Loading...
HomeMy WebLinkAbout20070586 Ver 1_401 Application_20070307~} ~ ENGINEERING sc HYDROGEOLOGY 50 COLLEGE STREET, ASHEVILLE, NC 28801 TEL. 828.281.3350 FAC.828.281.3351 www.altamontenvironmental.com March 28, 2007 Mr. Steve Chapin US Army Corps of Engineers 151 Patton Avenue, Room 208 Asheville, NC 28801-5006 Ms. Cyndi Karoly NCDENR, Division of Water Quality 401 Wetlands Unit 1650 Mail Service Center Raleigh, NC 27699-1650 07.0586 FNYs~~~^ E~aT RECEIVED .. _. . ,. ~~ ;, Mr. Kevin Barnett Mr. David McHenry NCDENR, Division of Water Quality NC Wildlife Resource Commission b.:, , Asheville Regional Office 20830 Great Smoky Mountain Expressway 2090 U.S. Highway 70 Waynesville, NC 28786 Swannanoa, NC 28778 Subject: Streambank Stabilization DWR-04-Little White Oak Creek / Williams Property Streambank Stabilization Polk County, North Carolina Dear Messrs. Chapin, Barnett, and McHenry and Ms. Karoly: Enclosed please find the pre-construction notification (PCN) for Streambank stabilization on property owned by the Williams family in Polk County. Work applied for in this permit includes Streambank stabilization, riparian buffer restoration/enhancement and debris removal. The project site has been identified by the Polk County Soil and Water Conservation District as one area eligible for North Carolina Department of Environment and Natural Resources (DENR), Division of Water Resources (DWR) Water Resources Development Project Grant funding. The State of North Carolina has recently provided funding through the DWR for damaged areas that were not addressed by the federal Emergency Watershed Protection (EWP) program. The project area consists of approximately 3,091 linear feet of stream located along Little White Oak Creek and one unnamed tributary in the community of Mill Spring, North Carolina. The project will address both sides of the creek and the tributary in the upstream portion of the project area. In the downstream portion of the project area only the Streambank and riparian corridor on river left will be addressed. One thousand eighty nine linear feet of Streambank will be disturbed during the project to width of 20 feet from the edge of water. Approximately 0.90 acres will be disturbed in total including access routes and staging areas. The remaining 2002 linear feet of Streambank on river left will be cleared of debris and garbage. Exotic invasive plants will be removed and native trees and shrubs will be planted to enhance the riparian vegetation in these areas. Planting of native herbaceous plants, trees and shrubs in both stabilization and enhancement areas will increase the width of the riparian corridor in the project area to no less than 20 feet from the edge of water along Little White Oak Creek and the tributary. A signed Access/Agent Authorization Letter is attached to the signature page of the PCN document. A site vicinity map is included as Figure 1. A Site Plan is including cross-sections, profiles and plan views of the project is included as Figure 2. Illustrations for Construction of Structures, and Photographs and Descriptions of the site are attached. The tributary to Buck Creek is classified by the DENR as "C" waters throughout the project area. P:\Polk SWCD NRCS\Polk DWR nroiects 02-08\Williams Site-DWR-04\Williams PCN cover letter.doc . , Messrs. Chapin, Barnett, McHenry and Ms. Karoly March 28, 2006 Page 2 of 2 Altamont appreciates your review of this application. If you would like additional information, please contact the undersigned. Sincerely, f .. ~~~ Joel D. Lenk, P.G. Enclosures: Check for permit fee (Ms. Karoly only) PCN- DWR-04-Little White Oak Creek / Williams Property Access/Agent Authorization Letter Figure 1-Site Vicinity Map Figure 2-Site Plan Illustrations for Construction of Structures Photographs and Descriptions cc (letter only): Polk County Soil and Water Conservation District P:\Polk SWCD NRCS\Polk DWR oroiects 02-08\Williams Site-DWR-04\Williams PCN cover lettecdoc Office Use Only: Form Version May 2002 USACE Action ID No. DWQ No. ' ~ 7 ~ ~ 5 8 6 (If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".) I. Processing PAYMENT RECEIVED 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 13 and 27 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: Property Owner: Yates and Margie Williams Mailing Address: 384 Martin Walker Road Mill Spring, NC 28756 Telephone : 828-894-8405 Applicant: Polk County Soil and Water Conservation District PO Box 236 # 4 Annex Building Columbus, NC 28722 Telephone: 828-894-8550 Fax:828-894-2231 Email: sandra.reid(a~nc. nacd. net 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: Joel D. Lenk Company Affiliation: Altamont Environmental, Inc. Mailing Address: SO College Street Asheville, NC 28801 Telephone Number: (828) 281-3350 Fax Number: (828) 281-3351 °--~ ~_~ ~ ~ r E-mail Address: srymannas,altamontenvironmental.com ~`~ # ~~;~ `'r?r'-°= 1~.~ ~~ 1r '^1 mac. ~_i~ rarr^~~ ,'~ fi ?Eli;/ _. Page 5 of 18 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. Name of project: DWR Project 04-Little White Oak Creek / Williams Property Streambank Stabilization Note: The proposed project will be taking place entirely on the Williams Property. 1. T.LP. Project Number or State Project Number (NCDOT Only): N/A 2. Property Identification Number (Tax PIN): P70-28 and P56-73 3. Location County: Polk Nearest Town: Columbus, NC Subdivision name (include phase/lot number): N/A Directions to site (include road numbers, landmarks, etc.): From I26 east, exit at the Columbus / Tryon exit # 165 and follow the signs to Columbus which will put you on Highway 108 east. Follow Highway 108 through the town of Columbus approximately four miles to Mill Spring at the intersection of Highway 9 and 108. Turn left on Highway 9 and immediately make a left on Silver Creek Road (State Road 1138). Follow Silver Creek approximately three miles and turn right on Martin Walker Road. The site is located on the east (right) side of Martin Walker Road approximately one quarter mile from the intersection of Silver Creek Road and Martin Walker Road where Little White Oak Creek turns from a northerly direction 90° to the east and extends downstream to the east for approximately 3000 feet. 4. Site coordinates, if available (UTM or Lat/Long): approximate center of project area is 035° 18' 44.95" N 082° 10' 51.29" (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.) 5. Property size (acres): approximately 96 acres; Disturbed acreage will be approximately 0.90 acres. Page 6 of 18 6. Nearest body of water (stream/river/sound/ocean/lake): The project is adjacent to Little White Oak Creek 7. River Basin: Broad River (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/.) 8. 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 project site consists of woodland areas and livestock pasture. Surrounding land consists of rural residences, rural roads and farmland. Little White Oak Creek was significantly damaged by hurricanes Francis and Ivan in September, 2004. Furthermore, the project area exists in an area used heavily by livestock. These conditions coupled with land disturbing activities higher in the watershed, and storm events more recent than 2004, have left the Little White Oak Creek streambanks in a non /poorly vegetated eroding state. The project area is located on the Williams property and runs alongside Little White Oak Creek and one unnamed tributary for approximately 3, 091 feet. The project area is bounded at the upstream end by a cattle fence and by an unnamed tributary entering from river left at the downstream end of the project area. Many damaged areas along streams and rivers throughout the southeastern United States were repaired through funding provided by the Natural Resource Conservation Service (MRCS) as part of the Emergency Watershed Protection (EWP) program. The NRCS program required economic justification for discrete repairs and primarily addressed flood damaged areas adjacent to homes or commercial agricultural areas. As a result, the EWP program did not address some severely eroded streambanks adjacent to undeveloped land. The State of North Carolina has provided funding through the DENR Division of Water Resources (DWR) Water Resources Development Project Grant program for damaged areas that were not addressed by the EWP program and targets streambanks that are actively contributing sediment to waters of the U.S., reducing water quality. The Williams site has been identified by the Polk County Soil and Water Conservation District as one area eligible for DWR funding and for this project DWR funding will be coupled with the National Resource Conservation Service Cost Share funding to fence cattle out of the stream and to establish a minimum 20 foot buffer between livestock areas and the stream. The project area consists of approximately 3, 091 linear feet of stream located along Little White Oak Creek and one unnamed tributary in the community of Mill Spring, North Carolina. The project will address both sides of the creek and the tributary in the upstream portion of the project area. In the downstream portion of the project area only the streambank and riparian corridor on river left will be addressed. One thousand eighty nine linear feet of streambank will be disturbed during the project to width of 20 feet from the edge of water. Approximately 0.90 acres will be disturbed in total including access routes and staging areas. The remaining 2002 linear feet of streambank on river left will be cleared of debris and garbage. Exotic invasive plants will be removed and native trees and shrubs will be planted to enhance the riparian vegetation in these areas. Planting of native herbaceous plants, trees and shrubs in both stabilization and enhancement areas will increase the width of the riparian corridor in the project area to no less than 20 feet from the edge of water along Little White Oak Creek and the tributary. A signed Access/Agent Authorization Letter is attached to the signature Page 7 of 18 page of the PCN document. A site vicinity map is included as Figure 1. A Site Plan is including cross-sections, profiles and plan views of the project is included as Figure 2. Illustrations for Construction of Structures, and Photographs and Descriptions of the site are attached. The tributary to Buck Creek is classified by the DENR as "C"waters throughout the project area. Describe the overall project in detail, including the type of equipment to be used: SUMMARY Using a track mounted excavator streambank slopes along Little White Oak Creek will be benched at or slightly above the determined bankfull elevation. Above the bankfull bench, bank slopes will be made less steep and will be adjusted to a final slope of approximately three horizontal to one vertical with out damaging existing quality riparian vegetation. In areas where large living trees are too close to the existing bank to allow for such a slope, the slope will be softened as much as possible without causing damage to trees that are holding the bank in place. Rootwads may be installed just upstream of areas where the bank is steeper to deflect and dissipate stream jlow away from the bank. Toe areas of the repaired slopes may be reinforced in higher stress areas with large angular boulders.. In these areas, one row of boulders will be placed in a footer trench. The footer trench will be lined with filter fabric, and rock toe protection will be backed with filter fabric as well. Depending on the vulnerability of the area, another tier of large boulders may be placed on top of the footer rock and set back approximately one-two feet in order to match the desired slope of the streambank. Void spaces behind the footer and tiers of rock will be back-filled with material that was excavated during the installation of the footer trench. When backfilling is complete, excess filter cloth protruding from between the boulders and the backfrll will be trimmed to an elevation slightly higher than the elevation of the top of the boulder toe protection. Single veins and cross veins constructed of either large angular rock or hardwood tree trunks may be used to help turn flow in streambends and protect streambanks in high stress areas on the outside of turns in the stream. Live fascines may be buried in the streambank where feasible at an elevation approximately equal to bankfull. Fascines will consist of bundles of a variety of live cuttings taken from native species of trees. The live cuttings used for fascine bundles will be no larger than one inch in diameter and will be approximately three to four feet in length. Tips of live cuttings will be oriented in the same direction but cut to varying lengths before placement in the fascine bundles. Fascine bundles will be bound together with heavy biodegradable twine and placed in trenches with the tips facing in an upstream direction. The live Fascines will take root and quickly begin to anchor and further strengthen the toe of the streambank slope soon after installation. After the streambank slopes are adjusted, and toe protection consisting of boulders, rootwads and fascines is installed, disturbed non-vegetated areas of the project will be hand seeded with annual rye or similar grain. Coir and Jute matting will be installed over the areas of bare soil, trenched in on all sides and held down by wooden and live stakes. Seeding of these areas with a native seed mix will follow, and caution will be used to keep seed, mulch and fertilizer out of the river and above the typical high water elevation in order to reduce the risk of eutrophication. Finally, riparian areas in the remainder of the project area will be enhanced by removal of exotic and evasive plants and planting of sparsely vegetated areas with a variety of native bare-root, container and live-stake trees and shrubs to a width no less that 20 feet Page 8 of 18 from the waters edge. All plantings will be watered in after installation and subsequently, as needed for one year post construction. These plantings will help re-establish riparian vegetation within the project area reducing sediment load to the stream, provide a more stable streambank and future shading of the channel. Trees and shrubs will be purchased and planted while dormant or during the appropriate planting season. The project will include removal of debris (i. e. large trees, brush and trash) form the stream channel and banks. Debris that is currently obstructing water flow, limiting hydraulic capacity of the river channel, forcing flow into unprotected banks or is an environmental hazard will be removed. Debris that is natural, stable and is situated such that it is protecting vulnerable banks will be left in place. Trees removed as debris and their root balls may be used for bank stabilization and as aquatic and terrestrial habitat as rootwad structures in several locations within the project area. Rootwads are planned for use where the existence of large live trees will not allow grading of the streambank to a preferable three horizontal to one vertical slope. Trees selected for rootwads will be cut 1 S to 20 feet up the trunk from the roots and sharpened to a point with a chainsaw. In locations were rootwads are used a trench will be excavated large enough to burry a footer log parallel to the streambank at the toe of the slope. The rootwad will be inserted sharpened trunk first in to the bank and the trunk just above the roots will rest on the footer log. The rootwads will be oriented so that stream flow is deflected away from the streambank to protect large living trees in these locations. Placement of the rootwads at an angle approximately SS degrees from the upstream bank will provide deflection of streamwater in an effort to preserve near bank mature live trees. Rootwads and footer logs will be installed so that the bottoms of the structures extend to the mcxximum scour depth of the channel and the top of footer log and bottom of rootwad log are roughly the same elevation as the stream invert. Rootwad trunks will be inserted into the streambank by a track mounted excavator so that the root ball is exposed and at least two thirds of the trunk is buried in the bank. Rootwads and footer logs will be backfilled with material excavated from footer log and rootwad trenches and where necessary will be stabilized on either side with large angular rock or rip rap. Equipment used to accomplish the above tasks will include: rubber tired back-how /loader, a track mounted excavator with hydraulic thumb, one or two 1 S ton dump trucks, and hand tools. A wood chipper may be used to reduce the amount of debris to be hauled away from the site and minimize potential disposal fees. Wood chips may be used to mulch areas beyond the top of bank. DETAILS The following activities are proposed within the project area: An area adjacent to Little White Oak Creek within the Williams property located in Polk County, North Carolina has been identified by the Polk County Soil and Water Conservation District Office as eligible for monies provided by the State of North Carolina through a DWR grant. The Polk County Soil and Water Conservation District Office and Altamont Environmental, Inc. (Altamont) plan to stabilize over-steepened streambanks and enhance the riparian buffer along the 3, 091 linear foot project reach. The structures proposed for streambank stabilization at the site are: Rootwads, Rock Toe Protection, Page 9 of 18 Single and Cross Veins, and Live Fascines. These structures coupled with softening of the streambank slope should provide a lasting repair that leaves the project area in a more natural state of equilibrium. Once the streambank is stabilized native species of herbaceous plants, shrubs and trees will be planted on the streambanks and in disturbed areas of the site. An Access/Agent Authorization Agreement is attached to the signature page of this PCN. A Site Vicinity Map is included as Figure 1. Cross-sections, proposed construction plans, profile of the stream and a plan view of the project area are included as Figure 2. Illustrations for construction structures, and photograph and descriptions of the project area are attached at the end of this document. • Before construction at the site begins, existing live trees and vegetation that are identified as stabilizing the streambank will be flagged to be left in place. Project area boundaries will also be identified and marked. • Some removal of organic and non-native material from the channel may be necessary in areas where the hydraulic capacity of the stream channel has been reduced based upon onsite observations and evaluation of existing cross-sections. Trash that has been dumped along the stream will be removed and taken to an appropriate disposal facility. • Using the track mounted excavator and the backhoe, streambank slopes within the project area will be benched at or slightly above bankfull elevation and adjusted from their near vertical state to a slope of approximately three horizontal to one vertical or flatter; except where large living trees close to the bank prohibit grading. In these areas, rootwad structures may be installed and slopes will be softened as much as possible. Some adjustment of the slope before installation of structures will allow for easier access to the project area, will compact the slope and will eliminate the need to access the streambanks from the water. • Debris generally consists of trees, stumps, woody material and trash. This material will be removed from the stream channel using the track mounted excavator equipped with a hydraulic thumb. Some of the larger dead trees will be used as rootwads structures within the project. Woody debris removed from the channel will be reused as rootwad structures or disposed of either as firewood, chipped into mulch, hauled to an appropriate landfill or some combination there of. • For streambank areas where rock toe protection is used, a footer trench will be excavated at the toe of the slope. The footer trench will be excavated to a depth of approximately two feet or deep enough to bury each footer rock to a depth equal to three-quarters of its thickness. Ideal dimensions for large angular rock to be used at the site are three feet by two feet by two feet or larger. Footer trenches will be dug in a downstream to upstream sequence in order to limit the amount of sediment discharged to the stream and limit the flow of water into the trench. Footer trench lengths will be dug in sections equal to the width of the filter cloth to be used for the project in order to limit disturbance of the channel bed material. Completing the project in sections will limit the number of times the trench will have to be re-excavated due to sediment washed in by the stream. Footer trenches at their upstream and downstream locations will be keyed in the streambank so that during periods of high flow, water cannot get behind the rock toe protection and compromise the structure. Page 10 of 18 • After a section of footer trench is dug, filter cloth will be placed in the trench and a sufficient amount of cloth will be extended up the streambank to back the footer and next tier of rock once it is placed. Footer rock of a size described above will then be placed in the trench securing the bottom of the filter cloth in place. • After the footer rock is placed the filter cloth will be held up so that it backs the footer rock while the void behind the footer is backfrlled with material that was excavated from the trench. • Again the filter cloth will be laid on the streambank while the first tier of rock is placed atop the footer. This first tier of rock will be placed partially on the footer and partially on the backfrll, set back in a manner to match the slope of the streambank. • Once the first tier of rock is placed on the footer, the filter cloth will again be held up so that the remainder of the rock structure. can be backfilled. • If live fascines are installed, this will occur when construction of the rock toe and rootwad structures is complete. A trench approximately one foot by one foot will be excavated just above the rock toe protection structure at an elevation at or slightly above bankfull. Live fascines will be installed in the trench and the trench will be backfilled. Fascine trenches will be excavated to dimensions slightly smaller than the fascine bundle, so that the top of the fascine is exposed. Live stakes will be driven through the fascines to secure them in place. Subsequent growth of the fascines will further stabilize the toe of the streambank as roots interlock with soil, matting and rock in these locations. After streambank slopes are adjusted, and structures are installed, all disturbed areas will be hand seeded with annual rye grass or a similar grain. Coir mat will be installed over the completed fascines and bare soil near the toe of the streambank and will extend up the streambank to an elevation above bankfull elevation. Jute mat will be used on the upper portion of the slopes to stabilize soils during initial growth of vegetation. On- site temporary seeding and mulching will occur on the remainder of bare soil within five days of ground disturbing activities to provide long-term erosion control. • When the construction portion of the entire project area is complete, all disturbed areas will be seeded with a native seed mix above typical high water elevation. Care will be taken to keep seed, mulch, and fertilizer out of the stream to prevent the risk of euotrophication downstream. • Post seeding, disturbed areas will be planted with a diverse variety of bare-root, container and live-stake native plants, shrubs, and trees based on observations made of plants that are naturally occurring within the stream corridor or could exist with in the region. Planting will conform to the guidelines prescribed in the NCDENR Ecosystem Enhancement Program, Guidelines.for Riparian Buffer Restoration. Re-seeding will be conducted, as necessary, with a native annual and perennial seed mix with a temporary nursery crop of wheat, millet, or other grain. Woody vegetation will be planted during the appropriate planting season or will be kept dormant in coolers until planted. Planting is expected to take place no later than early May. Page 11 of 18 Stabilization of streambanks will require placement of material in wet conditions. In such cases, sand bags, or the equivalent, will be used to deflect water flow away from the work area, as well as prevent water from accumulating in the work area. Standard erosion and sedimentation control measures will be utilized throughout the duration of project. Care will be taken to avoid adverse affects to adjacent or downstream property owners. At the work site, work shall proceed from downstream to upstream to reduce sediment loading. Staging areas for equipment and material will be placed in upland areas away from surface water and outside of the floodplain. Work will proceed as follows at the work area (as applicable). 1. Flag the work limits. 2. Mark live trees and shrubs to be protected. 3. Construct temporary construction entrance /exits, where necessary. 4. Place erosion control fencing and other protective measures as necessary.. S. Adjust streambanks where necessary, install structures, remove exotic species and install native plant material. 6. Inspect and maintain repairs. Explain the purpose of the proposed work: Work being conducted by the Polk County Soil and Water Conservation District Office and Altamont, is being funded through the North Carolina Division of Water Resources grant. The grant is intended to fund projects in storm damaged areas that were not addressed by the federal Emergency Watershed Protection program. The purpose of the project in this specific area is to stabilize the streambanks, restore and widen the riparian corridor along the banks of the Little White Oak Creek within the project area and to reduce the amount of sediment entering the stream by reducing erosion of the streambanks. IV. Prior Project History If jurisdictional determinations andlor 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. Page 12 of 18 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 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 streambank stabilization and riparian buffer widening and enhancement. Precautions will be taken to keep heavy equipment out of the streamchannel except where absolutely necessary to install bank stabilization measures and retrieve debris. Work will be conducted in the dry to the extent practicable. Sediment and erosion control measures, including sand bags, silt fences and reseeding, will be utilized to minimize sedimentation and erosion. 2.Individually list wetland impacts below: Wetlands will not be impacted at this site. 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*** Page 13 of 18 * List each impact separately and identify temporazy impacts. Impacts include, but are not limited to: mechanized cleazing, grading, fill, excavation, flooding, ditching/drainage, etc. For dams, separately list impacts due to both structure and flooding. ** 100-Yeaz floodplains aze identified through the Federal Emergency Management Agency's (FEMA) Flood Insurance Rate Maps (FIRM), or FEMA-approved local floodplain maps. Maps aze available through the FEMA Map Service Center at 1-800-358-9616, or online at http://www.fema.gov. *** List a wetland type that best describes wetland to be impacted (e.g., freshwater/saltwater mazsh, 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: N/A 3.Individually list all intermittent and perennial stream impacts below: Stream Impact Length of Stream Average Width of Stream Perennial or Site Number (see Type of Impact* Impact Name** Before Impact Intermittent? Figure 1) (linear feet) (ft) Little White Oak Streambank stabilization Little White LWC = 22 ft @ Creek / Williams and riparian buffer 1,089 Oak Creek & bkf, Trib = ~ 4 ft Perennial Property project restoration Tributary @bkf Little White Oak Riparian Vegetation Little White LWC - 22 ft @ nnial P Creek / Williams Inhancement and Exotic 2,022 Oak Creek bkf ere Property project Invasive Plant Removal * List each impact separately and identify temporary impacts. Impacts include, but are not limited to: culverts and associated rip-rap, dams (sepazately 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 lineaz 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 aze available through the USGS at 1-800-358-9616, or online at www.us~s.eov. Several Internet sites also allow direct download and printing of USGS maps (e.g., www.topozone.com, www.mapyuest.com, etc.). Cumulative impacts (linear distance in feet) to all streams on site: Approximately 1, 089 linear feet 4.Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic Ocean and any other water of the U.S.) below: There will not be impacts to open waters. Open Water Impact Site Number (indicate on ma) * Type of Impact Area of Impact (acres) Name of Waterbody (if applicable) Type of Waterbody lake, pond, estuary, sound, ba ,ocean, etc.) Page 14 of 18 • List each impact separately and identify temporary impacts. Impacts include, but are not limited to: fill, excavation, dredging, flooding, drainage, bulkheads, etc. S.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.): N/A Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond, local stormwater requirement, etc.): N/A Size of watershed draining to pond: N/A Expected pond surface area: N/A 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. On behalf of the Polk County Soil and Water Conservation District, Altamont will provide contractors engaged in the implementation of this work both written and verbal instructions of all impact avoidance statements provided below. All heavy equipment will be kept out of the stream channel during streambank stabilization work and debris removal except where absolutely necessary to complete worl~ Disturbance of the channel bottom, streambanks and equipment access areas shall be held to the minimum necessary to allow for implementation of bank stabilization work. Temporary grass cover shall be planted on all bare soil within S days of ground disturbing activities. Straw mulch and tall fescue grass will not be used in riparian areas. Herbaceous, woody shrub and tree vegetation will be installed on the streambank upon completion of bank stabilization work. Altamont will provide a site manager to routinely inspect and supervise contractor work to help ensure impact avoidance instructions are being followed. 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 1501inear feet of total impacts to perennial streams. Page 15 of 18 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/strm~ide.html. 1.Provide a brief description of the proposed mitigation plan. The description should provide as much information as possible, including, but not limited to: site location (attach directions and/or map, if offsite), affected stream and river basin, type and amount (acreage/linear feet) of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view, preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a description of the current site conditions and proposed method of construction. Please attach a separate sheet if more space is needed. N/A 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/wrp/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): N/A Amount of buffer mitigation requested (square feet): N/A Amount of Riparian wetland mitigation requested (acres): N/A Amount ofNon-riparian wetland mitigation requested (acres): N/A Amount of Coastal wetland mitigation requested (acres): N/A IX. Environmental Documentation (required by DWQ) Page 16 of 18 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 (Meuse), 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 (s uare feet) Multiplier Required Miti ation 1 3 2 1.5 Total * Zone 1 extends out 30 feet perpendicular from near bank of channel; Zone 2 extends an additiona120 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. Page 17 of 18 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. Impervious acreage will not change at the project site, and other than Martin Walker Road, which is adjacent to the project site and is asphalt, impervious surfaces do not exist at the site. 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 through maintenance, at all times, of suitable channel capacity for expected jlow 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. Wastewater will not be generated as part of this project. 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 anafter-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 work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and Threate~~ Species, accessibility problems, or other issues outside of the applicant's control). Applicant/Agen 's Signature Date (Agent's signature is va d only if an authorization letter from the applicant is provided.) Page 18 of 18 07 •0586 ACCESS AGREEMENT This Access Agreement is made between Polk County Soil and Water Conservation District Supervisor Board (SWCD) and: _ following elements: -Streambank Stabilization -Debris Removal SWCD and the Property Owner agree: -Native plant Re-vegatation -Exotic/Invasive plant removal 1. Property owner. grants permission to SWCD and its contractors and agents to enter upon their land for the purpose of assessing and repairing the flood damage caused by Hurricanes Frances and Ivan. Additionally, this agreement includes the right of ingress and egress on the land for the purpose of maintaining the emergency works for the period of one year from the date of completion. 2. Property owner grants permission to SWCD and its contractors and agent to conduct stream stabilization measures, which may include debris removal, stream bank stabilization using rocks, wood, and/or, mulching and seeding, and/or channel relocation. 3. SWCD agrees to comply with local, state, and federal laws applicable to the work, and further agrees to exercise due care and caution in the performance of all work on the Property. 4. This Agreement constitutes the entire understanding between the parties. All prior agreements or understandings, whether oral or written, are superseded. This Agreement may be amended only by a written document duly executed by the parties. 5. The proposed measures are intended to repair flood damage to the stream and to return affected areas to pre-flood conditions. Repair and/or improvements to structures are not part of this project. Damaged bridges, driveways, and eroded fields are not addressed by measures. SWCD and its contractors will strive to minimize impacts to adjacent properties. However, some impact may be unavoidable. The Property owner releases SWCD and its contractors from liability for any damage incurred as result of this work. 6. This agreement does not provide confirmation that the subject site is eligible for Emergency Funds, nor does it encumber funds for any repair work at this site. 7. Property owner agrees not to remove or modify construction repairs, including vegetation, for one year from the date of completion. The SWCD is requesting access to the property for the purpose of assessing and repairing damage to the streambank, stream channel, and floodplain that was caused by hurricanes Frances and Ivan and more recent storms. The repair work will include some or all of the 8. SWCD will discuss the draft design with the Property Owner prior to submittal for permitting. 9. Property Owner agrees to reimburse SWCD for all costs associated with the design if the property owner decides to terminate this agreement after work has begun. 10. The Polk County Soil and Water conservation District and Polk County property owners hereby authorize Altamont Environmental Inc. (Agent/Consultant) to sign and execute all necessary permits and coordinate communications with the appropriate regulatory agencies. Polk County Soil and Water Conservation District By: ~~t~ ~7 ~.r r ; yl • ~S r r r~` Date: /~,~G%. ~?~ SWCD or Represen7ative By: ~,_ . ~/ Date: f I -2` - ~= ~: Property Owner By: „~ ~/ -~~~ Date: //_ .~ ~ `~ r 1 AK ~ , f„ ~ a,•.. ~" ~ ~DZ~•• \, s ,~. ', ,. ~_} - s , yy+~ L ~, ~~ ~. I . ~f tt c ~~rJr ~. _ , < i ` C ^-~ { ~ ~ `\ ~ ~ , Jr... - ~ ~ d '' '~ .mss 1,~~=~ ~~ ,-~ t~ } ~ ~ ' ~ ~; .: ~~~"` s ~ ~ ~_ ; \ «~ -,_ ~> > ( ( y` \ ~. 9 ~ ~~ ~,~ I {\779 _ _ c ___...•y. ~ _ _ ~` ~~ ~ t ~ ~ ;,, p `` ~' ;~~ ~, e ~,~ fi;l ~~, _ ~ / ~~ v _7 ~; r ~ ~ ~ j i ~ 1^ ~~ .•> ., 4 r ~~~ „ t • `~` ~ .. --J ~ .47. .... k,~ _ ._. ._ .. ~ _.._. e \J ~~l ..4ckwn ~ .: -. I .3 -. ~~~.~- ~ `~ _x ~. ~ ~~. ~ v o` ~ . r t , -° `~% ".. ~, ~. 14 e+t} ~L U _ ~ v G ,: L • .~ a Z ~ ~ • I ~ ,~ .~ - ~. ,~-• ,. - ~1 <, • " _' , • ~ ~ ,a ,, AP~ft~OX1 rV1AT~, _ ~ j ~ q , ~~ (.~ ~ \ ~ -. \ ~~ i ~~,;' ~,~~ SITE L4-~~~FI~IV~ ~~\~ ~ M,II~,R ~~ , ,~ • ._ , j } V I ~ r ,..r . ~ ~, . ° i - Suutk ! ,p.. 1 f1 < A "~ ~ i 1' -'~ Wb(te Oek Mri~ ats . ~) ~ a -~~ ' ''. w i /` I ~ ~_ ~ i J I ~ ~ - ~ I ~--` .. v ~ {~ ~ ~~ ~i \ wiw ,~, r ,~ . S ~ ~ "I` ' ~ ~ ~ ! i y ..~ ~ , ~ , , _/ ~ : is - 1` ~ C , `,~ I v ~ i l ~ ~--.. ~ -~, Whoa Wit ~~ ~ ~ ~~.. ~ ~:.. ,. ~ - ~ 4 ~ i . l ... f.,~\ i ~"\.,y . _ .....~ .! y " i ~ ~' ~•~ o Mtn i ! ' 1 ~ J ~ '~~ ~ ~ ~ ~ x M u ~ ~.,'~ ~ ~~(' ,. ,. ~., ~~,''~~ ~ /~ - ~ ,~ ~ 1 ~ v_' L~ c =~ ~ r. ~, ~. 4 ~ ~ l , ~~ I ~ rr ( .4.., ,aiet e ., ~~, l __ t ~ \1 ~i -_ ~ - °~ --, .. _ , > ~ ~. _. SpURCE: USGS MILL SPRING QUADRANGLE ~ u / \ ~ ~ °° ~ ~ '~ ') ~• ... ~. r '• ~ : ~ 1 124,000 SCALE, 1982, REVISED 1990 ' • ~ ° ~ VICINITY MAP FIGURE ENGINEERING & H Y D R O G E O L O G Y 50 COLLEGE STREET, A$HF.VILLE, NC 28801 TEL.828281.3350 FnC828281.3s51 DWR-04-LITTLE WHITE OAK CREEK/ www. altamontenviromnental.com WILLIAMS PROPERTY DRAWN BY: JOEL LENK SCALE (FEET) POLK COUNTY, NORTH CAROLINA PROJECT MANAGER: STU RYMAN CLIENT: PCSWCD 1500 0 1500 3000 DATE: 02-17-07 P \PDLtt SWCD NRCS\PDLrc PRWECTS 02-OB\%RLEDGE SITE-DWR-03\F iGLFE~\FIGLREI,DWG 07'586 ~0 m N 0 0 O i"~ d U 0 J O i-' U ••a~, Vl I 'N'^ VI Q i U U1 m d E d Q d -F' U1 N N L a a, ~` d^ NQ L ~ Q ~1-' ~ v N O) d d A i. ^ v~ +~ ~, 6 3 a _~_ 4' X 00 N L O) Q. ~ a wa 0 0 N 0 o O a U L P 0 iti 3 O 1i- a, o i +, d L +~ ~' O. j~~0 i L a D. L N o~~ i .? O Q L ~ ~o~ d o ~ L 3 °~ u ~~ o S +_~ ~ UI 3 ~ O o T~ _~_ ~ L ~ 3 U +' +' O ~+'Y N d 0 d~ u3 °' a, v- a +~ o d +,u>=~ U O d :}, N ~ i ~ O L+' a L d ~ O. ~ 3 N ~~~5 d d ~ O U_ ~ L L ~ Q. ~ X003 • as o ~" N M N O Z Q1 d 0 0 N 0 0 0 0 rn ~,c~ ~ L I~ d + ~+'('~ us ~ ~ 'L O H- +' ~~~-' p O (n 0 d ~ i'' p~ d ~~ a~ o, rn d E d Q 0 0 U1 u O1 v +~ d U /~ ^~ W DJ 0 0 (U I I S U .--~ 0 d U O J O +' u I to 0 U N U i D1 4- ~ ~ 0 .... .................. ..I ........+ I ~ (lJ d I U I i~ O i i I .,:0 ........... . d.. .J .. ..................~ .........;+ ~ i M d I Q _~ I ----' I I U U i o O ........... ~.. ...:.., ..~..; ...............;.. ....... \D I I N ~ U1 I o N o~ ~ ~ : 4- O i '-' ~ ~ ~ ~ ~ o ~ ~ o CU . ....... ... o ° ~ I: I . '~ I o I ............ ......... ....... .............f ..... ..........;+ I I (U (LJ O O ..: ......:.. I I o U I o o ~ ;i ..... ........ ~ ~ ~ I (l.l U~ i a, 'I o d p ~ ~ d _ ........ ......... ......... .......~......... ...........:+ 00 ~ +, o o,~ ~ 1 ^' a ~ J / / Q1 ~ (~~~ W _ !~~ O .V ~~I \ ~ O -/ ~ t O o o ;°Q ~ ~ o d _ CU ~ o ~ ' -I-> ~ : ~~ I O ~ ~~ i ..,..~.,.. ~... .. ..... .. .... U i ~ ~ . ;.......; .. n 1 \ I ~ -- ~ I + d _- I o ~ r ~ o '-~ `: i ~ i..,.~.... ....i ...... ........ i. ............. o _ .....,.. ~ ~ ~ O -- ~ ~ --~ ~ d ~ d / -~-' I ~ U d -- (n ~ ........ ...! o _, ..~ ... ......... ........ ! oo J ~ d U I (U ~ -I-' QJ I / ' .--. N i U I _ ~ ~ ~ ~ d I O O (~- I = v _ '~ I I : o o ~ U ....3 .... ....:..... .....1... :............,:.... ..........., .~ .... M QJ ~ ~ } ~ ~ I O d .... .. , °o N ~ ~ I o (__) ~: I ~ U ~ I ~ o QJ ~....... ....!. _ i .......... ...: p i d I ': ~' d `~ ° o °o r' m ~ U I > --, --, ~ J 1 V 0.~ Q/ W o O ~ ~ I Q1 Q1 : U I U IQ1 i ~ ~ S o Q1 i I I ..' ... ......... i l-' ........... ............ o Q~ Ul i cu U- O ~ ~ ~ ~ 1 i ...............i... ............i p ti O /'~ n~ O I I S U _~ .-a v n -~-~ UJ Q1 0 (U I I S u .--+ v w U ~N LL ~ Z ~ O w ~ ~ Q ~ N_ ~ J Q ~ Q ~a~ ~ J ~ _Z ~~m ~ ~ O Q N w t_I__ ~~ ~~ .~ ~_ N ~n z M O U W N ~,]' ~ ~ _ ~ N {{yy 00 T+ U O w ~ ~o~ ~, , ~~ N ry 00~ - W ~ C ~ r] O Q z_ J O Q U S 0 Z z 0 U J O z O N Q w J Q U Z Q H 3 } ~ ~ z w aQu aQJ~ moo m~~-~ zw~"' 3~Zw ~ ~ J Q o~uo Z 0 u N wl F a 0 O ~ ~ O d +~ o, d O W ~ N O) ~ +' Oi ~ L ~ ~ W d d +' Q +, d a, ~ w v'a ~ o d ~ J i J~ J d ~ W a 3 to 3 'a N O~ O~ O d d +' L~ ~ tZ ~ l.7 (n Q' U I i ~ is I I ~ ii: i I ~ '! I , ~ ;, i I ~ ii ;! i I ~ ~ ~~~ o ~ ~ ~ ~~aa~~ suo~~bna» pawnssd 12" - 18" Step 1 -Prepare Fascine Bundles: Cigar-shaped Bundles Of Live, Rootable Brush And Branches With Butts Alternating, 6 To 8-inch Diameters, Tied 12 To 18 Inches On Center Backfill 2/3 Fascine \ Diameter \\ \ ~ \ \ Step 2 - Dig Trench (2/3 Fascine Step 3 -Place Bundles In Trench. Diameter In Depth) Backfill And Tamp, Leave Top Exposed 3" Above Bundle \ ~\ \ Step 4 - Cover Slope With Matting, Step 5 -Add Stakes Below Bundles If Needed, Stake On 2 - 4' Cuttings. Consff action Note: Installation Begins At The Bottom ~ ~ ~ ~ 5 8 6 Of The Slope And Proceeds Upslope Following Step 1 Through Step 5 ~Note~ Adapted From Fascines may be totally Maryland's Waterway struction Guidelines o n buried NoT To scALE • ' '' FASCINE ILLUSTRATION N I R I H Y R Y 50 COLLEGE STREET, A$HEVn.LE, Nc 2seo1 DWR-04-/ TEL.828.281.3350 FAC.828.281.3351 www.altamon[envirownental.com WILLIAMS PROPERTY NORTH CAROLINA POLK COUNTY, DRAWN BY: JOEL LENK PROJECT MANAGER: STU RYMAN SOURCE: THE VIRGINIA STREAM RESTORATION 8 STABILIZATION OEST MANAGEMENT 2004 E CLIENT: POLK CO. SWCD DATE: 3/27/07 PRACTICES GUID . P:\POLK SWCD NRCS \POLK DWR PROJECTS 02-08 \ARLEDGE SITE-DWR-03 \F IGURES \FGGINE FIG.DWG Structure spans 1/2 to 2J3 of stream width. ~l y JI W PLAN Notes: -Rocks in vane are not spaced. -Rocks in "J" section are spaced 1/2 rock width. Flow -~ ~~ \\~ ~ Channel.-\\~~ Sub-Pavement %!- \~\~= Slope and Vegetate Banks Banktull ~ Bench ~~s Legend 'Beds Header Rock ~~ .Tree ~ /~- ' ` i Footer Rock ~ Vegetation Inner Berm PROFILE CROSS-SECTION 0 7 0 5 8 6 NOT TO SCALE N I N R t N H Y D R O G E O l O G Y 50 COLLEGE STREET, ASI-IEVII.LE, NC 28801 TEL.828.281.3350 FAC.828.281.3351 www. altam ontenv uonmental. com DRAWN BY: JOEL LENK SOURCE: NORTH CAROLINA PROJECT MANAGER: STU RYMAN sTREAN RESTORAnoN CLIENT: PCSWCD INSTITUTE DATE: 3/27/07 ROCK J-HOOK ILLUSTRATION DWR-04-/ WILLIAMS PROPERTY POLK COUNTY, NORTH CAROLINA P: \PaLM SWCD NRCS\POLN DWR PROJECTS 02-OB\ARLEOGE SITE-DWR-03\FIGURES\STRUCTLRES ILLISTRPTIONS.GWG Banktull Stage ~ /V FloVV ~ 4 - 15% -toner Benn C-`~) Channel = =~ ~~~~~~~~~ ~~~~~~~i ~~_~~ ~~~ PROFILE Note: Use of geotextile material on upstream side of logs is strongly recommended Legend ~ y~ Header Rods ~ Header Log Footer ~~/ Vegetaifon ~ Lop Slope and Vegetate Banks Bankfull FLOW v7•o~as NOT TO SCALE ~ ~~ E N G I N ERIN & H Y D R O G E O G Y 50 COLLEGE STREET, ASHEVII.LE, NC 28801 TEL.828.281.3350 FAC.828.281.3351 www. altamontenvuonmental.com DRAWN BY: JOEL LENK PROJECT MANAGER: STU RYMAN CLIENT: PCSWCD DATE: 3/27/07 LOG VANE ILLUSTRATION DWR-04-/ WILLIAMS PROPERTY POLK COUNTY, NORTH CAROLINA SOURCE: NORTH CAROLINA STREAM RESTORATION INSTITUTE p~ \pOLM $WCD NRCS\PaJC DWR PROJECTS 02-OB\ARLEOGE SITE-DWR-03\FIGURES\STRUCTLRE$ ILLISIRATIGN$.DWG CROSS-SECTION Grade Streambank to a Stable Slope .-- --- i / ~~ ~li~' Qcf Elevation I/~jr~~ ~-Bracing Boulder ~~\~ ~/~ -_, Stream Bed Invert Root Wads Oriented Perpendicular To Flow Direction Construction Note: A Brace Log Can Be Us For Additional Stability And Should Be Pinned Adjacent Rootwads rt SEC Log Extends To Max. Scour Depth PLAN Stable Cut Slope Extend Bench 1-2 Feet Past Footer Log Bracing Boulders 0 5 8 6 Section & Plan Views Adapted Nor To scALE From Rosgen (19991 • N G I N, RING H Y R o 0 o a Y ROOTWAD ILLUSTRATION - 50 COLLEGE STREET, ASHEVII-i.E, NC 28801 TEL.828.281.3350 FAC.828.281.3351 DWR-04-/ WILLIAMS PROPERTY www.altamontenvvonmental.com POLK COUNTY, NORTH CAROLINA DRAWN BY: JOEL LENK PROJECT MANAGER: STU RYMAN souRCE: rrlE vIRGINIA srREAM RESroRAnoN & STABILIZATION BEST MANAGEMENT CLIENT: POLK CO. SWCD PRACrlces GUIDE: zooA FILE PATH. P~.\Parc SWCD NRCS \Pan DWR FRaJECTS OZ-OB \WILLIAMS SitE-DWR-OL \Ficu+es\ ROOTWPD Fic.owo DATE: 3/27/07 ~-- Top Of Footer Log At Or Below Stream Inve TICN Root Wad and Footer 1 ~ -Rocks in "J" section are spaced y2 rock width. -Use of geotextile upstream of logs is recommended F ' Flow Y~Yz of Bottom Width G~ / ,, ,~ Log ~ Diameter 14"-36" PLAN " For logs <24' diameter, cable 3 logs (10"-12") on ends using Yz" cable. Bottom two logs should be below the ~ stream bed. slope and Vegetate Banks 07.0556 NOT TO SCALE _, ~ _ ~1--~/ RZIl-1u I ~1-~ r ~ III ~.L•~ E N G I N R I N G H Y D R O G E O O G Y 50 COLLEGE STREET, ASHEVILLE, NC 28801 TEL.828.281.3350 FAC.828.281.3351 www. altamontenvironmental. com DRAWN BY: JOEL LENK SOURCE: NORTH CAROLINA PROJECT MANAGER: STU RYMAN STREAM RESTORATION CLIENT: PCSWCD INSTITUTE DATE: 3/27/07 LOG J-HOOK ILLUSTRATION DWR-04-/ WILLIAMS PROPERTY POLK COUNTY, NORTH CAROLINA P'. \PCLN SWCD NRCS\POLn DWR PROJECTS 02-OB\CRLEGGE SITE-DWR-03\FIGURE$\STRUCTURES ILLISTRATIONG.OWG PROFILE CROSS-SECTION Structure spans 112 to ?J3 of stream width. Note: f Flow -Rocks in vane are not I spaced. ~ r rrr~ ~. r~~rr~~ ,, r 1 ''' r'r',r ,~ i r~r~ ~ rr ~ ~ / r irlll I~I~i PLAN ~~~, Bankfull Stage F Slope and Vegetate Banks ~ Bankfuli ~ Bench \\ _' -- - -\\~- ~~_ Legend Bed ~ Elevatk Bader Rods ,~c~~'~ ~ Vegetation ~`-T Footer Rods PROFILE CROSS-SECTION ~~ ~ o5~s NOT TO SCALE N G I N RING H Y O R O G O G Y 50 COLLEGE STREET, ASHEVILLE, NC 28801 TEL.828.281.3350 FAC.828.281.3351 www. altamontenvironmental. com DRAWN BY: JOEL LENK SOURCE: NORTH CAROLINA PROJECT MANAGER: STU RYMAN STREAM RESTORATION CLIENT: PCSWCD 1NSnTUrE DATE: 3/27/07 SINGLE ROCK VANE ILLUSTRATION DWR-04-/ WILLIAMS PROPERTY POLK COUNTY, NORTH CAROLINA P: \POLn $WCD NRCS\POtx DWR PROJECTS 02-OB\ARLE~GE SITE-DWR-03\FIGURES\$TRUCTURES LLISTRLTICNS.~WG PHOTOGRAPHS & DESCRIPTIONS DWR PROJECT 04- LITTLE WHITE OAK CREEK AND UNNAMED TRIBUTARY, WILLIAMS PROPERTY, POLK CONTY, NC View northeast of Little White Oak Creek, the unnamed tributary is in the background. This photo is taken at the upstream end of the project area. The Williams Family owns both sides of the creek from just behind this photo location downstream approximately 400 feet to just beyond the tributary entering from river left in the background. Presently cattle are allowed in the creek throughout this reach. Cattle will be fenced out as part of this project. P:\Polk SWCD NRCS\Polk DWR projects 02-08\Williams Site-DWR-04\Williams Photographs and Descriptions.doc ~, View east-northeast of lower portion of Damaged Area One approximately 200 feet from the confluence with the View east of the Little White Oak Creek, unnamed tributary confluence. Just down stream cattle are presently fenced out of the creek, note the increase in vegetation. From the fence that is just out of view the project will address only damaged streambanks and vegetation on river left. P:\Polk SWCD NRCS\Polk DWR projects 02-08\Williams Site-DWR-04\Williams Photographs and Descriptions.doc . y. View north of unnamed tributary entering Little White Oak Creek from river left. Cattle will be fenced out of the View of cattle fence at downstream extent of Damaged Area 1. This fence marks the location where the Williams Property Line crosses Little White Oak Creek. From this location downstream to the end of the project area, bank stabilization and riparian corridor enhancement will only take place on river left. P:\Polk SWCD NRCS\Polk DWR projects 02-08\Williams Site-DWR-04\Williams Photographs and Descriptions.doc .~ .~ s View of a typical damaged area downstream of cattle fence shown above. Note the active sedimentation taking place and exi s View south-southeast of damaged area near the downstream end of the project area. Damaged areas will be stabilized by installation of a bankfull bench, sloping of the bank above the bench to approximately three horizontal to one vertical and installation of structures as necessary in high stress areas of the bank. Bankfull benches will be tied to existing flood plain benches where possible. Stabilized areas will be planted with a variety of herbaceous plant, shrubs and tree species suitable to the riparian environment. P:\Polk SWCD NRCS\Polk DWR projects 02-08\Williams Site-DWR-04\Williams Photographs and Descriptions.doc