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HomeMy WebLinkAbout20100141 Ver 3_More Info Received_20130823Engineering, PLLC August 22, 2013 Mr. Danny Smith NC DENR Division of Water Quality 3800 Barrett Drive Suite 101 Raleigh, North Carolina 27609 William W. Dreitzler, P.E. 800 New Charleston Drive Fuquay Varina, NC 27526 Phone: (919) 818 -2235 bill.dreitzler@yahoo.com 10 -014 v.3 Nicholas S. Rightmyer, P.E. P.O. Box 1448 Roanoke Rapids, NC 27870 Phone: (252) 532 -2364 nsrightm @yahoo.com Reference: Re- Submittal of Nationwide 29 Pre- Construction Notification — MODIFICATION DWQ Project # 10 -0141, Ver.3 Collymore Lane Residential Subdivision Warren County, North Carolina Dear Mr. Smith: For your review, please find attached the Subdivision project: • Four (4) Pre- Construction Not • Four (4) Stormwater Calculatii • Four (4) Wetlands Impacts M. • Two (2) Construction Drawin • Two (2) Construction Drawings kria., Comments from your letter dated June 25`h have been addressed as follows: Collymore Lane Residential Comment 1): Please provide a site plan showing streams and protected riparian buffers as overlays on the site plan. Zone 1 and Zone 2 of the riparian buffer must be differentiated on this plan. DM2 response: The boundaries of the riparian buffers were added to the site plan and an impacts map was created with each impact zone clearly defined. Comment 2): Enumerate all stream and riparian impacts on the site plan and clearly label impacts. These impacts must then correspond to the impacts listed in the application. DM2 response: Each impact area is labeled on the attached impacts map and corresponds with the impacts listed in the application. Comment 3): Since the project proposes to impact protected riparian buffers, there needs to be a diffuse flow plan or an explanation for why a diffuse flow plan is not included with the application. "See original application" is not an adequate response to the question. DM2 response: A diffuse flow plan is not proposed for this project, and an explanation is included on the application. Slopes within the buffer areas are greater than the maximums permissible for level spreaders. The alternative to level spreaders is typically installation of BMP measures upstream of the buffers, however, because the project is of a very low density, and stormwater runoff flows through grassed yards, shoulders, and conveyance channels before reaching the buffer area, it is our opinion that the BMP treatment is not warranted. Comment 4): Plan sheets must be stamped, signed, and dated. DM2 response: Plan sheets included in this re- submittal have been stamped, signed, and dated. Please feel free to contact me at your earliest convenience if you have questions or need additional information. Sincerely, DM2 Engineering, PLLC Nicholas S. Ri er, P.E. Project Engineer Cc: Collymore Bey ADM2 Engineering, PLLC ot WA L14 o < Office Use Only: Corps action ID no. DWQ project no. Form Version 1.4 January 2009 Pre - Construction Notification (PCN) Form A. Applicant Information 1. Processing 1 a. Type(s) of approval sought from the Corps: © Section 404 Permit ❑ Section 10 Permit 1 b. Specify Nationwide Permit (NWP) number: 29 or General Permit (GP) number: 1 c. Has the NWP or GP number been verified by the Corps? Q 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 Q 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 Q 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 ❑X 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 ❑X No 2. Project Information 2a. Name of project: Collymore -Bey Property 2b. County: Warren 2c. Nearest municipality / town: Vaughn / Macon 2d. Subdivision name: Collymore Lane 2e. NCDOT only, T.I.P. or state project no: n/a 3. Owner Information 3a. Name(s) on Recorded Deed: Mr. Clement Collymore -Bey 3b. Deed Book and Page No. DB 873 PG 48 3c. Responsible Party (for LLC if applicable): Mr. Clement Collymore -Bey AUG � ' � 2013 3d. Street address: 1151 Macon Embro Road - wa 3e. City, state, zip: Macon, North Carolina 27551 wench 3f. Telephone no.: (919) 724 -3194 3g. Fax no.. 3h. Email address: beyman97531@centurylink.net Page 1 of 10 PCN Form — Version 1.4 January 2009 4. Applicant Information (if different from owner) 4a. Applicant is: ❑ Agent ❑ Other, specify: 4b. Name: Same as Owner 4c. Business name (if applicable): 4d. Street address: 4e. City, state, zip: 4f. Telephone no.: 4g. Fax no.: 4h. Email address: S. Agent/Consultant Information (if applicable) 5a. Name: Nicholas S. Rightmyer, PE 5b. Business name (if applicable): DM2 Engineering, PLLC 5c. Street address: P.O. Box 1448 5d. City, state, zip: Roanoke Rapids, NC 27870 5e. Telephone no.: (252) 532 -2364 5f. Fax no.: 5g. Email address: nsdghtm @yahoo.com Page 2 of 10 B. Project Information and Prior Project History 1. Property Identification 1a. Property identification no. (tax PIN or parcel ID): H6 33 & H6 33A 1 b. Site coordinates (in decimal degrees): Latitude: 36.39161 Longitude: - 78.06503 1c. Property size: 26.74 acres 2. Surface Waters 2a. Name of nearest body of water to proposed project: Intermittent tributary to Little Fishing Creek 2b. Water Quality Classification of nearest receiving water: C,NSW 2c. River basin: Tar - Pamlico 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 forested, except for the existing dearing and roadway construction, and consists of gently rolling topography. Land use within the general vicinity consists of mostly rural agricultural land with scattered residential dwellings 3b. List the total estimated acreage of all existing wetlands on the property: 0.25 3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property: 1,893 3d. Explain the purpose of the proposed project: The purpose of the proposed project is to replace existing metal pipes with reinforced concrete pipe, and to add required energy dissipators. 3e. Describe the overall project in detail, including the type of equipment to be used: The existing pipe will be removed and replaced with RCP, and the Energy dissipators will be installed. 4. Jurisdictional Determinations 4a. Have jurisdictional wetland or stream determinations by the Corps or State been requested or obtained for this property / project (including all prior phases) in the past? ❑X Yes ❑ No ❑ Unknown Comments: 4b. If the Corps made the jurisdictional determination, what type of determination was made? ❑ Preliminary ❑ Final 4c. If yes, who delineated the jurisdictional areas? Name (if known): Agency /Consultant Company: Dramby Environmental Consultin 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 this project (including all prior phases) in the past? DYes ❑ No ❑ Unknown 5b. If yes, explain in detail according to "help file" instructions. A 401 permit has been issued for this project. This application is for replacement of the installed pipe and installation of dissipator pads. 6. Future Project Plans 6a. Is this a phased project? ❑ Yes © No 6b. If yes, explain. Page 3 of 10 PCN Form — Version 1.4 January 2009 C. Proposed Impacts Inventory 1. Impacts Summary 1 a. Which sections were completed below for your project (check all that apply): ❑ Wetlands ❑X Streams — tributaries ❑X 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. Wetland impact number Permanent (P) or Tem ora 2b. Type of impact 2c. Type of wetland 2d. Forested 2e. Type of jurisdiction Corps (404,10) or DWQ (401, other) 2f. Area of impact (acres) W1 - Choose one Choose one Yes/No - W2 - Choose one Choose one Yes/No - W3 - Choose one Choose one Yes/No - W4 - Choose one Choose one Yes/No - W5 - Choose one Choose one Yes/No - W6 - Choose one Choose one Yes/No - 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. Stream impact number Permanent (P) or Temporary m 3b. Type of impact 3c. Stream name 3d. Perennial (PER) or intermittent (INT)? 3e. Type of jurisdiction 3f. Average stream width (feet) 3g. Impact length (linear feet) S1 P Culvert #1 unnamed INT DWQ 60 S2 P Dissipator #1 unnamed INT DWQ 32 S3 P Culvert #2 unnamed INT DWQ 24 S4 P Dissipator #2 unnamed INT DWQ 24 S5 T Future Utility Install unnamed INT DWQ 10 S6 - Choose one - - 3h. Total stream and tributary impacts 150 3i. Comments: All existing pipe that was included in the original application to be removed. Length shown above include new pipe length to be installed plus length of dissipator pads The temporary impacts included above are from the original application for future utility installations. Page 4 of 10 PCN Form — Version 1.4 January 2009 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. Open water impact number Permanent (P) or Temporary 4b. Name of waterbody (if applicable) 4c. Type of impact 4d. Waterbody type 4e. Area of impact (acres) 01 - Choose one Choose 02 - Choose one Choose 03 - Choose one Choose 04 - Choose one Choose 4f. Total open water Impacts 4g. Comments: 6. Pond or Lake Construction If pond or lake construction proposed, the complete the chart below. 5a. Pond ID number 5b. Proposed use or purpose of pond 5c. Wetland Impacts (acres) 5d. Stream Impacts (feet) 5e. Upland (acres) Flooded Filled Excavated Flooded Filled Excavated P1 Choose one P2 Choose one 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? ❑ Neuse Q Tar - Pamlico ❑ Catawba ❑ Randleman ❑ Other: 6b. Buffer Impact number — Permanent (P) or Temporary 6c. Reason for impact 6d. Stream name 6e. Buffer mitigation required? 6f. Zone 1 impact (square feet ) 6g. Zone 2 impact (square feet B1 P Roadway Grading unnamed No 4,322 3,116 B2 T EC & Utility Install unnamed No 1,317 982 B3 P Roadway Grading unnamed No 1,985 1,237 B4 - Yes/No B5 - Yes/No B6 - Yes/No 6h. Total Buffer Impacts: 7,624 5,335 6i. Comments: Page 5 of 10 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. The proposed design is similar to the original design, except for the addition of dissipator pads. The width of the second crossing was reduced to the minimum to meet the developers needs. 1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques. A sediment and erosion control plan has been prepared and will be implemented during construction. 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 Q 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: Choose one Type: Choose one Type: Choose one Quantity: Quantity: Quantity: 3c. Comments: 4. Complete If Making a Payment to In -lieu Fee Pro ram 4a. Approval letter from in -lieu fee program is attached. ❑ Yes 4b. Stream mitigation requested: linear feet 4c. If using stream mitigation, stream temperature: Choose one 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 6 of 10 PCN Form — Version 1.4 January 2009 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 7 of 10 E. Stormwater Management and Diffuse Flow Plan (required by DWQ) 1. Diffuse Flow Plan 1 a. 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. Level spreaders are not appropriate due to excessive slope within the buffer. The majority of the runoff Yes No from impervious surfaces flows through grass shoulders, yards, and grass ditches, all of which help ❑ © reduce pollutants before reaching the buffer. Check dams are proposed just outside of the buffer areas to reduce velocity before entering the buffer. 2. Stormwater Management Plan 2a. What is the overall percent imperviousness of this project? 10 2b. Does this proj ect require a Stormwater Management Plan? ❑ Yes No 2c. If this project DOES NOT require a Stormwater Management Plan, explain why: The proposed design is very similar to the original design that was previously permitted, with no additional pervious area proposed. The development is low density, and utilizes grassed ditches for drainage. The volume of traffic on the proposed roadway is expected to be very low, which minimizes pollutant loads from vehicle traffic. A large percentage of the development will remain undisturbed and will remain pervious, greatly offsetting the impervious area proposed. Per the original application, no special control measures should be needed for these stream crossings. 2d. If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan: 2e. Who will be responsible for the review of the Stormwater Management Plan? 3. Certified Local Government Stormwater Review 3a. In which local government's jurisdiction is this project? Warren 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 ❑HQW 4a. Which of the following state - implemented stormwater management programs apply ORW (check all that apply): HSession Law 2006 -246 []Other: 4b. Has the approved Stormwater Management Plan with proof of approval been ❑ Yes ❑ No attached? 6. 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? Q Yes ❑ No Page 8 of 10 PCN Form — Version 1.4 January 2009 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)? 1c. 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 ❑ Yes ❑ No letter.) 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, ❑X Yes ❑ No or Riparian Buffer Rules (15A NCAC 2B .0200)? 2b. Is this an after - the -fact permit application? ❑Yes ❑X No 2c. If you answered "yes" to one or both of the above questions, provide an explanation of the violation(s): Adequate erosion control measures were not implemented during the initial construction, which has resulted in sediment deposits within the downstream stream beds. The proposed erosion control plan includes instructions to remove the sediment with shovels and buckets and restore the stream bed to native soils / grades. 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. Homes will have individual septic systems on each lot. Page 9 of 10 PCN Form — Version 1.4 January 2009 P . S. 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? T-- Sc. If yes, indicate the USFWS Field Office you have contacted. 5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical Habitat? Previously detemdrred from original submitlal S. 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? Previously detemmned from odpal submittal 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 [3 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? Previously determined from original submittal B. 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: Sc. What source(s) did you use to make the ftoodptain determination? Previously determined from original Submittal 4 /°'O Applicant/Agent's Printed Name Applican ig nure ftenrs sgnatu y tf aaModao Date letter from the a RMU Is rovided. Page 10 of 10 f 10 -oty1 V3 Stormwater Management Calculations for: LwwZ:R'. COLLYMORE LANE MACON EMBRO ROAD Warren County, North Carolina Project #: xxx SS!�I0O O� �Z August 2013 Prepared by: DM2 Engineering, PLLC William W. Dreitzler, P.E. 1416 Pendergrass Road Sanford, NC 27330 Phone: (919) 818 -2235 bill dreitzler@yahoo com Nicholas S Rightmyer, P.E. P.O. Box 1448 Roanoke Rapids, NC 27870 Phone (252) 532 -2364 nsnghtm @yahoo com 1#$- �N"01 0 t3 O g. ZZ �Z /i --Rainfall Intensity (in /hr) Project: Collymore Bey Subdivision PREPARED BY: 1 (10yr) = 7 Date: August 2013 DM2 ENGINEERING, PLLC I (2yr) = 5.5 By: NSR DITCH CALCULATIONS Road Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Main Side (Left / Right) L L L L L L L L L L L L L R R R R Start Station 0 +00 1 +50 2 +50 5 +75 6 +50 CULV 1 CULV 1 8 +50 CULV 2 CULV 2 13 +5 14 +25 15 +00 0 +00 1 +50 2 +50 5 +75 End Station 1 +50 2 +50 5 +75 6 +50 CULV 1 CULV 1 8 +50 CULV 2 CULV 2 13 +5 14 +25 15 +00 CULV 3 1 +50 2 +50 5 +75 6 +50 c 0.5 0.5 0.5 0.6 0.5 0.4 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.6 A (Ac) 0.16 0.21 0.42 0.05 0.05 48.1 1.29 1.45 0.48 0.32 0.31 0.16 0.08 0.06 1.18 0.1 op = (6fs) 0.56 0.735 1.47 0.21 0.175 134.68 4.515 5.075 1.68 1.12 1.085 0.56 0.28 0.21 4.13 0.42 Op total 0.56 1.295 2.765 2.975 3.15 153.615 15.785 11.27 4.865 2.8 1.12 2.205 2.765 0.28 0.49 4.62 5.04 Slope (ft/ft) ! 0.085 0.04 0.04 0.0675 0.1 0.06 0.0375 0.0375 0.11 0.11 0.11 0.085 0.04 0.04 0.0675 iBottom Width (ft) f 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Sideslope,(x:1) 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 Sideslope (0) 2 2 2 2 4 4 2 2 2 2 4 2 2 1.5 2 Max Depth (ft) 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 Is Grass Liner OK? YES YES YES YES YES NO YES YES YES NO NO YES YES YES YES Grass Type Fescue Fescue Fescue Fescue Fescue Fescue Fescue Fescue Fescue Fescue Fescue Fescue Fescue Fescue Fescue Class _ _ _ Erodible Erodible Erodible Erodible Erodible Erodible Erodible Erodible Erodible Erodible Erodible Erodible Erodible Erodible Erodible Pro os_ed_Liner _ NAG S75 NAG S75 NAG S75 NAG C125 NAG C125 NAG S75 NAG C125 NAG S75 NAG C125 NAG C125 NAG S75 NAG S75 NAG S75 NAG SC150 NAG C125 ,A eptabts Volo ty? YES YES YES YES YES NO YES YES YES YES YES YES YES YES YES Retardence Glass D D D D D D D D D D D D D D D Max Velocity (ft) 4.5 5 5 4.5 3.5 4.5 5 5 3.5 3.5 3.5 4.5 5 5 4.5 Roughness Coefficient 0.12 0.09 0.07 0.06 0.06 0.04 0.04 0.07 0.08 0.06 0.07 0.16 0.14 0.05 0.05 Actual Velocity 1.26 1.44 2.16 2.84 3.06 5.15 4.08 2.11 2.13 3.05 2.99 0.82 0.81 2.87 3.67 Actual Depth 0.42 0.60 0.72 0.65 0.54 0.94 1.05 0.73 0.46 0.54 0.51 0.37 0.49 0.85 0.74 Adequate mitt ? YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES Retardence Class B B B B B B C B B B B B B B B Roughness Ccefl Tent 1.36 0.64 0.30 0.25 0.27 0.10 0.06 0.31 0.54 0.28 0.29 4.00 2.30 0.19 0.17 Acts Velocity 0.20 0.32 0.69 0.98 1.03 2.61 3.20 0.67 0.52 1.00 0.96 0.07 0.10 1.12 1.50 Actual q� 1.06 1.26 1.27 1.10 0.94 1.32 1.19 1.29 0.93 0.94 0.90 1.23 1.42 1.36 1.16 Temp. Liner OK (2yr)? YES YES YES YES YES NO YES YES YES NO NO YES YES YES YES Permissable Shear Stress 1.55 1.55 1.55 2.25 2.25 1.55 2.25 1.55 2.25 2.25 1.55 1.55 1.55 2 2.25 Permissable Velocity 5 5 5 10 10 5 10 5 10 10 5 5 5 8 10 Roughness Coefficient 0.055 0.055 0.052 0.022 0.022 0.043 0.020 0.052 0.022 0.022 0.055 0.055 0.055 0.044 0.022 Actual Velocity 2.08 1.93 2.44 5.75 6.33 4.73 6.95 2.40 5.41 6.41 3.19 1.75 1.51 3.21 6.56 Actual'Depth 0.29 0.46 0.60 0.40 0.33 0.87 0.71 0.61 0.26 0.33 0.44 0.22 0.32 0.71 0.49 Actual Shear Stress 1.54 1.15 1.49 1.70 2.09 3.24 1.67 1.42 1.75 2.26 3.03 1.19 0.80 1.77 2.07 Is Turf Re. Mat OK? N/A N/A N/A N/A N/A YES N/A N/A N/A YES YES N/A N/A N/A N/A Liner i NAG SC250 NAG SC250 NAG SC250 NAG SC250 NAG SC250 NAG C350 NAG SC250 NAG SC250 NAG P550 NAG C350 NAG C350 NAG SC250 NAG SC250 NAG SC250 NAG SC250 IiProposed Unveg. - Stable (2 yr)? YES YES YES YES NO YES YES YES YES YES YES YES YES YES NO Permissable Shear Stress ; 2.5 2.5 2.5 2.5 2.5 3 2.5 2.5 3.25 3 3 2.5 2.5 2.5 2.5 !Permissable Velocity ! 9.5 9.5 9.5 9.5 9.5 10.5 9.5 9.5 12.5 10.5 10.5 9.5 9.5 9.5 9.5 j Roughness Coefficient ( 0.040 0.040 0.039 0.040 0.040 0.033 0.031 0.039 0.041 0.041 0.041 0.040 0.040 0.036 0.037 !Actual Velocity 2.64 2.45 3.02 3.68 4.04 5.71 4.97 2.97 3.39 4.02 3.98 2.22 1.92 3.71 4.41 lActual Depth 0.26 0.41 0.54 0.50 0.42 0.79 0.84 0.54 0.32 0.42 0.39 0.20 0.28 0.66 0.60 !Actual Shear Stress 1.37 1.02 1.34 2.12 2.61 2.95 1.97 1.27 2.21 2.85 2.71 1.06 0.71 1.64 2.53 Vegetated - Stable? YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES Permissable Shear Stress 15 15 15 15 15 20 15 15 25 20 20 15 15 15 15 Permissable Velocity 8 8 8 8 8 10 8 8 12 10 10 8 8 8 8 Roughness Coefficient 1 0.040 0.040 0.038 0.039 0.040 0.032 0.029 0.038 0.041 0.041 0.041 0.040 0.040 0.034 0.036 lActual Velocity 2.80 2.60 3.28 3.99 4.29 6.29 5.50 3.22 3.60 4.27 4.23 2.36 2.04 4.06 4.80 Actual Depth 0.28 0.45 0.58 0.55 0.46 0.85 0.91 0.59 0.35 0.45 0.43 0.22 0.31 0.71 0.65 Actual Shear Stress v 1.50 1.11 1.45 2.30 2.86 3.17 2.12 1.38 2.42 3.12 2.97 1.16 0.77 1.77 2.73 /i Grass Type Fescue Fescue Fescue Fescue Fescue Fescue Fescue _ SOD Clams s Erodible NAG C125 Rainfall Intensity (in /hr) Erodible NAG C125 Erodible NAG S75 Erodible NAG C125 Erodible NAG C125 Erodible NAG S75 Proposed Liner _ d At0a ;ie Veto] YES YES I (10yr) = 7 YES YES YES YES Retardence Class D D D D 1 (2yr) = 5.5 D D Max Velocity (fVs) 4.5 3.5 3.5 5 3.5 3.5 DITCH CALCULATION: Roughness Coefhclent 0.06 0.08 0.09 0.11 0.07 0.09 0.12 Actual Velocity 3.34 Road Main Main Main Side Side Side Side Side Side Side (Left / Right) R R R L L L R R R Start Station 6 +50 CULV 1 CULV 1 0 1 +50 2 +50 CULV 2 1 +50 2 +50 End Station CULV 1 CULV 1 CULV 3 1 +50 2 +50 END 1 +50 2 +50 END C 0.47 0.5 0.92 0.39 0.5 0.5 0.5 0.5 0.5 0.5 A (Ac) 0.95 0.05 Temp. liner OK (2 yr)? NO 0.08 0.06 0.24 0.34 0.06 0.19 op = (cfs) 2.25 0.175 153.615 DITCH 0.28 0.21 0.84 1.19 0.21 0.665 OP total 5 5.215 158.83 5 1.33 1.05 0.84 2.065 0.875 0.665 ;Slope (ft/ft) 0.055 0.07 6.28 5.55 0.105 0.105 0.03 0.105 0.105 0.03 Bottom Width (ft) 0.27 0 0.41 0.32 0 0 0 0 0 0 Sideslope (x:1) 2.12 3 0.71 Is Turf Re. Mat OK? 3 3 3 3 3 3 jSideslope (x:1) Proposed Liner 4 NAG SC250 NAG P550 2 2 2 2 2 2 Max Depth ft YES 1.5 NO YES 1.5 1.5 1.5 1.5 1.5 1.5 Is Grass Liner OK? YES 2.5 Permissable Velocity YES YES YES YES YES YES Grass Type Fescue Fescue Fescue Fescue Fescue Fescue Fescue _ SOD Clams s Erodible NAG C125 Erodible NAG C125 Erodible NAG C125 Erodible NAG S75 Erodible NAG C125 Erodible NAG C125 Erodible NAG S75 Proposed Liner _ d At0a ;ie Veto] YES YES YES YES YES YES YES Retardence Class D D D D D D D Max Velocity (fVs) 4.5 3.5 3.5 5 3.5 3.5 5 Roughness Coefhclent 0.06 0.08 0.09 0.11 0.07 0.09 0.12 Actual Velocity 3.34 2.29 2.01 0.98 2.88 1.81 0.85 Actual Ceptb 0.67 0.48 0.46 0.59 0.54 0.44 0.56 Adequate CapaciW YES YES YES YES YES YES YES Retardence Class , B B B B B B B Roughness Coefficient 0.20 0.46 0.59 1.20 0.31 0.72 1.66 Actual Velocity 1.28 0.60 0.47 0.16 0.92 0.39 0.12 Actual D�dt 1.08 0.94 0.94 1.43 0.95 0.95 1.48 Temp. liner OK (2 yr)? YES YES YES YES YES YES YES Permissable Shear Stress 2.25 2.25 2.25 1.55 2.25 2.25 1.55 Permissable Velocity, 10 10 10 5 10 10 5 Roughness Coefficient 0.022 0.022 0.022 0.055 0.022 0.022 0.055 Actual Velocity 6.28 5.55 5.23 1.56 6.19 5.00 1.47 Actual Depth 0.43 0.27 0.25 0.41 0.32 0.23 0.38 Actual Shear Stress , 1.89 1.80 1.65 0.77 2.12 1.54 0.71 Is Turf Re. Mat OK? N/A N/A N/A N/A N/A N/A N/A Proposed Liner NAG P550 NAG SC250 NAG P550 NAG SC250 NAG SC250 NAG P550 NAG SC250 Unveg. - Stable (2 yr)? YES YES YES YES NO YES YES Permissable Shear Stress 3.25 2.5 3.25 2.5 2.5 3.25 2.5 Permissable Velocity 12.5 9.5 12.5 9.5 9.5 12.5 9.5 Roughness Coefficient 0.040 0.040 0.041 0.040 0.040 0.041 0.040 Actual Velocity 4.01 3.54 3.28 1.97 3.96 3.13 1.86 Actual Depth 0.54 0.34 0.32 0.37 0.41 0.30 0.33 Actual Shear Stress f 2.36 2.25 2.08 0.68 2.65 1.94 0.63 Vegetated - Stable? YES YES YES YES YES YES YES Permissable Shear Stress 25 15 25 15 15 25 15 Permissable Velocity, 12 8 12 8 8 12 8 Roughness Coefficient 0.039 0.040 0.041 0.040 0.040 0.041 0.040 Actual Velocity f 4.36 3.76 3.48 2.10 4.20 3.33 1.98 Actual Depth 0.58 0.38 0.35 0.40 0.44 0.32 0.37 Actual Shear Stress ___i 2.55 2.46 2.28 0.75 2.91 2.12 0.69 DM2 Engineering, PLLC William W. Dreitzler, P.E. 1416 Pendergrass Road Sanford, NC 27330 Phone: (919) 818 -2235 bill.dreitzler @yahoo.com PIPE CALCULATIONS n = 0.013 Nicholas S. Rightmyer, P.E. P.O. Box 1448 Roanoke Rapids, NC 27870 Phone: (252) 532 -2364 nsrightm @yahoo.com Upstream S C I A g 0 total Rea. Pro. Size Culvert 1 1 From Ditch Calcs => 114.74 114.74 44.08 48 Culvert 2 1 From Ditch Calcs => 2.49 2.49 10.48 15 Culvert 3 3 From Ditch Calcs => 51.88 51.88 26.64 30 Summary of Calculations s = slope n = roughness coefficient Q = flowrate - from ditch calculations or Q =CiA Req. Size= 16 *(((Q *n) /(sgrt(s /100))) ^(3 /8)) Project Name: Collymore Project Number: )000t Project Location : Macon, NC Designed by: NSR Date: 24- Apr -13 DM2 Engineering, PLLC William W. Dreitzler, P.E. 1416 Pendergrass Road Sanford, NC 27330 Phone: (919) 818 -2235 bill.dreitzler@yahoo.com Nicholas S. Rightmyer, P.E. P.O. Box 1448 Roanoke Rapids, NC 27870 Phone: (252) 532 -2364 nsrightm @yahoo.com DISSIPATOR PAD CALCULATIONS Type A = no defined Channel Type B = into defined channel Project Name: Collymore Project Number: =oc Project Location: Macon, NC Designed by: NSR Date : 4/24 Summary of Calculations Zone = per figure 8.06.b.1 in the Design Manual Length = per figure 8.06.b.2 in the Design Manual B.W. = Bottom Width of downstream ditch Width = 3 ' pipe diameter Depth = ( ( width - bottom width) / 2) / sideslope Thickness = per table on bottom of page 8.06.6 of the Manual Stone Type = per figure 8.06.b.2 in the Design Manual Type B Type B Type A Type B Outlet Dia. Velocity Zone Type sideslope B.W. Width Depth Length Thickness Stone Tyne CLVT 1 48 12.65 3 B 4 0 12 1.5 32 2 1 CLVT 2 15 4.80 1 B 4 0 12 1.5 5 1 A CLVT 3 36 15.88 3 B 4 0 12 1.5 24 2 1 Summary of Calculations Zone = per figure 8.06.b.1 in the Design Manual Length = per figure 8.06.b.2 in the Design Manual B.W. = Bottom Width of downstream ditch Width = 3 ' pipe diameter Depth = ( ( width - bottom width) / 2) / sideslope Thickness = per table on bottom of page 8.06.6 of the Manual Stone Type = per figure 8.06.b.2 in the Design Manual * . s DM2 Engineering, PLLC William W. Dreitzler, P.E. 1416 Pendergrass Road Sanford, NC 27330 Phone: (919) 818 -2235 bill.dreitzler @yahoo.com Nicholas S. Rightmyer, P.E. P.O. Box 1448 Roanoke Rapids, NC 27870 Phone: (252) 532 -2364 nsrightm @yahoo.com SKIMMER BASIN CALCULATIONS i = 7.0 Project Name: Collymore Project Number: )o= Project Location: Macon, NC Designed by: NSR Date : 4124/2013 # c TAW) 61(10) SA re L:W L W SA pro Mac) V rea D X_1 V pro WL WD 1 0.4 0.33 0.92 300 2 25 12 300.3 0.34 612 3.0 2 624.1 4 0.18 2 0.4 1.00 2.80 910 6 74 12 910 0.39 702 2.0 2 1491 4 0.38 3 0.4 1.50 4.20 1365 6 90 15 1365 0.92 1656 2.0 2 2324 5 0.43 * D1 0.4 0.6 1.79 N/A 20 10 200 0.12 216 1.4 2 227 2.0 ' D2 0.4 o.1 0.28 N/A 20 10 200 0.09 162 1.4 2 227 0.3 = CHECK DAM WITH WEIR Summary of Calculations C = runoff coefficient= weighted average from table 8.03a of the design manual i(10) = average intensity of rainfall in inches per hour based on a ten year storm TA(ac) = drainage area in acres Q(10) = flow into the basin in cubic feet per second based on a ten year storm = C i(10) * A(Ac) SA req = surface area required at design flow in square feet = 325' Q(10) L = proposed length of basin in feet at spillway invert W = proposed width of basin in feet at spillway invert SA pro = surface area provided in square feet = L * W DA(ac) = Disturbed Area in acres V req = volume required in cubic feet =1800 * A(ac) D = Depth of the skimmer basin from bottom of basin to spillway invert X:1 = Proposed sideslope ratio (2:1 min) v ro = proposed volume of the basin in cubic feet = (((L *W) +((L- 2D) *(W- 2D))) /2) *D WL = Length of weir in feet WD = Flow Depth through weir SD = Skimmer size in inches OD = Orifice diameter in inches DT = Dewatering Time in days SD OD DT 1.5 0.5 3.1 1.5 0.75 3.2 1.5 1 2.8 EROSION CONTROL PLANS FOR: ILIv V � �l *4 1 ol 4 z k d FA W1111 11 kyJ 61 W 0 MV% J ILI 0 4 kyl I Fol i CV- A RAW,111 ►_ PROPERTY CORNER O RIGHT OF WAY RAW UTILITY POLE -0- POINT OF HORTIZONTAL INTERSECTION PI TELEPHONE PEDESTAL Ill POINT OF HORIZONTAL CURVATURE PC TRANSMISSION TOWER 0 POINT OF HORIZONTAL TANGENCY PT GATE VALVE H VERTICAL POINT OF INTERSECTION VPI WATER METER 13wM VERTICAL POINT OF CURVATURE VPC FIRE HYDRANT VERTICAL POINT OF TANGENCY VPT MANHOLE Q EDGE OF PAVEMENT EP CLEANOUT • CURB & GUTTER C &G CATCH BASIN ® BACK OF CURB BC DROP INLET ® TOP OF CURB TC YARD INLET Q TOP OF SIDEWALK TS JUNCTION BOX ❑ TOP OF WALL TW HANDICAP 86 REINFORCED CONCRETE PIPE RCP WHEEL CHAIR RAMP (LD POLYVINYL CHLORIDE PIPE PVC SPOT ELEVATION 10000 DUCTILE IRON PIPE DIP SIGN i CORRUGATED METAL PIPE CMP SITE LIGHT HIGH POINT HP ■ i BREAK POINT BP RIGHT OF WAY CENTER LINE UNDERGROUND ELECTRIC LINE OVERHEAD ELECTRIC LINE SANITARY SEWER PIPE STORM DRAIN PIPE WATER LINE GAS LINE TELEPHONE LINE FENCE LINE TREE LINE DRAINAGE FLOW CURB AND GUTTER SPILL CURB AND GUTTER CONCRETE PAVEMENT `.;;;��TT,°!" •' ".'a,,:;'• ASPHALT PAVEMENT : :I NOTE: EXISTING FEATURES ARE SHOWN SI- : -"DED. PROJECT DEVELOPER CLEMENT COLLYMORE BEY 1151 MACON EMBRO ROAD MACON, NC 27551 PHONE: (919) 724 -3194 CONTACT: COLLYMORE BEY NOTE: THIS EROSION CONTROL PLAN IS FOR ROAD CONSTRUCTION ONLY. ALL LOT DEVELOPMENTS WILL REQUIRE A SEPARATE EROSION CONTROL PLAN AND PERMIT o� 0����iiiii�rrrr� . "1011111110". ®g- -1 z -2a"3 ENGINEERS SEAL AND SIGNATURE LOCATION MAP SCALE: NTS ENGINEERING, PLLC 1416 PENDERGRASS ROAD SANFORD, N.C. 27330 PHONE: (919) 818 -2235 P.O. BOX 1448 ROANOKE RAPIDS, NC 27870 PHONE: (252) 532 -2364 3 DAVID 01CHAEL HIGHT JR DB 9�,:- PC 638 WARRE"i COUNTY REGISTRY THEODORE J & ROSALIND STEWART DB 810 PC 33 WARREN COUNTY REGISTRY PAMELA E63YRD D nn r �q PG B 652 PC 147 WARREN COUNTY REGIS-RY ALICE WILLIAMS DB 492 PG 23 WARREN COUNTY REGISTRY -4 co ev CEDAR CREEK LAND CO, LLC DB 795 PG 473 WARREN COUNTY REGISTRY CLEMEh'7 COLLYMORE BEY DB 70P, PC 574 WARRE', COUNTY REGISTRY WILFRED A & JOYCE M OJO DB 864 PC 533 WARREN COUNTY REGISTRY 41P lk 43 4v- SAMUEL & LUCINDA R SULLIVAN DB 763 PC 858 WARREN COUNTY REGISTRY d 'v IQ ARTHUR L STEWART & OTHERS DB 630 PC 293 WARREN COUNTY REGISTRY/ CHERYL BELL DB 870 PG 549 WARREN COUNTY RE61/STRY THOMAS HUDGINS UNLISTED INFO Z z Z AZZIDIN & KHADIJA TAHROUC HOUF DB 879 PG 841 WARREN COUNTY REGISTRY CLEMENT COLLYMORE BEY DB 873 PG 48 WARREN COUNTY REGISTRY II CLEMENT COLLYMORE BEY DB 873 PC 48 WARREN COUNTY REGISTRY CLEMENT COLLYMORE BEY DB 873 PC 48 WARREN COUNTY REGISTF\1" ---- -- — -------- CLEMENT COLLYMORE BEY DB 873 PG 48 &AVREN--C OUNTY-RECISTRY CLEMENT COLLYMORE BEY DB 873 PG 48 WARREN COUNTY REGISTRY #. Z CLEMENT COLLYMORE BEY DB 873 PC 48 WARREN COUNTY REGISTRY CLEMENT COLLYMORE BEY DB 873 PG 48 WARREN COUNTY REGISTRY JAMES B JR & OLIVIA H BANKS DB 876 PC 291 WARREN COUNTY REGISTRY GENE FAULCON DB 686 PG 423 WARREN COUNTY REGISTRY Z 1. LOCATION OF PARCEL LINES SHOWN IS APPROXIMATE. DATA WAS DIGITIZED FROM A MAP DOWNLOADED FROM THE WARREN COUNTY GIS WEBSITE. HEIRS OF MRS M T HARRIS C/O ANDREA GOODE DB 136 PC 474 WARREN COUNTY REGISTRY Rt, FFLIS T WARWICK HEIRS C/ 0 JUDY W PRITCHETT DE 482 PC 78 WARREN COUNTY REGISTRY NUF:1SHA V JONES DB 373 PC 101 WARREN COUNTY REGISTRY AP 7URNER JR 1B 705 PG 264 WARREN COUNTY REGISTRE I 1416 PENDERGRASS ROAD SANFORD, N.C. 27330 PHONE: (919) 818-2235 P.O. BOX 1448 ROANOKE RAPIDS, NC 27870 PHONE: (252) 532-2364 \\����o��N CARO� 62 IN SCOT 0/11111110\ og-zz- W05 ENGINEERS SEAL AND SIGNATURE • a n • • • I * PRELIMINARY PLANS * NorFoR Tm�hw;IA REVISIONS NO. BY I DATE DESCRIPTION o xx xxx MM -DD xxx = W -.Tixyivj ilk I NUNN 90=9K12-0 PROJECT NO: START DATE: SCALE: SHEET: f NS NSR WWD XXXXX 02-10-2013 1" =80' C-2 OF 7 .r— LL EXISTINN G 18" RCP/ -0 I j L__ �'CT— ; — t --ZZZZ=- - ----- �7 81 6' SHOULDER 18' ROADWAY 6' SHOULDER 5' DITCH 7' 1 FT 1/4" Fr 1/4" FT 1 FT 2:1 1.5:1 MAX 2:1 TYPICAL SECTION (50' R/W) INIV 34k.0 114V 7, +w- 7+DO 'W- JU -- -- - - - - -- -- - - - - -- -�,— — / ; ' - - -: , —/ / ; / / k / � � � ENGINEERING, PLLC / 1) 1416 PENDERGRASS ROAD 7? / / "// / SANFORD, N.C. 27330 REMOVE 40 LF 36" CM /P A REPLACE /WITH 24 L�A" RCP 30., PHONE: (919) 818-2235 yv/= 348?8 INV = 363,3 P.O. BOX 1448 ACCES9 PATH ROANOKE RAPIDS, NC 27870 PHONE: (252) 532-2364 oo INV=/ 47.1/ o f- 14 A 5 6 PROPOSED 0',D-MN 'NT ��\A CARO A G E I ME REMOVE 3&LF 1 56 IF 15" RCP @ 3.6�.- 5" HDPS _ -1 --1 - / � = O-t-+ "I ", "I, ---_ --1 1\ -- -- — — REr�&VE 0 FW' \ \ REP LAC WIT d LF 48" b CENTER T .0;911 '-.-JUST T HE 'x \ \ \ ` \ 1 ~ ` \ \ — — P%pjlN THE PROP D_ROADWAY 1. ROADWAY HAS BEEN ROUGHED IN. GRADES SHOWN ARE RECOMMENDED REVISIONS. 2. PIPE INVERTS SHOWN ARE APPROXIMATE. INVERTS SHALL BE ADJUSTED SO THAT 20% OF THE PIPE DIAMETER IS BELOW THE NATIVE STREAMBED ELEVATION. 3. DITCHES SHOULD BE LINED WITH THE NORTH AMERICAN GREEN PRODUCT SPECIFIED IN THE DITCH LINER DETAILS LIST. DITCH LINER DETAILS DESIGNED BY: NSR ROAD SIDE: BEGIN WWD TE MP. 1-lit-k TRM L I N E R Main L 0+00 1 +50 Fescue I NAG 1375 N/A Main L 1+50 2+60 i Fescue NAG S75 N/A Main L 2+50 i 6+76 Fescue I NAG S16 N/A Main L 5+75 j 6+50 i Fescue I NAG C125 N/A Main L 6+5 0 'CuLvi Fescuel NAG 0125 N/A Main L CULV 1 1 8+60 i Fescue NJA NAG 0350 Main L 8+50 Ii CULV 2 Fescue I NAG 0125 N/A Main L CULV 2' 13+5 Fescue NAG S7 N/A Main L 13+5 i 14+25 Fescue NAG 0125 N/A ------------ Main L 14+25 i 15+00 Fescue NIA NAG 0350 Main L 15+00 l CULV' 3 Fescual NIA NAG 0360 Main R 0+00 1 1+60 Fescue NAG S76 N/A Main R 1+50 i 2+60 Fescue NAG S76 WA Main R 2+50 5+75 Fescue NAG SC150 WA Main R 5+75 1 13+60 j Fescue NAG 0125 N/A Main R 5+60 1 CULV ljFescmoj NAGC125 NSA KA 0; m In e'l III %I I I -I I Nif SEA '"11111101", og - zz-20 (3 ENGINEERS SEAL AND SIGNATURE • .. * PRELININA R Y PLA NS * NOTFOR REVISIONS NO. BY DATE DESCRIPTION XX XXX MM-DD xxx DRAWN BY: NSR DESIGNED BY: NSR z WWD PROJECT NO: 2013-01 START DATE: 02-10-2013 3 1" = 60' 0 1% Uj 019 ge CA 2 • z - LL 0 w CL 0 LU < • z 02 z ry z 00 40 z LU C9 * PRELININA R Y PLA NS * NOTFOR REVISIONS NO. BY DATE DESCRIPTION XX XXX MM-DD xxx DRAWN BY: NSR DESIGNED BY: NSR CHECKED BY: WWD PROJECT NO: 2013-01 START DATE: 02-10-2013 SCALE: 1" = 60' M h$ rL 1. ROADWAY HAS BEEN ROUGHED IN. GRADES SHOWN ARE RECOMMENDED REVISIONS. 3, DITCHES SHOULD BE LINED WITH THE NORTH AMERICAN GREEN PRODUCT SPECIFIED IN THE DITCH LINER DETAILS LIST. 12' SHOULDER 18' ROADWAY SHOULDER 5' DITCH 7' 1- / FT 1/4" / FT 1/4" / FT 1- 1 / FT 1.5:1 MAX o I� 3:1 2:1 TYPICAL SECTION (50' R /W) Z/ / / m m/ n / / /9 y f I � � I 1 l \ o f; 390 380 370 360 / I DITCH LINER DETAILS 1 0►AD151DE' BEGIN END ' F jifk. P. LINERTRrA LINER Main L a_. ' 0+00 ! 1 +50 1 Fescue I _._.- ._..._ NAG S75 _.__. N/A Main L 1` 1+50 ( 2+50 Fescue NAG S75 ------------- N/A Main L 2+60 6 +75 Fescue ' NAG 1375 WA Main L 5 +7 5 6+60 FescueT NAG 0125 NSA Main a L 6+60 CULL 1 ; Fescue i NAG 0125 NSA Mam s L "CUL1f 11 8-60 'Fescue! NIA I�AG C350 Main L - 8+60 CULL' 2 j Fescue 1 NAG 0126 N /A _ Main L J CULL!2 13+5 1 Fescue, NAG S75 N/A Main L 13+5 j 14 +25 ! Fescue I NAG 0125 N/A Main L 14 +25 15+00 Fescue i NJA NAG 0350 —Main f L 16+00 1 CULV 3 Fescue i Nib, VAC 0350 Main R 3w 0+00 1-+60 ; Fescue, NAG S76 _._._. _NSA y Main R 1+50 2+60 ; Fescue! NAG S75 N/A + i o t ale z R ' 2+50 c 5 +75 Fescue ! NAG SC150 NSA 1aln c R 5 +75 6+50 Fescue NAG 0125 NSA Main { R 6+50 10 U LV 1 j Fescue # NAG 0125 N/A Main �i R CLJLV 1 CULL' 3' N0 � DITCH Side L 0 ! 1+50 I Fescue I NAG 0125 WA Side 1 L 1 1+50 i 2+50 Fescue NAG 0125 WA Side L 2+50 i END i Fescue NAG S75 N/A _- Side k R �j CULV 21 1-x50 1 Fescue ; NAG 0125 N/A Side 11 R i 1+50 2+50 Fescue ; NAG 0125 N/A Side R 2+50 END ; Fescue i NAG 1375 � _...N /A 1. ROADWAY HAS BEEN ROUGHED IN. GRADES SHOWN ARE RECOMMENDED REVISIONS. 3, DITCHES SHOULD BE LINED WITH THE NORTH AMERICAN GREEN PRODUCT SPECIFIED IN THE DITCH LINER DETAILS LIST. 12' SHOULDER 18' ROADWAY SHOULDER 5' DITCH 7' 1- / FT 1/4" / FT 1/4" / FT 1- 1 / FT 1.5:1 MAX o I� 3:1 2:1 TYPICAL SECTION (50' R /W) Z/ / / m m/ n / / /9 y f I � � I 1 l \ o f; 390 380 370 360 / I 150.000VC m 00 i a0 Uj 00 m ENGINEERING, PLLC 1416 PENDERGRASS ROAD SANFORD, N.C. 27330 PHONE: (919) 818 -2235 P.O. BOX 1448 ROANOKE RAPIDS, NC 27870 PHONE: (252) 532 -2364 �,N CARo� %,, _ ®CEA / 3 43 '0/111111w\ 06,_Z-Z-2,01 j ENGINEERS SEAL AND SIGNATURE � r • • • • * PRELIMINARY PLANS HOT FOR CONSTRUCTION i NO. I BY I DATE DESCRIPTION N XX XXX MM -DD XXX cc a i= 'C a DRAWN BY: NSR DESIGNED BY: NSR 60 0 60 120 30 CHECKED BY: WWD PROJECT NO: 2013 -01 START DATE: 02 -10 -2013 Scale: 1 " = 60' SCALE: 1" = 60' 1 / , /1 ' <l o CD + iT + 00 3 +00 3+ 3 — \ I _- oq Z 150.000VC m 00 i a0 Uj 00 m ENGINEERING, PLLC 1416 PENDERGRASS ROAD SANFORD, N.C. 27330 PHONE: (919) 818 -2235 P.O. BOX 1448 ROANOKE RAPIDS, NC 27870 PHONE: (252) 532 -2364 �,N CARo� %,, _ ®CEA / 3 43 '0/111111w\ 06,_Z-Z-2,01 j ENGINEERS SEAL AND SIGNATURE � r • • • • * PRELIMINARY PLANS HOT FOR CONSTRUCTION i NO. I BY I DATE DESCRIPTION N XX XXX MM -DD XXX cc a i= 'C a DRAWN BY: NSR DESIGNED BY: NSR 60 0 60 120 30 CHECKED BY: WWD PROJECT NO: 2013 -01 START DATE: 02 -10 -2013 Scale: 1 " = 60' SCALE: 1" = 60' r , - ; ,-- '- "' � \ \ \ �` '; 1, � , '\ \ \ „ \ ,\ \ , \ � \ \ ` _ -_ / /, / /,' /, � � . , �• . � j j l( I I I� if � I \ � \ \ \ `--- --t- / / I 1 � I � I I '� ' I � � \ .� � � LIMIT§ OF DISTYRBANC)a A 1 1 \ V \ // cyl- �I 1 I' 1 �, •� ` � v � � � v \ � - � , � , , 1 , i � � , \ V v v � n f I + j } I \ V A v v v �K\IM\�ER SKIMMER BASIN 3 \ \ A I _ / / / / / � / C C CAM CHECK DAMS~ / / 0 20'x100' / / LIMIT OF DISTURBANCE 1 ` \ \ CHECK DAM ` \ \ \ - CHEC DAM / CONSTRUCTION � � - - \ � - / ! ENTRANCE - _ e - -- - - - - - - - �"- / - / / / / / - - 1 _ -'- _.. -T _ �" -�--, \ \ a.."a /I l / SI�tT FE(�lCI G / -- - - - - \ -� Q \ 00 1 x 20'L x1 / � 5 - (� 6 +00 3 +00 4 +00 5 +00 \ 6+ 0 7+ p -+ 0 11 00 12 0 P P INLET R RA U LET /PROT CTIQN / - -O �}� ,.._ _ � �� � � �-- � � \PR EC ST RA E'AR A/ �` /E / CHEC DAMS \ `, C AS 1 R RA� ) j � � \ '� °1, �a/r. al i 40'n -� Gr -d oa a?w ai ai M.a G•r' - -ai a•i'- aiCr -ai `Qi+r� Ci +ai ai C•i.•oa �iYaa G"•al 4/'-. al i / 1 I \ CHECKlbAM N\C\ � ER BASIN 1 \ �IMITS OF DISTU B N SILT FENCIN� \, / i \ � \ \ 1 Ri ROTECTiON C D M 12' x 32' x 2.0 \\ i ASS 1 RIPRA\P vv, CONSTRUCTION SEQUENCE 1. OBTAIN GRADING PERMIT. 2. CONTRACTOR SHALL CALL NCDENR AT (919) 791 -4,270 PRIOR TO CONSTRUCTION BEGINNING. 3. PERFORM SELF- INSPECTIONS AND KEEP RECORDS AS REQUIRED BY NCDENR SELF INSPECTION PROGRAM. INFORMATION AND INSPECTION FORMS MAY BE FCijND AT http://www. dlr. enr. state. nc. us/pages/sedimentation new. hfml , PHASE 1 - INSTALLATION OF DEVICES 4. STAKE CONSTRUCTION LIMITS ON PROPERTY. 5. CLEAR FOR EROSION CONTROL DEVICES. DISTURB ONLY WHAT IS NECESSARY FOR CONSTRUCTING EROSION CONTROL DEVICES. 6. INSTALL CONSTRUCTION ENTRANCE. 7. INSTALL SKIMMER BASIN #1 - #3, AND TEMPORARY LIVERSIONS #1 & #2. INSTALL LINERS AND SEED BASINS AND DIVERSIONS. 8. RE -GRADE THE RIGHT ROADSIDE DITCH BETWEEN STATION 0 +00 AND CULVERT 1. INSTALL LINER IMMEDIATELY. 9. INSTALL SILT FENCING IN THE AREAS SHOWN ON TLE PLAN. 10. RE -GRADE ALL REMAINING DITCHES AS NEEDED APB D INSTALL LINERS IMMEDIATELY. 11. PERFORM A SELF INSPECTION. IF ACCEPTABLE, PFOCEED TO PHASE 2. PHASE 2 - ROUGH GRADING 12. BEGIN ROUGH GRADING THE SITE. 13. REPLACE CULVERTS AS SHOWN ON THE PLANS. 14. REMOVE ACCUMULATED SEDIMENT FROM THE STREAM AND WETLAND AREAS WITH SHOVELS AND BUCKETS TO NATIVE SOILS AND DISCARD THE SEDIMENT INTO ONE OF THE SKIMMER BASINS. 15. MAINTAIN EROSION CONTROL FEATURES AS NEED =D. SEE SHEET C -6 FOR STABILIZATION TIMEFRAMES. ANY TRENCHES MUST BE BACKFILLED DAILY. 16. THE CONTRACTOR SHOULD MAKE EVERY EFFORT -0 KEEP SEDIMENT AND /OR MUD OFF OF THE ADJACENT ROADWAYS. REMOVE ANY MATERIAL FROM THE ASPHALT IMMEDIATELY. 13. PERFORM A SELF INSPECTION. IF ACCEPTABLE, PROCEED TO PHASE 3. PHASE 3 - FINAL GRADING AND PAVING 14. CONTINUE GRADING THE SITE. 15. ONCE FINISHED GRADE IS ESTABLISHED, PROVIS10 "IS FOR PERMANENT GROUND COVER MUST BE ACCOMPLISHED WITHIN THE STABILIZATION TIMEFFAME SHOWN ON SHEET C -6. 16. PERFORM A SELF INSPECTION. IF ACCEPTABLE, PF:,OCEED TO PHASE 4. PHASE 4 - FINAL STABILIZATION / REMOVAL OF DEVICES 17. MAINTAIN EROSION CONTROL DEVICES WHILE VEG=ETATION IS BEING ESTABLISHED, 18. AFTER THE ENTIRE SITE IS COMPLETELY STABILIZED, PERFORM A SELF INSPECTION. IF ACCEPTABLE, REMOVE ALL TEMPORARY EROSION CONTROL DEV..ES AND COMPLETE ANY NECESSARY GRADING IN THE LOCATIONS OF THE REMOVED DEVICES. PROVIDE = ERMANENT GROUNDCOVER FOR ANY RESULTING DENUDED AREAS. SKIMMER BASIN INFORMATION NO. BOTTOM EL. (FT) DIMENSIONS @ BOTTOM (F) WEIR CREST EL.. (F� DIMENSIONS @ WEIR EL. (� WEIR LENGTH (� TOP OF BERM R (� TOP OF BERM INSIDE DIM. (� SKIMMER SIZE (IN) ORIFICE DIAMETER (IN) 1 346.8 12.5 X 0.3 349.8 24.5 X 12.3 4 351.0 30.5 X 18.3 1.5 0.5 2 1 347.6 165.9 X 4.3 349.6 1 73.9 X 12.3 1 4 351.0 18.3 X 79.9 1 1.5 1 0.8 3 1 347.6 1825 X 7.1 349.6 90.5 X 15.1 1 5 1 351.0 21.1 X 96.5 1 1.5 1 1.0 1. LIMIT OF DISTURBANCE= 2.7 + / -AC 2. THIS EROSION CONTROL PLAN IS FOR ROAD CONSTRUCTION ONLY. ALL LOT DEVELOPMENTS WILL REQUIREA SEPARATE EROSION CONTROL PLAN AND PERMIT. . 1. L .. Y .-_ . . . - . l- V . ­11 . SILT FENCE SF INLET PROTECTION TEMPORARY DIVERSION DITCH TD LIMIT OF DISTURBANCE CHECK DAM ENGINEERING, PLLC 1416 PENDERGRASS ROAD SANFORD, N.C. 27330 PHONE: (919) 818 -2235 P.O. BOX 1448 ROANOKE RAPIDS, NC 27870 PHONE: (252) 532 -2364 ,V� CAROIi�',% �Q�oFESSio, �S %, COT1 R \\1 �g•_Z2P ENGINEERS SEAL AND SIGNATURE • r • • • • • I. * PRELIN /NARY PLANS NOTFOR!1 REVISIONS NO. BY DATE DESCRIPTION XX XXX MM -DD XXX DRAWN BY: DESIGNED BY: CHECKED BY: PROJECT NO: START DATE: SCALE: SHEET: s NSR NSR WWD XXXXX 02 -10 -2013 1" =60' V5OF1 M N Co Co c a tD it DITCH LINER DETAILS 1� AV ICE, BEGIN i RA83 TEMP. LINER�TRM LINER Blain L 0+00 i 1.60 Fescue j NAG S75 N/A Main 1 +50 2450 f" Fescue NAB S76_.. i N/A ' ..._L_ Main L J...._. 2 +6 0 -...._ 5 +76 Fescue 1 NAG S76 _^ I N/A Main I L 8 +78 ; 6+50 Fescue I NAG C128 N/A Main r L__ 6+50 OUL 1, Fescue l NAG C128 � NSA Main ; L i CU 1 8-60 Fescue ! NJA i NAG 0350 -Main ^ L 8-E50 ; OULV 2' Fescue � NAG C128 WA . Main x L 13+3 ! Fescue NAG 376 WA Main L ? 13+5 1 14 +25 Fescue ; NAG C123 i N/A µ Main I, L 14 +25 � 18+00 Fescue ! NJA NAG C350 Main $ L ;16+00 ^� GULF 31 Fescue NJA NAG 0350 main R 0+00 1+50 Fescue ; NAG S76 1 WA Main R 1 +50 � 2460 , 1 Fescue NAG S76 � NSA gain ; R 2-50 ; +76 Fescue NAB SC160 NSA Main R � +76 � 6+60 I Fescue i NAG C125 tvlalin R 64-50 t CULV I Fescue ; NAG C125 i N/A Main R CtLUJL1MGULF 3 F­k) DITOH Side L _ 0 1.50 Fescue NAG C12-5 N/A Side L 1+50 2+60 Fescue i NAG C126 � N/A Side L z 2-50 , END Fescue NAG S75I N/A Side R CULV 2 1+50 , Fescue NAG C128 N/A Side R 4 1+50 I 1 2-60 ? I Fescue, NAG C128 � WA Side R 2-150 END ? Fescue NAG 376 1 N/A 1. LIMIT OF DISTURBANCE= 2.7 + / -AC 2. THIS EROSION CONTROL PLAN IS FOR ROAD CONSTRUCTION ONLY. ALL LOT DEVELOPMENTS WILL REQUIREA SEPARATE EROSION CONTROL PLAN AND PERMIT. . 1. L .. Y .-_ . . . - . l- V . ­11 . SILT FENCE SF INLET PROTECTION TEMPORARY DIVERSION DITCH TD LIMIT OF DISTURBANCE CHECK DAM ENGINEERING, PLLC 1416 PENDERGRASS ROAD SANFORD, N.C. 27330 PHONE: (919) 818 -2235 P.O. BOX 1448 ROANOKE RAPIDS, NC 27870 PHONE: (252) 532 -2364 ,V� CAROIi�',% �Q�oFESSio, �S %, COT1 R \\1 �g•_Z2P ENGINEERS SEAL AND SIGNATURE • r • • • • • I. * PRELIN /NARY PLANS NOTFOR!1 REVISIONS NO. BY DATE DESCRIPTION XX XXX MM -DD XXX DRAWN BY: DESIGNED BY: CHECKED BY: PROJECT NO: START DATE: SCALE: SHEET: s NSR NSR WWD XXXXX 02 -10 -2013 1" =60' V5OF1 M N Co Co c a tD it PERMANENT SEEDING PROVIDE PERMANENT SEEDING TO ALL DENUDED AREAS THAT WILL NOT BE COVERED BY PAVING, BUILDINGS, OR OTHER LANDSCAPING WITHIN THE TIMEFRAME SPECIFIED ON THE STABILIZATION TIMEFRAME TABLE. COMPLETE GRADING BEFORE PREPARING SEEDBEDS. IF SOILS BECOME COMPACTEC DURING GRADING, LOOSEN THEM TO A DEPTH OF 6.8 INCHES. SEEDBED REQUIREMENTS: THE SOIL SHOULD MEET THE FOLLOWING MINIMUM CRITERIA FOR VEGETATION :ESTABLISHMENT: • ENOUGH FINE - GRAINED (SILT AND CLAY) MATERIAL TO MAINTAIN ADEQUATE MOISTURE AND NUTRIENT SUPPLY (AVAILABLE WATER CAPACITY OF AT LEAST 0.05 INCHES OF WATER TO 1 INCH OF SOIL • SUFFICIENT PORE SPACE TO PERMIT ROOT PENETRATION. • SUFFICIENT DEPTH OF SOIL TO PROVIDE AN ADEQUATE ROOT ZONE. THE DEPTH OF ROCK OR IMPERMEABLE LAYERS SUCH AS HARDPANS SHOULD BE 12 INCHES OR MORE, EXCEPT ON SLOPES STEEPER THAN 2:1 WHERE THE ADDITION OF SOIL IS NOT FEASIBLE. • A FAVORABLE PH RANGE FOR PLANT GROWTH, USUALLY 6.0 -6.5. • NO LARGE ROOTS, BRANCHES, STONES, LARGE CLODS OF EARTH, AND TFSH. CLODS AND STONES MAY BE LEFT ON SLOPES STEEPER THAN 3:1 IF THEY ARE TO BE HYDROSEEDED. IF THE ABOVE CRITERIA CANNOT BE MET, SPECIAL SOIL CONDITIONERS OR TOPSOIL MAY BE APPLIED. SEEDBED PREPARATION: LIME: APPLY LIME ACCORDING TO SOIL TEST RECOMMENDATIONS. IF THE SOIL. PH IS NOT KNOWN, FOLLOW RATES ON THE SEEDING SPEC TABLE. FERTILIZER: FERTILIZE ACCORDING TO SOIL TEST RECOMMENDATIONS. WHERE SOIL TESTS ARE NOT AVAILABLE, FOLLOW RATES ON THE SEEDING SPEC TABLE. SURFACE ROUGHENING: IF AREAS TO BE SEEDED BECOME HARDENED, SEALED, OR CRUSTED, LOOSEN IT JUST PRIOR TO SEEDING BY DISKING, RAKING, HARROWING OR OTHER SUITABLE METHODS. GROOVE OR F RROW SLOPES STEEPER THAN 3:1 ON THE CONTOUR BEFORE SEEDING. PLANT SELECTION: SELECT THE APPROPRIATE SPECIES BASED ON THE PLANTING SEASON, SOIL TYPE, SLOPES, AND LAND USES. SEE SEEDING SPEC TABLES IN PLANS FOR RECOMMENDED PERMANENT SEEDING MIXTURE. SEEDING: USE CERTIFIED SEED (INSPECTED BY THE NORTH CAROLINA CROP IMPROVEMENT ASSOCIATION). APPLY SEED WITH A BROADCAST SEEDER, DRILL, CULTIPACKER SEEDER, OR H`DROSEEDER ON A FIRM, FRIABLE SEEDBED. USE SEEDING RATES GIVEN IN TABLES, WHEN USING A DRILL OR CULTIPACKER SEEDER, SMALL GRAINS SHOULD BE PLANTED NO MORE THAN ONE INCH DEEP AND GRASSES AND LEGUMES ON MORE THAN Yz INCH. WHEN BROADCAST SEEDING, SUBDIVIDE AREA INTO WORKABLE SECTIONS AND DETERMINE THE AMOUNT OF SEED NEEDED FOR EACH SECTION. APPLY ONE -HALF THE SEED WHILE MOVING BACK AND FORTH ACROSS THE AREA AND APPLY THE REMAINING SEED IN THE SAME MANNER BUT AT RIGHT ANGLES TO THE FIRST PASS. COVER SEED BY RAKING OR CHAIN DRAGGING, AND THEN LIGHTLY FIRM WITH A ROLLER OR CULTIPACKER. MULCH AREAS IMMEDIATELY AFTER SEEDING IN ACCORDANCE WITH RATES GIVEN IN TABLES. USE A MINIMUM RATE OF 4,000 LB /ACRE. HYDROSEEDING: SURFACE ROUGHENING IS REQUIRED. FINE SEEDBED PREPARATION IS NOT NB' ESSARY. RATE OF WOOD FIBER APPLICATION SHOULD BE AT LEAST 4,000 -6,000 LB /ACRE, APPLY LEGUME INOCULANTS AT FOUR TIMES THE RECOMMENDED RATE WHEN ADDING INOCULANT TO HYDROSEEDER SLURRY. APPLY LIME IN DRY FROM. IF USING PULL BEHIND METHOD, PROVIDE 2 APPLICATIONS. THE FIRST WITH 1/3 OF THE MULCH AND ALL SEED AND INOCCULANT AND FERTILIZER. THE SECOND APPLICATION WITH 2/3 OF THE MULCH RATE. IF USING THE TOWER METHOD, PROVIDE 2 APPLICATIONS, THE FIRST WITH 1/3 OF THE MULCH AND ALL SEED AND INOCCULANT. THE SECOND WITH 2/3 THE MULCH RATE IN OPPOSING DIRECTION OF THE FIRST PASS. IRRIGATION: IRRIGATE DURING DRY PERIODS OR TO SPEED DEVELOPMENT OF FULL COVER, MAINTENANCE: IF STAND IS INADEQUATE, RE- EVALUATE PLANT CHOICE AND QUANTITIES OF LINE AND FERTILIZER. REESTABLISH THE STAND AFTER SEEDBED PREPARATION OR OVER -SEED THE STAND. CONSIDER SEEDING TEMPORARY, ANNUAL SPECIES IF THE TIME OF YEAR IS NOT APPROPRIATE FOR PERMANENT SEEDING. Table 6.10a Seeding mixture DESIGNED BY: Seeding mixture Temporary Seeding Species Rate ( lblacre ) Recornm&n dations for Fall Recommendations for Late Rye (grain) 120 02 -10 -2013 Winter and Early Spring Annuai lespedeza (Kobe in Mountains —Aug. 15 - Dec. 15 Piedmont and Coastal Plain, Coastal Plain and Piedmont —Aug. 15 - Dec. 30 Korean in Mountains) 50 Soil amendments Omit annual lespedeza when duration of temporary cover is not 4o Follow soil tests or apply 2,000 lb/acre ground agricultural limestone extend beyond June. and 1,000 lb/acre 10 -10 -10 fertilizer. Seeding dates Mulch Mountains —Above 2500 feet: Feb. 15 - May 15 Apply 4,000 lblacre straw, Anchor straw by tacking with asphalt, netting, Below 2500 feet: Feb. 1= May 1 or a mulch anchoring teal. A disk with blades set nearly straight can be Piedmont —Jan. 1'- May 1 used as a mulch anchoring tool. Coastal Plain —Dec. 1 -Apr. 15 Maintenance Soil amendments Repair and refertilize damaged areas immediately. Topdress with 50 I Follow recommendations of soil tests or apply 2,000 lb/acre grourd lblacre of nitrogen in March, I f it is necessary to extent temporary agricultural limestone and 750 lblacre 10 -10 -10 fertilizer. cover beyond June 15, overseed with 50 lblacre Kobe (Piedmont and Mulch Coastal Plain) or Korean (Mountains) lespedeza in late Februa ry or Apply 4,000 Ib /acre straw. Anchor straw by tacking w i th asphalt, n t ti-G early March. r or a mulch anchoring tool. A disk with blades set hearty straight can n- .. used as a' mulch anchoring tool. Maintenance Refertilize if growth is not fully adequate. Reseed, refertilize and muHm immediately following erosion or other damage. TEMPORARY SEEDING PROVIDE TEMPORARY SEEDING TO ALL DENUDED AREAS THAT WILL NOT BE BROUGHT TO FINAL GRADE WITHIN THE TIMEFRAME SPECIFIED IN THE TABLE BELOW. COMPLETE GRADING BEFORE PREPARING SEEDIi�iEDS. IF SOILS BECOME COMPACTED DURING GRADING, LOOSEN THEM TO A DEPTH OF 6 -8 INCHES. SEEDBED PREPARATION: LIME: APPLY LIME ACCORDING TO SOIL T,:-::ST RECOMMENDATIONS. IF THE SOIL PH IS NOT KNOWN, APPLY AT A RATE OF 1 TO 1 Y TONS PER ACRE ON COARSE - TEXTURED SOILS AND 2 -3 TONS PER ACRE OF FINE - TEXTURED SOILS. APPLY LIME UNIFORMLY AND INCORPORATE INTO THE TOP 4 -6 INCHES OF SOIL, SOILS WITH PH'IIGHER THAN 6 DO NOT NEED LIME. FERTILIZER: FERTILIZE ACCORDING TO SOIL TEST RECOMMENDATIONS, WHERE SOIL TESTS ARE NOT AVAILABLE, APPLY A 10 -10 -10 GRADE FERTILIZER AT 700 -1,000 LB /ACRE. INCOF.:PORATE FERTILIZER INTO THE TOP 4-6 INCHES OF SOIL. IF A HYDRAULIC SEEDER IS USED, DO NOT MIX SEED AND FERTILIZER MORE THAN 3G MINUTES BEFORE APPLICATION. SURFACE ROUGHENING: IF AREAS TO BE SEEDED BECOME HARDENED, SEALED, OR CRUSTED, LOOSEN IT JUST PRIOR TO SEEDING BY DISKING, RAKING, HARROWING OR OTHER SUITABLE METHODS. GROOVE OR FURROW SLOPES STEEPER THAN 3:1 ON THE CONTOUR BEFORE SEEDING. PLANT SELECTION: SELECT THE APPROPRIATE SPECIES BASTED ON THE PLANTING SEASON. SEEDING: APPLY SEED WITH A BROADCAST SEEDER, DRILL, CULTIPACKER SEEDER, OR HYDROSEEDER, USE SEEDING RATES GIVEN IN TABLES, BROADCAST SEEDING AND HYDROSEEDII`IG IS ACCEPTABLE ON STEEP SLOPES WHERE EQUIPMENT CANNOT BE DRIVEN, HAND BROADCASTING IS NOT RECOMMENDED. SMALL GRAINS SHOULD BE PLANTED NO MORE THAN ONE INCH DEEP AND GRASSES AND LEGUMES ON MORE THAN % INCH. BROADCAST SEED MUST BE COVERED BY RAKING OR CHAIR DRAGGING, AND THEN LIGHTLY FIRMED WITH A ROLLER OR CULTIPACKER. HYDROSEEDED MIXTURES SHOULD NOT INCLUDE A WOOD FIBER MULCH. MULCHING: MULCHING IS REQUIRED UNDER THE FOLLC`'VING CONDITIONS: • SEEDING IN FALL (WOOD FIBER MUi -:HES NOT ACCEPTABLE) • SLOPES STEEPER THAN 3:1 • EXCESSIVELY HOT OR DRY WEATHER • ADVERSE SOILS (SHALLOW, ROCKY, OR HIGH IN CLAY OR SAND) • AREAS RECEIVING CONCENTRATED FLOW. FOR CONCENTRATED FLOW AREAS (DITG.c1ES, CHANNELS, SWALES, ETC.) ANCHOR MULCH WITH NETTING. MAINTENANCE: CONTRACTOR TO MONITOR GRASS ESTABiLISHMENT. PROMPTLY RESEEED AREAS WHERE A HEALTHY, DENSE GROWTH DOES NOT ESTABLISH. CONTRACTOR MAY NEED TO PROVIDE NETTING OR TEMPORARY LINERS TO AREAS WHERE GRASS CANNOT BE ESTABLISHED DUE TO EROSION. NPDES Stormwater Discharge Permit for , %'onstruction Actl Aties (NCG01) SITE AREA DES,SRIPTION NODENRIDivision of Water Quality STABILIZATION ( TiMEFRAME EXCEPTIONS @) } Perimeter dikes, swales, ditches, slopes 1 7 days I None 1 • High Quality Water ;aHCIWj Zones 7 days None Zones NSlopes steeper than 3:1 Table 6.10b Seeding mixture Temporary Seeding Species Rate (lblacre) Recommendations for German millet 40 summer In the Piedmont and Mountains, a small- stemmed Sudangrass may be substituted at a rate of 50 Ibiacre. Seeding dates Mountains ---May 15 -Aug. 15 i Piedmont --May 1 -Aug. 15 Coastal Plain- --Apr. 15 -Aug. 15 Sail amendments Follow recommendations of soil tests or apply 2,000 lblacre ground agricultural Iimestane and 7601blacre W -10 -10 fertilizer. Mulch Appty4,000Ib /acre straw. Anchor straw by tacking with asphalt, netting, ora mulch anchorin g to ol. A i k rth bla d es set nearly straight can be used as a mulch anchoring tool. Maintenance Refertilize if growth is not fully adequate. Reseed, refertilize and mulch immediately following erosion or other damage. 7 days If slopes are 10' or less in length and are not steeper than 2:1, 14 days are allowed: Slopes 3:1 or flatten 1 14 days I 7 days for slopes greater than 50' in length. All other areas with slopes flatter than 4:1 14 days I None, except for perimeters and HQW Zones. Table 6.10c Seeding mixture DESIGNED BY: Ter :rorary Seeding Species Rate (lblacre) species, Rate (ib /acre) Recornm&n dations for Fall Rye (grain) 120 Blend of two turf-type tall 02 -10 -2013 Seeding dates fescues (90 %) and two or Mountains —Aug. 15 - Dec. 15 more improved Kentucky Coastal Plain and Piedmont —Aug. 15 - Dec. 30 bluegrass varieties (10 0/0) 200 -250 Soil amendments Follow soil tests or apply 2,000 lb/acre ground agricultural limestone Seeding dates and 1,000 lb/acre 10 -10 -10 fertilizer. Hest' Possible Mulch Fall: Aug. 25 - Sept. 15 Aug. 20 - Oct. 25 Apply 4,000 lblacre straw, Anchor straw by tacking with asphalt, netting, Winter: Feb. 1 - Mar. 31 or a mulch anchoring teal. A disk with blades set nearly straight can be For quality turf, avoid spring seeding.; Where grading Is completed used as a mulch anchoring tool. during late winter or spring, an alternative is to seed 30 lblacre Kobe Maintenance lespedeza, keep mowed, prepare seedbed, and seed a permanent Repair and refertilize damaged areas immediately. Topdress with 50 I mixture in early fall. lblacre of nitrogen in March, I f it is necessary to extent temporary Soil amendments cover beyond June 15, overseed with 50 lblacre Kobe (Piedmont and Apply lime and fertilizer according to soil tests, or apply 4,000 Ib /acre Coastal Plain) or Korean (Mountains) lespedeza in late Februa ry or ground agricultural limestone and 1,000 lblacre 10 -10 -10 fertilizer. early March. r Mulch .. MAINTENANCE PLAN THE CONTRACTOR IS RESPONSIBLE FOR MAINTAINING EROSION CONTROL DEVICES THROUGHOUT THE PROJECT DURATION. ALL EROSION AND SEDIMENT CONTROL DEVICES SHALL BE CHECKED FOR STABILITY AND OPERATION FOLLOWING EVERY RUNOFF- PRODUQNG RAINFALL BUT IN NO CASE LESS THAN ONCE EVERY WEEK, ANY NEEDED REPAIRS SHALL BE MADE IMMEDIATELY TO MAINTAIN ALL DEVICES AS DESIGNED. SEDIMENT TRAPS: 1. SEDIMENT TRAPS ARE TO BE CLEANED OF SEDIMENT WHEN ITS STORAGE CAPACITY IS REDUCED BY 50 %. AFTER CLEANING SEDIMENT, RESTORE TRAP TO ORIGINAL DIMENSIONS, 2. REPLACE GRAVEL ON THE ROCK SPILLWAY THAT IS IMPAIRED BY SEDIMENT, 3. CHECK STRUCTURE EVERY WEEK FOR EROSION AND PIPING 4. PERIODICALLY CHECK THE DEPTH OF THE SPILLWAY TO ENSURE IT IS A MINIMUM OF 1.5 FEET BELOW THE LOW POINT OF THE E.M. BANKMENT, IMMEDIATELY FILL ANY SETTLEMENT OF THE EMBANKMENT TO SLIGHTLY ABOVE DESIGN GRADE, 5, ANY RIP RAP DISPLACED FROM SPILLWAY MUST BE REPLACED IMMEDIATELY. 6, AFTER ALL AREAS HAVE BEEN PERMANENTLY STABILIZED, REMOVE TRAP AND ALL UNSTABLE SEDIMENT, GRADE ACCORDING TO GRADING PLAN OR BLEND IN WITH ADJACENT GRADES - ADDITIONAL COMPACTION EFFORTS MAY BE REQUIRED IF STRUCTURE IS PROPOSED OVERTOP AREA. STABILIZE AREA, BAFFLES: 1, MAINTAIN ACCESS TO BAFFLES. SHOULD THE FABRIC COLLAPSE, DECOMPOSE, TEAR, OR BECOME INEFFECTIVE, REPLACE IT PROMPTLY, 2, REMOVE BUILDUP SEDIMENT WHEN IT REACHES ONE -HALF FULL. TAKE CARE NOT TO DISTURB BAFFLES DURING CLEANOUT. SILT FENCE: 2, SEDIMENT SHALL BE REMOVED FROM BEHIND THE SEDIMENT FENCE WHEN IT BECOMES ABOUT 0.5 FT DEEP AT THE FENCE. THE FENCE SHALL BE REPAIRED AS REQUIRED TO MAINTAIN A SUFFICIENT BARRIER, 3. SHOULD THE FABRIC OF A SEDIMENT FENCE COLLAPSE, DECOMPOSE, TEAR, OR BECOME INEFFECTIVE, REPLACE IT PROMPTLY. 4. AFTER ALL AREAS HAVE BEEN PERMANENTLY STABILIZED, REMOVE ALL FENCING MATERIALS AND UNSTABLE SEDIMENT. GRADE AREA TO GRADING PLAN OR BLEND WITH ADJACENT GRADES. STABILIZE AREA, CONSTRUCTION ENTRANCE: 1. MAINTAIN GRAVEL PAD IN A CONDITION TO PREVENT MUD OR SEDIMENT FROM LEAVING CONSTRUCTION SITE. THIS MAY REQUIRE PERIODIC TOP DRESSING WITH 2 -INCH STONE, 2. IMMEDIATELY REMOVE ALL MATERIALS SPILLED, WASHED, OR TRACKED ONTO PUBLIC ROADWAYS, TEMPORARY DIVERSIONS: 1, IMMEDIATELY REMOVE EXCESS SEDIMENT FROM FLOW AREA AND REPAIR DIVERSION RIDGE, 2. CAREFULLY CHECK OUTLETS AND MAKE TIMELY REPAIRS AS NEEDED, 3. AFTER ALL AREAS HAVE BEEN STABILIZED REMOVE THE RIDGE AND THE CHANNEL AND GRADE ACCORDING TO GRADING PLAN OR BLEND WITH ADJACENT GRADES. STABILIZE AREA. RIP RAP LINED DITCHES /CHANNELS /OUTLETS: 1. PAY CLOSE ATTENTION TO INLET AND OUTLET SECTIONS WHERE CONCENTRATED FLOW ENTERS. 2, INSPECT FOR INDICATIONS OF PIPING, SCOUR HOLES, OR BANK FAILURES. MAKE REPAIRS IMMEDIATELY. 3. MAINTAIN VEGETATION ADJACENT TO THE ROCK LINING IN A HEALTHY, VIGOROUS CONDITION TO PROTECT THE AREA FROM EROSION AND SCOUR, GRASS LINED DITCHES /CHANNELS /SWALES: 1. DURING GRASS ESTABLISHMENT PERIOD, INSPECT AFTER EVERY RAINFALL. 2. AFTER GRASS HAS ESTABLISHED, INSPECT PERIODICALLY AND AFTER HEAVY RAINFALL. IMMEDIATELY MAKE REPAIRS. 3. PAY CLOSE ATTENTION TO INLET AND OUTLET SECTIONS WHERE CONCENTRATED FLOW ENTERS, 4. GRASS SHOULD BE MAINTAINED IN A HEALTHY VIGOROUS CONDITION AT ALL TIMES, SINCE IT IS THE PRIMARY EROSION PROTECTION. Table 6.,11m NSR DESIGNED BY: Seeding mixture Seeding No. 3P for: Gentle species, Rate (ib /acre) PROJECT NO: Slopes, Soils with Average Blend of two turf-type tall 02 -10 -2013 or Better Moisture fescues (90 %) and two or Retention, more improved Kentucky Cooler Sites; High bluegrass varieties (10 0/0) 200 -250 Maintenance Seeding dates Hest' Possible Fall: Aug. 25 - Sept. 15 Aug. 20 - Oct. 25 Winter: Feb. 1 - Mar. 31 For quality turf, avoid spring seeding.; Where grading Is completed during late winter or spring, an alternative is to seed 30 lblacre Kobe lespedeza, keep mowed, prepare seedbed, and seed a permanent mixture in early fall. Soil amendments Apply lime and fertilizer according to soil tests, or apply 4,000 Ib /acre ground agricultural limestone and 1,000 lblacre 10 -10 -10 fertilizer. Mulch Apply 4,000 fblacre small grain straw or equivalent cover of another suitable mulch. Anchor straw t .y tacking with asphalt, netting, 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 Fertilize according to soil tests or apply 40 Ib /acre nitrogen in Jan. or Feb., 40 lb in Sept., and 40 lb in Nov., from a 12 -4 -8, 16 -4 -8, or similar turf fertilizer. Avoid fertilizer applications during warm weather, as this increases stand losses to disease. Mow to a height of 25 -3.5 inches as needed. Reseed, fertillze, and mulch damaged areas Immediately. 'Refer to Appendix 8.02 for botanical names. • 1416 PENDERGRASS ROAD SANFORD, N.C. 27330 PHONE: (919) 818 -2235 P.O. BOX 1448 ROANOKE RAPIDS, NC 27870 PHONE: (252) 532 -2364 SEA - =z • /03 4 ' �- o• %,,SCOTT R�G�`• Z 2, ENGINEERS SEAL AND SIGNATURE • • • U) W I- 0 Z J 0 Z 0 0 0 0 ry W * PRELIMINARY PLANS NOTFOR • : • REVISIONS NO. I BY I DATE I DESCRIPTION XX XXX I MM -DD XXX DRAWN BY: NSR DESIGNED BY: NSR CHECKED BY: WWD PROJECT NO: 2013 -01 START DATE: 02 -10 -2013 SCALE: NTS M N a w 0 C a it 100'-0" MINIMUM LENGTH EXISTING MIN. STONE DEPTH GRADE SEE NOTE 2. DIVERSION PUBLIC RIDGE RIGHT OF WAY GRADE 2% SEE NOTE 4. WIDTH VARIES - A 1.51 MIN 151 �4Z IN MIN 81 MAX VARIABLE AS DIRECTED BY THE ENGINEER t MIN. 10 GA. --STEEL POST LINE WIRES ITI WOVEN WIRE FABRIC LIP SILT FENCE GEOTEXTILE GEOTEXTILE FABRIC FABRIC ER FABRIC FILTER FABRIC z x FILL SLOPE PROFILE ENGINEERING, PLLC R, �11) - CID NOTES FOR BOTH: c"I cl, .iv IN 33 LIED TDSE ONE NATURAL GROUND MAXIMUM 1. MINIMUM WIDTH OF CONSTRUCTION ENTRANCE PAD SHALL BE 20 FEET. SEE PLANS FOR LOCATION, ACTUAL WIDTH A - 'nD W RF= Fzj�QIIA GRADE — 24" MIN. SLOPES ES AND CONFIGURATION, 2. STONE SHALL BE 2 IN TO 3 IN STONE OR RAILROAD BALLAST. PROVIDE 12-INCH THICK AT ENTRANCE FOR FIRST 15 FEET INTO PROJECT AND 6-INCH THICK FOR REMAINDER. 1416 PENDERGRASS ROAD 6" MIN. COVER OVER SKIRT 7 3. REMOVE ALL VEGETATION ANQ OTHER OBJECTIONAL MATERIAL FROM THE FOUNDATION AREA. GRADE AND CROWN RD, N.C. 27330 N FOUNDATION AREA FOR POSITIVE DRAINAGE. MIN. 12-1/2 GA. ANCHOR SKIRT AS 2 2 2 1 4. DIVERSION RIDGE HAS 3:1 SIDE SLOPES. PHONE: (919) 818-2235 INTERMEDIATE WIRES DIRECTED BY I I ENGINEER 11 11 I ES VARIES 5. THE ENTRANCE SHALL BE MAINTAINED TO PREVENT TRACKING OR FLOING OF SEDIMENT ONTO PUBLIC RIGHTS-OF-WAY. THIS MAY REQUIRE PERIODIC TOP DRESSING WITH ADDITIONAL STONE AND REPAIR AND/OR 1.51 GRAD CLEANOUT OF ANY MEASURES USED TO TRAP SEDIMENT. CLASS "B" RIP RAP P.O. BOX 1448 FRONT VIEW SIDE VIEW 12" NCDOT #5 or o ROANOKE RAPIDS, NC 27870 NOTE: #57 WASHED PHONE: (252) 532-2364 USE SILT FENCE ONLY WHEN DRAINAGE AREA DOES NOT FOR REPAIR OF SILT FENCE FAILURES, ' " PUBLIC RIGHT OF WAY 100-0 MINIMUM LENGTH STONE Isk 24" MAX EXCEED 1/4 ACRE AND NEVER IN AREAS OF USE No. 57 WASHED STONE. FOR ANCHOR WIDTH VARIES FILTER FABRIC F AT CENTER CONCENTRATED FLOW WFEN SILT FENCE IS PROTECTING CATCH END OF SILT FENCE NEEDS TO BE TURNED UPHILL. BA -1N' COMPACTED SOILS EXISTING MIN, STONE DEPTH GRADE —\ SEE NOTE 2, SECTION A-A v\ CAROB .11 _T =1 1=1 I I=, 1 44v. .0 � " .1 ..T1 :,1"4_1 :t PROFILE 4 SILT FENCING TEMPORARY DIVERSION DITCH CONSTRUCTION ENTRANCE CHECK DAM IN ....... NTS A-## NTS NTS NTS [D-## 00SC1111OT� 0\0 z0\5 ENGINEERS SEAL AND SIGNATURE UPSTREAM END OF OVERFLOW STORM DRAIN . . . . . . . . . . 7 113 PIPE 4' 4 DIAMETER z • 4�1 4 0 w 1w BURY BOTTOM OF PLYWOOD Z Ng 0:; 3/4" EXTERIOR PI YWOOD j 0 C —STEEL FEN CE PLYWOOD INLET PROTECTION POST CrYP,) uj 0 UPSTREAM END OF STORM DRAIN cg OVERFLOW Z z Lj 0 0 j Lu Lu 1/3 PIPE DIAMETER 0 ♦ 4 0 Z 0 0 ca WASHED STONE FILTER ACROSS PIPE INLET 1 0 0 zpq rl 1% z t1 tf I, Lu w Lu HARDWARE CLOTH 99 109 cc NOTE: ALL PARTIALLY COMPLETED STORM DRAINS STONE FILTER INLET PROTECTION SHAILL BE PROTECTED AT THE END OF EACH DAY IN ACCORDANCE WITH THESE DETAILS, xxx xxx xxx PIPE INLET PROTECTION NTS E-## NTS rF-## NTS G-## NTS I _u_u H-fw OVERFILL 6° PRELIMINARY PLANS FOR SETTLEMENT EARTH BERM EMBANKMENT ErT M ARM ASSEMBLY DESIGN 21 SETTLED MIN TOP FABRIC FOLDED SEDIMENT P17 INFLOW NOT FOR OVER HORIZONI POST A STRUCTURE INLET FIRST SECOND OUTLET "C" ENCLOSURE ZONE: CHAMBER: CHAMBER: ZONE: CONSTRUCTION 7:1 SIDE HORIZONTAL POST 35% OF 25% OF 25% OF 15% OF 5' MAX. E MAX. EMERGENCY FILL BY-PASS s FENCE AND FABRIC SURFACE SURFACE SURFACE SURFACE AREA AREA AREA AREA :1 810E 6" BELOW BURIED IN TRENCH WATER ENTRY UNIT ABRIC SLOP=- MAX. SETTLED TOP TOP VIEW 911 OF DAM REVISIONS 6"x6" TRENCH, NATURAL BACKFILLED AND 00 NO, BY DATE DESCRIPTION 3' MIN. GROUND COMPACTED L EMERGENCY PVC END CAP PVC ELBOW PVC VENT PIPE STONE CROSS SECTION SECTION AT OPENING SKIMMER SPILLWAY SCHEDULE 40 PVC PIPE XX XXX MM-DD XXX NOTES: DEWATERING DEVICE A - SEDIMENT STORAGE ZONE RIP-RAP WEIR AS 1. DRIVE STEEL FEhIr;E POST AT LEAST 18" INTO SOLID GROUND FR_ B - MAXIMUM SEDIMENT DEPTH CARRY DIMENSIONED AND 77 C - VFLOOD STORAGE ZONE RIP-RAP UP NOTED ON PLANS 2. WOOD POSTS AR'-- NOT ACCEPTABLE —I I 1=1 11-111-111 — I- 3. USE STAPLES VARART TO ATTACH FABRIC D - VMINIMUM FREEBOARD 51 SPILLWAY TO "HOG WIRE" PVC END CAP MIN SIDES #5 WASHED STONE v, STS �y 4. BAFFLES SPACED MAXIMUM OF VIN FRONT PERSPECTIVE VIEW 2/3 OF SEDIMENT TRAP (CLOSEST TO RIP-RAP WEIR). 5. USE A 700 G/M2 C0IR/JUTE MATERIAL BAFFLES PVC PIPE ORIFICE PLATE TOP OF BERM PVC TEE PLAN VIEW 1/2" HOLES IN :-; UNDERSIDE SCHEDULE 40 PVC PIP EMBANKMENT P C TEE P OP EL, OF STMWATER C TOP OF BAFFLE SHOULD BE 6" HIGHER THAN THE INFLOW STRUCTURE VFREEBOARD 2 3' MIN. BOTTOM OF THE SPILLWAY �±, HV=r, F-- 5'MIN. A f ><' T B FILTER LAYER 2'MIk. #1 FILTER FABRIC RIP-RAP >< >< 6" MIN, INVERT --- ...... EMERGENCY EMERGENCY FLEXIBLE HOSE DRAWN BY: NSR OR 6" OF #5 ------- VARIES ............. SPILLWAY DESIGNED BY: NSR CLEAN KEYWAY­- STONE 17' MIN. BOTTOM OF BAFFLE IN DEWATERING ZONE CHECKED BY: WWD BASIN WHEN SEDIMENT OG WIRE ATTACHED TO POSTS WITH TRENCH AND TRENCHI FILLED WITH SOIL AND PROJECT NO: 2013-01 REACHES THIS LENGTHS OF WIRE COMPACTED FILTER FABRIC START DATE: 02-10-2013 LEVEL CROSS SECTION SEDIMENT STORAGE ZONE BAFFLES END VIEW FRONT VIEW SCALE: NTS BAFFLE INSTALLATION - STEP 1 BAFFLE INSTALLATION - STEP 2 SECTION VIEW TEMPORARY SEDIMENT TRAP FABRIC BAFFLES SKIMMER SEDIMENT BASIN SKIMMER DEWATERING DEVICE SHEET: C-7 OF 7 NTS NTS NTS NTS