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HomeMy WebLinkAboutSW8111117_APPROVED PLANS_20121001STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW����� 1 DOC TYPE ❑ CURRENT PERMIT 71} APPROVED PLANS ❑ HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE YYYYMMDD .. . ..... _. ....% .' -.A._ _.� . _'r.I'. _ 'L 'i [.S_ . . L _... _ .I . _ _ ... ._ x __L.:•!�L1. ,_1L.l : 1 A, SEA VIEW DR. AS�ALWp,S�RWA� 1NT�`CO SAlLF1SH SEASIDE DR. HOLDEN DR. ITE BEACH , N . G. i , �-c \ OCEAN ATLANTIC VIEW BLVD. OCEAN WEST VICINITY MAP NOT TO SCALE ; 5TORMWATER NARRATIVE SR 1 120 SABBATH 5R 1 239 HOME �- OCEAN VIEW--IVROAD AVENUE NC 1 30 n S I NTERCOA5TAL WATERWAY o This project entails the construction of a single-family house with driveway and pool on a lot located at 9GG Ocean Boulevard West in Holden Beach, North Carolina. The owners are Mr. Michael Brody and Mrs. Kay Brody of 209 Lindamans Drive, Cary, North Carolina 27519. The contractor is Carolina Blue -water Construction (CBC). of Ocean Isle Beach, North Carolina. Mr. Scott Quaintance is the owner of CBC and is the contact person relative to construction activities. A major CAMA permit is required,for this project due to a small finger of wetlands located on the lot. Due to the CAMA permit requirement, this project is also subject to State Stormwater permitting requirements. This drawing and associated documents constitute the submittal package representing compliance with State Stormwater. The project is within I/2 mile of the Atlantic Intracoastal Waterway (Waterway). The Waterway in this location is classified as SA. The proposed method for 5tormwater management for this project entails collection of runoff from all built -upon areas and directing it to an on -site infiltration basin. Due to the space limitations, the 5tormwater management plan was prepared in compliance with Section I G.3.9 of the MCDEMR 5tormwater BMP Manual. ' 5pecifically, the I 0-yea'r, 24-hour storm event 15 collected infiltrated without discharging the system using an infiltration rate of one-half of the infiltration rate reported in the project 50115 report. The soils report was produced by B. M. Long * Associates, dated March 7, 2012. Mr. Vincent Lewis visited the site on March 2G, 2012 to perform soils evaluations on behalf of NCDENK. Mr. Lew15' findings were favorable, supporting Mr. Long's findings; i.e., the estimated infiltration rate equals or exceeds 15 inche5/hour and there is at least 1 2" of suitable in -situ soils at the proposed location of the infiltration basin. It is further noted that Mr. Lewis actually found over 24" of suitable 50115 in a portion of the area where the infiltration basin will be located. Final design yields an estimated depth of suitable m-situ soils in the infiltration basin area to range from I G inches to 24 inches. Fill material, where needed, is proposed to be taken from the sandy on -site soils to obtain similar particle size distribution for the full depth of the filter medium. STORMWATER SYSTEM OPERATION * MAINTENANCE The Owner shall perform operation and maintenance activities as set out in the Infiltration BaSrn Operation and Maintenance Agreement (Agreement) for this project. A portion of the requirements of the Agreement include: • performing and keeping of a record of the infiltration basin and stormwater runoff features Inspections; • establohincg and maintaining a vigorous vegetative cover over the infiltration basin bottom surface as well as all stormwater swale5; • keeping the 5tormwater features free of sediment, trash and debris; • keeping pipes free from of obstructions; • maintaining structurally sound retaining walls along the design alignments and elevations; and, • monitoring 5tormwater drawdown within the infiltration basin area and reestablishing a fresh sandy soil surface layer and vegetation in the event ponding lasts more than 5 days. CONSTRUCTION SEQUENCE NOTE The construction sequence shall be such that disturbance of the in -situ soils in the area of the infiltration basin shall be minimized. Further, once the retaining walls have been constructed and suitable "fill" soils have been placed in the infiltration basin area, no disturbance of said soils shall take place other than that necessary for establishing of a vigorous grass cover. THI5 DRAWING 15 THE PROPERTY OF COMPA55 POINTE ENGINEERING. PA AND 15 NOT TO BE REPRODUCED IN WHOLE OR IN PART WITHOUT WRITTEN PERM155ION FROM COMPA55 POINTE ENGINEERING, PA_ 0 COPYRIGHT 201 2 ALL RIGHT5 RE5ERVED CEAN VIEW Bt-VD. WEST 5R I I IGO 5AILF15H DRIVE N/F EASTERN CAROI_INA'S CONSTRUCTION t DEVELOPMENT CORPORATION DEED BOOK 1 155, PAGE 1 225 I COASTAL CAMA WETLAND SUPPLEMENTAL LINE FLAGGED BY DENR 404 +3.1 LOCATED 8- 17-11 WETLAND 4.1 VICINITY MAP ERB " 8150 obi e NOT TO SCALE 2 8+ tr rn z � 82003' 19 ERB O �L _ t z 3.1 + ,'404 LINE FLAGGED t BY USACE o LOCATED 8-17-1 1 7 rn TOP OF RETAINING r WALL @ 7.1 ' +^--- -2s'x 13, Z -_ G� 3. TOP OF RETAINING4.5 ? y - - - - WALL @ 7. I ` 0 0�` 0 '� 70 'e0 1 2" CPP Co 4 x I I - rn -� TOP OF RETAINING,,` - "-"' `,,`- ��Q� �� ` ` 10 = 5.2' 61 rn Z_ n , �F �,��� CONC. w_ z z WALL @ 7.0' ��, p 0 0 TOP OF RETAINING 55 { CP 404 LINE FLAGGED n WALL @ 7.1 ' b 16. ; ' �'� c7 BY USACE ' LOCATED 8-17-1 1 ^° `, W 121, CPP -i? I1-5.5' ; z 5.5 ' 10 = 5.2' , z CONC. t .5 ; , 0 r , 00 � t (s] ' 37. 9 ', , 7.2 S�- GRASS SWAL€ ' (TYP. EA 51DE.) '7 ` , 25.3 O 5 10 20 Scale: I' = 10' 40 G.8 CONC E S�D�ALK GE OF P>.SP�ALT PAVEMENT ED G.9 G.9 6.9 OCEAN\y HWWEST 6p Rl G.9 MR LOT 81 (VACANT LOT) ADDITION TO COLONIAL BEACH SUBDIVISION MAP BOOK I G, PAGE 41 BENCHMARK MAG NAIL ELEV = 6.88' NAVD 1988 LEGEND EA5TING GRADE ----- 5---_- PROPOSED GRADE 5 EXISTING SPOT ELEVATION +3. 1 PROPOSED SPOT ELEVATION 7.4 PROPOSED ROOF AREA PROPOSED GRAVEL DRIVE AREA ZAiNAGE AREA aUNDARY k = 4,535 51' ROOFTOP BUA = 1,783 5F DICK DRIVE BUA = 775 5F BUA * DRAINAGE AREA MAP SCALE: I " = 20' NOTES: 1. Rooftop shall be guttered and all runoff Shall be piped to the infiltration basin. 2. All runoff from the driveway Shall be directed to the infiltration basin. Said transport Shall be either through vegetatal swales as indicated by the grading plan or by a piping 5y5tem proposed by the owner15 representative and approved by the engineer. 3. F'ill material in infiltration basin area Shall be from on -site sand Sources. Fill shall be worked into existing Soil by disking or other Suitable means. 2 SCALE: I' ® 10 DRAWN BY: TMM CHECKED BY: DMC 155UFD DATE:4/ 1 1 / 12 a m 0 0 o ,C: N a � W Q Z � Q V UJ H � J 0 O Z �' Ili- n _ Z w m V W V z LJ Z o0 p O � 0 fl� (�J In N � O _ W FL 4_1 E M S a o m0U Ln = m o z E sa to `�Illll+ T� SEAL 9499 F map 'YGIIVE yam"\� ���1111 Nl1�\ FINAL DRAWING C. I NOT ISSUED FOR CONSTRUCTION PROJECT # 120305 -Ly .r.i! .t. t '+ - _.�1.t t:-. r'�e. -S. .�... -. ..� ... °; i.: !!,. .. �.- r..•.i .'}. .--r..�r ,=t4. t. �_•., 1 .G 1 30.7` B C 1 •&CIO n� A nPKI eo .moo° 169.96° o OO V/• �0 0 B 152.5,40 22.45 �p.2 C INFILTRATION BASIN DIMEN510NING PLAN SCALE: I = 5' i, TOP OF WALL @ 7. I ` -` r- TOP OF WALL @ 7.1' TOP OF WALL @ 7.D' - TOP OF WALL @ 7. I' BOTTOM Or INFILTRATION BASIN @ 5.0' INFILTRATION BASIN SECTION B-B SCALE: I " = 5' FILL 501L @ O' - 8- DEEF IN-51TU SOIL @ I G" - 24' DEEP ITH15 DRAWING 15 THE PROPERTY OF COMPA55 POINTE ENGINEERING, PA © COPYRIGHT 2012 AND 15 NOT TO BE REPRODUCED IN WHOLE OR IN PART WITHOUT WRITTEN ALL RIGHT5 RE5ERVED PERM155ION FROM COMPA55 POINTE ENGINEERING, PA. BOTTOM OF INFILTRATION BA51N @ 5.9 INFILTRATION I BASIN SECTION A --A SCALE: I " = 5' TOP OF WALL @ 7. I' BOTTOM OF INFILTRATION BA51N @ 5.0` TOP Or WALL @ 7.1' k 4 CONCRETE BA51N (".. 2 LOCATIONS) 1 2- HDPE (iYP.,l2 LOCATIONS) INFILTRATION BA51N SECTION C-C SCALE: I " = 5' BOTTOM OF INFILTRATION LEVEL @ 5.01 INFILTRATION 13A51 N FILTER MEDIA DETAIL NOT TO 5CALE FILL 501E NOTE Fill soil Shall be clean sand from on -site or from another source approved by the Engineer. Soli from another source shall have a similar particle 512e d15tributlon to that of the on-51te 50115. Fill 5011 shall be worked into the existing 5011 surface by d15king or other suitable means. I HEREBY CERTIFY THAT THE ATTACHED PLAT OF SURVEY IS A TRUE AND CORRECT REPRESENTATION OF LAND SURVEYED AND PLATTED UNDER MY SUPERVISION AND IS IN ACCORDANCE WITH THE STANDARDS OF PRACTICE FOR LAND SURVEYING IN NORTH CAROLINA. GARY L. GURGANUS, P.LS- L-3474 DATE THIS DOCUMENT ORIGINALLY ISSUED AND SEALED BY GARY L. GURGANUS, L-3474, ON 9-05-11. THIS MEDIA SHOULD NOT BE CONSIDERED A CERTIFIED DOC UMENT. TIE LIME: COMMENCING AT MONUMENT "HB 16", (NC GRID COORDINATES: N = 58.322,8069 AND E = 2,202,666.4042); THENCE S 80'40'53"W 1,026.55 FEET TO MONUMENT "HB 17 (NC GRID COORDINATES: N = 58,156.4887 AND E = 2,201,653.4218); THENCE S 81'49'41"W 649.50 FEET TO A COTTON SPIKE; THENCE S 84'49'57"W 532,30 FEET TO ERB "A"; THENCE S 81-46'02"W 49.95 FEET TO ERB "B". ALL BEARINGS ARE ORIENTED TO NC GRID NORTH, NAD 1983. ALt DISTANCES ARE HORIZONTAL GROUND DISTANCES. CON SWiT 6�p, N�F R f LUNMENT �A DEED BOOK 1199, PAGE 1225 COASTAL CAMA WETLAND ERB LINE FLAGGED BY DENR 404 +3.1 N 81.56'11 E LOCATED 8-17-11 WETLAND 1B .1 E ERB 50.08 2.8+ .0 3' 19 ` 9 ERB 3.1 49.98,10 2B 6" C EDA r q� 3B 404 LINE F C;GED BY US 8 PIN G. + ED 8-MIr 3.5 20' SI3 8' PIN UPLANDS +4.5 404 L1N LAGGE BY U CE+5.4 4 LOCA -1 , 6A 4.3 + MYRTLE Y6 8" Pk E 7A BUSH +4.5 s 4+ 5A 404 1 LOT 81 r? VAC ANT LOT ��11N x �s WETLAND ITIO AC 0AC H o �VI�I N LOT 85 (0j O 4A MAP BOOK 16, PAGE 41 } w � (VACANT LOT U' Iv 4P TII+�N o a 3A L3 (5,4 Co IU IfUfI NCH LOT 83 {VACANT LOT) +4.1 MAP BOOK 16, PAGE 41 7.2 0u 5,740 S0. FT. r Lr1 l m r UPLANDS 25, S8 L 0 + 4.4 5., 5£5 C EDAR -1 BUSH +4.8 3.9 S $1• 602 W „A„ 4 95' 5 ERB ERB 0 +5.4 }co � 1�-� +5.5 W O +EB +5.9 P67 m 6.8+- NOTES: *LOT 83 IS IN FLOOD HAZARD ZONE "VE", BASE ELEVATION 18 FEET BASED ON F.I,R,M, 37202005005. 6+_ PANEL DATE 06-02-06. *REVISED 09--02-11 TO ADD ELEVATION INFORMATION. , OC 2011, GARY GURGANUS LAND SURVEYING 20 0 20 40 SCALE 1" w 20' VICINITY MAP LEGEND: NOT TO SCALE EIP O EXISTING IRON PIPE (FOUND) NRB0 NEW RE -BAR (SET) SEA VIEW ERB O EXISTING RE -BAR (FOUND) DR. WA WAY [ CM A CONCRETE MONUMENT tN R1\C0A51AL SAILFISH PK O PK NAIL - EASIOE OR, EB ❑ ELECTRIC BOX HOLDEN DR. SIT TP ❑ TELEPHONE PEDESTAL BEACH, M Se BUILDING SET BACK LINE i 1 I 1� + EXISTING GROUND ELEVATION 1T OCEAN TIC VIEW BLVD. N .. WEST CONCRETE 51 6.9 6.9 6.9 EAN B Lo0-wA"( �S� OC 60' R1GHT 0 CD U ZLU0 O Kl � C) O r p H U <Q< zz 0 c� C) -1 zap z z � IV ER 0_ U O O z20 LINE BEARING DISTANCE L1 S 03-42 42 E 56,02 L2 S 59'05 36 W 13.64 L3 S 84.10 37 W 10.1 2 L4 N 42.32 29 W T 7 2' L5 N 45' 1 4 41 W 16.45 L6 N 64'32 25 E 21 ,02 L7 S 78.5513 £ 19.38 L8 N 13.11 04 W 44.10 L9 S 64' 12 03 W 1 1.1 1 L10 S 57-5 131 W 22.36 L 1 1 N 53'58 22 E 25.80 BENCHMARK MAG NAIL ELEV = 6.88 NAVD 1988 GARY GURGANUS LAND SURVEYING GARY L. GURGANUS, f .L.S 3369 HOLDEN BEACH RD,, SW Supply, North Carolina 28462 (910) 233-7605 SURVEY FOR MIC HAEL & KAY B RODY MADE FROM LOT 83, (966 OCEAN BLVD, WEST), SECTION B, ADDITION TO COLONIAL BEACH SUBDIVISION, MAP HOOK 16, PAGE 41, HOLDEN BEACH, NORTH CAROLINA AND EXISTING PHYSICAL EVIDENCE LOCKWOOD FOLLY TOWNSHIP BRUNSWICK COUNTY NO 9/2/11 RELD BOOK_005_ 020 FILE NO. 11071 JOB NO. 11071 FINAL DRAINING NOT ISSUED FOR CONSTRUCTION SCALE: 5EE DRAWING DRAWN BY: TMM CHECKED BY: DMC 155UED DATE:411 1/1 2 rb 6 0 L in % C Z Q IY 3 � n 78 Ul �_ c lu CQ m_ IM a CM � 0 JLU Z 01. a/ Q U ,�,/ �, -j �- O Z Q ED O W U z W O 0 tU 0 n�n T� Q L0 N o U 4 0� too 'n fV m -� ►u ° �_ O v SOU m O Z z V E c� 0 SEAL 1,1�5 � 949944) � �. '11111I111ti0 C-2 PROJECT # 120305 At) I.41.A4I .1 ri,14 1j.1,... 1,! '}, r"+ ! � u ,1 e t �� f n 1,' 1 �'c 1 _I .r,� �- ( •+ r ivi irY � 111 �;^�' ..r, .. i,I1 C[y''•