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HomeMy WebLinkAbout20120190 Ver 1_Application_20120221�2 STATE OF NORTH CAROLINA 1 201? DEPARTMENT OF TRANSPORTATI`Os'�' BEVERLY EAVES PERDUE EUGENE TI 7R GOVERNOR SECRETAR February 16 2012 Ms Liz Hair 120190 US Army Corp of Engineers Asheville Regulatory Field Office 151 Patton Avenue Room 208 Asheville N C 28801 5006 SUBJECT Secondary Road Paving/Bridge #83 Replacement and Pipe replacement, SR 1310 (Robinette Road) Alexander County Dear Ms Hair The North Carolina Department of Transportation ( NCDOT) requests authorization to replace Bridge #83 and a 48 pipe in conjunction with a secondary road paving project on SR 1310 (Robinette Road) in Alexander County At station 56 + 50 NCDOT proposes to replace an existing timber bridge with 50 foot long triple pipes a 137" x 67 CMPA for the main flow and double 95' x 67 CMPA s for floodflow The existing banks immediately upstream and downstream of the floodflow pipes will be excavated to bankfull elevation and will then taper back to existing contours The excavated benches will be stabilized with coir fiber matting Approximately 5 10 feet of Class II riprap will be utilized at the pipe inlet and outlet for stabilization At station 41 +00 NCDOT proposes to replace an existing 33 foot 48' CMP with a 50 foot 60 CMP Approximately 5 feet of riprap will be used at the pipe inlet and outlet for structure stabilization Temporary cofferdams /bypass pumping will be used to divert the stream flow around the construction sites as needed Upon project completion all areas affected by temporary cofferdams will be restored back to pre project conditions The total scope of the work will impact 87 feet of Robinette Creek and an unnamed tributary to Robinette Creek which is classified as Class B waters by the Division of Water Quality The project is not located within 'h mile of any critical watershed area nor is SR 1310 a rural or urban arterial therefore hazardous spill basins are not required Enclosed is the hazardous spill basin checklist Based upon correspondence with the State Historic Preservation Office (SHPO) dated 3/14/07 the proposed project area has been reviewed and SHPO has determined that no historic properties will be affected (ER Number 07 0203) Post Office Box 47 Shelby North Carolina 28151 0047 SR 1310 Robinette Road Page 2 February 16 2012 This office has conducted a GIS and field survey for the project threatened /endangered species The federally listed species for Alexander County (USFWS listed date September 22 2010) include dwarf flowered heartleaf (Hexastylzs naniflora) and the bog turtle (Glyptemys muhlenbergu) (T /SA Threatened due to similarity of appearance) National Heritage Program records document the nearest dwarf flowered heartleaf location 14 5 miles southeast of the proposed project area (in Catawba County) The heartleaf is usually found on dry to moist ravine slopes (usually north facing and of the oak hickory pine forest type) and in boggy areas near sprmgheads There is no suitable habitat within the proposed project area and no species were observed Natural Heritage Program records document the nearest bog turtle location 3 6 miles northwest of the proposed project area (in Wilkes County) Bog turtles are typically found in bogs marshes and wet pastures T /SA species are not subject to Section 7 consultation however there is no suitable habitat located within the project area and no impact on this species is anticipated I have enclosed a pre construction notification for a NW# 14 sketches of planned activities and location maps relative to the project Please note that any mitigation that may be necessary for the construction of the project will be provided in accordance with the procedures detailed in the U S Army Corp of Engineers letter dated September 1 2004 from Mr Ken Jolly to Dr Gregory J Thorpe Project information for the 401 Automated Payment Procedure is as follows • Work order number 150459 55120005 12C 002048 3300 • TIP # NA • Project Category $240 00 Fee If you have any questions or concerns please feel free to contact me at (704) 480 -9044 Thank you for your time and consideration to this matter Respectfully yours M L Holder P E Division Engineer Twelfth Division BY 1x2tJ4 YL -'%— Trish Simon Division 12 Environmental Supervisor Enclosures Cc Brian Wrenn DWQ 401 /Transportation Permitting Unit Polly Lespmasse DWQ Mooresville Regional Office W ATF9QG Office Use Only Corps action ID no DWQ project no Form Version 1 3 Dec 10 2008 Page 1 of 11 PCN Form — Version 1 3 December 10 2008 Version Pre - Construction Notification PC Form A Applicant Information 1 Processing la Type(s) of approval sought from the Corps ®Section 404 Permit El Section 10 Permit 1 b Specify Nationwide Permit (NWP) number 14 or General Permit (GP) number 1c Has the N WP or GP number been verified by the Corps? ❑ Yes ® No 1d Type(s) of approval sought from the DWQ (check all that apply) N 401 Water Quality Certification — Regular ❑ Non 404 Jurisdictional General Permit [:1401 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 1 h Is the project located within a NC DCM Area of Environmental Concern (AEC)? ❑Yes ® No 2 Project Information 2a Name of project SR 1310 Robinette Road (Bridge #83 Replacement and pipe replacement) 2b County Alexander 2c Nearest municipality / town Taylorswile 2d Subdivision name NA 2e NCDOT only T I P or state project no 3 Owner Information 3a Name(s) on Recorded Deed NCDOT Right of Way 3b Deed Book and Page No 3c Responsible Party (for LLC i f applicable) 3d Street address 3e City state zip 3f Telephone no 3g Fax no 3h Email address Page 1 of 11 PCN Form — Version 1 3 December 10 2008 Version 4 Applicant Information (if different from owner) 4a Applicant is ❑ Agent ❑ Other specify 4b Name Mike Holder 4c Busmes s name (if applicable) N C Department of Transportation Division 12 4d Street address 1710 East Marion Street 4e City state zip Shelby NC 28151 4f Telephone no 704 480 9020 4g Fax no 704 480 5401 4h Email address mholder @ncdot gov 5 Agent/Consultant Information (if applicable) 5a Name Trish Simon 5b Business name (if applicable) N C Department of Transportation Division 12 5c Street address 1710 East Marion Street 5d City state zip Shelby NC 28151 5e Telephone no 704 480 9044 5f Fax no 704 480 5401 5g Email address tsimon @ncdot gov Page 2 of 11 PCN Form —Version 1 3 December 10 2008 Version B Project Information and Prior Project History 1 Property Identification la Property identification no (tax PIN or parcel ID) NA Latitude 35 99123 Longitude - 8124948 Bridge #83 Replacement lb Site coordinates (in decimal degrees) Latitude 35 98909 Longitude -8124575 Pipe Replacement (DD DDDDDD) ( DD DDDDDD) 1c Property size < 10 acres /permit sites Entire project site = 8 1 acres 2 Surface Waters 2a Name of nearest body of water (stream river etc) to Robinette Creek and unnamed tributary to Robinette proposed project Creek 2b Water Quality Classification of nearest receiving water B 2c River basin Catawba 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 Bridge and pipe are on a unpaved secondary road that is to be paved Designated landuse is mostly wooded 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 200 3d Explain the purpose of the proposed project The purpose of the proposed work is to replace a functionally obsolete bridge and a deteriorating pipe and to pave an unpaved secondary road to paved road standards for the safety of the traveling public 3e Describe the overall project in detail including the type of equipment to be used Station 56 +50 Replace an existing timber bridge with 50 ft CMPA s a 137 x 87 main flow pipe and two double 95 x 67 floodflow pipes The existing bank immediately upstream and downstream of the floodflow pipes will be excavated down to bankfull elevation and will then taper back to existing contours The excavated benches will be stabilized with coir fiber matting Approximately 5 10 feet of Class 11 nprap will be utilized at the pipe inlet and outlet for stabilization Station 41 +00 Replace an existing 33 foot 48 CMP with a 50 ft 60 CMP Approximately 5 feet of nprap will be used at the pipe inlet and outlet for structure stabilization Temporary cofferdams /bypass pumping will be used to divert the stream flow around the construction sites as needed All areas affected by temporary cofferdams will be restored back to pre - project conditions The Project will be constructed using typical heavy equipment (trackhoe backhoe etc) Page 3 of 11 PCN Form — Version 1 3 December 10 2008 Version 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? Comments Jurisdictional determination by Division 12 Environmental Office ❑ Yes ® No ❑ Unknown 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 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? ❑ Yes ® No ❑ Unknown 5b If yes explain in detail according to help file instructions 6 Future Project Plans 6a Is this a phased project? ❑ Yes ® No 6b If yes explain Page 4 of 11 PCN Form — Version 1 3 December 10 2008 Version C Proposed Impacts Inventory 1 Impacts Summary la Which sections were completed below for your project (check all that apply) ❑ Wetlands ® Streams tributaries ❑ Buffers ❑ Open Waters ❑ Pond Construction 2 Wetland Impacts If there are wetland impacts proposed on the site then complete this question for each wetland area impacted 2a 2b 2c 2d 2e 2f Wetland impact Type of jurisdiction number — Type of impact Type of wetland Forested (Corps 404 10 Area of impact Permanent (P) or (if known) DWQ —non 404 other) (acres) Temporary 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) Site 1 Bridge ® PER ® Corps S1 ®P ❑ T Replacement with Robinette Creek ❑ INT ® DWQ 85 50 pipe S2 ® P ❑ T Site 1 Riprap stabilization Robinette Creek ® PER ❑ INT ® Corps ® DWQ 85 20 S3 ❑ P ®T Site 1 Cofferdam bypass pumping Robinette Creek ® PER ❑ INT ® Corps ® DWQ 85 100 Site 2 Pipe S4 ®P ❑ T Replacement UT to Robinette ❑ PER ® Corps 25 17 (Increase in pipe Creek ® INT ® DWQ length) S5 []PET Site 2 Cofferdam bypass pumping UT to Robinette ❑ PER ® Corps 25 100 (if needed) Creek ® INT ® DWQ S6 ❑ P ❑ T ❑ PER ❑ Corps ❑ INT ❑ DWQ 3h Total stream and tributary impacts 87 31 Comments * Permanent Impacts 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 and or lake construction proposed then complete the chart below 5a 5b 5c 5d 5e Wetland Impacts (acres) Stream Impacts (feet) Upland Pond ID Proposed use or purpose I I I (acres) number of pond Flooded I Filled I Excavated I Flooded I Filled I Excavated I Flooded P1 P2 5f Total 5g Comments 5h Is a dam high hazard permit required? ❑ Yes ❑ No If yes permit ID no 51 Expected pond surface area (acres) 51 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 ■ ' ■ 61 Comments ❑ Neuse ❑ Tar Pamlico ❑ Other ❑ Catawba ❑ Randleman 6e I 6f I 6g Buffer Zone 1 impact Zone 2 impact Stream name mitigation (square feet) (square feet) required'? ❑ Yes ❑ No ❑ Yes ❑ No ❑ Yes ❑ No 6h Total buffer impacts Page 6 of 11 PCN Form — Version 1 3 December 10 2008 Version D Impact Justification and Mitigation 1 Avoidance and Minimization la Specifically describe measures taken to avoid or minimize the proposed impacts in designing project Bank excavation to bankfull elevation immediately upstream and downstream of the floodflow pipes proposed to allow for high flow passage and reduce erosion lb Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques 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 mitigat ion option will be used for this project ❑ Mitigation bank ❑ payment to in lieu fee program ❑ Permittee Responsible Mitigation 3 Complete if Using a Mitigation Bank 3a Name of Mitigation Bank 3b Credits Purchased (attach receipt and letter) Type Quantity 3c Comments 4 Complete if Making a Payment to In lieu Fee Program 4a Approval letter from in lieu fee program is attached ❑ Yes 4b Stream mitigation requested linear feet 4c If using stream mitigation stream temperature ❑ warm ❑ cool ❑cold 4d Buffer mitigation requested (DWQ only) square feet 4e Riparian wetland mitigation requested acres 4f Non riparian wetland mitigation requested acres 4g Coastal (tidal) wetland mitigation requested acres 4h Comments 5 Complete if Using a Permittee Responsible Mitigation Plan 5a If using a permittee responsible mitigation plan provide a description of the proposed mitigation plan Page 7 of 11 PCN Form —Version 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 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? lb If yes then is a diffuse flow plan included? If no explain why ❑ Yes ❑ No Comments 2 Stormwater Management Plan 2a What is the overall percent imperviousness of this project? NA % 2b Does this project require a Stormwater Management Plan? ® Yes ❑ No 2c If this project DOES NOT require a Stormwater Management Plan explain why Complies with NCDOT s individual NPDES permit NCS000250 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? NA ❑ Phase 11 ❑ NSW 3b Which of the following locally implemented stormwater management programs El apply (check all that apply) El ❑ 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) ❑ Session Law 2006 246 ❑ Other 4b Has the approved Stormwater Management Plan with proof of approval been ❑ Yes No ❑ attached? 5 DWQ 401 Unit Stormwater Review 5a Does the Stormwater Management Plan meet the appropriate requirements? ❑ Yes ❑ No 5b Have all of the 401 Unit submittal requirements been met? ❑ Yes ❑ No Page 9 of 11 PCN Form —Version 1 3 December 10 2008 Version F Supplementary Information 1 Environmental Documentation (DWQ Requirement) la Does the project involve an expenditure of public (federal /state /local) funds or the ® Yes ❑ No use of public (federal /state) land? 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 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 The project is classified as a minimum critiena project which has low potential for cumulative /indirect impacts and will not result in additional development which could impact water quality 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 Page 10 of 11 PCN Form — Version 1 3 December 10 2008 Version 5 Endangered Species and Designated Critical Habitat (Corps Requirement) 5a Will this project occur in or near an area with federally protected species or ❑ Yes ® No habitat? 5b Have you checked with the USFWS concerning Endangered Species Act ❑ Yes ® No impacts? El Raleigh 5c If yes ind icate the USFWS Field Office you have contacted ❑ Asheville 5d What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical Habitat? NC Natural Heritage Program database and on site survey 6 Essential Fish Habitat (Corps Requirement) 6a Will this project occur in or near an area designated as essential fish habitats ❑ Yes ® No 6b What data sources did you use to determine whether your site would impact Essential Fish Habitat? No salt marshes oyster reefs or seagrass beds in the vicinity of the project 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? The State Historic Preservation Office review of project ER Number 07 0203 3/14/07 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 8c What source(s) did you use to make the floodplain determination? FEMA FIRM panal number 37103832 r� Applicant/Agent s Printed Name Date Applicant/Agent s Signature (Agents signature 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 Secondary Road Paving /Bridge #83 Replacement & Pipe Replacement SR 1310, Robinette Road Alexander County SR 152' 1 J 'SR 1431 J M SR Robin CO ette Road 5 SR 1429 ^� l - 10 It SR 14Z3 C*) SR 1331 v d N N SR 1329 M J SR 1524 l/ , SR 1405 I SR 1426 — JR 1315--\— C,, SR 1416 SR 1417 N i 1424 _ l SR 1424 S 1327 I (0 �' — N U'�1 SR 1415( 141/ 11_ SR 1419 N--Y _F l �- 1Q w 5Q- rn AL ER' _ 1 i J �.N i Cn SR 1321 _ N� CO of r� R r s w v _ ° - n - _ _ No �US 64 —L� , / �6 l` r Cs) CO CO CD i 4 i r I S 1120 - � 1 0 � 1 50 CO C - D —i 6* _ / SR 1111 ] i N-Q � ,�61rO 7 r Jj 77-V / � CV' CO in ' S 5� Ily Jq ~gR' SR 1607 6 613 l ° 7 16 OY co SR 1114 �6p_ SR� � m sue— . 4 _ ;I co IP % 1 Vicinity Map NORn! N 0 05 1 2 Miles of i f > a�ntpn t 1t / � �1 �4 '1. y 4 G.� y y1 4 �' `�',•- Sy -no `a Ocill Or, yc? �I Ir � 1 4 ti i � s� sir "�� � � �. *� L (�, �' �' � � '� � - � '} +' �' .•r`.r� �'� ^' "'' r + 1 l on, r n ara' t j r x 4 6�`}, 4e '�' $" •� �`- ```� 'SY,y, 1'�,,,<"V l� et f ,3a''' °" '{, r '�t t '' ✓'' f''+. -r°" .�,i ''' ✓ t J �" 'h� kJ -51 Bridge #83 �t t ,.* Replacement rt �'� �� �-- �'' �, -�'� y �,w s � �4�. � Y � -� ��� t 4 4 � ��, �` � i�� f fr C � `S, � � °' ik �-t -`•'•. �' `y���` � �'` `���' r� 1 } 4� p � r� r �t mss Pie sd 44. r Replacement ,4 � � '� bL 4r % ' s _ -f Name TAYLORSVILLE Location 035 9908256 N 081 2418871 W Date 2/15/2012 Caption BR#83 Rplc/Plpe Rplc/Sec Rd Paving Robinette Rd (SR1310) Scale 1 inch equals 1000 feet Robinette Crk UT Catawba River Basin Copynght (C) 1998 Maptech Inc Class II Rip Rap or shot rock at allfour corners not to exceed more than 5 unles otherwise noted Take the ditches on the North end of the stream along the headwall andthe 5 of riprap in front of the headwall Place 5 Class II riprop along the face of the bench from the end of the culvert to the excavated bench @ allfour corners WOODS W \ � W V 0 F WOODS � y \ 0, F T �� WOODS Hatched Area to be excavated 1 to create flood bench and to p i tie area back into he existing y topography M. A proposed 95 xG7 x50 CMAP on WOODS each side of a 137 x87 x50 CMAP (Main Flow) Pumping system to be used to divert the stream around the construction site as needed Bed reconstruction to take place after construction Any contaminated water within the construction site isto be pumped into a silt bag Silt fence is to be placed around stockpile and project as it allows Upon completion of the project all silt fences are to be placed as needed Also seeding and mulching of disturbed areas Divert runoff into storage basins or into TRSC A s before leaving the project Place contaminated devices at the end of silt fence Place TRSC As or Special Sediment Control Fence in the low points with weep holes in silt fence as needed Reference the Best Management Practices for Construction and Maintenance Activities by the NCDOT Chapter 4 �O WOODS TBM � y� WOODS PP / V WOODS � � m / IO m WOODS f S8100W WOODS I WOODS T A- DENOTES ROD SOUNDING LOCATION 12th Div NCDOT Bridge Maintenance Replace Bridge with Culvert SR 1310 Robinette Rd Alexander Co �r4 4,6rC3 Re d CL (1) U O a cj� M a) L rrm� C U co +U m OOi QO N CD lfl 0100 W00 WOD O + � C L N L > m— Ln X 3 vi a) p O U _C O c a) N Li 2 n 2619 m oawl (D d i— C) (1) 4- yo�ow } - � Ln CLm m L Ca ch: Lf) £819 D b 98 LO cIj + (D 0E+ m 0 �9asg0' B O nn N L �� J L 51919 m v a) _ a O 00E a) `1119 M L O _O w N r N +- m CO E l N- Omwr -WLn ') U) O a D O v O r a) U c L — — U Ln v tD cc) 9118 Ln > 118 ti N O C fn O x t W F — CO x m (n , Ln 116, ID M m 2e19 M a —T O —ON s m v I n 618 ti � 51119 c I v L218 n F1119 m � v_ gull L404-CM A aso m a a o F, U 6 9 Ln B98 n x O 198 D LO M Ln 3 a) O 9 M D 9B v r L v a) O 299 ' a c C o CL N N L ti U v 11S �+ ID N O CL O O N - 0,ILn 98 l0 ULn N co CO O °' O co CL O L 9 9B � 4l 11 "Q O LO F7-7-r-T-1 O Oi cor -WLn m co co co c000 a) [ 21-C a) a) t� v� E_U x O a) Q�C OL QOL C L CO a) } a• + E +-O C t co } � L N CAW O_ v o N_O(pc r-wLn U) maiaL000codoN N [ O 3 O U 'v v (1) U O cj� M a) L UC C 0 co +U m L + � C L N L > m— QJ L - O vi a) p O U _C O c a) ,. ^g ul 0� � Q Q (D d i— C) (1) 4- } Q L Ln CLm N — L Ca ch: Lf) Y C _a + (D 0E+ C r) o O a j m N [Lx O'f W L D: � a) [ 21-C a) a) t� v� E_U x O a) Q�C OL QOL C L CO a) } a• + E +-O C t co } � L N CAW O_ v o N_O(pc r-wLn U) maiaL000codoN N [ O 3 O U 'v v (1) 21.0 a) L O t E [ Ln a) N pU La)v O aL v } Q L Ln CLm } Y C (n + (D 0E+ C r) o O Ln [Lx O'f W L � � m m O 00E a) CO C co N _O w r N +- D l N- Omwr -WLn ') U) O a D O v O mm(n mmwcoco L 3 L — — U Ln (1) tD cc) Ln > 00 00 C [ [ O C ti CO x (n , Ln O M m a O L n ••- 1: Upstream Secondary Road Paving/ Bridge #83 Replacement a_ St 56 +50 SR 1310 (Robinette Rd) Alexander County Downstream K Secondary Road Paving/ Pipe Replacement @ St 41 +00 SR 1310 (Robinette Rd) Alexander County Inlet Outlet I�fp b t � d � f a ^ter r t Upstream Downstream M V N O m O� T O% ON m Ln 2 26 m m 26 �+ 616 n v 816 �o s16 C, 116 m M X16 X 0 a> 9 906 = M E L O O, U p p6 M v } 0 b\ r rN b N M L uwmi d Ua�C — I —I• O o LD O, 868 N ^�1 d a. 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VI D d d r f x Unnamed Tributary to the Lower Little River Nail Set in the Base of an 18 Hickory Assume Elev 100 0 Lyr / Existing Drainage Ditch..,, Proposed 60 CMP Approx 50 Long - With an inlet Headwall Existing Drainage Ditch Robinette Rd Centerline Pro'osed Rd I Existing 48 CMP Approx 33 Long to be removed Class II Rip Rap or shot rock at all four corners not to exceed more than 5 unless otherwise noted Take the ditched on the North end of the stream along the headwall and the 5 of Rip Rap in frontof the headwall Pumping system to be used to divert the stream around the constuction site as needed Bed reconstruction to take place after construction Any contaminated water within the construction site is to be pumped into a silt bag Silt fence is to be placd around stockpile and project as it allows Upon completion of the project all silt fences are to be placed as needed Also seeding and mulching of disturbed areas Divert runoff into storage basins or into TRSC A s before leaving the project Place contaminated devices at the end of silt fence Place TRSC A s or Special Sediment Control Fence in the low points with weep holes in silt fence as needed Reference the Best Management Practices for Construction and Maintenance Activities by NCDOT Chapter 4 12th Div NCDOT Bridge Maintenance Pipe Replacement Robinette Rd SR 1310 Alexander County S1 y!4-o0 Revised FB B 3 drs NCDOT HAZARDOUS SPILL BASIN CHECKLIST Division 19 County Alexander Project ID 12C 002048 River Basin Catawba Bridge No Bridge #83 and pipe Route Two sites on SR 1310 (Robinette Road) Stream Robinette Creek and an UT to Robinette Creek Water Quality Criteria Yes No Stream Crossing Blue Line On USGS lv r ORW r r WSI r r" WS II,III OR IV, Crossing Within 0 5mi of W S Critical Area r r Roadway Criteria Route Designation- Arterial Urban Arterial Rural Additional Site Information Is a Hazardous Spill Basin Required? Yes No r ry F r Yes No r r% ow Criteria Based Upon NCDOT "Best Management Practices for the Protection of Surface Waters" (March, 1997) i EROSION AND SEDIMENTATION CONTROL PLAN ALEXANDER COUNTY � _ WB— # 12C 002 048 PREPARED BY-' R TODD LUTZ Certification # 232 STATE OF NORTH CAROLINA DIVISION OF HIGHWAYS r NCG01 Permit Compliance Language for EC Plans THESE EROSION AND SEDIMENT CONTROL PLANS COMPLY WITH THE REGULATIONS SET FORTH BY THE NCG 010000 GENERAL CONSTRUCTION PERMIT EFFECTIVE AUGUST 3, 2011 ISSUED BY THE NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY � W aW z 0 -3:: Z Z N a 3 k gs O Q J m< L' 3 s T W � w Q x a I� W JN ~ ZQ W W � W � a � � �N O W Q °z w a ~ J O � LOil � aW � LL W LL) � H X w ON N }� Q C� W Z Z H a Z z Z Z �'- Z t� J Z W 0 �U xF 1n r N r (/1 r N r N r �O N o 0 0 0 0 00 _J ti ti ti Q Q z m Q �0 � A� Q w a rrHw a ? �J 0 � x O w ►- to N Q Q Q O J O � N W N W ti n Q N p W ° M V) 1, I W Q J 3 = 2 Z 2 W F- F- 3 V) � I-- Q N Q 2 LL Q ° r LL °_ a U) W Q w N M cr- W F w O O 2 d d ° 2 x O O J a. 2 to N Q Erosion Control Schedule S R 1310 Robinette Rd WB S #12C 002048 1 All adequate temporary erosion control measures will be installed before clearing and grubbing operations begin 2 As construction progresses, temporary and permanent erosion control devices shall be installed in a timely manner, according to any requirements set out in G S 113A -57 3 All siltation and erosion control devices shall be properly maintained until no longer needed 4 On projects performed by D O T Maintenance Forces, request will promptly be made to the Division Roadside Environmental Unit for stage and permanent seeding 5 Any removal of siltation devices will be based on the condition of established ground cover of that area the device is serving y W r �;— co r C� CO r j J r r 0000 r C, r i .Of r r • �. r IN ce ZM r r C C' L Cf) ' Ca, r CL ` U r r 1 LO I F— Z O U W 0 Z !aC W J Q M, @.d r � r CO m O i 0 CD Z 2 LLI Q n LL O N O L O d w L ' O Q U) d ml ml O N -� N r r 5-if r J Q W = Z Q O � U c) Q 4- LL 0 O N W 2 v U Z co N O �I m X c CM —� m E 0 w a� cl N O N L d r+ � L � O d Q- r Z 2 LLI Q n LL O N O L O d w L ' O Q U) d ml ml O N -� N r r 5-if r J Q W = Z Q O � U c) Q 4- LL 0 O N W 2 v U Z co N O �I North Carolina Department of Transportation Division of Highways Division 12, District 2 Date 2/2/12 County Alexander County Township Little River Township Road SR 1310 ( Robinette Rd ) Location From SR 1334 ( Mt Olive Ch Rd) to SR 1311 ( Gill Childers Rd ) Length 5800 Feet (1 1 miles) Right of way 60 Foot Right of way Type of Construction Grade, Base and Pave Notes This Protect will be built in two phases Phase 1 from approx Sta 0 +00 — 25 +00 and Phase 2 from Sta 25 +00 — 58 +00 18" Wattles will be used on this protect See Standard Drawings attached for proper construction of erosion control devices EROSION CONTROL SYMBOLS DRAINAGE AREA ( refer to calculation sheets) TEMPORARY ROCK SILT CHECK TYPE A SILT BASIN TYPE B TEMPORARY DIVERSION -TDB TEMPORARY SILT DITCH TSD - WATTLE (18 ) %+'fi WATTLE WITH PAM (18 ) rFr�tot T"" TEMPORARY ROCK SILT CHECK TYPE B - TEMPORARY ROCK SEDIMENT DAM TYPE B a ROCK PIPE INLET PROTECTION ROCK LINED DITCH DIRECTION OF WATER FLOW BREAKPOINT _ _BP _ ROCK INLET PROTECTION TYPE C EROSION CONTROL MATTING PERMANENT SOIL REINFORCEMENT MAT ( PSRM ) SILT FENCE --492 Nei PIPE OUTLET ENERGY DISSIPATOR Msm CORE FIBER BAFFLE CFB INFILTRATION BASIN E�� 7 +00 5 +00 3 +00 SR 1310 Robinette Rd ive Church Rd SR1334 1 8 Sheet 1 Ij 0 +00 10 +00 18 RCP I 60 RW 18 x9 x3 2 CFB o 5 /o Grade 60 day option 8 +00 24 RCP I 18 x9 x3 2 CFB _ I 3% Grade u 60 day option � 6 +00 18 RCP 1 18 x9 x3 J 2 CFB 60 day option F� I 3% Grade � -- — — I 4 +00 B – – – – -FP – -i 30 day option ''°leant" I 2 +00 ' S r Q "- I 7% Grade } I 14 x7 x2 2 CFB ive Church Rd SR1334 1 8 Sheet 1 Ij 0 +00 19 +00 17 +00 15 +00 13 +00 11 +00 SR 1310 Robinette Rd 4' 18 18 RCP u F� 60 F- R/W _0 Sheet 2 4% Grade 60 day option 14 +00 I 12 +00 18 x9 x3 2 CFB I 4% grade 60 day option I I I 10+00 20 +00 JAL 60 I R/w 18 x9 x3 2 CFB I I 60 day option 18 +00 I 1 I Grade i I 16 +00 5 18 x9 x3 2 CFB F� 60 F- R/W _0 Sheet 2 4% Grade 60 day option 14 +00 I 12 +00 18 x9 x3 2 CFB I 4% grade 60 day option I I I 10+00 SR 1310 Robinette Rd 18 x9 x 3 2 CFB F— I 29 +00 1 18 RCP I' — — L L 27 +00 40 I I 23 +00 18x9 TTJ 2 CFB 21 +00 60 R/W 30 +00 60 RW 1% Grade 28 +00 60 day option 18x9x3 2 CFB F 26 +00 I 18x9x 3 1H i 2 CFB TT I 1% 60 day option 1 Ohl — — I I 18 RCP I 22 +00 I 60 day option _ _ I 1% Grade — 20 +00 Sheet 3 SR 1310 Robinette Rd -- 40 +00 — — — — — B P — — — — — — I 39 +00 �.._ — — I 60 day option 18 x9 x3 I 1% 4 weir �— °� I Grade 2 CFB 18 RCP I 38 +00 I 37 +00 _ _ _ EL IF _ _ _ _ _ _ 1% Grade 18 x9 x3 F— I 4 weir 2 CFB I 36 +00 18 RCP I 60 day option 35 +00 B P I 1% — — — — — — — — — — — — — — Grade 34 +00 33 +00 36 RCP L3C 2 x 3 2 4 Dandelion eir RC Drive B �— 10 I 60 day option 31 +00 E--- I 1% I Grade RNV IV 30 +00 Sheet 4 47 +00 18 x9 x3 2 CFB SR1310 Robinette Rd — — — — — B F — — 60 I RNV I 17 18 RC 45 +00 I �— �— 16 E-- E-- 43+00 - 12x6x3 4 weir ' 2 CFB 24 RCP I 15 I � I 60 Pipe 12 x 6 x 3 41 +00 by bridge dept 4 weir 2 CFB I I 1% Grade 60 R/W — — — — — B �P — — — — I 40 +00 Sheet 5 50 +00 60 I RNV I I 2% I Grade I 48 +00 I 60 Day Option I I I I 46 +00 I I I 1% I Grade I I I I I 12 x6 x3 4 weir I 2 CFB I 42 +00 I I 60 Pipe 12 x 6 x 3 41 +00 by bridge dept 4 weir 2 CFB I I 1% Grade 60 R/W — — — — — B �P — — — — I 40 +00 Sheet 5 I I 59 +00 1 1% I Grade I I Gill Childers SR 1311 i I 57 +00 1% p Grade I 7*92xy x3 ir 55 +00 18 x9 x3 4 Weir 2 CFB 63 +00 12 x6 x3 4 Weir 2 CFB 51 +00 .E i SR 1310 Robinette Rd 18 RCP 19 56 +00 60 +00 18 x9 x3 60 R/W I I _D — — _ PROJECT I I 24 RCP I I 58 +00 I I 54 +00 I I 4% 12 x 6 x3 1% 21 �Fu' I Grad 4 Weir 2 CFB �® 18 RCP 19 56 +00 NAgwimmitir 18 RCP I I 1% 18 I Grade B +P — — — — — 50 +00 Sheet 6 18 x9 x3 I 4 Weir _ 2 CFB I 1% Grade 60 Day Option I I 54 +00 I I I 1% Grade 60 Day Option I 52 +00 NAgwimmitir 18 RCP I I 1% 18 I Grade B +P — — — — — 50 +00 Sheet 6 COIR FIBER BAFFLE Description Furnish material install and maintain coin fiber baffles according to the details in the plans or in locations as directed Coir Fiber Baffles shall be installed in silt basins and sediment dams at drainage outlets Work includes providing all materials placing securing excavating and backfilling of Coir Faber Baffles Materials (A) Coir Fiber Mat Matting Provide matting to meet the following requirements 100% coconut fiber (coin) twine woven into high strength matrix Thickness - 0 30 in minimum Tensile Strength 1348 x 626 lb /ft minimum Elongation Flexibility (mg cm) Flow Velocity Weight Size C Factor Open Area (measured) (B) Staples 34% x 38% maximum 65030 x 29590 Observed 11 ft /sec 20 oz /SY 6 6 x 164 ft (120 SY) 0 002 50% Provide staples made of 0 125 in diameter new steel wire formed into a u shape not less than 12" in length with a throat of 1" in width (C) Posts Steel posts shall be at least 5 ft in length, approximately 13/8 wide measured parallel to the fence and have a minimum weight of 125 lb /ft of length The post shall be equipped with an anchor plate having a minimum area of 14 0 square inches and shall be of the self fastener angle steel type to have a means of retaining wire and coin fiber mat in the desired position without displacement (D) Wire Provide 9 gauge high tension wire strand of variable lengths Construction Methods Place the coin fiber baffles immediately upon excavation of basins Install three (3) baffles in basins with a spacing of one fourth (1/4) the basin length and according to the detail sheets Two (2) coin fiber baffles shall be installed in basins less than 20 ft in length with a spacing of one third (1/3) the basin length Steel posts shall be placed at a depth of 2 ft below the basin surface with a maximum spacing of 4 ft The top height of the coir fiber baffles shall not be below the elevation of the emergency spillway base of dams and basms Attach a 9 gauge high tension wire strand to the steel posts at a height of 3 ft with plastic ties or wire fasteners Install a steel post into side of the basin at a variable depth and a height of 3 ft from the bottom of the basin to anchor coin fiber mat Secure anchor post to the upright steel post in basin with wire fasteners The coin fiber mat shall be draped over the wire strand to a minimum of 3 ft of material on each side of the strand Secure the coin fiber mat to the wire strand with plastic ties or wire fasteners Place staples across the matting at ends and ,functions approximately 1 ft apart at the bottom and side slopes of basin Overlap matting at least 6" where 2 or more widths of matting are installed side by side Refer to details in the plan sheets The Engineer may require adjustments in the stapling requirements to fit individual site conditions Measurement and Payment Coar Faber Baffles will be measured and paid for by the actual number of linear feet of coin fiber baffles which are installed and accepted Such price and payment will be full compensation for all work covered by this section including, but not limited to, furnishing all materials labor, equipment and incidentals necessary to install the coin fiber baffles Payment will be made under Pay Item Pay Unit Coir Fiber Baffle Linear Foot S CL LU LU LL :. \\� \\ \� \\ \� \\ \� \\ co 0 to IL CO > pO co IL CO LL M O■Op ■��\ uuu ■nn \ \i0 .•.eecec- cew:ceeecc�•c i� LL, u■u■gq�U \�\ 1■ ■U•• ■�N� \. \�� ,■■ ■ ■ ■ ■ ■s ■ ■ ■ ■.■ .II LLI CL ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■■ II =136 LU co z 0 IL U. u ■■■ ■ ■ ■■ ■ ■ ■ ■ ■ ■�_ uuou■uuui -II u�u ■ ■ ■ ■ ■ ■ ■ ■i 11 uuuuu■u ■n oll uv ■ ■ ■ ■ ■uuui II uoouuuun -11 u ■ ■ ■ ■ ■uu■■m II ID LL uuuuuu.■a =u _ uuuuouun p cn iiiiiiiiiiiiiiii =11 ,uuuuuum II AII ■ • uuoou ■ ■u■i dl Lu Cl) Cj) CL u ■ ■ ■ ■ ■uoo■ ■' II uuouu■om II ■ ■ ■ ■ ■ ■ ■ ■uuui -11 ■. ■■ ■IIII viuv- • • LLI IIII " LL ul =11 80 IIII 1111 • • X11 _ LU IIII -i LL u • 1111 _j LU 1111 LL 1111 • • • • LU • • .. • • • I LL • • 11 SECTION 1631 12 ROLLED EROSION CONTROL PRODUCTS 13 1631 -1 DESCRIPTION 14 Furnish place and maintain a rolled erosion control product (matting) on previously shaped 15 and seeded drainage ditches slopes or other areas at locations shown in the contract or as 16 directed Work includes providing all materials excavation and backfilling placing and 17 securing matting and maintaining the drainage ditch 18 The conditions which occur during the construction of the project will determine the quantity 19 of matting placed The quantity of matting may be increased decreased or eliminated entirely 20 as directed Such vanations in quantity will not be considered as alterations in the details of 21 construction or a change in the character of the work 22 16312 MATERIALS 23 Refer to Division 10 Item Section Matting for Erosion Control 10608 Staples 10608 24 16313 CONSTRUCTION METHODS 25 Place matting immediately following seeding Provide a smooth soil surface free from stones 26 clods or debris that will prevent the contact of the matting with the soil Preserve the required 27 line grade and cross section of the area covered 28 Unroll matting in the direction of the flow of water and apply without stretching so that it will 29 lie smoothly but loosely on the soil surface Bury the up channel or top of slope end of each 30 piece of matting in a narrow trench at least 6' deep and tamp firmly Where one roll of 31 matting ends and a second roll begins overlap the end of the upper roll over the buned end of 32 the second roll so there is a 4 overlap Construct staple checks 4 on center and every 30 ft 33 longitudinally in the matting or as directed Fold over and bury matting to the full depth of 34 the trench close and tamp firmly Overlap matting at least 4' where 2 or more widths of 35 matting are lard side by side 36 Place staples across matting at ends junctions and check trenches approximately 10 apart 37 Place staples along the outer edges and down the center of each strip of matting 3 ft apart 38 Place staples along all lapped edges 10" apart 39 Install product with netting on the top side when excelsior or straw matting is used The Engineer may require adjustments in the trenching or stapling requirements to fit individual cut or fill slope conditions 3 1631 -4 MEASUREMENT AND PAYMENT 4 Matting will be measured and paid in square yards as measured along the surface of the 5 ground over which matting has been acceptably placed 6 Payment will be made under Pay Item Pay Unit Matting For Erosion Control Square Yard PERMANENT SOIL REINFORCEMENT MAT Description This work consists of furnishing and placing Permanent Soil Reinforcement Mat, of the type specified over previously prepared areas as directed Materials The product shall be a permanent erosion control reinforcement mat and shall be constructed of synthetic or a combination of coconut and synthetic fibers evenly distributed throughout the mat between a bottom UV stabilized netting and a heavy duty UV stabilized top net The matting shall be stitched together with UV stabilized polypropylene thread to form a permanent three dimensional structure The mat shall have the following minimum physical properties Property Test Method Value Unit Light Penetration ASTM D6567 9 % Thickness ASTM D6525 040 in Mass Per Unit Area ASTM D6566 055 lb /sy Tensile Strength ASTM D6818 385 lb /ft Elongation (Maximum) ASTM D6818 49 % Resiliency ASTM D 1777 >70 % UV Stability * ASTM D4355 >80 % Porosity (Permanent Net) ECTC Guidelines >85 % Maximum Perrmssible Shear Performance Bench >8 0 lb /ft2 Stress (Vegetated) Test Maximum Allowable Velocity Performance Bench >16 0 ft/s (Vegetated) Test *ASTM D1682 Tensile Strength and % strength retention of material after 1000 hours of exposure Submit a certification (Type 1, 2, or 3) from the manufacturer showing (A) the chemical and physical properties of the mat used and (B) conformance of the mat with this specification Construction Methods Matting shall be installed in accordance with Subarticle 1631 3(B) of the Standard Specifications All areas to be protected with the mat shall be brought to final grade and seeded in accordance with Section 1660 of the Standard Specifications The surface of the soil shall be smooth, firm stable and free of rocks, clods roots or other obstructions that would prevent the mat from lying in direct contact with the soil surface Areas where the mat is to be placed will not need to be mulched Measurement and Payment Permanent Soil Reinforcement Mat will be measured and paid for as the actual number of square yards measured along the surface of the ground over which Permanent Soil Reinforcement Mat is installed and accepted Overlaps will not be included in the measurement and will be considered as incidental to the work Such payment shall be full compensation for furnishing and installing the mat including overlaps, and for all required maintenance Payment will be made under Pay Item Pay Unit Permanent Soil Reinforcement Mat Square Yard a W X� J a N � X 1 1/Z I � W pg ii 4 Z cr- W o ~ fl V Y 77 I w= = d a rr c� z O 61 19 Z W V fS W=W z ow i= W v W=W U W I W Q H Q woo' air dam►¢- J d ¢ a LO WG7 N�-M Wr•M cn m a �o W M f m C! C. W Q = J m� M � U. JQJ =zLL Q /�rr�� Q i V Zm o� i=iWm ''' U O H % H�C Q � s J a � a E___ 6 W [,Jwi _I Z III[ W fy W2 yW I 33 Zl( M WY I aI f ( rA co M JQJ w � [ Z G \ � • � �'` r� [ r L7 r I m r ff i,1 [ iT ff w ,aU aw IT I — r= N U W X� J a N � X 1 1/Z I � INFILTRATION BASIN WITH BAFFLES Description Provide an infiltration basin to remove sediment from construction site runoff at locations shown in the erosion control plans See the Infiltration Basin with Baffles Detail sheet provided in the erosion control plans Work includes constructing sediment basin, installation of coin fiber baffles, providing and placing geotextile emergency spillway liner, providing coin fiber mat stabilization for the emergency spillway outlet disposmg of excess materials, removing geotextile liner and coir fiber mat, backfilling basm area with suitable material and providing proper drainage when basin area is abandoned Materials Item Section Geotexhle for Soil Stabilization, Type 4 1056 Staples 1060 -8 Coir Fiber Mat 1060 -14 Coir Fiber Baffle 1640 Anchors Staples, stakes, or reinforcement bars shall be used as anchors Wooden Stakes Provide hardwood stakes 12 "- 24" long with a 2" x 2" nominal square cross section. One end of the stake must be sharpened or beveled to facilitate driving through the coir fiber mat and down into the underlying soil The other end ofthe stake needs to have a 1 "- 2" long head at the top with a 1 "- 2" notch following to catch and secure the cor fiber mat Steel Reinforcement Bars Provide uncoated #10 steel reinforcement bars 24" nominal length The bars shall have a 4" diameter bend at one end with a 4" straight section at the tip to catch and secure the coin fiber mat Staples Provide staples made of 0 125" diameter new steel wire formed into a u shape not less than 12" in length with a throat of 1" in width Construction Methods Excavate basin according to the erosion control plans with basin surface free of obstructions, debris, and pockets of low- density material. Excavation into or below the water table shall not occur, and avoid compacting the bottom of the basm with equipment tires, excavation bucket, etc Construct the coin fiber baffles according to Roadway Standard Drawings No 1640 01 and Section 1640 of the Standard Specifications Construct earth berm around perimeter of infiltration basin as shown in the detail and the earth berm height shall be limited to 3 ft Construct the emergency spillway according to the Infiltration Basin with Baffles Detail sheet in the erosion control plans Line emergency spillway with geotextile unrolled in the direction of flow and lay smoothly but loosely on soil surface without creases Bury edges of geotextile in a trench at least 5" deep and tamp firmly Make vertical overlaps a minimum of 18" with upstream geotextile overlapping the downstream geotextile Secure geotextile with eleven gauge wire staples shaped into a u shape with a length of not less than 12" and a throat not less than 1" in width. Place staples along outer edges and throughout the geotextile a maximum of 3 ft horizontally and vertically Geotextile shall be placed to the bottom and across the entire width of the basin according to the Infiltration Basin with Baffles detail At the emergency spillway outlet, provide a smooth soil surface free from stones, clods, or debris that will prevent contact of the coin fiber matting with the soil. Unroll the matting and apply without stretching such that it will he smoothly but loosely on the soil surface Wooden stakes, reinforcement bars, or staples may be used as anchors in accordance with the details in the plans and as directed Place anchors across the matting at the ends approximately 1 ft apart Place anchors along the outer edges and down the center of the matting 3 ft apart Measurement and Payment Silt Excavation will be measured and paid for in accordance with Article 1630 -4 of the Standard Specifications, as calculated from the typical section throughout the length of the basin as shown on the final approved plans Geotextile for Soil Stabilization will be measured and paid for in accordance with Article 270 -4 of the Standard Specifications Coir Fiber Baffles will be measured and paid for in accordance with Article 1640 -4 of the Standard Specifications Coir Fiber Mat will be measured and paid for as the actual number of square yards measured along the surface of the ground over which coir fiber mat is installed and accepted No measurement will be made for other items or for over excavation or stockpiling Payment will be made under Pay Item Pay Unit Coir Fiber Mat Square Yard ;•J will Ill • Q� v J O W r J W f0 6 ¢ a O N � CH ~� N CJ E 6 N� N xOp � 3 N 0o Q!Z .y W ¢ O CH r ..y or -0 LIS Z LL. N 0 V F- Q 2 Z K O O Q m Z !- LL � Q NW �..� NW Q W Z HJ JH Q m HJ _ �"� �..� p HH mX c3x Z H W HQ NH OU 0 cr W QW O F- _I HFw ? Z H m r f--1 -- NW NO LL Q� JW J M Q W Oi cr Oa ~ HO �� O N Q N LLI 00 N Z LL v Q ' v W F- N 'xdwi,S a J o L J LL LL Q r Q O /�/� W 3 J cL M T z N W � U J m Ld } m W M N J W \ Q OD A} W J = cqO a w �c W \ \ O Z !" H X� F F N OC7 �tMP o r+Z a CD N W /V\ LLI � • CD— in Q ^ O m F- Z m H N O v lL v j I j O r W o F=- H - LLZ W Z 'O Z acs mF-U) W m3 QcLCA J D F wo ¢MmF f— off mv) -Q w0LL 3 J oo LL F-F-0 J U- o a (rz ira H3 J aw Z O SOLLd Z "'� d� UO M-c9O _ JW_O >- ww OOZ � F-a w m m O W vwi WOCZSC7 F- W w F- cL <CW-a W ¢ =¢ow CL X IEM Z W W Q O H Z W C.) CO H OF-OmW Z"" W 2OCCF- tA OH>OW W OJQILO O 0 Z rCYMItLn ;•J will Ill • Q� v J O W f0 6 ¢ a CH ~� N CJ E 6 N� N xOp � 3 N 0o Q!Z .y W ¢ O CH r ..y ;•J will Ill • Q� v J 0 N `H0131VU M SAVMHJIH d0 NOISIAIO o O NOIIVIUOdSMddl d0 1d30 r O VNIIOUVO H1HON HUM 1lIS AHVUOdW31 c� LU d0 3l` iS UOd JNIMVUO OUVOMd1S HSIl9N3 J Q w � W H Q � _ N w co 3 o J z o O U W I° U) r ° Cn 0 w a 0 0 J cn J J N LL STATE OF If "O ENGLISH STANDARD DRAWING FOR NORTH CAROLINA TEMPORARY SILT DITCH DEPT OF TRANSPORTATION DIVISION OF HIGHWAYS RALEIGH, N C O t+� �D r 11 TEMPORARY ROCK SEDIMENT DAMS 12 1634 -1 DESCRIPTION 13 Construct maintain and remove devices placed in ditches diversions swales or drainage 14 turnouts to reduce water velocity and contain sediment 15 The actual conditions which occur during the construction of the project will determine the 16 quantity of temporary rock sediment dams constructed The quantity of rock sediment dams 17 may be increased decreased or eliminated entirely as directed Such variations in quantity 18 will not be considered as alterations in the details of construction or a change in the character 19 of the work 20 1634 -2 MATERIALS 21 Refer to Division 10 Item Section Sediment Control Stone Standard Size No 5 or 57 1005 Stone for Erosion Control Class A or Class B 1042 -1 Coir Fiber Mat 1060 -14 22 1634 -3 CONSTRUCTION METHODS 23 Install coin fiber baffles on the upstream side of each type of dam in accordance with 24 Section 1640 and as directed 25 (A) Type A 26 Place structural stone in the channel ditch diversion swale or drainage turnouts with 27 2 1 side slope on the upstream side and 3 1 side slope on the downstream side Plate the 28 upstream side with sediment control stone approximately 12 thick Use a minimum 29 spacing of 15 ft and as directed for the coir fiber baffles 30 Provide a weir section approximately 2/3 of the channel width and with an 8 ft maximum 31 height from the bottom of the channel In the center of the device, place the weir section 32 approximately 12 lower than the sides of the device or the top of the channel whichever 33 is lower 34 (B) Type B 35 Place structural stone in the channel ditch diversion swale or drainage turnouts with 36 2 1 side slopes and plate the upstream side with sediment control stone approximately 37 12' thick 1 In the center of the device provide a weir section with a 4 ft mmimum width constructed 2 18" lower than the sides of the device or the top of the channel whichever is lower 3 Construct the temporary rock sediment dam Type B with a 5 ft mnnmum thickness 4 measured along the top of the dam structure 5 Use earthen backfill material to extend dam width and create a larger sediment storage 6 volume for the temporary rock sediment dam Type B where needed 7 1634 -4 MAINTENANCE AND REMOVAL 8 Maintain the temporary rock sediment dams remove and dispose of silt accumulations at the 9 sediment dams when so directed 10 Remove temporary rock sediment dams as the project nears completion or at such time as the 11 Engineer deems the device to be no longer useful The Engineer will direct the actual time of 12 removal Prepare seed bed seed and mulch the area in accordance with Section 1660 13 1634 -5 MEASUREMENT AND PAYMENT 14 Payment for temporary rock sediment dams will be made as follows 15 Coir Fiber Baffle with be measured and paid in accordance with Section 1640 16 Stone for Erosion Control Class will be measured and paid in accordance with 17 Section 1610 18 Sediment Control Stone will be measured and paid in accordance with Section 1610 19 Silt Excavation will be measured and paid in accordance with Section 1630 0 N 'H0131VU r p S,kVMHDIH .30 NOISIAIO o NOIiViUOdSNVHI d0 1d30 M VNIIOUVO HiUON ,8, 3dAl WHO 1N3WIa3S )IOOU AHVHOdW31 LU d0 31VIS UOd ONImvua OaVONVIS HSIlON3 W r N m W Q Z O x 0 N � � Z ¢ L o ct 0 5� ¢ (A C cnn T ti 0 0 0 0 0 0 0000 .�(p 090 0 0 0 ui dad'd'0'0° J O LL Z o 0 o o N 0�0 00 0 N? 0 0 0 0000 V oa ��0 0 0 0 W V, z J, � wo N HCc �O z Z W co W J F- LL !W w¢ > O O LL z O H H V W N JW LL o W y � N IL Q cr F U y a 0 0w N F ON STATE OF NORTH CAROLINA DEPT OF TRANSPORTATION DIVISION OF HIGHWAYS RALEIGH, N C �d LL (Do cn a to O a~ >- W m J H U W z !n LU ¢o W J wm ❑ z 7 0 ¢ O J 2 7 z Ln Q ❑ >- w m wm ❑ 2 ❑ H w > F- cc O fA m H a ❑ Ci LL � � O Q � W W W W m W m m 2 O Q Q O Q F- a cn Qs� m W m U J F-- (L Q ❑ Q m J S W❑ Q F- O F- W " LL U m LL > m F- LL 0 m GCZOUm W U)0Wma ❑ :D W H ocF — "Um U- 0 Z fn LLW +I� S MWOQ F- z❑o°co� 3 O W r W U) < LL O Z OC20J O 0LL ~W0> Cn LU F -� W OC ❑ J Z Z O J W Q 0 F > H Z m Z W o U ONO!9W m Cnm000mfnF- � 0 ❑ � 2 0 m W ZWN ~F m -O mF -F—LLZ m O W W O U Q¢ U) Lo 2W JW (,J rHm m W JOM W U)LU0 -i oz U) F-OZ W fnfnHQQZZ W O 0OLCOQ= LU Z F— Q ❑ F- 2 H O Z J p 0 0 00 co M W 3 Q W y W CW9V cm c) a0 Z C w Q ¢ ENGLISH STANDARD DRAWING FOR TEMPORARY ROCK SEDIMENT DAM TYPE `B' d' M co m J Z z o / z H (A C 0 0 0 U cp .�(p (m W W z LL z ui J O LL 0 o o N N? 0 0 0 S a o V oa 0 0 J ,J O LL Ln Q ❑ >- w m wm ❑ 2 ❑ H w > F- cc O fA m H a ❑ Ci LL � � O Q � W W W W m W m m 2 O Q Q O Q F- a cn Qs� m W m U J F-- (L Q ❑ Q m J S W❑ Q F- O F- W " LL U m LL > m F- LL 0 m GCZOUm W U)0Wma ❑ :D W H ocF — "Um U- 0 Z fn LLW +I� S MWOQ F- z❑o°co� 3 O W r W U) < LL O Z OC20J O 0LL ~W0> Cn LU F -� W OC ❑ J Z Z O J W Q 0 F > H Z m Z W o U ONO!9W m Cnm000mfnF- � 0 ❑ � 2 0 m W ZWN ~F m -O mF -F—LLZ m O W W O U Q¢ U) Lo 2W JW (,J rHm m W JOM W U)LU0 -i oz U) F-OZ W fnfnHQQZZ W O 0OLCOQ= LU Z F— Q ❑ F- 2 H O Z J p 0 0 00 co M W 3 Q W y W CW9V cm c) a0 Z C w Q ¢ ENGLISH STANDARD DRAWING FOR TEMPORARY ROCK SEDIMENT DAM TYPE `B' d' M co Section 1605 DIVISION 16 EROSION CONTROL AND ROADSIDE DEVELOPMENT 1 SECTION 1605 2 TEMPORARY SILT FENCE 3 1605 -1 DESCRIPTION 4 Furnish material construct, maintain and remove temporary silt fence in locations shown in 5 the plans or in locations that require surface drainage to be filtered 6 1605 -2 MATERIALS 7 Refer to Division 10 Item Section Geotextile Type 3 1056 8 (A) Posts 9 Provide steel posts with at least 5 ft long 13/8" wide measured parallel to the fence and 10 1 251b/ft in weight per length Equip with an anchor plate with an area of at least 11 14 0 sq in Ensure a means of retainmg fencing material in the desired position without 12 displacement 13 (B) Woven Wire Fence 14 Provide woven wire fence at least 32 high with 5 horizontal wires vertical wires spaced 15 12" apart, 10 gauge top and bottom wires and 12 1/2 gauge for all other wires 16 (C) Attachment Device 17 Provide No 9 staple with at least 1 1/2 length or other approved attachment device 18 1605 -3 CONSTRUCTION METHODS 19 Install in locations as shown in the plans or as directed 20 Install wire and geotextile as shown in Roadway Standard Drawings 21 Geotextile may be used without the woven wire fence backing under the following conditions 22 (A) The Engineer will approve the geotextile 23 (B) Incline post spacing toward the runoff source at an angle of not more than 20° from 24 vertical 25 (1) Attach geotextile to the post with wire or other acceptable methods 26 (2) Overlap geotextile at least 18" at splice joints 27 (3) Install geotextile that is free of defects rips holes flaws deterioration or damage 28 1605 -4 MAINTENANCE AND REMOVAL 29 Maintain the silt fence until the project is accepted or until the fence is removed Remove and 30 replace deteriorated or ineffective geotextile Remove and dispose of silt accumulations in 31 accordance with Section 1630 when necessary or as directed 32 Leave silt fence in place until site stabilization and remove at project completion Removed 33 silt fence becomes the property of the Contractor Dress and seed and mulch all areas where 34 silt fence is removed in accordance with Section 1660 NCDOT 2012 Standard Specifications 161 Section 1606 1605 -5 MEASUREMENT AND PAYMENT 2 Temporary Silt Fence will be measured and paid in linear feet accepted in place along the 3 ground line of the fence Silt Excavation will be measured and paid in accordance with Section 1630 5 Seeding and Mulching will be measured and paid in accordance with Section 1660 6 Article 104 5 pertaining to revised contract prices will not apply to this item No revision in 7 the contract unit price will be allowed because of any ovemin or underrun Payment will be made under Pay Item Pay Unit Temporary Silt Fence Linear Foot 0 N `H0131VU - G SAVMHDIH d0 NOISIAIO o NOI1V1dOdSNVa1 d0 1d3O -Lo VNIIOUVO HlaON 30N3:1 11IS Adda0dW31 I- o LU d0 31V1S a0d JNIMVHO OaVONVIS HSIlON3 ui Wcr H cr3 F- S 0 F- _ H 3 a co � Q oz cr O = Q 0 O O co D m Q J J CL Q O x H O STATE OF NORTH CAROLINA DEPT OF TRANSPORTATION DIVISION OF HIGHWAYS RALEIGH, N C U M m Q LL Q W J H LL W fL H I— o iI I I N — a III W Ui H - O a CA J J II N U _ LU x I- LL III U w a I— III W 2 ~ W U- � 0_ N =!n "Z F O O Z W O J LLZN mrQWOW �mx QLQLNHaCD J mQi~i fUZ�Z W J " x 3 m Q W W~ 0 CA CA QxHW Q(L mBc W LLH =O F- o= Q� W �OW W W F- m " cc LU x Z H H W O 0� H BI:OJZW QIW - >U- CAW" "W CD =UO W WCA3:CDUCACOC'JW=LLJ H Q:) W 2D_JC4 Z HO CA OQG CAQ ENGLISH STANDARD DRAWING FOR TEMPORARY SILT FENCE 0 U H 2 co x Q U LL Z W W CL O F- Z O O Z ZH W W H 2 X" W � r O u7 O O r -- WATTLE Description Wattles are tubular products consisting of excelsior fibers encased in synthetic netting Wattles are used on slopes or channels to intercept runoff and act as a velocity break Wattles are to be placed at locations shown on the plans or as directed Installation shall follow the detail provided in the plans and as directed Work includes furnishing materials installation of wattles matting installation, and removing wattles Materials Wattle shall meet the following specifications 100% Curled Wood(Excelsior) Fibers Minimum Diameter Minimum Density Net Material Net Openings Net Configuration Minimum Weight 12 in 2 5 lb/ft' +/- 10% Synthetic Iin xIin Totally Encased 20 lb +/ 10% per 10 ft length Anchors Stakes shall be used as anchors Wooden Stakes Provide hardwood stakes a minimum of 2 ft long with a 2 in x 2 in nominal square cross section One end of the stake must be sharpened or beveled to facilitate driving down into the underlying soil Matting shall meet the requirements of section 1060 -8 of the Standard Specifications, or shall meet specifications provided elsewhere in this contract Provide staples made of 0 125 diameter new steel wire formed into a u shape not less than 12 in length with a throat of 1 in width Construction Methods Wattles shall be secured to the soil by wire staples approximately every 1 linear foot and at the end of each section of wattle A mmimum of 4 stakes shall be installed on the downstream side of the wattle with a maximum spacing of 2 linear feet along the wattle, and according to the detail Install a minimum of 2 stakes on the upstream side of the wattle according to the detail provided in the plans Stakes shall be driven into the ground a minimum of 10 in with no more than 2 in projecting from the top of the wattle Drive stakes at an angle according to the detail provided in the plans Only install wattle(s) to a height in ditch so flow will not wash around wattle and scour ditch slopes and according to the detail provided in the plans and as directed Overlap adjoining sections of wattles a minimum of 6 in Installation of matting shall be in accordance with the detail provided in the plans and in accordance with section 1631 3(B) of the Standard Specifications or in accordance with specifications provided elsewhere in this contract The Contractor shall maintain the wattles until the protect is accepted or until the wattles are removed and shall remove and dispose of silt accumulations at the wattles when so directed in accordance with the requirements of Section 1630 of the Standard Specifications Measurement and Payment Wattle will be measured and paid for by the actual number of linear feet of wattles which are installed and accepted Such price and payment will be full compensation for all work covered by this section including but not limited to furnishing all materials labor, equipment and incidentals necessary to mstall the Wattle Matting will be measured and paid for in accordance with section 1631 4 of the Standard Specifications or in accordance with specifications provided elsewhere in this contract Payment will be made under Pay Item Pay Unit Wattle Linear Foot WATTLES WITH POLYACRYLAMIDE (PAM) Description Wattles are tubular products consisting of excelsior fibers encased in synthetic netting Wattles are used on slopes or channels to intercept runoff and act as a velocity break Wattles are to be placed at locations shown on the plans or as directed Installation shall follow the detail provided in the plans and as directed Work includes furnishing materials, installation of wattles, matting installation, PAM application, and removing wattles Materials Wattle shall meet the following specifications 100% Curled Wood Minimum Diameter Minimum Density Net Material Net Openings Net Configuration Minimum Weight ;Excelsior) Fibers 12 in 2 51bIW +/ 10% Synthetic lm xlm Totally Encased 20 lb +/ 10% per 10 ft length Anchors Stakes shall be used as anchors Wooden Stakes Provide hardwood stakes a minimum of 2 ft long with a 2 in x 2 in nominal square cross section One end of the stake must be sharpened or beveled to facilitate driving down into the underlying soil Matting shall meet the requirements of section 1060 8 of the Standard Specifications, or shall meet specifications provided elsewhere in this contract Provide staples made of 0 125" diameter new steel wire formed into a u shape not less than 12' in length with a throat of 1 " in width Polyacrylamide (PAM) shall be applied in powder form and shall be anionic or neutrally charged Soil samples shall be obtained in areas where the wattles will be placed, and from offsite material used to construct the roadway, and analyzed for the appropriate PAM flocculant to be utilized with each wattle The PAM producf used shall be listed on the--,North Carolina Department of Environment and Natural Resources�(NCDENR) Division of Water Quality,(DWQ) webs site w Construction Methods Wattles shall be secured to the soil by wire staples approximately every 1 linear foot and at the end of each section of wattle A minimum of 4 stakes shall be installed on the downstream side of the wattle with a maximum spacing of 2 linear feet along the wattle and according to the detail Install a minimum of 2 stakes on the upstream side of the wattle according to the detail provided in the plans Stakes shall be driven into the ground a minimum of 10 in with no more than 2 in projecting from the top of the wattle Drive stakes at an angle according to the detail provided in the plans Only install wattle(s) to a height in ditch so flow will not wash around wattle and scour ditch slopes and according to the detail provided in the plans and as directed Overlap adjoining sections of wattles a minimum of 6 in Installation of matting shall be in accordance with the detail provided in the plans and in accordance with section 1631 3(B) of the Standard Specifications, or in accordance with specifications provided elsewhere in this contract Apply PAM over the lower center portion of the wattle where the water is going to flow over at a rate of 2 ounces per wattle, and 1 ounce of PAM on matting on each side of the wattle PAM applications shall be done during construction activities after every rainfall event that is equal to or exceeds 0 50 in The Contractor shall maintain the wattles until the project is accepted or until the wattles are removed, and shall remove and dispose of silt accumulations at the wattles when so directed in accordance with the requirements of Section 1630 of the Standard Specifications Measurement and Payment Wattles will be measured and paid for by the actual number of linear feet of wattles which are installed and accepted Such price and payment will be full compensation for all work covered by this section including but not limited to furnishing all materials labor, equipment and incidentals necessary to install the Wattles Matting will be measured and paid for in accordance with section 1631 -4 of the Standard Specifications or in accordance with specifications provided elsewhere in this contract Polyacrylamide(PAM) will be measured and paid for by the actual weight in pounds of PAM applied to the wattles Such price and payment will be full compensation for all work covered by this section, including, but not limited to, furnishing all materials, labor, equipment and incidentals necessary to apply the Polyacrylamide(PAM) Payment will be made under Pay Item Pay Unit Polyacrylamide(PAM) Pound Wattle Linear Foot G < WoN LU 4i- LU J lu W <W JO Nr� Wr~i W 33W° Nti N O R g- oil gg J 4 i N W 1 3 O HLL iLI J ° W (% o W i U > a J a a LL a a ` o o T � m J ° W �W W a °a CL Lu °Yd o W o J C-4 M J NJfA CL IL cm Nw uj r 3 ~ O V J 0 H O N O y C 0 W Hw yN O > O W W H M J z .. ~ E-- Z M N N Q` J 3 � 0 fq J W U X W TEMPORARY ROCK SILT CHECK TYPE A WITH EXCELSIOR MATTING AND POLYACRYLAMIDE (PAM) Description Temporary Rock Silt Checks Type A with Excelsior Matting and Polyacrylamide (PAM) are devices utilized in temporary and permanent ditches to reduce runoff velocity and incorporate PAM into the construction runoff to increase settling of sediment particles and reduce turbidity of runoff Temporary Rock Silt Checks Type A with Excelsior Matting and PAM are to be placed at locations shown on the plans or as directed Installation shall follow the detail provided in the plans and as directed Work includes furnishing materials installation of Temporary Rock Silt Checks Type A, matting installation, PAM application, and removing Temporary Rock Silt Checks Type A with Excelsior Matting and PAM Materials Structural stone shall be class B stone that meets the requirements of Section 1042 of the Standard Specifications for Stone for Erosion Control Class B Sediment control stone shall be #5 or #57 stone, which meets the requirements of Section 1005 of the Standard Specifications for these stone sizes Matting shall meet the requirements of Excelsior Matting in section 1060 -8(B) of the Standard Specifications or shall meet specifications provided elsewhere in this contract Polyacrylamide (PAM) shall be applied in powder form and shall be anionic or neutrally charged Soil samples shall be obtained in areas where the Temporary Rock Silt Checks Type A with Excelsior Matting and PAM will be placed, and from offsite material used to construct the roadway and analyzed for the appropriate PAM flocculant to be utilized with each Temporary Rock Silt Check Type A The PAM product used shall be listed on the North Carolina Department of Environment and Natural Resources (NCDENR) Division of Water Quality (DWQ) web site as an approved PAM product for use in North Carolina Construction Methods Temporary Rock Silt Checks Type A shall be installed in accordance with Section 1633 3(A) of the Standard Specifications Roadway Standard Drawing No 1633 01 and the detail provided in the plans Installation of matting shall be in accordance with the detail provided in the plans, and anchored by placing Class B stone on top of the matting at the upper and lower ends Apply PAM at a rate of 3 5 ounces over the center portion of the Temporary Rock Silt - Checks Type A and matting where the water is going to flow over PAM applications shall be done during construction activities and after every rainfall event that is equal to or exceeds 0 50 in The Contractor shall maintain the Temporary Rock Silt Checks Type A with Excelsior Matting and PAM until the project is accepted or until the Temporary Rock Silt Checks Type A with Excelsior Matting and PAM are removed and shall remove and dispose of silt accumulations at the Temporary Rock Silt Checks Type A with Excelsior Matting and PAM when so directed in accordance with the requirements of Section 1630 of the Standard Specifications Measurement and Payment Temporary Rock Silt Checks Type A will be measured and paid for in accordance with section 1633 5 of the Standard Specifications or in accordance with specifications provided elsewhere in this contract Matting will be measured and paid for in accordance with section 1631 4 of the Standard Specifications or in accordance with specifications provided elsewhere in this contract Polyacrylamide(PAM will be measured and paid for by the actual weight in pounds of PAM applied to the Temporary Rock Silt Checks Type A Such price and payment will be full compensation for all work covered by this section including, but not limited to furnishing all materials labor equipment and incidentals necessary to apply the Polyacrylamide(PAM Payment will be made under Pay Item Pay Unit Polyacrylamide(PAM) Pound 0 N 'H0131VU - r0 SAVMHDIH 30 NOISIAIO o NOIIVIUOdSMdd1 30 1d3O M VNIIOUVO H1HON jV, 3dA1 )133HO 1lIS )13Od AHVHOdW31 d LU 0 31VIS a03 ONIMVUa OUVONd1S HSIlON3 = � �M-► PP Q0. P LL �► P `d "'JPP Pa. W 2 O H y J O H Z O U H Z W M w W U) H z W LU z in O � U J O O LL LU Z Z O O U H U Z O I� H LU Lo U Z 00 = H O W U Z m Q O cc co O U U H Q U J O U z J I— O W U W W U U F- O O O z LL U X 0 0 0 0 0 0 0 0 0 0 0 0 ol(p (p (p cp (p (p cp (1pd 00000000 0000000000000 d'a° d'o°cAcAd'd'd'cA�d o-o,.00- oo-oo-oe o,0000 0 0 0 0 0 0 0 0 ol Tc (� �'0 0 0 0 0 Q STATE OF NORTH CAROLINA DEPT OF TRANSPORTATION DIVISION OF HIGHWAYS RALEIGH, N C W 2 O y J Q ¢ 7 H U ¢ F Go C� m co CO '� Z O z H � H U N W 2 N F ENGLISH STANDARD DRAWING FOR TEMPORARY ROCK SILT CHECK TYPE 'A' r r� 0 0 �M W �W = r y Q 0 W Q Z 2z QH o Z O 1 °L L) U C, d' N 0 LC N 2 N F ENGLISH STANDARD DRAWING FOR TEMPORARY ROCK SILT CHECK TYPE 'A' r r� 0 0 �M W �W = r y Q W w Z - o m U) a MI C, W O m W Z w WF U I- y = p a g e LU OU co H 000` QF=- QWU 3 �3 ow" ° w a LLW 0 ►� WOOO m w Q �,po m am. C7m WQC o o Z Z O W HZ ZZW �Q 0OX F- Z N ° ° W ~ O~ x N Cl) v/ N O W p 9O IAUW d� z m N y n `} LLI CC OC ~ C9 to O M) v ~ y y z ° i F- I LL �0w cr z -j U N 0 00 IL O O Q H a n o V x o i -i w� ao� W W M to O 1- V � =� "� W Q Z W J H co p Z Q J 1Z-1 Q� Y m W C H V W 0 m h O w t- ° x t -7 ° Z m �ama �ma' a LL W ��O��os� oe�000 rnololl mrnm� zl 00000000 0000000000000 g W =x $p � z O cPU' ��Wo°cPcAU�a°a°d a V) F~— 00,100� N ca Q m O O O 0 0 0 0 m 0°(f 0 0 0 0 0 0 O 0 Q Q w f7 J N LU LU W H W O x N y U) V, J N FO 2 O U W W cr y O LU2 y W STEP 1 Input Project Information items to red are REQUIRED f%Qn Sh esof I SECTION 1 of 1 Construction time County Aloonder < 6 months (YIN)? Y HOW (YIN)? N Elevation Location Trout (YIN)? N Tool ft Pre`ared B11�3. From Sta 1 3 + 00 Date—Prepared - 9MMM to Sta 0 + 00 Level 111 A # Right/Left Rt No Elev Data / Level Ill A Ex irati on v _ Y Ditch Grade 7 000 / Reviewed B Contributing Date Reviewed RNII Width 30 feet Level III A # Length of Run X 300 feet Level III A Expiration Disturbed Area = 0 21 acres Drainage Area 1 27 acres Drainage Area must equal or exceed the Disturbed Area found above Surface Dewatering Device Y r Surface Dewatering Device must be utilized Answer Y Is this a Typical Section (YIN)? Y Will RUSLE2 be used to model the Non Typical sections? N oRt Regression Constant, C 659 Table 2 7 (Level 111 Ref Manual) Rainfall Factor R 160 Figure 2 1 Erodibility Factor K 024 Table 2 2 or Web Soil Survey (http Asoildatamart nres usda gow) Soil Type Pacolet Rion informational purposes only STEP 2 Ditch Liner requirements Utilize the Required Uner tab and note recommendations on plans. STEP 3 Velocity Control Requirements TYPE ROCK SILT CHECKS 6 spacedat ®feet Choose between Type a Rock Silt Checks or Wattles OR WATTLES See the HELP Tab for additional clarification and an example on how to place on plans Start with Option 5 OPTION 4 Using RUSLE2 Analysis to determine required storage OPTION 4A For DRAINAGE AREA < 3 Acre Use V =CRKs to determine storage Regression Constant C 659 Rainfall Factor R 160 Erodibility Factor K 024 From Step 1 above Soil Type Pacolet Rion Ddchlme Slope s 0 07000 tuft V= 145254 ft /ac/yr Required Storage Volume= 300 11 ft3 See Option 5 OPTION 4B For DRAINAGE AREA < 3 Acre Use RUSLE2 Modeling to determine storage Sediment Delivery from RUSLE2 0 00 tons/acre/yr Converting to R3/ac4r NIA ft /aclyr Required Storage Volume= NIA fe See Option 5 OPTION 4C Using the Required Storage Volume from Option 4A or 48 to determine # of Wrapped TRSC- A/Watdes Required These devices can be used to satisfy the velocity requirements in Step 3 Storage from Wrapped Type A Rock Silt Checks or Wattles Option of using Wrapped Type A Rock Silt Enter Ditch Front Slope Gradient (H V) 2 1 Checks or Wattl s Enter Ditch Back Slope Gradient (H t7 is 1 Enter Device Height 15 ft Area Behind Device 3 94 e Length of Ditch Behind Device 2143 ft 3 See Option 5 Storage Behind Device (assumes 651 effeclency) 18 28 ft Wrapped TRSC- A/Watdes required X Go to Option 5, Total NIA ft COMMENTS Designer still has the opt on of usinq Opt on 5 or t .2n A I bra �-, o r uS� 30 day (3)0 f io n A&.5 1 Y1 4 Rt OPTION 6 Alternative Designs IMPORTANT Before using Option 6 be sure that the information in Step 1 is accurate! There may be cases where the RUSLE2 Analysis (Option 4) yields an excessive number of devices to achieve storage requirements and site constraints disallow infiltration and skimmer basin (option 5) installation Therefore it will be necessary to utilize the option below that best fits your situation The 60 Day Option Is not available for projects Involving HQW or Trout Waters '"The minimum basin size for a skimmer to function property is 20 x10 If the basin dimensions are less than this size an infiltration basin must be utilized regardless of dewatering fame 30 DAY OPTION Under these circumstances it vmill be necessary to provide a minimum of 23 / of the storage calculated using the RUSLE2 analysis (Option 4) during the Clearing and Grubbing Phase This section must then be permanently stabilized within 30 days from the time clearing and grubbing begins This is derived from Table 2 1 of the Level III Reference Manual which indicates that for any given 30 day period in NC the maximum amount of Rainfall Energy that can be expected is 23 / of the annual total In this situation 23 / of RUSLE2 Required Volume Design Depth (ft) Proposed Basin Side Slopes 1-MO-46.. A..h —in 8418 ft3 z � 1 5 1 side slopes Web Sod Survey (http, //soildatamart nres u gov o m /sec 110 Use Infiltration or 154 Skimmer Basin 06 --- --- - - - - -- - - - -- - - Sat Hydraulic Con Ksat, micr Soil Permeability in/hr Soil Permeability in/hr Dewatenn Time (Days) Dewatenn Time (Days) N/A Basin Design Basin Design Mmrmum 2 1(L 149 Ratio Suggested Top Width ft Suggested Top Length (ft) 5 Suggested Top Len (ft) 0 10 Final Design To Len ft Final Design Top Width ft 7 3 Final Design Top Len ft Weir Width ft 14 Final Design De ft 15 2 Orifice Diameter in Weir Width ft 4 0 Skimmer Sae (in) V city storage (et') 15 Onfice Diameter in 025 Dewatenn Time (Days) 2 V iify Storage (fe) 94 00 OK PAM must be introduced by a minimum of 1 Wrapped Type A Rock Silt Check or Wattle upgrade from this outlet device Wattles are required for Trout or HQW waters 60 DAY OPTION Under the circumstances d will be necessary to provide a minimum of 43 / of the storage calculated using the RUSLE2 analysis (Option 4) during the Clearing and Grubbing Phase This section must then be permanently stabilized within 60 days from the time clearing and grubbing begins This is derived from Table 2 1 of the Level III Reference Manual which indicates that for any given 60 day period in NC the maximum amount of Rainfall Energy that can be expected is 43 / of the annual total In this situation 43 A of RUSLE2 Required Volume Design Depth (ft) Proposed Basin Side Slopes A—e.eie 15738 fY° 3 1 5 1 side slopes Web Soil Survey http / /soddatamart nres usda gov/) m /sec 0 0 Skimmer Basin 0 00 Required Sat Hydraulic Can (Ksat micro Soil Permeability in/hr Dewatenn Time (Days) N/A Basin Design Minimum 2 f (L W Ratio Suggested To Width ft 6 Suggested Top Length (ft) 12 Final —Design To Width ft 0 Final Design To Len ft 0 Final Design De ft 3 Weir Width ft 4 Skimmer Size (in) 15 Orifice Diameter in 025 Dewatenng Time (Days) 0 V city storage (et') 000 Too Low PAM must be introduced by a minimum of 1 Wrapped Type A Rock Silt Check or Wattle upgrade from this outlet device ) N- to pn the EC-lrlan whether the 30�q-r to lay e't/en is userAl M GENERAL NOTES If the project involves HQW or Trout Waters wattles in conjunction with PAM (polyacrylamide) must be installed according 1 f� 9D n ft 14 oaae 755 ( it v3 3 a 0 m n x c n x fl x 1 Rt W E s v f OO r 1° f 1 rJ� I 1 !J� rI )fj(II 1 1 t t Printed Jan 11, 2012 STEP 1 Input Project Information items in red are REQUIRED Construction time Alexander < 6 months (Y /N)? Y HQW (YIN)? N Elevation Trout (YIN)? N Tool ft 1 From Sto 3 + 00 to Ste 0 + 00 s Right/Left Lt No Elev Data / / Ditch Grade 7 000 / Contributing Date Reviewed RIW Width 30 feet Length of Run X 300 feet (0 Z-7 SECTION 1 of 1 County Alexander 1W 1 s 'EROsion DESign Location 2 1 Prepared By &IRUM 3. Date`Pre aced 1 5 1 Level III A# a _ e 0 _ Level III A Ex [ration Reviewed B Area Behind Device Date Reviewed Level III A# Length of Ditch Behind Device 2143 ft Level III A Expiration Disturbed Area = 021 acres Drainage Area 03 acres Drainage Area must equal or exceed the Disturbed Area found above Surface Dewatering Device N Is this a Typical Section (YIN)? Y Will RUSLE2 be used to model the Non Typical sections? N Regression Constant, C 659 Table 2 7 (Level llf Ref Manual) Rainfall Factor R 160 Figure 2 1 Erodibility Factor K 024 Table 2 2 or Web Soil Survey (http Asoddatamart nres usda govl) Soil Type Pacolet Rion informational purposes only STEP 2 Ditch Liner requirements Utilize the Required Liner tab and note recommendations on plans STEP 3 Velocity Control Requirements TYPE ROCK SILT CHECKS 6 spaced at 43 feet Choose between Type Rock Silt Checks or Wattll es OR WATTLES See the HELP Tab for additional clarification and an example on how to place on plans Start with Option 4A OPTION 4 Using RUSLE2 Analysis to determine required storage OPTION 4A For DRAINAGE AREA < 3 Acre Use V =CRKs to determine storage Regression Constant C 659 Rainfall Factor R 160 Erodibility Factor K 024 From Step I above Soil Type Pacolet Rion Ditchline Slope s 0 07000 Wit V= 146264 ft /aclyr Required Storage Volume= 300 11 ft' Using 82 / of Rainfall Factor see note in cell C4 Move on to Option 4C OPTION 4B For DRAINAGE AREA < 3 Acre Use RUSLE2 Modeling to determine storage Sediment Delivery from RUSLE2 0 00 tons /acre/yr Converting to It'/acyr NIA ft /ac/yr Required Storage Volume= NIA ft3 See Option 4A OPTION 4C Using the Required Storage Volume from Option 4A or 4B to determine # of Wrapped TRSGA/WaXes Required These devices can be used to satisfy the velocity requirements in Step 3 Storage from Wrapped Type A Rock Sift Checks or Wattles Option of using Wrapped Type A Rock Silt 1 Enter Ditch Front Slope Gradient (H 19 2 1 Checks or lhattles Enter Ditch Back Slope Gradient (H V) 1 5 1 Enter Device Height 1 5 it Area Behind Device 3 94 f? Length of Ditch Behind Device 2143 ft Excessive number of devices required Go to Storage Behind Device (assumes 65'/ effec /ency) 18 28 ft3 Option 5 Wrapped TRSC- ANYatdes required X 17 0 Total 31078 ft COMMENTS Designer still has the option of using Option 5 or 6 7 (18 ) wattles will be used for storage = (112 cu ft ) and a 10 x20 x3 TRSD B = ( 276 cu it ) will also be used to meet the total required storage Total storage =( 389 cu ft ) PAM will be applied on the last wattle before the TRSD B Plan 5 ee {' / Q l91- STEP 1 Input Project Information items in red are REQUIRED SECTION 1 of 1 Construction time 659 County Alexander Erodibility Factor K 024 < 6 months (YIN)? Y Sod Type Pacolet Rion Ddchline Slope s _ HOW (YIN)? N Elevation V= 62262 ft ° /actyr Location Trout (YIN)? N Tool ft Pre red{By Quci _ From Sta 3 + 00 Date` Pre red to Sta 6 + 00 Level 111 A ## -- Right/Left. Rt No Elev Data / Level III A Ex iratlon — _ �R / Ditch Grade 3 000 / Reviewed B Contributing Date Reviewed WIN Width 30 feet Level III A # Length of Run X 300 feet Level III A Expiration Disturbed Area = 021 acres Drainage Area 1 3 acres Drainage Area must equal or exceed the Disturbed Area found above Surface Dewatering Device Y r Surface Dewatering Device must be utilized Answer Y Is this a Typical Section (YIN)? Y Will RUSLE2 be used to model the Non Typical sections? N Regression Constant, C 659 Table 2 7 (Level N Ref Manual) Rainfall Factor R 160 Figure 2 1 Erodibildy Factor K 024 Table 2 2 or Web Soil Survey (http / /soddatamart nres usda gow) Sod Type Pacolet Rion informational purposes only STEP 2 Ditch Liner requirements Utilize the Required Liner tab and note recommendations on.plans STEP 3 Velocity Control Requirements Choose between Type Rock Silt TYPE B ROCKSILT CHECKS 2 spacedat 100 feet Checks or Wattles OR WATTLES See the HELP Tab for additional clarification and an example on how to place on plans Start with Option 5 OPTION 4 Using RUSLE2 Analysis to determine required storage OPTION 4A For DRAINAGE AREA < 3 Acre Use V =CRKs to determine storage Regression Constant C 659 Rainfall Factor R 160 Erodibility Factor K 024 From Step 1 above Sod Type Pacolet Rion Ddchline Slope s 0 03000 ft/ft V= 62262 ft ° /actyr Required Storage Volume= 128 62 ft3 See Option 5 OPTION 4B For DRAINAGE AREA < 3 Acre Use RUSLE2 Modeling to determine storage Sediment Delivery from RUSLE2 0 00 tonslacretyr Converting to ft3/aor NIA ft /ac/yr Required Storage Volume= NIA ft3 See Option 5 OPTION 4C Using the Required Storage Volume from Option 4A or 4B to determine # of Wrapped TRSC- A/WaMes Required These devices can be used to satisfy the velocity requirements in Step 3 Storage from Wrapped Tyne A Rock Silt Checks or Wattles Option of using Wrapped type A Rock Silt Enter Ditch Front Slope Gradient (H V9 2 1 I Checks or Wattles Enter Ditch Back Slope Gradient (H %0 15 1 Enter Device Height 1 5 ft Area Behind Device 3 94 fe Length of Ditch Behind Device 50 00 ft See Option 5 Storage Behind Device (assumes 6510 effeciency) 42 66 ft3 Wrapped TRSGA/Watt /es required X Go to Option 5 Total NIA ft MENTS Designer still has the option of us ng Option 5 or 6 60 Day Option Infiltration Basin OPTION 6 Alternative Designs IMPORTANT Before using Option 6 be sure that the information in Step 1 is accurate! There may be cases where the RUSLE2 Analysis (Option 4) yields an excessive number of devices to achieve storage requirements and site constraints disallow infiltration and skimmer basin (option 5) installation Therefore it will be necessary to utilize the option below that best fits your situation The 60 Day Option Is not available for projects involving HOW or Trout Waters —The minimum basin size for a skimmer to function property is 20 x10 If the basin dimensions are less than this size an infiltration basin must be utilized regardless of dewatering time 30 DAY OPTION — Under these circumstances it will be necessary to provide a minimum of 23 / of the storage calculated using the RUSLE2 analysis (Option 4) during the Clearing and Grubbing Phase This section must then be permanently stabilized within 30 days from the time clearing and grubbing begins This is derived from Table 2 1 of the Level III Reference Manual which indicates that for any given 3D day period in NC the maximum amount of Rainfall Energy that can be expected is 23 / of the annual total In this situation 23 / of RUSLE2 Required Volume Design Depth (ft) Proposed Basin Side Slopes Infiltrahnn Analvnis 3 3608- ft 1 5 1 side slopes Web Sod Survey (h / /soddatamart.nres usda gov/) m /sec 0 D Skimmer Basm 0 00 Required N/A Sat Hydraulic Con (Ksat micro Soil Permeability in/hr Dewatenn Time (Days) Basin Design Minimum 2 1(L Ratio IM" ested To Width ft 3 Suggested Top Length (ft) 6 Final Design To Width ft 5 _ Final Design To Len ft 10 Final Design De it T 3 Weir Width ft - 4 Skimmer Size (in) 15 Onfice Diameter m 025 Dewaterin Time (Days) 1 Verity Storage (tr') 52 50 OK PAM must be introduced by a minimum of 1 Wrapped Type A Rock Silt Check or Wattle upgrade from this outlet device Wattles are required for Trout or HQW waters 60 DAY OPTION= Under these circumstances it will be necessary to provide a minimum of 43 / of the storage calculated using the RUSLE2 analysis (Option 4) during the Clearing and Grubbing Phase This section must then be permanently stabilized within 60 days from the time clearing and grubbing begins This is derived from Table 2 1 of the Level III Reference Manual which indicates that for any given 60 day period in NC the maximum amount of Rainfall Energy that can be expected is 43 / of the annual total In this situation 43 / of RUSLE2 Required Volume Design Depth (ft) Proposed Basin Side Slopes Inrilhr=hnn Anah —,. 6745 ft3 3 • 1 5 1 side slopes Web Soil Survey (http / /soildatamart nrcs usda gov O miSeC 13 0 " Use Infiitiation or 1 82 Skimmer Bas . 08 Sat Hydraulic Con Ksat mitt Soil Permeability in /hr Dewaterin Time (Days) Basin Design Minimum 2 1(L K9 Ratio Suggested To Width ft 4 Suggested Top Length (ft) 8 Final Design To Width ft 9 Final Design To7p Len ft 18 Final Desi n De ft 3 Weir Width ft 4 Skimmer Size (in) 15 Orifice Diameter m 025 Dewaterin Time (Days) 4 verify Stora In') - 20250, PAM must be introduced by a minimum of 1 Wrapped Type A Rock Silt Check or Wattle upgrade from this outlet device Nicen fhcEGrlan whefh_e °1fhe�30 �r fiUa�ay e�i+en is used. i GENERAL NOTES If the project involves HQW or Trout Waters wattles in conjunction with PAM (polyacrylamide) must be installed according r� 59 in ft 73iIH 03= I5 755 ,I 1 for �a y g t i 1 { € I t �li Iti 1 v m n c n 4 N S Spa 3 foo - 6+00 r 4 c I u STEP 1 Input Project Information items in red are REQUIRED Construction time Alexander < 6 months (YIN)? Y HQW (YIN)? N Elevation Level III A# Level III AiEx nation Trout (YIN)? N Tool tt Date Reviewed From Sta 6 + 00 Level III A Expiration M to Sta 7 + 50 Right/Left. Rt No Elev Data / / Ditch Grade 3 000 /a Contributing RIW Width 30 feet Length of Run X 150 feet pica n S � ec f / SECTION 1 of 1 County Alexander . . e e Location Prepared B G�9Rrri=t �s Date Pre aced Level III A# Level III AiEx nation From Step 1 above Reviewed B Pacolet Rion Date Reviewed Ditchline Slope s Level III A # Level III A Expiration M Disturbed Area = 0 10 acres Drainage Area 1 1 acres Drainage Area must equal or exceed the Disturbed Area found above Surface Dewatenng Device Y I Surface Dewatering Device must be utilized Answer Y Is this a Typical Section (YIN)? Y Will RUSLE2 be used to model the Non Typical sections? N Regression Constant, C 659 Table 2 7 (Level 1/1 Ref Manual) Rainfall Factor R 160 Figure 2 1 Erodibildy Factor K 024 Table 2 2 or Web Soil Survey (hitp.//soddatamart firs usda govl) Soil Type Pacolet Rion informational purposes only STEP 2 Ditch Liner requirements Utilize the Required Liner tab and note recommendations on plans. STEP 3 Velocity Control Requirements Choose between Type B Rock Silt TYPE B ROCK SILT CHECKS spaced at 75 feet Checks or Wattles OR WATTLES See the HELP Tab for additional clarification and an example on how to place on plans Start with Option 5 OPTION 4 Using RUSLE2 Analysis to determine required storage OPTION 4A For DRAINAGE AREA < 3 Acre Use V=CRKs to determine storage Regression Constant C 659 Rainfall Factor R 160 Erodibility, Factor K 024 From Step 1 above Sod Type Pacolet Rion Ditchline Slope s 0 03000 ft/ft V= 62252 ft °Iac/yr Required Storage Volume= 64 31 ft3 See Option 5 OPTION 48 For DRAINAGE AREA < 3 Acre Use RUSLE2 Modeling to determine storage Sediment Delivery from RUSLE2 0 00 tons /acre/yr Converting to tt3/ac/yr NIA ft /ac/yr Required Storage Volume= F N/A ft3 See Option 5 OPTION 4C Using the Required Storage Volume from Option 4A or 4B to determine # of Wrapped TRSC -A/WaW Required These devices can be used to satisfy the velocity requirements in Step 3 Storage from Wrapped Type A Rock Sift Checks or Wattles Option of using Wrapped Type A Rock Silt Enter Ditch Front Slope Gradient (H V) 2 1 Checks or Wattles Enter Ditch Back Slope Gradient (H V) 15 1 Enter Device Height 1 5 ft Area Behind Device 3 94 fe Length of Ditch Behind Device 5000 ft 3 See Option 5 Storage Behind Device (assumes 65•/ effeciency) 42 66ff ft l Wrapped TRSGA/Wattles required X Go to Option 5) Total N/A ft nr.....eurc Desioner still has the option of usinq Option 5 or 6 USE The 60 Day opbi USE Infiltration Basin T 8t OPTION 6 Altematfve Designs IMPORTANT Before using Opbon 6 be sure that the information in Stop 1 is accurate) There may be cases where the RUSLE2 Analysis (Option 4) yields an excessive number of devices to achieve storage requirements and site constraints disallow infiltration and skimmer basin (option 5) installation Therefore it will be necessary to utilize the option below that best fits your situation The 60 Day Option is not available for projects involving HOW or Trout Waters '"The minimum basin size for a skimmer to function properly is 20 x10 If the basin dimensions are less than this size an Infiltration basin must be utilized regardless of dewatenng time 30 DAYJOPTION Under these circumstances it will be necessary to provide a minimum of 23 / of the storage calculated using the RUSLE2 analysis (Option 4) during the Clearing and Grubbing Phase This section must then be permanently stabilized within 30 days from the time clearing and grubbing begins This is derived from Table 2 1 of the Level III Reference Manual which indicates that for any given 30 day period in NC the maximum amount of Rainfall Energy that can be expected is 23 / of the annual total In this situation 23/ of RUSLE2 Required Volume Design Depth (ft) Proposed Basin Side Slopes Infitratinn Analysis 18 04 fC� 3 � 1 5 1 side slopes Web Soil Survey htt /lsolldatamart nres usda goy m /sec 0 0 Skimmei Basin 0 00 Required NIA Sat Hydraulic Con (Ksat micro Soil Permeabil in/hr Dewaterin Time (Days) Basin Design Minimum 2 1(L No Ratio Su ested To Width ft 2 Suggested Top Length (ft) Suggested Top Length (ft) 4 Final Design To Width ft Final Design To Width ft 5 Final Design To Len ft Final Design To Len ft 10 Final Design De ft Final Design De ft 3 Weir Width ft Weir Width ft 4 Skimmer Size (in) Skimmer Sae (in) Is Onfice Diameter In Onfice Diameter in 025 Dewatenng Time (Days) Dewatenn Time (Days) 1 V my St rage in'► v rift' storage Ift'j 52 50 OK PAM must be introduced by a minimum of 1 Wrapped Type A Rock Silt Check or Wattle upgrade from this outlet device Wattles are required for Trout or HQW waters 60 DAY OPTION Under these circumstances it will be necessary to provide a minimum of 43 / of the storage calculated using the RUSLE2 analysis (Option 4) during the Clearing and Grubbing Phase This section must then be permanently stabilized wrthin 60 days from the time clearing and grubbing begins This is derived from Table 2 1 of the Level III Reference Manual which indicates that for any given 60 day penod in NC the maximum amount of Rainfall Energy that can be expected is 43 / of the annual total In this situation 43/ of RUSLE2 Required Volume Design Depth (ft) Proposed Basin Side Slopes Infiltration Analvam 33 72 ftj 3 � 0 1 side slopes Web Soil Survey h / /soiidatamartnres usda goy misec 11 0 Use Infiltration or 1� Skimmer Basm 10 Sat Hydraulic Con Ksat micro Soil Permeability in/hr Dewaterin Time (Days) Basin Design Minimum 2 1(L K9 Ratio Suggested To Width ft 3 Suggested Top Length (ft) 6 Final Design To Width ft 9 Final Design To Len ft 18 Final Design De ft 3 Weir Width ft 4 Skimmer Size (in) Is Onfice Diameter In 025 Dewatenng Time (Days) 10 V my St rage in'► 860 OK PAM must be introduced by a minimum of 1 Wrapped Type A Rock Silt Check or Wattle upgrade from this outlet device 'Nate ion the EC Nan whether the 30 or 60 Oy option is. usesf. GENERAL NOTES If the project Involves HQW or Trout Waters wattles in conjunction with PAM (polyacrylamide) must be Installed according 0 Rt Printed Jan 12, 2012 STEP 1 Input Protect Information items in red are REQUIRED Construction time Alexander < 6 months (YIN)? Y HQW (YIN)? N Elevation Level ll A # � I Trout (YIN)? N Tool ft Reviewed B From Sta 7 + 50 Level III A # to Ste 10 + 00 Right/left Rt No Elev Data / / Ditch Grade 5 000 /a Contributing RM Width 30 feet Length of Run X 250 feet Pia n SA &t- t / (' RQ SECTION 1 of 1 County Alexander • Location Pre ared By Date' Pre led LlYM`ifiOM - _ Level ll A # � I _ • Level III Ab"4 iratlon -IMPWM Reviewed B Date Reviewed Level III A # Level 111 A Expiration Disturbed Area = 017 acres Drainage Area 2 17 acres Drainage Area must equal or exceed the Disturbed Area found above Surface Dewatering Device Y Surface Dewatering Device must be utilized Answer Y Is this a Typical Section (YIN)? Y Will RUSLE2 be used to model the Non Typical sections? N Regression Constant, C 659 Table 2 7 (Level Ill Ref Manual) Rainfall Factor R 160 Figure 2 1 Erodibildy Factor K 024 Table 2 2 or Web Soil Survey (httpJ/sciddatamart nres usda govl) Soil Type Pacolet Rion informational purposes only STEP 2 Ditch Liner requirements Utilize the Required Liner tab and note recommendations on plans- STEP 3 Velocity Control Requirements Choose between Type B Rock Solt TYPE B ROCK SILT CHECKS spaced at 50 feet Checks or Wattles OR WATTLES See the HELP Tab for additional clanfication and an example on how to place on plans Start with Option 5 OPTION 4 Using RUSLE2 Analysis to determine required storage OPTION 4A For DRAINAGE AREA < 3 Acre Use 1FCRKs to determine storage Regression Constant C 659 Rainfall Factor R 160 Erodibility Factor K 024 From Step 1 above Sod Type Pacolet Rion Ddchlme Slope s 0 05000 Rift V= 103753 W /ac/yr Required Storage Volume 176 64 1`0 See Option 5 OPTION 4B For DRAINAGE AREA < 3 Acre Use RUSLE2 Modeling to determine storage Sediment Delivery from RUSLE2 0 00 tonslacre/yr Converting to ft3/aclyr NIA ft /aclyr Required Storage Volume= NIA ft See Option 5 OPTION 4C Using the Required Storage Volume from Option 4A or 4B to determine # of Wrapped TRSGA/Wattles Required These devices can be used to satisfy the velocity requirements in Step 3 Storage from Wrapped Type A Rock Silt Checks or Wattles Option of using Wrapped Type A Rock Silt Enter Ditch Front Slope Gradient (H V) ? 1 1 Checks or Wattles Enter Ditch Back Slope Gradient (H V) 15 1 Enter Device Height 15 ft Area Behind Device 3 94 fe Length of Ditch Behind Device 30 00 ft See Op lion 5 Storage Behind Device (assumes 65•/ effectency) F- 25 59 ft3 Wrapped TRSC- A/Wattles required X L - Go to-Option 5� Total N/A It COMMENTS Designer st if has the opt on of using Option 5 or 1 USE The 60 Day Option USE Infiltration Basin oR� OPTION 6 Alternative Designs IMPORTANT Before using Option 6 be sure that the information In Stop 1 is accurate= There may be cases where the RUSLE2 Analysis (Option 4) yields an excessive number of devices to achieve storage requirements and site constraints disallow infiltration and skimmer basin (option 5) installation Therefore it will be necessary to utilize the option below that best fits your situation The 60 Day Option Is not available for projects Involving HOW or Trout Waters "The minimum basin size for a skimmer to function property is 20 x10 If the basin dimensions are less than this size an Infiltration basin must be utilized regardless of dewatenng time 30 DAY OPTION_ Under these circumstances it will be necessary to provide a minimum of 23 / of the storage calculated using the RUSLE2 analysis (Option 4) during the Clearing and Grubbing Phase This section must then be permanently stabilized within 30 days from the time clearing and grubbing begins This is derived from Table 2 1 of the Level III Reference Manual which indicates that for any given 30 day period in NC the maximum amount of Rainfall Energy that can be expected is 23 / of the annual total In this situation 230/ of RUSLE2 Required Volume Design Depth (ft) Proposed Basin Side Slopes 1..614 -0— An.1 -1. 5011 ft' 3 1 5 1 side slopes Web Soil Survey (http / /soildatamart nres usda ovi) misec 0 0 Skimmer Bas, 0 00 Required WA Sat' Hydraulic Cori (K at, micro Sod Permeabil in/hr Dewaterin Time (Days) Basin Design Minimum 2 1(L lA� Ratio Suggested To Width ft 3 Suggested Top Length (ft) Suggested Top Length (ft) 6 Final Design To Width ft Final Design To Width ft 5 Final Desi n To Len ft Final Design To Len ft 10 Final Design De ft Final Design De ft 3 Weir Width ft Weir Width ft 4 Skimmer Size (in) Skimmer Size (in) is Orifice Diameter m Onfice Diameter in 025 Dewatenng Time (Days) Dewaterin Time (Days) 1 Verify storage (n') V rify St rage (ft') 5250 OK PAM must be introduced by a minimum of 1 Wrapped Type A Rock Silt Check or Wattle upgrade from this outlet device Wattles are required for Trout or HQW waters 60 DAY OPTION Under these circumstances it will be necessary to provide a minimum of 43 / of the storage calculated using the RUSLE2 analysis (Option 4) during the Clearing and Grubbing Phase This section must then be permanently stabilized within 60 days from the time clearing and grubbing begins This is derived from Table 2 1 of the Level III Reference Manual which indicates that for any given 60 day period in NC the maximum amount of Rainfall Energy that can be expected is 43 / of the annual total In this situation 43/ of RUSLE2 Required Volume Design Depth (ft) Proposed Basin Side Slopes 93 68 ft' 3 1 5 1 side slopes Web Soil Survey (htfp / /soildatamart.nres usda govo misec 11 2 Use Infiitrahon or 1 56 Skimmer Basin 10 Sat Hydraulic Con Ksat micro Soil Permeability in /hr Dewatenn Time (Days) Basin Design Minimum 2 1(L lAq Ratio Suggested To Width ft 4 Suggested Top Length (ft) 8 Final Design To Width ft 9 Final Desi n To Len ft 18 Final Design De ft 3 Weir Width ft 4 Skimmer Size (in) is Orifice Diameter m 023 Dewatenng Time (Days) 4 Verify storage (n') 20250 OK D PAM must be introduced by a minimum of 1 Wrapped Type A Rock Silt Check or Wattle upgrade from this outlet device �!Vite n theTEC Flan whefhelihe�30 er i0jitay �'tiiniis us_ed�I GENERAL NOTES if the project involves HQW or Trout Waters wattles in conjunction with PAM (polyacrylamide) must be installed according d F v If 1 1 y R�� '�c✓^k&x s��4 '�.: ` 'ax,- a'x yl .zlry �i��"!`, _,�;, t � ,�_ I bra• .�,a �!'' •� y� r3 I�- �+..�;.� -� " } �, � '�vf j�'� '�'� `'�� 4�'Y� el `vim � i ,''�•+, �,r, ,pia '�Y�3. �h i � �_� { • � iL �,. t�''- �'� �" � ` g 4°�'�.r = h, .�.a* - _ _ ... _ . .fro.. t-,� •.. ..'�. '•. - -. .= ..•. 1 r STEP 1 Input Project Information items in red are REQUIRED Construction time Alexander L.J"ERODES l b` iMMK3 — < 6 months (YIN)? Y Level III A #.._ HQW (YIN)? N _ Elevation Trout (YIN)? N Tool ft From Sta F 10 + 00 to Sta F 12 + 00 Right/Left Rt No Elev Data / / Ditch Grade 4 000 Ao Contributing RIW Width 30 feet Length of Run X 200 feet Disturbed Area = 014 acres Plan Shoo a SECTION 1 of 1 ORf- County Location Pre i red By Alexander L.J"ERODES l b` iMMK3 — DaffPr'e area UTTIHIM - Level III A #.._ _ e Level III A Ex i6t-lon -__ _ _ Reviewed B Date Reviewed i Level III A# Level III A Expiration Drainage Area 1 1 acres Drainage Area must equal or exceed the Disturbed Area found above Surface Dewatenng Device Y Surface Dewatenng Device must be utilized Answer Y Is this a Typical Section (YIN)? Y Will RUSLE2 be used to model the Non Typical sections? N Regression Constant, C 659 Table 2 7 (level ill Ref Manual) Rainfall Factor R 160 Figure 2 1 Erodibility Factor K 024 Table 2 2 or Web Soil Survey (http//soi/datamart nrcs usda gow) Soil Type Pacolet Rion informational purposes only STEP 2 Ditch Liner requirements Utilize the Required Liner tab and note recommendations on plans STEP 3 Velocity Control Requirements Choose between Type B Rock Silt TYPE B ROCK SILT CHECKS spaced at 67 feet Checks or Wattles OR WATTLES See the HELP Tab for additional clarification and an example on how to place on plans Start with Option 5 OPTION 4 Using RUSLE2 Analysis to determine required storage OPTION 4A For DRAINAGE AREA < 3 Acre Use IF -CRKs to determine storage Regression Constant C 659 Rainfall Factor R 160 Erodibility Factor K 024 From Step 1 above Soil Type Pacolet Rion Ditchline Slope s 0 04000 tuft V= 83002 It /ac/yr Required Storage Volume= F 11433 fe See Option 5 OPTION 48 For DRAINAGE AREA < 3 Acre Use RUSLE2 Modeling to determine storage Sediment Delivery from RUSLE2 0 00 tons/acrelyr Converting to Olac/yr WA ft° /acryr Required Storage Volume= ---NIA fe See Option 5 OPTION 4C Using the Required Storage Volume from Option 4A or 4B to determine # of Wrapped TRSC- A/Watf/es Required These devices can be used to satisfy the velocity requirements in Step 3 Storage from Wrapped Type A Rock Silt Checks or Wattles Option of using Wrapp d Type A Rock Silt Enter Ditch Front Slope Gradient (H V) 2 1 I Checks or Wattles Enter Ditch Back Slope Gradient (H io 15 1 Enter Device Height 1 5 ft Area Behind Device 394 If Length of Ditch Behind Device 37 50 ft See Option 5 Storage Behind Device (assumes 651 effeclency) � 31 99 ft Wrapped TRSC- AANatties required X{ Go to Option 5 Total NIA ft° COMMENTS Designer still has the option of using I USE 60 Day Option USE Infiltration Basin )phon 5 or 6 OPTION 6 Aflemative Designs IMPORTANT Before using Option 6 be sure that the information In Step 1 is accurate) There may be cases where the RUSLE2 Analysis (Option 4) yields an excessive number of devices to achieve storage requirements and site constraints disallow infiltration and skimmer basin (option 5) installation Therefore it will be necessary to utilize the option below that best fits your situation The 60 Day Option is not available for projects involving HOW or Trout Waters —The minimum basin size for a skimmer to function properly Is 20 x10 If the basin dimensions are less than this size an infiltration basin must be utilized regardless of dewatering time 30DAY(OP,TIONj� Under these circumstances it will be necessary to provide a minimum of 23 / of the storage calculated using the RUSLE2 analysis (Option 4) during the Clearing and Grubbing Phase This section must then be permanently stabilized within 30 days from the time clearing and grubbing begins This is derived from Table 2 1 of the Level III Reference Manual which indicates that for any given 30 day period In NC the maximum amount of Rainfall Energy that can be expected is 23 / of the annual total In this situation 23 / of RUSLE2 Required Volume Design Depth (ft) Proposed Basin Side Slopes Infiltr hnn Analvcie 32 07 ft? F 1 5 1 side slopes Web Sod Survey h ! /soddatamart nres usda gov m /sec 0 0 Skimmer Basm 0 00 Required NIA Sat Hydraulic Con (Ksat micro Soil Permeability m /hr Dewatenn Time (Days) Basin Design Minimum 2 1(L K Ratio Suggested To Width ft 3 Suggested To Length (ft) 6 Final Design To Width ft 5 Final Design To Len ft 10 Final Design De ft 3 Weir Width ft 4 Skimmer Size (in) Is Orifice Diameter in 025 Dewaterin Time (Days) 1 Verity Storage (R') 52 50 OK PAM must be introduced by a minimum of 1 Wrapped Type A Rock Silt Check or Wattle upgrade from this outlet device Wattles are required for Trout or HOW waters 60_DAYJOP,�TION Under these circumstances it will be necessary to provide a minimum of 43 / of the storage calculated using the RUSLE2 analysis (Option 4) during the Clearing and Grubbing Phase This section must then be permanently stabilized within 60 days from the time clearing and grubbing begins This is derived from Table 2 1 of the Level III Reference Manual which indicates that for any given 60 day period in NC the maximum amount of Rainfall Energy that can be expected is 43 / of the annual total In this situation 43/6 of RUSLE2 Required Volume Design Depth (ft) Proposed Basin Side Slopes Infiltration Analvsis 59 95 fe 3 1 5 1 side slopes Web Soil Survey http / /soildatamartnres usda goyiI misec 11 2 Use Infiltration or 1 56 Skimmer Basin 10 Sat Hydraulic Con Ksat micro Soil Permeability In/hr Dewatenn Time (Days) Basin Design Minimum 2 1(L Vlq Ratio Suggested To Width ft 4 Suggested Top Length (ft) 8 Final Design To Width ft 9 Final Design To Len ft 18 Final Design De it 3 Weir Width ft 4 Skimmer Size (in) Is Orifice Diameter in 025 Dewatenng Time (Days) 4 V rHy Storage (it') 202 50 OK PAM must be introduced by a minimum of 1 Wrapped Type A Rock Slit Check or Wattle upgrade from this outlet device 'Note in the ECTIan whether the 3,0 er 40 afaieptien is used. _ _ GENERAL NOTES If the project involves HOW or Trout Waters wattles in conjunction with PAM (polyacrylamide) must be installed according 0 R¢ a� �4 7 3TT E Sfa 10 60 lo? faG a � Printed Jan 12, 2012 flan Sh��t a STEP 1 Input Project Information items in red are REQUIRED Construction time Mexander s . . Emusion < 6 months (YIN)? Y Date Prepared HQW (YIN)? N Elevation Reviewed B Trout (YIN)? N Tool ft From Sta F1-2+ 00 to Sta 1 16 + 00 Right/Left Rt No Elev Data / / Ditch Grade 4 000 % Contributing RIW Width 30 feet Length of Run X 400 feet SECTION 1 of 1 GQ Rt County Location Mexander s . . Emusion Pte ared By 2RIMAKI Date Prepared Level Ili A Level III A Ex Iration _ IMPIAM A • / Reviewed B > Date Reviewed Level III A # Level III A Expiration Disturbed Area = 0 28 acres Drainage Area 2 34 acres Drainage Area must equal or exceed the Disturbed Area found above Surface Dewatenng Device N I Surtace Dewatenng Device must be utilized Answer Y Is this a Typical Section (YIN)? Y Will RUSLE2 be used to model the Non Typical sections? N Regression Constant, C 659 Table 2 7 (Level 111 Ref Manual) Rainfall Factor R 160 Figure 2 1 Erodibildy Factor K 024 Table 2 2 or Web Sort Survey (httpAsoildatamart nres usda govl) Soil Type Pacolet Rion informational purposes only STEP 2 Ditch Liner requirements Utdrre the Required Liner tab and note recommendations on plans. STEP 3 Velocity Control Requirements TYPE BROCK SILT CHECKS �� spacedat 67 feet Choose Type Rock Silt Chpecks ecks or Wattles OR WATTLES See the HELP Tab for additional clarification and an example on how to place on plans Start with Option 5 OPTION 4 Using RUSLE2 Analysts to determine required storage OPTION 4A For DRAINAGE AREA < 3 Acre Use V=CRKs to determine storage Regression Constant, C 659 Rainfall Factor R 160 Erodibddy Factor K 024 From Step 1 above Sod Type Pacolet Rion Ditchline Slope s 0 04000 ft/ft V= 83002 ft /actyr Required Storage Volume= F-2-2866 ft3 See Option 5 OPTION 4B For DRAINAGE AREA < 3 Acre Use RUSLE2 Modeling to determine storage Sediment Delivery from RUSLE2 0 00 tonslacre/yr Converting to ft3 /ac/yr NIA ft /actyr Required Storage Volume= F NIA ft3 See Option 5 OPTION 4C Using the Required Storage Volume from Option 4A or 4B to determine # of Wrapped TRSGA/Wattfes Required These devices can be used to satisfy the velocity requirements in Step 3 Storage from Wrapped Type A Rock Silt Checks or Wattles Option of using Wrapped Type A Rock Silt Enter Ditch Front Slope Gradient (H 10 2 1 Checks or Wattles Enter Ditch Back Slope Gradient (H 10 15 1 Enter Device Height 1 5 ft Area Behind Device 3 94 f? Length of Ditch Behind Device 37 50 ft 3 See Option 5 Storage Behind Device (assumes 651 effectency) 319 ft Wrapped TRSGA/Warges required X Go to Option 5 Total NIA ft COMMENTS Designer still has the option of using Opt on 5 or USE 60 Day Option USE Infiltration Basin OPTION 6 Aftematrve Designs IMPORTANT Before usin O tion 6 be sure that the information in Step 1 is accurate! There may be cases where the RUSLE2 Analysis (Option 4) yields an excessive number of devices to achieve storage requirements and site constraints disallow Infiltration and skimmer basin (option 5) installation Therefore it will be necessary to utilize the option below that best fits your situation The 60 Day Option Is not available for projects involving HOW or Trout Waters —The minimum basin size for a skimmer to function properly is 20 x10 If the basin dimensions are less than this size an infiltration basin must be utilized regardless of dewatering time 30 DAY OPTION Under these circumstances it will be necessary to provide a minimum of 23 / of the storage calculated using the RUSLE2 analysis (Option 4) during the Clearing and Grubbing Phase This section must then be permanently stabilized within 30 days from the time clearing and grubbing begins This is derived from Table 2 1 of the Level III Reference Manual which indicates that for any given 30 day period in NC the maximum amount of Rainfall Energy that can be expected is 23 / of the annual total In this situation 23 / of RUSLE2 Required Volume Design Depth (ft) Proposed Basin Side Slopes Infiltration snnivsic T7-1 6414 ft' L 1 5 1 side slopes Web Soil Survey htt J /soildatamart nres usda gov misec 0 0 Skimmer Basin 0 00 Required N/A Sat Hydraulic Con (Ksat micro Soil Permeability in/hr Dewaterin Time (Days) Basin Design Minimum 2 1(L K9 Ratio Su ested To Width ft 4 Suggested Top Length (ft) 8 Final Design Top Width it _ 5 Final Design To Len ft 10 Final Design De ft 3 Weir Width ft -,- 4 Skimmer Size (in) is Orifice Diameter in 025 Dewaten Time (Days) 1 V rlfy St rage ire'! 52 50 Too Low PAM must be introduced by a minimum of 1 Wrapped Type A Rock Silt Check or Wattle upgrade from this outlet device Wattles are required for Trout or HOW waters 60 DAY OPTION Under these circumstances it will be necessary to provide a minimum of 43 / of the storage calculated using the RUSLE2 analysis (Option 4) during the Clearing and Grubbing Phase This section must then be permanently stabilized within 60 days from the time clearing and grubbing begins This is derived from Table 2 1 of the Level III Reference Manual which indicates that for any given 60 day period in NC the maximum amount of Rainfall Energy that can be expected is 43 / of the annual total In this situation 43 / of RUSLE2 Required Volume Design Depth (ft) Proposed Basin Side Slopes Infilhr lh.n An.ly m 11991 ft3 3 W 1 5 1 side slopes Web Soil Survey (http / /soildatamart nres usda gov m /sec 11 2 Use Infiltration or 1 57 Skimmer Basin 10 Sat Hydraulic Con Ksat, micro Soil Permeability m1hr Dewatenng Time (Days) Basin Design Minimum 2 1(L WJ Ratio Suggested To Width ft 5 Suggested Top Length (ft) 10 Final Design To Width ft 9 Final Design To Len ft 18 Final Design De ft 3 Weir Width ft 4 Skimmer Size (in) Is Orifice Diameter m 026 Dewatering Time (Days) 4 Verity storage (n') 202 50 OK PAM must be introduced by a minimum of 1 Wrapped Type A Rock Silt Check or Wattle upgrade from this outlet device N,te ,n fh'e E'C /an wh'e_ther fNe 3011i0��layi,'ORR is used :. GENERAL NOTES if the project involves HOW or Trout Waters wattles in conjunction with PAM (polyacrylamide) must be installed according � � � �„• '� �� ,tjtF{'.� #' •� �' ~i. ,� �j� : t � � -� ` �_ ti' �„i� •1 r ate ' _'�• - r �t.' . :�� Sy r .'�,, `. y ..4 ...''1 y. .a1 -�� .�i � }s - � +fit. "`.t ,�.. ? � � ..L �, S` � .�' .ay x �i o ? ,�.� >r tls e„'�i kCi{•J�r '� �.'.1_�y, i :-. . • i F..! i � �Y y � 1�• 1 �l � i � y1 �'+�+L„j �y't`',f'�i f i # � �� ew � �.• ,� •�', ,.tit � `'.' d lFn�•''r l,� `�i; �`3# - ",, � ri �. � �k• " �yS - J�J .off _ . a. �'a: - , r � .; -?(� '_ ' t{ e= +�,. iw- f i* ,} JL r -i� n v,'7V •`+• 3ti a�: �. y•; ? Nih rT�t1 y yr... .+.} -a •„ .�� Yrr�' I F .f� .• - r a� x op %an SnpeA a STEP 1 Input Project Information items in red are REQUIRED SECTION 1 of 1 Construction time < 6 months (YIN)? Y HOW (YIN)? N Elevation Trout (Y /N)? N Tool ft _ From Ste 16 + 00 to Ste 19 + 00 RightlLeft Rt No Elev Data / / Ditch Grade 1 000 A OR,A Contributing RM Width 30 feet Length of Run X 300 feet Disturbed Area = 021 acres Drainage Area 1 59 acres Drainage Area must equal or exceed the Disturbed Area found above Surface Dewatenng Device Y Surface Dewatenng Device must be utilized Answer Y Is this a Typical Section (Y /N)? Y Will RUSLE2 be used to model the Non Typical sections? N County Alexander Location Pre ared +B -it- Gds 3+ • DEShin Date Pre ared — i Level III A# Level III A Expiration Reviewed B 1 Date Reviewed Level III A # { Level III A Expiration Regression Constant, C 659 Table 2 7 (Level Ill Ref Manual) Rainfall Factor R 160 Figure 2 1 Erodibility Factor K 024 Table 2 2 or Web Soil Survey (http Asoi /datamart nres usda gow) Soil Type Pacolet Rion informational purposes only STEP 2 Ditch Liner requirements Util¢e the Required Liner tab and note recommendations on -plans STEP 3 Velocity Control Requirements Velocity control is not required TYPES ROCK SILT CHECKS spaced at wA feet The outlet device frorn Option 4 5 OR WATTLES or 6 will be sufficient See the HELP Tab for additional clanfication and an example on how to place on plans Start with Option 5 OPTION 4 Using RUSLE2 Analysts to determine required storage OPTION 4A For DRAINAGE AREA < 3 Acre Use V=CRKs to determine storage Regression Constant C 659 Rainfall Factor R 160 Erodibility Factor K 024 From Step 1 above Soil Type Pacolet Rion Ditchline Slope s 0 01000 Wit V= 20761 ft' /ac/yr Required Storage Volume= 42 8671`0 See Op ton 5 OPTION 4B For DRAINAGE AREA < 3 Acre Use RUSLE2 Modeling to determine storage Sediment Delivery from RUSLE2 0 00 tons /acretyr Converting to It3/aC/yr N/A ft' /ate Required Storage Volume= F NIA ft3 See Option 5 OPTION 4C Using the Required Storage Volume from Option 4A or 4B to determine # of Wrapped TRSC- A/Wattles Required These devices can be used to satisfy the velocity requirements in Step 3 Storage from Wrapped Type A Rock Silt Checks or Wattles Option of using Wrapped Type A Rock Silt Enter Ditch Front Slope Gradient (H W 2 1 Checks or Wattles Enter Ditch Back Slope Gradient (H 10 15 1 Enter Device Height 1 5 It T Area Behind Device 3 94 fe Length of Ditch Behind Device 150 00 ft See Option 5 Storage Behind Device (assumes 651 effeclency) 127 97 ft3 Wrapped TRSC- A/Wattles required X Go to Option 5 Total N/A ft' COMMENTS Designer still has the option or using i USE 60 Day Option USE Infiltration Basin 1 Wattle with PAM Will be added before last device )ption 5 or 6 Contributing RM Width 30 feet Length of Run X 300 feet Disturbed Area = 021 acres Drainage Area 1 59 acres Drainage Area must equal or exceed the Disturbed Area found above Surface Dewatenng Device Y Surface Dewatenng Device must be utilized Answer Y Is this a Typical Section (Y /N)? Y Will RUSLE2 be used to model the Non Typical sections? N County Alexander Location Pre ared +B -it- Gds 3+ • DEShin Date Pre ared — i Level III A# Level III A Expiration Reviewed B 1 Date Reviewed Level III A # { Level III A Expiration Regression Constant, C 659 Table 2 7 (Level Ill Ref Manual) Rainfall Factor R 160 Figure 2 1 Erodibility Factor K 024 Table 2 2 or Web Soil Survey (http Asoi /datamart nres usda gow) Soil Type Pacolet Rion informational purposes only STEP 2 Ditch Liner requirements Util¢e the Required Liner tab and note recommendations on -plans STEP 3 Velocity Control Requirements Velocity control is not required TYPES ROCK SILT CHECKS spaced at wA feet The outlet device frorn Option 4 5 OR WATTLES or 6 will be sufficient See the HELP Tab for additional clanfication and an example on how to place on plans Start with Option 5 OPTION 4 Using RUSLE2 Analysts to determine required storage OPTION 4A For DRAINAGE AREA < 3 Acre Use V=CRKs to determine storage Regression Constant C 659 Rainfall Factor R 160 Erodibility Factor K 024 From Step 1 above Soil Type Pacolet Rion Ditchline Slope s 0 01000 Wit V= 20761 ft' /ac/yr Required Storage Volume= 42 8671`0 See Op ton 5 OPTION 4B For DRAINAGE AREA < 3 Acre Use RUSLE2 Modeling to determine storage Sediment Delivery from RUSLE2 0 00 tons /acretyr Converting to It3/aC/yr N/A ft' /ate Required Storage Volume= F NIA ft3 See Option 5 OPTION 4C Using the Required Storage Volume from Option 4A or 4B to determine # of Wrapped TRSC- A/Wattles Required These devices can be used to satisfy the velocity requirements in Step 3 Storage from Wrapped Type A Rock Silt Checks or Wattles Option of using Wrapped Type A Rock Silt Enter Ditch Front Slope Gradient (H W 2 1 Checks or Wattles Enter Ditch Back Slope Gradient (H 10 15 1 Enter Device Height 1 5 It T Area Behind Device 3 94 fe Length of Ditch Behind Device 150 00 ft See Option 5 Storage Behind Device (assumes 651 effeclency) 127 97 ft3 Wrapped TRSC- A/Wattles required X Go to Option 5 Total N/A ft' COMMENTS Designer still has the option or using i USE 60 Day Option USE Infiltration Basin 1 Wattle with PAM Will be added before last device )ption 5 or 6 OPTION 6 A/tematfve Designs IMPORTANT Before using Option 6 be sure that the information in Step 1 is accurate! There may be cases where the RUSLE2 Analysis (Option 4) yields an excessive number of devices to achieve storage requirements and site constraints disallow infiltration and skimmer basin (option 5) installation Therefore it will be necessary to utilize the option below that best fits your situation The 60 Day Option is not available for projects involving HQW or Trout Waters "The minimum basin size for a skimmer to funcbon property is 20x10 If the basin dimensions are less than this size an infiltmilon basin must be utilized regardless of dewatering time 301DAYd,OPTION Under these circumstances it will be necessary to provide a minimum of 23 / of the storage calculated using the RUSLE2 analysis (Option 4) during the Clearing and Grubbing Phase This section must then be permanently stabilized within 30 days from the time clearing and grubbing begins This is derived from Table 2 1 of the Level 111 Reference Manual which indicates that for any given 30 day period in NC the maximum amount of Rainfall Energy that can be expected is 23 / of the annual total In this situation 23 / of RUSLE2 Required Volume Design Depth (ft) Proposed Basin Side Slopes Infimratinn Analvsis 12 03 fe 3 1 7 1 5 1 side slopes Web Soil Survey h / /sorldatamartnres usda govn misec 0 0 Skimmer Basin 0 00 Required WA Sat. Hydraulic Con (Ksat micro Soil Permeability in/hr Dewaterin Time (Days) Basin Design Minimum 2 1(L W) Ratio Suggested To Width ft 2 Suggested Top Length (ft) Suggested To Length (ft) 4 Final Design To Width ft Final Design To Width ft 5 Final Design To Len ft Final Design To Len ft 10 Final Design De ft Final Design De ft 3 Weir Width ft Weir Width ft 4 Skimmer Size (in) Skimmer Size (in) 1 5 Orifice Diameter in Orifice Diameter in 025 Dewatering Time (Days) Dewatenn Time (Days) 1 V rFiy Storag (R') Verify Storage (fe) 52 5 PAM must be introduced by a minimum of 1 Wrapped Type A Rock Silt Check or Wattle upgrade from this outlet device Wattles are required for Trout or HOW waters 60 DAY OPTION Under these circumstances it will be necessary to provide a minimum of 43 / of the storage calculated using the RUSLE2 analysis (Option 4) during the Clearing and Grubbing Phase This section must then be permanently stabilized within 60 days from the time clearing and grubbing begins This is derived from Table 2 1 of the Level III Reference Manual which Indicates that for any given 60 day period in NC the maximum amount of Rainfall Energy that can be expected is 43 / of the annual total In this situation 43 / of RUSLE2 Required Volume Design Depth (ft) Proposed Basin Side Slopes Infiltrafinn Anaivsis 2248 ft' 3 � 1 5 1 side slopes Web Sod Survey (h / /soddatamart nres usda gov/) misec 9 0 Use Infiltration or 1 26 Skimmer Basin 12 Sat Hydraulic Con Ksat micro Soil Permeability in/hr Dewatenn Time (Days) Basin Design Minimum 2 1(L M Ratio Suggested To Width ft 2 Suggested Top Length (ft) 4 Final Design To Width ft 9 Final Design To Len ft 18 Final Design De ft 3 Weir Width ft 4 Skimmer Size (in) Is Orifice Diameter in 025 Dewatering Time (Days) 4 V rFiy Storag (R') 202 50 OK PAM must be introduced by a minimum of 1 Wrapped Type A Rock Silt Check or Wattle upgrade from this outlet device WiFfean the EC Plan whether the 30 or 60 days #tfen is used. GENERAL NOTES If the project involves HOW or Trout Waters wattles in conjunction with PAM (potyacrylamide) must be installed according ;, _ v < w •f' " cis,' tVII ,v }' MV`�rr ti ,v � 1 _-'.. S JF -.' -,� •'. Y `� Y { y�,t� � t F ,(r.•4} �.S'+�xt i '. � "R��. � I• 1 -. q `'i� � j iij.r ,£ 'f � +xiJ V -' .. v I J •t ! t ��i_I! ,y�i. ,: k .d Y; 1 j • {` - '1 ' � #ir,•L t \ '�c t� (� � a r _ y x ''� ' '1" �. a t4 .,�") ' 4 - -'. .�' • r k; wr ,R' Jjj��' ��* it )j F fi• ,.F .''fit -:� �r,' C �h1 'rtY .} r 'is'�� T � J \ •' ' �e S � t .� , J".+ wry ..� � •-,"� .' � 3 -3..`� ,) ... r y '? Y' Ly.° _7 7 - �'h1 C ._17: '♦P`y.A. 1 ., % S� s i° Iz u i a - - - �. eA F 7 '• _ �, � rr,1,'w =rv- ,) r �?` i �c ;�y a�'yyr n s��, p! l�4 'i F •S r it �; 3 _ � . � 1 3. � � � ^a $'3'zi'"' Y,�' ! • ` - STEP 1 Input Project Information items in red are REQUIRED Construction time < 6 months (YIN)? Y HOW (YIN)? N Elevation Trout (YIN)? N Tool ft From Sta 1 19 + 00 to Ste 1 22 + 00 7A Rt SECTION 1 of 1 Right/Left Rt No Elev Data / Level III A Expiration _ itioidekow / Ditch Grade 1 000 A Reviewed B Contributing Date Reviewed R1W Width 30 feet Level III A # Length of Run X 300 feet Level III A Expiration Disturbed Area = 021 acres Drainage Area 197 acres Drainage Area must equal or exceed the Disturbed Area found above Surface Dewatenng Device Y Surface Dewatenng Device must be utilized Answer Y Is this a Typical Section (YIN)? Y Will RUSLE2 be used to model the Non Typical sections? N Regression Constant, C 659 Table 2 7 (Level l/l Ref Manual) Rainfall Factor R 160 Figure 2 1 Erodibillty Factor K 024 Table 2 2 or Web Soil Survey (http Asoddatamart nres usda govQ Soil Type Pacolet Rion informational purposes only STEP 2 Ditch Liner requirements Utilize the Required Liner tab and note recommendations on plans. STEP 3 Velocity Control Requirements Velocity control is not required TYPE B ROCK SILT CHECKS spaced at N/A feet The outlet device from Option 4 5 OR WATTLES or 6 will be sufficient See the HELP Tab for additional clarification and an example on how to place on plans Start With Option 5 OPTION 4 Using RUSLE2 Analysis to determine required storage OPTION 4A For DRAINAGE AREA < 3 Acre Use V=CRKs to determine storage Regression Constant C 659 Rainfall Factor R 160 Erodibility Factor K 024 From Step 1 above Soil Type Pacolet Rion Ditchline Slope s 0 01000 Wit V= 20751 it /acJyr Required Storage Volume= 42 87 ft3 See Option 5 OPTION 46 For DRAINAGE AREA < 3 Acre Use RUSLE2 Modeling to determme storage Sediment Delivery from RUSLE2 0 00 tons /acrefyr Converting to ft3 /ac/yr. N/A It3laclyr Required Storage Volume= F NIA ft3 See Option 5 OPTION 4C Using the Required Storage Volume from Option 4A or 4B to determine # of Wrapped TRSC- AANatties Required These devices can be used to satisfy the velocity requirements in Step 3 Storage from Wrapped Tyne A Rock Silt Checks or Wattles Option of using Wrapped Type A Rock Silt Enter Ditch Front Slope Gradient (H V) 2 1 Checks or Wattles Enter Ditch Back Slope Gradient (H V) 15 1 Enter Device Height 1 5 It Area Behind Device 3 94 f? Length of Ditch Behind Device 150 00 ft See Option 5 Storage Behind Device (assumes 651 effeciency) 127 97 ft3 Wrapped TRSGAAWatties required X Go to Option 5 Total N/A ft COMMENTS Designer still has the option of using Option 5 or 6 USE 60 Day Option USE Infiltration Basin 1 Wattle with PAM Will be added before last device OPTION 6 A/temabve Designs IMPORTANT Before using Option 6 be sure that the information in Step 1 Is accurate! There may be cases where the RUSLE2 Analysis (Option 4) yields an excessive number of devices to achieve storage requirements and site constraints disallow Infiltration and skimmer basin (option 5) Installation Therefore it will be necessary to utilize the option below that best fits your situation The 60 Day Option is not available for projects Involving HOW or Trout Waters "The minimum basin size for a skimmer to function property Is 20 x10 If the basin dimensions are less than this size an Infiltration basin must be utilized regardless of dewatenng time 30 DAY OPTION_ Under these circumstances It will be necessary to provide a minimum of 23 / of the storage calculated using the RUSLE2 analysis (Option 4) during the Clearing and Grubbing Phase This section must then be permanently stabilized within 30 days from the time clearing and grubbing begins This is derived from Table 2 1 of the Level III Reference Manual which indicates that for any given 30 day period in NC the maximum amount of Rainfall Energy that can be expected is 23 / of the annual total In this situation 23 A of RUSLE2 Required Volume Design Depth (ft) Proposed Basin Side Slopes Infiltration Analvsis F-1203 fe 3 � 1 5 1 side slopes Web Sod Survey (http / /soildatamart nres usda gov/) misec 0 0 Skimmer Basm 0 00 Required NIA Sat Hydraulic Con (Ksat micro Soil Permeability in/hr Dewatenng Time (Days) Basin Design Minimum 2 1(L Ratio Su ested To Width ft 2 Suggested Top Length (ft) Suggested Top Len (ft) 4 Final Design To Width ft Final Design To Width ft 5 Final Design To Len ft Final Design To Len ft 10 Final Design Depth ft Final Design De ft 3 Weir Width ft Weir Width ft 4 Skimmer Size (in) Skimmer Size (in) 15 Onfice Diameter in Orifice Diameter in 025 Dewatenng Time (Days) Dewaterin Time (Days) 1 Verity Storage Ift ► V riry Storage (ft') 52 50 OK PAM must be introduced by a minimum of 1 Wrapped Type A Rock Silt Check or Wattle upgrade from this outlet device Wattles are required for Trout or HOW waters 60 DAY OPTION_ " Under these circumstances it will be necessary to provide a minimum of 43 / of the storage calculated using the RUSLE2 analysis (Option 4) during the Clearing and Grubbing Phase This section must then be permanently stabilized within 60 days from the time clearing and grubbing begins This is derived from Table 2 1 of the Level III Reference Manual which indicates that for any given 60 day period in NC the maximum amount of Rainfall Energy that can be expected is 43 A of the annual total In this situation 43 / of RUSLE2 Required Volume Design Depth (ft) Proposed Basin Side Slopes Infiltration Analvsis 22 48 fC' 3 V 1 5 1 side slopes Web Sod Survey (http / /soildatamart nres usda ovn m /sec 9 0 Use Infiltration or 1 26 Slimmer Basin 12 Sat Hydraulic Con Ksat micro Soil Permeability inthr Dewatenn Time (Days) Basin Design Minimum 2 1(L Ratio Suggested To Width ft 2 Suggested Top Length (ft) 4 Final Design To Width ft 9 Final Design To Len ft 18 Final Design Depth ft 3 Weir Width ft 4 Skimmer Size (in) 15 Onfice Diameter in 025 Dewatenng Time (Days) 4 Verity Storage Ift ► 202 50 OK PAM must be Introduced by a minimum of 1 Wrapped Type A Rock Silt Check or Wattle upgrade from this outlet device N�tetan ihejEC fla�wh`efh p h�30 er i0��ay�'�i'fi�n is used GENERAL NOTES If the project involves HOW or Trout Waters wattles in conjunction with PAM (polyacrylamide) must be installed according �, ... . � +� 3 Y r t7! i"'SC L. ,T�} 1�'�"` '=�5* • k.,y'F � � �.t : ,+•" ;t' s J � , � �' ^ ,. rl y. tj . ::U • y � _ °` - 5 _ re�r,r - rl a. � 3� " f ^? � 'd ,V' � J � • .f; � s a # , j • a ! _i. z •{5��.� - �"5.�"'T c`;%R��`'t d. � f • t�� �� �' §�• -,� '�.f ,�' �� + (.. <'P .r `- J rt t 4 'F 1 f "'' r t'L fv�f �G, ) f Cj +aa• � � � - a _� ; ' r t F� •r ikt .j -� `fi ft �� �•rr -, �# � s/ � � Ian T�}�� 4 ~Y ~�_ ;� ':� � � k` �I .:�- � -� ' ♦ if try ..T t� C.� ' ,•,' cl• � �sr� ,�rf 'r e ~F'�.{ ��" � � �7 � �� ,�' �'' , �F �ja� -: t-a ,• r.�A tfi�asK' 4 '� i Lr"-g lot FF t t;x 1 t t+} ..L ,� "ir4+ • ,' ,:' $� _ 1 �,•i -N` ►.`•. -'+�,r r<'4`sx.a e } + - iAr f Je oj . �� •., - ._,,,�_.. -�_._ .r ,� i.. _ ,. `{`." '`�i� '•ate- �t�ay.- �s. }I �.i4 ��H� _ p -'S' T 'F t .a..q ... v r I} - . f 1 r f `'• J l _ Ell Yr I _ F 4.-.. .+ • _ C4 - 8 1+l� At .$ ffjj n • r,l � � � Y� � S' tAX� �� Ate• -. STEP 1 Input Project information items in red are REQUIRED Construction time Alexander < 6 months (YIN)? Y HOW (YIN)? N Elevation Pre ared B' Trout(Y /N)? N {Tool ft 1 From Sta 22 + 00 Date Reviewed Level III A # to Sta 1 24 + 75 Right/Left Rt No Elev Data / / Ditch Grade 1 000 A Contributing RIW Width 30 feet Length of Run X 275 feet p/an 5At" f 3 SECTION 1 of 1 M(J-- 5 County Alexander Location G�`tt7RMtz + 4_ IBM Pre ared B' Date -'Pre red - Level III A 1 Level III A Ex irabon _ &� Reviewed B t Date Reviewed Level III A # Level III A Expiration Disturbed Area = 0 19 acres Drainage Area 131 acres Drainage Area must equal or exceed the Disturbed Area found above Surface Dewatering Device Y Surface Dewatenng Device must be utilized Answer Y Is this a Typical Section (Y /N)? Y Will RUSLE2 be used to model the Non Typical sections? N Regression Constant, C 659 Table 2 7 (Level 111 Ref Manual) Rainfall Factor R 160 Figure 2 1 Erodibillty Factor K 024 Table 2 2 or Web Soil Survey (http Asoddatamait nres usda gow) Soil Type Pacolet Rion informational purposes only STEP 2 Ditch Liner requirements Utilize the Required Liner tab and note recommendations on plans STEP 3 Velocity Control Requirements Velocity control is not required TYPES ROCK SILT CHECKS 0 spacedat NIA feet The outlet device from Option 4 5 OR WATTLES or 6 will be sufficient See the HELP Tab for additional clarification and an example on how to place on plans Start with Option 5 OPTION 4 Using RUSLE2 Analysis to determine required storage OPTION 4A For DRAINAGE AREA < 3 Acre Use V-CRKs to determine storage Regression Constant C 659 Rainfall Factor R 160 Erodibility Factor K 024 From Step 1 above Sod Type Pacolet Rion Ditchline Slope s 0 01000 Wit V= 20751 ft' /aGyr Required Storage Volume= F 39 30 ft3 See Option 5 OPTION 4B For DRAINAGE AREA < 3 Acre Use RUSLE2 Modeling to determine storage Sediment Delivery from RUSLE2 0 00 tons /acre/yr Converting to ft 3 /aclyr N/A ft /actyr Required Storage Volume= NIA ft3 See Option 5 OPTION 4C Using the Required Storage Volume from Option 4A or 4B to determine # of Wrapped TRSC- A/Wattles Required These devices can be used to satisfy the velocity requirements in Step 3 Storage from Wrapped Type A Rock Silt Checks or Wattles Option of using Wrapped Type A Rock Silt Enter Ditch Front Slope Gradient (H V9 2 1 I Checks or Wattles Enter Ditch Back Slope Gradient (H to 1 5 1 Enter Device Height 15 ft Area Behind Device 3 94 fe Length of Ditch Behind Device 150 00 ft 3 See Option 5 Storage Behind Device (assumes 65'/ effedency) 12797 ft Wrapped TRSGAlWatt/es required X Go to Option 5 Total N/A ft COMMENTS Designer still has the option of using Option 5 or 6 USE 60 Day Option USE Infilration Basin OPTION 6 Alternative Designs IMPORTANT Before using O tion 6 be sure that the information in Stop 1 Is accurate! There may be cases where the RUSLE2 Analysts (Option 4) yields an excessive number of devices to achieve storage requirements and site constraints disallow infiltration and skimmer basin (option 5) installation Therefore it will be necessary to utilize the option below that best fits your sduabon The 60 Day Option Is not available for projects Involving HOW or Trout Waters "The minimum basin size for a skimmer to function properly is 20 x10 If the basin dimensions are less than this size an infiltration basin must be utilized regardless of dewatering time 30]DAY(QPTI0 Nt♦ Under these circumstances it will be necessary to provide a minimum of 23 / of the storage calculated using the RUSLE2 analysis (Option 4) during the Clearing and Grubbing Phase This section must then be permanently stabilized within 30 days from the time clearing and grubbing begins This is derived from Table 2 1 of the Level Ili Reference Manual which indicates that for any given 30 day period in NC the maximum amount of Rainfall Energy that can be expected is 23 / of the annual total In this situation 23 / of RUSLE2 Required Volume Design Depth (ft) Proposed Basin Side Slopes Infiltrahen Analvgm 1102­11111? 3 � 1 5 1 side slopes Web Soil Survey h / /soildatamart nres usda gov m/sec 0 0 Skimmer Basin 0 00 Required WA Sat Hydraulic Con (Ksat micro Soil Penmeabil m1hr Dewaten Time (Days) Basin Design Minimum 2 1(L tM1q Ratio Suggested T Width ft 2 Suggested Top Length (ft) 4 Final Design To Width ft 5 Final Design To Len ft 10 Final Design ft 3 Weir Width 11 4 Skimmer Size (in) Is Orifice Diameter in 025 Dewatenn Time (Days) 1 V rift' Storage (f e) 5250 OK PAM must be introduced by a minimum of 1 Wrapped Type A Rock Silt Check or Wattle upgrade from this outlet device Wattles are required for Trout or HQW waters 60]DAY(OPTION= Under these circumstances it will be necessary to provide a minimum of 43 / of the storage calculated using the RUSLE2 analysis (Option 4) during the Clearing and Grubbing Phase This section must then be permanently stabilized within 60 days from the time clearing and grubbing begins This is derived from Table 2 1 of the Level III Reference Manual which indicates that for any given 60 day period in NC the maximum amount of Rainfall Energy that can be expected is 43 / of the annual total In this situation 43 A of RUSLE2 Required Volume Design Depth (ft) Proposed Basin Side Slopes Infiltration Anahrsis 20 61 fe 3 1 5 1 side slopes Web Soil Survey (h / /soildatamart nres usda gov m /sec 86 1 Use Infiltration or 12 OS Skimmer Basin 01 Sat Hydraulic Con Ksat, micro Soil Permeability in/hr Dewatenn Time (Days) Basin Design Minimum 2 1(L iM1q Ratio Suggested To Width ft 2 Suggested Top Length (ft) 4 Final Design T Width ft 9 Final Design To Len ft 18 Final Design ft 3 Weir Width ft 4 Skimmer Size (in) Is Orifice Diameter in 025 Dewatenng Time (Days) 4 Verify Storage (ft') 2 O 50 OK PAM must be introduced by a minimum of 1 Wrapped Type A Rock Silt Check or Wattle upgrade from this outlet device GENERAL NOTES If the project involves HQW or Trout Waters wattles to conjunction with PAM (polyacrylamide) must be installed according 'd � }. t'.t� �. v •` _ -" q�,- 1''i�'R�' `�.e utxs -� �... _ i (,y,.., ,. +i',:i. ..�,' 1F 4 `L ''R• j{. Ma T_ ( te JL 3 ync r., ,� r 'i't � �'•d Q ?' r ��. .' � t �- < '+,rr yr, *� s!� ;�� � �.• � ! � � + -, , % •�f� . +. "+r a�'?'k. `'" �' rrY.f cT . r t ,rt,.} rig ,t . r'S '� :pd u �ir� �`ri��- 3 ,� � t' '��i . ;. #' - "� � -t. - 'y „�jtc. i -� � • / Y r., r i �y r. t� .j �.2.'..d J.�' fx •f -� �+ ; :� ,� !s,.$ 1. s at e+'t �� yr.` ..,� j a:.,'f. 5i 4 � �� ,j}.d � •!S.! 2 }� � �� _� x ��� �. �` Y, :,41 'L 7 �! s ,�I � .� �� , a.t +� ' C_ ^3 r •fir "' r>w .f� ._ .ry a .!, t l -� y ,..a T r s � ' i•� v i�{ Q . i �� +t` `. ✓" ,t �, at* y S ++„�, ..,.3 i A � �r ���::, �, 1,� � c.� ' °If � T ''4T� r-+t ��. � .=s ,}��'.+.k1�,'7"t. JY�r1� ✓y .,.'` A. Ce Ip�, { "'` *•.�"' ? f`}J 1' a `. r.{ •3 t„��,. i *�f'�S�r;✓ }Ff�^a.'�Ac. 'i, t j, err' its Y. 4 t 5 .4 YS PIP. 7 D •�. -� t .' � � �. � } �.• �- 1, q F ` �h P ft �C} � o � s � t R 'ice a , y � f • r ' s� ;� t ,� s� �s }Y' .. STEP 1 Input Project Information Items in red are REQUIRED Construction time < 6 months (YIN)? Y HQW (YIN)? N Elevation Trout (YIN)? N Tool ft From Sta 1 22 + 00 ® L t- SECTION 1 of 1 to Sta 1 24 + 75 Levehlll A # n— ' _ x 4 Right/Left Lt No Elev Data / Level 111 A Expiration �, v / Ditch Grade 1 000 / Reviewed B Contributing Date Reviewed RM Width 30 feet Level III A # Length of Run X 275 feet Level III A Expiration Disturbed Area = 019 acres Drainage Area 02 acres Drainage Area must equal or exceed the Disturbed Area found above Surface Dewatenng Device N Is this a Typical Section (YIN)? Y Will RUSLE2 be used to model the Non Typical sections? N Regression Constant C 659 Table 2 7 (Level 111 Ref Manual) Rainfall Factor R 160 Figure 2 1 Erodibility Factor K 024 Table 2 2 or Web Sort Survey (httpAsoddatamartnres usda govQ Sod Type Pacolet Rion Informational purposes only STEP 2 Ditch Liner requirements Utilize the Required Liner tab and note recommendations on plans STEP 3 Velocity Control Requirements Velocity control is not required TYPE B ROCK SILT CHECKS DO spaced at NIA feet The outlet device from Option 4 5 OR WATTLES or 6 will be sufficient See the HELP Tab for additional clarification and an example on how to place on plans Start with Option 4A OPTION 4 Using RUSLE2 Analysis to determine required storage OPTION 4A For DRAINAGE AREA < 3 Acre Use V=CRKs to determine storage Regression Constant C 659 Rainfall Factor R 160 Erodibility, Factor K 024 From Step 1 above Sod Type Pacolet Rion Ditchline Slope s 0 01000 ftift V= 20751 it /ac/yr Required Storage Volume= 39 30 ft, Using 82 / of Rainfall Factor see note in cell C4 Move on to Option 4C OPTION 4B For DRAINAGE AREA < 3 Acre Use RUSLE2 Modeling to determine storage Sediment Delivery from RUSLE2 0 00 tons /acre/yr Converting to lt3/aclyr WA ft' /aclyr Required Storage Volume= N/A ft3 See Option 4A OPTION 4C Using the Required Storage Volume from Option 4A or 4B to determine # of Wrapped TRSC- A/Watt/es Required These devices can be used to satisfy the velocity requirements in Step 3 Storage from Wranoed Tyne A Rock Sift Checks or Wattles Option of using Wrapped Type A Rock Silt Enter Ditch Front Slope Gradient (H V) 2 1 I Checks or Wattles Enter Ditch Back Slope Gradient (H V) 15 1 Enter Device Height 1 5 ft GOOD Place measure(s) on EC Plan Start Area Behind Device 3 94 ft2 Length of Ditch Behind Device 150 00 ft with the first device close the outlet 3 paint as possible and then space a them evenly Storage Behind Device (assumes 65•/ effeciency) 12797 ft Wrapped TRSGA/WatUes required X 1 01 up the grade PAM should not be placed on Total 12797 ft the last BMP at outlet .vmmcri 10 Designer still has the option of us ng Option 5 or 6 2 (18 ) wattles Anll be used for storage = ( 256 cu ft) and a 6 x12 x2 TRSD B = (60 cu ft) will also be used Total storage =( 316 cu ft ) 'AM will be applied on the last wattle before the TRSD B STEP 1 Input Project Information items in red are REQUIRED Construction time i Alexander s < 6 months (YIN)? Y HQW (YIN)? N Elevation Level 111 A # Level 111 A Ex lrab6n Trout (YIN)? N Tool ft Date Reviewed From Sta 29 -00 Level III A Expiration to Sta 1 25 + 25 Right/Left Rt No Elev Data / / Ditch Grade 1 000 / Contributing WIN Width 30 feet Length of Run X 375 feet Q Rt SECTION 1 of 1 County Location i Alexander s s . a Prepared By RECL _ Date Prepared Level 111 A # Level 111 A Ex lrab6n _ _ e Reviewed B Date Reviewed i Level III A# Level III A Expiration Disturbed Area = 0 26 acres Drainage Area 1 28 acres Drainage Area must equal or exceed the Disturbed Area found above Surface Dewatenng Device Y I Surface Dewatenng Device must be utilized Answer Y Is this a Typical Section (YIN)? Y Will RUSLE2 be used to model the Non Typical sections? N Regression Constant, C 659 Table 2 7 (Level I// Ref Manual) Rainfall Factor R 160 Figure 2 1 Erodibility Factor K 024 Table 2 2 or Web Soil Survey (httpAsoddatamart nres usda gow) Soil Type Pacolet Rion informational purposes only STEP 2 Ditch Liner requirements Utilize the Required Liner tab and note recommendations on plans STEP 3 Velocity Control Requirements TYPE B ROCK SILT CHECKS 1 spaced at 188 feet Choose between Type B Rock Silt Checks or Wattles OR WATTLES See the HELP Tab for additional clarification and an example on how to place on plans Start With Option 5 OPTION 4 Using RUSLE2 Analysis to determine required storage OPTION 4A For DRAINAGE AREA < 3 Acre Use V =CRKs to determine storage Regression Constant C 659 Rainfall Factor R 160 Eroditi ty Factor K 024 From Step 1 above Sod Type Pacolet Rion Ditchline Slope s 0 01000 Wit V= 20751 ft /ac/yr Required Storage Volume= F 53 59 ft3 See Option 5 OPTION 4B For DRAINAGE AREA < 3 Acre Use RUSLE2 Modeling to determine storage Sediment Delivery from RUSLE2 0 00 tonslacre/yr Converting to ft3 /ac/yr NIA ft3 /actyr Required Storage Volume= F NIA ft3 See Option 5 OPTION 4C Using the Required Storage Volume from Option 4A or 4B to determine # of Wrapped TRSGA/Wattles Required These devices can be used to satisfy the velocity requirements in Step 3 Storage from Wrapped Type A Rock Silt Checks or Wattles Option of using Wrapped Type A Rock Silt Enter Ditch Front Slope Gradient (H V) 2 1 Checks or Wattles Enter Ditch Back Slope Gradient (H V) 15 1 Enter Device Height 1 5 ft Area Behind Device 3 94 fe Length of Ditch Behind Device 150 00 ft 3 See Option 5 Storage Behind Device (assumes 651 effeciency) 127 97 ft Wrapped TRSGA/Wattles required X Go to Option 5 Total NIA ft COMMENTS Designer still has the option of using USE Infiltration Basin USE 60 Day option )ption 5 or 6 OPTION 6 Altemative Designs IMPORTANT Before using Option 6 be sure that the information in Step 1 is accuratel There may be cases where the RUSLE2 Analysis (Option 4) yields an excessive number of devices to achieve storage requirements and site constraints disallow infiltration and skimmer basin (option 5) installation Therefore it will be necessary to utilize the option below that best fits your situation The 60 Day Option is not available for projects involving HQW or Trout Waters —The minimum basin size for a skimmer to function properly is 20 x10 If the basin dimensions are less than this size an infiltration basin must be utilized regardless of dewatering time 30 DAY OPTION Under these circumstances it will be necessary to provide a minimum of 23 / of the storage calculated using the RUSLE2 analysis (Option 4) during the Clearing and Grubbing Phase This section must then be permanently stabilized within 30 days from the time clearing and grubbing begins This is derived from Table 2 1 of the Level III Reference Manual which indicates that for any given 30 day period in NC the maximum amount of Rainfall Energy that can be expected is 23 / of the annual total In this situation 23 / of RUSLE2 Required Volume Design Depth (ft) Proposed Basin Side Slopes Infiltration Analysis 15 03 ft� 3 1 5 1 side slopes Web Soil Survey (http / /soildatamart nres usda govn m /sec 0 0 Skimmer Basm 0 00 Required Sat Hydraulic Con (Ksat micro Soil Permeability m/hr Dewatenng Time (Days) N/A Basin Design Minimum 2 1(L WJ Ratio Suggested To Width ft 2 Suggested Top Length (ft) 4 Final Design To Width ft 5 Final Design To Length ft 10 Final Design De ft 3 Weir Width ft 4 Skimmer Size (in) is Orifice Diameter in 025 Dewatenng Time (Days) 1 V riry storage (fl 5250 OK PAM must be introduced by a minimum of 1 Wrapped Type A Rock Silt Check or Wattle upgrade from this outlet device Wattles are required for Trout or HQW waters 60 DAY OPTION — Under these circumstances it will be necessary to provide a minimum of 43 / of the storage calculated using the RUSLE2 analysis (Option 4) during the Clearing and Grubbing Phase This section must then be permanently stabilized within 60 days from the time clearing and grubbing begins This is derived from Table 2 1 of the Level III Reference Manual which indicates that for any given 60 day period in NC the maximum amount of Rainfall Energy that can be expected is 43 / of the annual total In this situation 43 / of RUSLE2 Required Volume Design Depth (ft) Proposed Basin Side Slopes Infiltration Analvsis 28 1-5--lit 3 1 5 1 side slopes Web Soil Survey (http / /soildatamart nres usda govn Sat Hydraulic Con (Ksat micro Soil Permeability in /hr Dewatenng Time (Days) 01 Basin Design Minimum 2 1(L K9 Ratio Suggested To Width ft 3 Suggested Top Length (ft) 6 Final Design To Width ft 9 Final Design To Length ft 18 Final Design Depth ft 3 Weir Width ft 4 Skimmer Size (in) 15 Orifice Diameter in 025 Dewatenng Time (Days) 4 Venry Storag (te) 202 50 OK m /sec 86 0 Use infiltration or 12 04 Skimmer Basil PAM must be introduced by a minimum of 1 Wrapped Type A Rock Silt Check or Wattle upgrade from this outlet device GENERAL NOTES If the project involves HQW or Trout Waters wattles in conjunction with PAM (polyacrylamide) must be installed according nlm' a Printed Jan 23, 2012 STEP 1 Input Project Information items in red are REQUIRED Construction time Alexander < 6 months (YIN)? Y HOW (YIN)> N Elevation Date Prepared Trout (Y /N)? N Tool ft • i From Sta 27 + 00 Level 111 A Expiration to Sta 1 25 + 25 Length Ditch Behind Device STEP 2 Ditch Liner requirements Utilize the Required Liner tab and note recommendations on plans Right/Left Lt No Elev Data / / Ditch Grade 1 000 / Contributing OR WATTLES RIW Width 30 feet Length of Run X 175 feet (!!D Z-t SECTION 1 of 1 County Alexander V ® . EROsio,n DESign Location Pre ared B y ,i 'E3, Date Prepared Is this a Typical Section (YIN)? Y Level III A # Will RUSLE2 be used to model • i Level 111 A Ex irate n �{ — Reviewed B Date Reviewed Level III A # Regression Constant C 659 Table 2 7 (Level I// Ref Manual) Level 111 A Expiration Disturbed Area = 012 acres Storage from Wrapped Type A Rock Silt Checks or Wattles Drainage Area 0 12 acres Drainage Area must equal or exceed the Disturbed Area found above Enter Ditch Front Slope Gradient (H 110 Surface Dewatenng Device N Is this a Typical Section (YIN)? Y Enter Ditch Back Slope Gradient (H to Will RUSLE2 be used to model the Non Typical sections? N 1 5 ft Regression Constant C 659 Table 2 7 (Level I// Ref Manual) Rainfall Factor R 160 Figure 2 1 394 fiz Erodibility Factor K 024 Table 2 2 or Web Soil Survey (http Asoddatamart nrcs usda gov/) Soil Type Pacolet Rion informational purposes only Length Ditch Behind Device STEP 2 Ditch Liner requirements Utilize the Required Liner tab and note recommendations on plans STEP 3 Velocity Control Requirements Storage Behind Device (assumes 65•/ effectency) ( 127 97 ft3 Velocity control is not required TYPE 8 ROCK SILT CHECKS DO spaced at NIA feet The outlet device from Option 4 5 OR WATTLES or 6 will be sufficient See the HELP Tab for additional clarification and an example on how to place on plans Start with Option 4A OPTION 4 Using RUSLE2 Analysts to deter/nine required storage Total 12797 It OPTION 4A For DRAINAGE AREA < 3 Acre Use V =CRKs to determine storage Regression Constant, C 659 Rainfall Factor R 160 Erodibility Factor K 024 From Step 1 above Soil Type Pacolet Rion Ditchline Slope s 0 01000 ft/ft V= 20751 ft /actyr Required Storage Volume= 25 01 ft3 Using 82 / of Ra nfall Factor see note in cell C4 Move on to Option 4C OPTION 48 For DRAINAGE AREA < 3 Acre Use RUSLE2 Modeling to determine storage Sediment Delivery from RUSLE2 0 00 tons /acretyr Converting to ft'/actyr NIA ft /ac/yr Required Storage Volume= NIA ft3 See Option 4A OPTION 4C Using the Required Storage Volume from Option 4A or 4B to determine # of Wrapped TRSC- AANatt/es Required These devices can be used to satisfy the velocity requirements in Step 3 Storage from Wrapped Type A Rock Silt Checks or Wattles Option of using Wrapped Type A Rock Silt Enter Ditch Front Slope Gradient (H 110 2 1 Checks or Wattles Enter Ditch Back Slope Gradient (H to 15 1 Enter Device Height 1 5 ft h Behind Device Area Be 394 fiz GOOD Place measure(s) on EC Plan Start Length Ditch Behind Device 150 00 ft with the first device as close to the outlet Storage Behind Device (assumes 65•/ effectency) ( 127 97 ft3 Point possible and then space them evenly Wrapped TRSGA/Wattles required X ! 1 0 up the a grade PAM should not be placed on the last BMP at outlet Total 12797 It COMMENTS = (127 97cu ft ) and a 6 x12 x2 TRSD -B = ( 60 cu it ) will also be used Total storage =(187 97cu ft ) PAM will be applied on the last wattle before the TRSD B on 5 or STEP 1 Input Project Information items in red are REQUIRED Construction time < 6 months (Y/N)? Y HOW (YIN)? N Elevation Trout (Y /N)? N Tool 1t From Sta 1 32 + 50 �a Rr SECTION 1 of 1 to Sta 1 29 + 00 Level 111 A* Irm Right/Left. Rt No Elev Data / Level III A Ex irab n / Ditch Grade 1 000 / Reviewed B Contributing Date Reviewed RIW Width 30 feet Level III A # Length of Run X 350 feet Level III A Expiration Disturbed Area = 024 acres Drainage Area 114 acres Drainage Area must equal or exceed the Disturbed Area found above Surface Dewatenng Device Y Surface Dewatenng Device must be utilized Answer Y Is this a Typical Section (YIN)? Y Will RUSLE2 be used to model the Non Typical sections? N Regression Constant, C 659 Table 2 7 (Level III Ref Manual) Rainfall Factor R 160 Figure 2 1 Erodibildy Factor K 024 Table 2 2 or Web Soil Survey (blip Asoddatamartnres usda govl) Soil Type Pacolet Rion informational purposes only STEP 2 Ditch Liner requirements Utilize the Required Liner tab and note recommendations on plans STEP 3 Velocity Control Requirements TYPE B ROCK SILT CHECKS r� spaced at 175 feet Choe a between Type Rock Silt Checks a Wattll e OR WATTLES See the HELP Tab for additional clarification and an example on how to place on plans Start with Option 5 OPTION 4 Using RUSLE2 Analysts to determine required storage OPTION 4A For DRAINAGE AREA < 3 Acre Use V =CRKs to determine storage Regression Constant C 659 Rainfall Factor R 160 Erodibility Factor K 024 From Step 1 above Soil Type Pacolet Rion Ditchline Slope s 0 01000 ft/ft V= 20751 ft /ac/yr Required Storage Volume= 50 02 ft3 See Option 5 OPTION 4B For DRAINAGE AREA < 3 Acre Use RUSLE2 Modeling to determine storage Sediment Delivery from RUSLE2 0 00 tons /acre/yr Converting to R3/ac/yr NIA It /actyr Required Storage Volume= F N/A ft" See Option r OPTION 4C Using the Required Storage Volume from Option 4A or 4B to determine # of Wrapped TRSGA/Watt /es Required These devices can be used to satisfy the velocity requirements in Step 3 Storaoe from Wrapped Type A Rock Silt Checks or Wattles Option of using Wrapped Type A Rock Silt Enter Ditch Front Slope Gradient (H V) 2 1 Checks or Wattles Enter Ditch Back Slope Gradient (H V) 1 5 1 Enter Device Height 1 5 ft Area Behind Device 3 94 fe Length of Ditch Behind Device 150 00 It Storage Behind Device (assumes 651 effectency) i w 127 97a ft3 See Option 5 Wrapped TRSC- A/Wattles required X _yGo to Option 5 Total NIA ft COMMENTS Infiltration Basin Option 5 or 6 OPTION 6 Altematroe Designs IMPORTANT Before using Option 6 be sure that the information in Step 1 is accurate! There may be cases where the RUSLE2 Analysis (Option 4) yields an excessive number of devices to achieve storage requirements and site constraints disallow Infiltration and skimmer basin (option 5) installation Therefore it will be necessary to utilize the option below that best fits your situation The 60 Day Option is not available for projects Involving HOW or Trout Waters "The minimum basin size for a skimmer to function properly is 20 x10 If the basin dimensions are less than this size an infiltration basin must be utilized regardless of dewatenng time 30 DAY OPTION Under these circumstances It well be necessary to provide a minimum of 23 / of the storage calculated using the RUSLE2 analysis (Option 4) during the Clearing and Grubbing Phase This section must then be permanently stabilized within 30 days from the time clearing and grubbing begins This is derived from Table 2 1 of the Level III Reference Manual which indicates that for any given 30 day penod in NC the maximum amount of Rainfall Energy that can be expected is 23 / of the annual total In this situation 23 / of RUSLE2 Required Volume Design Depth (ft) Proposed Basin Side Slopes Infiltration Analysis _1403 ft 3 � 1 5 1 side slopes Web Soil Survey (http / /solldatamart nres usda govo Sat Hydraulic Con (Ksat micro Sod Permeability m /hr Dewaterin Time (Days) NIA Basin Design Minimum 2 1(L I9 Ratio Suggested To Width ft 2 Suggested Top Length (ft) Suggested Top Length (ft) 4 Final Design To Width ft Final Design To Width ft 5 Final Design To Len ft Final Design To Length ft 10 Final Design Depth ft Final Design Depth ft 3 Weir Width ft Weir Width ft 4 Skimmer Size (in) Skimmer Size (in) 15 Orifice Diameter in Orifice Diameter in 0 25 Dewaterng Time (Days) Dewatenn Time (Days) 1 Verify Storage (f) V rKy Storage (ft ) 5250 OK m /sec 0 0 Skimmer Ba in 0 00 Required PAM must be introduced by a minimum of 1 Wrapped Type A Rock Silt Check or Wattle upgrade from this outlet device Wattles are required for Trout or HOW waters 60 DAY OPTION Under these circumstances it will be necessary to provide a minimum of 43 / of the storage calculated using the RUSLE2 analysis (Option 4) during the Clearing and Grubbing Phase This section must then be permanently stabilized within 60 days from the time clearing and grubbing begins This is derived from Table 2 1 of the Level III Reference Manual which indicates that for any given 60 day period in NC the maximum amount of Rainfall Energy that can be expected is 43 / of the annual total In this situation 43 / of RUSLE2 Required Volume 26 23 ft Design Depth (ft) 3 Proposed Basin Side Slopes 1 5 1 side slopes Infiltration Analysis Web Soil Survey (http / /soildatamartnres usda govn Sat Hydraulic Con (Ksat micro Soil Permeability in /hr Dewatenng Time (Days) 10 Basin Design Minimum 2 1 (L 149 Ratio Suggested To Width ft 3 Suggested Top Length (ft) 6 Final Design To Width ft 9 Final Design To Len ft 18 Final Design Depth ft 3 Weir Width ft 4 Skimmer Size (in) is Orifice Diameter in 025 Dewaterng Time (Days) 4 Verify Storage (f) 20250 OK m /sec 11 2 Use infiltration or 1 56 Skimmer Bism PAM must be introduced by a minimum of 1 Wrapped Type A Rock Silt Check or Wattle upgrade from this outlet device GENERAL NOTES If the project involves HQW or Trout Waters wattles In conjunction with PAM (polyacrylamide) must be installed according STEP 1 Input Project Information items in red are REQUIRED Construction bme Storage from Wrapped Type A Rock Silt Checks or Wattles < 6 months (YIN)? Y Enter Ditch Front Slope Gradient (H V) HQW (YIN)? N Elevation Trout (YIN)? N Tool ft From Sto 34 + 50 to Sta 1 33 + 00 3 94 fig Right/Left Rt I No Elev Data Y / Ditch Grade 1 000 A Contnbuting 150 00 It RIW Width 30 feet Length of Run X 150 feet Disturbed Area = 010 acres (0 Rl-- SECTION 1 of 1 Drainage Area 03 acres Drainage Area must equal or exceed the Disturbed Area found above Surface Dewatering Device N Is this a Typical Section (YIN)? Y Will RUSLE2 be used to model the Non Typical sections? N Regression Constant C 659 Table 2 7 (Level I// Ref Manual) Rainfall Factor R 160 Figure 2 1 Erodibildy Factor K 024 Table 2 2 or Web Soil Survey (htipJ/soildatemart nres usda gow) Soil Type Pacolet Rion tnformational purposes only STEP 2 Ditch Liner requirements Utilize the Required Liner tab and note recommendations on plans STEP 3 Velocity Control Requirements Velocity control is not required TYPE B ROCK SILT CHECKS spaced at NIA feet The outlet device from Option 4 5 OR WATTLES or 6 will be sufficient See the HELP Tab for additional clarification and an example on how to place on plans Start with Option 4A OPTION 4 Using RUSLE2 Analysis to detennine required storage OPTION 4A For DRAINAGE AREA < 3 Acre Use V=CRKs to determine storage Regression Constant C 659 Rainfall Factor R 160 Erodibility Factor K 024 From Step 1 above Sod Type Pacolet Rion Ditchline Slope s 0 01000 ft/ft V= 20751 ft /ac/yr Required Storage Volume= 21 44 ft3 Using 82 of Rainfall Factor see note in cell C4 Move on to Option 4C OPTION 4B For DRAINAGE AREA < 3 Acre Use RUSLE2 Modeling to determine storage Sediment Delivery from RUSLE2 0 00 tons /acre /yr Converting to ft3/ac/yr NIA ft /ac/yr Required Storage Volume= NIA ft" See Option 4A OPTION 4C Using the Required Storage Volume from Option 4A or 4B to determine # of Wrapped TRSC- A/WatBes Required These devices can be used to satisfy the velocity requirements in Step 3 Storage from Wrapped Type A Rock Silt Checks or Wattles Option of using Wrapped Type A Rock Silt Enter Ditch Front Slope Gradient (H V) 2 1 I Checks or Wattles Enter Ditch Back Slope Gradient (H V) 15 1 Enter Device Height 15 It 3 94 fig GOOD Place measure(s) on EC Plan Start Area Behind Device +Kith the first d vice as close the outlet Length of Ditch Behind Device 150 00 It a Point as passible and then space them evenly Storage Behind Device (assumes 651 effeciency) 127 97 ft3 up the grade PAM should not be placed on Wrapped TRSC- A/WatUes required X 1 0 the last BMP at outlet Total 12797 ft COMMENTS Designer stilt has the option of using i 2 (18 ) wattles will be used for storage = ( 255 94 cu ft) A 12 x 24 x 3 TRSD B will be used at outlet PAM will be applied on the last wattle before the TRSD B 7 )ption 5 or 6 STEP 1 Input Project Information items in red are REQUIRED Construction time < 6 months (YIN)? Y HOW (YIN)? N Elevation Trout (Y /N)? N Tool ft From Ste 34 + 50 a a �t SECTION 1 of 1 is to Ste 1 37 + 00 3 k Levenui A IF L+YA — _ �! "- • A Right/Left Rt No Elev Data / Level III AIEx iratfon ' cn-L / Ditch Grade 1 000 / Reviewed B Contributing Date Reviewed RM Width 30 feet Level III A # Length of Run X 250 feet Level III A Expiration Disturbed Area = 017 acres Drainage Area 161 acres Drainage Area must equal or exceed the Disturbed Area found above Surface Dewatenng Device Y Surface Dewaterng Device mus be utilized Answer Y Is this a Typical Section (Y /N)? Y Will RUSLE2 be used to model the Non Typical sections? N Regression Constant, C 659 Table 2 7 (Level 111 Ref Manual) Rainfall Factor R 160 Figure 2 1 Erodibility Factor K 024 Table 2 2 or Web Soil Survey (httpAsoddatamartnres usda govl) Sod Type Pacolet Rion informational purposes only STEP 2 Ditch Liner requirements Utilize the Required Liner tab and note recommendations on plans STEP 3 Velocity Control Requirements Velocity contras is not required TYPE B ROCK SILT CHECKS spaced at N!A feet 711 outlet device from Option 4 5 OR WATTLES or 6 will be sufficient See the HELP Tab for additional clarification and an example on how to place on plans Start with Option 5 OPTION 4 Using RUSLE2 Analysis to determine required storage OPTION 4A For DRAINAGE AREA < 3 Acre Use V =CRKs to determine storage Regression Constant C 659 Rainfall Factor R 160 Erodibility Factor K 024 From Step 1 above Soil Type Pacolet Rion Ditchline Slope s 0 01000 ft/ft V= 20751 ft' /ac/yr Required Storage Volume= 35 73 ft3 See Option 5 OPTION 4B For DRAINAGE AREA < 3 Acre Use RUSLE2 Modeling to determine storage Sediment Delivery from RUSLE2 0 00 tons /acre /yr Converting to ft3 /ac/yr NIA ft /ac/yr Required Storage Volume= NIA ft3 See Option 5 I OPTION 4C Using the Required Storage Volume from Option 4A or 4B to determine # of Wrapped TRSC- A/Wattles Required These devices can be used to satisfy the velocity requirements in Step 3 Storage from Wrapped Type A Rock Silt Checks or Wattles Option of using Wrapped Type A Rock Silt Enter Ditch Front Slope Gradient (H V) 2 1 1 Checks or Wattles Enter Ditch Back Slope Gradient (H V) 15 1 Enter Device Height 1 5 ft Area Behind Device 3 94 fe Length of Ditch Behind Device 150 00 ft Storage Behind Device (assumes 65/ effeclency) r x 1 7 974fe Se Option 5 Wrapped TRSC- ANVatUes required X Go to Option 5 Total NIA it COMMENTS Designer stilt has the option of usinq USE 60 Day option USE Infiltration Basin Two wattles with PAM will be added before the last device 7ption 5 or 6 OPTION 6 Altematnee Designs IMPORTANT Before using Option 6 be sure that the Information in Step 1 is accurate! There may be cases where the RUSLE2 Analysis (Option 4) yields an excessive number of devices to achieve storage requirements and site constraints disallow infiltration and skimmer basin (option 5) installation Therefore it will be necessary to utilize the option below that best fits your situation The 60 Day Option is not available for projects involving HQW or Trout Waters —The minimum basin size for a skimmer to function properly is 20 x10 If the basin dimensions are less than this size an infiltration basin must be utilized regardless of dewatenng bme 30 DAY OPTION 1 Under these circumstances it will be necessary to provide a minimum of 23 / of the storage calculated using the RUSLE2 analysis (Option 4) during the Clearing and Grubbing Phase This section must then be permanently stabilized within 30 days from the time clearing and grubbing begins This is derived from Table 2 1 of the Level III Reference Manual which indicates that for any given 30 day period in NC the maximum amount of Rainfall Energy that can be expected is 23 / of the annual total In this situation 23 / of RUSLE2 Required Volume F-1002 ft' Design Depth (ft) 3 Proposed Basin Side Slopes 1 5 1 side slopes Infiltration Analvsis Web Soil Survey (http / /soildatamart nres usda govn Sat Hydraulic Con (Ksat micro Sod Permeability m /hr Dewatenng Time (Days) Basin Design Minimum 2 1 (L W) Ratio Suggested To Width ft 2 Suggested Top Length (ft) 4 Final Design To Width ft 5 Final Design To Length ft 10 Final Design Depth ft 3 Weir Width ft 4 Skimmer Size (in) 15 Orifice Diameter in 025 Dewatenng Time (Days) 1 Verity St rag (it I d 5250 OK misec NIA 0 0 Skimmer Sasin 000 Recl PAM must be introduced by a minimum of 1 Wrapped Type A Rock Silt Check or Wattle upgrade from this outlet device Wattles are required for Trout or HQW waters 60 DAY OPTION Under these circumstances it will be necessary to provide a minimum of 43 / of the storage calculated using the RUSLE2 analysis (Option 4) during the Clearing and Grubbing Phase This section must then be permanently stabilized within 60 days from the time clearing and grubbing begins This is derived from Table 2 1 of the Level III Reference Manual which indicates that for any given 60 day period in NC the maximum amount of Rainfall Energy that can be expected is 43 / of the annual total In this situation 43 / of RUSLE2 Required Volume F 18 74 ft Design Depth (ft) a Proposed Basin Side Slopes 1 5 1 side slopes Infiltration Anaivsis Web Soil Survey (http / /soildatamart nres usda govn Sat Hydraulic Con Ksat micro Sod Permeability (in/hr) Dewatering Time (Days) Basin Design Minimum 2 1(L W) Ratio Suggested To Width ft 2 Suggested Top Length (ft) 4 Final Design To Width ft 9 Final Design To Length (it) 18 Final Design Depth ft 3 Weir Width ft 4 Skimmer Size (in) is Orifice Diameter m 025 Dewatenng Time (Days) 4 Verify Storage (n') 20250 OK misec 11 2 Use infiltration or 1 56 Skimmer 8 ssi 10 PAM must be introduced by a minimum of 1 Wrapped Type A Rock Silt Check or Wattle upgrade from this outlet device GENERAL NOTES If the project involves HQW or Trout Waters wattles in conjunction with PAM (polyacrylamide) must be installed according 1 f► STEP 1 Input Project Information items in red are REQUIRED Construction time 659 < 6 months (Y /N)? Y HOW (Y /N)? N Elevation 024 Trout (Y /N)? N Tool ft From Sta 37 + 00 V= 20761 ft /ac/yr to Sta 40 + 00 Right/Left Rt I No Elev Data / / Ditch Grade 1 000 / Contributing Q /�f SECTION 1 of 1 ERD�DES -t Tgd Lutz EROs��n DESign r . ,• � 2t1.212tiAi1 Level III A # 659 • amino Level III A Expiration 199RIamm Reviewed By Date Reviewed 024 RIWWidth 30 feet Level III A# Length of Run X 300 feet Level 111 A Expiration Disturbed Area = 021 acres Drainage Area 2 04 acres Drainage Area must equal or exceed the Disturbed Area found above Surface Dewatenng Device Y r Surface Dewatering Device must be utilized Answer Y Is this a Typical Section (YIN)? Y Will RUSLE2 be used to model the Non Typical sections? N Regression Constant, C 659 Table 2 7 (Level 111 Ref Manual) Rainfall Factor R 160 Figure 2 1 Erodibility Factor K 024 Table 2 2 or Web Soil Survey (http Asoddatamart nres usda govl) Sod Type Pacolet Rion informational purposes only STEP 2 Ditch Liner requirements Utilize the Required Liner tab and note recommendations on plans STEP 3 Velocity Control Requirements Velocity control is not required TYPE B ROCK SILT CHECKS 0 spaced at N!A feet Th outlet d vice from Option 4 5 OR WATTLES of 6 will be sufficient See the HELP Tab for additional clarification and an example on how to place on plans Start with Option 5 OPTION 4 Using RUSLE2 Analysis to determine required storage OPTION 4A For DRAINAGE AREA < 3 Acre Use V =CRKs to determine storage Regression Constant C 659 Rainfall Factor R 160 Erodibility Factor K 024 From Step 1 above Sod Type Pacolet Rion Ditchline Slope s 0 01000 ft/ft V= 20761 ft /ac/yr Required Storage Volume= 42 87 ft3 See Option 5 OPTION 4B For DRAINAGE AREA < 3 Acre Use RUSLE2 Modeling to determine storage Sediment Delivery from RUSLE2 0 00 tons/acre /yr Converting to 113/ar/yr N/A W /ac/yr Required Storage Volume= N1A ft3 See Option 5 OPTION 4C Using the Required Storage Volume from Option 4A or 4B to determine # of Wrapped TRSGA/Watdes Required These devices can be used to satisfy the velocity requirements in Step 3 Storage from Wrapped Type A Rock Silt Checks or Wattles Option of using Wrapped Type A Rock Silt Enter Ditch Front Slope Gradient (H to 2 1 Checks or Wattles Enter Ditch Back Slope Gradient (H V) 15 1 Enter Device Height 1 5 It Area Behind Device 3 94 ft Length of Ditch Behind Device 150 00 It Storage Behind Device (assumes 651 effeciency) 127 97 ft' See Option 5 Wrapped TRSGA/Watt /es required X Go to Option 5 Total NIA ft COMMENTS Desiqner still has the option of using Option 5 or f 60 Day Option Infiltration Basin wattles with PAM will be added before the last device OPTION 6 Altematrve Designs IMPORTANT Before using Option 6 be sure that the information In Step 1 is accurate! There may be cases where the RUSLE2 Analysis (Option 4) yields an excessive number of devices to achieve storage requirements and site constraints disallow infiltration and skimmer basin (option 5) installation Therefore it will be necessary to utilize the option below that best fits your situation The 60 Day Option Is not available for projects involving HOW or Trout Waters —The minimum basin size for a skimmer to function properly is 20 x10 If the basin dimensions are less than this size an Infiltration basin must be utilized regardless of dewatenng time 30 DAY OPTION Under these circumstances it will be necessary to provide a minimum of 23 / of the storage calculated using the RUSLE2 analysis (Option 4) during the Clearing and Grubbing Phase This section must then be permanently stabilized within 30 days from the time clearing and grubbing begins This is derived from Table 2 1 of the Level III Reference Manual which indicates that for any given 30 day period in NC the maximum amount of Rainfall Energy that can be expected is 23 / of the annual total In this situation 23 / of RUSLE2 Required Volume F-1203 ft' Design Depth (ft) 3 Proposed Basin Side Slopes 1 5 1 side slopes Infiltration Analysis Web Soil Survey (h / /soildatamart nres usda govn m /sec 0 0 Skimmer Basin 0 00 Req aired N/A Sat Hydraulic Con (Ksat micro Sod Permeability in /hr Dewaterm Time (Days) Basin Design Minimum 2 1 (L iM Ratio Suggested To Width ft 2 Suggested Top Length (ft) 4 Final Design To Width ft 5 Final Design To Length ft 10 Final Design Depth ft 3 Weir Width ft 4 Skimmer Size (in) is Orifice Diameter m 025 Dewatenng Time (Days) 1 Verify Storag (fe) 5250 OK PAM must be introduced by a minimum of 1 Wrapped Type A Rock Silt Check or Wattle upgrade from this outlet device Wattles are required for Trout or HOW waters 60 DAY OPTION Under these circumstances it will be necessary to provide a minimum of 43 / of the storage calculated using the RUSLE2 analysis (Option 4) during the Clearing and Grubbing Phase This section must then be permanently stabilized within 60 days from the time clearing and grubbing begins This is derived from Table 2 1 of the Level III Reference Manual which indicates that for any given 60 day period in NC the maximum amount of Rainfall Energy that can be expected is 43 / of the annual total In this situation 43/ of RUSLE2 Required Volume 22 48 ft3 Design Depth (ft) 3 - Proposed Basin Side Slopes 1 5 1 side slopes Infiltration Analvsis Web Soil Survey (http / /soildatamart nres usda govn Sat Hydraulic Con (Ksat micro Sod Permeability in /hr Dewatering Time (Days) Basin Design Minimum 2 1 (L WJ Ratio Suggested To Width ft 2 Suggested Top Length (ft) 4 Final Design To Width ft 9 Final Design To Length ft 18 Final Design Depth ft 3 Weir Width ft 4 Skimmer Size (in) 15 Orifice Diameter in 025 Dewatenng Time (Days) 4 V nfy St rag iR,) 2 O 50 OK misec 11 2 Use Infiltration or 1 56 Skimmer Basin 10 PAM must be introduced by a minimum of 1 Wrapped Type A Rock Silt Check or Wattle upgrade from this outlet device GENERAL NOTES If the project involves HOW or Trout Waters wattles in conjunction with PAM (polyacrylamide) must be installed according 37fa® — 4/0 too Printed Jan 24, 2012 STEP 1 Input Project Information items in red are REQUIRED Construction bme < 6 months (YIN)? Y HQW (YIN)? N Elevation Trout (Y /N)? N Tool ft From Sta 1 40 + 00 /y Rt SECTION 1 of 1 to Sta 1 41 + 50 Storage from Wramoed Type A Rock Silt Checks or Wattles Level III A# ?AN Enter Ditch Front Slope Gradient (H V) 2 1 Right/Left Rt No Elev Data / Level 111 A Ex iration t m _ e / Ditch Grade 1 000 A Reviewed B 3 94 if GOOD Place measure( ) on EC Plan Start 1 Contributing Date Reviewed Device Length of Ditch Behind De 150 00 ft Point as possible and theq space them evenly RIW Width 30 feet Level 111 A # a up the grade PAM should not placed on Wrapped TRSC- AlWattles required X 10 Length of Run X 150 feet Level III A Expiration COMMENTS Disturbed Area = 010 acres Designer still has the option of using Option 5 or 6 Drainage Area 042 acres Drainage Area must equal or exceed the Disturbed Area found above Surface Dewatenng Device N Is this a Typical Section (YIN)? Y Will RUSLE2 be used to model the Non Typical sections? N Regression Constant, C 659 Table 2 7 (Level ill Ref Manual) Rainfall Factor R 160 Figure 2 1 Erodibility Factor K 024 Table 2 2 or Web Sod Survey (http /lsoildatamart nres usda govl) Sod Type Pacolet Rion informational purposes only STEP 2 Ditch Liner requirements Utilize the Required Liner tab and note recommendations on plans STEP 3 Velocity Control Requirements Velocity control is not required TYPE B ROCK SILT CHECKS spaced at N/A feet The outlet device from Option 4 5 OR WATTLES or 6 will be sufficient See the HELP Tab for additional clarification and an example on how to place on plans Start With Option 4A OPTION 4 Using RUSLE2 Analysts to detennine required storage OPTION 4A For DRAINAGE AREA < 3 Acre Use V =CRKs to determine storage Regression Constant C 659 Rainfall Factor R 160 Erodibility, Factor K 024 From Step 1 above Soil Type Pacolet Rion Ditchlme Slope s 0 01000 Wit V= 20751 ft /ac/yr Required Storage Volume= 21 44 ft3 ring 82 of Rainfall Factor see no a in cell I C4 Move on to Option 4C OPTION 4B For DRAINAGE AREA < 3 Acre Use RUSLE2 Modeling to determine storage Sediment Delivery from RUSLE2 0 00 tons/acre /yr Converting to ft3/aclyr N/A ft' /ac/yr Required Storage Volume= F N/A ft3 See Option 4A OPTION 4C Using the Required Storage Volume from Option 4A or 4B to determine # of Wrapped TRSC- AANattles Required These devices can be used to satisfy the velocity requirements in Step 3 Storage from Wramoed Type A Rock Silt Checks or Wattles Option of using Wrapped Type A Rock Silt Enter Ditch Front Slope Gradient (H V) 2 1 Checks or Wattles Enter Ditch Back Slope Gradient (H V) 15 1 Enter Device Height 1 5 ft 3 94 if GOOD Place measure( ) on EC Plan Start Area Behind Devoe vdth the first d vice as close to the outlet Device Length of Ditch Behind De 150 00 ft Point as possible and theq space them evenly Storage Behind Device (assumes 651 effeciency) 127 97 ft' a up the grade PAM should not placed on Wrapped TRSC- AlWattles required X 10 the last BMP at outle Total 12797 It COMMENTS Designer still has the option of using Option 5 or 6 2 (18 ) wattles will be used for storage = (170 cu It ) and a 6x1 2x3 TRSD B = ( 60 cu ft) will also be used Total storage = ( 230 cu It ) PAM will be applied on the last wattle before the TRSD B STEP 1 Input Project Information items in red are REQUIRED Construction time < 6 months (Y /N)? Y HQW (YIN)? N Elevation Trout (Y /N)? N Tool ft From Sta 41 + 50 O Rt SECTION 1 of 1 to Sta 1 42 + 25 Level ni AX Irm RighULeft Rt No Elev Data / Level III A Ex iration / Ditch Grade 1 000 / Reviewed B Contributing Date Reviewed RM Width 30 feet Level III A # Length of Run X 75 feet Level 111 A Expiration Disturbed Area = 005 acres Drainage Area 018 acres Drainage Area must equal or exceed the Disturbed Area found above Surface Dewatenng Device N Is this a Typical Section (YIN)? Y Will RUSLE2 be used to model the Non Typical sections? N Regression Constant, C 659 Table 2 7 (Level 111 Ref Manual) Rainfall Factor R 160 Figure 2 1 Erodibility Factor K 024 Table 2 2 or Web Sod Survey (http Asoddatamart nres usda govt Soil Type Pacoiet Rion informational purposes only STEP 2 Ditch Liner requirements Utilize the Required Liner tab and note recommendations on plans STEP 3 Velocity Control Requirements Vplocrty control is not required TYPE B ROCK SILT CHECKS 00 spaced at NIA feet Th- outlet device from Option 4 5 OR WATTLES or 6 will be sufficient See the HELP Tab for additional clarification and an example on how to place on plans Start With Option 4A OPTION 4 Using RUSLE2 Analysis to determine required storage OPTION 4A For DRAINAGE AREA < 3 Acre Use V =CRKs to determine storage Regression Constant C 659 Rainfall Factor R 160 Erodibility Factor K 024 From Step 1 above Soil Type Paeolet Rion Ditchline Slope s 0 01000 ft/ft V= 20751 ft /actyr Required Storage Volume= r 1072 ft3 Using 82 / of Rainfall Factor see note in cell C4 Move on to Option 4C OPTION 4B For DRAINAGE AREA < 3 Acre Use RUSLE2 Modeling to determine storage Sediment Delivery from RUSLE2 0 00 tons /acre /yr Converting to ft3 /ac/yr NIA ft /ac/yr Required Storage Volume= NIA ft3 See Option 4A OPTION 4C Using the Required Storage Volume from Option 4A or 4B to determine # of Wrapped TRSGAANattles Required These devices can be used to satisfy the velocity requirements in Step 3 Storage from Wrapped Type A Rock Silt Checks or Wattles Option of using Wrapped Type A Rock Silt Enter Ditch Front Slope Gradient (H to 2 1 Checks or Wattles Enter Ditch Back Slope Gradient (H V) 15 1 Enter Device Height 1 5 ft Behind Device 3 94 if Pia a measu e(s) on EC Plan Start Area Be with the first device as close to the outlet Length hinDitch Behind Device 15000 ft Storage Behind Device (assumes 65•/ effeciency) 63 98 ft3 Point le and then space them evenly Wrapped TRSC- A/Wattles required X 10 up the e grate a,ie PAM should not be placed an Total 6398 ft the last BMP at outlet COMMENTS Designer still has the option of us ng Option 5 or 6 2 (18 ) wattles will be used for storage = ( 256 cu ft ) and a 6xl2x3 TRSD B = ( 60 cu ft ) will also be used Total storage = ( 316 cu ft) PAM will be applied on the last wattle before the TRSD B STEP 1 Input Project Information Items in red are REQUIRED SECTION 1 of 1 Construction time Storage from Wrapped Type A Rock Silt Checks or Wattles County Option of using Wrapped 1 ype A Rock Silt Enter Ditch Front Slope Gradient (H V) < 6 months (Y /N)? Y Chocks or Wattles Alexander 1 5 1 HOW (YIN)? N Elevation Location Area Behind Devi Trout (Y /N)? N Tool ft GOOD Place measure(s) on EC Plan Start Pre ared B G�ST117. tL From Sta 45 -75 Date Prepared 99LiOHJ1'li to Sta 1 42 + 25 up the a grade PAM should not be placed an Level III A #fl 1 0 RIghULeft Rt No Elev Data / Level III A Expiration / Ditch Grade 1 000 / Reviewed B Designer still has the option of using Option 5 or 6 Contributing Date Reviewed RIW Width 30 feet Level 111 A# Length of Run X 350 feet Level 111 A Expiration Disturbed Area = 0 24 acres Drainage Area 0 47 acres Drainage Area must equal or exceed the Disturbed Area found above Surface Dewatenng Device N Is this a Typical Section (YIN)? Y Will RUSLE2 be used to model the Non Typical sections? N /G iPf Regression Constant, C 659 Table 2 7 (Level/// Ref Manual) Rainfall Factor R 160 Figure 2 1 Erodibllity Factor K 024 Table 2 2 or Web Soil Survey (http Asoildatamart nits usda gov/J Soil Type Pacolet Rion informational purposes only STEP 2 Ditch Liner requirements Utilize the Required Liner tab and note recommendations on plans STEP 3 Velocity Control Requirements TYPE BROCK SILT CHECKS 0 spaced at 175 feet Choose between Type B Rock Silt OR WATTLES I Checks or Wattles See the HELP Tab for additional clarification and an example on how to place on plans Start with Option 4A OPTION 4 Using RUSLE2 Analysts to determine required storage OPTION 4A For DRAINAGE AREA < 3 Acre Use V=CRKs to determine storage Regression Constant C 659 Rainfall Factor R 160 Erodibility Factor K 024 From Step 1 above Soil Type Pacolet Rion Ditchline Slope s 0 01000 Wit V= 20751 ft /ac/yr Required Storage Volume= F 5002 ft3 Using 82 / of Rainfall Factor see note in cell C4 Move on to Option 4C OPTION 4B For DRAINAGE AREA < 3 Acre Use RUSLE2 Modeling to determine storage Sediment Delivery from RUSLE2 0 00 tons /acre/yr Converting to ft3 /aclyr N/A ft /aclyr Required Storage Volume= NIA ft? See Option 4A OPTION 4C Using the Required Storage Volume from Option 4A or 4B to determine # of Wrapped TRSC A/Waftles Required These devices can be used to satisfy the velocity requirements in Step 3 Storage from Wrapped Type A Rock Silt Checks or Wattles Option of using Wrapped 1 ype A Rock Silt Enter Ditch Front Slope Gradient (H V) 2 1 Chocks or Wattles Enter Ditch Back Slope Gradient (H V) 1 5 1 Enter Device Height 1 5 ft Area Behind Devi 3 94 ft2 GOOD Place measure(s) on EC Plan Start Behind Length of d Behind Device 150 00 ft with the first device as close to the outlet point possible and then space them evenly Storage Behind Device (assumes 651 effeclency) 127 97 ft' up the a grade PAM should not be placed an Wrapped TRSC- A/Wattles required X 1 0 Total 12797 ft the last BMP at outlet COMMENTS Designer still has the option of using Option 5 or 6 2 (18 ) wattles will be used for storage = ( 214 cu ft) and a 6x12x3 TRSD B = (60 cu ft) will also be used Total storage = ( 374cu ft) PAM will be applied on the last wattle before the TRSD B STEP 1 Input Project Information items in red are REQUIRED Construction time < 6 months (YIN)? Y HOW (YIN)? N Elevation Trout (Y /N)? N Tool ft From Sta 50 + 00 SECTION 1 of 1 to Ste 1 45 + 75 659 Rainfall Factor R Level III A# Right/Left Rt No Elev Data / Level III A Expiration / Ditch Grade 2000 A Reviewed B V= 41501 ft /ac/yr Contributing Date Reviewed R/W Width 30 feet Level 111 A # Length of Run X 425 feet Level III A Expiration Disturbed Area = 029 acres Drainage Area 14 acres Drainage Area must equal or exceed the Disturbed Area found above Surface Dewatenng Device Y r Surface Dewaterng Device must be utilized Answer Y Is this a Typical Section (YIN)? Y Will RUSLE2 be used to model the Non Typical sections? N Regression Constant C 659 Table 2 7 (Level /I/ Ref Manual) Rainfall Factor R 160 Figure 2 1 Erodibildy Factor K 024 Table 2 2 or Web Soil Survey (httpAsoildatamart nres usda gow) Soil Type Pacolet Rion informational purposes only STEP 2 Ditch Liner requirements Utilize the Required Liner tab and note recommendations on plans STEP 3 Velocity Control Requirements TYPE BROCK SILT CHECKS spaced at 142 feet Choose between Type l Rock Silt Checks or Wa #des OR WATTLES See the HELP Tab for additional clarification and an example on how to place on plans Start with Caption 5 OPTION 4 Using RUSLE2 Analysis to determine required storage OPTION 4A For DRAINAGE AREA < 3 Acre Use V =CRKs to determine storage Regression Constant C 659 Rainfall Factor R 160 Erodibdity Factor K 024 Frorn Step 1 above Sod Type Pacolet Rion Ditchline Slope s 0 02000 Rift V= 41501 ft /ac/yr Required Storage Volume= 121 47 ft3 See Option 5 OPTION 4B For DRAINAGE AREA < 3 Acre Use RUSLE2 Modeling to determine storage Sediment Delivery from RUSLE2 0 00 tons /acre /yr Converting to ft3 /ac/yr N/A ft /ac/yr Required Storage Volume= NA ft3 See Option 5 OPTION 4C Using the Required Storage Volume from Option 4A or 4B to determine # of Wrapped TRSGA/Wattles Required These devices can be used to satisfy the velocity requirements in Step 3 Storage from Wrapped Type A Rock Silt Checks or Wattles Option of using Wrapped Type A Rock Sdi Enter Ditch Front Slope Gradient (H V) ? 1 Checks or Wattics Enter Ditch Back Slope Gradient (H V) 1 5 1 Enter Device Height 1 5 ft Area Behind Device 3 94 fe Length of Ditch Behind Device 75 00 ft 3 See Option 5 Storage Behind Device (assumes 651 effeciency) 63 98 ft Wrapped TRSGA/Wattles required X Go to Option 5 Total NIA ft (MMMFNTA Desioner still has the oot on of usino Option 5 or 6 USE 60 Day Option USE Infiitrabon Basin PAM will be added to the wattles OPTION 6 Altematnre Designs IMPORTANT Before using Option 6 be sure that the information in Step 1 Is accuratel There may be cases where the RUSLE2 Analysis (Option 4) yields an excessive number of devices to achieve storage requirements and site constraints disallow infiltration and skimmer basin (option 5) installation Therefore it will be necessary to utilize the option below that best fits your situation The 60 Day Option Is not available for projects involving HOW or Trout Waters "The minimum basin size for a skimmer to function properly is 20 x10 If the basin dimensions are less than this size an infiltration basin must be utilized regardless of dewatenng time 30 DAY OPTION 7 Under these circumstances it will be necessary to provide a minimum of 23 / of the storage calculated using the RUSLE2 analysis (Option 4) during the Clearing and Grubbing Phase This section must then be permanently stabilized within 30 days from the time clearing and grubbing begins This is derived from Table 2 1 of the Level III Reference Manual which indicates that for any given 30 day period in NC the maximum amount of Rainfall Energy that can be expected is 23 / of the annual total In this situation 23 / of RUSLE2 Required Volume F-3-407 ft' Design Depth (ft) s Proposed Basin Side Slopes 1 5 1 side slopes Infiltration Anaivsis Web Sod Survey (http Hsoildatamart nres usda govn Sat Hydraulic Con (Ksat micro Soil Permeabd in /hr Dewatering Time (Days) NIA Basin Design Minimum 2 1 (L Ratio Suggested To Width ft 3 4 Suggested Top Length (ft) 6 8 Final Design To Width ft 5 9 Final Design To Len ft 10 18 Final Design Depth ft 3 3 Weir Width ft 4 4 Skimmer Size (in) Is 16 Orifice Diameter in 025 025 n Dewateng Time (Days) 1 4 V city St rag (e°) 5250 OK 2 O 50 OK m /sec 0 0 Skimmer Basm 0 00 Required PAM must be introduced by a minimum of 1 Wrapped Type A Rock Silt Check or Wattle upgrade from this outlet device Wattles are required for Trout or HQW waters 60 DAY OPTION Under these circumstances it will be necessary to provide a minimum of 43 / of the storage calculated using the RUSLE2 analysis (Option 4) during the Clearing and Grubbing Phase This section must then be permanently stabilized within 60 days from the time clearing and grubbing begins This is derived from Table 2 1 of the Level 111 Reference Manual which indicates that for any given 60 day period in NC the maximum amount of Rainfall Energy that can be expected is 43 / of the annual total In this situation 43 / of RUSLE2 Required Volume F-6-370 ft3 Design Depth (ft) 3 Proposed Basin Side Slopes 1 5 1 side slopes Infiltration Analysis Web Sod Survey (http / /soildatamart nres usda govt m /sec 11 2 Use Infiltration or 1 56 Skimmer Basm 10 Sat Hydraulic Con (Ksat micro Soil Permeability m /hr Dewatering Time (Days) Basin Design Minimum 2 1(L 149 Ratio Suggested To Width ft 4 Suggested Top Length (ft) 8 Final Design To Width ft 9 Final Design To Length ft 18 Final Design Depth ft 3 Weir Width ft 4 Skimmer Size (in) 16 Orifice Diameter in 025 Dewatenng Time (Days) 4 IV rity Storage (fe) 2 O 50 OK PAM must be introduced by a minimum of 1 Wrapped Type A Rock Silt Check or Wattle upgrade from this outlet device GENERAL NOTES If the project involves HQW or Trout Waters wattles in conjunction with PAM (polyacrylamide) must be installed according N � �- Sotoo Printed Jan 24 2012 STEP 1 Input Project Information items in red are REQUIRED SECTION 1 of 1 Construction time Storage from Wrapped Type A Rock Silt Checks or Wattles County Alexander 1W Enter Ditch Front Slope Gradient (H V) < 6 months (YIN)? Y 1 Checks or Wattles Enter Ditch Back Slope Gradient (H V) 15 1 HQW (YIN)? N Elevation Location Trout (YIN)? N Tool ft Place measure(s) an EC Plan Start Prepared By ; itmEmE 3 From Sta 50 + 00 Length of Ditch Behind Device 7500 ft Date Prepared t41 to Sta 1 51 + 50 up the a grade PAf1 should not be placed an Level III A # Epa Right/Left Rt No Elev Data / Level III A Ex irahon� A Ditch Grade 2000 / Reviewed B Contributing Date Reviewed RNY Width 30 feet Level III A# Length of Run X 150 feet Level III A Expiration Disturbed Area = 010 acres Drainage Area 062 acres Drainage Area must equal or exceed the Disturbed Area found above Surface Dewatering Device N Is this a Typical Section (YIN)? Y Will RUSLE2 be used to model the Non Typical sections? N Regression Constant, C 659 Table 2 7 (Level 111 Ref Manual) Rainfall Factor R 160 Figure 2 1 Erodibility Factor K 024 Table 2 2 or Web Soil Survey (http //soildatamart nres usda gow) Soil Type Pacolet Rion informational purposes only STEP 2 Ditch Liner requirements Utilize the Required Liner tab and note recommendations on plans STEP 3 Velocity Control Requirements Velocity control is not required TYPE B ROCK SILT CHECKS spaced at N/A feet The outlet device from Option 4 5 OR WATTLES or 6 will be sufficient See the HELP Tab for additional clarification and an example on how to place on plans Start With Option 4A OPTION 4 Using RUSLE2 Analysis to detennme required storage OPTION 4A For DRAINAGE AREA < 3 Acre Use V=CRKs to determine storage Regression Constant C 659 Rainfall Factor R 160 Erodibility Factor K 024 From Step 1 above Soil Type Pacolet Rion Ddchline Slope s 0 02000 ft/ft V= 41501 ft /aGyr Required Storage Volume= 42 87 ft3 Using 82 / of Rainfall Factor see note in cell C4 hove on to Option 4C OPTION 4B For DRAINAGE AREA < 3 Acre Use RUSLE2 Modeling to determine storage Sediment Delivery from RUSLE2 0 00 tons /acretyr Converting to ft3 /acJyr NIA ft /aGyr Required Storage Volume= NIA ft3 See Option 4A OPTION 4C Using the Required Storage Volume from Option 4A or46 to determine # of Wrapped TRSGA/Wattles Required These devices can be used to satisfy the velocity requirements in Step 3 Storage from Wrapped Type A Rock Silt Checks or Wattles Option of using Wrapped Type A Rock Silt Enter Ditch Front Slope Gradient (H V) 2 1 1 Checks or Wattles Enter Ditch Back Slope Gradient (H V) 15 1 Enter Device Height 1 5 it 3 94 ft GOOD Place measure(s) an EC Plan Start Area Behind Device with the first device as close to the outlet Length of Ditch Behind Device 7500 ft s point possible and then space them evenly Storage Behind Device (assumes 651 effeciency) 63 98 ft3 up the a grade PAf1 should not be placed an Wrapped TRSC- A/Wattles required X 10 the Iasi BMP at outlet Total 6398 ft COMMENTS Designer still has the option of using 1 (18 ) wattles will be used for storage = (64 cu ft) and a 6x12x3 TRSD B = ( 81 cu ft) will also be used Total storage = ( 145cu it) PAM will be applied on the last wattle before the TRSD B 7ption 5 or 6 STEP 1 Input Project Information items in red are REQUIRED Construction time < 6 months (YIN)? Y HQW (YIN)? N Elevation Trout (YIN)? N Tool ft From Sta 51 + 50 to Sta 1 54 + 00 Q fit SECTION 1 of 1 Right/Left Rt No Elev Data / Level III A Expiration WM Irurius III A Ditch Grade 1 000 A Reviewed B Contributing Date Reviewed RNII Width 30 feet Level III A #- Length of Run X 250 feet Level III A Expiration Disturbed Area = 017 acres Drainage Area 23 acres Drainage Area must equal or exceed the Disturbed Area found above Surface Dewatenng Device Y r Surface Dewatenng Device must be utilized Answer Y Is this a Typical Section (Y /N)? Y Will RUSLE2 be used to model the Non Typical sections? N Regression Constant, C 659 Table 2 7 (Level N Ref Manual) Rainfall Factor R 160 Figure 2 1 Erodibility Factor K 024 Table 2 2 or Web Soil Survey (http Asoddatamart nres usda gow) Soil Type Pacolet Rion informational purposes only STEP 2 Ditch Liner requirements Utilize the Required Liner tab and note recommendations on plans STEP 3 Velocdy Control Requirements Velocity control is not required TYPES ROCK SILT CHECKS t spaeedat NIA feet The outlet device from Option 4 5 OR WATTLES or 6 will be Sufcient See the HELP Tab for additional clarification and an example on how to place on plans Mart with Option 5 OPTION 4 Using RUSLE2 Analysis to determine required storage OPTION 4A For DRAINAGE AREA < 3 Acre Use V=CRKs to determine storage Regression Constant C 659 Rainfall Factor R 160 Erodibildy Factor K 024 From Step t above Sod Type Pacolet Rion Ditchline Slope s 0 01000 Rift V= 20761 ft /ac/yr Required Storage Volume= 35 73 ft3 Sae Option 5 OPTION 4S For DRAINAGE AREA < 3 Acre Use RUSLE2 Modeling to determine storage Sediment Delivery from RUSLE2 0 00 tons/acre/yr Converting to ft3 /aclyr N/A ft /ac/yr Required Storage Volume= F N/A ft3 See Option 5 OPTION 4C Using the Required Storage Volume from Option 4A or 46 to determine # of Wrapped TRSC- ANYattles Required These devices can be used to satisfy the velocity requirements in Step 3 Storage from Wrapped Type A Rock Silt Checks or Wattles Option of using Wrapp d Type A Rock Silt Enter Ditch Front Slope Gradient (H %0 2 1 Checks or Wattles Enter Ditch Back Slope Gradient (H 10 15 1 Enter Device Height 1 5 ft Area Behind Device 3 94 ftz Length of Ditch Behind Device 150 00 ft3 See Option 5 Storage Behind Device (assumes 651 effeciency) 127 97 ft Wrapped TRSC- A/WaWes required X Go to Option 5 Total N/A ft, COMMENTS Infiltration Basin will be applied on the last wattle before the TRSD B 5or6 OP77ON 6 Aitemabve Designs IMPORTANT Before using Option 6 be sure that the information In Step 1 is accurate! There may be cases where the RUSLE2 Analysis (Option 4) yields an excessive number of devices to achieve storage requirements and site constraints disallow infiltration and skimmer basin (option 5) installation Therefore it will be necessary to utilize the option below that best fits your situation The 60 Day Option Is not available for projects involving HOW or Trout Waters "The minimum basin size for a skimmer to function properly is 20 x10 If the basin dimensions are less than this size an infiltration basin must be utilized regardless of dewatering time 30 DAY OPTION Under these circumstances it will be necessary to provide a minimum of 23 / of the storage calculated using the RUSLE2 analysis (Option 4) during the Clearing and Grubbing Phase This section must then be permanently stabilized within 30 days from the time clearing and grubbing begins This is derived from Table 2 1 of the Level ill Reference Manual which indicates that for any given 30 day period in NC the maximum amount of Rainfall Energy that can be expected is 23 / of the annual total In this situation 23/ of RUSLE2 Required Volume Design Depth (ft) Proposed Basin Side Slopes Infiltration Analvsis 10 02 ft3 3 � 1 5 1 side slopes Web Soil Survey (http / /soildatamart.nres usda gov/) Sat Hydraulic Con (Ksat micro Sod Permeability m /hr Dewaterm Time (Days) Basin Design Minimum 2 1(L W) Ratio Suggested To Width ft 2 Suggested Top Length (it) 4 Final Design To Width ft 5 Final Design To Length ft 10 Final Design De ft 3 Weir Width ft 4 Skimmer Size (in) 15 Orifice Diameter in 025 Dewaterin Time (Days) 1 Verify Storage (ft') 5250 OK m /sec 0 0 Skimmer Basin 0 00 Required N/A PAM must be introduced by a minimum of 1 Wrapped Type A Rock Silt Check or Wattle upgrade from this outlet device Wattles are required for Trout or HQW waters 60 DAY OPTION Under these circumstances it will be necessary to provide a minimum of 43 / of the storage calculated using the RUSLE2 analysis (Option 4) during the Clearing and Grubbing Phase This section must then be permanently stabilized within 60 days from the time clearing and grubbing begins This is derived from Table 2 1 of the Level III Reference Manual which indicates that for any given 60 day period in NC the maximum amount of Rainfall Energy that can be expected is 43 / of the annual total In this situation 43 / of RUSLE2 Required Volume 18 74 ft' Design Depth (ft) 3 Proposed Basin Side Slopes 1 5 1 side slopes Infiltration Analvsis Web Soil Survey (http / /soildatamart nres usda govn m /sec 11 2 Use Infiltration or 1 56 Skimmer B3sm 10 Sat Hydraulic Con Ksat micro Soil Permeability m1hr Dewatering Time (Days) Basin Design Minimum 2 1(L K9 Ratio Suggested To Width ft 2 Suggested Top Length (ft) 4 Final Design To Width ft 9 Final Design To Length ft 18 Final Design Depth ft 3 Weir Width ft 4 Skimmer Size (in) Is Orifice Diameter in 025 Dewatering Time (Days) 4 Verify Storage (ft') 20250 OK PAM must be introduced by a minimum of 1 Wrapped Type A Rock Silt Check or Wattle upgrade from this outlet device GENERAL NOTES If the project involves HQW or Trout Waters wattles in conjunction with PAM (polyacrylamide) must be installed according ,� •' 7, =y �_�; ✓�, J r'z 'u- iii 4- � � a� �., �!►. C'1_Y 7Y � 1 �V]"� {��'t iI p� „ ��tJ �i4 � '+. A iLd _ C', .C. + +' -,,� - : �� t F'�+� � �.,.i �kll'��' -"'f {' t r ��•tCJ �1 r� { ,« i'rrT ,� `»'".} 3r t c o MIMY ,, yj� t ••.,.+ l w• r"s` � a�i � ,�� t.1„c '' '/ j • f �.5t�j'•6'.� ' � "-�, •� a s n J sr + '� a � 4k �•' 1 � � 4. .• �� ��� t �` 4: ,•*'�'� -{. , � r, t- tom_ +� #��, •. i �.� �� 4i � .« N l �k 1 � �'�`n � �i .,� "i � ..tea �, � *fir _'� t' • a •) � ` fh � err,,- � G. � �l ��� � �� • w•. 1 - t �- �}''•* �r +, r r` � 4jK'S. � � 'lH r.�•y3'�: '!' 'If'a' �f {... s -ram- STEP 1 Input Project Information items in red are REQUIRED SECTION 1 of 1 Construction time County Alexander 5 6 months (YIN)? Y HC1W (YIN)? N Elevation Location Trout (YIN)? N Tool ft Prep aged B G�A[t4 From Sta 54 -00 Date Prepared i9 to Sta 1 56 + 50 Level III A # RightlLeft Rt No Elev Data / Level III A Ex crab n °/ Ditch Grade 1 000 A Reviewed B Contributing Date Reviewed RNII Width 30 feet Level III A# Length of Run X 250 feet Level III A Expiration Disturbed Area = 017 acres Drainage Area 222 acres Drainage Area must equal or exceed the Disturbed Area found above Surface Dewatenng Device Y Surface Dewatering Device must be utilized Answer Y Is this a Typical Section (YIN)? Y Nil RUSLE2 be used to model the Non Typical sections? N 0 1?,.L Regression Constant, C 659 Table 2 7 (Level /I/ Ref Manual) Rainfall Factor R 160 Figure 2 1 Erodibildy Factor K 024 Table 2 2 or Web Sod Survey (htipAlsoddatamart nres usda gow) Soil Type Pacolet Rion informational purposes only STEP 2 Ditch Liner requirements Utilize the Required Liner tab and note recommendations on plans STEP 3 Velocity Control Requirements Velocity control is not required TYPE B ROCK SILT CHECKS spacedat N/A feet The outlet device from Option 4 5 OR WATTLES or 6 will be sufficient See the HELP Tab for additional clarification and an example on how to place on plans Start with Option 5 OPTION 4 Using RUSLE2 Analysis to determine required storage OPTION 4A For DRAINAGE AREA < 3 Acre Use V =CRKs to determine storage Regression Constant C 659 Rainfall Factor R 160 Erodibility, Factor K 024 From Step 1 above Sod Type Pacolet Rion Ditchline Slope s 0 01000 11/11 V= 20761 It /ac/yr Required Storage Volume= F 3573 113 See Option 5 OPTION 4B For DRAINAGE AREA < 3 Acre Use RUSLE2 Modeling to determine storage Sediment Delivery from RUSLE2 0 00 tons /acre/yr Converting to ft3/aclyr N/A ft' /aclyr Required Storage Volume= F NIA 113 See Option 5 OPTION 4C Using the Required Storage Volume from Option 4A or 4B to determine # of Wrapped TRSC- A/Wattles Required These devices can be used to satisfy the velocity requirements in Step 3 Storage from Wrapped Type A Rock Silt Checks or Wattles Option of using Wrapped Type A Rock Silt Enter Ditch Front Slope Gradient (H VJ 2 1 Checks or Wattles Enter Ditch Back Slope Gradient (H to 1 5 1 Enter Device Height 1 5 It Area Behind Device 3 94 fe Length of Ditch Behind Device 150 00 ft Storage Behind Device (assumes 651 et7eclency) 127 97 113 See Option 5 Wrapped TRSC- A/Wattles required X Go to Option 5 Total N/A ft COMMENTS Designer still has the option of using USE 60 Day Option USE Infiltration Basin PAM will be applied on the last wattle before the TRSD B Dpuon 5 or 6 OPTION 6 Alternative Designs IMPORTANT Before using Option 6 be sure that the information in Step 1 is accurate! There may be cases where the RUSLE2 Analysis (Option 4) yields an excessive number of devices to achieve storage requirements and site constraints disallow infiltration and skimmer basin (option 5) installation Therefore it will be necessary to utilize the option below that best fits your situation The 60 Day Option Is not available for projects involving HOW or Trout Waters —The minimum basin size for a skimmer to function properly Is 20 x10 If the basin dimensions are less than this size an infiltration basin must be utilized regardless of dewatenng time 30 DAY OPTION Under these circumstances it will be necessary to provide a minimum of 23 / of the storage calculated using the RUSLE2 analysis (Option 4) during the Clearing and Grubbing Phase This section must then be permanently stabilized within 30 days from the time clearing and grubbing begins This is derived from Table 2 1 of the Level III Reference Manual which indicates that for any given 30 day penod in NC the maximum amount of Rainfall Energy that can be expected is 23 / of the annual total In this situation 23 / of RUSLE2 Required Volume Design Depth (ft) Proposed Basin Side Slopes Infiltratinn Analvsis 10 02 ft3 3 � 1 5 1 side slopes Web Soil Survey (htt / /soildatamart nres usda gov m/S;_0_1 00 Skimmer Basin 000 Required N/A Sat Hydraulic Con (Ksat micr o Sod Permeability m /hr Dewatering Time (Days) Basin Design Minimum 2 1(L W/ Ratio Suggested Top Width ft 2 Suggested Top Length (ft) 4 Final Design Top Width ft 5 Final Design Top Length ft 10 Final Design Depth ft 3 Weir Width ft 4 Skimmer Size (in) 15 Orifice Diameter m 025 Dewatering Time (Days) 1 Verity Storage (ft ► 5250 PAM must be Introduced by a minimum of 1 Wrapped Type A Rock Slit Check or Wattle upgrade from this outlet device Wattles are required for Trout or HOW waters 60 DAY OPTION Under these circumstances it will be necessary to provide a minimum of 43 / of the storage calculated using the RUSLE2 analysis (Option 4) during the Clearing and Grubbing Phase This section must then be permanently stabilized within 60 days from the time clearing and grubbing begins This is derived from Table 2 1 of the Level III Reference Manual which indicates that for any given 60 day period in NC the maximum amount of Rainfall Energy that can be expected is 43 / of the annual total In this situation 43 / of RUSLE2 Required Volume F-1874 ft3 Design Depth (ft) 3 . Proposed Basin Side Slopes 1 5 1 side slopes Infiltrnfinn Analvsis Web Soil Survey (http / /soildatamart nres usda govO misec 12 5 Use infdtratio i or 1 75 Skimmer Basin 09 Sat Hydraulic Con (Ksat micro Sod Permeability m /hr Dewaterin Time (Days) Basin Design Minimum 2 1 (L K9 Ratio Suggested To Width ft 2 Suggested Top Length (ft) 4 Final Design To Width ft 9 Final Design To Length ft 18 Final Design De ft 3 Weir Width ft 4 Skimmer Size (in) 15 Orifice Diameter in 025 Dewatering Time (Days) 4 Verify St rage (ft ) 20250 OK PAM must be introduced by a minimum of 1 Wrapped Type A Rock Silt Check or Wattle upgrade from this outlet device 'N`ete,�nTtheTEC�I'lan whether�th700003, R *JIR is use�� GENERAL NOTES If the project involves HOW or Trout Waters wattles in conjunction with PAM (polyacrylamide) must be installed according rt *-J, • q 1! , A r" IWWS .4y i4 STEP f Input Project Information items in red are REQUIRED Construction time < 6 months (YIN)? Y HQW (YIN)? N Elevation Trout (YIN)? N Tool ft From Sta 58 + o0 rom SECTION 1 of 1 to Sta 1 57 + 50 Storage from Wrapped Type A Rock Silt Checks or Wattles Level ui A IF 11M Right/Left Rt No Elev Data / Level III A Ex irabon / Ditch Grade 4 000 A Reviewed B Contributing 15 ft Date Reviewed RiW Width 30 feet Level III A # GOOD Place measure(s) on EC Plan Start Length of Run X 50 feet Level III A Expiration Disturbed Area = 003 acres Drainage Area 01 acres Drainage Area must equal or exceed the Disturbed Area found above Surface Dewatenng Device N EEI Is this a Typical Section (YIN)? Y 10, Will RUSLE2 be used to model the fast BMP at outlet the Non Typical sections? N Regression Constant C 659 Table 2 7 (Level 111 Ref Manual) Rainfall Factor R 160 Figure 2 1 Erodibility Factor K 024 Table 2 2 or Web Soil Survey (http✓/solldatamart nres usda govl) Soil Type Pacolet Rion informational purposes only STEP 2 Ditch Liner requirements Utilize the Required Liner tab and note recommendations on plans STEP 3 Velocity Control Requirements Velocity control is rot required TYPE B ROCK SILT CHECKS spaced at N/A feet The outlet d vice from Option 4 5 OR WATTLES or 6 will be sufficient See the HELP Tab for additional clarification and an example on how to place on plans Start with Option 4A OPTION 4 Using RUSLE2 Analysts to determine required storage OPTION 4A For DRAINAGE AREA < 3 Acre Use V=CRKs to determine storage Regression Constant C 659 Rainfall Factor R 160 Erodibility Factor K 024 From Step 1 above Soil Type Pacolet Rion Ditchline Slope s 0 04000 fllft V= 83002 It /ac/yr Required Storage Volume= 28 58 ft3 Us ng 82 / of Rainfall Factor see note in cell C4 Move on to Option 4C OPTION 4B For DRAINAGE AREA < 3 Acre Use RUSLE2 Modeling to determine storage Sediment Delivery from RUSLE2 0 00 tons/acre/yr Converting to 113laclyr NIA ft /ac/yr Required Storage Volume= F NIA ft" See Option 4A I OPTION 4C Using the Required Storage Volume from Option 4A or 4B to determine # of Wrapped TRSGA/Watt /es Required These devices can be used to satisfy the velocity requirements in Step 3 Storage from Wrapped Type A Rock Silt Checks or Wattles Option of using Wrapped Type A Rock Silt Enter Ditch Front Slope Gradient (H V) 2 1 ' Checks or Wattles Enter Ditch Back Slope Gradient (H V) 15 1 Enter Device Height 15 ft 3 94 � GOOD Place measure(s) on EC Plan Start Area Behind Device with the first device as clo a to the outlet Length of Ditch Behind Device 37 50 ft Point possible and then spaces them evenly Storage Behind Device (assumes 651 effeciency) 31 99 It' up the a grade PAM should not be placed on Wrapped TRSC- A/Wattles required X _ _ 10, the fast BMP at outlet Total 3199 ft rf%m"cmTe ne.Qmnef still has the ontion of usino Option 5 or 6 2 (18 ) wattles will be used for storage = (64 cu ft) and a 6x12x3 TRSD -B = (81 cu ft) will also be used Total storage = (145 cu ft ) PAM will be applied on the last wattle before the TRSD B i— STEP! Input Project Information items in red are REQUIRED Construction time < 6 months (YIN)? Y HflW (Y /N)? N Elevation Trout (YIN)? N Tool From Sta 1 58 + 00 SECTION 1 of 1 to Sta 1 57 + 50 Storage from Wraaoed Type A Rock Silt Checks or Wattles Level 111 A # IYm RighULeft Lt No Elev Data / Level III A Ex matron / Ditch Grade 4 000 / Reviewed B Contnbubng 15 it Date Reviewed RM Width 30 feet Level 111 A # GOOD Place measure(s) on EC Plan Sian Length of Run X 50 feet Level III A Expiration Disturbed Area = 003 acres Drainage Area 04 acres Drainage Area must equal or exceed the Disturbed Area found above Surface Dewatenng Device N Is this a Typical Section (YIN)? Y 10 Will RUSLE2 be used to model time last BMP at outlet the Non Typical sections? N Regression Constant C 659 Table 2 7 (Level 111 Ref Manual) Rainfall Factor R 160 Figure 2-1 Erodibility Factor K 024 Table 2 2 or Web Soil Survey (http Asoddatamart nres usda gow) Soil Type Pacolet Rion informational purposes only STEP 2 Ditch Liner requirements Utilize the Required Liner tab and note recommendations on plans STEP 3 Velocity Control Requirements Veloc.iiy control is not required TYPE BROCK SILT CHECKS spaced at N/A feet Th outlet device from Option 4 5 OR WATTLES or 6 will be sufficient See the HELP Tab for additional clarification and an example on how to place on plans Start with Option 4A OPTION 4 Using RUSLE2 Analysis to determine required storage OPTION 4A For DRAINAGE AREA < 3 Acre Use V =CRKs to determine storage Regression Constant C 659 Rainfall Factor R 160 Erodibility Factor K 024 From Step I above Soil Type Pacolet Rion Ditchline Slope s 0 04000 ft/ft V= 83002 ft /ac/yr Required Storage Volume= 28 58 ft3 Using 82 / of Rainfall Factor see note in cell C4 Move on to Option 4C OPTION 4B For DRAINAGE AREA < 3 Acre Use RUSLE2 Modeling to determine storage Sediment Deliveryfrom RUSLE2 0 00 tons/acrelyr Converting to ft3 /ac/yr N/A It /actyr Required Storage Volume= F N/A ft3 See Option 4A OPTION 4C Using the Required Storage Volume from Option 4A or4B to determine # of Wrapped TRSGA/Wattles Required These devices can be used to satisfy the velocity requirements in Step 3 Storage from Wraaoed Type A Rock Silt Checks or Wattles Option of using Wrapped Type A Rock Silt Enter Ditch Front Slope Gradient (H V) 2 1 Checks or Wattle Enter Ditch Back Slope Gradient (H V) 15 1 Enter Device Height 15 it i 3 94 ftz GOOD Place measure(s) on EC Plan Sian Device Area Behind De with the first device as close to the outlet Device Length of Ditch Behind De 37 50 Point possible and then space them evenly Storage Behind Device (assumes 651 effeciency) 31 99 ft3 up the a grade PAM should not be placed on Wrapped TRSC- A/Wattles required X 10 time last BMP at outlet Total 3199 ft ' PnRARX=nrrc nesinner still has the ontion of usino Ootion 5 or 6 2(18 ) wattles will be used for storage = ( 64 cu ft ) and a 6xl2x3 TRSD B = ( 81 cu ft) will also be used Total storage = (145 cu ft ) PAM will be applied on the last wattle before the TRSD B M M M M O O O O= O O O O O O O a O O O Z O O O ch M Icr) M C) O O O O= C:, O O O O O O O O O Z O O O r � � M M O O O O= O 0 0 O O O O O O O Z O O O M M M M O O O O= O O O O O O O O O O z O O Cl O O O O M N N O O O O O O O M N CV O 0 0 O _O .� O Cl) O L� O O T O ti N= +- O lD O O ti N N CO J O O O J r O z O C a C) O `O O �c M N N O O O C 0 0 cC M N N O O 00 O O O I� r 41 �-- W O JAI Ott N 0 0 J�� V Of- N r r O z r O J C C) v C) C) M N N O O C) O O 0O M N N O O O 0 cM N O �Oti 04 0 0 0 -iIx M O C) 1'- N 1 Oz s-T O V 00 N C O �M N N O �O 00 00 O `M N N O O 00 U JAN N O C', O ti 04 0 0 JAN N O �Ot~ N O z c- O C) C) NNU') (' OCOOOMNNO00 O O M O Z O T O M r O V O N O N OIq 00H O O �O►`rn ONO N J O O J ACM OQ �M O O O O CO N N O 0 0 O r- O O cM N N 0 0 Co O N co O O N CO O M Co M O O ti J J M O co J W T O (D �t f� nt d N ti aV+ N N Nv L N fL1 cm w w ai d s as s C4 Q C G ++ N N G G C G ++ N N C _ O o d > J o a G cc 02 o a) 0'-'� mo c G 9 c� 02 02 a"��o= c -o -s zwzw m _ (O J J C G C C LL 41 ay. ° = 0 C J J G G G G LL tm = c.. o 0 0 oss�C7 G Os O 0 o o �sC7t�s0 )n N r+ �+ Im l+''0 R r aV�+ 4) CL CL 4/ a=+ 'a i d > +� A R R ii d d a+ 'O V V 'G_ d ` a+ _ V a+ v+ ++ ++ Q 41 L a+ Q.> > NmNN Q O O L y `�aifANN =D O p L Ve _ to .F L L L L L = N (n .7 L J U) (� 0 L 0) 0 O d 41 m o t 1C •+ X d 0 .G V m .0 � N O 4/ d d d t0 ' x 0 0 s v 0 CL CL O O y 0 0® Q Q tv4 e0a d ��' d s to y O d O O 401 u 0 m m I"" t�UJ »JJQQtLmm2Q> wlo 2 d 1 0 J»JJQQILmm2Q> w r CM7 M O p p O O O O D O O O O O Z Co O O Z O O M O p p c'), O O O D O O O O O Z 00 O Z O O M co M M O O O O O O O O p p p p O Z 00 O Z 0 0 co M co co O p p O O O O D O O O O O Z O O O Z O O 00 0 0 0 cM N N U) 0 0 �Ch 4) 1 0 0 0 J� D lo 0 r NCO Ln M p N O O O Z COQ ra N OO i 00 LIB c) co CM N N Ln O O 00 co 00 O co N N LO O 00 d CO M N O r M co I r d O O O r q C) 0 0 0 J O I� N 0 0 0 J Ln Z c-s— OZ NN 0 0 0 O M N N Un 0 0 O r O O M N N LO O O G1 It r 0 M r r d (00 M r r C +- M M O O f� r C M M O O I� O O O J O I- N O 0 0 J O I- Z r r O Z r r I 00 N 00 O M N N LIB O O M r d r— Ln O NOI� �- O O C) C) 0 0 0 J J N N O r— N 0 00 O O Z r r O Z 00 (' O O O O M N N O Co O M Z O O M r O M F� O �'� N O OOti N= 0 00 aM 0 J r r O Z O O O O OO CT OO 0 ((M CV CV U) 0 00 C7 OO Ln C) 0 icM N N LO 0 0 Cl) (O 0 r M O I' N Z p (O ti O r r 0 f` O O (O r I- O J 0 0 ON. 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