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Home My WebLink About20201716 Ver 1_Meeting Request Review_20201110ID#* 20201716 Version* 1 Regional Office* Asheville Regional Office - (828) 296-4500 Reviewer List* Andrew Moore Pre -Filing Meeting Request submitted 11/10/2020 Contact Name * Contact Email Address* Project Name* Project Owner* Project County* Owner Address: Jake Stokes jake.stokes@usda.gov Wheeler Streambank Stabilization Earmel Wheeler Yancey Street Address 314 Wheeler Farm Drive Address Line 2 aty Burnsville Rbstal / Zip Code 28714 Is this a transportation project?* r Yes r No State / Frovince / Region NC Country us Type(s) of approval sought from the DWR: W 401 Water Quality Certification - F- 401 Water Quality Certification - Regular Express r- Individual Permit r- Modification r- Shoreline Stabilization Does this project have an existing project ID#?* r Yes r No Do you know the name of the staff member you would like to request a meeting with? Andrew Moore Please give a brief project description below. A rock vane and wing deflector / toe boulders are planned to stabilize bank erosion adjacent to a hay field. Bank sloping, benching, and woody vegetation establishment will take place as well to insure long term stability. Please give a couple of dates you are available for a meeting. 11 /12/2020 11 /19/2020 Please attach the documentation you would like to have the meeting about. Wheeler Final approved.pdf 4.58MB Wheeler Full Specs approved.pdf 13.24MB pdf only By digitally signing below, I certify that I have read and understood that per the Federal Clean Water Act Section 401 Certification Rule the following statements: • This form completes the requirement of the Pre -Filing Meeting Request in the Clean Water Act Section 401 Certification Rule. • I understand by signing this form that I cannot submit my application until 30 calendar days after this pre -filing meeting request. • I also understand that DWR is not required to respond or grant the meeting request. Your project's thirty -day clock started upon receipt of this application. You will receive notification regarding meeting location and time if a meeting is necessary. You will receive notification when the thirty -day clock has expired, and you can submit an application. Signature Submittal Date 11/10/2020 Reviewer Meeting Request Decision Has a meeting been scheduled?* r' Yes r No Earmel Wheeler Farm River Bank Stabilization Project-Cane River Burnsville Yancy County, North Carolina Specifications, Drawings, and Details NRCS practices to be implemented include: 580- Streambank and Shoreline Protection (Job Class IV @ 13 sq. mi. watershed) 342 – Critical Area Planting / 612 - Tree/Shrub Establishment Approved by: __________________ Date: _________ Checked by: ___________________ Date: _________ 10/2/2020 CONTENTS Location & Watershed Map Narrative Landowner Guidance for Contracting Stream Projects Specifications  Excavation  Streamside Herbaceous Vegetation  Streamside Woody Vegetation  Rock Structure Diagrams Construction Drawings StreamStats Report For Earmel Wheeler Farm Yancy County, North Carolina Basin Characteristics Parameter Code Parameter Description Value Unit BASINPERIM Perimeter of the drainage basin as defined in SIR 2004-5262 74.7 miles BSLDEM30FT Mean basin slope, based on slope percent grid 41.2 percent CSL10_85fm Change in elevation between points 10 and 85 percent of length along main channel to basin divide divided by length between points ft per mi 46.47 feet per mi DRNAREA Area that drains to a point on a stream 106 square miles ELEV Mean Basin Elevation 3680 feet ELEVMAX Maximum basin elevation 6680 feet I24H50Y Maximum 24-hour precipitation that occurs on average once in 50 years 7.04 inches LC01BARE Percentage of area barren land, NLCD 2001 category 31 0.037 percent LC01CRPHAY Percentage of cultivated crops and hay, classes 81 and 82, from NLCD 2001 8.561 percent LC01DEV Percentage of land-use from NLCD 2001 classes 21-24 5.624 percent LC01FOREST Percentage of forest from NLCD 2001 classes 41-43 84.6 percent LC01HERB Percentage of herbaceous upland from NLCD 2001 class 71 0.626 percent LC01IMP Percent imperviousness of basin area 2001 NLCD 0.49 percent LC01SHRUB Percent of area covered by shrubland using 2001 NLCD 0.451 percent LC01WATER Percentage of open water, class 11, from NLCD 2001 0.026 percent LC01WETLND Percentage of wetlands, classes 90 and 95, from NLCD 2001 0.074 percent LC06BARE Percent of area covered by barren rock using 2006 NLCD 0.039 percent LC06DEV Percentage of land-use from NLCD 2006 classes 21-24 5.673 percent LC06FOREST Percentage of forest from NLCD 2006 classes 41-43 84.573 percent LC06GRASS Percent of area covered by grassland/herbaceous using 2006 NLCD 0.642 percent LC06IMP Percentage of impervious area determined from NLCD 2006 impervious dataset 0.53 percent LC06PLANT Percent of area in cultivation using 2006 NLCD 8.529 percent Region ID:NC Workspace ID:NC20200110122542164000 Clicked Point (Latitude, Longitude):35.93184, -82.38961 Time:2020-01-10 07:25:59 -0500 Page 2 of 4StreamStats 1/10/2020https://streamstats.usgs.gov/ss/ USDA is an equal opportunity provider and employer. Earmel Wheeler Farm Yancy County, NC Cane River NRCS is assisting Mr. Earmel Wheeler with bank erosion issues where his pastureland has an approximately 1650’ border with the East bank of the Cane River. The watershed at this site is 75 square miles with approximately 95% of the watershed is forested. The East river bank on the Wheeler farm is actively eroding, leading to instabilities that will result in loss of pasture to the river. The main cause of this erosion is a slightly over widened condition of the river at this point. Additionally, a shift in the thalwag from centerline of the river to the East bank and then crosses back to the West bank causing minor aggradation on the East bank leading to higher stress on the bank owned by Mr. Wheeler. Steep, high banks and a lack of widespread woody vegetation also contribute to these instabilities. The combination of the width of the river and having such a relatively short project length prohibit full scale restoration on this project both physically and fiscally. Therefore, a bankfull bench will be excavated on the East bank and then sloped into the pasture above the bench. This excavated bench will help decrease the shear stress and velocity on this bank of the Cane River. We also propose a wing‐ deflector structure on the area of active sloughing to bring the river in this section to a bankfull width closer to a width of a nearby stable section of the river. A j‐hook structure should also be installed up stream approximately 400’ to help relieve the stress from this eroding bank by helping shift the flow towards the center of the channel. All disturbed areas will be covered in jute erosion control matting and herbaceous and woody vegetation will be established along these banks and benches. Contact Jake Stokes, Area 1 Engineer, with questions at 828‐456‐6341, 828‐506‐2253, or jake.stokes@nc.usda.gov. Landowner Guidance for Contracting Stream Projects Certain issues can arise when contracting a stream stabilization project that normally do not arise with more common construction contracts such as building construction or earth moving projects. With most common projects, there is a high degree of certainty that the project will be installed exactly as shown on the drawings and with the quantity of materials estimated. This means that contractors can bid on the job with a fixed dollar amount and should not be surprised by unforeseen changes, difficulties, or additional materials required to complete the job properly. If a contract awarded at a fixed amount encounters unforeseen issues during construction, problems with the contractor can occur since these issues can cost the contractor large amounts of money which will lower their profit margin. While engineering plans are carefully prepared to show the expected extent of work, stream stabilization projects are sometimes not installed exactly as shown on the plans. Constructing stream projects is unique in that work is being done on a dynamic system where previously unknown complications are commonly found only after construction has begun. It is not uncommon during construction for the construction supervisor (NRCS or SWCD personnel) to determine the need to deviate slightly from the engineering plans. Other factors can impact the time it takes or the amount of materials required to complete a project. A few examples follow: • In -stream structure installation has a downstream effect causing a need for an additional structure not shown in the plans, or making it possible to omit a downstream structure • Availability of suitable construction materials may necessitate a change of plans • Equipment operator inexperience or equipment inadequacies can greatly increase the time required to finish a project • Stream bed properties such as previously unidentified bedrock seams or deep unconsolidated stream bed material may decrease or increase required materials • Large storm events and high flows that happen during construction can have negative effects that must be repaired All deviations from the plans affect the installation cost of the project making it either more or less expensive. Material quantities, such as boulders for in -stream structures, are very difficult to estimate accurately. The relative time required to complete a project varies greatly from project to project. These factors make it difficult for both the contractor and the engineer to predict the cost of installation. Also, there are only a limited number of contractors that have experience with multiple stream projects so many may underbid a project when bidding total cost. When the cost of installation turns out to be more than a contractor expects, problems can occur especially if the contractor is being paid a fixed amount for project completion. For stream stabilization projects several hundred feet or more long and requiring multiple in -stream structures, it is recommended that the landowner contract the job with provisions to accommodate payment for changes to the plans or unexpected material expenses. It can be problematic to try to work out costs for these issues once construction is underway. There are various ways to set up your contract to avoid problems during construction. Work with your contractor to come to good terms on how to set up the contract so that unexpected issues can be easily resolved. And contact your NRCS or SWCD representative for advice. 4.j NRCS CONSTRUCTION SPECIFICATION 21. EXCAVATION 1. SCOPE The work shall consist of the excavation required by the drawings and specifications and disposal of the excavated materials. 2. CLASSIFICATION Excavation will be classified as common excavation or rock excavation in accordance with the following definitions or will be designated as unclassified. Common excavation shall be defined as the excavation of all materials that can be excavated, transported, and unloaded by the use of heavy ripping equipment and wheel tractor -scrapers with pusher tractors or that can be excavated and dumped into place or loaded onto hauling equipment by means of excavators having a rated capacity of one cubic yard or larger and equipped with attachments (such as shovel, bucket, backhoe, dragline or clam shell) appropriate to the material type, character, and nature of the materials. Rock excavation shall be defined as the excavation of all hard, compacted or cemented materials that requires blasting or the use of ripping and excavating equipment larger than defined for common excavation. The excavation and removal of isolated boulders or rock fragments larger than one (1) cubic yard encountered in materials otherwise conforming to the definition of common excavation shall be classified as rock excavation. The presence of isolated boulders or rock fragments larger than one (1) cubic yard will not in itself be sufficient cause to change the classification of the surrounding material. For the purpose of these classifications, the following definitions shall apply: Heavy ripping equipment shall be defined as a rear - mounted, heavy duty, single -tooth, ripping attachment mounted on a track type tractor having a power rating of at least 250 flywheel horsepower unless otherwise specified in Section 10. Wheel tractor -scraper shall be defined as a self -loading (not elevating) and unloading scraper having a struck bowl capacity of at least twelve (12) cubic yards. NRCS-NEH-20 1of4 10/98 3 M 5 IN Pusher tractor shall be defined as a track type tractor having a power rating of at least 250 flywheel horsepower equipped with appropriate attachments. UNCLASSIFIED EXCAVATION Excavation designated as "Unclassified Excavation" shall include all materials encountered regardless of their nature or the manner in which they are removed. When excavation is unclassified, none of the definitions or classifications stated in Section 2, CLASSIFICATION, shall apply. BLASTING The transportation, handling, storage, and use of dynamite and other explosives shall be directed and supervised by person(s) of proven experience and ability who are authorized and qualified to conduct blasting operations. Blasting shall be done in such a manner as to prevent damage to the work or unnecessary fracturing of the foundation and shall conform to any special requirements in Section 10 of this specification. When specified in Section 10, the Contractor shall furnish the Engineer in writing, a blasting plan prior to blasting operations. USE OF EXCAVATED MATERIALS Method 1 To the extent they are needed, all suitable materials from the specified excavations shall be used in the construction of required permanent earthfill or rockfill. The suitability of materials for specific purposes will be determined by the Engineer. The Contractor shall not waste or otherwise dispose of suitable excavated materials. Method 2 Suitable materials from the specified excavations may be used in the construction of required earthfill or rockfill. The suitability of materials for specific purposes will be determined by the Engineer. DISPOSAL OF WASTE MATERIALS Method 1 All surplus or unsuitable excavated materials will be designated as waste and shall be disposed of at the locations shown on the drawings. Method 2 All surplus or unsuitable excavated materials will be designated as waste and shall be disposed of by the Contractor at sites of his own choosing away from the site of the work in an environmental acceptable manner and that does not violate local rules and regulations. NRCS-NEH-20 2of4 10/98 7. EXCAVATION LIMITS M Excavations shall comply with OSHA Construction Industry Standards (29CFR Part 1926) Subpart P, Excavations, Trenching, and Shoring. All excavations shall be completed and maintained in a safe and stable condition throughout the total construction phase. Structure and trench excavations shall be completed to the specified elevations and to the length and width required to safely install, adjust, and remove any forms, bracing, or supports necessary for the installation of the work. Excavations outside of the lines and limits shown on the drawings or specified herein required to meet safety requirements shall be the responsibility of the Contractor in constructing and maintaining a safe and stable excavation. BORROW EXCAVATION When the quantities of suitable materials obtained from specified excavations are insufficient to construct the specified earthfills and earth backfills, additional materials shall be obtained from the designated borrow areas. The extent and depth of borrow pits within the limits of the designated borrow areas shall be as specified in Section 10 or as approved by the Engineer. Borrow pits shall be excavated and finally dressed to blend with the existing topography and sloped to prevent ponding and to provide drainage. OVER -EXCAVATION Excavation in rock beyond the specified lines and grades shall be corrected by filling the resulting voids with portland cement concrete made of materials and mix proportions approved by the Engineer. Concrete that will be exposed to the atmosphere when construction is completed shall meet the requirements of concrete selected for use under Construction Specification 31, Concrete for Major Structures, or 32, Structure Concrete, as appropriate. Concrete that will be permanently covered shall contain not less than five (5) bags of cement per cubic yard. The concrete shall be placed and cured as specified by the Engineer. Excavation in earth beyond the specified lines and grades shall be corrected by filling the resulting voids with approved compacted earthfill, except that, if the earth is to become the subgrade for riprap, rockfill, sand or gravel bedding, or drainfill, the voids may be filled NRCS-NEH-20 3of4 10/98 with material conforming to the specifications for the riprap, rockfill, bedding or drainfill. Prior to correcting an over -excavation condition, the Contractor shall review the planned corrective action with the Engineer and obtain approval of the corrective measures. 10. ITEMS OF WORK AND CONSTRUCTION DETAILS Items of work to be performed in conformance with this specification and the construction details therefore are: 1. Excavation General a. Topsoil shall be stockpiled and spread in accordance with Construction Specification 426 and in the locations as directed by the engineer. b. CLASSIFICATION is common excavation. c. USE OF MATERIALS shall be method 1. d. DISPOSAL OF WASTE MATERIALS shall be method 1. Waste Disposal areas are not shown on the drawings, Disposal areas will be designated by the engineer. e. All spoil material shall be vegetated and stabilized against erosion and sedimentation immediately after placement. 2. Spoil from bank or bench excavation shall be utilized as fill material to be placed in locations shown on the construction drawings or in locations specified by the Engineer. 3. Excavated cut slopes shall be no steeper than 3:1 unless approved by the Engineer. 4. Sod mats shall be harvested before sloping banks for use on newly excavated banks. NRCS-NEH-20 4of4 10/98 Streamside Herbaceous Vegetation Specifications The work shall consist of preparing the area, furnishing and placing seed, sprigs, sod mats, mulch, fertilizer, inoculate, soil amendments and anchoring mulch in the designated areas as specified; stream banks, access areas and other areas disturbed by construction activities. Seedbed Preparation On sites where equipment can be operated safely the seedbed shall be adequately loosened and smoothed. Disking or cultipacking or both may be necessary. On sites where equipment cannot operate safely, the seedbed shall be prepared by hand scarifying to provide a roughened surface so that seed will stay in place. If seeding is done immediately following construction, seedbed preparation may not be required except on compacted, polished or freshly cut areas. Fertilizing Evenly distribute lime and fertilizer over the area to be seeded. Uniformly mix lime and fertilizer into the top 3 inches of the soil. Where surface materials are predominately gravel and/or cobble, no incorporation is required. Apply lime and fertilizer according to soil test results or at the following rates. Lime 10-10-10 Fertilizer Sod Mats Per 1000 sq. ft. 50-100 lbs. 9-12 lbs. Per Acre 1-2 tons 4-500 lbs. Strip and stockpile mats of existing desirable herbaceous vegetation. Insure that several inches of sod remains attached to the vegetation. The root systems must remain moist while the vegetation is stockpiled. Place the mats on the lower bank slopes and anchor in place. Seeding Temporary Seeding -Use where needed for erosion and pollution control, when permanent vegetation cannot be established due to planting season and where temp orary ground cover is needed to allow native or woody vegetation to become established. Fall, Winter, Spring Seeding Oats Wheat Summer Seeding Sudangrass Browntop Millet Per I 000 sq. ft. 2 lbs. 2 lbs. 1 lb. 1 lb. Per Acre 3 bu. 3 bu. 35-45 lbs. 30-40 lbs. Permanent Seeding -Use in combination with woody plantings on the upslope side of the riparian planting. Spring planting time is ideal for native pere1mial warm season grasses. These grasses should be used when enhancing wildlife habitat is a goal of the riparian planting. Spring planted seed should be treated with a cold wet chill process to maximize germination. Fall plantings should be planted with a lightly sowed cool season annual to hold the soil and do not need the wet chill process. To improve wildlife habitat existing stands of fescue can be killed using an appropriate herbicide and wann season grasses can be no-till planted into the sod. Omit fertilizer when establishing native grasses, fertilizer can be applied the second year to improve the stand. Fa!L Spring Seeding Per I 000 sq. ft. l Per Acre -Native warm season grasses Big, Little or Broomsedge Bluestem Eastern Gamma Grass or Switchgrass Mulching 0.2 lbs. PLS (pure live seed) 0.5 lb. PLS 5 lbs. PLS IO lbs. PLS Mulching should be performed within 48 hours of seeding. Grain straw mulch should be applied on seeded areas at a rate of 3 bales per 1000 square feet or 1.5 tons per acre. Apply mulch uniformly. Anchor mulch with a mulch crimper, asphalt tackifier or appropriate mulch netting. Streamside Woody Vegetation Establishment This work consist of securing and planting permanent woody vegetation using rooted stock, unrooted stock and on site transplants. Care and Handling Planting stock should be stored in a cool moist environment or heeled in. Roots of bareroot stock shall be kept moist during planting operations. Container or potted stock shall be kept moist at all times. The root balls of transplanted stock must be kept moist. Site Preparation Desirable trees and shrubs on the construction site should be dug and stored. On recently graded sites use temporary seedings, anchored mulch or erosion control fabrics to provide surface protection until woody vegetation becomes established. Sod may be killed by non -selective herbicides the year previous to planting stock (follow all federal, state and local regulations in the use of herbicides). When hand planting; scalp an area at least 3 feet in diameter and 2-4 inches deep. Place plant in the center of the scalped area. On sites where equipment cannot be operated safely and there are concerns about potential erosion use a non -selective herbicide to kill vegetation in a 36 inch wide circle or 36 inch wide strip and plant in the center of the killed vegetation. If the site is a row crop site, reasonably free of weeds, plant stock in the stubble without prior preparation. Sites with undesirable brush will need initial treatments to facilitate planting and follow-up treatments to prevent reencroachment. Planting Transplants should be replanted to the same depth they were originally growing. Plant rooted stock in a vertical position with the root collar approximately''/z inch below the soil surface. The planting trench or hole must be deep enough and wide enough to permit roots to spread out and down without J-rooting. Insert dormant cuttings to the depth required to reach adequate soil moisture, leaving 2 to 3 buds above ground. After planting pack soil around each plant firmly to remove air pockets. Plant List Plant Types/ Mature Height Shrubs, less than 10 Feet in height Shrubs and trees from 10 to 25 feet in height Plant to Plant Spacing Plant List # Per Acre #Per 1000 Sq. Ft. 3 to 6 feet *Buttonbush, *#`Bankers' Dwarf Willow 1210-4840 *Elderberry, Highbush Blueberry, 28-110 Hazelnut 6 to 8 feet Alder, Deciduous Holly, Crabapple, 680-1742 Red Chokeberry, *Silky Dogwood, 15-28 *Silky Willow, Spicebush, *#`Streamco' Willow, Serviceberry, Washington Hawthorne, Witch Hazel Trees greater than 25 8 to 12 feet Black Cherry, *Black Willow, Feet in height 302-680 Green Ash, Red Maple, River Birch 7-15 Sycamore, Yellow Poplar, Black Walnut Persimmon NOTES: * = Plants suitable for use as dormant cuttings, space cuttings 1.5-2.5 feet apart, 160- 445 cuttings per 1000 sq. ft. or 6970-19360 cuttings per acre; # = Non-native plants; Plants listed in bold have wildlife value CONSTRUCTION SPECIFICATION INSTREAM STRUCTURES CONSTRUCTED OF ROCK 1) SCOPE This specification covers the installation of Rock Vanes, J-Hooks, and Cross Vanes at locations as shown on the construction plans and as directed by the engineer. 2) PURPOSE • Redirect erosive velocities away from streambanks • Provide aquatic habitat • Cross Vanes may be used for grade control 3) DEFINITIONS ROCK VANE — A deflective structure installed pointing upstream, beginning at bankfull sloping down to the streambed. The angle at which the vane points upstream from the bank shall be 20-30 degrees. The slope of the top surface of the vane will be 5-7 percent. The vane should extend from the bank to approximately 113 of channel width. (See fig. 1) J-HOOK - A rock vane with a hooked portion on the streambed. The hook provides additional habitat. (See fig. 2) May included a sill (See fig. 3) which continues across the stream bed from the hook portion of the structure, perpendicular to the flow and follows the shape and elevation of the stream bed and stream bank up to interberm or as directed by the engineer. CROSS VANE - A rock vane from both sides of the stream with a connecting bar on the streambed. If this structure is used for grade control, the existing streambed elevation may be increased by no more than 10 percent of bankfull, unless a greater increase is provided for in the approved design. (See fig. 4) ENGINEER - The USDA-NRCS and/or SWCD person(s) who have appropriate construction approval authority for Practice Standard 580, Streambank and Shoreline Protection for the specific size and type of structure. STREAMBANK — portions of intermittent or perennial streambanks which are eroding at an accelerated rate due to the effects of stream flow near banks without adequate vegetative cover and supporting riparian area. BANKFULL — The stream flow level at which the stream channel is formed and maintained. The term "bankfull" should not be confused with "the top of the bank". Persons USDA-NRCS page 1 of 6 Rock Structures North Carolina August 1999 who have received training in Natural Stream Channel evaluation shall identify the bankfull elevation. THALWEG - The deepest part of the channel where the highest channel velocities occur. 4) PLANNING CONSIDERATIONS This practice should be applied as a part of a total Natural Stream Channel Restoration design. These structures are not intended to be a total solution to the streambank erosion problem in themselves. They are to be used as a component of a total streambank management plan, which may require a number of associated practices. In some cases modification of the stream dimension, pattern and profile may be required before structures are installed. The use of rock structures without considering the stable dimension, pattern, and profile of the stream will most likely result in failure. 5) PERMITTING No work, which is covered by this specification, shall be performed until the Army Corp of Engineers has issued a Section 404 permit and the Division of Water Quality has issued a Section 401 certification (if required). The final construction plans and specifications must be prepared and approved prior to the beginning of construction. 6) EQUIPMENT • A hydraulic excavator (trackhoe) with a hydraulic "thumb" shall be used to handle and install the rocks • All required safety equipment shall be available during construction. Safety equipment includes but is not limited to hard hats, gloves, and eye and hearing protection. 7) SUPERVISION The engineer must be on -site to supervise and inspect each operation as it is performed. No work, which is covered by this specification, shall be performed in the absence of the engineer except as approved by the engineer. The work shall be conducted as directed by the engineer. The engineer shall be notified a minimum of 24 hours before installation is performed. 8) INSTALLATION The engineer shall place a marker at the point where the last rock of the structure will meet the streambed. This marker shall be set at a point, which represents the planned angle from bankfull and the planned slope of the structure. The engineer should check to see if this point is approximately 1/3 of the total channel width. Holes for footer rocks shall be excavated in the streambed at the location, elevation and orientation as directed by the engineer. USDA-NRCS page 2 of 6 Rock Structures North Carolina August 1999 • A footer rock of the size and shape as directed by the engineer shall be installed in the hole. Multiple footer rocks may be required, at the discretion of the engineer or as provided for in the approved plan. • A structure rock of the size and shape as directed by the engineer shall be installed on top of the footer rock. • Streambed material will be removed as directed by the engineer if it is required to move the thalweg of the stream to the point of the structure. • Streambed material shall be placed on the upstream side of the structure near the bank. • Equipment shall be operated from the streambank whenever possible. • Equipment which appears to be leaking fluids shall be removed to a safe site away from the stream corridor until it is repaired and confirmed that no leaks exist. 9) ASSOCIATED PRACTICES • ROOT WADS and related instream structures planned as an integral component of the natural stream channel restoration design. • CRITICAL AREA SEEDING shall be applied on all disturbed areas. • WOODY VEGETATION shall be established on the sloped bank above bankfull and on top of the bank. • RIPARIAN FOREST BUFFER should be considered. • LIVESTOCK EXCLUSION shall be installed if livestock are pastured in the area. 10) FIGURES Figures attached to this specification illustrate the placement and orientation of the various instream rock structures which may be included in the plan. Figures are as follows: Figure 1 — Rock Vane Figure 2 — J Hook Figure 3 — J Hook with sill Figure 4 — Cross Vane USDA-NRCS page 3 of 6 Rock Structures North Carolina August 1999 Angle (in degrees) .k Vane a View Angle degrees) ok liew Figure 1 (after Rosgen) Figure 2 (after Rosgen) Slope (in percent) Rock Vane Cross Section Slope (in percent) J Hook Cross Section USDA-NRCS page 5 of 6 Rock Structures North Carolina August 1999 Angle (in degrees) 7 Hook with Sill Plan View Figure 3 (after Rosgen) Figure 4 (after Rosgen) Slope (in percent) J Hook with Sill Cross Section Slope (in percent) Cross Vane Cross Section USDA-NRCS page 6 of 6 Rock Structures North Carolina August 1999 CONTENTS:1. Title Sheet & Location Map2. Existing Site Conditions Practice Standard 580, Streambank & Shoreline protectionAPPROVED BY:AS BUILTS CERTIFIED BY:DATE:DATE:Earmel Wheeler FarmYancy County, North Carolina3. Design Plan View4. Profiles & Cross Sections(Not to Scale)Project Location:Lat: 35.930763Long: -82.389524NSEWPractice Standard 584, Channel Bed Stabilization5. Materials Estimate & NotesPractice Standard 342, Critical Area PlantingCane River10/2/2020 Natural ResourcesConservation Service United States Department of AgricultureNSEW Natural ResourcesConservation Service United States Department of AgricultureNSEW Natural ResourcesConservation Service United States Department of Agriculture Natural ResourcesConservation Service United States Department of Agriculture··