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HomeMy WebLinkAbout20120964 Ver 1_401 Application_201210122050 Northpomt Drive • Suite A • Winston - Salem, NC 27106 896 -1300 phone 336 - 896 -1020 fax www geotec com TO: NC DWQ 401/Wetlands Unit 1650 Mail Service Center Suite 250 Raleigh, NC 27699 -1650 WE ARE SENDING YOU: X Attached COPIES 3 2 5 5 1 5 2® 1 2 0 9 6 4 Letter of Transmittal Date: 10/1/2012 GeoSci Job # 12.310 Coffey — Stream Bank Stabilization FROM: John Butler AtQ MAIM r the following': 1"T I/PTION S Project PCN Applications PCN Fee Check - $240 USGS Ouad Mans THESE ARE TRANSMITTED AS CHECKED BELOW: 0 For Approval Approved as Submitted For Your Use Approved as Noted 0 As Requested Revise and resubmit/for your use For Review and Comment Prints returned after review /use For bids: Other: VF—@,L��� Time: Date: REMARKS: N I ICT 1 7 2012 Attached are construction drawings and PCN's for a stream stabilization pro Salem, NC. Please contact me with questions or comments. Signed: AGENT AUTHORIZATION FORM PROPERTY LEGAL DESCRIPTION: LOT NO. Block 2507, Lot 10 PLAN NO. PARCEL ID: Forsyth County PIN 6824 -05- 9013.00 STREET ADDRESS: 2449 Ardmore Manor, Winston - Salem, NC 27103 Please print: Property Owner: Larry B. Coffey Property Owner: Snezana Bogdanovic Coffey The undersigned, registered property owners of the above noted property, do hereby authorize John A. Butler and Geoscience and Technology, PA , of Winston - Salem, NC to act on my behalf and take all actions necessary for the processing, issuance and acceptance of this permit or certification and any and all standard and special conditions attached. Property Owner's Address (if different than property above): Telephone: �� –0-36 We hereby certify the above information submitted in this application is true and accurate to the best of our knowledge. - D AuthWigntur Authorized Signature 170CT 1 7 2012 Date: Date: October 2, 2012 NCDENR - DWQ 585 Waughtown Street Winston - Salem, NC 27107 This letter is intended to clarify our plan for stream stabilization required at 2449 Ardmore Manor Drive in Winston - Salem, NC. Please refer to our previously submitted plans and PCN in reference to this letter. This project is intended to repair erosion caused by Bottom Branch Creek. The erosion has occurred in a stream bend, causing the stream bank to incise to near vertical. Our intention is to restore a suitable bank profile without further loss of land by placing geolifts and filling behind them with imported soil. Work will be limited to periods of dry weather to the greatest extent possible but the work will be performed in wet conditions. No pump around is planned due to the size and hydrologic nature of the stream. Please include this letter with our submitted plans and PCN. I am sure that the contractor can keep impacts to the stream minimized while constructing the repairs. We will be providing project testing and oversight throughout the process. I hope that this letter will serve to expedite the approval of our plans. If you have any questions, please call. Thank you for allowing us to be of service. Sincerely, Geoscience & Technology, PA John A. Butler Project Engineer o�oF w:a r�gQc 9 � r 20 1 2096 4 Office Use Only: Corps action ID no. DWQ project no. Form Version 1.3 Dec 10 2008 Pre - Construction Notification PC Form A. Applicant Information 1. Processing �` t 1 a. Type(s) of approval sought from the Corps: El Section 404 Permit El Section 16 Permit 1 b. Specify Nationwide Permit (NWP) number: 3 or General Permit (GP) number: 1c. Has the NWP or GP number been verified by the Corps? ® Yes ❑ No 1 d. 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 1 e. 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 1f. 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 in -lieu fee program ❑ Yes ® No 1g. 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: 2449 Ardmore Manor Stream Bank Stabilization 2b. County. Forsyth 2c. Nearest municipality / town: Winston -Salem 2d. Subdivision name: Ardmore Manor 2e. NCDOT only, T.I P. or state project no: 3. Owner Information 3a. Name(s) on Recorded Deed: Larry B. Coffey nCT 1 7 2012 3b. Deed Book and Page No. db 2089, pg 3338 3c Responsible Party (for LLC if applicable)- N/A pENR - y►1A ale Branch We�ande & 3d. Street address: 2449 Ardmore Manor 3e. City, state, zip: Winston - Salem, NC 3f. Telephone no.: 336- 749 -0035 3g Fax no.: 336- 750 -0536 3h Email address: Ibcoffey @coffeylaw.us 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: John A. Butler 5b. Business name (if applicable): Geoscience & Technology, P.A. 5c. Street address: 2050 Northpoint Drive 5d City, state, zip. Winston - Salem, NC 27106 5e. Telephone no.: 336.896.1300 5f. Fax no.: 336.896.1020 5g. Email address: cvi @geotec.com 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): 6824 -05- 9013.00 Latitude: 36 -03 -54.2 Longitude: - 80 -16- 1 b. Site coordinates (in decimal degrees): 57.47 (DD DDDDDD) (- DD.DDDDDD) 1 c. Property size: 0.47 acres 2. Surface Waters 2a. Name of nearest body of water (stream, river, etc.) to Bottom Branch Creek proposed project: 2b. Water Quality Classification of nearest receiving water: C 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 site is a residential home site approximately 0.47 acres in size. The land uses in the immediate area are residential as well Bottom Branch Creek transects the property. The stream is deeply incised at the repair location with near vertical bank heights at the waters edge on the east side exceeding 6 feet in height due to bank erosion. 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. 180 3d. Explain the purpose of the proposed project: The purpose of this project is to reclaim yard space lost due to bank erosion and prevent additional damage from occurring. 3e. Describe the overall project in detail, including the type of equipment to be used: The stream will be realigned to divert the erosive forces of the stream away from the yard and landscaped areas. Land area lost to erosion will be replaced, and the stream banks will be armored to prevent aditional damage. This site will require the following equipment; trackhoe, backhoe, walk behind vibratory roller, bobcat/mini- excavator. 4. Jurisdictional Determinations 4a. Have jurisdictional wetland or stream determinations by the Corps or State been requested or obtained for this property / ❑Yes ®No El Unknown project (including all prior phases) in the past? Comments: 4b. If the Corps made the jurisdictional 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 ❑ Yes ® 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 1 a. 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 T W1 ❑ P ❑ T ❑ 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 Ri -Ra /Geolifts p p Bottom Branch Creek ® PER ❑ INT ® Corps ® DWQ 24 tob -tob 107 S2 ❑ P ❑ T ❑ PER ❑ Corps ❑ INT ❑ DWQ S3 ❑ P ❑ T ❑ PER ® Corps ❑ INT ® DWQ 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 32 31. Comments- Impact length measured at existing stream centerline. 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 T 01 ❑P ❑T 02 ❑P ❑T 03 ❑P ❑T 04 ❑P ❑T 4f. Total open water impacts 4g. Comments: 5. Pond or Lake Construction If pond or lake construction proposed, 5a. I 5b. Pond ID number then complete the chart below. 5c. 5d. 5e. Wetland Impacts (acres) Stream Impacts (feet) Upland Proposed use or purpose (acres) of pond Flooded I Filled I Excavated Flooded I Filled I Excavated Flooded P1 P2 5f. Total 5g. Comments: 5h. Is a dam high hazard permit required? ❑ Yes ❑ No If yes, permit ID no: 5i. Expected pond surface area (acres): 5j. Size of pond watershed (acres): 5k. Method of construction: 6. Buffer Impacts (for DWQ) 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. Project is in which protected basin? 6b. 6c. 6d. Buffer impact number — Reason Permanent (P) or for Temporary (T) impact B1 ❑P ❑T B2 ❑P ❑T B3 ❑P ❑T 6i Comments: ❑ Neuse ❑ Tar - Pamlico ❑ Other: Yadkin -Pee Dee ❑ Catawba ❑ Randleman 6e. I 6f. I 6g. Buffer Stream name mitigation required? ❑ Yes ❑ No ❑ Yes ❑ No ❑ Yes ❑ No 6h. Total buffer impacts Zone 1 impact Zone 2 impact (square feet) I (square feet) Page 6 of 11 PCN Form — Version 1.3 December 10, 2008 Version D. `Impact Justification and Mitigation 1. Avoidance and Minimization 1 a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project. Single equipment access point provided and no additional access points will be allowed. Permanent hard reinforcement in combination with vegetative stabilization methods determined to be only stable stream reinforcement technique due to existing sod conditions and flows expected. Alternative methods such as root balls considered and determined to be unstable due to large stream flows. 1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques. Banks will be stabilized as fill is placed Erosion control measures per the plan. 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 F-1 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 - ripanan 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 1 3 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 1a. 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 - No Change % 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 a repair project. No new development of impervious area. 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? Winston -Salem /Forsyth County ® 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) 1 a. Does the project involve an expenditure of public (federal /state /local) funds or the ❑ Yes ® No use of public (federal /state) land? 1 b. 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. 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. N/A Page 10 of 11 PCN Form — Version 1.3 December 10, 2008 Version 6. Endangered Species and Designated Critical Habitat (Corps Requirement) 5a. Will this project occur in or near an area with federally protected species or El Yes ®No habitat? 5b. Have you checked with the USFWS concerning Endangered Species Act ❑Yes ®No impacts? 5c. If yes, indicate the USFWS Field Office you have contacted. El Raleigh ❑ Asheville 5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical Habitat? Physical observation of the surrounding area - heavily developed residential use. There is no habitat for the red - cockaded woodpecker or the bog turtle per USFWS website. 6. Essential Fish Habitat (Corps Requirement) 6a. Will 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? Class C urban creek. There is no essential fish habitat. Checked http: // ocean. floridamarine .org /efh— coral /ims /viewer.htm 7. Historic or Prehistoric Cultural Resources (Corps Requirement) 7a. Will 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? North Carolina State Historic Preservation Office Website; NC list of National Historic Register sites and recent nominations. NC Office of State Archaeology website; list of archaeological sites. 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: This site is in a designated FEMA floodplain. 8c. What source(s) did you use to make the floodplain determination? FEMA (FIRM) flood map #3710682400J. John A. Butler Geoscience and Technology, PA C�J��� 10/1/12 Applicant/Agent's Printed Name Date Applicant/Agent's Signature (Agent's sign We is valid only if an authorization letter from the applicant is provided ) Page 11 of 11 PCN Form — Version 1.3 December 10, 2008 Version 1\\ \ \ \ \ S \ r \ ` \ \ \ \ c�� \ E : G SAND/GRAVEL BAR. EXISTING TREE �_ \ \ TO REMAIN / A V� ff �� �Q O� S eb �`� \ \ \ }\\ \ �C•ff \ e \ ro �y A t \ f UPSTREAM LIMIT OF GEOLIFTS R 14 #1 LEGEND: EXISTING TREE LINE PROPERTY LINE (APPROXIMATE) — 752 — --- EXISTING CONTOURS (d 2' INTERVALS — 750— EXISTING CONTOURS @ 10' INTERVALS 752 PROPOSED CONTOURS (d 2' INTERVALS 750— PROPOSED CONTOURS @ 10' INTERVALS 0 750 PROPOSED SPOT ELEVATION — — EXISTING STREAM CENTERLINE CLi" �F \ EXISTING ROCK \ \ \ \ ♦ ` \ \ `1'J' o SOIL/FABRIC GEOLIFIS MONO \ \ \ \rte'" \ _ (MAX SLOPE 1:1) \ \ \ \ REMOVE EXIS1'kG WOOD FENCE AS REQUIRED R HA DP IP -RAP \ \ ?? �`qr ,'�`.�;. \ \ REPAIRS. REINSTALL FENCE ONCE REPAIRS ARE \ THE TO REF, ROOTS` h ''y" \ \\ COMPLETE ALLOWIN)' INIMUM 5 FEET CLEARANCE \ \ x`�' , \ BETWEEN NEW TOP OF BRI KK AND FENCE. \ \ ILL ALLOW \\ \ \ \ \CY jS 2 \\ \ \\ ss EXISTI ROCK DOWNSTREAM LIMIT OF GEOLIFT \s 5 \ \ PROVIDE KEYED� SS "B" RIP- RAP'WTH NCDOt \ _ _ f `J'` TYPE 2 GEOFABRIIQ UNDERLINER. ALL P -RAP f 4 SHALL BE HAND PLACED�NO DUMPED STONE-WILL BE ACCEPTED. KEY RIP -RAC NTO T \ \ \� \` - S REAM BO \ ";,;u . "yd \ S a �. ; \ \ PER DEtL THIS SHEET IN ALL LOCATIONS WHERE \ \ �,., ,; <,SD' H \ NATIVE ROCK ALLOWS. V A EXISTINb,STREAM CENTERLINE \ \ 107 LF STREAM IMP' AGT STREAM LENGTH ` \i' �' \ x� � ^ `' \ \ A;�-��� �' \ ( ) V v vO ` 0 x.0 \ \\ a e� „ ♦ A �� \ \ \ \ \ \ 100 YEAR FLOOD LINE \ � `EXIS G ROCK \ \ \\ \ x \ \ \\ PRQPERTY LINE \\ \\ \ \\ l -• • • ° �\ \�. �� `�\ \ \ \ APPROXIMATE \ `� RO /EJN #2 ' \ x \ \ -7-52 \ \ \ \ EN NEERING CONSULTANT,\ \ \ \ \ �\ e e \ \ '� m \ EXISTING SAN�D/.�RA BAR \ \ GE❑ IENCE & TECHNOLOGY \ \ \ \ 2050 �THPOINT DRIVE \ \ \ \ \ ' \ �, \ ' ` EXII8T\ING TR TO REMA • N WINSTON ALEM, N.C. 27106 H ONE (33> 896 -1300 \ ( III BEET) \ \ \ ° C1aRQ •' 1- ,` g \\ \ \\ \\ 1 inch =,-Io ft. \\ `� ` 5���° °BENS •R! o „y o \\ • t � Y REV NO DRAWN BY DE 'P ON DATE STREA M STABILIZATION PLAN m o v �`! 6e a' ' 6 - o =2 = �� �° - eoScl��. GEOSCI PROJ 12 310 2449 ARDMORE MANOR ��' °9;vc co�;?c'° o",a�” (Dieu, P. SHEET DATE s' WINSTON- SALEM, NORTH CAROLINA of0'Od0 °TEG�'` °a ° ° °a V "hwicalEnbinee6igdc S_ 1 10/02/12 OOOOOpppgppaCCC Ert•u-onmentalSolu&) as' r .1 Vol 1 00 \ 1 \\ \ rl i r•e \ t \ \ PQ410 f \ G � \ _ I 1p Q \\ \\ \\ \\ ® \' pt:' .�\ ) I EXISTING TREE P i TO REMAIN 1p \ \ \ \ { 1 1 � \ \ y o.• d \ \ EXIST14C.; SAND / RAVEL B4R \ \ \ \ \ EX. TREE v'in EX. TREE \ \ \ \ \ J -HOOK \ \ \ ® i \ EIP i \HAND PLAC RIP --RAP A \ \ \ \ \ Tti-iE TOE AS EE OOTS\ \ o \, UPSTREAM LIMIT OF GEO FTS \ \ (!! A�LO W \ ® \ f a \ \ EXI IjING ROCK \ a \ \ f EX. CONCRETE DRIVEWAY \ 5 \ \ N \ \ \ \\ \ \ \\ \ EXISTING ROCK \ \ \` 10 EX. TRLE, E / I \ PROVIDE KEY D CLASS "B" -RAP ITH N DOT \ \',; :, \ \ TYPE 2 GE ABRIC UNDERLINER �•!RIP- P ®n \ \ I SHALL BE HAND CED - NO DU ED ST NE L `i \ f (MAX ABRIC GEOLIFTS o \ 1 BED ACCEPTED. KE RIP -RAP INTO EAM 8,077 \ 0 \\ (MX SLOPE 1:1) PIER DETAIL THIS EET IN ALL LO G�A ONS ER EX. TREE \ \ NATIVE kt K A�OWS. 12" BIRCH \\ \ EING STREAM E ERLINE \ sp "\ \\ \ -I' �ST \ f o REMOVE ISTING WOOD FENCE AS REQUIRED FOR \` \ \\ \\ \ \ ® \ \\ \ REPAIRS. R INSTALL FENCE ONCE REPA[RS ARE f \ \ ® \\ \ COMPLETE A OWING MINIMUM 5 FEET CLEARANCE \ \ 107 LF SCREAM IMPACT {S\TREAM LNGTHH \ " \ \\ \ BETWEEN NE TOP OF BANK AND FENCE. \ 100 YEARFLOOD LINE IPIP EX. TREE I .. PR(�PFRN INF 1 \� \ ,.. I .' °' \� \� \ "i1, \ \\ \\ \\ EXISTING; R \ \ \ \ 00 LF STREAM IMPACT lE G7- \ \ F(M ASUREb ALONG ORIGINAL STREAK C N \ \ \ \ EX E \ \ \ \ \ t 1 ( 1 \ a 1 I t °oE f I 1 \ \ a ¢ I I \ \ 40- I f 1 \ 0 I f 1 o 1 � I 6 f I I 1 N I I 1 1 1 I I U t to I NF SS SS - c � ( t j s N \ F r a o ( LOCK \ �' \ k , '' \ \ \ \ \ ` `" :` • :< -��. s�` \ EXISTING SANITARY SEWER SHOWN APPROXIMATE. SEE NOTES NGIStAVEL B \ `� \ \ \ s REGARDING UTILITIES THIS SHEET. \ EX. SSMH RLINE) dG SAN GRiO� L BAR DOWNSTREAM LIMIT �91w GEOLIFTS \ \\ \ \ d ® 1 \ EXISTING TREE TO REjUlAIN \ \ 1 I \ s EX. TREE \ -HOOK 2 `m•`: S: '.�1k0� o j 1 \ \u�p \ d . \ �X. \TREE \ o \ \\ \ \ `I'S \ EXISTING\S(4 RAV BAS ♦' ° \ ° \ \ \ \EX. TREE s EX. SSMH tR -SS SS SS SS\\ SS SS SS IP 1p GENERAL NOTES: 1. ALL DESIGN CONTOURS AND SPOT ELEVATIONS REFLECT FINISHED GRADES. 2. EXISTING FEATURES AND TOPOGRAPHY ARE SHOWN PER A FIELD SURVEY BY GEOSCIENCE & TECHNOLOGY, PA AS WELL AS PUBLICLY AVAILABLE INFORMATION OF RECORD. 3. PERMANENT FILL SLOPES SHALL BE PLACED ON A SUITABLE FOUNDATION AND SHALL BE CONSTRUCTED AT 2H:1V (HORIZONTAL TO VERTICAL) OR FLATTER, UNLESS OTHERWISE NOTED ON THE PLANS. 4. ANY PERMITS REQUIRED FOR BORROW AND WASTE AREAS SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR. 5. ANY GRADING BEYOND THE LIMITS OF CONSTRUCTION SHOWN IS SUBJECT TO A FINE. 6. CONTRACTOR SHALL INSTALL ANY EROSION CONTROL MEASURES SHOWN ON THE PLAN PRIOR TO STARTING GRADING OPERATIONS. NO DEVICE MAY BE REMOVED UNTIL SITE IS STABILIZED. NO DEVICE MAY BE REMOVED WITHOUT AUTHORIZATION FROM THE ENGINEER AND THE ACTING NCDENRINSPECTOR. 7. THE CONTRACTOR SHALL BLEND NEW EARTHWORK SMOOTHLY WITH EXISTING CONTOURS. 8. ALL DISTANCES ARE HORIZONTAL GROUND. 9. EXISTING UTILITIES SHOWN APPROXIMATE PER INFORMATION OF RECORD AND A SURVEY BY GEOSCIENCE. PRIOR TO COMMENCING WORK, THE CONTRACTOR SHALL CONTACT A UTILITY LOCATING SERVICE SO THAT ACTUAL UTILITY LOCATIONS CAN BE FIELD MARKED PRIOR TO BEGINNING CONSTRUCTION. CONFLICTS WITH SITE IMPROVEMENTS SHALL BE REPORTED TO THE ENGINEER FOR RESOLUTION PRIOR TO CONSTRUCTION. 10. IF THE SITE IMPROVEMENTS SHOWN ARE DISCOVERED TO BE IN CONFLICT WITH EXISTING SITE CONDITIONS, SHALL BE CALLED TO THE ATTENTION OF THE ENGINEER PRIOR TO PROCEEDING WITH WORK. 11, THE CONTRACTOR(S) SHALL CONTACT ALL OWNERS OF EASEMENTS, UTILITIES AND RIGHT -OF -WAYS, PUBLIC OR PRIVATE, PRIOR TO WORKING IN THESE AREAS. 12, DAMAGE TO EXISTING INFRASTRUCTURE (INCLUDING THE EXISTING SANITARY SEWER) OCCURRING AS A RESULT OF CONSTRUCTION ACTIVITIES SHALL BE REPAIRED AT THE SOLE EXPENSE OF THE CONTRACTOR. ADDITIONAL NOTES: 1. STABILIZATION IS THE BEST FORM OF EROSION CONTROL. TEMPORARY SEEDING IS NECESSARY TO ACHIEVE EROSION CONTROL ON LARGE DENUDED AREAS AND ESPECIALLY WHEN SPECIFICALLY REQUIRED AS PART OF THE CONSTRUCTION SEQUENCE. IN PARTICULAR: A. GROUND STABILIZATION MUST BE ACHIEVED ON PERIMETER AREAS AND ALL GRADED AREAS WITH SLOPES EXCEEDING 3:1 WITHIN 7 DAYS. B. GROUND STABILIZATION MUST BE ACHIEVED ON ALL OTHER GRADED AREAS WITHIN 14 DAYS. 2. EROSION CONTROL BLANKETS SHALL BE PROVIDED AS SHOWN. ADDITIONAL EROSION CONTROL MEASURES MAY BE REQUIRED AS DICTATED BY FIELD CONDITIONS, THE ENGINEER AND /OR THE OWNER. 3. GROUND COVER SHALL BE ESTABLISHED ON EXPOSED AREAS WITHIN 21 DAYS FOLLOWING ANY PHASE OF GRADING. ALL EROSION AND SEDIMENT CONTROL PRACTICES SHALL BE CHECKED FOR STABILITY AND OPERATION FOLLOWING EVERY STORM EVENT, BUT IN NO CASE LESS THAN ONCE EVERY WEEK. ANY REPAIRS OR CLEANING NECESSARY TO MAINTAIN EROSION AND SEDIMENT CONTROL PRACTICES SHALL BE COMPLETED IMMEDIATELY. 4. ALL SEEDED AREAS SHALL BE REFERTILIZED, RESEEDED AS NECESSARY, AND MULCHED ACCORDING TO THE SEEDING SCHEDULE. 5. REMOVE TEMP SILT FENCE, TEMPORARY DIVERSION BERMS, ANY TEMP TREE PROTECTION FENCE, AND SKIMMER BASINS AFTER THE SITE HAS BEEN PERMANENTLY STABILIZED. ( IN FEET ) 1 inch = 10 ft. LEGEND: ,__ti ,. _.; ­ _, _„ ,- ,. EXISTING TREE LINE . • . • . • - - -- PROPERTY LINE (APPROXIMATE) 752 EXISTING CONTOURS @ 2' INTERVALS 750 EXISTING CONTOURS @ 10- INTERVALS 752 PROPOSED CONTOURS @ Z INTERVALS 750 PROPOSED CONTOURS @ 10' INTERVALS o750 PROPOSED SPOT ELEVATION i 0 0 EXISTING STREAM CENTERLINE o d0 NEW STREAM CENTERLINE VICINITY MAP SCALE: T'= 1000't . CONSTRUCTION SEQUENCE: I, 1. CONTRACTOR SHALL ENSURE THAT ALL APPLICABLE PERMITS (FEDERAL, STATE, COUNTY, AND LOCAL) AND APPROVALS HAVE BEEN OBTAINED PRIOR TO PROCEEDING WITH WORK ASSOCIATED WITH THESE DOCUMENTS. 2. THE CONTRACTOR SHALL VISIT THE SITE PRIOR TO MAKING A BID IN ORDER TO COMPENSATE FOR ANY FIELD CONDITIONS THAT ARE NOT SHOWN ON THIS PLAN. 3. SCHEDULE A PRE - CONSTRUCTION CONFERENCE WITH OWNER, THE ENGINEER, AND ALL CONTRACTORS ASSOCIATED WITH THE WORK. 4. FLAG THE NEW CONSTRUCTION LIMITS AS INDICATED ON THE PLAN, DO NOT EXCEED PROPERTY BOUNDARIES WITHOUT WRITTEN APPROVAL OF ADJACENT PROPERTY OWNERS. THE EXISTING PROPERTY LINES ARE SHOWN APPROXIMATE. 5. HAVE ALL UNDERGROUND UTILITIES FIELD MARKED BY A LICENSED UTILITY LOCATION SERVICE OR THE UTILITY OWNER AS NECESSARY TO AVOID DAMAGE TO UTILITIES. 6. ENSURE THAT ANY EROSION CONTROL DEVICES SHOWN ON THE PLAN ARE IN PLACE TO BEGINNING WORK IN THE STREAK. 7. CHECK WEATHER CONDITIONS FOR THE WORK PERIOD. THE CONTRACTOR SHALL WORK DURING PERIODS OF LOW STREAM FLOW.. THE CONTRACTOR SHALL SCHEDULE WORK TO COINCIDE WITH PERIODS OF FAVORABLE WEATHER FORECASTS. 8. UNDERCUT SOFTMET SOILS AT SLIDE FACE TO EXPOSE FIRM SOIL. CONTACT ENGINEER TO VERIFY UNDERCUT IS ACCEPTABLE. UNDERCUT REQUIREMENTS SHALL BE AT THE DISCRETION OF THE ENGINEER AS DICTATED BY FIELD CONDITIONS. 9. LOCATE A SOURCE OF COHESIVE BACKFILL. CONTACT ENGINEER TO SCHEDULE AN INSPECTION OF THE PROPOSED BACKFILL AT THE BORROW SITE PRIOR TO IMPORTING ANY BACKFILL TO THE SITE. THE SUITABILITY OF THE BACKFILL SOURCE SHALL BE AT THE DISCRETION OF THE ENGINEER. 10. INSTALL CLASS "B" RIP-RAP TOE PROTECTION WITH GEOFABRIC LINER PER DETAIL THIS SHEET. 11. PLACE COMPACTED BACKFILL BEHIND THE RIP - RAP TOE PROTECTION. BACKFILL SHALL BE COMPACTED TO AT LEAST 951/o MAXIMUM DRY DENSITY AS DETERMINED BY A STANDARD PROCTOR TEST PERFORMED ON A REPRESENTATIVE SAMPLE OF THE FILL. IF THE CHARACTERISTICS OF THE FILL SOURCE CHANGE, ADDITIONAL PROCTOR TESTS WILL BE REQUIRED CAUSING WORK DELAYS. THE CONTRACTOR SHALL SCHEDULE ACCORDINGLY. 12. INSTALL GEOLIFTS WITH SOIL BACKFILL. BATTER LIFTS PER DETAIL. 13. ONCE FILL PLACEMENT IS COMPLETE AND APPROVED BY THE ENGINEER, SEED AND REINFORCE THE REMAINING EXPOSED SLOPE WITH A BIODEGRADABLE STRAW /NET ROLLED EROSION CONTROL PRODUCT (RECP). SEED AND MULCH ALL OTHER DISTURBED AREAS AS WELL. 14. INSTALL VEGETATION BETWEEN GEO LIFTS PER DETAIL AND INSTALLATION NOTES. CUTTINGS SHALL BE INSTALLED IN THE DORMANT SEASON. PROJECT NARRATIVE: THIS PROJECT IS INTENDED TO STABILIZE THE STREAM BANK ONLY WITHIN THE LIMITS AS SHOWN ON THIS PLAN.THE INTENTION OF THIS PROJECT IS TO RECLAIM THE STREAM BANK THAT HAS BEEN LOST DUE TO EROSION. NO MAJOR STREAM REALIGNMENT IS INTENDED, STREAM IMPACT LENGTH, AS MEASURED ALONG THE EXISTING STREAM CENTERLINE, SHALL NOT EXCEED 107 LF. STREAM DISTURBANCE OUTSIDE THE LIMITS AS PERMITTED BY NCDENR -WATER QUALITY DIVISION MAY INCUR FINES AND REPAIR OF DAMAGES OR BOTH. THIS PROJECT IS LOCATED WITHIN A FLOODPLAIN PER FEMA FIRM 3710682400J. NOTES: SEED ALL FOCAL BARE AREAS PER NC HWY 67 S1LAS CREEK PARKWAY a PERMANENT SEEDING SPECIFICATION. < 1. EMBED RIP -RAP AS NATIVE ROCK IN PROVIDE BIODEGRADEABLE ` _, STREAM BED ALLOWS. KAYWOOD LANE z m i 0 0 m o d0 i g1 i LIVE STAKING PER SPECIES LIST ARDMORE MANO W BENCH. SEED WITH RIPARIAN SITE \ ARDMORE MANOR i 900 GRAM/ SQUARE -'- i 4811 METER COAIR FABRIC VICINITY MAP SCALE: T'= 1000't . CONSTRUCTION SEQUENCE: I, 1. CONTRACTOR SHALL ENSURE THAT ALL APPLICABLE PERMITS (FEDERAL, STATE, COUNTY, AND LOCAL) AND APPROVALS HAVE BEEN OBTAINED PRIOR TO PROCEEDING WITH WORK ASSOCIATED WITH THESE DOCUMENTS. 2. THE CONTRACTOR SHALL VISIT THE SITE PRIOR TO MAKING A BID IN ORDER TO COMPENSATE FOR ANY FIELD CONDITIONS THAT ARE NOT SHOWN ON THIS PLAN. 3. SCHEDULE A PRE - CONSTRUCTION CONFERENCE WITH OWNER, THE ENGINEER, AND ALL CONTRACTORS ASSOCIATED WITH THE WORK. 4. FLAG THE NEW CONSTRUCTION LIMITS AS INDICATED ON THE PLAN, DO NOT EXCEED PROPERTY BOUNDARIES WITHOUT WRITTEN APPROVAL OF ADJACENT PROPERTY OWNERS. THE EXISTING PROPERTY LINES ARE SHOWN APPROXIMATE. 5. HAVE ALL UNDERGROUND UTILITIES FIELD MARKED BY A LICENSED UTILITY LOCATION SERVICE OR THE UTILITY OWNER AS NECESSARY TO AVOID DAMAGE TO UTILITIES. 6. ENSURE THAT ANY EROSION CONTROL DEVICES SHOWN ON THE PLAN ARE IN PLACE TO BEGINNING WORK IN THE STREAK. 7. CHECK WEATHER CONDITIONS FOR THE WORK PERIOD. THE CONTRACTOR SHALL WORK DURING PERIODS OF LOW STREAM FLOW.. THE CONTRACTOR SHALL SCHEDULE WORK TO COINCIDE WITH PERIODS OF FAVORABLE WEATHER FORECASTS. 8. UNDERCUT SOFTMET SOILS AT SLIDE FACE TO EXPOSE FIRM SOIL. CONTACT ENGINEER TO VERIFY UNDERCUT IS ACCEPTABLE. UNDERCUT REQUIREMENTS SHALL BE AT THE DISCRETION OF THE ENGINEER AS DICTATED BY FIELD CONDITIONS. 9. LOCATE A SOURCE OF COHESIVE BACKFILL. CONTACT ENGINEER TO SCHEDULE AN INSPECTION OF THE PROPOSED BACKFILL AT THE BORROW SITE PRIOR TO IMPORTING ANY BACKFILL TO THE SITE. THE SUITABILITY OF THE BACKFILL SOURCE SHALL BE AT THE DISCRETION OF THE ENGINEER. 10. INSTALL CLASS "B" RIP-RAP TOE PROTECTION WITH GEOFABRIC LINER PER DETAIL THIS SHEET. 11. PLACE COMPACTED BACKFILL BEHIND THE RIP - RAP TOE PROTECTION. BACKFILL SHALL BE COMPACTED TO AT LEAST 951/o MAXIMUM DRY DENSITY AS DETERMINED BY A STANDARD PROCTOR TEST PERFORMED ON A REPRESENTATIVE SAMPLE OF THE FILL. IF THE CHARACTERISTICS OF THE FILL SOURCE CHANGE, ADDITIONAL PROCTOR TESTS WILL BE REQUIRED CAUSING WORK DELAYS. THE CONTRACTOR SHALL SCHEDULE ACCORDINGLY. 12. INSTALL GEOLIFTS WITH SOIL BACKFILL. BATTER LIFTS PER DETAIL. 13. ONCE FILL PLACEMENT IS COMPLETE AND APPROVED BY THE ENGINEER, SEED AND REINFORCE THE REMAINING EXPOSED SLOPE WITH A BIODEGRADABLE STRAW /NET ROLLED EROSION CONTROL PRODUCT (RECP). SEED AND MULCH ALL OTHER DISTURBED AREAS AS WELL. 14. INSTALL VEGETATION BETWEEN GEO LIFTS PER DETAIL AND INSTALLATION NOTES. CUTTINGS SHALL BE INSTALLED IN THE DORMANT SEASON. PROJECT NARRATIVE: THIS PROJECT IS INTENDED TO STABILIZE THE STREAM BANK ONLY WITHIN THE LIMITS AS SHOWN ON THIS PLAN.THE INTENTION OF THIS PROJECT IS TO RECLAIM THE STREAM BANK THAT HAS BEEN LOST DUE TO EROSION. NO MAJOR STREAM REALIGNMENT IS INTENDED, STREAM IMPACT LENGTH, AS MEASURED ALONG THE EXISTING STREAM CENTERLINE, SHALL NOT EXCEED 107 LF. STREAM DISTURBANCE OUTSIDE THE LIMITS AS PERMITTED BY NCDENR -WATER QUALITY DIVISION MAY INCUR FINES AND REPAIR OF DAMAGES OR BOTH. THIS PROJECT IS LOCATED WITHIN A FLOODPLAIN PER FEMA FIRM 3710682400J. NOTES: SEED ALL FOCAL BARE AREAS PER a PERMANENT SEEDING SPECIFICATION. < 1. EMBED RIP -RAP AS NATIVE ROCK IN PROVIDE BIODEGRADEABLE STREAM BED ALLOWS. STRAW /PLASTIC NET SLOPE PROTECTION. 2. SEE DETAILED GEOLIFT CONSTRUCTION NATIVE BORROW OR IMPORTED SEQUENCE ON SHEET C2. TOPSOIL COMPACTED WITH EXCAVATOR BUCKET i LIVE STAKING PER SPECIES LIST l W BENCH. SEED WITH RIPARIAN MIX. MULCH WITH STRAW 900 GRAM/ SQUARE -'- 4811 METER COAIR FABRIC 0. s 12" LIFT HEIGHT LLJ 1, 24 _ Zq� MIN. � \ \ 18" ((- I If STREAM BOTTOM - - - ° _f�I- L! ,(„f D COMPACTED SELECT FILL 24" EMBEDMENT CLASS "B" RIP -RAP. HAND PLACEMENT ONLY. MIN. THICKNESS 18". SECTION A - A STREAM CHANNEL TYPICAL SECTION NCDOT TYPE 2 FILTER WITH RIP -RAP & GEOLIFTS FABRIC UNDERLINER. ANCHOR FABRIC AS SHOWN. (NOT TO SCALE) OCT 1 7 2012 JR i REVISIONS fFrt 3r,r SHEET a < CL i i W LiJ 0. s 0 LLJ 44t U) SHEET L a c E a z A C 0 v c V 1 O_ E 0 M �i U 0 m N r O N r O i� I Jill 1. 900 GRAM/SQ. MATER COIR FABRIC SHALL BE )♦ AS FABRIC MATERIAL. 6. SEE LIVE MATTRESS SPECIFICATIONS THIS SHEET. CONSTRUCTION SEQUENCE: 1. THE CONTRACTOR SHALL ONLY CONDUCT STREAM BANK AND BED WORK THAT CAN BE COMPLETED . • STABILIZED WITHIN A DAY. STREAM 2. SCHEDULE WORK TO COINCIDE WITH cPERIODS OF FAVORABLE WEATHER AND SUBSEQUEN LOW • 1 7" =-7T?' U J t f y �3 ,t�.��rk,•s�•rd'�_C�d.l+��ui?t rt;,�i •'�S•ir �+{ �t L'• '•� ,, r f r a. L •a t ,r,..; 1 a f' rr �d t .riS. • �}5+ t.} ��+ ••' tLF us Aftkw Vi in1a wild 15 raw i5 sidl a Cree I rays 1® Rudbedda Pft NC opt B Susari W 10 gmagift t aut lance leaf Ickseed 10 Pankum dardoWnum lit Door to us 10 t biuestem 05 Jun= effusix Mgt Soft rush LLJ 05 Schinochka mytWis Oil LL Awned bamyard girm 05 Bch um um little biuestem 05 Crum nutarm Indian gives 05 i and Gamma grass 1 ilIl •.: �;::. °I(.yl(,.! „t• is i£- I .1 ,'lrl IT 7" fi ,M �l_f'!! �L r 7177! 77 1 M .,. t 17. LIVE STAKING SPECIFICATIONS AND INSTALLATION 1. SCOPE The work shall consist of furnishing and installing or planting live plant materials on streambanks and eroding slopes to stabilize the bank a nd control erosion. 2. MATERIALS All materials furnished shall most the following requirements unless otherwise specified In section 9 of this specification: General - Plant materials shall be live, viable woody vegetation free of insects and diseases. The plants shall consist of the species which will root, such as Salix species (willow), Comus species (dogwood), alnus species (alder), or as specified on the drawings or in section 9 of this specification. The plant materials shall be from commercial sources or shall be harvested from existing local stands as specified in section 9 of this specification. Root systems and limbs shall be kept intact and undamaged. Pruning cuts or cuts for live unrooted cuttings shall be smooth as not to damage the remaining bark of the plant. Live stakes shall be living, woody plant cuttings with side branches removed and the bark intact. They shall be prepared from 1/2 inch to 2 Inch diameter stock and out into lengths that will reach sustainable soil moisture when installed, generally 2 to 5 feet. The basal or butt ends shall be cleanly cut at an angle to facilitate easy insertion into the soil. The top shall be cut square or blunt. Pilot holes may be required depending on soil conditions. Dead Stout Stakes shall be cut to a minimum length of 24 Inches from untreated 2 x 4 inch lumber. Each length shall be cut diagonally across the 4 inch face, to produce two dead stout stakes. The diagonal cut shall begin and end 118 to 1/4 Inch from the edge of the piece so the finished stake has a 1/8 to 1/4 inch t1p. Only sound lumber shall be used. Vegetated Geogrids will consist of live plant materials or cuttings between wrapped soil lifts. 3. HARVESTING INDIGENOUS SPECIES The plant materials shall be harvested from existing stands of living woody vegetation. The harvested plant materials shall be one of the following listed species and determined suitable by the engineer. Comus amomum, Silky Dogwood Cephalanthus occidentalis, Butionbush Physocarpus opulifollus, Ninebark Salix sericea, Silky Willow Sambucus canadensis, American Elderberry Live cuttings shall be securely bundled at the collection site with branches and limbs kept intact and transported in enclosed or covered vehicles. Cuttings shall be stored out of direct sunlight, in a cool shaded location, sprayed with water and covered with a wet tarp. Cuttings should be Installed within 24 hours of harvest. Live cuttings that cannot be Installed within 24 hours shall be placed in storage at 40 °F to 50 °F. Cuttings shall be refrigerated, if the air temperature is above 50 °F. rior to installation the cutting shall be placed (cut ends) in water for 24 hours to allow for uptake of water by the cutting. 4. PLANT MATERIALS FROM COMMERCIAL SOURCES Plant material from commercial sources shah be harvested Just before shipment to the site or harvested no earlier than two months before planting and put in refrigerated storage at 40 °F to 50 °F. When shipped, plants shall be transported in enclosed or covered vehicles and scheduled to arrive on site within 24 hours. The plants shall be bundled and packed to prevent damage to the bark, limbs, or root systems. All bare root plants shall be treated with a root gel to prevent drying. Plant materials should be planted the day they arrive on site. Plants that cannot be planted the day of arrival shall be stored onsfte and protected from wind, direct sunlight, drying out or other damage. Cuttings shall be stored to protect them from them from drying out by keeping them In a cool place and damp. Cuttings or unrooted stock not planted within two days after arrival on the site shall be discarded unless refrigerated at 40 °F to 50 °F. Discarded materials shall be replaced from commercial sources at this Contractor's expense. 5. TIMING OF PREPARATION, INSTALLATION, AND PLANTING All planting of woody vegetation shall be accomplished during the dormant season between October 1 and May 15. Installation of plant materials should begin concurrently with the earth moving operations and should be completed no later than 10 days after the slope has been prepared. When the planting is delayed beyond 10 days, the slope shall be protected from erosion by mulching with straw at the rate of 2 tons per acre or Instaliing erosion control blankets. 6. INSTALLATION Live stakes shall be installed in the configuration, spacing, and areas shown on the drawings. The cuttings shall be tamped into the ground at right angles to the slope to a minimum depth of 18 Inches for a firm hold. Where soils are soft and 24 inch stakes are not solid (i.e., If they can be moved by hand) 36 inch stakes s!hali be used. Where soils are so compacted or frozen that 24 inch stakes cannot be tamped Into the ground without splitting, pilot holes shall be drilled using an auger or reinforcing rod. Pilot holes shall be narrower in diameter than the live stakes. Vegetated geogrids incorporate brush layers with natural or synthetic geotextile materials wrapped around each soil lift. Starting at the bottom of the slope, the bank shalt be excavated to a depth of 2 feet. Live brush shall be placed horizontally, on the contour, in a crisscross manner. The brush shall be 5 feet in length and placed at the rate of 5 stems per linear foot. 7. PLANTING ROOTED STOCK Bare Rooted Cuttings, Seedlings or Trees shall be dipped in a root gel just prior to planting. Holes for plants shall be made by a planting bar or shovel In the prepared slope. The holes shall be of sufficient size to permit placing the plant without bending the root. Plants shall be placed In the holes to the same depth as they were originally growing. Rooted cuttings or seedlings shall be planted on approximately 5 foot centers in rows or randomly along the contour of the slope. Rows shall be 5 feet apart and plants shall be staggered from row to row. Random planting and use of multiple species will contribute to a more natural appearance. Holes made with a shovel shall be filled with excavated soil and pressed firmly around the roots up to the ground surface. Holes made with a planting bar may be closed with the planting bar firming the soil at the bottom of the hole first and then firming the soil at the top. All spaces within one foot of the plant shall be filled with soil and compacted assure not air spaces remain. Any plant materials damaged during Installation or determined to be unsuitable by the engineer shall be removed and replaced at the Contractor's expense. 7/11/12 -NOTES ;,aeten®eaep,a tia4� CAR D .Fe ® ®����NSl ©b 9 's 3AL o® a w ?� C -1179 �za c o C TE rA .y W IX 0 lit Wool i Mgt LLJ Oil LL Fill STREAM STABILIZATION PLAN DETAILS SCALE: AS SHOWN i S y` Al a W 0 m E v Z c 0 V h c 0 0 O M N V" in o_ M N N Z 0 0 N O v 0 Pro I . &;;w j q� ATE,{: rang ` r Pf+ �ifrT.�+ 74'ff4.b••k {4����(('b.T t./r11��i Jii / "�•.I'.Y'��•Y��• .!u 2,Ai.. r.!"pS ,f1,.Y�...A'"T ,a''4, rt.FVt/^•L0 C•3 Y. a•1.i"tl s' j'•' NX ..� N,C' -Depth at 0.91 of Vane long �,•�T s! �' u��Yi...'' �,. �,..: �". �" n. �; �. �.. r.' �.. r;, ..: 4.% 6,., 3k• r?' �, rr'$.. r' ti.. 1�. ?�JS..r3..tt.�1:i`.`s�i.;,+'.?� -,� e, �'' r �'' ,r rf' .° °• ¢° c' t n° p '' � "' '� fo` ,e�' 3 °� 11'� s,�; +�' �}. � ,.. a 4t., r `� ,' �' .'r r µyo.• ,+.. •'�•r - ,."' ,.� >'.?'* y,,,• F` „* -•! ''tier f,d`, 4 �`.•',� y. , • Je tie. �,. ..C'"r fr y.�` .T� L • t' ys„m�le+,�e°'va°f�s'• .... r.'' � • F �' y�'i M^. r•', ' 1 :8 -- s Et ;. -.. _ �., _x '•�y.��::.. _ - mss.. ^,.,ii! :.a.2� .ice'`• `• e -• V^ ' - _ ,• „pas 91 MIX Ill _ 111 t;. e. �y. a i r'' • We Figure 9. Locations — positions of rocks andfooters in relation to channel shape and depths. M HOOK CONSTRUCTION (NOT TO SCALE, SEE SHEET C1 FOR PLACEMENT AND LENGTH REQU11REMENTS) Table 6.10a Temporary Seeding Recommendations for Late Winter and Early Spring 6.10,4 Seeding mixture Species Rate (Iblacre) Rye (grain) 120 Annual lespedeza (Kobe in Piedmont and Coastal Plain, Korean In Mountains) 50 Omit annual lespedeza when duration of temporary cover is not to extend beyond June. Seeding dates Mountains —Above 2500 feet: Feb. 15 - May 15 Below 2500 feet: Feb. 1- May 1 Piedmont —Jan. 1 - May 1 Coastal Plain- -Dec.1 -Apr. 15 Soli amendments Follow recommendations of soil tests or apply 2,000 Iblacre ground agricultural limestone and 750 Iblacre 10 -10 -10 fertilizer, Mulch Apply 4,000 Iblacre straw. Anchor straw by tacking with asphalt, netting, or a mulch anchoring tool. A disk with blades set nearly straight can be used as a mulch anchoring tool. Maintenance Refertilize If growth Is not fully adequate. Reseed, referlllize and mulch immediately following erosion or other, damage. Q Table 6.14a Muicning Materials ana application males Material Rate Per Acre Quality Notes Organic Mulches CL i Straw 1 -2 tons Dry, unchopped, Should come from wheat or oats; 0 Z unweathered; avoid spread by hand or machine; must L) weeds. be tacked down. Wood chips 5-6 tons Air dry Treat with 12 Ibs nitrogen/ton. Apply c 0 with mulch blower, chip handier, or 0 Qa to by hand. Not for use in One turf. Wood fiber 0.5 -1 tons Also referred to as wood cellulose. < CD May be hydroseeded. Do not use in Cry & �. oe hot, dry weather. Bark 35 cubic yards Air.dry, shredded or Apply with mulch blower, chip L o! as hammer- milled, or chips. handler, or by hand. Do not use o s° asphalt tack. Corn stalks 4 -5 tons Cut or shredded In 4-6 Apply with mulch blower or by hand. Q; as C� in. lengths. Not for use in fine turf. Sericea 1-3 tons Green or dry; should lespedeza i` / cm contain mature seed. seed - bearing stems 0 0 (l Nets and Mats' Z:' Jute net Cover area Heavy, uniform; woven Withstands waterfiow. Best when of single jute yam. used with organic mulch. Fiberglass net Cover area Withstands waternow. Best when SEAL om Q - cn -A 0 -3172 �� e ® ° ®�® ev® used with organic mulch. Excelsior Cover area Withstands waterfiow. (wood fiber) mat Fiberglass roving 0.5.1 tons Continuous fibers of Apply with a compressed air ejector. drawn glass bound Tack with emulsified asphalt at a together with a non -toxic rate of 25 -35 gal /1,000 sq ft. . agent. Chemical StabilizerV Aquatain follow Not beneficial to plant growth. Aerospray manufacturer's Curasol AK specifications Petroset SB Terra Tack Crust 500 Genaqua 743 M -145 'Refer to Practice No. 6.30, Grass Lined Channels. zUse of trade names does not imply endorsement of product. 6.14.2 Table 6,10b Temporary Seeding Recommendations for Summer Table 6,111 Seeding No. 2P for Gentle Slopes, Average Soil; Low Maintenance 6.11.20 Practice Standards and Specifications Seeding mixture Species Rate (Iblacre) German millet 40 In the Piedmont and Mountains, a small- stemmed Sudangrass may be substituted at a rate of 50 lb/acre. Seeding dates Mountains --May 15 - Aug. 15 Piedmont --May 1 -Aug, 15 Coastal Plain —Apr. 15 -Aug. 15 Soil amendments Follow recommendations of soil tests or apply 2,000 Iblacre ground agricultural limestone and 750 Iblacre 10 -10 -10 fertilizer. Mulch Apply 4,000 Iblacre straw. Anchor straw bytacking with asphalt, netting, or a mulch anchoring tool. A disk with blades set nearly straight can be used as a mulch anchoring tool. Maintenance Refertilize If growth is not fully adequate. Reseed, refertiiize and mulch Immediately following erosion or other damage. Seeding mixture species' Rate (lb /acre) Tail fescue 80 Sericea lespedeza 20 Kobeiespedaza 10 Seeding notes 1. After Aug. 15, use unsearified sedcea seed. 2. Where periodic mowing is planned or a neat appearance Is desired, omit sericea and Increase Kobe lespedeza to 40 Iblacre. 3. To extend spring seeding dates Into .tune, add 15 Iblacre hulled Bermudagrass. However, after mid -Apr. it is preferable to seed temporary cover. Nurse plants Between May 1 and Aug. 15, add 10 Iblacre German millet or 15 ib/ acre Sudengrass. Prior to May 1 or after Aug. 15, add 40 Iblacre rye (grain). Seeding dates Best Possible Fall: Aug. 25 - Sept, 15 Aug, 20 - Oct. 25 Late Winter. Feb. 15 - Mar. 21 Feb. 1 -Apr. 15 Fall Is best for tall fescue and late winter for lespedezas. Overseeding of Kobe lespedeza over fall - leaded tail fescue Is very effective. Sol amendments Apply lime and fertilizer according to soil tests, or apply 4,000 Iblacre ground agricultural limestone and 1,000 Iblacre 10 -10 -10 fertilizer. Mulch Apply 4,000 lb/acre grain straw or equivalent cover of another suitable mulch. Anchor straw by tacking with asphalt, netting, or roving or by crimping with a mulch anchoring tool. A disk with blades set nearly straight can be used as a mulch anchoring tool. Maintenance Refertilize In the second year unless growth is fully adequate. May be mowed once or twice a year, but mowing is not necessary. Reseed, fertilize, and mulch damaged areas immediately. 'Refer to Appendix 8.02 for botanical names. 6.10.5 `'REVISIONS CL i ®' 0 Z < L) o, r. N LU W c 0 0 Qa to 0 Lij=e < CD o' Cry & �. oe c co N;' °. Q L o! as °q o s° Q; as C� CI j�_]� ' Ap- i` / cm 0 0 (l Z:' O SEAL om Q - cn -A 0 -3172 �� e ® ° ®�® ev® SB'! ®� 2�1 STREAM STABILIZATION PLAN DETAILS SCALE: AS SHOWN I � CL i ®' 0 Z < L) LU W c 0 0 Lij=e < CD t•. �. LJJ t co N;' °. STREAM STABILIZATION PLAN DETAILS SCALE: AS SHOWN I �