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HomeMy WebLinkAboutNCC232879_ESC Approval Submitted (2)_20231004 8 7 I 6 5 4 3 I 2 1 DISTURBED AREA = 442,900 SF, 10.2 ACC id'=d 7. DORAN PLACE I EiOW . -� �1a€ L---....r 1a€ w ///� m . ,:: .- w a ♦JS rift. -ice♦ - re 0=i sm rv�.-•♦. ♦OE/ SVIA. `, .ea glIRAI� Mg, •\�yti♦♦ 3 ♦e:.m� v ♦i err for-C��ii=- ♦ - € goo ®rift-0 I Lr. .. - - G7 % - f `� ♦ rift. t.♦♦� aL r♦ e .Ct' 40♦� ,RA, ♦♦ -t ♦x �0♦♦.�- u7 ♦• ►♦e... j,� �4,4i ��♦• . ` .. -;•, "ce- -♦♦/�r-♦J♦� mull .♦r. .Eq \�;^','J �f r�s.._�-_•_L�..0OI I •./p,O♦♦♦�O1•a♦ „r� r ♦•i<� �♦e� ���♦♦ ♦i♦� ►.�G�� ee.\b-.y. ....toi x ��I�� ♦.,♦ c ♦`i.1 ♦c♦ •ii♦Az**, +� ♦ '. mow \ _��� 1.� +.i��.�IrI�..�`�...:.LLf�1//�.��/iA�����S.r.��-_.-...�.�♦-,_I�e.�A�..A�♦• �s.�..�.�\!�I..r_.�RA, Lw..Ii�A1�L.�.�\1.�-.._�1l1�.-.IIs_. _--._ate_ �i��..L. A D...._��ma��.►.1....I�....�...� .710101::1 �0'� 4&�u,.� ��/��`�;m�< ; �� ii -.,� -. ��' _ _- t. _-_-- ice ___ -- - �� �-�:'.� f��--- ___ \ R �i m�������� 111 III ���\AA � IIMI III ; � ;D8\ �r�� 1! 11 p IE�1; ,F� `� III ,p pf 11,��'l� D '1NNILT5E- F-_,_4----;-',__ __r_7_ , 7mM,:i.jmm,_ ___?:.61- S!!1 t"...,-.--,, __ --C4 C� �..Y: 1/ � ��-.....,,,--- mt..: �� N AE-; . gvgl p-• OpVu\�\ 1 �j�I�� it �/ 1 I Mil;�/ ,i �1i♦°i� !� 1 L. > ON 10 t0 V O�ti`soa 1 >-WNd'O o < ��►�� o � q � cr w, 1.30% \._; •*.-\\\.. ti z Z-m S\ "st, :,..,_ �N•�j � '-\p4.49 __� _� - �.:..�>•'v....roo=r.-/'` � �D v 47..e:� r, 7I'� �- �fi;:.,,.�� co {V O L1` =LL. �i" ar-5 -`rI'i ' ae•! �T is �.J• '*♦• .�♦ Ilr v♦zr laic t •ii:� -�itt?:4 7; cri:-v\%�•♦♦• •�S �I, � s` ��� s�I� �.'-..�.�-.r. 1.. �.,�� ��io�i.,.a-. . .l�,:�.r" .o�, •n..� ......f._..� -:---��•eea� �a�7% S/! .S '�'.♦_ - - •�•X*.00'-^ z0^ D' ,r'��is_A a�s � �J`C7A.1.xw.�� it i L� ?)Istm tt•N i i 4,.'. et4; >0.W i!allwas ...:Ii .1�"uzrosiae� h 5���/ \��C��iLel� �a_'a`Olit1/L�ktilI�.f: __ !�•�lO�i�i�! ♦��.Li O - O -I) z 41 A\ L�M ANDOR PLACE j \ c `•` I DESIGNED: SMM C \ CONSTRUCTION SEQUENCE,PHASE 2 CONSTRUCTION SEQUENCE,PHASE 3 DRAWN: SMM ‘' 1. THE CONTRACTOR SHALL INSTALL ALL SEDIMENTATION AND EROSION CONTROL MEASURES AS REQUIRED BY THE 1. CONTINUE TO GRADE SITE AND ALLEY.INSTALL STORM SEWERS AS SHOWN ON SHEETS C16 THROUGH C18. APPROVED: CRP ' DRAWINGS AND THE ENGINEERS'REQUIREMENTS UNDER THEM. LEGEND FOR EROSION CONTROL DEVICES ,,,ra 2. PREPARE TO REMOVE SSB#1A. CONTACT STEPHEN LEISCHNER AT 919-278-6461 TO SCHEDULE AN INSPECTION 2. INSPECT ALL MEASURES FROM PHASE 1(SSB#1A,SSB#1B,SSB#2A,SSB#2B and SSB#3)OF THE SEDIMENTATION AND OF THIS PORTION OF THE SITE TO RECEIVE APPROVAL TO REMOVE THIS SEDIMENT SKIMMER BASIN. THIS y��1`': # GRAVEL CONSTRUCTION ENTRANCE ,,.�Q,-{v1 C4gp�,,1 1 ' I EROSION CONTROL PLAN AND ENSURE THEY ARE IN SATISFACTORY WORKING ORDER. REMOVE ALL ACCUMULATED BASIN SHALL NOT BE REMOVED UNTIL THE STORMWATER INSPECTOR HAS GIVEN APPROVAL TO REMOVE IT. =..l PER COR DETAIL SW-20.09 ?'OFE8gj0'•� Z; : LIMIT OF DISTURBANCE 'N 2``f-/ ' �' SEDIMENT FROM THESE MEASURES,AND REPAIR OR REPLACE MEASURES THAN HAVE BEEN DAMAGED. _ .i .,. 3. UPON APPROVAL TO REMOVE SSB#1A,PARTIALLY GRADE BASEMENTS FOR LOTS 3J AND LOTS iG SUCH THAT THE : SEAL 3. PRIOR TO THE BEGINNING OF THE SECOND PHASE, CONTACT THE STORMWATER INSPECTIONS REGIONAL FRONT SIDE OF THE UNITS ARE SLIGHTLY LOWER THAN THE REAR. SIDESLOPES SHOWLD BE 1.5:1 MAX AND -SF-SILT FENCE 02a395 O II. I ' COORDINATOR,STEPHEN LEISCHNER,AT 919-278-6461 TO SCHEDULE AN ON-SITE PRE-CONSTRUCTION MEETING. STABILIZE IMMEDIATELY.REDIRECT DIVERSION TO SSB#1B. USE TEMPORATY PIPE UNDER ALLEY. SILT FENCE OUTLET iC'S, ;:_p%jj CURLED WOOD MATTING 's,99Z'��•�.aINEEP`• 4. INSPECT,REFRESH ANDD/OR REPAIR ARC FILTERS AT CULVERT ENTRANCES AS SHOWN ON THE PLANS. INSPECT ALL 4. REDIRECT DIVERSION DITCHES TO ACCOMMODATE SCM CONSTRUCTION AND TO PREVENT SEDIMENTATION --' F q P r" ARC FILTERS AFTER EACH RAINFALL AS PER DETAIL,AND REPAIR FILTERS AS NEEDED AND REPLACE ALL DISLODGED FROM ENTERING THE SCM AREA.STABILIZE DITCHES WITH MATTING AS CALLED FOR ON THE PLANS. �liej DOUBLE NET POLYPROPYLENE BLANKET (///jyy'///yyi_r" ,, I I RIP-RAP. INSTALL OUTLET STABILZATION ROCK APRON OS#1 AT THE EXISTING 15-INCH RCP CULVERT AS SHOWN ON 8 I•Z� THE PLAN. 5. INSTALL STORMWATER CONTROL MEASURES (SCMS) SCM#1, SCM#2 AND SCM#3, AND STABILIZE ALL ARC FILTER I i EMBANKMETS.INSTALL ALL INTERIOR PIPING,INCLUDING OUTLET PIPING AND CONCRETE STRUCTURES. ALL PROJECT 5. SCHEDULE A STORMWATER SITE INPSECTION ONLINE AT permitportal.raleighnc.gov. PIPE INLETS SHALL BE PROTECTED FROM SEDIMENTATION, AND OVERLAND INLETS, EMBANKMENTS, SIDE-SLOPES AND SPILLWAYS SHALL BE STABILIIZED,AND MATTED AS REQUIRED. WATTLE V I I 6. UPON APPROVAL OF THE STORMWATER SITE INSPECTION,COMMENCE PERMITTED CONSTRUCTION ACTIVITY. J in INLET PROTECTION J S I 7. THE CONTRACTOR SHALL FIELD LOCATE ALL EXISTING UTILITIES PRIOR TO EXCAVATION. BEGIN OVERALL SITE AND 6. INSTALL OUTLET STABILIZATION RIP-RAP ROCK APRONS AT ALL STORM SEWER OUTLETS AND CULVERTS AT THE I . I ALLEY GRADING,INSTALL WATER LINES AND SANITARY SEWER LINES AS SHOWN ON THE PLANS. EXPOSED SURFACES LOCATIONS SHOWN ON THE PLANS. ALL OUTLET STABILIZATION APRONS SHALL BE INSTALLED TO THE 'sr¢. OUTLET STRUCTURE Z pe L. I SHOULD BE GRADED AND ROLLED AT THE END OF EACH DAY SO AS NOT TO POCKET RAINWATER. DIMENSIONS SHOWN IN THE DETAILS. SCM#1,SCM#2 AND SCM#3 SHALL HAVE RIP-RAP INSTALLED PER W IDETAILS AS SHOWN ON THE FOREBAY DETAIL INCLUDED ON SHEET D7. Z V I8. INSTALL THE NEW 36-INCH CULVERT,WITH ENDWALL ON THE INLET END,THAT CROSSES ANDOR PLACE PER PLAN Oj STORMWATER CONTROL MEASURE 0. W 0 J F V SHEET C16 AND DETAIL SHEET D6. INSTALL OUTLET STABILIZATION OS#3 PER DETAIL SHEET D5. REMOVE EXISTING 7. DURING THE COURSE OF CONSTRUCTION,ALL OF THE OUTLET STABILIZATION APRONS SHALL BE MAINTAINED, SEE DETAIL ON SHEET D7 0 Z d 0: II 18-INCH CULVERT AND DISPOSE OF AT AN OFF-SITE PERMITTED LANDFILL AND INSPECTED AFTER EACH RAINFALL. SEDIMENT THAT ACCUMULATES IN THE RIP-RAP SHALL BE REMOVED J Q Z J Z AND DISPOSED OF OFF-SITE. SEDIMENT MAY BE USED TO REPAIR AREAS DAMAGED BY EROSION AT THE O WATTLE YARD INLET PROTECTION W 1 1 9. INSTALL NEW 30-INCH BYPASS STORM SEWER PER PLAN SHEET C16 AND DETAIL SHEET D-6. INSTALL ENDWALLS AND DISCRETION OF THE ENGINEERS. AREAS BELOW ALL OUTLET STABILIZATION APRONS SHALL BE INSPECTED PER CITY OF RALEIGH DETAIL Q ) WINGWALLS FOR 30-INCH REINFORCED CONCRETE PIPE PER DETAIL. INSTALL OUTLET STABILIZATION OS#3 PER AFTER EVERY RAIN EVENT AND REPAIRED,RE-SEEDED AND STABILIZED AS REQUIRED. W J 0 I. N i DETAIL SHEET D5. O3 WATER BAR G Cl. p I. W m B 8. ONCE CURB AND GUTTER HAS BEEN INSTALLED WITH ALL STORM DRAINAGE UTILITIES,INSTALL CURB INLET, Z A/ 0 .1C1 B 10. SHRINK SSB#2A AS NECESSARY IN ORDER TO ACCOMMODATE THE INSTALLATION OF THE NEW 30-INCH BYPASS WATTLE AND DROP INLET PROTECTION DEVICES PER DETAIL. O DROP INLET PROTECTION 0 Id.0Z V = Y STORM SEWER.ADJUST DIVERSIONS AS NECESSARY. STABILIZE THE DITCH PER PLANS IN ORDER TO REDUCE EROSION I- O W O.DAMAGE. 9. COMPLETE WORK ON THE SCM'S AND STABILIZE. = Z O CONCRETE SCM OUTLET STRUCTURE 0 Q E 0 X. N 11. INSTALL THE NEW 30-INCH CULVERT,WITH ENDWALL ON THE INLET END,THAT CROSSES DORAN PLACE PER PLAN 10. INSTALL ADEQUATE EROSION AND SEDIMENTATION CONTROL MEASURES AND/OR INCREASE MAINTENANCE occZ N 2 SHEET C16 AND DETAIL SHEET D6. INSTALL OUTLET STABILIZATION OS#2 AND OS#3 PER DETAIL SHEET D5. REMOVE FREQUENCY WHERE APPROVED MEASURES FAIL TO PREVENT ACCELERATED EROSION, OFF-SITE ,e.' :OUTLETO W C EXISTING 18-INCH CULVERT AND DISPOSE OF AT AN OFF-SITE PERMITTED LANDFILL. SEDIMENTATION OR REPETITIVE NON-COMPLIANCE. >�^. (APROO STABILIZATION FOR PIPES NS IN SCMS NOT SHOWN rem H G: C W 12. ONCE THE 30-INCH BYPASS SEWER IS COMPLETE AND OPERATING IN A MANNER THAT IS SATISFACTORY TO THE 11. CONTACT STEPHEN LEISCHNER AT 919-278-6461 TO SCHEDULE AN INSPECTION OF THE SITE TO RECEIVE Z u. 0 OWNER AND THE ENGINEERS,THE BYPASS SWALE INSTALLED DURING THE PREVIOUS PHASES SHALL BE BACKFILLED. APPROVAL TO REMOVE THE REMAINING SEDIMENT SKIMMER BASINS. THIS BASIN SHALL NOT BE REMOVED "W B OUTLET SEE CURB DETAIL SHEET D6 .4 S. STABILIZE AS NEEDED WHILE KEEPING SSB#2A AND SSB#2B OPERATIONAL UNTIL THE STORMWATER INSPECTOR HAS GIVEN APPROVAL TO REMOVE THEM. UPON APPROVAL TO REMOVE Q i- THE REMAINING SEDIMENT SKIMMER BASINS, ALL SEDIMENT SKIMMER BASINS SHALL BE BACKFILLED, Q; V 13. GROUND COVER SHALL BE PROVIDED AS FOLLOWS: BROUGHT TO FINAL GRADE AND AREA STABILIZED. 0 7 A. FOR ALL AREAS OF MODERATE AND/OR STEEP SLOPES,PROVIDE A TEMPORARY GROUND COVER IF THE SLOPE HAS NOT BEEN DISTURBED FOR A PERIOD OF FOURTEEN(14)DAYS. CONSTRUCTION SEQUENCE,PHASE 4 B. PROVIDE GROUND COVER SUFFICIENT TO RESTRAIN EROSION ON ANY PORTION OF THE STIE UPON WHICH 1. BEGIN FINAL GRADE FOR THE SITE. UPON REACHING THE PROPER GRADES PER PLAN,THE SITE SHALL BE FURTHER LAND DISTURBING ACTIVITY IS NOT BEING UNDERTAKEN WITHIN FOURTINEEN(14)CALENDAR DAYS OF SEEDED PER REQUIREMENTS SHOWN IN THE DETAILS AND NPDES SHEET. MATTING SHALL BE INSTALLED AS TEMPORARILY OR PERMEANENETLY SUSPENDING LAND DISTURBING ACTIVITY. CALLED FOR ON THE PLANS. C. ESTABLISH PERMAENENT GROUND COVER SUFFICIENT TO RESTRAIN EROSION WITHIN FOURTEEN(14)CALENDAR 2. VEGETATION USED FOR GROUND COVER MUST BE OF MOWABLE LENGTH WITH 100%COVERAGE AND 80% 4 4 DAYS FOLLOWING COMPLETION OF CONSTRURCTION OR DEVEELOOPMENT AND/ORPRIOR TO FINAL INSPECTION. DENSITY WITH NO LARGE BARE PATCHES. ' I 14. GRADE ALL DITCHES WITHIN THE LIMITS OF DISTURBANCE IN THE RIGHTS-OF-WAY OF ALL NCDOT ROADS. INSTALL 3. ONCE THE SITE HAS BEEN STABILIZED,CONTACT THE STORMWATER INSPECTIONS REGIONAL COORDINATOR, REVIEW SET EROSION CONTROL MATTING PER DETAIL AND INSTALL ALL TYPES OF MATTING AS CALLED FOR ON THE STEPHEN LEISCHNER, AT 919-278-6461 TO SCHEDULE AN INSPECTION OF THE ENTIRE SITE TO RECEIVE SEDIMENTATION AND EROSION CONTROL PLAN FOR PHASE 2.INSTALL WATTLES AS DIRECTED. APPROVAL TO REMOVE TEMPORARY SEDIMENTATION AND EROSION CONTROL MEASURES. TEMPORARY EROSION CONTROL MEASURES SHALL NOT BE REMOVED UNTIL THE STORMWATER INSPECTOR HAS GIVEN THE R I% o 15. INSPECT ALL INSTALLED MATTING AND WATTLES AFTER EACH RAINFALL AS REQUIRED. REPAIR AND RE-SEED ALL APPROVAL TO REMOVE THEM. NOT RELEASED p: AREAS WITH EROSION DAMAGE. REPAIR OR REPLACE DAMAGED MATTING. REPLACE DISPLACED WATTLES. i3 r r N 0 ADDITIONAL MATTING OR WATTLES MAY BE REQUIRED IF INSTALLED SEDIMENTATION AND EROSION CONTROL 4. ENSURE ALL INLETS TO STORMWATER CONVEYANCE SYSTEMS ARE STABLE ALLOWING ONLY CLEAR WATER, R o 8 DEVICES ARE INSUFFICIENT FOR THE SITE CONDITIONS. REMOVE ANY SEDIMENT FROM THE STORM INLETS AND PIPES.KEEP SEDIMENT FROM REACHING SCM'S. FOR CONSTRUCTION iy w - $ o i S 0 A 5. ONCE THE GRADING IS COMPLETE,THE SITE STABILIZED AND ALL TEMPORARY SEDIMENTATION AND EROSION W A CONTROL MEASURES REMOVED,SCHEDULE A FINAL INPSECTION ONLINE AT permitportal.raleighnc.gov. FULL - r "' STABILIZATION ON THE ENTIRE SITE IS REQUIRED IN ORDER TO OBTAIN A CERTIFICATE OF OCCUPANCY. SCALE CITY OF RALEIGH-PLANS AUTHORIZED FOR CONSTRUCTION 6. ONCE THE STORMWATER FINAL INSPECTION IS APPROVED,CLOSE THE GRADING PERMIT AND OBTAIN A Plans for the propersed use have been rewewed for general complenm wrth applicable codes.This limited review,and DATE: 04-12-2022 1. UNLESS OTHERWISE NOTED, ALL TEMPORARY CERTIFICATE OF COMPLETION. authorization for construction is not to be considered to repmsenf total compliance with all legal requirements for - DIVERSION DITCHES SHALL BE LINED WITH CURLED deeelopment and construction.The property owner,design comuhants,and contractors are each responsible for SHEET NO.: WOOD MATTING. compliance with all applicable CM,Sta.and Federal laws.Thisapecific authoriMionbelow a not a permit,nor shall R be ch edera wdFederalpermand Reivations.This State wfofthe law.All Construction document must bina ifthedwwith halml Look teen 2. CONSTRUCTION ENTRANCES SHALL BE EQUIPPED 60 0 60 120 180 and Federal Rules and Regularion,.Thisapproval efthe.I.,o-oniodorum..fee, ..I4fthed«um.uthesnetbeen WITH 15-INCH RCP CULVERT PIPES. IMIIMIIMI madded and the digital signature belowisvalid. SURVEY DATA PROVIDED BY SCALE: 1"=60' BERNARD Sc ASSOCIATES CONTOUR INTERVAL= 1' C7 PROFESSIONAL LAND SURVEYORS VERTICAL DATUM: NAVD'88 324 DIMOCK WAY City of Raleigh Development Approval WAKE FOREST, NORTH CAROLINA 919-414-3601 SEQUENCE NO. OF 8 7 1 6 5 ? 4 3 1 2 1