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HomeMy WebLinkAboutSW3220902_Plansheet - Other_20220921 (3)Skimmer Sediment Basin # 1 Design Skimmer Sediment Basin #2 design BILLY WILFORD HULL \� oQ` �' / Distrubed Area = 1.75 ac Distrubed Area = 1.80 ac Peak Flow 1Oyr Storm = 11.28 efs Peak Flow 10yr Storm = 7.27 cfs LOUISE MOORE HULL j �o // / \ D.B. 235, PG. 133 \ \ \ Basin Length at Spillway Invert 90 ft Basin Length at Spillway Invert 70 ft PIN: 5544299780.0000 \ S/� J / / \ .. Basin Width at Spillway Invert 45 ft Basin Width at Spillway Invert 35 ft Required Storage Volume = 3,150 cu. ft. Required Storage Volume = 3,240 cu. ft. Provided storage volume = 6,576 cu. ft. Provided storage volume = 3,736 cu. ft. INV:572.67 \ PI-P Required Surface Area = 3,667 s ft. INV:573.62 � - q q• Required Surface Area = 2,364 sq. ft. INV 2 4 \ \ \ Provided Surface Area = 4,050 sq- ft- provided Surface Area = 2,450 sq. ft. 12 Aso /// ` \ - - - - - Storage Depth = 2.0 ft Storage Depth = 2.0 ft _ \ Spillway length = 5 ft (min) Spillway length = 5 ft (rain) / INV:5 .19 -- ---- --- /�� Side Slopes Ratio= 3:1 Side Slopes Ratio= 3:1 Top of Dam Elevation = 565,0 ft Top of Dam Elevation = 565.0 ft INV:571.35 / / _ _ - - - - \ \ \ \ / Spillway Elevation = 563.5 ft Spillway Elevation = 563.5 ft L,J ^ / \ / ss Bottom Elevation = 561.0 ft Bottom Elevation = 561.0 ft PP o o / / ,fie /� / / �' \ \ \ \ = S69°08 �O°O E o n / / _ _ _ °� \ \ \ - \ \ 0 �6,F �3O Skimmer Size Summary: Skimmer Size Summary: No /// / / / / / - - - o \S '°\` \ \ `... ) °O �Q� Skimmer size: 2 Inches Skimmer size: 2 Inches C / ?0\ \ \ \ \ \ 29• i� Orifice size: 1.25 Inches Orifice size: 1.25 Inches EBENEZER CHURCH / - - \ \ \ 68Sg• �... HENRY TRENT LITTLE D.B. 444, PG. 698 / / \ \ \ D.B. 14299, PG. 11 PIN: 5545207149.0000 / / \ \ \ \ 'O\ \ _ 889 A PIN: 5545307353.0000 / \ \ \ \ \ \ ° _ _ _ _ 63 ..\\....\ ROpFR/y ZONED: C24/27 INV-.566.96 / �r // / \ - - - - � \ \ \ �;' \ \ \ \ \ \OpFRIY � N .. \ FR �•6 23 / \ \ a \ \ FpFR pG / 5 INV:567.3/ / � \ \ / \\\ 4\\ \ \ oe 129 Q �r EBEN � R °Q�H 6RCH 98 PROP. BORROW AREA \ \ \ s p / QcA 44 � 5 149.0000 / 5 - - - - - - - - _ 4kok \ \ \ `S \ \ \ \ \ \O �� // \\\��\\\ ~sue / ---\ \,- \\ CAROL INA THOI�AS \\ �\ \ \ gCRFsR \ ... �Q .00`Po,i\ \ \� - - �' DEVELOPMENT, LLC o • \�� \ \ D.B. 15603, PG. 225 \ \ \ I PIN: 5544299780 0000 \ SILT FENCE EX. DITCH TO REMAIN \ \ \ o sT \ - - - - \ \ \ G rq� UNDISTURBED AND ` \ \ WITH ROCK \ \ \ 's\ �.. \ F OF �r00 \ �, G] \ TEMPORARY \ \ 'sue \ - _ \ \ \ OUTLET (TYP_) \ ` Q S \ \ l S38. USED A5 A CLEAN \ GjQ / WATER DIVERSION I DITCH .�\ \ ``,\ \ `s / \ q _ _ _ \ \ \ \ ya��,o- \ \ \ 6 SWALE CROSSING \\\ \ `\ `\ ` ` / - - - - \ \ \ \ �° 1°\= \ \ \ / / l \..8°0S' O / 1 \ \ I l 1 1 I \ \\ \ \\\ \ \�\ \\ e'' _ �o��° \ \ \ \ \ \ \ \ F--- et\ bt °� 160 SF 41 SF SILT FENCE / O� hP� r - \ I I \ \ WITH ROCK70 OUTLET (TYP.) s ° �J \ CLEAN WATER DIVERSION BERM \ * A USABL S 12'X50' I I II II I \ \ \ \ \ \ \ \ �� F\ \ �\ �s \ _ \ \ \ \ \ \ / / r TEMPORARY I 1 \ \ \ \ \ \ \ \\J��S \ 1 1 5` * t \ \ \ \ \ \ \ \ \ \ \ (PER PIEDMONTENVIRONMENTAL IRONMENTAL CONSTRUCTION / • I I \ \ \\ \\ \ ,� \ \ \s 1 � - - - - \ \ \♦ � \ \ ASSOCIATES, P.A.) ENTRANCE \♦ \ \ \ ! 33,500 SOFT TEMPORARY 24" HOPE \ \ \ PIPE UNDER DITCH r I I I I CROSSING (20 LF) \ \IN � \ \ \ \ \ I 132.26f(M) I I / / \ \\ \ \ \\ \\ \\\ \ \`\\ \\\ `sa`l I ( /�r� \'� \ \\\�`. \\\ \\\`� \\` ♦ \\\ `�`? s ls'oo w� rsoo�R) / \ l o I \ \ \\ \ I \ \ \ \\\\\\\ \\�� \ / I \\ \ \ \\ - - (0 6.13 / oa, PG. 232) I o I 1 \ \ I \ \ \ \ \ ` \ `3F - I 1 I\ < • \\ \ \ \ \ �\ \� \ \ \ \ ! \ \ \ \ ao \\\\��ti CL Ld SHED a I I ° \ �` SKIMMER SEDIMENT BASIN 1 �" / // // J WOOD N EXISTING 1 STORY METAL /� / / 1 / / / / / / / GRID BUILDING /o / / / // / / / / / / / / / / / / / � \� � \\ \\ \ I � � \ \\ \ \\ \ \ \ \\ \ \ ♦ \ \ �\ \ \ \ o / / / \ \ Lo INV: 69.49 � \' , \\\ • � � I ` \ POND PROP, \ \ \\ \ I \ \ \ \ \\ \ \ \ DIVERSION' Lo / // _� v INV568.8 / /- �--��/ BERM � \-, -J`\ \�,` / / �\ \ \ \ \ / // / _ --�1-_ \ `� V�\\� A /PIPE , \ i I=--►'z- _ - \ \ \ \ \\ \\ \ \ \ \ \\\ \\ \ \ \ \ V \ a I / / / \ ti. \\\ \ \ \\ \\ \ \\ \ \ \ \ \ \ IPA 19 d N PERMANENT DRAINAGE SKIMMER \ \ EASEMENT W I / / / 0 \ _ - \'• `\\\\J \\ SEDIMENT \ \\\ (D.B. 1290, PG. 254) N O may\ - CONTRACTOR TO \ \ REMOVE EX.-_ _ STRUCTURES �\ \�S� \\ \ \\ \\\�'\\\ \` \.\\\------ - - -- _ --__- _ \`� \ ' \\ \\ \ \\ \\ / , \------ _ - - \ 1 I \ .00 000 INV:5 \ \�G-----_�---- - va- - - !- - - --- W_ `rod_ - _=.ag��=�' - ________ = - Ira-�s�97=_____- I _ - } 4- Rc-56 \ w 2 _ _ _ _ "" Pq \ \ �- '� -__ --"_-� - -___�s6�ez =__ ---�- - - r�fi� - >a�_ --_ - -_- - _- -N E € - -E" E �� E .� E E E E E E E �� E' -� _- H -�ryE-- --���-_-.-�. --- E ��- W W ,, . W y�-- ��: W W -may W W:: I`JC.- _ - - - - _ _ _� IN I G C P } - �,� �.t _ _ W PP - - - - _- - N 8 41 40 W8.2� - - -------=----------------�-,--- --- -- _ _ -- i7 _ - E _ G�3 -- p� ----- SIG \ B _ CONCRETE _ a - o_� 18�_-_ 3C EX. HYDRANT TO REMAIN- \ \ \ \ \ \ ALBEMARLE ROAD (NC HWY 24- 27) \ DIVERSIONPROP \ \ \ \ \ \ BERM SA 0_ 0 Off' SITE NO HWY 24-27 E VICINITY MAP 1"=2000' SITE DATA: CAROLINA THOMAS DEVELOPMENT LLC PIN;55442997800000 D.B. 15603 PG 225 P.B. N/A TOTAL AREA FROM SURVEY_ 12,36 ACRE$ (INCLUDES AREA WITHIN OVERLAP AND AREA WITHIN JIM SOSSOMAN RD.} AREA IN OVERLAP AND RIGHT OF WAY: 0.25 ACRES AREA EXCLUDING OVERLAP AND ROW AREA: 12.11 ACRES EFFECTIVE TOTAL AREA: 10,61 ACRES (1.5 AC POND AREA REMOVED) ZONING: C 24/27 GENERAL NOTES: 1. AREA AND PROPERTY LINES ARE BASED ON SURVEY BY R.B. PHARR & ASSOCIATES, P.A. DATED SEPTEMBER 10, 2021 2. THIS MAP DOES NOT MEET G.S.47-30 REQUIREMENTS AND IS NOT FOR RECORDING. 3. THIS PROPERTY IS SUBJECT TO ANY AND ALL EASEMENTS, AGREEMENTS AND RIGHTS -OF -WAY OF RECORD PRIOR TO THE DATE OF THIS MAP WHICH WERE NOT VISIBLE OR APPARENT AT THE TIME OF INSPECTION. 4. THIS MAP WAS PREPARED WITHOUT THE BENEFIT OF A TITLE INVESTIGATION, THEREFORE, THIS MAP IS SUBJECT TO ANY AND ALL FACTS AN ACCURATE TITLE INVESTIGATION MAY DISCLOSE, STORMWATER MANAGEMENT INFORMATION 1. THIS PROPERTY IS LOCATED WITHIN FLOOD ZONE X (ZONE X AREAS ARE DETERMINED TO BE OUTSIDE THE 0.2% ANNUAL CHANCE FLOODPLAIN) AREA AS INDICATED ON THE FLOOD INSURANCE RATE MAP (FIRM) MAP NUMBER 3710554400K, EFFECTIVE DATE NOVEMBER 16TH, 2018. 2. WATERSHED DATA: TOTAL EFFECTIVE AREA: 462,171 SF 10,61 ACRES c EXISTING BUA: 5,942 SF 0.136 ACRES (1.29%) EXISTING BUA TO BE REMOVED: 5,942 SF 0.I SO ACRES (1.29%) PROPOSED BUILT UPON AREA: 103,617 SF 2.38ACRES (22.42%) TOTAL BUA: 103,617 SF 2,38ACRES (22.42%) 3. ALL NECESSARY APPROVALS HAVE BEENI WILL BE OBTAINED FROM NCDEQ AND U.S. ARMY CORPS OF ENGINEERS FOR ANY WETLAND DISTURBANCE AND STREAM CROSSINGIDISTURBANCE WHERE APPLICABLE, WATERSHED DATA: NON -WATER SUPPLY WATERSHED RIVER BASIN: YADKIN-PEE-DEE SOIL TYPES HeB, KkB, Tag, W CONSTRUCTION SEQUENCE \\ 1. OBTAIN SITE PLAN, EROSION CONTROL AND GRADING PERMIT, AND \ NCDOT DRIVEWAY PERMIT PRIOR TO ANY SITE WORK BEGINNING, \ 2. FLAG LIMITS OF DISTURBANCE, 3. CONTACT EROSION CONTROL INSPECTOR TO ESTABLISH A PRE -CONSTRUCTION AND INSPECTION SCHEDULE. DURING MEETING, CONTRACTOR AND INSPECTOR ARE TO DISCUSS THE SELF INSPECTION REQUIREMENTS AND SUBMITTAL PROCESS. 4. CLEAR AND GRUB SITE TO ONLY INSTALL PERIMETER EROSION CONTROL DEVICES INCLUDING THE TEMPORARY CONSTRUCTION ENTRANCES, DIVERSION BERMS, SKIMMER SEDIMENT BASINS, PERIMETER SILT FENCES, AND ROCK OUTLETS. 5. SEED EMBANKMENTS AND DISTURBED AREA OF DEVICES UPON COMPLETION OF CONSTRUCTION, SEE GROUND STABILIZATION CRITERIA IN THIS CONSTRUCTION SET. 6. REQUEST AN INSPECTION FROM EROSION CONTROL INSPECTOR FOR COMPLIANCE, 7. CLEAR AN 1) GRUB REMAINDER OF THE AREA WITHIN THE DISTURBED LIMITS, 8. CONTINUE TO STAGE 2. EROSION CONTROL MAINTENANCE PLAN 1. INSPECT ALL SEDIMENTATION AND EROSION CONTROL DEVICE FOR STABILITY AND FUNCTION EACH WEEK AND FOLLOWING EACH RAINFALL EVENT. 2. REMOVE SILT/SEDIMENT FROM TEMPORARY DEVICES WHEN ACCUMULATED VOLUME HAS REACHED 50% CAPACITY, \ 3. REMOVE ACCUMULATED SILT/SEDIMENT FROM BEHIND TEMPORARY SEDIMENT FENCE WHEN DEPTH EXCEEDS APPROXIMATE 0.5'. REPAIR AND REPLACE SILT FENCE AS NECESSARY. 4. SEED AND STABILIZE TEMPORARY DIVERSION BERMS IMMEDIATELY AFTER CONSTRUCTION INCLUDING "CLEAN" WATER DIVERSION BERMS. RE-GRADE/REPAIR BERMS AS REQUIRED. 5. CONTRACTOR SHALL APPOINT AN ON -SITE AND MAINTAIN RECORDS OF INSPECTIONS IN ACCORDANCE WITH THE PROVISIONS OF THE GENERAL NPTES STORM WATER DISCHARGE PERMIT FOR CONSTRUCTION ACTIVITIES. 6. TEMPORARY DIVERSION BERMS CAN BE ADJUSTED TO ACCOMMODATE GRADING ACTIVITIES. 8. ALL DISTURBED AREA AND SLOPES SHALL BE STABILIZED WITH TEMPORARY SEEDING AND MULCHING WITHIN 14 CALENDAR DAYS, FOLLOWING THE COMPLETION OF ANY PHASE OF GRADING OR PERIOD OF INACTIVITY, PERMANENT GROUND COVER SHALL BE ESTABLISHED FOR ALL DISTURBED AREA WITH 14 CALENDAR DAYS, FOLLOWING COMPLETING OF CONSTRUCTION, COMPLETION OF GRADING, OR PERIOD OF INACTIVITY, PERMANENT SEEDING, MULCHING, AND GROUND COVER SHALL BE APPLIED FOLLOWING THE COMPLETION OF CONSTRUCTION. HIGH QUALITY WATER ZONES AND PERIMETER DIKES, SWALES, DITCHES, AND SLOPES SHALL BE STABILIZED WITH TEMPORARY SEEDING AND MULCHING WITHIN 7 CALENDAR DAYS. ^L L , L ro a) Z J `} E 0 t° " a Ln _ Q C M UU r1i Z LO LU H Ln 7 Ln v u0 _� a O 1' �v O ry <az tr �LLp LL 0 LL Z Z � +b Z r Lu (r J 5 � LL Oct LV o V�V a _ [J� LI} J Q a T0 i �0 V Q Z Z 0 J Cj) 0 �0/ I.L W � Z) a W Q UJ C} Z U o < �) U Z m _jU0 } W2 w D}Q D Of 0 ­- 11U0u} LU a Z o Q E w E w H u ZQ©aa©a DRAWN BY : JRA CHECKED BY: AC DATE: 08/05/2022 PROJECT NO.: 03003.003 REF, NO.: - SCALE; 1" = 40' s Q� ASS °j 053670 SHEET 7 OF 1