: JMO PROJ. DATE: 5/2005 CH2MHILL FIGURE 4824 PARKWAY PLAZA BOULEVARD SUITE 200 6 CHARLOTTE, NC 28217 APPROX. WIDTH Of CHANNEL 3' J_ LIVE STAKE ZONE TO EDGE OF WATER PLANTING WIDTH WILL VARY TO LANDOWNER COMPLIANCE AND PROJECT SPECIFICATIONS. EXISTING SURFA ELEVATI ZONE I ZONE 2 SYMBOL HERBACEOUS SEEDING DESCRIPTION SYMBOL WOODY VEGETATION DESCRIPTION NATIVE TREE AND SHRUB SPECIES TO BE PLANTED A -TO BE SEEDED IMMEDIATELY WITH TEMPORARY RYE GRASS A DENSITY OF 436 TREES/ACRE, WHICH IS AT 15 LBS/ACRE SEEDING RATE. SUFFICIENT TO PROVIDE 320 TREES/ACRE -FOLLOWING CONSTRUCTION, AREA TO BE SEEDED WITH A NATIVE, PERMANENT GRASS/HERO MIXTURE AT 15-20 LBS/ACRE SEEDING RATE. ® AT MATURITY. FOLLOW NCDWO GUIDELINES FOR RIPARIAN BUFFER RESTORATION. -SHRUB SPECIES INCLUDE BUT ARE NOT LIMITED TO: -HERB/GRASS SPECIES INCLUDE BUT ARE NOT LIMITED TO: Alnus serratula, Cephalanthus occldentalis, Agrostis alba Carox spA, Dactylis glomerata Cornus stricta, Rhododendron maximum, salix , , serecfa. Sambucus canadensis, etc. Panicum spp., Pennisetum g/aucum, Secale cereale, ETC. -TREE SPECIES INCLUDE BUT ARE NOT LIMITED TO: LIVE STAKES TO INCLUDE Cornus spA and Acer spp., Betula spA, Fraxinus spp., Juglands Safix serica Nigra, Liriodendron Tulipifera., Pinus strobus., LIVE STAKES SPACED ON 2' CENTERS Platanus occidentalis., Robinla Pseudoacacla., etc. -TO BE SEEDED IMMEDIATELY WITH TEMPORARY RYE GRASS. -FOLLOWING CONSTRUCTION, AREA TO BE SEEDED WITH A NATIVE, PERMANENT GRASS/HERB MIXTURE AT 15-20 LBS/ACRE SEEDING RATE. AT LEAST 3 SPECIES OF TREES AND 5 SPECIES OF ?NlnTCC• SHRUBS SHOULD BE USED. -TREE/SHRUB/GRASS SPECIES LISTED ARE SUBJECT TO CHANGE DUE TO AVAILABILITY FROM LOCAL NURSERIES AND FORESTRY SUPPLY STATIONS. SUBSTITUTION MUST BE APPROVED BY ENGINEER. SOURCE: ALTAMONT ENVIRONMENTAL, INC. DRAWN: GMH PROJ. MANAGER: JMO DATE: 5/2005 CH2MHILL 4824 PARKWAY PLAZA BOULEVARD SUITE 200 CHARLOTTE, NC 28217 O\ EXISTING STREAMBED TITLE STABILIZATION PLANTING PLAN FIGURE 7 APPRox. WIDTH OF CHANNEL S' LIVE STAKE ZONE TO EDGE OF WATER PLANTING WIDTH WILL VARY TO LANDOWNER COMPLIANCE AND PROJECT SPECIFICATIONS. ZONE I ZONE 2 SYMBOL HERBACEOUS SEEDING DESCRIPTION SYMBOL WOODY VEGETATION DESCRIPTION NATIVE TREE AND SHRUB SPECIES TO BE PLANTED AT -TO BE SEEDED IMMEDIATELY WITH TEMPORARY RYE GRASS A DENSITY OF 436 TREES/ACRE, WHICH IS AT 15 LBS/ACRE SEEDING RATE. SUFFICIENT TO PROVIDE 320 TREES/ACRE -FOLLOWING CONSTRUCTION, AREA TO BE SEEDED WITH A NATIVE PERMANENT GRASS/HERB MIXTURE AT AT MATURITY. FOLLOW NCDWO GUIDELINES FOR RIPARIAN BUFFER RESTORATION. , 15-20 LBS/ACRE SEEDING RATE ® -SHRUB SPECIES INCLUDE BUT ARE NOT LIMITED TO: . -HERB/GRASS SPECIES INCLUDE BUT ARE NOT LIMITED TO Alnus serratula, Cepha/anthus occldentalls, : Agrostis a/ba Carex spp Dactylis g/omerata Comus stricta, Rhododendron maximum, salix , ., , Panicum spp., Pennlsetum glaucum, Secals cereals, serecia, Sambucus canadensis, etc. -TREE SPECIES INCLUDE BUT ARE NOT LIMITED TO: ETC. STAKES To INCLUDE Cornus spp. and LIVE L IVE Acerspp., Betula spp., Fraxinus spp., Juglands serlca Salix Nigra, Lirlodendron Tulipitera., Pinus sirobus., LIVE STAKES SPACED ON 2' CENTERS Platanus occidontalls., Rob/nla Pseudoacacia., etc. -TO BE SEEDED IMMEDIATELY WITH TEMPORARY RYE GRASS. -FOLLOWING CONSTRUCTION, AREA TO BE SEEDED WITH A NATIVE, PERMANENT GRASS/HERB MIXTURE AT I5-20 LBS/ACRE SEEDING RATE. AT LEAST 3 SPECIES OF TREES AND 5 SPECIES OF SHRUBS SHOULD BE USED. *NOTES: -TREE/SHRUB/GRASS SPECIES LISTED ARE SUBJECT TO CHANGE DUE TO AVAILABILITY FROM LOCAL NURSERIES AND FORESTRY SUPPLY STATIONS. - PLANT ZONE I TO EDGE OF WATER - SUBTITUTION MUST BE APPROVED BY ENGINEER SOURCE: ALTAMONT ENVIRONMENTAL, INC. DRAWN: GMH PROJ.MANAGER: JMO DATE: 5/2005 CH2MHILL 4824 PARKWAY PLAZA BOULEVARD SUITE 200 CHARLOTTE, NC 28217 SEFLOW I EXISTING STREAMBED J TITLE I FIGURE BENCH PLANTING PLAN 8 EC FABRIC 2' MAX SPACING ESTABLISHED PLANT SHOWN FOR INFORMATION ONLY 0 0 GROUND 30" LIVE CUTTING O / (DORMANT) - TYP / DEAD STOUT STAKE TYP, SEE FIGURE 10 NOTE: INSTALL LIVE STAKE SO 2/3 LENGTH IS (MIN. 20") BELOW GROUND DRAWN: GMH PROJ. MANAGER: JMO DATE: 5/2005 CH2MHILL 4824 PARKWAY PLAZA BOULEVARD SUITE 200 CHARLOTTE, NC 28217 1 TITLE NTS LIVE STAKE DETAIL FIGURE 9 NOTES: 18' STANDARD (30" IF USED AT TOE OF SLOPE) 1. DEAD STOUT STAKES SHALL BE FASHIONED FROM UNTREATED 2" BY 4' (NOMINAL) BOARDS. 2. DEAD STOUT STAKES TO BE USED IN LIEU OF METAL OR OTHER STAPLES OR FASTENERS FOR SECURING EC FABRIC IN PLACE. 3. THE CONTRACTOR MAY USE'ECO-STAKE" 12" LENGTH OR APPROVED EQUAL IN LIEU OF DEAD STOUT STAKES FOR INSTALLATION IN THE CENTER OF THE EC FABRIC 'FIELD". 4. INSTALL EC FABRIC PER MANUFACTURER'S INSTRUCTIONS. DRAWN: GMH I TITLE I FIGURE PROJ. MANAGER: JMO DATE: 5/2005 CH2MHILL 4824 PARKWAY PLAZA BOULEVARD SUITE 200 CHARLOTTE, NC 28217 DEAD STOUT STAKE DETAIL 10 NTS SOIL BIOENGINEERING DEAD STOU TIE TO TYPICAL SECTION NOTES: 1. INSTALL ON ALL CUT AND FILL SLOPES AND NEAR BANK DISTURBED AREAS. 2. INSTALL PER MANUFACTURER'S INSTRUCTIONS. 3. EC FABRIC SHALL BE WOVEN COIR MAT WITH 50% OPEN AREA (max.), 0.5 INCH MAX. OPENING SIZE, 4.5 Ibs/sq. ft. MAX. SHEER STRESS, 10 fps MIN. VELOCITY. OF BANK ANCHOR. TYP SEE FIGURE 12 JND. TYP vP. DRAWN: GMH I TITLE I FIGURE PROJ. MANAGER: JMO DATE: 5/2005 CH2MHILL. 4824 PARKWAY PLAZA BOULEVARD SUITE 200 CHARLOTTE, NC 28217 EC FABRIC INSTALLATION DETAIL 11 NTS =:\CAD\NRCS\Cad-Details\Fig11.dwg, 05/12/2005 03:52:00 PM, PDF995 (temporary).pc3 TOP OF BANK EC FABRIC BASE FLOW DEAD STOUT STAKE SEE FIGURE 10 BACKFILL MAT WRAPS OVER TOP OF STAKE 0 TOE TOP OF BANK ANCHOR NOTES: 1. CLEAN SOIL BACKFILL SHALL BE USED TO SECURE DEAD STOUT STAKES AND FABRIC INTO THE SOIL 2. FOR TOE OF SLOPE APPLICATIONS, FABRIC SHALL BE INSTALLED AS TO OVERLAP TRENCH 6 DEAD STOUT STAKE TO POSITION THE FABRIC FOR INSTALLATION UP THE BANKS. 3. START INSTALLATION OF EC FABRIC AT TOE OF SLOPE WRAP FABRIC OVER TOE OF BANK ANCHOR AND PROCEED UP THE BANK TO THE TOP OF BANK ANCHOR. 4. FOR END OF GRADING APPLICATIONS, FABRIC SHALL BE INSTALLED PERPENDICULAR TO BANK AND ANCHORED PER TOP OF BANK DETAIL, WITH THE EXCEPTION THAT FABRIC DOES NOT EXTEND OUTSIDE OF TRENCH 6 FABRIC IS NOT EXPOSED. TOE OF BANK ANCHOR DRAWN: GMH I TITLE I FIGURE PROJ. MANAGER: JMO DATE: 5/2005 CH2MH1LL 4824 PARKWAY PLAZA BOULEVARD SUITE 200 CHARLOTTE, NC 28217 EC FABRIC ANCHOR DETAIL I 12 NTS 50' MIN. PUBLIC STREET EXISTING GROUND 7 0 SOIL STABILIZATION FABRIC UNDER 2'-3' WASHED STONE 50' MIN.' r LLI ' OR AS SPECIFIED ON PLAN SHEETS N U J CD a NOTES: 1. A STABILIZED ENTRANCE PAD OF 2"- 3' WASHED STONE OR RAILROAD BALLAST SHALL BE LOCATED WHERE TRAFFIC WILL ENTER OR LEAVE THE CONSTRUCTION SITE ONTO A PUBLIC STREET. 2. FILTER FABRIC OR COMPACTED CRUSHER RUN STONE MAY BE USED AS A BASE FOR THE CONSTRUCTION ENTRANCE. 3. THE ENTRANCE SHALL BE MAINTAINED IN A CONDITION WHICH WILL PREVENT TRACKING OR FLOWING OF SEDIMENT ONTO PUBLIC STREETS OR EXISTING PAVEMENT. THIS MAY REQUIRE PERIODIC TOP DRESSING WITH ADDITIONAL STONEAS CONDITIONS WARRANTAND REPAIR OR CLEANOUT OF ANY MEASURES USED TO TRAP SEDIMENT. 4. ANY SEDIMENT SPILLED, DROPPED, WASHED OR TRACKED ONTO PUBLIC STREETS MUST BE REMOVED IMMEDIATELY. 5. WHEN APPROPRIATE, WHEELS MUST BE CLEANED TO REMOVE SEDIMENT PRIOR TO ENTERING A PUBLIC STREET. WHEN WASHING IS REQUIRED, R SHALL BE DONE IN AN AREA STABILIZED WITH CRUSHED STONE. DRAWN: GMH TITLE FIGURE PROJ. MANAGER: JMO DATE: 5/2005 STABILIZED CONSTRUCTION CHZMHILL ENTRANCE DETAIL 13 4824 PARKWAY PLAZA BOULEVARD SUITE 200 CHARLOTTE, NC 28217 N.T.S. A _ B STEEL POST I 8' MAX. WIRE FENCING • STEEL POST WIRE FENCING z FILTER FABRIC 3 ? U J ? WOVEN FILTER FABRIC I _ N ? A B N 6' `ANCHOR SKIRT 6' MINIMUM IN UEU OF BURYING SKIRT, 6' OF /5 WASHED STONE MAY BE USED OVER TURNDOWN. SEE SECTION B-B. SECTION A-A STEEL POST WIRE FENCING FILTER FABRIC #5 WASHED STONE GENERAL NOTES: 1. FILTER FABRIC FENCE SHALL BE A MINIMUM OF 32' IN WIDTH AND SHALL HAVE A MINIMUM OF 6 LINE WIRES WITH 12' STAY SPACING. 2. WOVEN FILTER FABRIC BE USED WHERE SILT FENCE IS TO REMAIN FOR A PERIOD OF MORE THAN 14 DAYS. 3. STEEL POSTS SHALL BE 5'-0' IN HEIGHT AND BE OF THE SELF-FASTENER ANGLE STEEL TYPE. 4. WIRE FENCING SHALL BE AT LEAST #10 CAGE WITH A MINIMUM OF 6 LINE WIRES WITH 12' STAY SPACING. 5. TURN SILT FENCE UP SLOPE AT ENDS. 6. WIRE MESH SHALL BE MIN. 13 CAGE WITH MAXIMUM 12" OPENINGS. 7. WIRE AND WASHED STONE WILL BE REQUIRED WHEN: AT TOE OF SLOPES GREATER THAN 10 FEET VERTICAL (2:1 SLOPE) DRAWN: GMH PROJ. MANAGER: JMO DATE: 5/2005 MAINTENANCE NOTES: 1. FILTER BARRIERS SHALL BE INSPECTED BY THE FINANCIALLY RESPONSIBLE PARTY OR HIS AGENT IMMEDIATELY AFTER EACH RAINFALL AND AT LEAST DAILY DURING PROLONGED RAINFALL. ANY REPAIRS NEEDED SHALL BE MADE IMMEDIATELY. 2. SHOULD THE FABRIC DECOMPOSE OR BECOME INEFFECTIVE PRIOR TO THE END OF THE EXPECTED USABLE LIFE AND THE BARRIER STILL IS NECESSARY, THE FABRIC SHALL BE REPLACED PROMPTLY. 3. SEDIMENT DEPOSITS SHOULD BE REMOVED WHEN DEPOSITS REACH APPROX. HALF THE HEIGHT OF THE BARRIER. ANY SEDIMENT DEPOSITS REMAINING IN PLACE AFTER THE SILT FENCE IS REMOVED SHALL BE DRESSED TO CONFORM TO THE EXISTING GRADE, PREPARED AND SEEDED. 4. REMOVE SILT FENCE 1 YEAR PAST CONSTRUCTION. CHZMHILL 4824 PARKWAY PLAZA BOULEVARD SUITE 200 CHARLOTTE, NC 28217 N.T.S. TITLE TEMPORARY SILT FENCE DETAIL n „ 6 • ?y T ANCHOR SKIRT 6' MINIMUM SECTION B-B FIGURE 14 5' MAX. BANK HEIGHT / STREAM CHANNEL J SURFACE FLOW DIVERSION 1. USE #57 WASHED STONE 2. OMIT #57 WASHED STONE ON CHANNEL BOTTOM IF CROSSING A COBBLED BED STREAM. STONE OVER FILTER FABRIC (SEE NOTE 2) STONE APPROACH SECTION 5:1 MAX. SLOPE ON ROAD ORIGINAL STREAMBANK aq - X- STONE OVER ' FILTER FABRIC DRAWN: GMH PROJ. MANAGER: JMO DATE: 512005 CH2MHILL 4824 PARKWAY PLAZA BOULEVARD SUITE 200 CHARLOTTE, NC 28217 i 6" MIN. r TEMPORARY ACCESS AS SPECIFIED BY ENGINEER FILTER FABRIC 3. REMOVE STONE AND FILTER FABRIC AFTER CONSTRUCTION AND TIE INTO EXISTING GRADE. VEGETATE SITE ACCORDING TO PLANTING PLAN. TITLE FIGURE TEMPORARY STREAM CROSSING DETAIL 15 NTS srAEDTLER8 No. 937 811 E Engineer's Computation Pad 5o' 1 ? t ? . Sta 6; /: ze? Co•-rstrNc?%d? n 7?'rb•+C e. ? 5 ?oLli? ? Ie ? 4 ?Gf C011.5il.0L ltl.&r 13ars a3 rlecesso-7 v-/o ql `>'- r4 tio{? f'?rb?`?1 ZoN/ road, Svd. /?rov,o% S?e?;?ile? AetesS /bc7af . L',ross, .nc, Pie, «. /. ' wes/arc S/--ea-on '64,1 /,-- Gr+o/& Pi- ? wt3 ? ' ? '' Coh)trv/•' 1ce,7k 3 r No f- to SGc-lL Source: NC Land Quality Section Figure 16 4/r. r1or VSG4EDTiFRO ENo. 937 811 E ngineers Computation Pad 50r $7?.6%J;sec( CrD/1 S ?/NGI?'I?N ! we ?o?u l Alai l t? l + L / 4-rF -,4.4-,4.4e- cle4r:5 re-,a,-.a ra5c-111,5 1/7 0 IO$S 0 7C Go/7 V/ /7J PA 640/Gli %7/a // `G 1;2r'o?rO/•r•1 ;`o /O--oler-I 71-4 S7`/'e sain S e?'rsrt?+T ?Orl7l/a l /rIOOSN?L.' 5 6.'/1?Ce 61 *h/a 4 L L-1 5rL?l,/'/?,'ses,' A"//HOC G ? 5 ?p Artr . /3- f4ee /1 1 ,L, 1 lee C? t ? u3 G7 SeGur? O?f'b"• i Source: NC Land Quality Section Figure 17 VsrAEQTLER® No. 937 811 E Engineer's Computation Pad ex C- ` ? L?o?er 4ce-S r,,s r1 eG e 5sG?? ?o C&,v,-t rc--" tqC A4,.1 -DOG( 5 e e. t /"r0?,?e 54V ?i?T2 * ? ( /?G? {vim ?jea•-? /?o??%..«y t Si.++:f.'!.r ?o GUrrJ??N?r`tsr+ Er'T?o''?C. t t / e rnv ?. 4 rect f i r r ?'lea5 is /?G J/ S ?u {?er Z o rr c TrOrr r(7??Prl 4r o %j a ?? lc - - - -- - - - - - - - Log S?,reA..-, /vc? ? v SGafe. .Source: NC Land Quality Section Figure 18 4/?-?os Organic Debris Removal Standard Operation Procedures (SOP) Emergency Watershed Protection (EWP) Stream Repair Projects Buncombe County, North Carolina SCOPE OF WORK The work shall consist of the cleanup of designated stream areas by the removal and disposal of trees, logs, stumps, brush, tops, rubbish, and other debris deposited in the stream channel and floodplain by the storms of September 8 and 16, 2004. CLEARING AND DEBRIS REMOVAL Debris removal crews shall remove only that material which has been clearly marked by a representative of Buncombe County and/or CH2M HILL, INC (Representative) as indicated by flagging and/or orange/red spray paint. ONLY marked debris is to be removed. Representative cannot authorize additional work. Any work that will result in an increase in cost must be submitted to CH2M HILL for approval prior to starting such work. In the event that the contractor uses on-site chipping, the chipper may follow the clean-up crew along the length of the project reach. The Contractor is responsible to properly dispose of chips. Proper disposal may include spreading on site or removing off-site. On-site disposal requires written approval by the property owner. Unless specifically requested to leave the chips in a pile by a property owner the chipper shall make reasonable efforts to spread the chips as chipping progresses. Chippers and other heavy equipment will be staged and used at least 30-feet from the top of the streambank or on existing paved or graveled areas prepared in accordance with standard details described in Figure 18 (see Typical Design Drawings). Repair of any property damage resulting from debris removal is the sole responsibility of the Contractor. All debris removal shall be within the included sites as identified in this solicitation and as directed by the Representative. For bid preparation purposes, the Representative has marked and identified debris to be removed. Removed debris shall be placed only in those areas as directed by the Representative. For Bid purposes, debris staging areas are assumed to be within 300 feet of top of bank. On-site burning is not allowed. Fallen trees, limbs and dislodged brush within the cross section of the existing or original channel up to and including the debris line of the subject storm shall be removed. Any foreign (man-made) debris washed in from upstream, shall be removed. Marked trees severely undercut by stream bank erosion and trees severely leaning over the channel whose near term fall is apparent shall be removed. In general, Contractor clearing will be limited to the cutting of severely damaged trees leaning across the channel, and other trees as needed to gain access for equipment to points of channel blockage. P:\BuncombeCountyNc\328275\Permits\Newfound PCNs\Final PCNs and Attachments\Design Attachments\Buncombe Debris Removal SOP.doc Disturbance of the channel bottom and banks, and equipment access areas shall be held to the minimum necessary to allow the construction equipment to remove the debris and shall be consistent with all state and federal permits. All areas disturbed due to debris removal or equipment access shall be reshaped and reseeded in accordance with standard details described in Figures 7-18 (see Typical Design Drawings). Access to the channel will generally be perpendicular to the channel so cutting of trees is held to a minimum with precaution taken to protect mast producing and stream canopy trees. Un-marked dead trees that provide den habitat and are determined to pose no hazard to the channel shall be protected. As such, the contractor will only remove marked debris. The contractor will exercise care in the areas of existing crops to minimize damages. PROVIDED EQUIPMENT & FACILITIES The Contractor shall provide adequate sanitary facilities for equipment operators and work crews. Portable facilities shall be provided at the worksite and arrangements made for proper servicing. A portable facility will be provided within 1,000 feet of the equipment and/or work crews at all times. COMMUNICATIONS Each mechanized piece of equipment and each work crew shall be equipped with a two way, battery operated radio. Radios shall be FM, have a minimum range of 5 miles. Radios shall be maintained "on" and in the receive mode at all times while the operator is at the site. Batteries shall be recharged overnight or as needed. An extra set of fully charged batteries shall be maintained on board the equipment at all times. Radios shall be equipped with clip-on hand mikes or headsets. Radios shall be maintained in good operating condition and equipment operators shall be knowledgeable in the use and care of the radios. Each Contractor site supervisor shall also maintain a secondary communication system compatible with the Representative's system. Brush Removal Guidelines • Small diameter brush and limbs (less than four inches in diameter) that will not cause damage if remobilized by high water will be cut into short lengths (five feet long or less) and left in place. • All marked, dislodged or uprooted larger diameter brush will be removed from the channel or streambank and chipped in designated areas greater than 30-feet from the top of the bank. • Saplings and shrubs with an intact root system are not to be removed. P:\BuncombeCountyNc\328275\Permits\Newfound PCNs\Final PCNs and Attach ments\Design Attach ments\Buncombe Debris Removal SOP.doc Tree Removal Guidelines • Trees will be chipped in designated areas greater than 30-feet from the top of the streambank. Chippers and/or tub grinders may be staged on-site with written consent from the property owner or at a central location approved by the County. • Larger diameter trees may be pulled to the chipper using a mechanized winch provided the process does not create excess disturbance to the streambank. • Marked trees whose near term fall is apparent should be cut at the marked location, which will be indicated by a painted ring around the trunk at least three- feet above the ground surface. The root system shall not be removed from the streambank. • As approved by the Representative, larger diameter trees that cannot be moved using hand equipment will be cut to manageable lengths and removed. • The sale of chips or firewood is not allowed. Foreign Debris and Trash Removal Guidelines • Foreign (manmade) debris and trash will be bagged in orange trash bags where possible. • Filled trash bags will be removed from the channel and transported directly offsite by the Contractor to a local landfill. • Large debris must be loaded into a dump truck or roll-off container and transported to a local landfill for disposal. • Tipping fees for disposal shall be paid by the Contractor. Stream bed and Bank Repair Guidelines All temporary stream crossings shall be installed as described in Figures 15 -18 (see Typical Design Drawings). • All Stream embankments disturbed by Contractor activities, denuded, or left bare as a result of debris removal shall be regraded, planted, and erosion control fabric installed as described in Figures 6, 7, and 9 - 12 (see Typical Design Drawings). Temporary staging, chipping, and work access points shall be regraded and grassed using a native grass/herb mix as outlined in Figures 6, 7, and 16 - 18 (see Typical Design Drawings). P:\ Bunco mbeCountyNc\328275\Permits\Ncwfound PCNs\Final PCNs and Attach ments\Desi gn Attachments\Buncombe Debris Removal SOP.doc • Contractor shall install erosion control measures as outlined in Figures 10 -18. SUPERINTENDENCE OF EQUIPMENT AND WORK CREWS Any contractor providing three (3) or more pieces of equipment or five (5) or more work crew or equipment operators shall provide a non-working crew superintendent in addition to the required laborers and operators. The contractor shall designate in writing the names of the crew superintendent and an alternate prior to award of the contract. The crew superintendent shall provide on-site supervision of work crews and equipment operators. The crew superintendent shall be responsible for the safety of work crews and for the location and servicing of portable sanitary facilities. He/she shall be equipped with a portable communication as specified above. The crew superintendent shall communicate with the Representative to assure that work crews and equipment are performing at a satisfactory level. The crew Superintendent shall coordinate with the Representative to schedule equipment and operators for each days work and as far in advance as possible. The superintendent shall be responsible for keeping up with the daily operating times of all work crews and equipment and shall maintain a log of daily equipment and work crew operations. He/she shall coordinate daily with the Representative to concur on actual footage of streambank cleared. WORK DIRECTION Contractors and equipment operators will not perform activities requested or instructed by landowners or others at the worksite, except as confirmed by the assigned Representative. ENVIRONMENTAL CONSIDERATIONS Earth moving equipment will cross and operate in the stream flow only when necessary and only when directed to do so by the Representative. Equipment shall be maintained to prevent fuel, oil and lubricant spills in the vicinity of the stream. Refueling, repairs and lubrication will be performed at safe distances from the stream and only at locations approved by the Representative. Should fuel leaks, oil leakages or hydraulic pipe rupture occur during construction, the operators will immediately remove the equipment to a "safe" area and proceed with repairs. The Representative will direct operators to remove equipment from the stream whenever a leak is observed or suspected. P:\BuncombeCountyNc\328275\Permits\Newfound PCNs\Final PCNs and Attachments\Design Attach ments\Buncombe Debris Removal SOP.doc SAFETY Contractor shall be responsible for the safe execution of this work and conform to all applicable state and federal regulations. Additionally, at work sites, where equipment will be operating on public roads, flagmen shall be stationed to warn oncoming traffic of congestion, construction road signs shall be in place and a means of removing sediment, mud or rocks from roadways shall be established. Residue deposited on roadways may be removed by sweep machine, manual sweeping methods or pressurized water. The contractor will be responsible for the implementation of these measures. Chain saw operators will be expected to perform debris removal operations during periods of extreme weather conditions and in areas of deep and fast moving water. The contractor is responsible for providing the necessary equipment, clothing and other gear to insure that laborers can perform effectively and safely under these conditions. The Contractor shall determine if working conditions are hazardous and/or of sufficient extreme to prevent efficient and effective operation. When such conditions exist, the Contractor shall shut down work crews until conditions improve. EQUIPMENT Equipment selection to complete the work is the Contractor's responsibility. The following list of equipment has been utilized on similar debris removal projects and is provided as a courtesy to the Contractor. This is not a requirement. Item No. 1 Hydraulic Track Mounted Excavator with Experienced Operator Min. Weight 48,000 lbs Min. Reach 26 feet Min. Digging depth 22 feet Equipped with thumb Min. Bucket size 1.0 cu yds. Equipped with two-way radio Min Horse Power 140 HP Item No. 2 Skidder with Experienced Operator and Two Helpers Rubber Tired with Winch and Blade Min Horse Power 80HP Min. Winch Cable Wire Rope -150 ft and 5/8 inch diameter Min Chokers: 4 with 2 Chain saws Min. 20-inch bars with daily supply of sharpened chains (min. 3 chains) Equipped with two-way radio Item No. 3 Dump Truck with Experienced Driver Rear dump haul truck tandem axle min. Capacity -15 tons equipped with two-way radio P:\BuncombeCountyNc\328275\Permits\Newfound PCNs\Final PCNs and Attachments\Design Attach ments\Buncombe Debris Removal SOP.doc Item No. 4 Chipper 14-inch capacity Tub Grinder 8-foot interior tub diameter P:\BuncombeCountyNc\328275\Pcrmits\Newfound PCNs\Final PCNs and Attach ments\Dcsign Attachments\Buncombe Debris Removal SOP.doc 6 aq@9UV91 MAY 2 7 2005 Office Use Only: DE " ' ' 1?rt1LANDSAI?DS70Rl.TNA7ERBi},lyf'ni Version May 2002 USACE Action ID No. DWQ No. (If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".) 1. Processing 1. Check all of the approval(s) requested for this project: ® Section 404 Permit ? Riparian or Watershed Buffer Rules ? Section 10 Permit ? Isolated Wetland Permit from DWQ ® 401 Water Quality Certification 2. Nationwide, Regional or General Permit Number(s) Requested: Nationwide 37 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 Wetlands Restoration Program (NCWRP) is proposed for mitigation of impacts (verify availability with NCWRP prior to submittal of PCN), complete section VIII and check here: ? 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 Concern (see the top of page 2 for further details), check here: ? II. Applicant Information 1. Owner/Applicant Information Name: John Creighton /Assistant County Manager/Planning Director Mailing Address: 46 Valley Street - Asheville. NC 28801 Telephone Number: 828-250-4835 Fax Number: 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: Mike Osborne Company Affiliation: CH2M HILL Mailing Address: 4824 Parkway Plaza Blvd. Suite 200 Charlotte. NC 28217 Telephone Number: 704-329-0073 ext 252 Fax Number: 704-329-0141 E-mail Address: mike.osbome@ch2m.com Page 1 of 10 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: Dix Creek EWP 2005-123 2. T.I.P. Project Number or State Project Number (NCDOT Only): NA 3. Property Identification Number (Tax PIN): 9619.01-17-4796.000 4. Location County: Buncombe Nearest Town: Asheville Subdivision name (include phase/lot number): NA Directions to site (include road numbers, landmarks, etc.): From I-240, Exit 3 onto US-74 ALT West/US-19 South/US-23 South for approximately 1.5 miles. Turn Right on North Carolina Highway 63 - New Leicester Highway. Stay on New Leicester Highway for approximately 4.4 miles. Turn left onto Newfound Road. Turn left onto Dix Creek No. 1 Road. The site EWP 2005-123 is located near the intersection of Solomon Road and Dix Creek No. 1 Road. The address of the site is 297 Dix Creek One Road, Leicester, NC 28748. The site is owned by Charles Lloyd Webb. See Attachment 1 for site vicinity and parcel locations. 5. Site coordinates, if available (UTM or Lat/Long): 35°3643.4"N 82°39'45.4"W (Note - If project is linear, such as a road or utility line, attach a sheet that separately lists the coordinates for each crossing of a distinct waterbody.) 6. Property size (acres): 4.16 7. Nearest body of water (stream/river/sound/ocean/lake): Dix Creek 8. River Basin: French Broad Page 2 of 10 (Note - this must be one of North Carolina's seventeen designated major river basins. The River Basin map is available at http://h2o.enr.state.nc.us/admin/maps/.) Describe the existing conditions on the site and general land use in the vicinity of the project at the time of this application: The proposed site consists of light residential uses. The stream and stream banks were heavily impacted during Tropical Storms Frances and Ivan. Extensive stream bank erosion threatens the stability of existing structures. 9. Describe the overall project in detail, including the type of equipment to be used: EWP 2005-123 This project area includes approximately 200 linear feet of an unnamed tributary to Dix Creek adjacent to Dix Creek No. 1 Road. The project area is located at 35°3643.4"N 82°39'45.4"W. Highwater flows have severely eroded the banks. In this section of creek two property access roads are threatened by these conditions. Attachment 1 contains representative photos of the project area. Repairs in this reach of stream will involve the following: - Stabilize the channel in its pre-flood configuration using organic and rock structures - Reseed and plant woody vegetation The techniques that will be utilized for the proposed repairs at the EWP site listed above are described below. Streambank Repair When possible, excavation equipment will access streambank repair areas from the dry and will not track into the stream channel. Most of the steep eroded streambanks are opposite or adjacent to the debris removal areas. At these areas, the rocky material removed from the floodplain will be used to stabilize the stream bank, with the addition of large boulders along the toe of the slope as necessary to stabilize and protect the toe. Where suitable material is available, rock vane and root wads will be installed in the restored bank section to reduce bank stress and provide stability to the unconsolidated fill. An existing cross section and site specific design components are included in Attachment 1 for each of the impacted channel sections requiring stabilization. Drainage areas of project areas are also included in those attachments. The drainage area is used to determine the design storm peak flow using USGS Rural Regression equations for the Blue Ridge- Piedmont. Design storm velocity and shear stress values were also calculated. This information, in conjunction with the field investigation analysis, DSR notations, and agency guidance and regulations, are used to develop an appropriate streambank stabilization design. Additional information on general design features, erosion control practices and debris removal practices is included in Attachment 2. Equipment that may be used to accomplish the above listed tasks includes; rubber tired skidders, 15 ton dump truck, hydraulic track mounted excavator with thumb, and chainsaws. Page 3 of 10 10. Explain the purpose of the proposed work: The work addressed in this application is intended to improve post flood hydraulic capacity of the stream reaches discussed and stabilize severely eroded streambanks that are threatening structures or other property. The proposed actions are not intended to enhance existing conditions or restore stream reaches using natural channel design techniques. Such activities would require detailed engineering evaluation and design, which are beyond the intent of the EWP program. 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. NO VI. 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. The applicant must also provide justification for these impacts in Section VII below. All proposed impacts, permanent and temporary, must be listed herein, and must be clearly identifiable on an accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial) must 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 Page 4 of 10 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: Proposed impacts include limited streambed disturbances, debris removal, and streambank stabilization. 2. Individually list wetland impacts below: Wetland Impact Site Number (indicate on ma) Type of Impact* Area of Impact (acres) Located within 100-year Floodplain** (es/no) Distance to Nearest Stream (linear feet) Type of Wetland*** * List each impact separately and identify temporary impacts. 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 flooding. ** 100-Year floodplains are identified through the Federal Emergency Management Agency's (FEMA) Flood Insurance Rate Maps (FIRM), or FEMA-approved local floodplain maps. Maps are available through the FEMA Map Service Center at 1-800-358-9616, or online at http://www.fema.kov. *** List a wetland type that best describes wetland to be impacted (e.g., freshwater/saltwater marsh, forested wetland, beaver pond, Carolina Bay, bog, etc.) Indicate if wetland is isolated (determination of isolation to be made by USACE only). List the total acreage (estimated) of all existing wetlands on the property: None Total area of wetland impact proposed: NA 3. Individually list all intermittent and perennial stream impacts below: Stream Impact Length of Average Width Perennial or Site Number Type of Impact* Impact Stream Name** of Stream Before Intermittent? (indicate on ma) (linear feet) Im act (please secif ) EWP 2005-123 Streambank 200 UT to Dix Creek 15ft Perennial stabilization * List each impact separately and identify temporary impacts. Impacts include, but are not limited to: culverts and associated rip-rap, dams (separately list impacts due to both structure and flooding), relocation (include linear feet before and after, and net loss/gain), stabilization activities (cement wall, rip-rap, crib wall, gabions, etc.), excavation, ditching/straightcning, etc. If stream relocation is proposed, plans and profiles showing the linear footprint for both the original and relocated streams must be included. ** Stream names can be found on USGS topographic maps. If a stream has no name, list as UT (unnamed tributary) to the nearest downstream named stream into which it flows. USGS maps are available through the USGS at 1-800-358-9616, or online at www.uses.eov. Several internet sites also allow direct download and printing of USGS maps (e.g., www.topozone.c2 n, www.mapquest.com, etc.). Cumulative impacts (linear distance in feet) to all streams on site: 200 4. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic Ocean and any other water of the U.S.) below: Open Water Impact Area of Name of Waterbod y Type of Waterbody Site Number Type of Impact* Impact (if applicable) (lake, pond, estuary, sound, (indicate on ma) (acres) bay, ocean, etc.) Pave 5 of 10 * List each impact separately and identify temporary impacts. Impacts include, but are not limited to: fill, excavation, dredging, flooding, drainage, bulkheads, etc. 5. 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.): NA Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond, local stormwater requirement, etc.): NA Size of watershed draining to pond: NA Expected pond surface area: NA 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. When at all possible equipment will be kept out of the stream channel, stream crossings will be minimized, and no excavation will be below the existing channel bed. When at all possible stream material will be moved from dry areas to banks, minimizing the movement of wet (or below water line) stream material. Creating wide, shallow channels will be avoided. Temporary and/or permanent herbaceous vegetation shall be planted on all bare soil within 15 days of ground disturbing activities. Rocky material shall not be used for bank stabilization above the normal high water mark. Large rocky material will be brought in to stabilize the toe of impacted streambanks where necessary. 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. Page 6 of 10 USACE - In accordance with the Final Notice of Issuance and Modification of Nationwide Permits, published in the Federal Register on March 9, 2000, 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 NCWRP 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.us/ncwetiands/strmgide.htmi. 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 Wetlands Restoration Program (NCWRP). Please note it is the applicant's responsibility to contact the NCWRP at (919) 733-5208 to determine availability and to request written approval of mitigation prior to submittal of a PCN. For additional information regarding the application process for the NCWRP, check the NCWRP website at http://h2o.enr.state.nc.us/wM/index.htm. If use of the NCWRP is proposed, please check the appropriate box on page three and provide the following information: 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 Page 7 of 10 IX. Environmental Documentation (required by DWQ) Does the project involve an expenditure of public (federal/state) funds or the use of public (federal/state) land? Yes ® No ? 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 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 (Neuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please identify )? Yes ? No ® If you answered "yes", provide the following information: 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 multipliers. Zone* Impact Multiplier Required (square feet) Mitigation Page 8 of 10 1 3 2 1.5 Total * Zone 1 extends out 30 feet perpendicular from near bank of channel; Zone 2 extends an additional 20 feet from the edge of Zone 1. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e., Donation of Property, Conservation Easement, Riparian Buffer Restoration / Enhancement, Preservation or Payment into the Riparian Buffer Restoration Fund). Please attach all appropriate information as identified within 15A NCAC 2B .0242 or.0260. XI. Stormwater (required by DWQ) Describe impervious acreage (both 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. Imperviousness will not change. Erosion and sedimentation prevention and control will be maintained throughout this project primarily through: proper water management, construction sequencing, proper staging and stockpiling of materials, and the maintenance, at all times, of suitable channel capacity for expected flow events. Equipment, fuels, lubricants, or other potential sources of water pollution will not be stored in areas that could be flooded during this project. 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. Portable facilities shall be provided at the work site. XIII. Violations (required by DWQ) Is this site in violation of DWQ Wetland Rules (15A NCAC 2H.0500) or any Buffer Rules? Yes ? No Is this an after-the-fact permit application? Yes ? No XIV. 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 Page 9 of 10 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). ??? ;F1 Applicant (Agent's signature is A-;ature Da(e only if an authorization letter from the applicant is provided) Page 10 of 10 Attachment 1- DSR 123 Ia. Vicinity Map lb. Site Map lc. Site Photos Id. Cross Section and Site Specific Design Page le. Drainage Areas Access Agreements f -N: C Dix Cre k Ch1 I ? t \\ r ?? amt. ?•?tH`.O,??i ?} \ P. i? , J if ,?\: i /' 1 ) ` n,:l ENO n \\''' ±s C?-orgetoWn - ? •p? ? ? :i % `??i?;?) ?'4 Tel •'s ? - Site 123 4 •`?•? (:: 6M V.1Y6r.. InOHdIrnore7 Corinlte,Ch CR€EK• OfS7Ep. W .a N /a M = e > 637 , ? {e \ Spivey;Ivitn,°` l° vf? 11/6 4 ro C 1 ` ? ; 0 1 \ Radio t¢r n' SpiveyGap1r Lotowcra?/7 ffffff ` R?Ai n J (D r ti JrJ6? r'' j „ 1) i 1 W r \ ??k - l (D MS 63 `Miller Mountain \/,t, t r- ?26f3 ?'?a RuinS ^? i ( ?? ? co Starnes cow. Luther Gap Knob. High Tpp 6 MS 636 3528 (/,. ?/ 7 ?1 • M High f, ? i'-? ?`-`? Fem. ??• \? ? _/ ? ? ?` IzssJ .\ ?? ? Point' Uir - Traduv'' •II\ 1 Trailof n ew / i '1 n Pars '? It 0, r Park _y-Ced r _ \ cr ii? N J ?i( M Ch j if" •" ^ r r _ \ -.J`• .?, .o - I •n • n y t ; Pisgah View a Ch. of 7 ;? RAF • o°? SHE E 10. pry II Mount -t i rr =_: ?? a, I ••i.a?°? it ••?; , \ ' __- I taeah -?iCanie S?arne3 Cove Ch S .a I. Academy 0 1,250 2,500 5,000 Feet ?,;, , ? I I I I I I I I I I I Attachment 1a -.? DSR 123 - Newfound Creek Watershed Buncombe County, NC Charles Webb - Vicinity Map ® CH2MHILL qq` Attachment 1 b DSR 123 - Newfound Creek Watershed Buncombe County, NC Charles Webb Parcel 4796 Attachment 1c DSR 123 - Newfound Creek Watershed Buncombe County, NC Charles Webb - Photo Log SJ .„iT '?T ;?1?i S '.Jf ]I t'• sa. x. • J Attachment 1 d DSR 123 - Newfound Creek Watershed Buncombe County, NC Charles Webb existing cross section 7 Right Top of Bank Left Top of Bank 5 4 a? m 3 -Water Surface 2 = - 1 'qr 71 1 11 0 4 35 30 1 1P 0 5 -1 Width (feet) Buncombe Co., Newfound Watershed - Dix Creek, DSR 123 Design Parameters Apply to Site X X X X X X X X X X X X X Figure Title 1 BANK STABILIZATION TYPICAL SECTION 2 BANK STABILIZATION WITH ROCK TOE TYPICAL SECTION 3 STREAM CHANNEL BENCH TYPICAL SECTION 4 TYPICAL J HOOK DETAIL 5 TYPICAL CROSS VANE DETAIL 6 SUGGESTED VEGETATION LIST 7 STABILIZATION PLANTING PLAN 8 BENCH PLANTING PLAN 9 LIVE STAKE DETAIL 10 DEAD STOUT STAKE DETAIL 11 EC FABRIC INSTALLATION DETAIL 12 EC FABRIC ANCHOR DETAIL 13 STABILIZATION CONSTRUCTION ENTRANCE DETAIL 14 TEMPORARY SILT FENCE DETAIL 15 TEMPORARY STREAM CROSSING DETAIL 16 LAND QUALITY STOCK PILE LAYOUT 17 LAND QUALITY STREAM CROSSING LAYOUT 18 LAND QUALITY DEBRIS REMOVAL LAYOUT NOTE 1: Provide headwall and Wngwall protection at 2 driveway culverts with rock NOTE 2: Remove sediment from exisitng culverts. Nctcs and/or Measurements A= 1.2 FT. 140 LF of left bank and 60 LF of right bank NOTE 1 & 2 EC fabric = 4.5 Ib/f12 ?aict+`un?wy? CA i 2M w EL Initials KSB Date 5/9/2005 der Bra ch Legend A DSR Project Site Interstate Highway Major Road 0 Major Hydrography Subwatershed r Municipality CO ti County Boundary 0 DSR123 DSR123 k Drainage Area 0.44 sq. miles s U x ?'c?n?sh 9r a??h smith peek 0 0.25 0.5 1 Miles Attachment le DSR 123 - Newfound Creek Watershed ILL Buncombe County, NC Charles Webb - Drainage Area Map - C.ha,rl-cs W e,6b -N, I PERMIT FOR EMERGENCY WATERSHED PROTECTION (EWP) The undersigned landowners hereby grant permission to Buncombe County and the Buncombe County Soil and Water Conservation District and/or their agents to enter upon our land for the purpose of repairing the flood damage of stream channels and stream banks in the IV 01 t^m G U' GC.k watershed. This permit includes the right to spread soil, remove and dispose of debris, install needed measures, seed and mulch, and perform similar emergency watershed protection work necessitated by the floods of September, 2004. This permit also includes the right of ingress and egress on the land for the purpose of maintaining or inspecting maintenance of the emergency works for the period of 1 year from the date of completion. Work areas covered by this permit are sketched on the reverse of this form or on an attached sheet. Signed Date 5 igned Date Attachment 2 General Design Notes Typical Design Drawings Debris Removal SOP General Notes The Contractor shall make his own determination of the existing subsurface conditions. In areas where proposed construction may conflict with existing utilities, the Contractor shall take all necessary precautions to avoid damage to the utilities. Notify and locate all impacted utilities at least 48 hours prior to excavation. Any damage sustained to utilities shall be repaired by or under the direction of the utility owner at the Contractor's expense. All existing facilities, including but not limited to sidewalks, roads, lawns, landscape vegetation, etc., inside and outside of construction limits that are disturbed under this contract shall be reestablished and/or reconstructed to the original condition at the Contractor's expense. Construction Sequence 1. Begin work at the upstream end of the project reach. 2. Construct proposed structures according to the plans and specifications. 3. Grade stream banks to proposed grade, and tie into existing banks upstream and downstream. 4. Overbank areas (beyond top of bank) adjacent to the project reach shall be graded for positive drainage toward the stream. 5. Apply temporary stabilization to the disturbed areas at the end of each work day. 6. Repeat steps 1 through 5 for each segment of the project reach, working downstream. Site Stabilization 1. Conduct soil test to confirm necessary lime and fertilizer amendments. Appropriate lime and fertilizer shall be applied prior to seeding and incorporated to a depth 3 to 5 inches below the surface. 2. Temporary stabilization will be applied to all disturbed areas on a daily basis. Areas shall be seeded with rye grass at a rate of 15 lbs./ac. and long straw or hay mulched. Straw shall consist of thoroughly threshed wheat, rye or oat straw, reasonably bright in color, and shall not be musty, moldy, caked, decayed, or excessively dusty and shall be free of noxious weed seeds. 3. Permanent soil stabilization shall be completed within 7 calendar days of initial soil disturbance or re-disturbance. Planting and seeding shall be incorporated into the subsoil at the rates prescribed on Figures 6, 7, and 8. Contractor shall follow NCDWQ Guidelines for Riparian Restoration, http://h2o.enr.state.nc.us/wrp/pdf/buffers.pdf 4. All earth fill in excess of 1 ft depth should be installed in lifts of maximum 6-inches and mechanically compacted. 5. All rock used for bank stabilization and in-stream structures shall be 3 ft to 4 ft angular rock. 6. Erosion Control (EC) Fabric shall be woven coir mat, secured with dead stout stakes, and shall meet the following standards: 50% open area (maximum) 0.5 inch maximum opening size 4.5 lbs. per sq. foot maximum sheer stress 10 fps minimum velocity CLT/GENERAL NOTES_NF.DOC USE OR DISCLOSURE OF DATA CONTAINED ON THIS SHEET IS SUBJECT TO THE RESTRICTION ON THE TITLE PAGE OF THIS PROPOSAL 7. Filter fabric shall be Amoco Propex 2002 woven geotextile or equivalent. Cut excess filter fabric so no fabric is visible after installation. 8. Seeded areas not specified for coir fabric, shall be mulched with long straw or hay mulch immediately after seeding areas at a rate of 2 tons/acre (uniform loose depth of 1" to 2"). Straw shall consist of thoroughly threshed wheat, rye or oat straw, reasonably bright in color, and shall not be musty, moldy, caked, decayed, or excessively dusty and shall be free of noxious weed seeds. Mulch shall be secured with biodegradable netting (Robex Super Flow or Equal). 9. The Contractor shall be responsible for maintaining seeded areas until 95% vegetative cover is established. Should any seeded area fail to germinate, or washing of any areas occur requiring re-establishment of seeding, the Contractor shall replace any lost soil material and re-seed and re-mulch such areas at Contractor's expense. Standard Erosion and Sediment Control Notes 1. The Contractor shall protect all points of construction ingress and egress by installing a temporary construction entrance as shown in details to prevent the deposition of materials onto public roads. All materials deposited onto public roads shall be removed immediately. 2. The Contractor shall re-vegetate or restore access roads (including construction entrance) to match pre-construction conditions. 3. The Contractor shall inspect daily and maintain continuously in an effective operating condition all erosion and sediment control measures until such times as they are removed with prior permission from Engineer or agency inspector. 4. The Contractor shall protect trees and landscaping not marked for disposal from damage. Any damage that occurs shall be repaired at the Contractor's expense. 5. Fencing shall be maintained for animal containment. The Contractor shall provide temporary fencing to allow for execution of the work. The Contractor shall keep construction equipment away from livestock and take all precautions to prevent injury to animals. CLT/GENERAL NOTES_NF.DOC USE OR DISCLOSURE OF DATA CONTAINED ON THIS SHEET IS SUBJECT TO THE RESTRICTION ON THE TITLE PAGE OF THIS PROPOSAL. EXISTING TOP OF BANK PROPOSED GRADE i`ii`, CUT 1 `? i\ 3 MIN. (NOT STEEPER) EC FABRIC SEE FIGURE 7 EXISTING GRADE BASE FLOW 1 DRAWN: PROJ. MANAGER: DATE: NOTE: HEIGHT "A" IS MEASURED FROM DEEPEST POINT IN CHANNEL CROSS-SECTION GMH JMO 5/2005 CH2MHILL 4824 PARKWAY PLAZA BOULEVARD SUITE 200 CHARLOTTE, INC 28217 TITLE BANK STABILIZATION TYPICAL SECTION NTS FIGURE 1 EXISTING STREAMBED EXISTING TOP OF BANK /??"\i?/,.i MIN. OF Ile %` EXPOSED PROPOSED GRADE 1 ???f i? ice, ROCK 3 MIN. ROCK TOE (NOT STEEPER) i 2' MIN. OF ROCK EMBEDDED IN BANK EC FABRIC SEE FIGURE 7 B ASE FLOW A 1 NOTES: 1. HEIGHT "A" IS MEASURED FROM 2 DEEPEST POINT IN CHANNEL CROSS-SECTION. FILTER FABRIC 2. FILTER FABRIC SHALL BE AMOCO PROPEX 2002 WOVEN GEOTEXTILE OR EQUIVALENT. LAY FILTER FABRIC UNDER TRENCH ROCK AND UP BEHIND ROCKS. CUT EXCESS FILTER FABRIC SO NO FABRIC IS VISIBLE AFTER INSTALLATION. BACKFILL WITH WELL-DRAINING SOIL (USE NATIVE MATERIAL WHENEVER POSSIBLE). MIN. OVERLAP OF COIR OVER FILTER FABRIC OF 12". DRAWN: GMH PROJ. MANAGER: JMO DATE: 5/2005 CH2MHILL 4824 PARKWAY PLAZA BOULEVARD SUITE 200 CHARLOTTE, INC 28217 KEY IN ROCK TOE ONE ROCK DIAMETER 4' MIN. EXISTING STREAMBED TITLE I FIGURE BANK STABILIZATION WITH ROCK TOE TYPICAL SECTION Z NTS EXISTING TOP OF BANK EXISTING GRADE CUT\? \ PROPOSED GRADE 1%?>?`??•?'?/! 3 MIN. (NOT STEEPER) EC FABRIC SEE FIGURE 7 GRADE TO DRAIN (1% MAX.) I FILL STREAM CHANNEL BENCH NOTES: 1. HEIGHT "A" IS MEASURED FROM DEEPEST POINT IN CHANNEL CROSS-SECTION. 2. FILTER FABRIC SHALL BE AMOCO PROPEX 2002 WOVEN GEOTEXTILE OR EQUIVALENT. LAY FILTER FABRIC UNDER TRENCH ROCK AND UP BEHIND ROCKS. CUT EXCESS FILTER FABRIC SO NO FABRIC IS VISIBLE AFTER INSTALLATION. BACKFILL WITH WELL-DRAINING SOIL (USE NATIVE MATERIAL WHENEVER POSSIBLE). MIN. OVERLAP OF COIR OVER FILTER FABRIC OF 12". DRAWN: GMH PROJ. MANAGER: JMO DATE: 512005 CH2MHILL 4824 PARKWAY PLAZA BOULEVARD SUITE 200 CHARLOTTE, INC 28217 EXISTING STREAMBED ` FILTER FABRIC KEY IN ROCK TOE ONE ROCK DIAMETER 4' MIN. 2 l I1 TITLE STREAM CHANNEL BENCH TYPICAL SECTION NTS T BASE FLOW A yx _x FIGURE 3 BANKFULL ELEVATION FLOW G DIRECTION (\ CROSS SECTION VIEW BOULDER BANKFULL ELEVATION FLOW DIRECTION ? 11 _._._. _.4 _ ._._._._ :?-2-7% t z FOOTER -? NOTES: PROFILE VIEW 1. BOULDER SIZE IS 4' MINIMUM OR AS SPECIFIED ON PLANS. CHANNEL BED ll? ' All, GAPS (1/4-1/3 ROCK DIA.) OV O 2 M. t SCOUR POOL I PLAN VIEW 2. WRAP FILTER FABRIC AROUND FOOTER STONES AND BACKFILL WITH TYPE 3 RIPRAP OR EQUIVALENT (ON SITE COBBLE WHEN AVAILABLE). SOURCE: APPLIED ECOLOGICAL SERVICES, INC DRAWN: GMH PROJ. MANAGER: JMO DATE: 512005 CH2MHILL 4824 PARKWAY PLAZA BOULEVARD SUITE 200 CHARLOTTE, NC 28217 TITLE TYPICAL J HOOK DETAIL BOULDERS W FIGURE 4 NOT TO SCALE FOOTER 5-MIN. -?? 5'MIN. BANKFULL WIDTH I I SILL t - - - -.-.-.-. Q .-.-.-.-.-.-.- ti s BOULDERS 1 BANKFULL ELEVATION * e FLOW ti J DIRECTION j 1 ?T a~ - Z Z ..1. =•f . lt. :•.? Q Q 03 5'MIN. FOOTER /3W-?/3W?t/3 CROSS SECTION VIEW II 2D* z BOULDERS BANKFULL ELEVATION 213 W TRENCHED IN 3' MIN. AND COVERED rl DIRECTION oc-w BOULDERS CHANNEL BED FLOW L nnol SILL MUST BE TIED IN TO BANKFULL ELEVATION SCOUR POOL PLAN VIEW NOTES: 1. BOULDER SIZE IS 4' MINIMUM OR AS SPECIFIED ON PLANS. 2. WRAP FILTER FABRIC AROUND FOOTER STONES AND BACKFILL WITH TYPE 3 RIPRAP OR EQUIVALENT (ON SITE COBBLE WHEN AVAILABLE} DRAWN: GMH PROJ. MANAGER: JMO DATE: 5/2005 CH2MHILL 4824 PARKWAY PLAZA BOULEVARD SUITE 200 CHARLOTTE, NC 28217 SOURCE: APPLIED ECOLOGICAL SERVICES, INC TITLE FIGURE TYPICAL CROSS VANE DETAIL 5 NOT TO SCALE FOOTER-/ PROFILE VIEW Mountaln Region Suggested Vegetation List TREES S P F SMALL TREES/SHRUBS S P F HERBACEOUS VEGETATION FOR SEED MIX Betula lenta Alnus serrulata Arisaema triphyllum Scirpus validus cherry birch x x tag alder x x x jack-in-the-pulpit soft stem bulrush Betula nigra Amelanchierarborea Asclepias incarnata Sparganium americanum river birch x x serviceberry x x swamp milkweed bur-reed Carya cordilormis Aronia arbutitolia Carex crinata Thelypteris palustris bitternut hickory x x x red chokeberry x x fringed sedge marsh fern Carya ovata Asimina triloba Carex intumescens Uniola latilolia shagbark hickory x x x common pawpaw x x bladder sedge river oats Diospyros virginiana Calycanthus lloridus Carex lupulina Vernonia noveboracensh persimmon x x x sweet-shrub x x hop sedge ironweed Fraxinus pennsylvanica Carpinus caroliniana Carex lurida Leersia oryzoides green ash x x ironwood x x lurid sedge rice cutgrass Halesia caroliniana Cornus alternitolia Carex scoparia Lobelia cardinalis silverbell x x alternate leaf dogwood x x broom sedge cardinal flower Nyssa sylvatica Cornus amomum Carex stricta Lobelia siphilitica blackgum x x x silky dogwood x x tussock sedge great blue lobelia Platanus occidentalis Corylus americana hazel- Carex vulpinoidea Ludwigia alternitolia sycamore x x nut x x fox sedge bushy seedbox Prunus serotina Hamamelis virginiana Chelone glabra Panicum virgatum black cherry x x x witch-hazel x x turtlehead switchgrass Salix nigra Ilex verticillata Cyperus strigosus Polygonum sagittatum black willow x x winter berry x x x umbrella sedge tearthumb Tilia heterophylla Leucothoe axillaris Elymus hystrix Scirpus atrovirens white basswood x x doghobble x bottlebrush grass green bulrush I j I Lindera benzoin Eupatorium listulosum Scirpus cyperinus S = Shade j spicebush x Joe-pye-weed woolgrass P = Partial Sun Lyonia ligustrina x Eupatorium perloliatum Juncus ellusus F FuII Sun Lyonia ligustrina boneset soft rush I Magnolia tripetala x Impatiens capensis umbrella tree jewel-weed _ ----- - I I --- - - 1 _ Physocarpus opulilolius ninebark x j Rhododendron I periclymenoides wild azalea x x j I Rhododendron viscosum I swamp azalea x x _ -- - - - I j Rosa palustris I ! swamp rose x x Salix sericea j silky willow x x -- - - ---- - I Spirea latilolia - j i m eadowsweet x Symplocos tinctoria i sweet leaf x x I i Viburnum cassinoides W ithe-rod x x x Xanthorhiza simplicissima j yellow-root x ' t I ? { I I I t I I i j - r , j I j I - ---- ------ TITLE DRAWN: GMH SUGGESTED VEGETATION LIST MANAGER: JMO PROJ. D ATE: DATE: 5/2005 CH2MHILL FIGURE 4824 PARKWAY PLAZA BOULEVARD SUITE 200 CHARLOTTE, NC 28217 APPROx. WIDTH Of CHANNEL ' _F3 -14 J_ LIVE STAKE ZONE TO EDGE OF WATER PLANTING WIDTH WILL VARY TO LANDOWNER COMPLIANCE AND PROJECT SPECIFICATIONS. EXISTING SURFACE ELEVATION ZONE I ZONE 2 SYMBOL HERBACEOUS SEEDING DESCRIPTION SYMBOL WOODY VEGETATION DESCRIPTION NATIVE TREE AND SHRUB SPECIES TO BE PLANTED AT -TD BE SEEDED IMMEDIATELY WITH TEMPORARY RYE GRASS A DENSITY OF 436 TREES/ACRE, WHICH IS AT 15 LBS/ACRE SEEDING RATE. SUFFICIENT TO PROVIDE 320 TREES/ACRE -FOLLOWING CONSTRUCTION, AREA TO BE SEEDED WITH A NATIVE PERMANENT GRASS/HERB MIXTUR AT AT MATURITY. FOLLOW NCDWO GUIDELINES FOR RIPARIAN BUFFER RESTORATION. , E 15-20 LBS/ACRE SEEDING RATE ® -SHRUB SPECIES INCLUDE BUT ARE NOT LIMITED TO: . -HERB/GRASS SPECIES INCLUDE BUT ARE NOT LIMITED TO Alnus serratula, Cephalanthus occidentalis, : Agrostis alba Carex spA DacWis glomerate Cornus stricta, Rhododendron maximum, salix , , , serecla, Sambucus canadensis, etc. Panicum spp., Pennisetum glaucum, Secale cereals, -TREE SPECIES INCLUDE BUT ARE NOT LIMITED TO: ETC. LIVE STAKES TO INCLUDE Cornus spp. and Acerspp., Botula spp., Fraxinus app., Juglands Salix serica Nigra, Lirlodendron Tulipltera., Pinus strobus., LIVE STAKES SPACED ON 2' CENTERS Platanus occldentalis., Robinla Pseudoacacia., etc. -TD BE SEEDED IMMEDIATELY WITH TEMPORARY RYE GRASS. -FOLLOWING CONSTRUCTION, AREA TO BE SEEDED WITH A NATIVE, PERMANENT GRASS/HERB MIXTURE AT 15-20 LBS/ACRE SEEDING RATE. AT LEAST 3 SPECIES OF TREES AND 5 SPECIES OF SHRUBS SHOULD BE USED. ?A1l1TFC -TREE/SHRUB/GRASS SPECIES LISTED ARE SUBJECT TO CHANGE DUE TO AVAILABILITY FROM LOCAL NURSERIES AND FORESTRY SUPPLY STATIONS. SUBSTITUTION MUST BE APPROVED BY ENGINEER. SOURCE: ALTAMONT ENVIRONMENTAL, INC. DRAWN: GMH PROJ. MANAGER: JMO DATE: 5/2005 CH2MHILL 4824 PARKWAY PLAZA BOULEVARD SUITE 200 CHARLOTTE, NC 28217 TITLE ZONE2 I ZONE1 10. VARIES - I 3' EXISTING STREAMBED STABILIZATION PLANTING PLAN FIGURE 7 IV, APPRox. WIDTH OF CHANNEL LIVE STARE ZONE TO EDGE OF WATER PLANTING WIDTH WILL VARY TO LANDOWNER COMPLIANCE AND PROJECT SPECIFICATIONS. ZONE I ZONE 2 SYMBOL HERBACEOUS SEEDING DESCRIPTION SYMBOL WOODY VEGETATION DESCRIPTION NATIVE TREE AND SHRUB SPECIES TO BE PLANTED AT -TO BE SEEDED IMMEDIATELY WITH TEMPORARY RYE GRASS A DENSITY OF 436 TREES/ACRE, WHICH AT 15 LBS/ACRE SEEDING RATE. SUFFICIENT TO PROVIDE 320 TREES/ACRE -FOLLOWING CONSTRUCTION, AREA TO BE SEEDED WITH A NATIVE, PERMANENT GRASS/HERB MIXTURE AT 15-20 LBS/ACRE SEEDING RATE. ® AT MATURITY. FOLLOW NCDWO GUIDELINES FOR RIPARIAN BUFFER RESTORATION. -SHRUB SPECIES INCLUDE BUT ARE NOT LIMITED TO: -HERB/GRASS SPECIES INCLUDE BUT ARE NOT LIMITED TO: A/nus serratula, Cepha/anthus occldentalls, Carex spp. Agrostts alba Dactylis glomerata Cornus stricta, Rhododendron maximum, salix , , , serecia, Sambucus canadensis, etc. Panicum sop., Pennlsetum glaucum, Seca/e cereale, ETC. -TREE SPECIES INCLUDE BUT ARE NOT LIMITED TO: LIVE STAKES TO INCLUDE Cornus spp. and Acer app., Betu/a spp., Frax/nus spp., Juglands Salix serica Nigra, Llriodendron Tulipitera., Pinus strobus., LIVE STAKES SPACED ON 2' CENTERS Platanus occidentalis., Robin/a Pseudoacacla., etc. -TO BE SEEDED IMMEDIATELY WITH TEMPORARY RYE GRASS. -FOLLOWING CONSTRUCTION, AREA TO BE SEEDED WITH A NATIVE, PERMANENT GRASS/HERB MIXTURE AT 15-20 LBS/ACRE SEEDING RATE. AT LEAST 3 SPECIES OF TREES AND 5 SPECIES OF SHRUBS SHOULD BE USED. 'NOTES: -TREE/SHRUB/GRASS SPECIES LISTED ARE SUBJECT TO CHANGE DUE TO AVAILABILITY FROM LOCAL NURSERIES AND FORESTRY SUPPLY STATIONS. - PLANT ZONE I TO EDGE OF WATER - SUDTITUTION MUST BE APPROVED BY ENGINEER SOURCE: ALTAMONT ENVIRONMENTAL, INC. DRAWN: GMH PROJ.MANAGER: JMO DATE: 5/2005 CH2MHILL 4824 PARKWAY PLAZA BOULEVARD SUITE 200 CHARLOTTE, INC 28217 TITLE BENCH PLANTING PLAN EXISTING STREAMBED J FIGURE 8 EC FABRIC 2' MAX SPACING 30" LIVE CUTTING (DORMANT) - TYP DEAD STOUT STAKE TYP, SEE FIGURE 10 NOTE: INSTALL LIVE STAKE SO z/3 LENGTH IS (MIN. 20") BELOW GROUND DRAWN: GMH PROJ. MANAGER: JMO DATE: 5/2005 CH2MHILL 4824 PARKWAY PLAZA BOULEVARD SUITE 200 CHARLOTTE, NC 28217 k NTS ESTABLISHED PLANT SHOWN FOR INFORMATION ONLY TITLE LIVE STAKE DETAIL FIGURE 9 NOTES: 1 B" STANDARD (30" IF USED AT TOE OF SLOPE) 1. DEAD STOUT STAKES SHALL BE FASHIONED FROM UNTREATED 2" BY 4" (NOMINAL) BOARDS. 2. DEAD STOUT STAKES TO BE USED IN LIEU OF METAL OR OTHER STAPLES OR FASTENERS FOR SECURING EC FABRIC IN PLACE. 3. THE CONTRACTOR MAY USE'ECOSTAKE" 12" LENGTH OR APPROVED EQUAL IN LIEU OF DEAD STOUT STAKES FOR INSTALLATION IN THE CENTER OF THE EC FABRIC 'FIELD". 4. INSTALL EC FABRIC PER MANUFACTURER'S INSTRUCTIONS. DRAWN: GMH PROJ.MANAGER: JMO DATE: 5/2005 TITLE FIGURE CH2MHILL 4824 PARKWAY PLAZA BOULEVARD SUITE 200 CHARLOTTE, NC 28217 DEAD STOUT STAKE DETAIL NTS 10 SOIL SIOENGINEERING E DEAD STOU TIE TO TYPICAL SECTION NOTES: 1. INSTALL ON ALL CUT AND FILL SLOPES AND NEAR BANK DISTURBED AREAS. 2. INSTALL PER MANUFACTURER'S INSTRUCTIONS. 3. EC FABRIC SHALL BE WOVEN COIR MAT WITH 50% OPEN AREA (max.), 0.5 INCH MAX. OPENING SIZE, 4.5 Ibs/sq. ft. MAX. SHEER STRESS, 10 fps MIN. VELOCITY. OF SANK ANCHOR, TYP SEE FIGURE 12 JND, TYP P. DRAWN: GMH I TITLE I FIGURE PROJ. MANAGER: JMO DATE: 5/2005 CH2MHILL 4824 PARKWAY PLAZA BOULEVARD SUITE 200 CHARLOTTE, INC 28217 EC FABRIC INSTALLATION DETAIL 11 NTS =:\CAD\NRCS\Cad-Details\Fig11.dwg, 05/12/2005 03:52:00 PM, PDF995 (temporary).pc3 1T 17 TOP OF BANK ID CE 12' 3' EC FABRIC BACKFILL DEAD STOUT STAKE SEE FIGURE 10 TOP OF BANK ANCHOR NOTES: EC FABRIC BASE FLOW DEAD STOUT STAKE OR SEE FIGURE 10 INV BACKFILL MAT WRAPS OVER TOP OF STAKE Q TOE TOE OF BANK ANCHOR 1. CLEAN SOIL BACKFILL SHALL BE USED TO SECURE DEAD STOUT STAKES AND FABRIC INTO THE SOIL 2. FOR TOE OF SLOPE APPLICATIONS, FABRIC SHALL BE INSTALLED AS TO OVERLAP TRENCH 6 DEAD STOUT STAKE TO POSITION THE FABRIC FOR INSTALLATION UP THE BANKS. 3. START INSTALLATION OF EC FABRIC AT TOE OF SLOPE WRAP FABRIC OVER TOE OF BANK ANCHOR AND PROCEED UP THE BANK TO THE TOP OF BANK ANCHOR 4. FOR END OF GRADING APPLICATIONS, FABRIC SHALL BE INSTALLED PERPENDICULAR TO BANK AND ANCHORED PER TOP OF BANK DETAIL, WITH THE EXCEPTION THAT FABRIC DOES NOT EXTEND OUTSIDE OF TRENCH & FABRIC IS NOT EXPOSED. DRAWN: GMH TITLE PROJ. MANAGER: JMO DATE: 5/2005 EC FABRIC ANCHOR CH2MHILL DETAIL 4824 PARKWAY PLAZA BOULEVARD SUITE 200 CHARLOTTE, NC 28217 NTS FIGURE 12 50' MIN. PUBLIC STREET EXISTING GROUND Z to SOIL STABILIZATION FABRIC UNDER 2'-3' WASHED STONE 50' MIN' t7u W • OR AS SPECIFIED w ON PLAN SHEETS n N U J Q1 a NOTES: 1. A STABILIZED ENTRANCE PAD OF 2'- W WASHED STONE OR RAILROAD BALLAST SHALL BE LOCATED WHERE TRAFFIC WILL ENTER OR LEAVE THE CONSTRUCTION SITE ONTO A PUBLIC STREET. 2. FILTER FABRIC OR COMPACTED CRUSHER RUN STONE MAY BE USED AS A BASE FOR THE CONSTRUCTION ENTRANCE. 3. THE ENTRANCE SHALL BE MAINTAINED IN A CONDITION WHICH WILL PREVENT TRACKING OR FLOWING OF SEDIMENT ONTO PUBLIC STREETS OR EXISTING PAVEMENT. THIS MAY REQUIRE PERIODIC TOP DRESSING WITH ADDITIONAL STONE AS CONDITIONS WARRANT AND REPAIR OR CLEANOUT OF ANY MEASURES USED TO TRAP SEDIMENT. 4. ANY SEDIMENT SPILLED, DROPPED, WASHED OR TRACKED ONTO PUBLIC STREETS MUST BE REMOVED IMMEDIATELY. 5. WHEN APPROPRIATE, WHEELS MUST BE CLEANED TO REMOVE SEDIMENT PRIOR TO ENTERING A PUBLIC STREET. WHEN WASHING IS REQUIRED, IT SHALL BE DONE IN AN AREA STABILIZED WITH CRUSHED STONE. DRAWN: GMH TITLE FIGURE PROJ. MANAGER: MID DATE: 5/2005 STABILIZED CONSTRUCTION CH2MHILL ENTRANCE DETAIL 13 4824 PARKWAY PLAZA BOULEVARD SUITE 200 CHARLOTTE, NC 28217 N.T.S. STEEL POST WIRE FENCING -I A _ B 8' MAX. . STEEL POST WIRE FENCING i FILTER FABRIC 3 U J ? WOVEN FILTER FABRIC A B GENERAL NOTES: 1. FILTER FABRIC FENCE SHALL BE A MINIMUM OF 32' IN WIDTH AND SHALL HAVE A MINIMUM OF 6 LINE WIRES WITH 12* STAY SPACING. 2. WOVEN FILTER FABRIC BE USED WHERE SILT FENCE IS TO REMAIN FOR A PERIOD OF MORE THAN 14 DAYS. 3. STEEL POSTS SHALL BE 5'-0* IN HEIGHT AND BE OF THE SELF-FASTENER ANGLE STEEL TYPE. 4. WIRE FENCING SHALL BE AT LEAST #10 GAGE WITH A MINIMUM OF 6 LINE WIRES WITH 12' STAY SPACING. 5. TURN SILT FENCE UP SLOPE AT ENDS. 6. WIRE MESH SHALL BE MIN. 13 GAGE WITH MAXIMUM 12" OPENINGS. 7. WIRE AND WASHED STONE WILL BE REQUIRED WHEN: AT TOE OF SLOPES GREATER THAN 10 FEET VERTICAL (2:1 SLOPE) DRAWN: GMH PROJ. MANAGER: JMO DATE: 5/2005 ANCHOR SKIRT 6' MINIMUM IN LIEU OF BURYING SKIRT, 6" OF /5 WASHED STONE MAY BE USED OVER TURNDOWN. SEE SECTION B-B. SECTION A-A MAINTENANCE NOTES: 1. FILTER BARRIERS SHALL BE INSPECTED BY THE FINANCIALLY RESPONSIBLE PARTY OR HIS AGENT IMMEDIATELY AFTER EACH RAINFALL AND AT LEAST DAILY DURING PROLONGED RAINFALL. ANY REPAIRS NEEDED SHALL BE MADE IMMEDIATELY. 2. SHOULD THE FABRIC DECOMPOSE OR BECOME INEFFECTIVE PRIOR TO THE END OF THE EXPECTED USABLE LIFE AND THE BARRIER STILL IS NECESSARY, THE FABRIC SHALL BE REPLACED PROMPTLY. 3. SEDIMENT DEPOSITS SHOULD BE REMOVED WHEN DEPOSITS REACH APPROX. HALF THE HEIGHT OF THE BARRIER. ANY SEDIMENT DEPOSITS REMAINING IN PLACE AFTER THE SILT FENCE IS REMOVED SHALL BE DRESSED TO CONFORM TO THE EXISTING GRADE, PREPARED AND SEEDED. 4. REMOVE SILT FENCE 1 YEAR PAST CONSTRUCTION. CH2MHILiL 4824 PARKWAY PLAZA BOULEVARD SUITE 200 CHARLOTTE, NC 28217 N.T.S. TITLE TEMPORARY SILT FENCE DETAIL STEEL POST WIRE FENCING z FILTER FABRIC w U #5 WASHED STONE ° n J Q ,` ? ?p 0 r 6. ANCHOR SKIRT 6" MINIMUM SECTION B-B FIGURE 14 5' MAX. STREAM CHANNEL BANK HEIGHT .100(" 1, (' Itr .hlim h.,v a 000--' / V ro a : : ) ?' ?? SURFACE FLOW \ ) DIVERSION \t1Y) , /I \t1Y)\ 1 ? O ? , d ? 1 tl l) I C) 0) C) , o . _ ??)\?) \t I, ° o ° d p ; ?? 1. USE #57 WASHED STONE J"J) Y h( \t) \ \ \ `; o ^y 2. OMIT #57 WASHED STONE ON QV \41) STONE OVER FILTER FABRIC (SEE NOTE 2) STONE APPROACH SECTION 5:1 MAX. SLOPE ON ROAD CHANNEL BOTTOM IF CROSSING A COBBLED BED STREAM. 3. REMOVE STONE AND FILTER FABRIC AFTER CONSTRUCTION AND TIE INTO EXISTING GRADE. VEGETATE SITE ACCORDING TO PLANTING PLAN. ORIGINAL STREAMBANK STONE OVER " "j=.. ?., . ?. . o FILTER FABRIC 6" M I I DRAWN: GMH PROJ. MANAGER: JMO DATE: 5/2005 CH2MHILL 4824 PARKWAY PLAZA BOULEVARD SUITE 200 CHARLOTTE, NC 28217 r TEMPORARY ACCESS AS SPECIFIED BY ENGINEER FILTER FABRIC TITLE FIGURE TEMPORARY STREAM CROSSING DETAIL 15 NTS VSTAm3n.ER® No. 937 811 E Engineer's Computation Pad /?0'a of , 501 t t i 1 ? r Stour /i 3er,? Co•-?sti'Nc?%d? r 5 7tv41 f1 r /G a -? L ?a?•?5 ?rec, Co.ts7??..?? w4{cr ?ars a3 rleaessc?7 ?-o ol??e?? /'?. no{? ?• o.-t Zoc./ road, Sec /?rovro% 5???i??'Le? LaeteSS ?AoT . S7?'r'ea•ti . SSG ?-G.•+?dar,,.?./ $ f?e,?,..,, W e.5 re- S /--e- »'t 64tH G C, ,/,& 7, Ire, t ) - - ^ -• -f /c rt r'c - o *r 6 oN/GtPr 1,1,6 r ? SeOI•'?»o n ?• oil ? _ Cori?rb/•' , ^'?'^ info S/..Bp ... .,..• _. _- ..._ _. - _ _ "_ _ . / O,O C i" 13 , k . Source: NC Land Quality Section Figure 16 4/tr1vf j)STAEDTLER° No. 937 811 E Engineer's Computation Pad 50' 5J?.6; li s e cr Ca.?s?/Nof•??v> G /l ?/OKLG r l < /'?Aw ? ?QdGQ r?/oJa? ?/a,? wa 4SF ,fie ma&,'s - ` laSC-11 %/1 Q lOSs 07' /111940 sa/es S!Q /? c ??oy l lore v?'04cl vo l0ec f ar-7' ;,We ?? SeG!'.f?e.+7? ?an?re? /tJoasa?e''? GI+,pO/??r/ C /'GOB !.•(i it - Pell ?? ?JvT7 e,S SHOr/O' iii 1't 71eG? /=loom /7/,:, / ??e.•+o( /?re.G / /moss. ? ?i3//7yy?k /Llo? GrgoS/ wi f-?,tn y?? ?7N q F/ xAv-1A/6e 57?.?v i I?la?( e W, Source: NC Land Quality Section Figure 17 41 rt,- j' srAEDT1 FR® No. 937 811 E Engineer's Computation Pad ?d q ?l ro si.4 /sae/ CnnJ??..c/r vi Co?s?'?«???- L,?d?ri ,cis GS ?rc wt `4..1 /'040(, See. ' ! /Da?) {vr 1je?,•-y1/YIoyGf?+;..e?7 .S/.'11/Ii l./ ?O ?.UH.37 r•••r"I•U?s d3,si1c.gIC t // ?) 1 /?C ,5l OIL .S / /ew's+t ?/G ?1 / GAG( .{mac-/?M Gf/?o? G o n???/e ?,b.r c> 7? G?e.? r. S 1 ? re •=rU va ? r elect f ? f 1 ? G a.r fi ro r f7'lea5 ? ?? O?ai.fG ?S? ?Q{eelZon? ?i>ir f TrOM sIwt• f: jar'/ ?9 u ?m i.rf u erjaYr'«" f oia o 6p- ? i o?n o 43,11/4 - _ - ?_ - - - - - 7tv scale, .Source: NC Land Quality Section Figure 18 4???os Organic Debris Removal Standard Operation Procedures (SOP) Emergency Watershed Protection (EWP) Stream Repair Projects Buncombe County, North Carolina SCOPE OF WORK The work shall consist of the cleanup of designated stream areas by the removal and disposal of trees, logs, stumps, brush, tops, rubbish, and other debris deposited in the stream channel and floodplain by the storms of September 8 and 16, 2004. CLEARING AND DEBRIS REMOVAL Debris removal crews shall remove only that material which has been clearly marked by a representative of Buncombe County and/or CH2M HILL, INC (Representative) as indicated by flagging and/or orange/red spray paint. ONLY marked debris is to be removed. Representative cannot authorize additional work. Any work that will result in an increase in cost must be submitted to CH2M HILL for approval prior to starting such work. In the event that the contractor uses on-site chipping, the chipper may follow the clean-up crew along the length of the project reach. The Contractor is responsible to properly dispose of chips. Proper disposal may include spreading on site or removing off-site. On-site disposal requires written approval by the property owner. Unless specifically requested to leave the chips in a pile by a property owner the chipper shall make reasonable efforts to spread the chips as chipping progresses. Chippers and other heavy equipment will be staged and used at least 30-feet from the top of the streambank or on existing paved or graveled areas prepared in accordance with standard details described in Figure 18 (see Typical Design Drawings). Repair of any property damage resulting from debris removal is the sole responsibility of the Contractor. All debris removal shall be within the included sites as identified in this solicitation and as directed by the Representative. For bid preparation purposes, the Representative has marked and identified debris to be removed. Removed debris shall be placed only in those areas as directed by the Representative. For Bid purposes, debris staging areas are assumed to be within 300 feet of top of bank. On-site burning is not allowed. Fallen trees, limbs and dislodged brush within the cross section of the existing or original channel up to and including the debris line of the subject storm shall be removed. Any foreign (man-made) debris washed in from upstream, shall be removed. Marked trees severely undercut by stream bank erosion and trees severely leaning over the channel whose near term fall is apparent shall be removed. In general, Contractor clearing will be limited to the cutting of severely damaged trees leaning across the channel, and other trees as needed to gain access for equipment to points of channel blockage. PABuncombeCountyNc\328275\Permits\Newfound PCNs\Final PCNs and Attachments\Design Attachments\Buncombe Debris Removal SOP.doc Disturbance of the channel bottom and banks, and equipment access areas shall be held to the minimum necessary to allow the construction equipment to remove the debris and shall be consistent with all state and federal permits. All areas disturbed due to debris removal or equipment access shall be reshaped and reseeded in accordance with standard details described in Figures 7-18 (see Typical Design Drawings). Access to the channel will generally be perpendicular to the channel so cutting of trees i held to a minimum with precaution taken to protect mast producing and stream canop trees. Un-marked dead trees that provide den habitat and are determined to pose no hazard to the channel shall be protected. As such, the contractor will only remove marked debris. The contractor will exercise care in the areas of existing crops to minimize damages. PROVIDED EQUIPMENT & FACILITIES The Contractor shall provide adequate sanitary facilities for equipment operators and work crews. Portable facilities shall be provided at the worksite and arrangements made for proper servicing. A portable facility will be provided within 1,000 feet of the equipment and/or work crews at all times. COMMUNICATIONS Each mechanized piece of equipment and each work crew shall be equipped with a two way, battery operated radio. Radios shall be FM, have a minimum range of 5 miles. Radios shall be maintained "on" and in the receive mode at all times while the operator Is at the site. Batteries shall be recharged overnight or as needed. An extra set of fully charged batteries shall be maintained on board the equipment at all times. Radios shall be equipped with clip-on hand mikes or headsets. Radios shall be maintained in good operating condition and equipment operators shall be knowledgeable in the use and care of the radios. Each Contractor site supervisor shall also maintain a secondary communication system compatible with the Representative's system. Brush Removal Guidelines • Small diameter brush and limbs (less than four inches in diameter) that will not cause damage if remobilized by high water will be cut into short lengths (five feet long or less) and left in place. • All marked, dislodged or uprooted larger diameter brush will be removed from the channel or streambank and chipped in designated areas greater than 30-feet from the top of the bank. • Saplings and shrubs with an intact root system are not to be removed. P:\BuncombeCountyNc\328275\Permits\Newfound PCNs\Final PCNs and Attach ments\Dcsign Attachments\Buncombe Debris Removal SOP.doc Tree Removal Guidelines • Trees will be chipped in designated areas greater than 30-feet from the top of the streambank. Chippers and/or tub grinders may be staged on-site with written consent from the property owner or at a central location approved by the County. • Larger diameter trees may be pulled to the chipper using a mechanized winch provided the process does not create excess disturbance to the streambank. • Marked trees whose near term fall is apparent should be cut at the marked location, which will be indicated by a painted ring around the trunk at least three- feet above the ground surface. The root system shall not be removed from the streambank. • As approved by the Representative, larger diameter trees that cannot be moved using hand equipment will be cut to manageable lengths and removed. • The sale of chips or firewood is not allowed. Foreign Debris and Trash Removal Guidelines • Foreign (manmade) debris and trash will be bagged in orange trash bags where possible. • Filled trash bags will be removed from the channel and transported directly offsite by the Contractor to a local landfill. • Large debris must be loaded into a dump truck or roll-off container and transported to a local landfill for disposal. • Tipping fees for disposal shall be paid by the Contractor. Stream bed and Bank Repair Guidelines • All temporary stream crossings shall be installed as described in Figures 15 -18 (see Typical Design Drawings). • All Stream embankments disturbed by Contractor activities, denuded, or left bare as a result of debris removal shall be regraded, planted, and erosion control fabric installed as described in Figures 6, 7, and 9 - 12 (see Typical Design Drawings). Temporary staging, chipping, and work access points shall be regraded and grassed using a native grass/herb mix as outlined in Figures 6, 7, and 16 - 18 (see Typical Design Drawings). P:\BuncombeCountyNc\328275\Permits\Newfound PCNs\Final PCNs and Attach ments\Design Attachment s\Buncombe Debris Removal SOP.doc i • Contractor shall install erosion control measures as outlined in Figures 10 -1?. i SUPERINTENDENCE OF EOUIPMENT AND WORK CREWS Any contractor providing three (3) or more pieces of equipment or five (5) or more work crew or equipment operators shall provide a non-working crew superintendent in addition to the required laborers and operators. The contractor shall designate in writing the names of the crew superintendent and an alternate prior to award of the contract.) The crew superintendent shall provide on-site supervision of work crews and equipment operators. The crew superintendent shall be responsible for the safety of work crews land for the location and servicing of portable sanitary facilities. He/she shall be equipped with a portable communication as specified above. The crew superintendent shall communicate with the Representative to assure that work crews and equipment are performing at a satisfactory level. The crew Superintendent shall coordinate with the Representative to schedule equipment and operators for each days work and as far in advance as possible. The superintendent shall be responsible) for keeping up with the daily operating times of all work crews and equipment and shall) maintain a log of daily equipment and work crew operations. He/she shall coordinate daily with the Representative to concur on actual footage of streambank cleared. WORK DIRECTION Contractors and equipment operators will not perform activities requested or instructed by landowners or others at the worksite, except as confirmed by the assigned Representative. i ENVIRONMENTAL CONSIDERATIONS Earth moving equipment will cross and operate in the stream flow only when necessary and only when directed to do so by the Representative. Equipment shall be maintained to prevent fuel, oil and lubricant spills in the vicinity of the stream. Refueling, repairs and lubrication will be performed at safe distances from the stream and only at locations approved by the Representative. Should fuel leaks, oil leakages or hydraulic pipe rupture occur during construction, the operators will immediately remove the equipment to a "safe" area and proceed with repairs. The Representative will direct operators to remove equipment from the stream whenever a leak is observed or suspected. i P:\BuncombeCountyNc\328275\Permits\Newfound PCNs\Final PCNs and Attachments\Design Attachments\Buncombe Debris Removal SOP.doc 4 SAFETY Contractor shall be responsible for the safe execution of this work and conform to all applicable state and federal regulations. Additionally, at work sites, where equipment will be operating on public roads, flagmen shall be stationed to warn oncoming traffic of congestion, construction road signs shall be in place and a means of removing sediment, mud or rocks from roadways shall be established. Residue deposited on roadways may be removed by sweep machine, manual sweeping methods or pressurized water. The contractor will be responsible for the implementation of these measures. Chain saw operators will be expected to perform debris removal operations during periods of extreme weather conditions and in areas of deep and fast moving water. The contractor is responsible for providing the necessary equipment, clothing and other gear to insure that laborers can perform effectively and safely under these conditions. The Contractor shall determine if working conditions are hazardous and/or of sufficient extreme to prevent efficient and effective operation. When such conditions exist, the Contractor shall shut down work crews until conditions improve. EQUIPMENT Equipment selection to complete the work is the Contractor's responsibility. The following list of equipment has been utilized on similar debris removal projects and is provided as a courtesy to the Contractor. This is not a requirement. Item No.1 Hydraulic Track Mounted Excavator with Experienced Operator Min. Weight 48,000 lbs Min. Reach 26 feet Min. Digging depth 22 feet Equipped with thumb Min. Bucket size 1.0 cu yds. Equipped with two-way radio Min Horse Power 140 HP Item No. 2 Skidder with Experienced Operator and Two Helpers Rubber Tired with Winch and Blade Min Horse Power 80HP Min. Winch Cable Wire Rope -150 ft and 5/8 inch diameter Min Chokers: 4 with 2 Chain saws Min. 20-inch bars with daily supply of sharpened chains (min. 3 chains) Equipped with two-way radio Item No. 3 Dump Truck with Experienced Driver Rear dump haul truck tandem axle min. Capacity -15 tons equipped with two-way radio P:\BuncombeCountyNc\328275\Permits\Newfound PCNs\Final PCNs and Attachments\Design Attachments\Buncombe Debris Removal SOP.doc Item No. 4 Chipper 14-inch capacity Tub Grinder 8-foot interior tub diameter P:\BuncombeCountYNc\328275\Permits\Newfound PCNs\Final PCNs and Attachments\Desi gn Attachments\Buncombe Debris Removal SOP.doc 6 [Fwd: [Fwd: [Fwd: STream Clearing Activities]]] Subject: [Fwd: [Fwd: [Fwd: STream Clearing Activities]]] From: Cyndi Karoly <cyndi.karoly@ncmail.net> Date: Wed, 16 Mar 2005 15:58:57 -0500 To: Laurie J Dennison <Laurie.J.Dennison@ncmai1.net> fyi - so please note that fees are waived when you create these files - perhaps a brief handwritten note in the file jacket, or we can add a copy of this message Subject: [Fwd: [Fwd: STream Clearing Activities]] From: Tom Reeder <tom.reeder@ncmai1.net> Date: Wed, 16 Mar 2005 15:43:18 -0500 To: Cyndi Karoly <cyndi.karoly@ncmai1.net> Cyndi - In answer to your question yesterday it appears that the fees are being waived for the EWP associated 401s. Subject: [Fwd: STream Clearing Activities] From: Alan Klimek <alan.klimek@ncmail.net> Date: Wed, 16 Mar 2005 15:37:40 -0500 To: Tom Reeder <Tom.Reeder@ncmail.net> Yes, the fees are being waived. See attachment. Alan -------- Original Message -------- Subject:STream Clearing Activities Date:Mon, 28 Feb 2005 09:40:08 -0500 From:"Robin W. Smith" <robin.w.smith(a?ncmail.net> Organization:NC DENR To:Alan Klimek <Alan.Klimekancmail.net>, Jim Simons <.Iim.Simonsnncmail.net>, David Vogel <David.Vogeloncmail.net> CC:Johanna Reese <Johanna.Reesepiicmail.net>, Narm Guthrie <Nann.Guthrie ancmail.net> `Ill : Attached is an electronic copy of the letter and information sheet sent to the 19 counties and one town that have contracts with NRCS for stream clearing projects. Those letters went out over the Secretary's signature on Friday. We will hand-deliver a memo containing the same basic information to the mountain area legislators tomorrow. We are also working with the Governor's Office on a news release; I am not sure how soon that will go out. Give me a call if you have any questions. Thanks for working toward getting meetings set up. Robin. 1 of 2 3/17/2005 6:46 AM [Fwd: [Fwd: [Fwd: STream Clearing Activities]]] Robin W. Smith <robin.w.smith(q',,ncmail.net> Assistant Secretary of Planning & Policy Office of the Secretary NC DENR Content-Type: message/r&822 [Fwd: [Fwd: STream Clearing Activities]] Content-Encoding: 7bit Content-Type: message/rfc822 [Fwd: STream Clearing Activities] Content-Encoding: 7bit Content-Type: application/msword EWP letter to counties.doc Content-Encoding: base64 - Content-Type: application/msword Stream-Clearing Activities-3.doe Content-Encoding: base64 2 of 2 3/17/2005 6:46 AM February 25, 2005 Page 1 of 2 February 25, 2005 RE: Emergency Watershed Protection Stream-Clearing Projects Dear I know that County experienced stream damage as a result of the fall hurricanes. Our department would like to work closely with your county to insure that stream restoration projects receiving state and federal funds under the Emergency Watershed Protection (EWP) program move as smoothly as possible through the environmental review and permitting process. I have enclosed for your information a brief summary of the types of permits and approvals that may be required for these projects. For projects that involve work directly affecting the streambed, the United States Army Corps of Engineers will be the primary environmental permitting agency. For those projects, our staff in the Division of Water Quality and the Division of Land Resources play a supporting role and issue related state approvals. I have asked our staff to meet with all of the western counties, either individually or in small groups, to talk about each county's proposed stream restoration projects and answer your questions about permit requirements. Our staff will ask the Corps of Engineers and Soil and Water Conservation staff to join in those meetings in an effort to put together a plan of action for reviewing and approving stream restoration projects as quickly as possible. You should receive a telephone call from DENR staff soon to talk about a date and time that would be convenient to meet and talk about your projects. I have also directed our staff to waive fees for state water quality certifications (under Section 401 of the Clean Water Act) and for approval of erosion and sedimentation February 25, 2005 Page 2 of 2 control plans for stream-clearing projects funded under EWP. Fees will be waived for all EWP pen-nit s requested by September 1, 2005. I hope these efforts will ease the burden on county governments already challenged by the demands of reconstruction and recovery. If we can help you in any other way, please do not hesitate to call. I have asked Assistant Secretary Robin Smith to be a,primary contact on these projects for DENR; you can reach Ms. Smith at (919) 715-4141. The enclosed information sheet also provides contact information for DENR staff in both the Asheville and Winston-Salem Regional Offices and for the Corps of Engineers office in Asheville. Sincerely, William G. Ross, Jr.