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HomeMy WebLinkAbout20190189 Ver 1_C4.0 Master Grading & Storm Plan-Layout1_20190529DEVELOPMENT DATA OWNER/DEVELOPER: LANCE ROAD HOLDINGS, LLC TOP OF BANK 10 WOODBERRY LANE STREAM BUFFER ASHEVILLE, NORTH CAROLINA 28806 CONTACT: VLADIMIR GREBENUYK STORM DRAINAGE PIPE (864)357-6780 CIVIL ENGINEER: ADVANTAGE CIVIL ENGINEERING, P.A. PROPOSED CONTOURS PROPOSED 340 BIG BEAR TRAIL SIDE ASHEVILLE, NORTH CAROLINA 28805 CONTACT: MIKE LOVOY, P.E. DISTURBED AREA (828)545-5393 SURVEYOR: ASSOCIATED LAND SURVEYORS & PLANNERS, PC P.O. BOX 578 HORSE SHOE, NORTH CAROLINA 28742 CONTACT: CAMERON BAKER (828)890-3507 GENERAL CONSTRUCTION NOTES NOTES: 1. ALL ROADS SHALL BE CONSTRUCTED TO NCDOT STANDARDS AND SPECIFICATIONS. 2. CONTRACTOR SHALL PROVIDE CONTINUOUS ACCESS ON LANCE ROAD THROUGHOUT CONSTRUCTION. 3. OPEN THROAT INLETS (SEE DETAIL) - TOP ELEVATION IS 12" ABOVE THROAT/WEIR ELEVATION. APPLICATION NOTES: 1. THE APPROXIMATE DATE TO BEGIN PHASE 1 CONSTRUCTION IS SPRING 2019. COMPLETION IS ESTIMATED TO BE SUMMER 2020. PROJECT COMPLETION DATE ESTIMATED TO BE FALL 2023. 2. MULTI -PHASE CONSTRUCTION. 3. THIS IS A RESIDENTIAL DEVELOPMENT. THE PHASE 1 PROJECT CONSIST OF 34 RESIDENTIAL LOTS. REMAINING PROJECT CONSIST OF 54 RESIDENTIAL LOTS (PLEASE REFER TO LOT CALCULATIONS TABLE FOR LOT ACREAGE). 4. MAINTENANCE RESPONSIBILITIES WILL BE UP TO THE INDIVIDUAL LOT OWNERS HOA THAT WILL BE CREATED. STREETS ARE TO BE PRIVATELY OWNED AND MAINTAINED. WATER AND SEWER ARE TO BE PUBLIC. 5. DEVELOPMENT IS NOT A DRASTIC VARIATION HILLSIDE DEVELOPMENT. 6. OPEN SPACE AREAS NOT TO BE DEVELOPED FURTHER. 7. ALL ROADS SHALL BE CONTAINED WITHIN A CORRIDOR THAT SHALL NOT EXCEED 135 FEET IN WIDTH NOR THE CORRIDOR HEIGHT SHALL NOT EXCEED 60 FEET IN HEIGHT. 8. NO BASE COURSE SHALL BE PLACED ON MUCK, PIPE CLAY, ORGANIC MATTER OR OTHER UNSUITABLE MATTER, AND A MINIMUM COMPACTION RATE OF SUBGRADE PRIOR TO PAVING (IF REQUIRED) SHALL NOT BE LESS THAN 95% BY STANDARD PROJECT DATUM NOTES: 1. HORIZONTAL POSITIONAL ARE REFRENCED TO NAD 83 (NSRS 2011) 2. VERTICAL POSITIONS ARE REFERENCED TO NAVD 88 (GEOID 12) PO �O OQ'�f 71 Ic LEGEND 9633-98-0985 TOP OF BANK - - TB - - STREAM BUFFER SB EXISTING SEWER LINE S5 STORM DRAINAGE PIPE EMP (EMPLOYMENT) EXISTING CONTOURS 00 -00- PROPOSED CONTOURS PROPOSED 00 Know what's below. PROPOSED SEGMENTAL PROCTOR METHOD AND CERTIFIED BY A PROFESSIONAL II i) �\ \\ CaII before you dig. BLOCK RETAINING WALL ENGINEER. (DESIGN BY OTHERS) 9. SUBDIVISION IS PROPOSED TO BE A NON -GATED COMMUNITY.+ ��\\ 10. CLEARING/GRUBBING & DEMOLITION SHALL ONLY OCCUR ON A PROPOSED GRAVITY \\\\\\ PHASE 1 PHASE BY PHASE BASIS, BEGINNING WITH THE PHASE 1 LIMITS RETAINING WALL \ \ \\\ (V OF DISTURBANCE. (DESIGN BY OTHERS) \ \ ? d' I V (j PROPOSED GRAVITY RETAINING WALL EXISTING 100 -YEAR Q (V ((/ _ I (DESIGN BY OTHERS) �O ;�;\�\` FLOODPLAIN (TYP) -ZI �/ �' I -__TB - - - _00�� EXISTING AVERY CREEK \ _ PROPOSED SEGMENTAL Tg - - - BLOCK RETAINING WALL (DESIGN BY OTHERS) 1. ALL GRADING, STORM INSTALLATION, AND SOIL EROSION CONTROL MEASURES ON THIS SITE V _\� \ `� X\ C ' -�� �_�� 054 = _ MUST BE AUTHORIZED BY PERMITS ISSUED BY BUNCOMBE COUNTY. SITE WORK SHALL BE - CTp I �; - T IN ACCORDANCE WITH ALL LOCAL, STATE, AND FEDERAL REGULATORY STANDARDS; AND - _ HlLL °RwE RSA ; />NASE _ _ ;! PHASE 1 ��\�\\\\ \ \ �I �\ \ ALL REQUIREMENTS IN THE PROJECT TECHNICAL SPECIFICATIONS. _ \�\\ PROPOSED SEGMENTAL Q \ \ BLOCK RETAINING WALL 2. CONTRACTOR SHALL VERIFY WITH ENGINEER THAT THE REQUIRED GRADING, EROSION PHASE 1 __ ��\\��\���`� - m (DESIGN BY OTHERS) CONTROL, STORM WATER, LAND DISTURBANCE, AND ASSOCIATED NON -GRADING PERMITS EXISTING 30' WIDE HAVE BEEN OBTAINED PRIOR TO BEGINNING CONSTRUCTION. / _ _ _ _ \\\ �, / STREAM BUFFER (TYP) Q _ -_ � \ \• -� � _-\\ \ (-Y)� 3. ALL CONSTRUCTION SHALL BE UNDER THE INSPECTION OF THE ENGINEER, THE OWNER, AND / / - ��� - O PROPOSED PHASE BUNCOMBE COUNTY. THE CONTRACTOR SHALL NOTIFY THE ENGINEER 72 HOURS PRIOR TO \ i - �� p \ I� LINE (TYP) O,Q • '\ BEGINNING WORK. ANY WORK COVERED PRIOR TO ENGINEER'S INSPECTION IS SUBJECT TO - -/ - _ i - - \ \� CQ /9 / \\ \ UNCOVERING AND BACKFILLING AT THE CONTRACTOR'S EXPENSE. 0�IN 4. ALL WORK MUST BE PERFORMED BY A NORTH CAROLINA LICENSED CONTRACTOR. _ ��� A \ \ \ 1 I /� O 5. THE LOCATION OF SOME UTILITIES SHOWN ON THE PLANS HAVE BEEN APPROXIMATED. IT IS 89 92 THE CONTRACTOR'S RESPONSIBILITY TO DETERMINE THE LOCATION OF ALL UNDERGROUND UTILITIES PRIOR TO CONSTRUCTION, AND SHALL NOTIFY THE ENGINEER OF ANY CONFLICTS OR DISCREPANCIES. � 90 91 6. THE CONTRACTOR SHALL PROTECT ALL UNDISTURBED EXISTING SITE FEATURES AND NEWLY I r' W COMPLETED IMPROVEMENTS DURING CONSTRUCTION. ANY DAMAGE INCURRED DURING OR RESULTING FROM CONSTRUCTION ACTIVITY IS THE RESPONSIBILITY OF THE CONTRACTOR �Q i O 1 AND IS TO BE REPAIRED IN ACCORDANCE WITH APPLICABLE STANDARDS OF APPROPRIATE�� _ AGENCIES, AS WELL AS THE PROJECT PLANS AND SPECIFICATIONS, AT THE CONTRACTOR'S z- = 17 EXPENSE. 20 > CUD, \ \ \\� `- / Z d N 7. THE CONTRACTOR SHALL NOTIFY ALL UTILITY COMPANIES AT LEAST 72 HOURS BEFORE Sir `� _ ._c _ m I \ `� / CONSTRUCTION11,48HOUS BEFIVITY IS ORE CONSOTRUCTIONTHE BEGINS.TNOTFOYRTHEALL ENGINOTIFY NC EER AT LEASTNE C72L AT PROPOSED GRAVITY 40 �' - \\\ FLOODPLAIN \ 2p6� _ //I)I 11 \ Q W W HOURS BEFORE STARTING CONSTRUCTION ACTIVITIES. RETAINING (DESIGN BYOTHERS) 41 21 = 18 p 2 \ \ \ ` \ '' Cq co 8. EROSION CONTROL IS A FIELD PERFORMANCE BASED ACTIVITY; AND ADDITIONAL SILT I r m ff'� ` \ 100 -YEAR FLOODPLAIN FENCES, TEMPORARY SEDIMENT BASINS, AND ALL OTHER MEASURES MAY NEED TO BE SHEET 84 C4.2 ADDED IN ADDITION TO THE APPROVED PLAN AS NECESSARY. MEASURES SHOWN CAN AND SHOULD BE ADJUSTED TO ASSURE MAXIMUM PROTECTION. CONTRACTOR SHALL ADD 421 n 22 3 ADDITIONAL MEASURES AS NEEDED IN ENVIRONMENTALLY SENSITIVE AREAS. I I j N m 15 I \ \\ -2060- - \ SHEET C4.4 9. CONTRACTOR IS RESPONSIBLE FOR INSTALLING, MAINTAINING, AND REMOVING ALL NECESSARY EROSION AND SEDIMENTATION CONTROL MEASURES. EXISTING FLOOD WAY LINE ^� 83 CnP 4 ` (BASED ON CROSS SECTIONAL 10. THE CONTRACTOR IS RESPONSIBLE FOR THE COORDINATION AND CONDITION OF ALL UTILITY 43 DATA FROM FEMA) _ SURFACE ACCESS AREAS WHETHER THE CONTRACTOR OR A UTILITY COMPANY PERFORMS PHASE 1 O _ 23 m I 14 THE WORK. - _L .. ---I1-- \ G 11. ALL AREAS OF EXPOSED GROUND SURFACE SHALL BE SEEDED, FERTILIZED AND MULCHED PHASE 2 37 ACCORDING TO THE SPECIFICATIONS AND NOTES IN THE CONSTRUCTION DRAWINGS. SITE IPROPOSED (J I STABILIZATION IS A PERFORMANCE BASED REQUIREMENT, AND THE SITE WILL NOT BE 82 44 G 13 STORMTECH EXISTING 100 -YEAR 1 ACCEPTED UNTIL PERMANENT VEGETATION IS ESTABLISHED TO THE SATISFACTION OF THE SYSTEM -�1 ENGINEER. FLOODPLAIN (TYP) � I A��"� � - c� l \ 36 I r 8 / \ 12. ALL HIGH DENSITY POLYETHYLENE (HDPE) CORRUGATED STORM SEWER DETENTION PIPE �� _ y I 25 '0 '' S \ SHALL BE TYPE "S" HANCOR SURELOK ADSN12 OR APPROVED EQUIVALENT WITH WATER W \`' 45 r < 5- '3712 TIGHT JOINTS MEETING AASHTO M252, M294 OR MP7. ALL HDPE PIPE IS TO BE INSTALLED \ y N m ACCORDINGLY TO THE MANUFACTURER'S SPECIFICATIONS AND IN ACCORDANCE WITH ASTM i \ - N D2321 WITH THE EXCEPTION THAT MINIMUM COVER IN TRAFFIC LOAD AREA SHALL BE 24" 0 35 < % PROPOSED SEGMENTAL \ FOR 4"-48" AND 18" FOR 60". PIPE MATERIAL SHALL MEET THE PRODUCT SPECIFICATIONS 1 J m N 11 BLOCK RETAINING WALL 3 26 - C (DESIGN BY OTHERS), OF ASTM F667 AND SHALL HAVE A SMOOTH WALL INTERIOR. FOR ALL STORM SYSTEMS, _ 1 �-' INSTALLATION MUST BEGIN AT THE LOW POINT OF THE SYSTEM. NOTIFY THE ENGINEER / : ; 46 27 IMMEDIATELY OF ANY VARIANCES FROM EXPECTED CONDITIONS. 80 13. CATCH BASINS, FRAME, GRATES & HOOD SHALL CONFORM TO NCDOT STANDARD DETAIL / 34 /• �� QNPS SN�� 7/ 840.03. DROP INLETS, FRAME & GRATES SHALL CONFORM TO NCDOT 840.16. MANHOLE 0\•' / \ RING AND LID SHALL CONFORM TO NCDOT 840.54. OPEN THROAT CATCH BASINS SHALL 47 :' 3 �s\� �3 ( )r CONFORM TO NCDOT 840.04 OPENING FACING UPSTREAM). MANHOLE RING AND LIDS SHALL BE INSTALLED AT FINISHED GROUND ELEVATION FOR ACCESS TO THE STRUCTURE. 79 ` / (•` �.J` ? S ! \ \ PN / / /� SET ACCESS POINTS ADJACENT TO A STRUCTURE WALL AS TO ALLOW ACCESS TO STEPS. :i% " 10 _ tiiP 14. CONCRETE AND MASONRY SHALL MEET THE REQUIREMENTS OF APPROPRIATE SECTION OF 48 29 28"�� '� / / \ _ I i gS �c, \ NCDOT STANDARD SPECIFICATIONS FOR ROAD AND STRUCTURES (LATEST EDITION). °' - .- - ':`�. 30 ✓ Al-_- r _ o \, r� w _L � CONCRETE SHALL BE CLASS A OR B, 4000 PSI MINIMUM, MEETING THE REQUIREMENTS OF / �� l- - - \1 �j \ * \/ SECTION 900, CONSTRUCTED IN ACCORDANCE WITH SECTION 825. MASONRY SHALL MEET 330000 32 31 i 1 ( +i I _ \ .LL....LL LL. LL `jj'' THE REQUIREMENTS OF SECTION 940, CONSTRUCTED IN ACCORDANCE WITH SECTION 830 SHEET 78 1 - s '- �� 9S AND/OR 834. C4.4 P � . 49 RASE 2 . ...... v 209 L - .^ti,.•i \ ' I \ 15. TRENCH BACKFILL AND COMPACTION TESTING SHALL BE PERFORMED BY A CERTIFIED SOILS LABORATORY UNDER ALL PAVED AREAS. SHE ADJACENT PROPERTY ET C4.5 PHASE 3 ` _ II \I \ - j J �a Ni�c�pRi - DLLs LL -.Now". EXISTING 30' WIDE / - ) 55 d �� q w .1 16. CONTRACTOR IS RESPONSIBLE FOR KEEPING AN ACCURATE LOG OF SITE CONDITIONS IN LINE (TYP) J' � •� 59 pR��F STREAM BUFFER (TYP) ACCORDANCE WITH NPDES PERMIT. MAINTENANCE INSPECTIONS SHALL BE PERFORMED / WEEKLY AND AFTER EACH RAINFALL. ALL REPAIRS NECESSARY SHOULD BE MADE II / 50 p / �/ -n p} 57 60 IMMEDIATELY AND IN STRICT ACCORDANCE WITH BUNCOMBE COUNTY STANDARDS AND NPDES PERMIT. CONTRACTOR SHALL SUPPLY THE ENGINEER WITH RECORD OF DEVIATIONS �I I �. / 53 _54 m z 61 62 FROM PLANS FOR PREPARATION OF FINAL RECORD DRAWINGS. 51 I C7 - 63 � 52 _ 17. ALL SLOPES GREATER THAN 2:1 SLOPE AND OVER 5' IN HEIGHT SHALL BE CERTIFIED BY A\ 76 p0 LICENSED PROFESSIONAL AS REQUIRED BY BUNCOMBE COUNTY.- \ \ \ I ° � �,• ��� � \'_� - ••--- .- .._ -BIG HILL DRIVE > d __ • ,65 �� � � j % % /% j /i i j� > 18. THE CONTRACTOR IS REQUIRED TO OBTAIN AND PROVIDE A COPY OF THE EROSION CONTROL PERMIT FOR ANY OFFSITE BORROW/SPOIL AREA. THE CONTRACTOR MUST PROVIDE A COPY OF THE PERMIT TO BUNCOMBE COUNTY INSPECTOR PRIOR TO I \ -� .. •' •'Y - - 68 s7 ` _ /j -� `� CONSTRUCTION. V '70 s9 A ��' PROPOSED PROPOSED SEGMENTAL 75 : 71 i i \ BLOCK 19. IF BORROW OR WASTE FILL MATERIAL IS GENERATED, AN APPROVED GRADING PERMIT MUST I 1 \ 73 72 RETAINING WALL _ - �/ - - STORMTECH BE SECURED FOR THE BORROW OR WASTE MATERIAL SITE PRIOR TO INITIATION OF ANY N BY OTHERS) LAND DISTURBING ACTIVITY. 20. ALL FILL SLOPES SHALL BE COMPACTED FULL DEPTH TO NOT LESS THAN 95% MAXIMUM DENSITY (STANDARD PROCTOR), SHALL BE PLACED ON A SURFACE CLEAR OF GROWTH AND DEBRIS, AND BE PROPERLY BENCHED AND DRAINED. 21. COMPACTION REPORTS MUST BE PROVIDED TO THE BUNCOMBE COUNTY STORMWATER SERVICES DIVISION INDICATING THAT FILL HAS BEEN COMPACTED TO NOT LESS THAN 95% MAXIMUM DENSITY (STANDARD PROCTOR). 22. ALL FILL MATERIAL (UNLESS A PERMIT FROM NCDENR DIVISION OF WASTE MANAGEMENT TO OPERATE A LANDFILL IS ON FILE FOR THE OFFICIAL SITE) SHALL BE FREE OF ORGANIC OR OTHER DEGRADABLE MATERIALS, MASONRY, CONCRETE AND BRICK SIZES EXCEEDING 12 INCHES, AND ANY MATERIALS WHICH COULD CAUSE THE SITE TO BE REGULATED AS A LANDFILL BY THE STATE OF NORTH CAROLINA. 'Log �..E �� � SYSTEM m rn EXISTING PROPERTY C7 LINE (TYP) Cf1 0) PROPOSED SEGMENTAL BLOCK RETAINING WALL (DESIGN BY OTHERS) PROJECT DATA SF SUBJECT PROPERTY VICINITY MAP (NOT TO SCALE) PIN 9633-98-0985 ADDRESS LEDBETTER ROAD DEED BOOK/PAGE 5628/285 SITE ACREAGE 29.79 ACRES ZONING EMP (EMPLOYMENT) SETBACKS: NOTE: IMPERVIOUS DATA INCLUDES FRONT 20' SIDE 10' REAR 20' DISTURBED AREA 27.75 AC (1,208,790 SF) LENGTH OF ROADS: (ROADS TO BE PUBLICLY OWNED AND MAINTAINED BY THE NCDOT) LANCE ROAD 514.42 LF w Z ROAD A 2789.61 LF ROAD B 976.66 LF ROAD C 1646.41 LF 0 ROAD D 60.00 LF ROAD E 148.00 LF LOT CALCULATIONS MINIMUM LOT SIZE: 5,000 SF (PUBLIC WATER & SEWER) MAXIMUM DWELLING UNITS/ACRE: 12 IMPERVIOUS CALCULATIONS J Q < IMPERVIOUS PERVIOUS PRE -DEVELOPMENT 0.45 ACRES (0.15%) 29.79 ACRES (98.4%) POST -DEVELOPMENT 9.46 ACRES (31%) 20.33 ACRES (69%) NOTE: IMPERVIOUS DATA INCLUDES OFF SITE AREAS SOILS CkD2, CsC, EwD, TaC, FrA, RsA, IoA ' SOIL GROUP B, B/D, A/D, A CURRENT USE WOODED / VACANT NOTES 1. SEE GRADING, EROSION CONTROL, AND STORM DRAINAGE DETAIL SHEETS FOR ALL GENERAL NOTES. CONTRACTOR RESPONSIBLE FOR INCLUSION OF DETAILS SHEETS WITH ALL PLANS. 2. A PORTION OF THIS PROJECT LIES WITHIN THE 100 -YR FEMA FLOODPLAIN PER FEMA FLOOD MAPS 3700963400J & 3700963300K, DATED JANUARY 06, 2010. 3. RETAINING WALLS: ALL RETAINING WALL ELEVATIONS SHOWN ARE FROM TOP OF WALL TO FINISH GRADE ELEVATION. CONTRACTOR SHALL ACCOUNT FOR FOOTER/COVER OVER FOOTER. REFER TO WALL DESIGN FOR FOOTER DESIGN. WALL DESIGN SHALL ALSO ACCOMMODATE STORM PIPE PENETRATIONS PER PLANS. WALL DESIGN SHALL INCLUDE FOOTING DRAIN AND MINIMUM WIDTH OF 12" OF #57 WASHED STONE BEHIND WALL FROM BOTTOM TO TOP OF WALL. ALL RETAINING WALLS PROVIDING A CHANGE OF GRADE OF 30" OR MORE SHALL BE PROTECTED WITH A GUARDRAIL. THE GUARDRAIL SHALL BE 42" MINIMUM IN HEIGHT, AND PREVENT THE PASSAGE OF A 21" SPHERE UNLESS ADJACENT TO A WALKING SURFACE. COORDINATE BARRIER STYLE AND COLOR WITH ARCHITECT AND ENGINEER. SEE SITE PLAN FOR APPROXIMATE LOCATION OF FENCING/BARRIERS. CONTRACTOR SHALL SUBMIT WALL PLANS TO OWNER AND ENGINEER FOR REVIEW PRIOR TO ORDERING MATERIALS. CONTRACTOR SHALL COORDINATE WALL STYLE AND COLOR WITH ARCHITECT AND ENGINEER. CONTRACTOR IS RESPONSIBLE FOR OBTAINING A BUILDING PERMIT FOR ALL RETAINING WALLS PRIOR TO ORDERING MATERIALS OR CONSTRUCTION. CONTRACTOR IS RESPONSIBLE FOR CONSTRUCTING RETAINING WALLS IN ACCORDANCE WITH ALL WALL MANUFACTURERS STANDARDS AND SPECIFICATIONS. ALL RETAINING WALLS 4' OR GREATER SHALL BE SUBMITTED TO BUNCOMBE COUNTY BUILDING SAFETY DIVISION FOR REVIEW AND APPROVAL AND CERTIFIED BY THE WALL ENGINEER UPON COMPLETION. RETAINING WALLS ARE SUBJECT TO ADDITIONAL LANDSCAPING DEPENDING ON HEIGHT AND MATERIAL. MASTER GRADING & STORMWATER PLAN GRAPHIC SCALE 100 0 50 100 200 ( IN FEET ) 1 inch = 100 ft. w v, >E-�Z O W � � Upq� �Md' �• � SEAL ' 9938 a � 2 � N Z :O z OU � W O Y m w O z �U Q >- m LUQ ce LTJ 0 L O �/ L Ln J_ V Z Q Q a� 0 0 V 00 00 J Q < i J Q i 0 U U� Q= oc O F- Z w Z ce LTJ 0 L O �/ L Ln J_ V Z Q Q a� 0 0 V 00 00 J Q < LTJZ O� J Q 0 U U� Q= oc O F- Z w Z m 0 O 0 LU J Q O N - N O N p .0-������ 400 1 C400 J Q � m z O w m Cr J N J Q U F- z O F-- o m Ln > m w =) (0 0:� cr) J o U w U) Cr o m - N m J < N O U O U 0 z z z � w O O W C) Q m z - Q vn O ) 0 0 0- cn w w M w o 0 o 0 0 w z 3: U 0 U m m O zliz z M U') C0 r` W O LLJ PROJECT NO.: 1 797 DRAWN BY: UAG DATE: 04-06-18 COA PROJECT NO.: 17-18-088 MSD PROJECT NO.: 2018094 400 1 C400