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Home My WebLink About20120651 Ver 1_401 Application_20120712oaot d >_ 20120651 Office Use Only Corps action ID no DWQ project no Form Version 13 Dec 10 2008 Page 1 of 11 PCN Form — Version 1 3 December 10 2008 Version Pre - Construction Notification PC Form A Applicant Information 1 Processing J4. TD A Ff M11 1a ) of approval sought from the Corps Corps ® Section 404 Permit El Section 10 PermO 1 b Specify Nationwide Permit (NWP) number 27 or General Permit (GP) number 1 c Has the NWP or GP number been verified by the Corps? ❑ Yes ® No 1d Type(s) of approval sought from the DWQ (check all that apply) ® 401 Water Quality Certification — Regular ❑ Non 404 Jurisdictional General Permit ❑ 401 Water Quality Certification — Express ❑ Riparian Buffer Authorization le Is this notification solely for the record because written approval is not required? For the record only for DWQ 401 Certification ❑ Yes ® No For the record only for Corps Permit ❑ Yes ❑ No If Is payment into a mitigation bank or in lieu fee program proposed for mitigation of impacts? If so attach the acceptance letter from mitigation bank or m lieu fee program El yes ®No 1 g Is the project located in any of NC s twenty coastal counties If yes answer 1 h below ❑ Yes ® No 1h Is the project located within a NC DCM Area of Environmental Concern (AEC)? ❑ Yes ® No 2 Project Information 2a Name of project Tony Jones Stream Restoration Project 2b County Caldwell 2c Nearest municipality / town Lenoir 2d Subdivision name N/A 2e NCDOT only T I P or state project no 3 Owner Information JUL _ 3a Name(s) on Recorded Deed Jones Farm Ferguson -T ut:r4R BK 1276 PG 1154 YR 1999 yyeq BAR OugLln. SlIn 3b Deed Book and Page No 3c Responsible Party (for LLC if applicable) Tony Jones 3d Street address 10614 W NC Highway 268 3e City state zip Boomer NC 28606 9141 3f Telephone no 336 927 9141 3g Fax no 3h Email address Page 1 of 11 PCN Form — Version 1 3 December 10 2008 Version 4 Applicant Information (if different from owner) 4a Applicant is ❑ Agent ❑ Other specify 4b Name 4c Business name (if applicable) 4d Street address 4e City state zip 4f Telephone no 4g Fax no 4h Email address 5 Agent/Consultant Information (if applicable) 5a Name Kevin Clark 5b Business name (if applicable) Caldwell Sod and Water Conservation District 5c Street address 120 Hospital Avenue NE 5d City state zip Lenoir NC 28645 5e Telephone no 828 758 1111 or 828 -439 9727 ext 3 5f Fax no 828 758 7257 5g Email address kevin ciark @nc nacdnet net Page 2 of 11 PCN Form — Version 1 3 December 10 2008 Version B Project Information and Prior Project History 1 Property Identification 1a Property identification no (tax PIN or parcel ID) 2874443302 1b Site coordinates (in decimal degrees) Latitude 36 0481 Longitude 814484 (DD DDDDDD) ( DD DDDDDD) 1c Property size 114 84 acres 2 Surface Waters 2a Name of nearest body of water (stream nver etc) to Yadkin River proposed project 2b Water Quality Classification of nearest receiving water C Tr 2c River basin Yadkin Pee Dee 3 Project Description 3a Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this application The project area is a cattle farm with pasture/hayland on the north side of the stream and meadow/woods /residential on the south side of the stream The streambanks are failing Vertical banks with sparse vegetation continues to erode during storm events Animals currently do not have access to the stream for watering or browsing 3b List the total estimated acreage of all existing wetlands on the property 0 3c List the total estimated linear feet of all existing streams (intermittent and perennial) on the property 11 580 linear feet according to the conservation plan map 3d Explain the purpose of the proposed project The purpose of the project is to stabilize the streambanks and implement a conservation plan to restore woody vegetation along the stream corridor 3e Describe the overall project in detail including the type of equipment to be used The project design was furnished by the Natural Resources Conservation Service Engineer This design will utilize bioengineenng techniques for stream restoration Equipment used for the project will be a hydraulic excavator front end loader backhoe farm tractor and dump truck 4 Jurisdictional Determinations 4a Have jurisdictional wetland or stream determinations by the Corps or State been requested or obtained for this property / ❑ Yes ❑ No ® Unknown project (including all prior phases) in the pasty Comments 4b If the Corps made the junsdictional determination what type ❑ Preliminary ❑ Final of determination was made? 4c If yes who delineated the jurisdictional areas Agency /Consultant Company Name (if known) Other 4d If yes list the dates of the Corps jurisdictional determinations or State determinations and attach documentation 5 Project History 5a Have permits or certifications been requested or obtained for El Yes ED No Unknown this project (including all prior phases) in the past? 5b If yes explain in detail according to help file instructions Page 3 of 11 PCN Form — Version 1 3 December 10 2008 Version 6 Future Project Plans 6a Is this a phased project? ❑Yes ® No 6b If yes explain Page 4 of 11 PCN Form — Version 1 3 December 10 2008 Version C Proposed Impacts Inventory 1 Impacts Summary la Which sections were completed below for your project (check all that apply) ❑ Wetlands ® Streams tributaries ❑ Buffers ❑ Open Waters ❑ Pond Construction 2 Wetland Impacts If there are wetland impacts proposed on the site then complete this question for each wetland area impacted 2a 2b 2c 2d 2e 2f Wetland impact Type of jurisdiction number — Type of impact Type of wetland Forested (Corps 404 10 Area of impact Permanent (P) or (if known) DWQ —non 404 other) (acres) Temporary W1 ❑ PMT ❑ Yes ❑ Corps ❑ No ❑ DWQ W2 ❑ P ❑ T ❑ Yes ❑ Corps ❑ No ❑ DWQ W3 ❑ P ❑ T ❑ Yes ❑ Corps ❑ No ❑ DWQ W4 ❑ P ❑ T ❑ Yes ❑ Corps ❑ No ❑ DWQ W5 ❑ P ❑ T ❑ Yes ❑ Corps ❑ No ❑ DWQ W6 ❑ P ❑ T ❑ Yes ❑ Corps ❑ No ❑ DWQ 2g Total wetland impacts 2h Comments 3 Stream Impacts If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site then complete this question for all stream sites impacted 3a 3b 3c 3d 3e 3f 3g Stream impact Type of impact Stream name Perennial Type of jurisdiction Average Impact number (PER) or (Corps 404 10 stream length Permanent (P) or intermittent DWQ — non -404 width (linear Temporary (T) (INT)? other) (feet) feet) S1 ®P ❑ T Stream bank shaping Yadkin River ® PER ❑ INT ® Corps ® DWQ 72 8 Wbkf 350 S2 ® P ❑ T Stream revetment Yadkin River ® PER ❑ INT ® Corps ® DWQ 72 8 Wbkf 250 S3 ® P ❑ T 1 J hook Rock vane Yadkin River ® PER ❑ INT ® Corps ® DWQ 72 8 Wbkf 100 S4 ❑ P ❑ T ❑ PER ❑ Corps ❑ INT ❑ DWQ S5 ❑ P ❑ T ❑ PER ❑ Corps ❑ INT ❑ DWQ S6 ❑ P ❑ T ❑ PER ❑ Corps ❑ INT ❑ DWQ 3h Total stream and tributary impacts 700 31 Comments Page 5 of 11 PCN Form — Version 1 3 December 10 2008 Version 4 Open Water Impacts If there are proposed impacts to lakes ponds estuaries tributaries sounds the Atlantic Ocean or any other open water of the U S then individually list all open water impacts below 4a 4b 4c 4d 4e Open water Name of waterbody impact number — (if applicable) Type of impact Waterbody type Area of impact (acres) Permanent (P) or Temporary 01 ❑P ❑T 02 ❑P ❑T 03 ❑P ❑T 04 ❑P [IT 4f Total open water impacts 4g Comments 5 Pond or Lake Construction If pond or lake construction proposed then complete the chart below 5a 5b 5c 5d 5e Wetland Impacts (acres) Stream Impacts (feet) Upland Pond ID Proposed use or purpose (acres) number of pond Flooded Filled Excavated Flooded Filled Excavated Flooded P1 P2 5f Total 5g Comments 5h Is a dam high hazard permit required ❑ Yes ❑ No If yes permit ID no 51 Expected pond surface area (acres) 5j Size of pond watershed (acres) 5k Method of construction 6 Buffer Impacts (for DWO) If project will impact a protected riparian buffer then complete the chart below if yes then individually list all buffer impacts below If any impacts require mitigation then you MUST fill out Section D of this form 6a ❑ Neuse ❑ Tar Pamlico ❑ Other Project is in which protected basin? ❑ Catawba ❑ Randleman 6b 6c 6d 6e 6f 6g Buffer impact number — Reason Buffer Zone 1 impact Zone 2 impact Permanent (P) or for Stream name mitigation (square feet) (square feet) Temporary impact required 131 ❑P ❑T El Yes ❑ No 62 ❑ P ❑ T ❑ Yes ❑ No 133 ❑ P ❑ T ❑ Yes ❑ No 6h Total buffer impacts 61 Comments Page 6 of 11 PCN Form — Version 13 December 10 2008 Version D Impact Justification and Mitigation 1 Avoidance and Minimization la Specifically describe measures taken to avoid or minimize the proposed impacts in designing project The work will consist of installing 250 of tree revetment along the steam bank The other work will be bank shaping and the installation of an in stream rock structure Machine work will be performed from the bank or where additional reach is needed a rock platform will be temoranly placed in the stream for the machine to work 1 b Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques All graded areas will be seeded The new streambank profile will be protected by erosion control matting while vegetation is being established Woody plants (livestakes and/or rooted seedlings) will be a vital part of the final stabilization 2 Compensatory Mitigation for Impacts to Waters of the U S or Waters of the State 2a Does the project require Compensatory Mitigation for impacts to Waters of the U S or Waters of the State? ❑ Yes ® No 2b If yes mitigation is required by (check all that apply) ❑ DWQ ❑ Corps 2c If yes which mitigation option will be used for this project? ❑ Mitigation bank ❑ payment to in lieu fee program ❑ Permittee Responsible Mitigation 3 Complete if Using a Mitigation Bank 3a Name of Mitigation Bank 3b Credits Purchased (attach receipt and letter) Type Quantity 3c Comments 4 Complete if Making a Payment to In lieu Fee Program 4a Approval letter from in lieu fee program is attached ❑ Yes 4b Stream mitigation requested linear feet 4c If using stream mitigation stream temperature ❑ warm ❑ cool ❑cold 4d Buffer mitigation requested (DWQ only) square feet 4e Riparian wetland mitigation requested acres 4f Non riparian wetland mitigation requested acres 4g Coastal (tidal) wetland mitigation requested acres 4h Comments 5 Complete if Using a Permittee Responsible Mitigation Plan 5a If using a permittee responsible mitigation plan provide a description of the proposed mitigation plan Page 7 of 11 PCN Form — Version 13 December 10 2008 Version 6 Buffer Mitigation (State Regulated Riparian Buffer Rules) — required by DWQ 6a Will the project result in an impact within a protected riparian buffer that requires buffer mitigation? ❑ Yes ® No 6b If yes then identify the square feet of impact to each zone of the riparian buffer that requires mitigation Calculate the amount of mitigation required Zone 6c Reason for impact 6d Total impact (square feet) Multiplier 6e Required mitigation (square feet) Zone 1 3 (2 for Catawba) Zone 2 1 5 6f Total buffer mitigation required 6g If buffer mitigation is required discuss what type of mitigation is proposed (e g payment to private mitigation bank permittee responsible riparian buffer restoration payment into an approved in lieu fee fund) 6h Comments Page 8 of 11 PCN Form — Version 1 3 December 10 2008 Version E Stormwater Management and Diffuse Flow Plan (required by DWQ) 1 Diffuse Flow Plan la Does the project include or is it adjacent to protected riparian buffers identified ❑ Yes ® No within one of the NC Riparian Buffer Protection Rules? 1 b If yes then is a diffuse flow plan included? if no explain why ❑ Yes El No Comments 2 Stormwater Management Plan 2a What is the overall percent imperviousness of this project? 0% 2b Does this project require a Stormwater Management Plan? ❑ Yes ® No 2c If this project DOES NOT require a Stormwater Management Plan explain why This is on agricultural land 2d if this project DOES require a Stormwater Management Plan then provide a brief narrative description of the plan ❑ Certified Local Government 2e Who will be responsible for the review of the Stormwater Management Plan? ❑ DWQ Stormwater Program ❑ DWQ 401 Unit 3 Certified Local Government Stormwater Review 3a In which local government s jurisdiction is this project? ❑ Phase II 3b Which of the following locally implemented stormwater management programs ❑ NSW ❑ USMP apply (check all that apply) ❑ Water Supply Watershed ❑ Other 3c Has the approved Stormwater Management Plan with proof of approval been ❑ Yes ❑ No attached? 4 DWQ Stormwater Program Review ❑ Coastal counties 4a Which of the following state implemented stormwater management programs apply ❑ HQW ❑ ORW (check all that apply) ❑ Session Law 2006 246 ❑ Other 4b Has the approved Stormwater Management Plan with proof of approval been attached? ❑ Yes ❑ No 5 DWQ 401 Unit Stormwater Review 5a Does the Stormwater Management Plan meet the appropriate requirements? ❑ Yes ❑ No 5b Have all of the 401 Unit submittal requirements been met? ❑ Yes ❑ No Page 9 of 11 PCN Form — Version 1 3 December 10 2008 Version F Supplementary Information 1 Environmental Documentation (DWQ Requirement) la Does the project involve an expenditure of public (federal /state/local) funds or the ® Yes ❑ No use of public (federal /state) land? lb If you answered yes to the above does the project require preparation of an environmental document pursuant to the requirements of the National or State ❑ Yes ® No (North Carolina) Environmental Policy Act (NEPA/SEPA)? 1 c If you answered yes to the above has the document review been finalized by the State Clearing House? (If so attach a copy of the NEPA or SEPA final approval letter ) ❑ Yes ❑ No Comments 2 Violations (DWQ Requirement) 2a is the site in violation of DWQ Wetland Rules (15A NCAC 2H 0500) Isolated Wetland Rules (15A NCAC 2H 1300) DWQ Surface Water or Wetland Standards ❑ Yes ® No or Riparian Buffer Rules (15A NCAC 2B 0200)? 2b Is this an after the fact permit application? ❑ Yes ® No 2c If you answered yes to one or both of the above questions provide an explanation of the violation(s) 3 Cumulative Impacts (DWQ Requirement) 3a Will this project (based on past and reasonably anticipated future impacts) result in ❑ Yes ® No additional development which could impact nearby downstream water quality? 3b If you answered yes to the above submit a qualitative or quantitative cumulative impact analysis in accordance with the most recent DWQ policy If you answered no provide a short narrative description This work is on agricultural land No new impervious surfaces are planned 4 Sewage Disposal (DWQ Requirement) 4a 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 No wastewater being generated Page 10 of 11 PCN Form — Version 1 3 December 10 2008 Version 5 Endangered Species and Designated Critical Habitat (Corps Requirement) 5a Will this project occur in or near an area with federally protected species or ❑ Yes ® No habitat? 5b Have you checked with the USFWS concerning Endangered Species Act ® Yes ❑ No impacts El Raleigh 5c if yes indicate the USFWS Field Office you have contacted ® Asheville 5d What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical Habitat NC Natural Heritage Program Virtual Workroom is nonoperational I will rely on the USFWS for the endangered Species Act review 6 Essential Fish Habitat (Corps Requirement) 6a WIII this project occur in or near an area designated as essential fish habitat? ❑ Yes ® No 6b What data sources did you use to determine whether your site would Impact Essential Fish Habitat? NOAA Essential Fish Habitat Mapper 7 Historic or Prehistoric Cultural Resources (Corps Requirement) 7a WIII this project occur in or near an area that the state federal or tribal governments have designated as having historic or cultural preservation ❑ Yes ® No status (e g National Historic Trust designation or properties significant in North Carolina history and archaeology)? 7b What data sources did you use to determine whether your site would Impact historic or archeological resources? Request for Cultural Review CRS NRCS 1835 Assembley Street Room 950 Columbia SC 29201 Trip report = 11/8/11 8 Flood Zone Designation (Corps Requirement) 8a Will this project occur in a FEMA designated 100 year floodplain? ® Yes ❑ No 8b if yes explain how project meets FEMA requirements The project will stabilize the stream banks 8c What source(s) did you use to make the floodplain determinations NC Floodplain Mapping Program William T Jones 4\ �, � I I Applicant/Agent s Printed Name Appli Agents ignat Dat (Agents signature is valid only if an authorization letter from the applicant is provided Page 11 of 11 PCN Form — Version 13 December 10 2008 Version F.U.7.— t ,yam- y} r ZP i. i,w ro, -71 7M, I"" V31e AM IMF 17 C CONTENTS Location Map Narrative Landowner Guidance for Contracting Stream Projects Specifications • Excavation — Construction Specification • Instream Structures Constructed of Rock J Hook - Construction Specification • Streamside Herbaceous Vegetation • Streamside Woody Vegetation • Tree Revetment Diagram Construction Drawing -W. �11; ti s37 -� 'a'�N'= a , \ cem Lay tom, n t r ` S / t r ey H n 6 M Yom` s �7 st It 0 em r � 1 \ Chapel Streambank and t Shoreline` �t� - Protection I� Mtn t s J " �j t ko t r \ Tony Jon 90 _X } (� � f ^`- \("_ - fit/ 1>✓� ;\ tiI `% Tom" m` 1 � j;'`�,--✓ � i� 1 , 101 � \� � \ �, �f'� �� Germ Lund .� r> 5ai 11 142 / / -i t ( / Ck- � �i � f tom✓ � j ---mot /-' � 1 K I N G� `B E S ti Mtn- i ti ry r 1 •J J \ C � I l i 1 ° iyr! Name GRANDIN Location 036 02 54 2 N 081 26 548 W Date 7!28/111 Caption Tony Jones Scale 1 Inch equals 2000 feet NCACSP Streambank and Shoreline Protection Co tnaht (C) 1997 19a,,tec Inc GENERAL PROJECT DESCRIPTION Tony Jones Fare: Streambank and Shoreline Protection Yadkin Raver Caldwell County, North Carolina This stream bank stabilization project will address the North bank of the Yadkin River on the Tony Jones cattle farm. The methods used for this streambank and shoreline protection project will include approximately 250 of tree revetment, a constructed bankfull bench with a 2 1 slope to existing ground and a rock J hook structure A large boulder will also be removed from the center of the river that catches large trees and debris directing flow toward the eroded river bank during high flows Herbaceous and woody bank vegetation establishment will provide long term stability and habitat for wildlife and aquatic species The Yadkin River along this protect length is in a moderate bend to the Southwest With the 2 — 6 vertical banks on this North side of the river the erosion ranges from past mass wasting of soil falling into the river to slight undercutting of the bank It is assumed that this erosion took place during large storm events in the past few years and is debris related The eroded bank is on the outside of a pool and does not have sufficient Riparian vegetation to self heal Loss of land, fencing, and a stock trail for cattle are among the landowner s concerns Approximately 250 of tree revetment is planned to slow down the water along this bank and trap sediment to help fill in the undercutting Also a 7 8 bankfull bench will be constructed with a 2 1 slope back up to existing ground elevations We have elected to implement a 2 1 slope instead of the typical 3 1 slope due to the existing fences that are in use for the stock trail We will also install a rock J hook structure to direct the river flow away from the bank near the downstream end of the tree revetment These corrective actions will address the problem of excessive erosion of this river bank thus preserving the land owners property reducing the sediment load of the river and preserving the previously installed stock trail and fencing that keeps the livestock out of the river 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 fob with a fixed dollar amount and should not be surprised by unforeseen changes difficulties or additional materials required to complete the fob 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 engineenng 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 tums 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 fob 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 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 T17e 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 Iof4 10/98 3 4 61 A I 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 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 8 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 9 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 Mayor Structures, or 32, Structure Concrete, as appropriate Concrete that will be permanently covered sha -1 contain not less than five (5) bags of cement per cub_c 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 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 pointmg 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 1/3 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 mterberm 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 mstream 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 mstream 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 I 11) ITEMS OF WORK Items of work to be performed in conformance with this specification and the construction details therefore are a Construct stream stabilization measures at the Tony Jones site on the Yadkin River in Caldwell County at the locations as shown on the construction drawings and as directed by the Engineer b Ingress and egress of equipment and materials shall be only at locations and through routes as approved by the Engineer c Provide all equipment tools materials and labor required to install l J hook Vane (see figures on construction drawings) which will require approximately 70 rocks for the structure approximately 4'x 3 x 15 or a minimum of 28801bs each rock 100 tons total d Remove all construction debris associated with installation of these structures to an approved location USDA NRCS page 4 of 6 Rock Structures North Carolina August 1999 C Angle (in degrees) k Vane i View Angle degrees) Dk hew Figure 1 (after Rosgen) Figure 2 (after Rosgen) l 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) J Hook with Sill Plan View Angle (in degrees) Cross Vane Plan View Figure 3 (after Rosgen) Figure 4 (after Rosgen) t Slope (m 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 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 streambanks 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 Diskmg or cultipackmg 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 Fertilmne Evenly distribute lime and fertilizer over the area to be seeded Uniformly mix line and fertilizer into the top 3 inches of the soil Where surface materials are predominately gravel and/or cobble no incorporation is required. Apply lane and fertilizer according to soil test results or at the following rates Per 1000 sq ft Per Acre Lime 50 100 lbs 1 2 tons 10 10 10 Fertilizer 9 12 Ibs 4 500 lbs Sod Mats 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 temporary ground cover is needed to allow native or woody vegetation to become established Fall, Winter. Spring Seedme Per 1000 sq ft Per Acre Oats 21bs 3 bu Wheat 2 lbs 3 bu Summer Seedme Sudangrass 1 lb, 35-45 lbs Browntop Millet 1 lb 30-40 lbs. Permanent Seedme — Use in combination with woody plantings on the upslope side of the nparian planting Spring planting time is ideal for native perennial 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 warm season grasses can be no-till planted into the sod Omit fertilizer when establishing native grasses fertihzer can be applied the second year to improve the stand. Fall. Spring Seedin g Tall Fescue (use Tall Fescue only to srhtatrons it here tall fescue nnfesta Native warm season grasses Big Little or Broomsedge Bluestein Eastern Gamma Grass or Switchgrass Per 1000 sq ft Per Acre I lb 50 lbs tron is rnei stable anvnav such as adjacent to a fescrte pasture or hay field) 0 2 lbs PLS (pure live seed) 5 lbs PLS 0 5 lb PLS 10 lbs PLS Mulclung Mulching should be performed within 48 hours of seeding Gram straw mulch should be applied on seeded areas at a rate of 3 bales per 1000 square feet or 15 tons per acre Apply mulch uniformly Anchor mulch with a mulch crimper asphalt tackifier or appropriate mulch netting I 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 Handhn2 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 seedmgs 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 mch 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 Trees greater than 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 1528 *Silky Willow Spicebush, V Streamco Willow Serviceberry Waslungton Hawthorne, Witch Hazel 8 to 12 feet Black Cherry *Black Willow 302 680 Green Ash Red Maple River Birch 7 15 Sycamore Yellow Poplar Black Walnut Persimmon NOTES * = Plants suitable for use as dormant cuttmgs space cuttings 15 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 or location. Meier to uonstruct[on Speci6cation for detailed mstallatton fnstructwns Tree Revetment Structure Ma cc Y�( _ �� --\-I Cc> >_ o■ice+ j � � --�' ' �.� 3 � � � ✓� fl ry�� on C) � o � C) _ rL LU LU w � c � 2� o o oad �cc cri C/) C daa as > O O m c c c t!1 Z a a a m W Cl) LU Z CO) 0) Cl) 'o ui 0 r N M qe a 0 o 't L, Y oiddy O /a 3 4Y N u 0 &a-PI a W q/—W hf O-6 u -Iqy 68S a o a P x 40 uaq.�a ;oad aUIIGJoyS - ellro G puD 9 S s a u o � u o f � R '' a � - t7 Z ® Ci c t1b 13 (u ~ m n - st c U s O ✓ E - '� c td /i m ti�a - kp �4 UmW �NZZ d / a p I t a o r \ -' I h y ma I V C4 _s'kc~ ?Ll 9 3 -L Z `41 � g E m A a 0 a $co 3 a, ° oc °o m �c oy y c c o 93 'b 3 p o 0 N o ) ° UIb l O C oV) U o h o— — h \ e c a -me c �� m ° a ' 'O y o I O , O IN ti o a _ w va a Cam` ° °. ° C LZI p k, O � � , 0t�� ill __ � =, - - Z va 4� UOI }DZI�ICjD }S P b y-W ces P a I° ZriF PuD uol }�a }o�d LOI ulDa� }S � M -" sauouo "y h � O a O ~ V � � O o w 1 Nq II N v x ��cacQ O cl� D D A \ o a d 5 O I ion Y� (� r Q3 � �~w 0 P M }w ��.rr�- a avec0 mv� nMO Lam' C� N"�Qv�r STREAMBANK AND SHORELINE PROTECTION OPERATION AND MAINTENANCE PLAN May 11 This plan will provide specific instructions for operating and maintaining the system to insure that it functions properly Scheduled maintenance For the first 5 years following installation, inspect the entire project for damage to the structures and/or vegetation following storm events which • Produce significant runoff or • Raise the normal water elevation of the stream Otherwise, inspect the project for damage biannually After 5 years, the vegetation should become well established Still, biannual inspection of the project should be conducted In the event structures are damaged, contact the Soil and Water Conservation Office for an appointment to evaluate the damage For vegetative damage, follow the attached guidelines for establishment and repair of tree and shrub seedlings, livestakes and herbaceous vegetation The vegetative repair shall be made during the next suitable planting date for the specific species of plants (It is important to address these damaged areas hastily as a way to reduce further damage)