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HomeMy WebLinkAbout20150097 Ver 1_401 Application_20150115BRL ENGINEERING & BYRD SURVEYING ` 112 East Johnston Street Providing Collaborative Civil Engineering & Surveying Services a Smithfield, NC 27577 (919) 989 -9300 brlemeineernns @earthlink net OR office @byrdsurvey com January 23, 2015 Ms. Karen Higgins NCDENR – NCDWR Central Office 1617 Mail Service Center 512 N. Salisbury St. (Archdale Building 9th Floor) Raleigh, NC 27699 -1617 Raleigh, NC 27604 Brian R Leonard, PE, PLS Linwood E Byrd, PLS Linwood E Byrd, lr , PLS Re: PCN Application: Drainage Improvements at Carver Living Facility for Durham, LLC Dear Ms Higgins: Durham, LLC of Elkhorn, WI plans to construct drainage improvements at a facility it owns, located off of East Carver Street in the City of Durham The project, which is more of a drainage "improvement /maintenance" project to correct a flooding problem, still requires 404/401 approvals to perform the construction in a Jurisdictional stream. Enclosed herewith for your review are the following documents: 1) Engineering/Construction Plans – 4 copy sets (2 Full Size 24 "x36" Sets & 2 Half Size 11 "x17' Sets) (1 copy delivered separately with PCN to USACE) 2) PCN Application Form – 4 copies (signed by myself as Agent for Owner) 3) Check in the amount of $57000 for the required review fee Note: We have also submitted the PCN form and plans separately to USACE. On behalf of Durham, LLC, 1 would appreciate your review of the attached 404/401 permit request and other related documents. Please contact me if you have any questions. Sincerely, WZ;F be –.—kV BRL ENGINEERING & BYRD SURVEYING Brian R. Leonard, PE, PLS BRL/bd Cc David Farley Attachments As Noted a �e ,tae i O�O� W ATF9OG J 1 o r Office Use Only Corps action ID no DWQ project no Form Version 1 4 January 2009 Page 1 of 10 Pre - Construction Notification (PCN) Form A. Applicant Information 1. Processing la Type(s) of approval sought from the Corps ❑X Section 404 Permit ❑ Section 10 Permit lb Specify Nationwide Permit (NWP) number- 27 or General Permit (GP) number 1c Has the NWP or GP number been verified by the Corps? ❑ Yes ❑ No 1d Type(s) of approval sought from the DWQ (check all that apply) ❑X 401 Water Quality Certification — Regular ❑ Non -404 Jurisdictional General Permit ❑ 401 Water Quality Certification — Express ❑ Riparian Buffer Authorization 1 e Is this notification solely for the record because written approval is not required? For the record only for DWQ 401 Certification ❑ Yes ❑X No For the record only for Corps Permit ❑ Yes ❑X No If Is payment into a mitigation bank or in -lieu fee program proposed for mitigation of impacts? If so, attach the acceptance letter from mitigation bank or in -lieu fee program ❑ Yes ❑X No 1g Is the project located in any of NC's twenty coastal counties If yes, answer 1 h below ❑ Yes ❑X No 1h Is the project located within a NC DCM Area of Environmental Concern (AEC)? ❑ Yes ❑ No 2. Project Information 2a Name of project Drainage Improvements at Carver Living Center 2b County Durham 2c Nearest municipality / town City of Durham 2d Subdivision name N/A inn 2e NCDOT only, T I.P or state project no T 1W 11111 3. Owner Information 20 'UU 3a Name(s) on Recorded Deed Durham LLC (formerly Durham Limited Partnership v 3b Deed Book and Page No DB 1551 PG 241 DENR - WATER RESOUgCpq 3c Responsible Party (for LLC if applicable)- MITTING Thomas Neshek 3d Street address P O. Box 75 3e City, state, zip Elkhorn, WI 53121 3f Telephone no 262 723 -6006 3g Fax no 3h Email address davidfarley437 @gmail corn Page 1 of 10 4. Applicant Information (if different from owner) 4a Applicant is ❑ Agent ❑ Other, specify 4b Name 4c Business name (if applicable) 4d Street address 4e City, state, zip 4f Telephone no 4g Fax no 4h Email address. 5. Agent/Consultant Information (if applicable) 5a Name Brian R. Leonard, PE, PLS 5b Business name (if applicable) BRL Engineering 5c Street address 112 East Johnston Street 5d City, state, zip Smithfield, NC 27577 5e Telephone no 919 989 -9300 5f Fax no 5g Email address- brlengineenng @earthlink.net ;I B. Project Information and Prior Project History 1. Property Identification 1a Property Identification no (tax PIN or parcel ID) PIN 0833 -13 -14 -3484 lb Site coordinates (in decimal degrees) Latitude 36 042733 Longitude -78 893816 1c Property size 825 acres 2. Surface Waters 2a Name of nearest body of water to proposed project Cub Creek (Tributary to Eno River) 2b Water Quality Classification of nearest receiving water WS -IV, NSW 2c River basin Neuse 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 Existing property is used for an assisted living facility, however, the portion of this site where protect activities are proposed is in a wooded portion of site that is separated from the commercial use and human activity 3b List the total estimated acreage of all existing wetlands on the property 3c List the total estimated linear feet of all existing streams (intermittent and perennial) on the property 260 3d Explain the purpose of the proposed project A structurally fading, double - barrel culvert on the property has become almost completely non - functioning, due to crushed inlet sections As a result, stormwater is backing up and flooding the adjacent street,creating a public safety hazard The project will open .' downstream flow by creating a new open channel & re-directing this open channel flow around the problem area 3e Describe the overall project in detail, including the type of equipment to be used - As explained above, new open channel flow will be redirected around the non - functioning culverts In addition, the inlets and outlets of the non- functioning culverts will be sealed off and backfilled. Anticipated equipment will be backhoes and maybe dozers and smaller earth - shaping equipment. Some trucking equipment will also be required for hauling /moving dirt. 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? ❑ Yes © No ❑ Unknown Comments: See comments in Section C 2 h below 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 ❑X No ❑ Unknown 5b If yes, explain in detail according to "help file" instructions 6. Future Project Plans 6a Is this a phased project? ❑ Yes ❑X No 6b If yes, explain Page 3 of 10 C. Proposed Impacts Inventory 1. Impacts Summary la Which sections were completed below for your project (check all that apply) ❑ Wetlands ❑X Streams - tributaries ❑ Buffers ❑ Open Waters ❑ Pond Construction 2. Wetland Impacts - See comments below.. . If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted 2a Wetland impact number Permanent (P) or Temporary 2b Type of impact 2c Type of wetland 2d Forested 2e Type of jurisdiction Corps (404,10) or DWQ (401, other) 2f Area of impact (acres) W1 - Choose one Choose one Yes /No - W2 - Choose one Choose one Yes /No - W3 - Choose one Choose one Yes /No - W4 - Choose one Choose one Yes /No - W5 - Choose one Choose one Yes /No - W6 - Choose one Choose one Yes /No - 2g Total Wetland Impacts: 2h Comments - Initial discussions with staff at USACE indicated that wetland delineation would not be required and wetland impacts would likely not apply The primary focus for this project is jurisdictional stream impacts (see next section) 3. Stream Impacts If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this question for all stream sites impacted 3a Stream impact number Permanent (P) or Temporary (T) 3b. Type of impact 3c. Stream name 3d. Perennial (PER) or intermittent (INT)? 3e Type of jurisdiction 3f. Average stream width (feet) 3g Impact length (linear feet) S1 P Excavation Cub Creek INT Corps 3 295 S2 - Choose one - - S3 - Choose one - S4 - Choose one - - S5 - Choose one S6 - Choose one - - 3h Total stream and tributary impacts 295 31 Comments - "Excavation" above pertains to construction of the new open stream channel around the existing, non - functioning culverts Page 4 of 10 4. Open Water Impacts If there are proposed impacts to lakes, ponds, estuaries, tributaries, sounds, the Atlantic Ocean, or any other open water of the U S then individually list all open water impacts below 4a Open water impact number Permanent (P) or Temp ora T 4b. Name of waterbody (if applicable) 4c Type of impact 4d Waterbody type 4e Area of impact (acres) 01 - Choose one Choose 02 - Choose one Choose 03 - Choose one Choose 04 - Choose one Choose 4f Total open water impacts 4g Comments 5. Pond or Lake Construction If pond or lake construction proposed, the complete the chart below 5a Pond ID number 5b Proposed use or purpose of pond 5c Wetland Impacts (acres) 5d. Stream Impacts (feet) 5e Upland (acres) Flooded Filled Excavated Flooded Filled Excavated P1 Choose one P2 Choose one 5f Total: 5g Comments. 5h Is a dam high hazard permit required? ❑ Yes ❑ No If yes, permit ID no: 51 Expected pond surface area (acres) 5j Size of pond watershed (acres) 5k Method of construction 6. Buffer Impacts (for DWQ) - See comments below .. . If project will impact a protected riparian buffer, then complete the chart below If yes, then individually list all buffer impacts below If any impacts require mitigation, then you MUST fill out Section D of this form 6a. Project is in which protected basin? ❑ Neuse ❑ Tar - Pamlico ❑ Catawba ❑ Randleman ❑ Other. 6b Buffer Impact number - Permanent (P) or Temporary T 6c Reason for impact 6d. Stream name 6e Buffer mitigation required? 6f Zone 1 impact (square feet ) 6g. Zone 2 impact (square feet B1 - Yes /No B2 - Yes/No B3 - YestNo B4 - Yes /No B5 - Yes /No B6 - Yes /No 6h Total Buffer Impacts: 61 Comments Conversations w /staff at NCDWQ indicated that activities for this particular Nationwide Permit are exempted from Buffer impacts Therefore, no buffer impacts are reported After construction, Riparian Buffers will be re- established along the new channel section r'1 -,.., G -IV 4 A D. Impact Justification and Mitigation SEE ALSO COVER LETTER FOR: 1. Avoidance and Minimization net increases in a atic resource function & services..." 1a Specifically describe measures taken to avoid or minimize the proposed impacts in designing project The primary goal of this protect is to correct a drainage problem that is creating a public safety /flooding hazard, while also adhering to all environmental requirements The simplest and most feasible construction option (the least earth moving) to accomplish these goals was to re- direct the channel flow around the problem area The only other options involved considerable earth moving and deep excavations in the problem areas which created more direct impact to sensitive areas, and more sedimentation potential within the limits of construction lb Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques As mentioned above, the proposed solution involves the least earth moving impacts, and consequently, the least sedimentation potential Therefore, construction activities, equipment, and erosion control measures are also minimized Also, the specified construction sequencing proposes to construct "and stabilize" the new channel to the maximum extent practical, prior to storm flows entering the new channel 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 ❑X No 2b If yes, mitigation is required by (check all that apply). ❑ DWQ ❑ Corps 2c If yes, which mitigation option will be used for this projects ❑ Mitigation bank ❑Payment to in -lieu fee program ❑ Permittee Responsible Mitigation 3. Complete if Using a Mitigation Bank 3a Name of Mitigation Bank 3b Credits Purchased (attach receipt and letter) Type Choose one Type Choose one Type: Choose one Quantity Quantity: Quantity 3c Comments- 4. Complete if Making a Payment to In -lieu Fee 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 Choose one 4d Buffer mitigation requested (DWQ only) square feet 4e Riparian wetland mitigation requested- acres 4f Non - riparian wetland mitigation requested. acres 4g. Coastal (tidal) wetland mitigation requested acres 4h Comments 5. Complete if Using a Permittee Responsible Mitigation Plan 5a If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan Page 6 of 10 n/l41 r....... 4 A 1..... --. n/VV1 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 Yes ©No buffer mitigation 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 6c 6d 6e Zone Reason for impact Total impact Multiplier Required mitigation (square feet) (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 n.,,.., -7 _r 4r% 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 0 Yes ❑ No within one of the NC Riparian Buffer Protection Rules? 1 b If yes, then is a diffuse flow plan included? If no, explain why The proposed plan is for new channel section and channel flow Reference the comments in Section C 6 ❑ Yes ❑ No 1 2. Stormwater Management Plan 2a What is the overall percent imperviousness of this project? N/A 2b Does this project require a Stormwater Management Plan' ❑ Yes No 2c If this project DOES NOT require a Stormwater Management Plan, explain why This project is more of a drainage "improvement/maintenance" project to correct an existing drainage problem, than a typical development protect No additional impervious area is proposed This protect will also be reviewed by the Engineering & Stormwater Departments by the City of Durham 2d If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan 2e Who will be responsible for the review of the Stormwater Management Plan? City of Durham (see next section) 3. Certified Local Government Stormwater Review 3a In which local government's jurisdiction is this project? City of Durham ❑ Phase II 0 NSW 3b Which of the following locally - implemented stormwater management programs ❑ USMP apply (check all that apply). 0 Water Supply Watershed ❑ Other 3c Has the approved Stormwater Management Plan with proof of approval been El Yes ❑ No attached Project more of a maintenance plan than a development plan This 4. Plan will e submitted to city for review ot their requirements ana DWQ Stormwater Program Review standards ❑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? 0 Yes ❑ No 5b Have all of the 401 Unit submittal requirements been mete 0 Yes ❑ No Page 8 of 10 F. Supplementary Information 1. Environmental Documentation (DWQ Requirement) la Does the project involve an expenditure of public (federal /state /local) funds or the ❑ Yes ❑X No use of public (federal /state) land? lb If you answered "yes" to the above, does the project require preparation of an environmental document pursuant to the requirements of the National or State El Yes ❑ No (North Carolina) Environmental Policy Act (NEPA /SEPA)? 1 c If you answered "yes" to the above, has the document review been finalized by the State Clearing House? (If so, attach a copy of the NEPA or SEPA final approval ❑ Yes ❑ No letter ) Comments 2. Violations (DWQ Requirement) 2a Is the site in violation of DWQ Wetland Rules (15A NCAC 2H 0500), Isolated Wetland Rules (15A NCAC 2H .1300), DWQ Surface Water or Wetland Standards, ❑Yes ❑X 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 El Yes ❑X No additional development, which could impact nearby downstream water quality? 3b If you answered "yes" to the above, submit a qualitative or quantitative cumulative impact analysis in accordance with the most recent DWQ policy If you answered "no," provide a short narrative description 4. Sewage Disposal (DWQ Requirement) 4a Clearly detail the ultimate treatment methods and disposition (non - discharge or discharge) of wastewater generated from the proposed project, or available capacity of the subject facility N/A Page 9of10 5. Endangered Species and Designated Critical Habitat (Corps Requirement) 5a WIII this project occur in or near an area with federally protected species or Yes ❑X No habitat? 5b Have you checked with the USFWS concerning Endangered Species Act El Yes QX No impacts? 5c If yes, indicate the USFWS Field Office you have contacted - 5d What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical Habitat? 6. Essential Fish Habitat (Corps Requirement) 6a Will this project occur in or near an area designated as essential fish habitat? ❑ Yes OX No 6b What data sources did you use to determine whether your site would impact Essential Fish Habitat? 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 E] Yes XZ 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? 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 City of Durham is the local floodplain authority and the City will review this plan for compliance with all stormwater, floodplain, and standard drainage requirements 8c What source(s) did you use to make the floodplain determination? As stated, this protect is more of a drainage "improvement/maintenance" protect, and not a development protect No structures or other hard surfaces are proposed Discussions with City staff indicated that fill can be placed in the floodplain, which maybe part of this project's construction 01 -12 -2015 Applicant/Agent's Printed Name Date Applicant/Agents Signature (Agent's signature is valid only if an authorization letter from the applicant is provided ) r'J --.. 4A -4V 4 A OWNERIAPPLICANT r U •7 ITACT DA WD FARLEY 723-6006 (Officl DG:me %M001TY OF DURHAM NC 7 SHEETINDEX SHEET TITLE 9 Me k,L §ZAARa EXISTING CONDITIONS SURVEY Others GRADINGP LAN ............................................................................................ ..............................2 EROSION CONTROL & DRAINAGE PLAN Al DETAILSHEETS .................................................................................... ............................... -1 to -2 <9 1> JAN 2 3 AM REVIEW PURPOSES ONLY • T REL EA SED FOR CONS TRUC TION) r CARjq �L AM INE F:rrr� i i l i %���� 121 -15 O vrm bdengineering.com Office: (919) 989-9300 NCBELS Firm briengineering @eardi ink.net gelds (919) 631-6934 No: P-0323 LEAD OTHER TERMINOLOGY EXISTING = MINIMUM SETBACK UNE PROPOSED _ ...: _...._. WATERLINE " %' (ALL SIZES) "WM' BLOWOFF 10" HYDRANT "GV" = VALVE °BV" = REDUCER 'FH' = METER "BFP" SEWERUNE 'RPZ' (ALL SIZES) "DCVA' MANHOLE "CB" = CL.EANOUT "O" = STORM DRAINAGE 'YI' = (ALL SIZES) We CATCH BASIN 'DIP' = DROP INL.ET/YARD INLET 'PVC" = POLYVINYL CHLORIDE PIPE "PE" = I OTHER SYMBOLS POWER/UTIUTY POLE UGHT POLE / AREA LIGHT - POWER/UTIUTY POLE W/UGHT -- -- . - - OVERHEAD POWER/UTILITY LINE -- GAS UNE (UNDERGROUND) UNDERGROUND ELECTRIC/POWER UNE UNDERGROUND COMMUNICATION UNE - - DITCH /CHANNEL __-- STREAM /CREEK/RIVER CWS /SWALEs and LJOW PROP. DITCH/SWALE (ROADSIDE/MINOR) _ PROP. DITCH/SWALE (OUTLET) PROP. DITCH/SWALE w/N A.G. S75 SINGE SINGLE STRAW TEMP. UNING OR EQUAL PROP. DITCH SWALEw/N A.G. S150 DOUBLE STRAW NET TEY4P. LINING OR EQUAL PROP. DITCH ALEw/N.A.G. SC250 TRIPLE STRAW/C000NU7 PERM. UNING OR EQUAL PROP. DITCH/SWALE _ w/UNING AS SPECIFIED SEE PLANS FOR REQUIRED GiTCH ALE SECTIONS - TEMP. DIVERSIOMi! DITCH - USE N.A.G. S75 - TEMP. UNING UkAESS OTHERWISE SPECIFIED PERM. DIVERSICH DITCH - USE N.A.G. S75 TEMP. UNING Uk1LESS OTHERWISE SPECIFIED SEE EROSION DETAILS FOR D ARSION DITCH SECTIONS CONSTRUCTION NOTES /SPECIFICATIONS GRADING - SITE AREAS (ie. BUILDINGS, VEHICULAR /STREETS, OR MASS GRADING) NOTE: A Detailed Grading Plan has been prepared to help facilitate proposed grades and layout. Site grading pertains mainly to excavation for a new stream channel; and backfilling to seal existing culvert inlets & outlets. 1. STRUCTURAL GRADING & BASES - MATERIALS & METHODS: CONTRACTOR shall be responsible for all earth material and base materials moved and used for ALL graded areas (including especially for this Site... stream channel excavation and backfill areas)_ Compaction for both subgrade and base material in streets and other paved vehicular areas shall be in a=rdance with current NCDOT Standards; or as recommended in a separate geotechnical report if applicable (see Special Note ii. below), Any work in existing NCDOT right -of -way shall be in accordance with the NCDOT Standards, as well as the provisions of an applicable NCDOT permit or encroachment (this also applies to work in ANY OTHER applicable utility /right- of-way and their applicable standards, permits, or encroachments). For grading in areas outside of paved vehicular areas, compaction shall be 95% standard proctor compacted in 5 -inch lifts, unless otherwise specified, or unless stated otherwise in a site- specific geotechnical report. 2. TESTING (COMPACTION): Quality Control (Field - Testing): CONTRACTOR shall provide for his own quality control for structural grading including proof - rolling and standard independent field testing for compaction of subgrades and stone bases for all vehicular areas (streets, parking, etc.) and building pads/foundations; and provide the same for any other graded areas in conformance with these specifications or any referenced standards as applicable (see previous Note 1). CONTRACTOR shall provide to ENGINEER a certified copy of proof - rolling & compaction test results from the independent testing firm. OWNER/Developer or ENGINEER will not perform, or be responsible for providing, any field testing on this Project. SPECIAL NOTES FOR ALL GRADING & EXCAVATIONS: i. EXCAVATIONS- 9 Excavations: cruse or provision nas been provided in the Construction Documents or Contract, For this project, refer to private contract between OWNER and CONTRACTOR. 1117--q_ ii. SOIUSUBSURFACE INVESTIGATIONS or Other DESIGN STUDIES: • Site Soil Borings and /or Geotechnical Report: To the ENGINEER's knowledge, there have been NO pre- asnstruction investigations made using soil borings to confirm the existence or non - existence of rock, poor soils, or other possible soil conditions below the surface, OR to classify soil types. Therefore, there have been NO site - specific engineered designs or recommendations mare regarding soil structures, subgrades, building pads, pavement bases or even pavement thickness. All design and construction for su,:�h materials shall be in accordance with appropriate standards (see Note 1 at top for reference standards and specs for structural grrading); or otherwise in accordance with acceptable industry practice. • Sub - surface Utility Locations or Other Sub - surface Investigations: CONTRACTOR is responsible for lom.* ng underground utilities and other facilities prior to construction and the protection of utilities during construction. To the ENGINEER's F,nowledge, there have been NO Pre-construction investigations made using excavations, pipeline - locating equipment or ground - penetrating technology to determine a precise location (either horizontal or vertical) for utilities or other possible hazards below the surface. Where: evidence of utilities or other facilites was evident at the surface; such evidence was field located by the Project Surveyor and indicated on the Plans. The discovery of any unknown/unforeseen facilities or condtions in the field shall be reported immediately to the ENGINEER; and additional time, services, or expenses may be required to make appropriate adjustments. iii. QUANTITIES: CONTRACTOR shall estimate all earthwork quantities based on existing & proposed contours and other details/sections on the Plans and shall bid any lump sum work or provide overall pricing according to his own take -offs. ENGINEER has NOT performed a separate takeoff for earthwork or other quantities. ENGINEER makes no representation regarding exact earthwwork quantities or a balanced site. CONTRACTOR shall make request to ENGINEER 9 any adjustment to grades are anticipated or necessary in order to try and balance earthwork, or to reduce import or waste material. If adjustments are requested, CONTRACTOR shall give s, ecific information regarding the extent and degree of any grade changes or other changes to the plan. Otherwise, CONTRACTOR shall be responsible for all import or waste material as needed to bring the site to finish grade. iv. EROSION CONTROL: This site disturber LESS THAN than 1.0 acre; and therefore, an erosion control plarvis NOT required by the state or designated local agency. Some Erosion Control measures are indicated on the Plans; as a minimum for downstream protection. CONTRACTOR shall provide any /all erosion measures as :-eeded to keep sediment contained on -site, in accordance with NC Sedimentation & Erosion Control Law. v. FINAL TOPSOIL & SEEDING. All denuded areas left exposed shall be stabilized within a short time frame to prevent erosion in accordance with the Ground Stabilization Requirements in the Erosion Control Plan (when applicable); or otherwise acccr ing to an approved seasonal mix, with a final straw mulch and tack coat. Finallpermanent seeding cover shall be as coordinated between OWNER and CONTRACTOR (and in accordance with the seeding schedule in the Erosion Control E'an, when applicable). e Topsoil shall be spread appropriately in areas for final seeding and INCLUDED as pad of normal grading oaerations, in order to facilitate grass growth for permanent seeding; or plant growth in any landscaped areas. (Stockpile any topsoil for later use in areas indicated on Plan, or otherwise as coordinated with OWNER). Vi. WASTE MATERIAL: Any usable waste material remaining after finished grades have been established may to distributed in appropriate areas within the limits of disturbance, when authorized by OWNER and ENGINEER. Excess material not utiFzed on -site shall be disposed of by CONTRACTOR. Notify the appropriate permitting authority upon any grading beyond the limits of distu. �•ance (esp. NC Diem. of Land Resources if applicable for erosion control and /or local health department if applicable for septic systems)_ 1. STANDARD DESIGNS: Materials, cross- sections, thicknesses, and other specific designs for asphalt and /or =ncrete pavements (and even Pedestrian/sidewalk pavements) on this Plan are based on NCDOT standards or designs, or other accepted standards or details. See typical sections or details in these plans, or refer to NCDOT standards, or appropriate reference standard. A?,y other asphalt, concrete, or other structural materials as may be used on this project have not been designed or engineered; and CONTPACTOR is responsible for any special design or engineering related to other such structural materials. 2. STANDARD CONSTRUCTION MATERIAL & METHODS: CONTRACTOR is responsible for all asphalt and ccricrete pavement materials and related construction methods on site. All asphalt and concrete pavement materials and methods on this siia shall be in accordance with current NCDOT Standards. Any work in existing NCDOT right -of -way shall be in accordance with the NCDOT Standards, as well as the provisions of an applicable NCDOT permit or encroachment (this also applies to work in ANY OTHER appfi= a utility/right -of -way and their applicable standards, permits, or encroachments). 3. TESTING: Quality Control (Field - Testing): CONTRACTOR shall provide for standard independent field testin©i br density of asphalt, concrete strength, slump tests, or other field tests; AND in conformance with the above - referenced standards as applicable. OWNER/Developer or ENGINEER will not perform, or be responsible for providing, any field testing on this Proiect. Quality Assurance: CONTRACTOR shall be responsible for assuring that all produced, pre- fabricated, and pre- manufactured products and materials are suffient for the intended use and tested according the required NCDOT standard, or otherwise according to an accepted industry standard; AND CONTRACTOR shall provide certifications and other documentation verifying such product testing upon request by ENGINEER. 4. QUANTITIES: CONTRACTOR shall estimate all asphalt and concrete quantities based on typical sections or offer dimensions as called for on the Plans, as well as the existing and proposed profile grades and /or contours, and shall bid any lump sum work or provide overall pricing according to his own take -offs. ENGINEER has not performed a separate take -off for asphalt, concrete or other quantities. 5. OTHER SURFACE MATERIALS: See Final Surfaces Plan k:VIA Accessibility: Any construction for handicap accessibility related to this plan shall crj)nform to ADA Regulations, 2010 Standards ( made up of "Title II" 28CFR 35.51 or "Title 111" 28CFR Part 36, Subpart D, as applicable; plus "2004 ADAAG" at 36CFR Part 1191, appendices B&D); construction shall also comply with ICC /ANSI 117.1, latest version; whichever is more stringent. Any accessible constrcec6on related to transportation facilities shall conform to USDOT ADA Standards for Transportation Facilities, 2006. See also "Special Notes - Accessibility" on Final Surfaces/Paving Plan. 2. Civil/Site Permits & Approvals; and Conditions of Approval: OWNER and/or Dever, as the responsible party to all site construction, shall obtain the proper permits or approvals related to :CMI/site construction as may be required from local & state agencies (independent from any building /structure approvals and the local building permit process). CONTRACTOR shall request from OWNER all copies off ;+written permits and approvals. Furthermore, CONTRACTOR shall incorporate any provisions or conditons of such approvals into their scope of work; and include such work within their pricing or the Bid Schedule. DOWNER is encouraged to obtain all approvals and provide them to CONTRACTOR prior to obtaining pricing or Bids. 3. Separate Building Plan Approval: N/A 4. Existing Conditions: Property & Topographic Surveys: Property/boundary informatkm & existing features Information is taken from a survey prepared by the Project Surveyor, Byrd Surveying, of Smithfield, INC. Existing boundary, site features, and topographic data shown herein were extrapolated directly from the surveyors digital file. Be advised that all construction along property lines and setbacks shall be coordinated between the CONTRACTOR and surveyor as required. Reference "Existing Condirdons Survey" included herein for complete survey. 5_ CONTRACTOR to Have Knowledge of Site Prior to Bidding: CONTRACTOR shall Y✓ sit site prior to bidding and satisfy himself as to all items that may affect the cost and progress of work. Any conflicts shall be located sufficiently in advance in order to allow for adjustments and to avoid interference damning construction. Notify ENGINEER of any conflicts. 6. 100 -Year FEMA Floodplain: This site IS located within the 100 -year floodplain, as irklicated hereon. UNKNOWIN/1LINSUITABLE CONDITIONS IN EXCAVATIONS IF rock, wet/unsuitable subgrade soils, high water table or other unknown conditions are encountered in existing soils during excavations, then CONTRACTOR, ENGINEER, and OWNER/D'.EVELOPER shall coordinate to determine a feasible solution; including Consultation with a Geotechnicall Engineer if necessary. (Typical solutions include undercutting & backfill with suitable material; installation of a subsurface drainage system using perforated pipe; well- pointing; rock ripping; rock blasting, etc.) Unknown conditions or subsurface soil classifications should be addressed in the Contract Documents between CONTRACTOR and OWNER. IF a geotechnical study & report has been prepared specifically for this situ, then CONTRACTOR shall include the relevant geotech recommendations in the price of the work (such special recommendations shall superced any oonflict/diskxepancy with basic standards or typical sections in these plans/specifications). iiIiiipiiiI CONSTRUCTION NOTES /SPECIFICATIONS GRADING - STORM DRAINAGE (ie. TRENCH EXCAVATION; BACISFILL; BASIC GRADING) 1. STRUCTURAL GRADING & BASES - MATERIALS & METHODS: CONTRACTOR shall be responsible for all earth material and base materials moved and used for stone drainage grading, pipe trenching and backfilling. CONTRACTOR shall ensure that all material for such aiceas (whether from on -site or hauled -in) is suitable for the intended use. Compaction for subgrades, french bases, or backfill, shall be in accordance with current NCDOT Standards. Any work in exisdrig NCDOT right- of-way shall be in accordance with the NCDOT Standards, as well as the provisions of an applicable NCDOT permit or encroachment (this also applies to work in ANY OTHER applicable utility/right-of -way and their applicable standards, permits, or encroachments). 2. TESTING (COMPACTION): Quality Control (Field - Testing): No field- testing (corripaction testing) for storm drainage is required, UNLESS required by an applicable encroachment or @art of an agency approval; in which case CONTRACTOR shall provide for such testing with an independent/certified testing firth. OWNER/Developer or ENGINEER will not perform, or be responsible for providing any field testing on this Project IF HOWEVER, insufficient products, material or methods are suspected in the field and ENGINEER orders a field test; then CONTRACTOR shall provide for such testing; however, if test passes then CONTRACTOR may credit the charge for testing to die OWNER on a subsequent invoice. CONSTRUCTION NOTES /SPECIFICATIONS - STORM DRAINAGE MATERIALS & METHODS 1. STANDARD DESIGNS: Materials, thicknesses, cross - sections, and other specific designs for storm drainage structures & piping; including concrete (whether cast -in -place or pre - cast:); block; bride; castings; pipe material; and any other storm drainage material on this Plan are based on NCDOT standard details or designs, or other accepted standards or details. See typical sections or details in these plans, or refer to NCDOT standards, or appropriate reference standard. Any other structural materials or products (which are not standard or not detailed in the plans or specs) have not been designed or engineered; and CONTRACTOR or Supplier is responsible for any special design or engineering related to other such structural materials. 2. STANDARD CONSTRUCTION MATERIAL & METHODS: CONTRACTOR is responsible for all storm drainage materials and related construction methods on site. All storm drainage materials and methods on this site shall be in accordance with current NCDOT Standards. Any ,work in existing NCDOT right -of -way shall be in accordance with the NCDOT Standards, as well as, the provisions of an applicable NCDOT permit or encroachment (this also applies to work in ANY t~JTHER applicable utility /right -of -way and their applicable standards, permits, or encroachments). 3. TESTING: Quality Control (Field- Testin9): No field- testing of products or materiaU ,Jor storm drainage is required, UNLESS required by an applicable encroachment or part of an agency approval; in which case CONTRACTOR shall provide for such testing. OVWER/Developer or ENGINEER will not perform, or be responsible for providing, any field testing on thb. Project. IF HOWEVER, insufficient products, material or methods are suspected in the field and ENGINEER orders a field test; then CONTRACTOR shall provide for such testing; however, if ttiest passes then CONTRACTOR may credit the charge for testing to the OWNER on a subsequent: jinvoice. Quaf Assurance: CONTRACTOR shall be responsible for assuring that all produced, prefabricated, and pre - manufactured products and materials are suffient for the intended use and tested according the required NCDOT standard, or otherwise according to an accepted industry standard; AND CONTRACTOR shall provide certifications and other documentation verifying such: product testing upon request by ENGINEER. 4. QUANTITIES: CONTRACTOR shall estimate all storm drainage quantities based rum details, typical sections or other dimensions as called for on the Plans, as well as the existing and proposed contours and /or profile grades, and shall bid any lump sum work or provide overall pricing au�ording to his own take -offs. ENGINEER has not performed a separate take -off for storm drainage or !other quantities. Know below. ' ! 1, h —AIRF. "M Ak lk% 5311 11111 111, OU REVIEW PURPOSES (NOTRELl'-7ASEDFOR CONSTRUCTION) Z _O to W W OTHER TERMINOLOGY "MSBL" = MINIMUM SETBACK UNE 'MH" = MANHOLE ('SS' = SANITARY SEWER) " %' = CLEANOUT "WM' WATER METER "WV' = WATER VALVE "GV" = GATE VALVE °BV" = BUTIERFLY VALVE 'FH' = FIRE HYDRANT "BFP" = BACKFLOW PREV?iTER 'RPZ' = REDUCED PRES9JRE BFP "DCVA' = DOUBLE CHECK VALVE ASSEMBLY am "CB" = CATCH BASIN (NCDOT - TYP) "O" = DROP INLET (NCDOT - TYP) 'YI' = YARD INLET We DOWNSPOUT 'DIP' = DUCTILE IRON PIPE: 'PVC" = POLYVINYL CHLORIDE PIPE "PE" = POLYETHYLENE PIPE "HOPE" HIGH- DENSITY P�XYEHTYLENE PIPE *RCP' = REINFORCED COKfURETE PIPE "PP' POWDER POLE 'B /C" = BACK OF CURB "F /C" FACE OF CURB (AT FLOW UNE) 'LP" = UGHT POLE °PP/1L_ = POWER POLE WAJGHT CONSTRUCTION NOTES /SPECIFICATIONS GRADING - SITE AREAS (ie. BUILDINGS, VEHICULAR /STREETS, OR MASS GRADING) NOTE: A Detailed Grading Plan has been prepared to help facilitate proposed grades and layout. Site grading pertains mainly to excavation for a new stream channel; and backfilling to seal existing culvert inlets & outlets. 1. STRUCTURAL GRADING & BASES - MATERIALS & METHODS: CONTRACTOR shall be responsible for all earth material and base materials moved and used for ALL graded areas (including especially for this Site... stream channel excavation and backfill areas)_ Compaction for both subgrade and base material in streets and other paved vehicular areas shall be in a=rdance with current NCDOT Standards; or as recommended in a separate geotechnical report if applicable (see Special Note ii. below), Any work in existing NCDOT right -of -way shall be in accordance with the NCDOT Standards, as well as the provisions of an applicable NCDOT permit or encroachment (this also applies to work in ANY OTHER applicable utility /right- of-way and their applicable standards, permits, or encroachments). For grading in areas outside of paved vehicular areas, compaction shall be 95% standard proctor compacted in 5 -inch lifts, unless otherwise specified, or unless stated otherwise in a site- specific geotechnical report. 2. TESTING (COMPACTION): Quality Control (Field - Testing): CONTRACTOR shall provide for his own quality control for structural grading including proof - rolling and standard independent field testing for compaction of subgrades and stone bases for all vehicular areas (streets, parking, etc.) and building pads/foundations; and provide the same for any other graded areas in conformance with these specifications or any referenced standards as applicable (see previous Note 1). CONTRACTOR shall provide to ENGINEER a certified copy of proof - rolling & compaction test results from the independent testing firm. OWNER/Developer or ENGINEER will not perform, or be responsible for providing, any field testing on this Project. SPECIAL NOTES FOR ALL GRADING & EXCAVATIONS: i. EXCAVATIONS- 9 Excavations: cruse or provision nas been provided in the Construction Documents or Contract, For this project, refer to private contract between OWNER and CONTRACTOR. 1117--q_ ii. SOIUSUBSURFACE INVESTIGATIONS or Other DESIGN STUDIES: • Site Soil Borings and /or Geotechnical Report: To the ENGINEER's knowledge, there have been NO pre- asnstruction investigations made using soil borings to confirm the existence or non - existence of rock, poor soils, or other possible soil conditions below the surface, OR to classify soil types. Therefore, there have been NO site - specific engineered designs or recommendations mare regarding soil structures, subgrades, building pads, pavement bases or even pavement thickness. All design and construction for su,:�h materials shall be in accordance with appropriate standards (see Note 1 at top for reference standards and specs for structural grrading); or otherwise in accordance with acceptable industry practice. • Sub - surface Utility Locations or Other Sub - surface Investigations: CONTRACTOR is responsible for lom.* ng underground utilities and other facilities prior to construction and the protection of utilities during construction. To the ENGINEER's F,nowledge, there have been NO Pre-construction investigations made using excavations, pipeline - locating equipment or ground - penetrating technology to determine a precise location (either horizontal or vertical) for utilities or other possible hazards below the surface. Where: evidence of utilities or other facilites was evident at the surface; such evidence was field located by the Project Surveyor and indicated on the Plans. The discovery of any unknown/unforeseen facilities or condtions in the field shall be reported immediately to the ENGINEER; and additional time, services, or expenses may be required to make appropriate adjustments. iii. QUANTITIES: CONTRACTOR shall estimate all earthwork quantities based on existing & proposed contours and other details/sections on the Plans and shall bid any lump sum work or provide overall pricing according to his own take -offs. ENGINEER has NOT performed a separate takeoff for earthwork or other quantities. ENGINEER makes no representation regarding exact earthwwork quantities or a balanced site. CONTRACTOR shall make request to ENGINEER 9 any adjustment to grades are anticipated or necessary in order to try and balance earthwork, or to reduce import or waste material. If adjustments are requested, CONTRACTOR shall give s, ecific information regarding the extent and degree of any grade changes or other changes to the plan. Otherwise, CONTRACTOR shall be responsible for all import or waste material as needed to bring the site to finish grade. iv. EROSION CONTROL: This site disturber LESS THAN than 1.0 acre; and therefore, an erosion control plarvis NOT required by the state or designated local agency. Some Erosion Control measures are indicated on the Plans; as a minimum for downstream protection. CONTRACTOR shall provide any /all erosion measures as :-eeded to keep sediment contained on -site, in accordance with NC Sedimentation & Erosion Control Law. v. FINAL TOPSOIL & SEEDING. All denuded areas left exposed shall be stabilized within a short time frame to prevent erosion in accordance with the Ground Stabilization Requirements in the Erosion Control Plan (when applicable); or otherwise acccr ing to an approved seasonal mix, with a final straw mulch and tack coat. Finallpermanent seeding cover shall be as coordinated between OWNER and CONTRACTOR (and in accordance with the seeding schedule in the Erosion Control E'an, when applicable). e Topsoil shall be spread appropriately in areas for final seeding and INCLUDED as pad of normal grading oaerations, in order to facilitate grass growth for permanent seeding; or plant growth in any landscaped areas. (Stockpile any topsoil for later use in areas indicated on Plan, or otherwise as coordinated with OWNER). Vi. WASTE MATERIAL: Any usable waste material remaining after finished grades have been established may to distributed in appropriate areas within the limits of disturbance, when authorized by OWNER and ENGINEER. Excess material not utiFzed on -site shall be disposed of by CONTRACTOR. Notify the appropriate permitting authority upon any grading beyond the limits of distu. �•ance (esp. NC Diem. of Land Resources if applicable for erosion control and /or local health department if applicable for septic systems)_ 1. STANDARD DESIGNS: Materials, cross- sections, thicknesses, and other specific designs for asphalt and /or =ncrete pavements (and even Pedestrian/sidewalk pavements) on this Plan are based on NCDOT standards or designs, or other accepted standards or details. See typical sections or details in these plans, or refer to NCDOT standards, or appropriate reference standard. A?,y other asphalt, concrete, or other structural materials as may be used on this project have not been designed or engineered; and CONTPACTOR is responsible for any special design or engineering related to other such structural materials. 2. STANDARD CONSTRUCTION MATERIAL & METHODS: CONTRACTOR is responsible for all asphalt and ccricrete pavement materials and related construction methods on site. All asphalt and concrete pavement materials and methods on this siia shall be in accordance with current NCDOT Standards. Any work in existing NCDOT right -of -way shall be in accordance with the NCDOT Standards, as well as the provisions of an applicable NCDOT permit or encroachment (this also applies to work in ANY OTHER appfi= a utility/right -of -way and their applicable standards, permits, or encroachments). 3. TESTING: Quality Control (Field - Testing): CONTRACTOR shall provide for standard independent field testin©i br density of asphalt, concrete strength, slump tests, or other field tests; AND in conformance with the above - referenced standards as applicable. OWNER/Developer or ENGINEER will not perform, or be responsible for providing, any field testing on this Proiect. Quality Assurance: CONTRACTOR shall be responsible for assuring that all produced, pre- fabricated, and pre- manufactured products and materials are suffient for the intended use and tested according the required NCDOT standard, or otherwise according to an accepted industry standard; AND CONTRACTOR shall provide certifications and other documentation verifying such product testing upon request by ENGINEER. 4. QUANTITIES: CONTRACTOR shall estimate all asphalt and concrete quantities based on typical sections or offer dimensions as called for on the Plans, as well as the existing and proposed profile grades and /or contours, and shall bid any lump sum work or provide overall pricing according to his own take -offs. ENGINEER has not performed a separate take -off for asphalt, concrete or other quantities. 5. OTHER SURFACE MATERIALS: See Final Surfaces Plan k:VIA Accessibility: Any construction for handicap accessibility related to this plan shall crj)nform to ADA Regulations, 2010 Standards ( made up of "Title II" 28CFR 35.51 or "Title 111" 28CFR Part 36, Subpart D, as applicable; plus "2004 ADAAG" at 36CFR Part 1191, appendices B&D); construction shall also comply with ICC /ANSI 117.1, latest version; whichever is more stringent. Any accessible constrcec6on related to transportation facilities shall conform to USDOT ADA Standards for Transportation Facilities, 2006. See also "Special Notes - Accessibility" on Final Surfaces/Paving Plan. 2. Civil/Site Permits & Approvals; and Conditions of Approval: OWNER and/or Dever, as the responsible party to all site construction, shall obtain the proper permits or approvals related to :CMI/site construction as may be required from local & state agencies (independent from any building /structure approvals and the local building permit process). CONTRACTOR shall request from OWNER all copies off ;+written permits and approvals. Furthermore, CONTRACTOR shall incorporate any provisions or conditons of such approvals into their scope of work; and include such work within their pricing or the Bid Schedule. DOWNER is encouraged to obtain all approvals and provide them to CONTRACTOR prior to obtaining pricing or Bids. 3. Separate Building Plan Approval: N/A 4. Existing Conditions: Property & Topographic Surveys: Property/boundary informatkm & existing features Information is taken from a survey prepared by the Project Surveyor, Byrd Surveying, of Smithfield, INC. Existing boundary, site features, and topographic data shown herein were extrapolated directly from the surveyors digital file. Be advised that all construction along property lines and setbacks shall be coordinated between the CONTRACTOR and surveyor as required. Reference "Existing Condirdons Survey" included herein for complete survey. 5_ CONTRACTOR to Have Knowledge of Site Prior to Bidding: CONTRACTOR shall Y✓ sit site prior to bidding and satisfy himself as to all items that may affect the cost and progress of work. Any conflicts shall be located sufficiently in advance in order to allow for adjustments and to avoid interference damning construction. Notify ENGINEER of any conflicts. 6. 100 -Year FEMA Floodplain: This site IS located within the 100 -year floodplain, as irklicated hereon. UNKNOWIN/1LINSUITABLE CONDITIONS IN EXCAVATIONS IF rock, wet/unsuitable subgrade soils, high water table or other unknown conditions are encountered in existing soils during excavations, then CONTRACTOR, ENGINEER, and OWNER/D'.EVELOPER shall coordinate to determine a feasible solution; including Consultation with a Geotechnicall Engineer if necessary. (Typical solutions include undercutting & backfill with suitable material; installation of a subsurface drainage system using perforated pipe; well- pointing; rock ripping; rock blasting, etc.) Unknown conditions or subsurface soil classifications should be addressed in the Contract Documents between CONTRACTOR and OWNER. IF a geotechnical study & report has been prepared specifically for this situ, then CONTRACTOR shall include the relevant geotech recommendations in the price of the work (such special recommendations shall superced any oonflict/diskxepancy with basic standards or typical sections in these plans/specifications). iiIiiipiiiI CONSTRUCTION NOTES /SPECIFICATIONS GRADING - STORM DRAINAGE (ie. TRENCH EXCAVATION; BACISFILL; BASIC GRADING) 1. STRUCTURAL GRADING & BASES - MATERIALS & METHODS: CONTRACTOR shall be responsible for all earth material and base materials moved and used for stone drainage grading, pipe trenching and backfilling. CONTRACTOR shall ensure that all material for such aiceas (whether from on -site or hauled -in) is suitable for the intended use. Compaction for subgrades, french bases, or backfill, shall be in accordance with current NCDOT Standards. Any work in exisdrig NCDOT right- of-way shall be in accordance with the NCDOT Standards, as well as the provisions of an applicable NCDOT permit or encroachment (this also applies to work in ANY OTHER applicable utility/right-of -way and their applicable standards, permits, or encroachments). 2. TESTING (COMPACTION): Quality Control (Field - Testing): No field- testing (corripaction testing) for storm drainage is required, UNLESS required by an applicable encroachment or @art of an agency approval; in which case CONTRACTOR shall provide for such testing with an independent/certified testing firth. OWNER/Developer or ENGINEER will not perform, or be responsible for providing any field testing on this Project IF HOWEVER, insufficient products, material or methods are suspected in the field and ENGINEER orders a field test; then CONTRACTOR shall provide for such testing; however, if test passes then CONTRACTOR may credit the charge for testing to die OWNER on a subsequent invoice. CONSTRUCTION NOTES /SPECIFICATIONS - STORM DRAINAGE MATERIALS & METHODS 1. STANDARD DESIGNS: Materials, thicknesses, cross - sections, and other specific designs for storm drainage structures & piping; including concrete (whether cast -in -place or pre - cast:); block; bride; castings; pipe material; and any other storm drainage material on this Plan are based on NCDOT standard details or designs, or other accepted standards or details. See typical sections or details in these plans, or refer to NCDOT standards, or appropriate reference standard. Any other structural materials or products (which are not standard or not detailed in the plans or specs) have not been designed or engineered; and CONTRACTOR or Supplier is responsible for any special design or engineering related to other such structural materials. 2. STANDARD CONSTRUCTION MATERIAL & METHODS: CONTRACTOR is responsible for all storm drainage materials and related construction methods on site. All storm drainage materials and methods on this site shall be in accordance with current NCDOT Standards. Any ,work in existing NCDOT right -of -way shall be in accordance with the NCDOT Standards, as well as, the provisions of an applicable NCDOT permit or encroachment (this also applies to work in ANY t~JTHER applicable utility /right -of -way and their applicable standards, permits, or encroachments). 3. TESTING: Quality Control (Field- Testin9): No field- testing of products or materiaU ,Jor storm drainage is required, UNLESS required by an applicable encroachment or part of an agency approval; in which case CONTRACTOR shall provide for such testing. OVWER/Developer or ENGINEER will not perform, or be responsible for providing, any field testing on thb. Project. IF HOWEVER, insufficient products, material or methods are suspected in the field and ENGINEER orders a field test; then CONTRACTOR shall provide for such testing; however, if ttiest passes then CONTRACTOR may credit the charge for testing to the OWNER on a subsequent: jinvoice. Quaf Assurance: CONTRACTOR shall be responsible for assuring that all produced, prefabricated, and pre - manufactured products and materials are suffient for the intended use and tested according the required NCDOT standard, or otherwise according to an accepted industry standard; AND CONTRACTOR shall provide certifications and other documentation verifying such: product testing upon request by ENGINEER. 4. QUANTITIES: CONTRACTOR shall estimate all storm drainage quantities based rum details, typical sections or other dimensions as called for on the Plans, as well as the existing and proposed contours and /or profile grades, and shall bid any lump sum work or provide overall pricing au�ording to his own take -offs. ENGINEER has not performed a separate take -off for storm drainage or !other quantities. Know below. ' ! 1, h —AIRF. "M Ak lk% 5311 11111 111, OU REVIEW PURPOSES (NOTRELl'-7ASEDFOR CONSTRUCTION) Z _O to W W ftQ-.— W J 0 p I- W F- Z Q D U LO 4 U O 111 J < O N Z Z X m 11f m cV d0' o a � O >- m Z m W ~ � Z U UJ O Q Q W O O �p (U > U 0- ca LL. 02 0 J4 W ANN ii! U un W Man ®s* LU C C4 w vim Z � 00 ca276 0— C" _ e- w so- � LU W E v CL ti x OFJ. W c Y oC cc cb U cr- m V`\ m coo mm cc C 0 aw c D UJ C Z X 1r 'R ftQ-.— W J 0 p W F- Z 1`5 U 4 U 111 J < O LL a Z o a o W U O oaQ J Militia ft > z �O �° W 0 0 all ii! un W ° Z co Cn � N UJ f w Cal CL ti x W cc U V`\ coo D UJ Z X O p p <( LL- 0 Z CO2 UJ I 0 U I rl Z H H W M C0 Z `cY =3 O 0 C a iD = 0 o Z mY Z O0a � U Z U Sheet No. of PROJECT ROTES, LEGEND & BRIEF SPECS SPECIAL NOTES FOR EROSION CONTROL FOR ADDITIONAL INFORMATION PERTAINING TO GRADING, MATERIALS AND METHODS 1. This site disturbs less than one acre and does not require a separate/approved Erosion Control Plan prior to construction. FOR STORM DRAINAGE CONSTRUCTION, For this Plan, drainage outlets have been designed with permanent rip rap dissipators, and drainage ditches/channels/slopes SEE BRIEF SPECIFICATIONS ON SHEET 1. have been designed with synthetic linings, as typically required for erosion; and some minimal temporary measures (ie. silt fencing, straw, wattle dams, etc.) are indicated on this plan. However, CONTRACTOR shall be responsible for any additional measures as necessary to contain sediment on -site; including any additional measures related to CONTRACTOR's own construction phasing and staging areas. Any stockpile areas shall be seeded & mulched appropriately with sift fencing & outlets along the downstream portion of the stockpile. Erosion devices shall be cleaned and maintained throughout construction, and any sedimenfaiton into downstream areas shall be corrected immediately. All temporary sedimentlerosion devices shall be removed after upstream areas have been stabilized and accepted. I 2. The City of Durham requires that the new channel section be stabilized with final grass seeding prior to opening the channel for storm flow. dote the temporary dam as indicated on this plan to keep existing stream flows separate from new channel construction. Men grass has become established and stabilized on the new channel slopes, notify City of Durham Engineering Department (Stormwater Section) for a final inspection. Upon approval by City, the temporary dam may be removed and the existing stream flow re- directed to the new channel section_ CONTRACTOR shall sequence all construction as needed to e!,Q��`��o � complete the prvjec t according to this plan and all local, state and federal requirements. It is anticipated on this project that bypass pumping will be necessary for normal stream flow and small storm events during some phases of construction and CONTRACTORS shall plan accordingly. It is also recognized on this project that larger storm events during construction has the potential to overburden bypass pumping and washout downstream construction prior to stabilizing. Therefore, CONTRACTOR �11 � shall provide a detailed schedule for construction activities, and shall plan critical phases of construction around, and in flexibility G with local weather forecasts Ideally the recommended phasing would begin with complete construction and stabilization of the SITE — SPECIFIC CONSTRUCTION SEQUENCE FOR EROSION CONTROL 1. CONTRACTOR shag nnotify City of Durham Engineering Department (Stomtwater section) prior to construction. SLOPE & CHANNEL STABIUZA11ON LININGS -- LEGEND 2. Install construction entrance at existing roadway. in or individual tree removal as necessary for construction. Do not exceed limits of construction as indicated. 3. Begin clearing &grub g o ry o0 5-75 dR EdlAL :, Call before you digi Orange tree rotection �fie'ncin is also encouraged along the clearing limits of this pro PR07ECi101'1 9 P 9 ►aged 9 9 project 4. Install sift fence sift fiernce outlets, and an other perimeter devices r Ian, plus an additional measures as may be necessary for N CTIONi W/ 1INAL . Y Pe per P P Y Y rY SEEDING CONTRACTOR`s opereibions, to prevent sedimentation downstream. Seed any disturbed areas with temporary seeding as may be required. 5. Begin rough grading ;and earthwork operations, bringing earth material to proper grades and maintaining drainage pattems in general conformance with the proposed grades. FINAL DRA WING m FOR 6. IMPORTANT: The staging/phasing of this projects operations are sensitive to local weather and storm events, and it is anticipated some bypass pumping may be. required for normal stream flow and even small storm events. CONTRACTOR shall submit a detailed construction .° � . X11 schedule of proposed operations and discuss contingency plans for larger storm events (ref_ Special Erosion Note 2 this sheet). .............................. ` ' ' ' ' ' SLOPE 11 E: VIEW PURPOSES ONLY 7. During grading, check all all erosion control measures at least once per week and after every rainfall event Place temporary seeding in .............................. . .IN COfMA�CTION W denuded areas as requiured. .......................+%... ° ° ° ° ° • ° • (OT RELEASED FOR ST CTION) � 8. Complete rough and .fine grading operations to required grades, maintaining surface drainage patterns as shown on plans, or on specific AW ---------------- p I grading plans, as applicable. COQ new channel; then coordinating the re- direction stream flow to the new channel and sealing/backfilling the existing culvert inlets - - '- Q & outlets. However, alternative and other creative sequencing is allowable as long as the City's stabilization requirements on g. Construct any final storm drainage devices (�e. rip rap dissipators). PROPER1rY R� Q�' the new channel are met. 10. Seed any remaining ,disturbed areas with PERMANENT seeding (ref, Special Erosion Note 3 this sheet). Install any erosion control 3. FINAL/PEt2MANENT SEEDING: See Erosion Control detailslspecifications for all finallperm. grass matting (that hasn't already been installed) where indicated on this Plan. Coordinate with OWNER and /or ENGINEER N other areas (esp_ fill SCALE types fbr this site. Provide for complete scarifying of previous temporary seeded areas and re- seeding with permanent slopes and ditches) might require erosion control matting due to evidence of erosion or upcoming weather patterns. GRAPHIC seed (unless overseeding will allow for the desired stand of permffinal grass). Coordinate with ENGINEER regarding final seeding mb(. Coordinate with OWNER if sodding specific areas may be a desirable altemative to seeding. 11. Remove any remainoing temporary erosion measures AFTER upstream seeded areas are established and stabilized. Grade, shape, and r, 20 o to 20 ,o seed all disturbed areas where devices are removed. Any remaining permanent erosibn devio�(ifny) shouk}'now be installed, i r 4. PRICING ALLOWANCE for EROSION MATTING: CONTRACTOR shall include a separate pricing allowance for 2500 sq. ft. ! SRI �� \ � Ji _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ ____ _ - - - - - - -- - - - - - - - - - .___ (275 sq. yds) of temporary erosion control matting, North American Green S75 or equal, for any additional areas as needed. / , t _ - �- _, w.__ _.___,_ _ - -- -__ -. --"T--- �r ,_________ 1 inch 0 ft. - - -- -- -1c -- _- --- -- - -- - _ ____ _ _ - -- r - QJlr -, °_. - - -_ I/ --`__ -_ I1 _._ -_- -- -__ __- ----- -- - - -- 11 - --- _ 11 - - - - -- SSMC _.- _ --__- - - -- -- - -....._. 111111 -- - -- _ -_ I I _ — - - - SS \�,ti}i1 ,,.r,,.r� Jr Jrl - - - -- --- - -' - -- 11 - _ -- -- - - - - -- - - - - -- - ___. rr '!! - - - - -- __ -- _ _ -_ w__ �_ _._ - - - -- -- C E STREET j' - -- - � - - -- - - - - - - - - -- - - - & GUTTER - - - -_ __-- - - - - -- 1" __ _ - -L,l 2 ___ - ASPHALT w /CURB -. __.__ _ _ - - - - -- - -- --------------------------------------------- = -- - - -- -r7 _,�_ 1 ___ _- r, 90' RIW 11 _ --- - -_ - - -- _- _ Mh °- - - - - -- - _ __ - - - - -- -- - - -- -- - ST _ _ ,_ - �- _ - -- -_- ORM _ ® - - _ —_— _ __ PR rr r RM -- -- _ Eka _< -- ai - -- - -- - ___ -- ( 11 OPERTY/ - - -_ - — — — — - _ _ _ , - ---- - -- - - - _ - - - - - - _ \ - TEMPORARY-DAM 0 SEPARATE NEW �,, `_= to 2 r r - - - _ - - _ - - - - - ` /" - - - - - - ` - - - -- STRFAM+IO- REMOVE AFTER _ 1 ` - - r r - _ - RIP SIN DISSIPATOR - -- - - -- - - - - -- _ -- - - - _ - - _ - _ .- ` K - -- __ DOWNSTREAM CHANNEL IS STABLIL12fD `' / - - - FER �1 _ - ° -- - _ - -- - - '� r , , WAS_ _ __ `" AND READY TO ACCEPT STREAM FLOW. , .{ - _ --- - - -- -- - - X S - - _. _ - -- -- - � ;` `` ,.-_. � = o -onpc ° oo -�t3 RlPI�RIAN BUF � - �Sj•,e = _ _ ( !( AT IP'I�CT`�ET � ( - - - - � oa ° o o 0 0 - 1 _ - XJJ T 0/{ J / E -- - - _. _- - _ OR - - o0 0° o °o 0 - - _ ,._.. -.,: :. bppbb p pbbo boo°o°o _ WG Q�?S ! \ :.- :? ' ::c ... : : : : % : :` -ci := i : : : :i :.a'i;=: ;= :; := ? : :i :r :`- :r : : :• °_. , :' 0 00 0 ° by op - f}II, OSiQN CONTROL THIS SHEET' - ti _ ' ' 0 0 0 USE CL. 1 RIP - 26° THICK - -- _- - - E �. X - ._.,� . -,. o o - _ ::. : -' F: : : % : : :.i :..' : : : :i : :i : : :. : : : : : :- i..:.. _.:.:.::.:. ; ° : : : : : °i: ;:. i::::•: := . :.; : : :i.;i :; : : : :;i.c :.,. :. :: ° °p °b0 O ° ° ° _ - -- r t - - - -- op `'. ' _- wtFILTERFABRiC ^� 1 �iV '; -' : : :. ,. - .•..•..•.:.-.--*:::•::,;:Z-_'.::::•--._.-: r : :; :; :.;i :;i• : :.; :.;.� :; : =Yi : :. i= :::;�: :: ° :,.' -.: . o ° ° o o °po - - - -- - -\% :.•::::::::•::: :: , _ ,.•... , . :•.. _ . SEE DETAIL __ __--_�. 11 0 144 ::.;...;..•..•.. -..... ° ° - 1( 11 11 I ° . . - . l �iti P. ACCESS ^:.;:..,.: ... . . :. ". -- : : = :...: 'S::- % ; :%: t -... �Ne °•oo oe a °ee� ° _ TRANSfiiON REGION TO NEW •� _v -' -.-- -__'. - - - --- _. ._. .. :.' :; : {• : : ° : :; : :° :;;: }:; "•':C : : :' :.'j.j } :;: ; {-:: "_" ' ,'./_e. : :.f :': is {•: :'.- :; : ?::'::j:.;..;°....... . • • . oe oeOO•°000 °se °Poe °ee•e a -, 11, TYPICAL CHANNEL SECTION -- - ..� , :'' "' : :., :. : :. : :._ . : :_ :,:.: : °- :., :.. .°ee - - _,_... _ -_,.- -- _- __ _ _ -- _ ,. e.'. -, -• °- ....,.. .•. ".- °. -• r.•: ? ;:.•: • ee °;•,°p•�o•e. .e° .e°pg - - -- ,.•,..,._,. ,. '.. s e .. ra . . a , .... .. : `epe °eoe °•e� °e•a °aee°•.a° . ` / _. ._.. : :; :.;;,; : < :,:- :,-::- >• :.; :: °C._: :-.- : : :;:.::_;:.; :.: :ri,. .1. °pq'•e .°ee •oe e. �7 ,.\i _. - - (LOOKING DOWNSTREAM) :. - :.. ...- ..•..•., . °... -.-.: ..: eo$ . e. •o - _ __ . - USE CL °B RTP RAP x-18° TH " :a. :.. °• '- :' ' = '==''' •.- wIFIL-TER- FABRIC_ _ .LL - ;..•. - CHANNEL SECAON DETAIL --: -: : : :. : :. : :. : :. : :: _ : : > :• : :7 : :; :_ =. -• ..... h :�- .......... ?., .,c.=::- : : : : :;; :; : :;- •;• : :; :. :: •:.••. •°••e e - % - -. _. _° - ! ,. .• - , ..,.,`..... :..,. ae•e °;°- ..°,e„ °e °•. - -- -- - - -_ _. �/) T 1..Jf ! l./7 ! - _.....- ... _... .. '•• :. -° .•••, •'_. •. _ TV.1� ° °e a °OO°•a so• ae e p bOp p0 b - - .._. .. : -. .. .•.. •: ..:..:..:.:.. ...... . e •e eee$eee ace °o° .eo°ve • O p O °O O -- _.__..._ .. _ s _.__ --- . - - _. _... _ ,.. °..•. - :- .- .- .- . -°.• .. ,. -. ,. ,• .• . -: . a. •. ;. "` '` - ' -. a °Oe°°o•e eea°oeo•ee e° •.e°°•se °•oo ° °e oo°e° °O 00 O OOpp .._. -__ -_ F-------:::::--- -. 11 e e o = -. - - .,.,.-- . ..- .- ..... :.- :- • :.;.. .. - . -- - - °_., :_.;,.• .; , •°e 000eo °OOw °O;°w�OO•e o� °ooh °oo oe _ _ _.. - . - . _. .•.- .. • .. • • - " _'` "- "`' -%" •_ ` • • • • • s ... ... s s ka • O O O °O °00" °00000 °Op OO..p - bO�o00p°O° _ _ - -,_. .. - _. - - .._. • •' ••' °••• °•• ...° .• .•• -.- . , -. ... .• - ••.... •• • ....• . e-a.. O °O °p0 °00 °p °OO Opp O °O °000p00 °OO - - `- _ -__.. ._- . -__ -- .____ ._ __ _ '- .......- _ _._ -_. - _._. _. .. ..a..... �•••, •.• ..•s..f.s:` °O °p ° o °Opt °O °Os- o._ -°Op Op0° - - - '- .;:,; :.; : :. :. :.; :. .•.....•..; . -, -..- .. • -. - ...- -.. -.. ... s:..:a s- ,.......... ri... y O p0 Op O Op O - -. __ -. _..__ ..__ -_ ._- - __.. _. •'•:i:: :. e-.. ... a's •.. ..s s Op 00 O °O 00° O O ° p0 : - :: _ ._. - _ . -. - „II.... . . : <a a,.. a... .. .. pbOpbp op ° °p ° °o 00 0 °o °o :Fa•' _ _ - •:,.:: ^ -. - .;-,.. :, -- ... ..., �..�.. ._.. h: .... ...r,. .e o :: : _ - .- ..•..• a.. q. 7..: a:.y.. _ - ... . p o O - ..... 0 0 ' _ - ;. - :- _ , - . ........ a ...'. ,....' - ... , - - --- a a . 7 •..v - - . t ...s .....v. x .. .. .-a. .,. •- y. - f __- .__ -_ _-. - ... ....... .... ....,..• - ” .. .,•.. ....•.. . jai. a .a•ra�..,.......a......ia...... :` : :i :cr:: -L- '' : :".''. \ , . f _aiaa a..a .; ....... •.a. : :� % : :. : : ° :•: i::': t• : :- :. ^ ° : : ° :•: - - _..!. •. _ . ... .. ... ... .. .. ... .. v . .. • •• •i1,as. .•. ✓ � s,saa area •J'• .. -. -. .. .. .. -, . .. .. -... .., _. .. _. J- ! /. -.• -_ •a.l• el.ts 'i ............... 'a. a..i §_t., - \`` .\i�\ . . . - _. _ . / %,per - : :: i x.; .%�'.. _ ✓' \\ ::j: I IPAT R _� . LEVEL RIP RAP D SS O ,.. - :• - / :.-': - AT EXIST CHANNEL OUTLET - _ <: \ /' o••.• : I. :'f" . - - �. -1 W -7. / _ I ;: := � ?� USE CL. '1 RIP RAP 2G TH CK : =a: i ,: "I I :Y. %. / J \T ' f . w TER FABRIC a _ f : %Q: ti e:� /FIL l•' ,: • .s , r _. - .. • .: •:: •::: •- • :.' :: ... Ski- : •. °. .� :; :' '_'E DETAIL a. - =�: - .e : :: _:::::::.::. �\ CHANNEL SLOPE ADDITIONAL AREA FOR C � ,,. l c� UILDUP (HATCHED) �... -.. — 0 \ s-.. -: .- .• Y. �g :: / RIP RAP ARMOUR ALONG .. :: : (USINGGOOD COMPACTABLE MA ` , c :. : :. : :. :,: ::. `.......... •x °.:.,' • : :•. :.; .° :- : :.; :- : :.;;- FO - , :_.:- , :•• :••. -• • ? . ! .: !\ CHANNEL SLOPE c\ AS AVAILABL FROM ONSITE) :' '' % : ::.; :�. :. :.. - :. -: •:.x.:: .'r ::'=' \ e \ 11 r.:....-:; • : :.. :. : :•' :• :.• :.- :.° :.• :,. :.. ! TOP ELEV = 330.0' MIN O a / : -a• :- \ AIL N AOIH DETAIL RIP - :::::; :,; ,,;,,;,,; ,, SEE CHANNEL �_; : :- , _.__, / ! • i � -:• � / USE CL °1 R RAP - 26" THICK � \ 11 ! / / O / /. / / \ / \ ' ;' ! ,. `;_/ ,- w1FILTER FABRIC • :'7 a 1 ?• f/, I f PERMANENT SLOPE LINING - TYPICAL FOR PROPO S ED GRADING SLOPES AL 5 / TO OR STEEPER THAN 21) / SEE SLOPE Ar CHANNEL UNING LEGEND THIS SHEET \ d 11.. I .. I 1 I,.-. 41 Iliil I 1� 1 . 1 . t f . I 1 \' ��.1( 1 ? \ \\ Jgi t.t i t , q r , r ' (G' :i- 1.°tf�•;` '; is �Y':r: -.a :_:i.: : \ TEMP. SILT FENCING t \ \ \ \ : : : :� \ Q . : : :` : :':` . :;`r;:: 13 \ 1 :>r 0 \ -:.: Q n V �'- \ Q : \, SILT FENCE O ) 1 % \ � `:': . \� O ` :': O . - -. . / \ \ � 11 \ \ \ \ � T F r P , t1 K_ O. BA - _ 1. . _ D _ :: �r l T A 2 S l \ TE MP. STRAW WATTLES IN _ NEW CHANNEL SECTION Cam OF ' I I TEMP. SILT FENCING (TYP) I INSTALL THIS SECTION OF SILT FENCE IMMEDIATELY AFTER CONSIRUC7701V OF FILL MATERIAL ..... O 4! 7!i/ // / rl.rrrr "A / / .. X � . 40 ! r l t;'i l 1 la 1;1.1 c i • / � / O / �J / v / 1 0 / / J' r • -/ V .;:.. Q J v / 5 / / / G P / /"' JJ ' r / ! L!i / C0 `�- / / r ♦ v / G / • / r' O / t V / J /� i f C %,PV 'V4/'/ � / / r (Ii t' / /� \/! .. / r �/ Y• y ,V /! V 0s!!! v\ /Q �, &/ / C Qq ; /J Q yy, / `41- /1\ �// / C G, / /0 /, i.r.i r i r1'r1 rl 11 r.r.r, ' f\`/ / �''\ / �r : :Y` I p tat d1d:d,%',1 I.I I'I'I r 1 S 1;'1.1.1.1 i -i I I; 1 j.).�J ! / 'V \�'}/ !' / `Cl ` f "� F , \! /O ! / / !\ _ / / ., t, / ..a. ,a .... - / / - -- / / I -1 ` :: y _ '' _ / _'..,. ::. , / a �/,�. _ / -, :- ::.. ... : .. .. :• , -/ .. : : : :: / ..... ' i ! ., y! ✓ / / �' 1 } / , .� r' / t /'. r ,�. { x r / \\• ! ! - �- SEAL OFF EXISTING CMP PIPES BY 1 !C ! I t / MECHANICALLY CRUSHING E OUTLET J / etc:- %• : :•: % ° : :• 1 :•• , '.r:.•'. T 7---T-- SECTIONS AND SEALING OFF WITH . . . -,- ...• ._ -- / �. f . _ IN KFILL PER ;::e; : :- ; :. • REINFORCED CONCRETE BAC ,�.• t.•: :: r' / :: I GRAD NG PLAN. :1: r SEE DETAIL w ::� : .. , :� :: . ::� :: :r:- - / .r' / : %' r:: i=: i:. asr:::`. :is• :� : : :r :- :i'_•' :- _::;, : : : : :a sic.': r :i : :_ :- ,- *- : :i: : :^ :: : : :i :; : :,: / / / l l % / \ / \ \ \ / 1-1 SEAL OFF EXISTING CMP PIPES BY / CLEAN - CUTTING PIPES AND MECHANICALLY / RUSHING THE IN Ti C LET SECTIONS AND O SEALING OFF WITH REINFORCED CONCRETE. BACKFILL PER GRADING PLAN / SEE DETAIL / // TEMPORARY SLOPE LINING - TYPICAL FOR PROPOSED GRADING SLOPES FLATTER THAN 2:1) SEE SLOPE & CHANNEL LINING TiE INTO LEGEND THIS SHEET EXISTING FlU INCLUDE IN PRICING AN ALLOWANCE FOR SLOPE 2500 SQ.FT. OFADDiT70NAL TEMPORARY LINING FOR EXISTING SLOPES DISTURBED BY EQUIPMENT OR OTHER MINOR GRADING \. EXIST FILL SLOPE _ \,\ SCHEMATIC APPROX t ) SEE PLAN 'OF CONTOURS " ''y SF F N 4 N O N c S ,7 4' 1 4.5' 3' NORMAL STREAM FLOW 4.5' 1 4° N G G. __ 140, , N vy� M 2 O )F N c 1� TEMP LINING TEA P U N IN G P r E `:1 7 SEE NOTE 2 6 SEE - 1 NEW STREAM CH ANNEL - TYPICAL SEC I ON NO SCALE (LOOKING DOWNSTREAM) NOTES: 1. Construct slope of new stream channel according to specified grams or proposed contours when indicated or the plans. 2. Erosion Control in New Channel: Seed channel slopes with appropriate seasonal seeding ma, and use permanent or temporary channel slope lining as indicated above. See plan view and Channel & Slope Lining Legend for more details regarding fining types. The center section of the channel for normal stream flow shall be seeded with seasonal temporary seeding and mulched. (After normal stream flow is allowed to enter the new duarmel, the grassed center sou will naturalize over time into a typical stream bed). The new channel and slopes shall be stabilized with an established stand 3. The compacted fill on the right side of channel (looking downstream) shall be with suitable material "as avaaBable" from onsite excavations. If onsite excavation produces unsuitable material for compacting, then stockpile materiel in areas as indicated or the grading plan. FOR PRICING: INCLUDE AN ALLOWANCE OR ALTERNATE PRICING UNDER 6- SEE NOTE 3 G 7 2 M P N O � <s E -SE `tN , i 3• • 0 14 -.N.- W a x W 2C a --EXIST GROUND scHEMAnc APPROx ( / ) O — I_ M X O 0 SEE PLAN CONTOURS p W W W F R_ Z F A P� ® 0 Z" i 0 = F- << O F_- rn to cars I'® SC J J W - M 0= L_ cc Z o a 11111N.;O W 2 - LU V A LU �1- W Z 111111a cc 000- Z o CL ® o J CJ Z Sheet No. Ob or of (H Z W N ® o I Naft W'"� a z x o � Imp wy°°= J BUILD UP CHANNt1 SEC11 oN MATN COMPACTED FILL USING SUITABLE MATERIAL FROM ONSITE EXCAVATION W R W cc Z SEE NOTE 3 O 740 NE VIN O LU t1 E N c N ' -� 0 �`ia! x Z a x W 2C a --EXIST GROUND scHEMAnc APPROx ( / ) O — I_ O p SEE PLAN CONTOURS z Z R_ - O �1,4 ® ® LL tit tit = Z << O F_- rn to cars I'® SC v Z Z 4 OV VO C6 O Z o (XZz 000- I­- U CJ Z Sheet No. Ob or of FILTER OF 1 INCH DIAMETER ° $ ° 0 °° ° Table 6.62b Specifications For Sediment Fence Fabric � 57 WASHED STONE-----_,,, - _c � ° °�' '� g M7 Temporary Silt Fence Material Property Requirements {•'i .. a ,. TPsI Material Units ";ill Fence sift F�,,, value • • •.• U:••'•i• •'••••• . / ._ • Vii, : -.• '•• i i ._. If •% .sir +H s•�r•a•�r ..; ,,. .. ,,-- _ - = --r = _____ -z:r. ��., u�.=.r • ___ __.L�_____._ -.. viiiiiii . ♦'r• fI -.•rte 1 • ,• •.••S.♦1• • • , q ••S•Y• �.• ifn•.•..•••• • • •Y•,..•_.•.•• •.•_�: jai ;ra /���r•��!i•1.•is� +t �IN•.fi i�•�•'li ': r; 1 • US Ill 130) P. �•a /•• ♦ ♦.. rN �■ • •-�'.r•'tir' /ice �••f •� /• I�t t .r�:> 1) • d ` ...•: .. .• .•.rte/ /it••► .•''• /••!ate • 70% after 7WA. after Strem 6"Inin Silt Foricemiliport shan consist of 14 gage steel wire with a mesh spai -,h of 150 min 16 ink ii or prr.(atvic4" poyloilit, mi of Thii defixtrif vakm ate based on empirical evitience wait a variety of sediment. I'm environmentally sen�ofive arli a leview of zllmlous experairtre andlor qije or reqkrtAy specific n-potextile tests In accordance with Test Ailledisod 0 5141 tie r-formed As measured in accordance vMh 7li Mellaod • • • •• • • • • •• CONSTRUCTION Figure ai Graltiol entranosAnt keW -"dirnflint *0111 W-bV it- C--Xd- site (modified *w Va SWCC)- '1 •'1. - (I • - synthetic filter fabric,. 2. Ensure that the height or the seditwit fence dcvs tall. cli 24 inches IVEHEME [■` rvv,.•• r•.•....... ••••'•'•' • •.••••v••. v..'1 'i '. •..�JOJJJ •� u����r•�I -a ���.1....... .._...�...._:�:••y'�.d•'JJ V ••• ♦'P�JJA• ••♦ •JJJJ• •••• ••••• • •1• 6 •r-' �! -' i! � - r001►i •! • ••i =•i•Ji`i`i`i`ii`i•J i i i i Oi ri•JJii0•i•JJii iiiii ii`i`JOi`i 4•ii•Ji`i`i� �i'r00`i`JJJJOiii� i 'All 40 =ri0 > • � ri!i! ]�� *�S i':E iii: i i!•.r!. •!!•.•!1 i`iii0`i Oi4 +. • • OJi i •. _ • • • • Jiii�`J •Ji � • ••i Oi`Oi`iO•ii.0i`Ji ♦Oi Oi`i`Oi`i`i � �`i J: �i O• • •i!i!i! 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OA - ♦Ji••J•i•J•••••J••..1'J •••. •. •i •.••. •..••• .M .. M .a..._.. -ille of tlw trenich- Fasten the wire reinrareemem, [ben Iabfic on tile upslope / I���illI _••...• -ro•• ee�i.r •y `A40 "`• �!..4! .OJ �i••••J •OLL`• i.0:0` :�'J.O`•O r•.•♦ ♦• ••• i= •♦ • ri • •. i u "' =- �1••s ♦,• '_ •..Oi•JJ.i•JJJJiii Ji• =::. ?a• _r �!n .u�m�•' w • 1 l' 1 .i , .,� 1 •.i .II_ 1 11 nl • 11 /'- 1 1 . ... r•••••••..•.••••••••• eal ......=-.-:1•- •`-�.ve- =.'•rxl!- •i rre• /!ego. -o ... > -,Ja 111- III -�II�I I.. '.';�'i °iri i °i000••i`i` Oil. iO•`•`• OO• JJPO♦•=• di' 1' +�J•`•'•. +o.),n...1 =•e•:V�: =1 °a +1= °a•.ire- iris• -d"' Ic :.la �' - . .ILC.0 11 t: = i • _'i s•Ji`i`J •O`JJJJJii � •i� r0 � JJJ •4• iii •Oi °i`i`i•JJJJiiii`i`iar.Pe, -1: e -. • e = ° c.`�g.:5': i i, • 1 I- ♦. -.Ip, ;a Dii`ii0 •O•OOOJJ.'i OJJ.'Jiiiiii• •i•Oiiii•••ii`JJJJOi geail: • ile il,.,,i }e:...�.a:3 1 . 1 `II �IIL"•lll k.,. •;; : ;, :iC.IIE.�.illEl. .,. ..._ �•i`JJii0`i`ii`i`i`ii`i:• iii• i4iiii•• Oiii•• iiiiii` iiiii0• i� .!:d'r�.ti!S- :!i!':�i ;i.: �:"d"•!' .,.. i,.:.i... Ca.. ! -v, - rr. !!II�,II�:II L�:II L. -. • .. ;? 1:. .. :. ;:16�111�11:�1!.j. ..- ....• -I. I. i..... r- a•. wa•...•- w•-. w.•. w•- c• i- ee•... aae•! i.•.•.•. Ji- •- w•.•- w••.•.•w...w•,. -.._.. apart, Support postsishould be driven securely into tlw ground a millimunri of �QI P'll�G -11 Il Il�i1�11�L10 11�n�i1� i� ( �n�i w • [I - I� -11 -II ��1� . • .. .. - - - - 24 inches. - • rl'. _�.: -. -,. " ♦, 1 I' 1. i' '.11 H. :.1! 11 i 1 i. •, '.1 , 4 - - ./: "•1 -v It\ r Y 1 Ilr. il. �1 1 / 1, it 11: �� II i -I% filter fabric directly to posm NVIre or ,'1 •Ir : i I r `.1'_ i il•' :1 II M"77- • ' / - •,. •, • zip `1 W. i II r / • • •• • • , / • • • • r f 1 r the proposed line (it is laid upqlope from the baryiet (F iV tire 6.6- 8. Place I inche, of the tithinvaloing the tiottomand side of the irclach, 9. critical it I SEDIMENT • •► -ill (If excavating I Ini placing fi bric arxil then backbiting Irench, Instei inserts the fabric inloa ctit sliccd ill the giroturd with a disc Wiyttry 6.62b). Construction ^, .. • • • •• • In, -its -et allari in critical areas and 0 feet apart on stwidard 4. Compacted • 1 of the dike is not, lower at a" point than Lhedmigne.1tei as cli�c its possible tit tire liall-inc. criabling Posts to support tile fabric firi VIOW 4. Provide siffficient wom around divicrNiclas Do permit nutchinc regrading and 4- Install livirsis will) file nipples racilli initin the silt fabric. 18 min "110 NOT 5. Attach the labric to ii pi with (lace iiii allspaced within the top 8 PREL IMINA R Y L) inches cifthe fliNic. Attach Ii tic diagonally 45 dcgret,- through the fabric. with cach Planclutie'll least I inch verticallyapari. Ako. each lie should lic S. Vegei the ridge inuffictrutally after construction. unlen it will I'Main M positioni to hang ona p(rst nipple when tightened to prevent saggaig typical placie less than 30 working days. USE FOR CONS 770-8?6 U- C- TION 6. Wrap approximately 6 itichL--; of rabiic anwad i1r, end poskand'WICIllic Figure 6.2an Temporary cairthen diversion dike. Maintenance Impleat wrriptIrary divienions once a week. and! after every rainfalL Immediate- (PROGRESS DRA WING ONL Y) 7. M, more than 24 inchi isf a 3 116 inch fithric k allowed abm--e gri-bund ly -tirlovesediment. firona the flow awn and mpoir tie diversion ridge. Careful- level. ly itfieck outlets and make dawly tepairs as neefflei When the area pruiiec:wd is Ali •' d .. .' remove 1 1 and YI 1 ,1 with Lie Mh 9. Conapactittial is vitally important for effective results. Compact she soil tipsircam side first. and then cachside tivice fiir a total vf4 brity, is • Itl f I INSTALLATION •.,, E.,. 1 •• • r I P 4 designed .1 o l 1 i I Y.•'1 :, P 1 it installed •,•!. 1 ✓, •' „ �[ ` •,.. J •. / 1 i 'Y. I :._.,• illustrated it , form rX, Us NIS v.. Y • �♦ . • iii :.... -� �,. I .+- .�I`.: I ; .. .. .. .f``fL.�!•� ? /I -.� rim �i .'iJ•.hJ: J•i:T,,ld: ijr.�..__ � �- �. �. �: �( . /�• �' ,:.SSSi •ij.:. yi • •• • •= : •... s/" � +. •� r . �. _ s ,a�. � _ � ,.� w 1�- �� I� %`� i • •:.. (C v . ,1 '�-i ' -�� ? :__,•: •♦•••tq♦ • ♦.♦00 ..,i Yrr "'.lwi'� ♦i ur� �� � --�-_ �'' �' � / / / / -fi � �iiii /it1� i ♦�1 ♦ ♦♦i �i ♦�rq�•�•:i•1 Ei: : rr.::�'r' iii /j /� + %r� % %jr�.a• '1'.V ►r >/ Q .viii oi•�i•si••iii a+� ••�•ii�: r�� sii.....,..... ir��/; • �i'i i /rs. %�i ., G���•%�•, �: • .- /L=I!vL'� /=� /. �.i i r i > `• `' ` `• ` '` `' UJ . ��:: i�11itlliriiO�;. �i, frj► i�i�: �>iiiis:iii:� %if����� / % %�ia°ili ���1�� :,'� �� ��t�I`Iw.Ii.i♦,rf��f�� ...��4 ♦ 4 ♦ i i ♦ ♦d ♦ riw:••iw.•,•Na•r% ff /i• // // �• / /-� /•. ,••.Ii!.. `,` / - ♦••.♦ ♦j1, ♦i1 ♦'�i +i ♦L •rssirr�ru,•a,l••. f • a� t / �...- I r./ � • i �iit �, ��•♦ y. ��♦ ��• ���s'++ �t a�+ ii�gi• �s,.. � •ri••,.r.� /r�*i� /iri/i��lr''•�' �:��•��-��-�� ::,�� � �� Q : ���.`' �i��• .�i«+ii���' *��i'•j�it•;'i'�:':� ; ::'?::iii�i,;isy.i�f�i�� .•. i�. /`�;- �-'fi-'j �..♦ iii i 1�i ♦ +1 ♦ ♦ ♦ �, ♦iii =t II•I/la• I / f / /'/ / ..� / �- ♦ f��, �• i r�` ` iii ��~+ �' ���' r. I` o+ 1�����a�� *�'.►���Jj+��"•�:>::::i:�i'`fi� i',��r %ii %�iu•: � / /��' /��.i�•1� Q ,' � �' • • ♦'•'4 •1 "•1'/� i1 /I f •1�f :Atai�t.•uf..nljlr� /f / / / /A //� %-/ .. •., �® `� --:. •.. ►:, / / . - .: •. • ' •j•I /•4r•Ir•1♦ +♦��Itf1•i �ti is�ertrs•ir•;/ si /// f % % /// �J:1 !�• ...' TWO s • r•��t�+1r +f�1��1♦ r�ra�ii�:::iiiai`i'` % %/ii% / %S/ - / /Q� /``��`` %`` i��:�\'Q ��� / / ��1�� • ♦ rf •�1 +•+l4flj'F• +s�i�ssiir�•N %f�f /r %� /.' W /�`� �/ i�' '; (� �I ����•y f , In channels, rollout strips of nefting parallel to the direction of flow and over the protective mulch. fix •f�•♦••��i•�1•f•• Q .. • � r ► o-• , 1 tiaal 1r �i�,r��.• ly /'�,f�r ♦.�.���► +����.,r,'•'' _..• ;,,a... r. «a • tiaar r• .• �aa/ / li I ! / R 4444 ♦•►4� ����►��► �, i.i �� �, l . +►44 4i� +4�+l�►�► : r r • •, « - a t « • h 1 a a r /: a «' .... • 1 « , • • • • " • ' i 1 1 • Lui Anchor r�►,�•1i �� : • • •, a « : t «•. r « a• tiaat • «• a/ • r r 1 a 1 « •.• • •, .. • „.« r r •'aa+ ' 1 •, a1 r " y w - r a- • _ • at • • • . •- a. ate. •• : «ar ... • a / « • �' �' I 7 1 ,��� h- • ,� 1 • - i • 1 1 • • I 1 • 1 .nr •• • •' • Ia 1 • •ar Overlap Join strips by anchoring Figure &14a Installation of netting and inatting (modified from Va. r. ►• a. a. •a. •�,•, / hr1 ••.r r • ••-.at r• «•-ria... 1 • -•. a'r •• 1 •• � 1 1 • 1 •• '•' i • •' • • •_ • � • r ► r overlapping. =.cr • >+r sal./ r s: al • '� r• •. • .1 . ••>+ :, • r-ia/ .• •: -, a la. ..._• I. a f « « ••^ • • :• • i I • '• 1 • • - • •• 1 • .• i •• •. � • • t i / rr r. rr t r...I r.. r..1 , :,1 :..«a •� h• •.':7. ,... 71 ...•• i.. a «,.; h::. I,a..a 1... • •,. .'.• �/ •' • •- r • • •• 1 rra• a1 - / h.; 1 / r • ra a• • > a• a 1 •, a , • • .1 1 / dfiep, cover with soil, and infoup rtn* as shown in Figure 6.14a. Staple tho cel. around 2. Sm laying ft net faim ft top of the channel or slope and unroll it down 0 Z the , grade. Annie, nettling to by 1006dy ou the soil or voullch cover butfridjout Zi IN every 12 inches wzwis the top cod and every 3 it Y - I Y 1 . Y stapled Where 2 ships of act am laid side by sulle, the adjacent edges should be n • c1 H • ., should also \� . • • a ha. • • � a r•r ' a' • • • • 1 • • • - - - - .: a .1 1 , r r , applying .. h i.•,. ' . • .. • . a.1 M • -., 4. 1 '1• i -M - u• r. 1• r - - - r+ r• --ri. • 11• in 1 1 11 1 vl of tl • JI tile cnd Of ft prerviOUS roll I li hitches, as sima in lFiguire 6-14a, and stapic -cry 12 inches jm below the anchor slot • •.i •ii 1, :.,1 >:i .. !,[ �R. ' � •1 � :...: 1 !c `' I DETAILS EROSIONJ