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HomeMy WebLinkAboutSW8040938_APPROVED PLANS_20041214STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW�JD DOC TYPE ❑ CURRENT PERMIT APPROVED PLANS ❑ HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE YYYYMMDD .,: LLJ Q Ill 6i h O O CLl O/•�r� 1 ) .4 .4 3 Q� 0 d 4 1-1 0) 3 O U Q) I� C:) 0 0i Ui U O a. d J U ULTRAVIOLET REWANT (e MW FABRIC OR EQUIVALENT TO WIRE WITH METAL CLPs OR NNE AT e' orF 12 GUM 4X4' OR 2'X4' WELDED WARE HOOKED ONTO CENTER: PRVVRMeD CWWNELS ON METAL POSTS, OR FASTENED TO CEDAR OR WOOD POSTS WI14 140. a STAPLES. MAXIMUM SEDIMENT STORAOE LEVEL REMOVE SEDIMENT WHEN THIS LEVEL IS REACHED OR AS O RECTED BY INSPECTOR. 3.0' NATURAL GRADE • - 004ER WIN SOL AND TAMP 9AWI.L. ' CARRY e' OF WIRE Mf0 TRENCH. 2' MMMUAY META. CEDEP AR OR 4'x4' TREATED WOOD POSTS AT 8' L oFF cum MAIaMuM. CEDAR mo WOOD P= SHOULD BE W DEMINIMUM. Silt Fence Detail NO SCALE STORMWATER SYSTEM MAINTENANCE LAN CONSTRUCTION OPERATIONS: 1) FOR PROPER OPERATION OF INFILTRATION SYSTEMS, IT IS IMPERATIVE THAT THEY BE PROTECTED FROM SEDIMENTATION DURING CONSTRUCTION. DURING CONSTRUCTION AND UNTIL SUCH TIME AS SITE IS STABLIZED WITH VEGETATION AND PARKING AREAS ARE PAVED, OWNER SHALL INSPECT ALL EROSION CONTROL DEVICES AFTER EVERY SIGNIFICANT RAINFALL EVENT (I.E., > I" PRECIP.). ALL OVERLOADED OR NON-FUNCTIONING EROSION/SEDIMENTATION DEVICES SHALL BE REPAIRED OR REPLACED. 2) DURING CONSTRUCTION, OWNER SHALL INSPECT INLET STRUCTURES AND REMOVE ACCUMULATED SEDIMENT AND/OR OTHER MATERIALS AFTER EVERY SIGNIFICANT RAINFALL EVENT OR ON A WEEKLY BASIS, WHICHEVER IS MORE FREQUENT. NORMAL OPERATIONS: 1) DURING NORMAL OPERATIONS, OWNER SHALL INSPECT INLET STRUCTURES AT 6 MONTH INTERVALS. ALL SEDIMENT SHALL BE REMOVED AT SUCH TiME SEDIMENT DEPTH EXCEEDS 9". SEDIMENT SHALL BE PROPERLY DISPOSED OF OFF -SITE, 2) DURING NORMAL OPERATIONS, OWNER SHALL INSPECT GREASE SEPARATOR AT 6 MONTH INTERVALS. ALL ACCUMULATED GREASE, OIL AND/OR OTHER FLOATABLES SHALL BE REMOVED AND PROPERTY DISPOSED OF OFF -SITE. 3) PARKING AREAS SHALL BE SWEPT AND/OR BLOWN AT 6 MONTH INTERVALS. ALL ACCUMULATED SWEEPINGS SHALL BE PROPERTLY DISPOSED OF OFF -SITE. IN CONJUNCTION WITH SWEEPING OPERATIONS, OWNER SHALL VISUALLY INSPECT PARKING AREAS FOR DAMAGED, LOOSE OR MISSING ASPHALT PAVEMENT. DAMAGED/MISSING ASPHALT SHALL BE REPAIRED. 4) CUPPINGS FROM GRASS MOWING OPERATIONS SHALL BE COLLECTED AND REMOVED FROM THE SITE, ALL DEBRIS RESULTING FROM MAINTENANCE OF LANDSCAPING MATERIALS (TREE AND SHRUB CLIPPINGS) SHALL BE PROPERLY DISPOSED OF OFFSII'E. VEGETATIVE WASTE MATERIALS SHALL BE PREVENTED FROM ENTERING STORMWATER SYSTEM, 5) AT FIVE YEAR INTERVALS, OWNER SHALL EMPLOY A REGISTERED ENGINEER OR OTHER DESIGN PROFESSIONAL TO EVALUATE THE CONDITION OF THE INFILTRATION SYSTEMS. THIS EVALUATION SHALL, AT A MINIMUM, CONSIST OF AN ON -SITE INSPECTION AND SHALL INCLUDE AN ASSESSMENT OF INFILTRATIVE CAPACITY OF EACH SYSTEM FOLLOWING A RAINFALL EVENT. ENGINEER SHALL PROVIDE CERTIFICATION THAT SYSTEM IS OPERATING WITHIN DESIGN PARAMETERS. 6) AT SUCH TIME INSPECTION REVEALS THAT INFILTRATION SYSTEM INFILTRATIVE CAPACITY HAS BEEN REDUCED TO } OF DESIGN CAPACITY, OWNER SHALL REPAIR AND/OR REPLACE INFILTRATION SYSTEMS AS MAY BE NECESSARY TO RESTORE INFILTRATIVE CAPACITY. EXISTING ROAD R/W CONSTRUCTION ENTRANCE PROFILE R/W PLAN VIEW 1. Stone size - Use MSHA size No. 2 (2-1/2' to 1") or AASHTO designation M43, size No. 2 ( 2-1/2" to 1-1/2'). Use crushed stone. 2, Length - As effective, but not less than 50 feet. 3. Thickness - Not lase than six (6) Inches. 4. Width - Not less than full width of all points of Ingress or egress. Minimum of 12'. 5. Washing -When necessary, wheels shall be cleaned to remove sediment prior to entrance onto public right-cf- way. When washing is required, it shall be done on an area stabilized with crushed stone which drains into an approved sediment trop or sediment basin. All sediment shall be prevented from entering any storm drain, ditch, or watercourse through use of sandbags, gravel, boards or other approved methods. B. Maintenance - The entrance shall be maintoined In a condition which will prevent tracking or flowing of sediment onto public rights -of -way. This may require periodic top dressing with additional stone as conditions demand and repair and/or cleanout of any measures used to trap sediment. All sediment, spilled, dropped. washed or tracked onto public rights -of -way must be removed immediately. Temp. Construction Entrance NO SCALE 3000 P.S.I. CONCRETE 6' 7" 1-1/2' BCSC Superpave Type S9.58 8' CABC 12" ,~;+ g'.Z�iC��• COMPACTED SUBGRADE F--1 CABC NOTE: 1. CURB AND GUTTER ONLY TO BE USED IN AREAS SHOWN ON PLANS 2. SPILL GUTTER TO BE USED iN AREAS WHERE FLOW IS TO GO AWAY FROM GUTTER. 3. CROW DRIVES UNLESS GRADES INDICATE OTHERWISE. Curb & Gutter / Paving Detail WALK (WIDTH PER PLAN 3000 PSI CONCRETE SIDEWALK ASPHALT 1 1/2' PER fN]O7 1/4-/FT• MIN. SLOPE MIN. SLOPE SXS-10/10 WWM BUILiNNG Combination Curb/Sidewalk NO SCALE NO SCALE \ t x15.2 N1231'15 8 \ 2IP'53"E \1 1 �' �' 1\ f /'' \� \\ \\\ \\ \\ I lr \\ 4,5 N42':g-ij� DISTURBANCE ti 4 DISTURBANCE /UMIT \ GREASE/OIL Wetiond IrC1 1` .:} +• fi/2' MESH'NARDE CLOTH ::a '.r." +;.:• mmmmmm ATCH BASIN mmmmm 111511115F OAF Ti43 WASHED STONE PLAN RE CL gg RDWAOTH SECTION A -A Block &Gravel Inlet Protection NO SCALE • 90.OD' R/W APPRO V EWMMMOM MANAG€Meff COMMM" L1\ 1) THIS PROJECT HAS BEEN DESIGNED SUCH THAT POST DEVELOPMENT STORMWATER FLOWS DO NOT EXCEED PRE - DEVELOPMENT FLOWS FOR THE 10-YEAR EVENT. IT IS NOT ANTICIPATED THAT THIS PROJECT WILL IMPACT IN ANY WAY THE INCIDENCE, DEPTH OR DURATION OF FLOODING ON ADJACENT OR DOWNSTREAM PROPERTIES. 2) ACCORDING TO SURVEY PREPARED BY OTHERS, THIS TRACT CONTAINS NO WETLANDS OR OTHER AREAS OF ENVIRONMENTAL CONCERN. THIS PROJECT IS NOT ANTICIPATED TO HAVE ANY ADVERSE IMPACT ON OFFSITE WETLANDS OR VEGETATION. ast Guard Road Co O, Ri., 6 I, DAVID K. NEWSOM, HEREBY CERTIFY THAT THE STORMWATER TREATMENT SYSTEM SERVING BELL COVE VILLAGE WAS CON- STRUCTED IN SUBSTANTIAL COMPLIANCE WITH THE APPROVED CONSTRUCTION DRAWINGS. THIS CERTIFICATION IS BASED UPON PERIODIC INSPECTIONS MADE DURING AND FOLLOWING CON- STRUCTION OF THE PROJECT AND UPON "AS -BUILT" DATA PROVIDED BY THE CONTRACTOR. WHERE "AS -BUILT" CONDI-, TIONS DIFFER FROM THE DESIGN, THOSE DEVIATIONS ARE IN- DICATED HEREON BY CLOUDED TEXT . DAVID K. NEWSOM, PE CRYSTAL COAST ENGINEERING, PA Legend TEMPORARY GRAVEL CONSTRUCTION ENT/EXT O SODDING O MULCHING RIPRAP-LINED CHANNEL LEVEL SPREADER OUTLET STABILIZATION STRUCTURE EXCAVATED DROP INLET PROTECTION (TEMP) FABRIC DROP INLET PROTECTION (TEMP) �-=J BLOCK & GRAVEL INLET PROTECTION (TEMP) 13 TEMPORARY SEDIMENT TRAP SILT FENCE sf ROCK DAM Q CHECK DAM �-►- PROPOSED FINISH GRADE / PROPOSED TOP OF CURB GRADE PIPE LABEL !0 i TO -CIA here: C = 0.20 1=7.5in/hr A=2.93ac Q = 0. 20 x 7.5 x 2.9 3 010pre = 4.40 cfs VIOpre=2.0 fps(sheet flow) ost development Flow & Velocity II post development flows diverted to n-site infiltration systems designed to ccommodate first 2 inches of rainfall. verflow from infiltration system will ex' to via a 15" overflow pipe at 0.25% rude. Capacity of this outlet pipe is omputed at 3.30 cfs using Manning quation• outlet pipe discharges to a sgetated swale with adequate width to mintain velocity to 2.0 fps. 010post = 3.30 cfs N.C.G.S. MONUMENT ETaO NAD. 83 COa11DINAM hi 3N.163.1e31 FEET E- 2,50,38CI1084 FEET •L 0 E 0 LUo 00 N LO U Z ��STOP i7CHT SURVEY DATA & BASE MAP FURNISHED BY jorestigr 1110 011ru9Vin9, 10.2%. 501 WB MCLEAN BLVD, CAPE CARTERET, N.C. 28584 (252) 393-2129 STORMWATER DESIGN PREPARED BY CRYSTAL COAST ENGINEERING IS BASED UPON SURVEY PERFORMED AND PROVIDED BY OTHERS. ELEVATION CONTOURS BASED ON TOPOGRAPHIC SURVEY BY JOHN P. McLEAN ENGINEERING ASSOCIATES DATED APRIL 5, 1991. A TOPOGRAPHIC SURVEY OF THE ROAD CROSS SECTION AND SURROUNDING AREA WAS DONE BY ALAN BELL SURVEYING JANUARY, 2001. THE TWO TOPOGRAPHIC SURVEYS HAVE BEEN MERGED BY ALAN BELL SURVEYING. ELEVATIONS SHOWN ARE PER THE TOPOGRAPHIC SURVEY BY ALAN BELL SURVEYING. (EXAMPLE: + 12.1) THE SITE TOPOGRAPHY HAS NOT BEEN FIELD VERIFIED BY CRYSTAL COAST ENGINEERING, PA. OGUE SOUN Si NQ COAST GUARD ROAD Vicinity NORTK CR � DRIVE EMERALD DRIVE REE DRIVE Maq REVISIONS OCT. 15, 2004 PER TOWN OF EMERALD ISLE REVIEW EMER&D ISLE REEVIE � OF NOV. 30, 2004 REVISED ELEVATIONS SIQSM DRAINAGE DATA Q=CIA Where: C=0.80 1=7.5 AREA AREA PIPE 4N QE Q 4 D LA LEN G S,LQPE A 0.61 -0- 3.66 15 4 1.00 B 0.82 -0- 4.92 15 4 1.00 C 0.65 -0- 3.90 15 18 0.39 D 0.50 -0- 3.00 15 4 1.00 E 0.24 -0- 1.41 15 34 0.21 AREA AREA LEG SLOPE F 0.61 -0- 1.22 10 62 0.25 G 0.61 -0- 1.22 10 116 0.25 H 0.82 -0- 1.64 10 24 0.25 1 0.65 -0- 1.30 10 32 0.25 J 0.65 -0- 1.30 10 227 0.25 K 2.08 -0- 3.30 12 126 0.25 L 0.50 -0- 1.00 10 10 0.25 M 2.58 -0- 3.30 15 48 0.25 N 0.24 -0- 0.48 10 8 0.25 0 2.82 -0- 3.30 15 34 0.25 ALL PIPE BENEATH PAVEMENT SHALL BE RCP. ALL OTHER PIPE MAY BE RCP, 2-WALL HDPE OR SOLID ALUMINUM. PIPES 12' DIA OR LESS MAY BE PVC(C900). EROSION AND SEDIMENTATION Q Q) a1 0 0 C U-) I C ND C,4 cY Pr) •� LU Ian tj 0 4-+ Uj rn .� E of O m Li- u 0 = L1J Z t > O ]C u, 3 U*) o5 0 0Uj 0 U wM C _ Lu Q fu00 00 O V U io a O CONTROL NOTES; 1. Sediment control devices and structures shall be Installed, cc maintained and amended as needed to provide effective = ©p Z control of accelerated sedimentation until the contributing watersheds are stabilized. GZ Z 2. ConSeaueneec A. Notify Engineer, Owner and Land Quality Section prior p - '• �� 00 C.struction tL.. Q to beginning construction. B. Install stabilized construction entrances. C' oP C. Silt fence shall be installed at edge of clearing, on Oil TIC down slopes Immediately after area is cleared. Silt fence shall be maintained until the area is stabilized competely. 0. Construct retaining wall along rear property line . Rough grade site to appropriate aubgrade elevation. Install infil- tration systems and storm drainage Install inlet piping. protection devices where indicated. E. Fine grade and stabilize (seed and mulch) those areas not to be paved and/or built upon. Construct and stabilize (sod) vegetated filter (sod shall be pinned In place to prevent dis- lodgement). F. Maintain erosion control measures as needed to assure o full functionabiillty. G. Place ABC over compacted subgrods. Install asphalt surface course. U I H. Reseed and mulch shoulders and ditches. Install liners on ' all @wales (and provide ground cover an all exposed slopes.) ¢ PO4 I. Seed, fertilize, and mulch all disturbed areas within 15 days the of completing any phase of grading work. J. Permanent groundcover for all disturbed areas within 15 . f...( working days or no more than 90 calendar days following completion of construction. W 3.SmajAing SpagAflimtIons Apply lime and fertilizer and work Into 4-6 inches of sop. Seed mixture shall be distributed uniformly and covered with a clean V straw mulch. All mulch shall be crimped or asphalt tacked to help hold in place. Material and application rates are as follows: i atord 1 Application Rate W1.4 (� V Y L Lime 1000 lbs./ac. Fertillzer (10-10-10) 800 lbs./ac. - Mulch 1.5 tons/cc. Permanent Seeding a Q 0" 4 � � w (� Common Bermuda Z 0 (Unhulled Sept. 1 - April 1) 100 lbs./ac. !> L_ (Hulled April - Sept 1) 75 lbs./ac. Q 1� :3 "Rebel" Fescue 50 Ibs./ac. or o -6.+ Rye Grain (Sept. 1 - April 1 only) 30 Ibe./ac. 0 rT, W C German Millet (Apr& 1 - Sept. 1 only) 50 Ibe./ac. t O Temporary Seeding L, j Dec. 15 - April 1 J Koba Lespedezo 50 Ibs./ae. 0 w Rye Grain 100 Ibs./ac. April 15 - Sept. 1 W Q C German Millet 40 Ibs./ac. Sept. 1 - Dec. 15 IIt- L) d Lail 0 J Rye Grain 100 Ibs./ac. 0 = C1 4. Contractor is responsible for maintaining alli erosion control U m V'1 measures and amend measures as required to prevent from Z 0 mceleroted erosion taking place an this site. 5. Once all areas have been stabilized. contractor is to remove temporary Z Z Q N erosion control measures, regrade, & mulch to restabiltze these C areas. 5. For additional requirements, mo the approved erosion W and sedimentation permit. � U Fa- MM W O W NOTES: 1. P.I.N. 5383-10-36-0829 M _ 3. TOTAL AREA IN THIS SUBDIVISION= 2.93 ACRES (BY 0 I� 3 COORDINATE COMPUTATION). 4.) REFERENCE: M.B. 30. PG. 354, 143; M.B. 8, PG. 52; D.B. 730, LW PG. 993; D.B. 1005, PG. 374. 5.) FLOOD ZONE: ZONE X PER F.I.R.M. 37200538300J, DATED JULY Z 16, 2003. 0 6.) ALTHOUGH THIS SUBDIVISION ABUTS 404 WETLANDS, NONE W M EXIST WITHIN THIS SUBDIVISION. 0 7.) INFILTRATION SYSTEM DESIGN BASED UPON LAND AND SOILS of EVALUATION PREPARED BY LAND MANAGEMENT W GROUP,INC.,P.O. BOX 2522, WILMINGTON, N.C. 8.) TOTAL DISTURBED AREA = 3.1 AC. 9.) IMPERVIOUS SURFACE AREA - 92,549 SF (2.12 AC) w PERCENT IMPERVIOUS - 72.5X ,� J U I'� OWNER/DEVELOPER: COASTAL LAND VENTURES, INC. IVE 8201 Emerald Drive Emerald Isle, N.C. 28594 SCALE: 1 = 40 252-354-3830 DEC 0 1 2004 DATE: 9/27/2004 GRAPHIC SCALE DWQ P�,oJ # PROJECT: 04-0107 0 20 40 80 180 DRAWN BY: JC/DKN { IN FEET ) 1 inch = 40 ft. SHEET 1 /4 C ( r i isl rl ✓ i l v, , ! i II r : I + ! )4 +. i i € 1� I .I • '�.� � �I )• � ,r.. � ,' , �f I.'1 ��, I' i, � 1 � *, Li�: ..� ��F.t 1 '����r1�-,di'�. .i' ___ _ . _. � . � u _ _�___-..,�____.... �. i.- _ .. _ _ __ '--`__. .r y.. r_ -._._ .. ._ _ __-. _ __ � .. � � . .. __� . _ __�' �...���•].'i_esr-. ��i.iL}i-it $ill" L1J CL I1_ (U 4 L0 cv CO CD CU Lr) 0 LLI 3 Z LLI J U M to (V W U 0 Q_ d J U FNMRMUlmadsaweamaIram 12 QAIKIE 4 W aR 2'M4' MIUM MITE HOOKED OMna P1+vDles P Cwrems ON METihL Poste, OR FANIUM Cd1fe1 1D CEJIAR (R wow Paells IMbr ft s sT um MA" Kam WON" 1,DIE4 MEIIOIE S DOW IM M 1111Ei IS F&ACHIM on AM DIEC:ID ey McRC M 3'0' 0JU AL aRrDE - cum Hem( WL ANo TAW 110014' L. HEMU CAW s' O► w Ma TlMIICM. r MN" 11111 lull METAL, CEDAR OR 4 A4• T CAM Ia Posh AT e' off GEIm MA1MMl11. LIWR AND M W POQi SHOUD eE 3' DIV MINSIM Silt Fence Detail NO SCALE SMRMW6lgR SYSTEM MAINTENANCE P CONSTRUCTION OPERATIONS: 1) FOR PROPER OPERATION OF INFILTRATION SYSTEMS, IT IS IMPERATIVE THAT THEY BE PROTECTED FROM SEDIMENTATION DURING CONSTRUCTION. DURING CONSTRUCTION AND UNTIL SUCH TIME AS SITE IS STABLIZED WITH VEGETATION AND PARKING AREAS ARE PAVED, OWNER SHALL INSPECT ALL EROSION CONTROL DEVICES AFTER EVERY SIGNIFICANT RAINFALL EVENT (I.E., > j" PRECIP.). ALL OVERLOADED OR NON --FUNCTIONING EROSION/SEDIMENTATION DEVICES SHALL BE REPAIRED OR REPLACED. 2) DURING CONSTRUCTION, OWNER SHALL INSPECT INLET STRUCTURES AND REMOVE ACCUMULATED SEDIMENT AND/OR OTHER MATERIALS AFTER EVERY SIGNIFICANT RAINFALL EVENT OR ON A WEEKLY BASIS, WHICHEVER IS MORE FREQUENT. NORMAL OPERATIONS: 1) DURING NORMAL OPERATIONS, OWNER SHALL INSPECT INLET STRUCTURES AT 6 MONTH INTERVALS. ALL SEDIMENT SHALL BE REMOVED AT SUCH TIME SEDIMENT DEPTH EXCEEDS 9". SEDIMENT SHALL BE PROPERLY DISPOSED OF OFF-SITE- 2) DURING NORMAL OPERATIONS, OWNER SHALL INSPECT GREASE SEPARATOR AT 6 MONTH INTERVALS. ALL ACCUMULATED GREASE, OIL AND/OR OTHER FLOATABLES SHALL BE REMOVED AND PROPERTY DISPOSED OF OFF-SITE- 3) PARKING AREAS SHALL BE SWEPT AND/OR BLOWN AT 6 MONTH INTERVALS. ALL ACCUMULATED SWEEPINGS SHALL BE PROPERTLY DISPOSED OF OFF -SITE. IN CONJUNCTION WITH SWEEPING OPERATIONS, OWNER SHALL VISUALLY INSPECT PARKING AREAS FOR DAMAGED, LOOSE OR MISSING ASPHALT PAVEMENT. DAMAGED/MISSING ASPHALT SHALL BE REPAIRED. 4) CLIPPINGS FROM GRASS MOWING OPERATIONS SHALL BE COLLECTED AND REMOVED FROM THE SITE. ALL DEBRIS R SULTING FROM MAINTENANCE OF LANDSCAPING MATERIALS (TREE AND SHRUB CLIPPINGS) SHALL BE PROPERLY DISPOSED OF OFFSITE. VEGETATIVE WASTE MATERIALS SHALL BE PREVENTED FROM ENTERING STORMWATER SYSTEM. 5) AT FIVE YEAR INTERVALS, OWNER SHALL EMPLOY A REGISTERED ENGINEER OR OTHER DESIGN PROFESSIONAL TO EVALUATE THE CONDITION OF THE INFILTRATION SYSTEMS. THIS EVALUATION SHALL, AT A MINIMUM, CONSIST OF AN ON -SITE INSPECTION AND SHALL INCLUDE AN ASSESSMENT OF INFILTRATIVE CAPACITY OF EACH SYSTEM FOLLOWING A RAINFALL EVENT. ENGINEER SHALL PROVIDE CERTIFICATION THAT SYSTEM IS OPERATING WITHIN DESIGN PARAMETERS. 6) AT SUCH TIME INSPECTION REVEALS THAT INFILTRATION SYSTEM INFILTRATIVE CAPACITY HAS BEEN REDUCED TO j OF DESIGN CAPACITY, OWNER SHALL REPAIR AND/OR REPLACE INFILTRATION SYSTEMS AS MAY BE NECESSARY TO RESTORE INFILTRATIVE CAPACITY. EXISTING ROAD R/W , R/W 50' MIN. LENGTH CONSTRUCTION ENTRANCE PROFILE (SEE NOTE) I PLAN VIEW 1. as�signation Id4U3ea Wn No.22 ( 2- �� to - /21- U30A�TO crushed stone. 2. Lengyth - As effective, but not less than 50 foot. 3. ThlaWtooll - Not leg than six (6) Inches. 4. Width - Not less than fuss wWth of all points of Ingroos ar egress. Minimum of Ir. 5. washing - MB+erh neoeaarr wheals shill be cleaned to remove li on o�isin�p Ii or �r9WIrod, It steal be done an and area stabilized with gushed stone which drakes Into an approved sediment trap or sediment basin. Al sediment dt be waterc watercourse prevented use of sandbags, gravel. boards or or other approved methods. a. MakhHnonce -- The entrance shot be maintained In a condition which will Prevent tracking or flowing of sediment onto public rights -of -way. Thls may require periodic top dressing with additional stone as conditions demand and repair and/or aaonaut of any meaeune used to trap sediment Al sediment. W1119d. draPPb• washed or trodad onto public rights-of-woy must be removed Immediately. Temp. Construction Entrance NO SCALE 3000 P.S.L CONCRETE e' 1-IA* OCSC Superpave Type $9.5B 12 Ff "21L. 1. CURB AND CUTTER ONLY TO BE USED N AREAS SHOW ON PLANS 2. SPILL GUTTER TO BE USED IN AREAS VNERE Flow IS TO 00 AWAY FROM GUTTER. 3. CR M1 DROVES UNLESS GRADES MgICATE OTHERWISE. Curb & Gutter / Paving Detail '- NO SCALE WALK INOTH PER PLAN 3000 PSI CONCRETE SIDEWALK ASPHALT 1 1/2'..PERR RIOT 1/4"/FT. MIN. SLOPE ITN OPE e•"_ GXe-IQ/10 wwM ; war' -rr Combination Curb/Sidewalk NO SCALE \ i N \ ` I xl5.i xi5.2 f 1 \ 1 oanAawim \ J \ \\ 1 LIMIT wetland \ l ..10DISTURSANa �\ xt? Lar \ �I1.4 NESkI•iIARDW4RE CLOTH •f• MM New 1111111111 0M B' X 16• CONCRETE BLOCK TCH BASIN! ---------- TEMP. CONSTk ENTRANCE L kD I k 1) THIS PROJECT HAS BEEN DESIGNED SUCH THAT POST DEVELOPMENT STORMWATER ROWS DO NOT EXCEED PRE - DEVELOPMENT FLOWS FOR THE 10-YEAR EVENT. IT IS NOT ANTICIPATED THAT THIS PROJECT WILL IMPACT IN ANY WAY THE INCIDENCE, DEPTH OR DURATION OF FLOODING ON ADJACENT OR SECTION A - A DOWNSTREAM PROPERTIES. 2) ACCORDING TO SURVEY PREPARED BY OTHERS, THIS TRACT CONTAINS NO WETLANDS OR OTHER AREAS OF ENVIRONMENTAL Block &Gravel Inlet Protection CONCERN. ANTICIPATED ANY IMPACT ON OFFSITEOFFSITEFSITE WETLANDS OR VEGETATION. NO SCALE �'' .y' ,' �•• ili VASHED STONE PLAN . '. ,. ,::�, � 1�►MIRDWARE CLDTH ❑ ❑❑ ❑❑ ❑❑ ❑ STAfE���.-' 09ast Guard Road 60' fZ%W I, DAVID K,, NEWSOM, HEREBY CERTIFY THAT THE STORMWATER TREATMENT SYSTEM SERVING 13ELL COVE VILLAGE WAS CON- STRUCTED IN SUBSTANTIAL COMPLIANCE WITH THE APPROVED CONSTRUCTION DRAWINGS. THIS CERTIFICATION IS BASED UPON PERIODIC INSPECTIONS MADE DURING AND FOLLOWING CON- STRUCTION OF THE PROJECT AND UPON `AS -BUILT" DATA PROVIDED BY THE CONTRACTOR. WHERE "AS -BUILT" CONDI- TIONS DIFFER FROM THOSE DEVIATIONS ARE IN- DICATED HEREON SY C U D TEXT . DAVID K. NEWSOM, PE CRYSTAL COAST ENGINEERING, PA Legend TEMPORARY GRAVEL CONSTRUCTION ENT/UT SODDING O MULCHING NO RIPRAP-LINED CHANNEL e11141* LEVEL SPREADER OUTLET STABILIZATION STRUCTURE EXCAVATED DROP INLET PR07ECTION (TEMP) ® I FABRIC DROP MET PROTECTION (TEMP) BLOCK A GRAVEL NLET PROTECTION (TEMP) TEMPORARY SEDIMENT TRAP SILT FENCE sf- ROCK DAM 1 CHECK DAM ♦ ♦, PROPOSED FINISH GRADE PROPOSED TOP OF CURB GRADE PIPE LABEL ft ` If 110-CIA where: C = 0.20 1= 7.5 i n/ h r A = 2.93 ac 0 - 0.20 x 7.5 x 2.93 QIW* . 4.40 tfs VIOpn=2.0 fps(sheet flow) 111 post development flows diverted to n-site Infiltration systems designed to accommodate first 2 Inches of rainfall. 1veMow from infiltration system will exi ite via a 15" overflow pipe at 0.25% lade. Capacity of this outlet pipe is ,amputed at 3.30 cfs using Manning :quation. Outlet pipe discharges to a Iegetated swale with adequate width to naintain velocity to 2.0 fps. 010post = 3.30 cfs 1 _> •L LI W u� 0 00 L ! U Z STOP uGHT �I it I SPECIAL NOTE CONCERNING SURVEY STORMWATER DESIGN PREPARED BY CRYSTAL COAST ENGINEERING IS BASED UPON SURVEY PERFORMED AND PROVIDED BY OTHERS. ELEVATION CONTOURS BASED ON TOPOGRAPHIC SURVEY BY JOHN P. McLEAN ENGINEERING ASSOCIATES DATED APRIL 5, 1991. A TOPOGRAPHIC SURVEY OF THE ROAD CROSS SECTION AND SURROUNDING AREA WAS DONE BY ALAN BELL SURVEYING JANUARY. 2001. THE TWO TOPOGRAPHIC SURVEYS HAVE BEEN MERGED BY ALAN BELL SURVEYING. ELEVATIONS SHOWN ARE PER THE TOPOGRAPHIC SURVEY BY ALAN BELL SURVEYING, (EXAMPLE: + 12.1) THE SITE TOPOGRAPHY HAS NOT BEEN FIELD VERIFIED BY CRYSTAL COAST ENGINEERING, PA. 40 REVISIONS NORTK OCT. 13, 2004 PER 70101 of EMERALD ISO£ REVIEW GUE SOON CR S i DRIVE EMERALD DRIVE COAST GUARD R ROAD DRIVE Vicinity Map 5TORM DRAINAGE Q=CIA DATA Where: C-0.80 1-7.5 AREA AREA eff ON QEE Q1Q M LEdSa: SLQ A 0.61 -0- 3.66 15 4 1.00 B 0.82 -0- 4.92 15 4 1.00 C 0.65 -0- 3.90 15 1a 0.39 D 0.50 -0- 3.00 15 4 1.00 E 0.24 -0- 1,41 15 34 0,21 AREA AREA M ON QEE fl14 IIIB LEND SLOPE F 0.61 -0- 1.22 10 62 0.25 G 0.61 -0- 1.22 10 116 0.25 H 0.82 -0- 1.64 10 24 0.25 1 0.65 -0- 1.30 10 32 0.25 J 0.65 -0- 1.30 10 227 0.25 K 2.08 -0- 3.30 12 126 0.25 L 0.50 -0- 1.00 10 10 0.25 M 2.58 -0- 3.30 15 48 0.25 N 0.24 -0- 0.48 10 a 0.25 0 2.82 -0- 3,30 15 34 0.25 ALL PIPE BENEATH PAVEMENT SHALL BE RCP. ALL OTHER PIPE MAY BE RCP, 2-WALL HDPE OR SOLID ALUMINUM. PIPES 12' DIA OR LESS MAY BE P VC(C900). EROSION AND SEDIMENTATION CONTROL NOTES: I. Sediment control devices and structures sholl be Installed. maintained and amended as needed to provide effective control of accelerated sedimentation unti the contributing watersheds are stabilized. 2. A. Notify Engineer, Owner and Land quality Section prior to bbnnqqzoNo ctlon true Inst. entrances, C. Sit hap shall be installed at edge of clearing, an all down slopes immad"!:j'y after area Is cleared. Sit Woo shall be maintained untOl the area is stabilized compstaly. 0. Construct retaining rapwall donate pbgrreaar property lime . Rough alte to lretlan systems and storm drainage 1pipingg. Install inlet protection do*" where Indicated. E. Fine grade and stabilize (end and mulch) those areas not to be paved and/or built upon. Construct and stabilize (sod) vegetated liter (sod shop be pinned In place to prevent dis- [adbtain erogerinant}. F. Mosion control msasures as needed to assure full functlonability. G. Place ABC over compacted sub¢ade• Instal asphalt surface course. N. Reseed and mulch shoulders and ditch*& Install liners an all "alas (and provide ground cover on all exposed slopes.) 1. Seed, fsrtllm and mulch all disturbed areas within 15 days of completing any Phase of the grading work. 41. Permanent groundeover for all disturbed areas within 15 working days or no more than 00 calendar days fallowing completion of construction. 3. izer and work Into 4-6 inches of m Ptun andinbe dhtrWted uniformly and covered with o dean straw mulch. All much shall be crimped or asphalt tacked to help hold In pkace, Material and appikx m rates an as follows: IMstsdel AQWiGaiWLgate Lime t 00o Ibs./arc. Fertilizer (10-10-10) a00 lbs./ac. M1ddn 1.5 tons/oar moron Bermuda (Unhuled Sept. I - April 1) 100 Ibs./ac. (Hulled April - Sept. 1) 75 lbs./arc. 'Rebel' Fescue 50 Ibs./oar Rye train (Sept. 1 - April 1 only) 50 Ibs./ac. German Millet (Apra 1 - Sept. I only) 50 Ibs./arc. Dec. 15 -Agri 1 Kobe Leepedeaa 50 Ibs./oc. Rye Groin I00 lbs./arc. ApH 15 - Sept. I German Millet 40 lbs./ao. Sept. 1 - Dee 15 Rye :rain 100 Ibs./ac. 4. Contractor Is reepanebie for maintaining all erosion control measurer and amend measures as required to prevent accelerated erosion from taking plop an this sits. 5. Once all reae have been stabilized, contractor is to remove teRlparary erosion control measures, regrode, & mulch to restabilze thess areas. 6. For additional requirements, eve the apprvvwd roston and sedimentation permit. NOTES: 1. P.I.N. 5383-10-36-0829 2. ZONING- 83 3. TOTAL AREA IN THIS SUBDMSION- 2.93 ACRES (BY COORDINATE COMPUTATION). 4.) REFERENCE: M.B. 30, PG. 364, 143, M.B. 8. PG. 52, D.B. 730. PG. 993. D.B. 1005. PG. 374. 5.) FLOOD ZONE: ZONE X PER F.I.R.M. 37200538300J, DATED JULY 16, 2003. 6.) ALTHOUGH THIS SUBDIVISION ABUTS 404 WETLANDS, NONE EXIST WITHIN THIS SUBDIVISION. 7.) INFILTRATION SYSTEM DESIGN BASED UPON LAND AND SOILS EVALUATION PREPARED BY LAND MANAGEMENT GROUP,INC.,P.O. BOX 2522, WILMINGTON. N.C. 8.) TOTAL DISTURBED AREA - 3.1 AC. 9.) IMPERVIOUS SURFACE AREA - 92,549 SF (2.12 AC) PERCENT IMPERVIOUS - 72.5X 1 S O�V_NER/DEVELOPER: COASTAL LAND VENTURES, INC. 11 8201 Emerald Drive J Emerald Isle, N.C. 28594 252- 354- 3830 GRAPHIC SCALE 0 20 40 1110 100 ( IN FEET ) I inch - 40 ft~ Q L (O O 0 O C Ul I C 'C UJ N M •L LLI C LLI C CP rO 0 to m U •s1••� (n v . Y (O 3 a O 1 U 1 8� C � M c ur` o _... C) 4-J C 00 � V U a W . f.. j o W *d V) Y LIJ 0.4 o O V J two r 0o� 0 U F 0 W I LLd � 0 e l� a w � GU U 0 0 C fn C O j 0 CC C LLI JM CL SCALE: 1 " = 40' DATE: 9/27/2004 PROJECT: 04--0107 DRAWN BY: JC/DKN SHEET 1/4 ; . ''. S � f ,l. „ sr S � � r'r•�:}. Lr��u; nit-� •gig '✓ 17'1 ?.j'�ri .rr,=Fr��'.i L%: � �-.. � -�_ _sl.�.:,_._.' T..._t�`_e__ `---':_a. _.. ,.._ _ .'i �._ _... ... ..1'i: � _ .. .,. ...._ . .,_._,�:i �S.�.�.'•.�.�ih,�:�!I.;:tiLi.''11i.. �;:5 is_ .,!'.�._"�: n.�_I F- Ld Q ir) O CD CD (v C/�D1) 70 N Ui d 4 Cn 3 �J U (i1 PA CD CD CU U J 12 OAUOE 4'14' ol! 2 Xe +AELDED WE HOG= ONTO PREFORIKp C�lM - - METAL POSTS, OR FASTEM TO cim OR w000 POSTS wITH No, a STAPLES. ULTRAM U PIESISTIM to I~ I'ABRIC OR EOUIYeLENr TO HIRE WITH TALTAL CLIPS OR INK AT a' OFF CENTER. • WA1pMRM SEOMMIT STORMOE LORL REMOVE lJEAMIEUT W*X TM U NEL IS REAOMM / OR AS OMKCTEO By INSPECTOR NAr M L ORAOE - OOM VKH SOL AM TAMP MACKIML ' CAIW 6' OF WFIF RM TRUM. 2' MINIM METAL OEOM OR 4 W TREA M e1000 PM AT e' OFF CEMER MAhIRRLM. CEOAR AND N400 POSTS WNW SE s OM (@MMe1M. Silt Fence Detail NO SCALE STORMWATER SYSTEM MAINTENANCE PLAN CONSTRUCTION OPERATIONS: 1) FOR PROPER OPERATION OF INFILTRATION SYSTEMS, IT IS IMPERATIVE THAT THEY BE PROTECTED FROM SEDIMENTATION DURING CONSTRUCTION. DURING CONSTRUCTION AND UN71L SUCH TIME AS SITE IS STABLIZED WITH VEGETATION AND PARKING AREAS ARE PAVED, OWNER SHALL INSPECT ALL EROSION CONTROL DEVICES AFTER EVERY SIGNIFICANT RAINFALL EVENT (I.E.. > j" PRECIP.). ALL OVERLOADED OR NON-FUNCTIONING EROSION/SEDIMENTATION DEVICES SHALL BE REPAIRED OR REPLACED. 2) DURING CONSTRUCTION, OWNER SHALL INSPECT INLET STRUCTURES AND REMOVE ACCUMULATED SEDIMENT AND/OR OTHER MATERIALS AFTER EVERY SIGNIFICANT RAINFALL EVENT OR ON A WEEKLY BASIS, WHICHEVER IS MORE FREQUENT. NORMAL OPERATIONS: 1) DURING NORMAL OPERATIONS, OWNER SHALL INSPECT INLET STRUCTURES AT 6 MONTH INTERVALS. ALL SEDIMENT SHALL BE REMOVED AT SUCH TiME SEDIMENT DEPTH EXCEEDS 9". SEDIMENT SHALL BE PROPERLY DISPOSED OF OFF -SITE. 2) DURING NORMAL OPERATIONS, OWNER SHALL INSPECT GREASE SEPARATOR AT 6 MONTH INTERVALS. ALL ACCUMULATED GREASE, OIL AND/OR OTHER FLOATABLES SHALL BE REMOVED AND PROPERTY DISPOSED OF OFF -SITE. 3) PARKING AREAS SHALL BE SWEPT AND/OR BLOWN AT 6 MONTH INTERVALS. ALL ACCUMULATED SWEEPINGS SHALL BE PROPERTLY DISPOSED OF OFF -SITE. IN CONJUNCTION WITH SWEEPING OPERATIONS, OWNER SHALL VISUALLY INSPECT PARKING AREAS FOR DAMAGED, LOOSE OR MISSING ASPHALT PAVEMENT. DAMAGED/MiSSING ASPHALT SHALL BE REPAIRED. 4) CLIPPINGS FROM GRASS MOWING OPERATIONS SHALL BE COLLECTED AND REMOVED FROM THE SITE. ALL DEBRIS RESULTING FROM MAINTENANCE OF LANDSCAPING MATERIALS (TREE AND SHRUB CLIPPINGS) SHALL BE PROPERLY DISPOSED OF OFFSITE. VEGETATIVE WASTE MATERIALS SHALL BE PREVENTED FROM ENTERING STORMWATER SYSTEM. 5) AT FIVE YEAR INTERVALS, OWNER SHALL EMPLOY A REGISTERED ENGINEER OR OTHER DESIGN PROFESSIONAL TO EVALUATE THE CONDITION OF THE INFILTRATION SYSTEMS. THIS EVALUATION SHALL, AT A MINIMUM, CONSIST OF AN ON -SITE INSPECTION AND SHALL INCLUDE AN ASSESSMENT OF INFILTRATIVE CAPACITY OF EACH SYSTEM FOLLOWING A RAINFALL EVENT. ENGINEER SHALL PROVIDE CERTIFICATION THAT SYSTEM IS OPERATING WITHIN DESIGN PARAMETERS. 6) AT SUCH TIME INSPECTION REVEALS THAT INFILTRATION SYSTEM INFILTRATIVE CAPACITY HAS BEEN REDUCED TO I OF DESIGN CAPACITY, OWNER SMALL REPAIR AND/OR REPLACE INFILTRATION SYSTEMS AS MAY BE NECESSARY TO RESTORE INFILTRATIVE CAPACITY. EXISTING ROAD R/W CONSTRUCTION ENTRANCE PROFILE R/W PLAN VIEW conatrurlion Specifications 1. Stone size - Use MSHA size No. 2 (2-1/2• to 1") or AASHTO designation M43, size No. 2 ( 2-1/2' to 1-1/2•). Use crushed stone. 2. Length - As effective, but not less than 50 fast 3. Thicknep - Not Ion than six (6) inches. 4. Width - Not less than full width of ail points of ingress or egress. Minimum of 12'. 5. Washing -When necessary, wheels @hall be cleaned to remove sediment prior to entrance onto public right-of- way. Wien washing is required. it shall be done on an area stabilized with crushed *tans which drains into an approved sediment trap or sediment basin. All sediment shall be prevented from entering any storm drain. ditch, or watercourse through use of sandbags, gravel, board* or other approved methods 6. Maintenance - The entrance shill be malntokt In a condition which will prevent tracking or flowing of sediment onto public rights -of -way. This may require periodic top dressing with additional stone as conditions demand and repair and/or deanout of any measures used to trap sediment. All sediment, spilled, dropped. washed or tracked onto public rights -of -way must be removed Immediately. Temp. Construction Entrance NO SCALE 3D00 P.S.I. CONCRETE 6• .':. 6• 7- 1-1/2- BCSC Supw"vs Type $9.58 is >}• CASC 12• �1.j.....� ice.: ' __. � •.� ?/' - COMPACTED SUBGRADE CABC F_IIH WILL 1. CURB AND GUTTER ONLY TO BE USED IN AREAS SHOWN ON PLANS 2. SPILL GUTTER TO BE USED IN AREAS WHERE FLOW IS TO GO AWAY FROM GUTTER. 3. CROWN DRIVES UNLESS GRADE$ INDICATE OTHERWISE. Curb & Gutter / Paving Detail WALK(WIDTH PER PLAN 3000 PS CONCRETE 90EwALK ASPHALT 1/4•I MN. SLOPE 1 611 WWM BULDNG Combination Curb/Sidewalk NO SCALE \ ti I // ! x154 `x1 5.2 \ 1 ti�g xis`/(9 ' N1t3145 953-E DISTURBANCE ELL, LIMIT Wetland I \\\ ` � J � •o \j � \\ \ \ ! I I / DISTURBANCTL T / \ x LIMIT\ C��GREASEANL Wrtland 11 4 - _ ...•• -- ZJu AM N w 90.00• POMP IMF "M -------_- _-.--------- 14ESIt �1MI111Y ORE CLOTH F __11EME111011EM MEENEENE1 NEEN MEN �' 1l� VASFIEIS STONE '�: ''` •. PLAN DWARE CLOTH SECTION A -A Block & Gravel Inlet Protection NO SCALE R W,- C� - T�• p, 1) THIS PROJECT HAS BEEN DESIGNED SUCH THAT POST DEVELOPMENT STORMWATER FLOWS DO NOT EXCEED PRE - DEVELOPMENT FLOWS FOR THE 10-YEAR EVENT. IT IS NOT ANTICIPATED THAT THIS PROJECT WILL IMPACT IN ANY WAY THE INCIDENCE, DEPTH OR DURATION OF FLOODING ON ADJACENT OR DOWNSTREAM PROPERTIES. 2) ACCORDING TO SURVEY PREPARED BY OTHERS, THIS TRACT CONTAINS NO WETLANDS OR OTHER AREAS OF ENVIRONMENTAL CONCERN. THIS PROJECT IS NOT ANTICIPATED TO HAVE ANY ADVERSE IMPACT ON OFFSITE WETLANDS OR VEGETATION. coast Guard Road 6o' R/S A _r vv I, DAVID K. NEWSOM, HEREBY CERTIFY THAT THE STORMWATER TREATMENT SYSTEM SERVING BELL COVE VILLAGE WAS CON- STRUCTED IN SUBSTANTIAL COMPLIANCE WITH THE APPROVED CONSTRUCTION DRAWINGS. THIS CERTIFICATION IS BASED UPON PERIODIC INSPECTIONS MADE DURING AND FOLLOWING CON- STRUCTiON OF THE PROJECT AND UPON "AS -BUILT" DATA PROVIDED BY THE CONTRACTOR. WHERE "AS -BUILT" CONDI- TIONS DIFFER FROM THE DESIGN, THOSE DEVIATIONS ARE IN- DICATED HEREON BY CLOUDED TEXT . DAVID K. NEWSOM, PE CRYSTAL COAST ENGINEERING, PA Legend TEMPORARY GRAVEL CONSTRUCTION ENT/tXT SODDING O MULCHING O RiPRAP-LINED CHANNEL ye�� LEVEL SPREADER OUTLET STABILIZATION STRUCTURE EXCAVATED DROP INLET PROTECTION (TEMP) Q FABRIC DROP INLET PROTECTION (TEMP) BLOCK d< GRAVEL INLET PROTECTION (TEMP) TEMPORARY SEDIMENT TRAP SILT FENCE -of ROCK DAM Q CHECK DAM♦ -►- PROPOSED FINISH GRADE PROPOSED TOP OF CURB GRADE PIPE LABEL "A91 10-CIA ,here: C - 0.20 17.5in/hr A 2.93 cc 0 = 0.20 x 7.5 x 2.93 010pre = 4.40 cfs V10pre-2.0 fps(sheet flow) oak development Flow dt Velocity A post development flows diverted to n-site infiltration systems designed to ccommodate first 2 inches of rainfall. Iverflow from infiltration system will exi Its via a 15" overflow pipe at 0.25% rode. Capacity of this outlet pipe is omputed at 3.30 cfs using Manning quatlon. Outlet pipe discharges to a egetated Swale with adequate width to Taintain velocity to 2.0 fps. Q10post = 3.30 cfs R.CA.S. waloam END NA0. 13 000Ie110M R. 33@,1 @3.1 @31 FEET E- L502.3@4.00154 FEET V Z V&TOP LIGHT STORMWATER DESIGN PREPARED BY CRYSTAL COAST ENGINEERING IS BASED UPON SURVEY PERFORMED AND PROVIDED BY OTHERS. ELEVATION CONTOURS BASED ON TOPOGRAPHIC SURVEY BY JOHN P. McLEAN ENGINEERING ASSOCIATES DATED APRIL 5, 1991. A TOPOGRAPHIC SURVEY OF THE ROAD CROSS SECTION AND SURROUNDING AREA WAS DONE BY ALAN BELL SURVEYING JANUARY, 2001. THE TWO TOPOGRAPHIC SURVEYS HAVE BEEN MERGED BY ALAN BELL SURVEYING. ELEVATIONS SHOWN ARE PER THE TOPOGRAPHIC SURVEY BY ALAN BELL SURVEYING. (EXAMPLE: + 12.1) THE SITE TOPOGRAPHY HAS NOT BEEN FIELD VERIFIED BY CRYSTAL COAST ENGINEERING, PA. COAST GUARD ROAD Vicinity Ma STORM DRAIN69E Q=CIA DATA Where: C=0.80 1-7.5 AREA AREA eff ON QFE g1Q M LENG SLOP A 0.61 -0- 3.66 15 4 1.00 B 0.82 -0- 4.92 15 4 1.00 C 0.65 -0- 3.90 15 18 0.39 D 0.50 -0- 3.00 15 4 1.00 E 0.24 -0- 1.41 15 34 0.21 AREA AREA Ten Qhl Qf E Q14 M LENGTH SI EE F 0.61 -0- 1.22 10 62 0.25 G 0.61 -0- 1.22 10 116 0.25 H 0.82 -0- 1.64 10 24 0.25 1 0.65 -0- 1.30 10 32 0.25 J 0.65 -0- 1.30 10 227 0.25 K 2.08 -0- 3.30 12 126 0.25 L 0.50 -0- 1.00 10 10 0.25 M 2.58 -0- 3.30 15 48 0.25 N 0.24 -'-0- 0,48 10 8 0.25 0 2.82 -0- 3.30 15 34 0.25 ALL PIPE BENEATH PAVEMENT SHALL BE RCP. ALL OTHER PIPE MAY BE RCP, 2-WALL HOPE OR SOLID ALUMINUM. PIPES 12' DIA OR LESS MAY BE PVC(C900). EROSION AND SEDIMENTATION ® NOiFaTK REVISIONS OCT. 15. 2004 PER TOWN OF EMERALD ISLE REVIEW NOV. 1, 2004 PER TOWN OF EMERALD ISLE REVIEW r�r NOV. 30, ZOD4 REVISED ELEVATIONS CREW DRIVE EMERALD DRIVE _BM__ DRIVE 0 LD CONTROL NOTES: 1. Sediment control devlca and structures shall be Installed. maintained and amended as needed to provide effective can" of accelerated sedimentation until the contributing watersheds are stabilized. 2. A. Notify Engineer, Owner and Land Gudity Section prior to beginning construction. B. Install stabilised construction entrances. C. Slit fence shall be installed at edge of d ' Ing, on all down Mopes Immedlatel after area is d ed. Silt fence shall be maintained until the area is et illzed urn telly. D. Construct retaining wall along rear prop y line . Rough grade site to appropriate subgrade elevation. Install Infil- trotion systems and @term drainage piping. Install Inlet protection devices where Indicated. E. Fine grode and stabilize (seed and mulch) those areas not to be paved and/ar built upon. Construct and stabilize (sod) vegetated filter (sod @hall be pinned in place to prevent dis- lodgemen0. F. Maintain wvsbn control measures as needed to assure full functlonablRity. C. Place ABC over compacted subgrods. Install asphalt surface course. H. Reseed and mulch shoulders and ditches. Install linen an all swales (and provide ground cover on all ehq►osed slopes.) I. Seed, fertilize, and mulch all disturbed areas within 15 days of completing any phase of the grading work. J. Permanent groundcover for all disturbed areas within 15 working days or no more than 90 calendar days following completion of construction, 3. Apply Irne and fertilizer and work into 4-6 Inches of soil. Seed mixture @hall be distributed uniformly and covered with a dean strow mulch. All mulch shall be crimped or asphalt tacked to help hold In place. Material and application rate@ are as follows: maiKizil AnalkmHen Rate Lima 1000 lbs./ac. Fertilizer (10-10-10) 600 lbs./ac. Mulch 1.5 tans/oc. Perrnmat ARE" Common Bermuda (Unhufled Sept. 1 - April 1) 100 ibs,/ac. (Hulled April - Sept. 1) 75 lbs./ac. "Rebel' Foams 50 lbs./ac. Rye Grohs (Sept. 1 - April 1 only) 50 lbs./oc. German Millet (April 1 - Sept. 1 only) 50 lbs./ac. Dec 15 - April 1 Kobe Lespedeta 50 lbs./ac. Rye Grain 100 lbs./ac. April 15 - Sept. 1 German Millet 40 lbs./oc. Sept. 1 - Dec. 15 Rye Grain 100 lbs./ac. 4. Contractor Is responsible for maintalning dill erosion control measures and amend measures oe required to prevent accelerated erosion from taking plum an this sits. 5. Once oil areas have been stabilized, contractor is to remove temporary erosion control measures, regrode, ik mulch to restablilts these areas. 6. For additional requirements, we the approved erosion and sedimentation permit, NOTES: 1. P.I.N. 5383-10-36-0829 2. ZONING= B3 3. TOTAL AREA IN THIS SUBDIVISION- 2.93 ACRES (BY COORDINATE COMPUTATION). 4.) REFERENCE: M.B. 30. PG. 364. 143; M.B. 8. PG. 52; D.B. 730, PG. 993; D.B. 1005, PG. 374. 5.) FLOOD ZONE: ZONE X PER F.I.R.M. 37200538300J, DATED JULY 16, 2003. 6.) ALTHOUGH THiS SUBDIVISION ABUTS 404 WETLANDS, NONE EXIST WITHIN THIS SUBDMSiON. 7.) INFILTRATION SYSTEM DESIGN BASED UPON LAND AND SOILS EVALUATION PREPARED BY LAND MANAGEMENT GROUP,INC.,P.O. BOX 2522, WILMINGTON, N.C. 8.) TOTAL DISTURBED AREA = 3.1 AC. 9.) IMPERVIOUS SURFACE AREA - 92,549 SF (2.12 AC) PERCENT IMPERVIOUS - 72.5% WN R P R COASTAL LAND VENTURES, INC. 8201 Emerald Drive Emerald Isle, N.C. 28594 252-354-3830 GRAPHIC SCALE a 20 40 so 160 ( IN FEET ) i inch - 40 ft. IN Q 1 u, o (D rn o C ©1 Ln E 00 N C N 1n • L LLJ .� U Q 0 In W La0 C U 3 t W &0 z } .�.J (V Y 3 0 (� Cp O U .5 u1 wN W C W Cc L`_ O for v rn 4-J V] C Ill l _ > r� O U a 06 no ) J 0 12 0 crs� Ld U1 3 � 0 (ill �✓ U t5 ��y W Q Z ~ 4� I> C1 o ©w U t J iI� 0o� Z U U _ V) 3 Z F--� O !� O Z W � Q P� 3 W to � O (i) X W CU C 0 WOf "a0 < C CL v M .�.I a_ v 4a v U SCALE: 1 " = 40 DATE: 9/27/2004 PROJECT: 04-0107 DRAWN BY: JC/DKN SHEET 1 /4 ,e REVISIONS ww. w =4 REVISER ELEVAnm WN. 30, 2OD4 REVISED ELEVATIONS I- W Q crs M t` �r 0 0 N O fM 1-4 oi3 Qj In >, (n 0 4' N CD 3 U N GQ 0 O 0j 0 -P U n, 0 L a d i U SYSTEM 3 DRAINAGE AREA ar r J 3 ac g 'AI • O N I RETAIL I 10, 034.S.E I - -- -� aVII r r I C14G W I r(-SIS, 3 ORANAOE AREA I# 3 / r C 10' WALK jUbNTION MH TO -19 r -P INV-16.69 SYSTEM 3 DUNAGEjjNFILj3A�ONjSj$TE0 I I 1 S" IN T r I 5 SIDEWALK .---- -- - - -w-- -w...._...,.,...__._ \SYSnM 3 I 1 / DRAMWE AREA Coast Guard Road 604 R/VV PLAN - SYSTEM 3 SCALE: 1 = 40' SYSTEM 3 DESIGN CRITERIA Total Impervious Surface Area (BUA) - 23,933 sf Drainage Area - 28,530 of % Impervious (1) - 83.89% Rv = 0.05 + 0.0090(I) = 0.8050 Required Storage Volume* = Drainage Area x Rv x 2"/12 = 3,828 cf * based upon Emerald Isle Requirement for retaining first 2" rainfall Infiltration System Volume X sectional Area of Trench = 3.5(height) x 21(width) = 73.5 of X sectional Area of Pipes = 7.07 of x 3 pipes = 21.2 of X sectional Area of Voids = (73.5 of -- 21.2 sf)0.35* = 18.3 cf/ft * Void Ratio - 35X Unit Volume = 21.2 sf + 18.3 of = 39.5 cf/ft Required Minimum Length = 3,828 cf/39.5 cf/ft = 96.9' (97' Provided) F SYSTEM ELEV. 1 . I BOTTOM OF SYSTEM 'UNgj5MRjED Sy T NON -WOVEN GEO- TEXTILE FILTER FABRIC SHW'i> -ELFV- 13.0' NOTES: 1, INFILTRATION AND MANIFOLD PIPES SHALL BE CORREGATED ALUMINUM PIPE (CONTECT "CORLIX LOCKSEAM" OR EQUAL. INFILTRATION PIPE SHALL BE PERFORATED (0.25' MIN DIA). MANIFOLD PIPES SHALL BE SOLID. ALL CONNECTIONS SHALL BE FACTORY WELDED OR FACTORY FURNISHED JOINTS. 2. STONE USED IN INFILTRATION TRENCHES SHALL BE CLEAN WASHED NO. 57 STONE. 3. GEOTEXTILE FABRIC SHALL BE CONTECH NON -WOVEN C-60NW OR EQUAL. WASHE STONE NON -WOVEN GEO- TEXTILE FILTER FABR 97' BASE COURSE r� 36 C.M.P. 36 C.M.P. (ALL PIPES) (ALL PIPES) 3 AREA INLET STRUCTURE TOP-19.40 15" INV OUT-15.71 WEIR ELEV-18.00 10" INV OUT-16.77 211-aw 4'-6" 6'-0' 6'-0" 4'-6" WASHED -STONE 15' CMP INLET LONGITUDINAL SECTION NO SCALE SHWT- ELEV. 13.0' CROSS SECTION NO SCALE INLET STRUCTURE (SEE DETAIL) 10 BY PASS JUNCTION MH TOP-19.54 INV-15.81 INLET STRUCTURE TOP-19.40 15" INV OUT-15.71 x3i.4 _ WEIR ELEV-18.03 10" INV OUT--15.83 PROP. RET WALL - TOP 1 J (bE l ey pTM S (DESIGN BY O l 0 /jam. RESTAI-- 3. r 't' vi ARCH JUNCTION MH TOP-19.81 INV-16.12 f MpS�R r SYSTEM 4 "DRAINAGE AREA r J00 BY- 4 AREA 1--- J LL: ws 1 _oC141 � RETAIL J 4. - .� � SYSTEMI 4 W f I DRAINAGE AREA . e r / 1n' WAIle , ' ow INFILTRATION SYSTEM LENGTH -I Oa'/WIDTH-15' PLAN -- SYSTEM 4 SCALE: 1 = 40 SYSTEM 4_ DESIGNCRITERIA Total Impervious Surface Area (BUA) - 18,587 of Drainage Area - 21,656 sf 9 Impervious (1) - 85.83' Rv = 0.05 + 0.0090(I) = 0.8225 Required Storage Volume* = Drainage Area x Rv x 2"/12 = 2,969 cf * based upon Ernerald Isle Requirement for retaining first 2" rainfall Infiltration System Volume X sectional Area of Trench 3.5(height) x 15(width) = 52.5 of X sectional Area of Pipes = 7.07 of x 2 pipes = 14.1 of X sectional Area of Voids (52.5 of - 14.1 sf)0.35* = 13.4 cf/ft * Void Ratio i 35X Unit Volume = 14.1 sf + 13.4 of = 27.5 cf/ft Required Minimum Length = 2,969 cf/27.5 cf/ft = 107.9' (108' Provided) INLET STRUCTURE (SEE DETAIL) WASHED 1 STONE 15" CMP INLET IO BY PASS NOTES: 1. INFILTRATION AND MANIFOLD PIPES SHALL BE CORREGATED ALUMINUM PIPE (CONTECT "CORLIX LOCKSEAM" OR EQUAL. INFILTRATION PIPE SHALL BE PERFORATED (0.25' MIN DIA). MANIFOLD PIPES SHALL BE SOLID. ALL CONNECTIONS SHALL BE FACTORY WELDED OR FACTORY FURNISHED JOINTS. 2. STONE USED IN INFILTRATION TRENCHES SHALL BE CLEAN WASHED NO. 57 STONE. 3. GEOTEXTTLE FABRIC SHALL BE CONTECH NON -WOVEN C-60N W OR EQUAL. STONE NON -WOVEN GEO- TEXTILE FILTER FABRIC 108' 4'-6" PARKING SURFACE �i -- BASE COURSE -� P OF SYSTEM ELEV. 18.53 SHWT= ELEV. 13.0' CROSS SECTION NO SCALE TOP OF SYSTEM TO- ELEV. 18.53 is I i� BOTTOM OF SYSTEM NON -WOVEN GEO- L�N6{SjFEO.,JBZAI]E TEXTILE FILTER FABRIC SHWT- ELEV_ 1311'�_- BASE COURSE -- - \ 360 C.M.P. 36 C.M.P. (ALL PIPES) (ALL PIPES) LONGITUDINAL SECTION NO SCALE BOTTOM OF SYSTEM Q ain 0 Ln in C C N M • L LuCD .. Urn UJ a z C SEX O m U- C U N = ;� Z aW > c O Y � � 3 0 o _ O > O V> p u7 wM c LU �M C ^� a0 w .; L U U s i W W 43 W (n PE R SCALE: 1 " = 40' DATE: 1 / 16/2004 PROJECT: 04--0107 DRAWN BY: JC/DKN SHEET 3/4 1i I�i ,�' :F!1 rr r, .. t t. �, ; r r ' j, j a a .wirN r Trrrw7lefi{}t�llslr.•tr r>>y"�.rr►T, _. 1'liTill, REVISIONS W 0 U7 M r` O O 0i CD 0) 3 E Q) U1 A d Q) A 3 > 0 U Ql tx1 mot' 0 CD N U1 Qt 0 L d / U PLAN - SYSTEM 5 SCALE: 1" = 40' SYSTEM 5 DESIGN ICR TER1A Total Impervious Surface Area (BUA) - 8.708 sf Drainage Area - 10,254 sf % Impervious (1) - 84.921Y. Rv = 0.05 + 0.0090(1) = 0.8143 Required Storage Volume* = Drainage Area x Rv x 2"/12 = 1,392 cf • based upon Emerald We Requirement for retaining first 2" rainfall Infiltration System Volume X sectional Area of Trench = 3.5(height) x 15(width) = 52.5 sf X sectional Area of Pipes = 7.07 sf x 2 pipes = 14.1 sf X sectional Area of Voids = (52.5 sf - 14.1 sf)0.35* = 13.4 cf/ft • Void Ratio - 35X Unit Volume = 14.1 sf + 13.4 sf = 27.5 cf/ft Required Minimum Length = 1,392 cf/27.5 cf/ft 50.6' (51' Provided) P OF MM ELEV. 18.50 -,,IT ih BOTTOM OF SYSTEM VRD ANON -WOVEN GEO- TEXTILE FILTER FABRIC ' NOTES: 1. INFILTRATION AND MANIFOLD PIPES SHALL BE CORREGATED ALUMINUM PIPE (CONTECT "CORLIX LOCKSEAM" OR EQUAL. INFILTRATION PIPE SHALL BE PERFORATED (0.25" MIN DIA). MANIFOLD PIPES SHALL BE SOLID. ALL CONNECTIONS SHALL BE FACTORY WELDED OR FACTORY FURNISHED JOINTS. 2. STONE USED IN INFILTRATION TRENCHES SHALL BE CLEAN WASHED NO. 57 STONE. 3. GEOTEXTILE FABRIC SHALL BE CONTECH NON -WOVEN C-6DNW OR EQUAL. BASE COURSE I", - 36" G.M.P. 36" C.M.P (ALL PIPES) (ALL PIPES) DIFFUSE INV. -15.44 (SEE DETAIL) GREASEZQ L SEP_ARA TOP-20.20 INV IN-15.69 INV OUT-15.52 INLET STRUCTURE T TOP-19.40 15" INV OUT-15,71 WEIR ELEV-18.00 10" INV OUT-15.71 3 DRAINAGE AREA WASHE STONE NON -WOVEN GEO- TEXTILE FILTER FABR WASHED 15" CMP INLET LONGITUDINAL SECTION NO SCALE 4'-6" 6'-0" ASPH, PARKING SURFACE OACC' fVW Iocr -I TOP M ELEV. 15.50 BOTTOM OF SYSTEM ELEV. 15.00 SHWT- ELEV. 13.0' "46- CROSS SECTION NO SCALE DEWEY OROS. 24"438" 6 -1• DROP INLET FRAME 8 � s'-a- CRATE (CH-BN-2 OR EQ.) I 6" CONCRETE SLAB PRECAST CONIC OR MASONRY PRECAST RISER (TYP) 1 F N0, 5 REBAR 4; O 12 O.C.E.W. 6" CONCRETE SLAB-`- .. 10' a Iwo INLET STRUCTURE DETAIL SCALE: NONE ACCESS /OPENING \ VENT HOLES /(3-2" MIN) 15' CMP TO WLTRATM SYSTEM 12 SEDIMENT STORAGE BOLT FRAME TO CASTING (4 REQ'0)--� SECURE CASTING W/MORTAR - - - - -1 i 4" OR 8" PRECAST- �1 GRADE RINGS - { MAMAN OF THREE I ALLOMED OR I OTHERNISE ADD I RISER SECTION I MANUFACTURE TO - -1= LOCATE STEPS 90' FROM OUTLET 1 PIPE. STEPS BY M.A, t INDUSTRIES. INC. r • ', PSI-PF OR EQUAL l:'r I I� I 17 SLOPE OF CHANNEL J 1 THRU MANHOLE -"'--------- T 2" D1A. PVC WEEP HOLE - - - - f /1 C OF � AN$ KBE ? EIN (NOTE 10, DETAIL 02.57) '' 1� 1 SET MANHOLE IN 6" TO 12" #57 STONE. - - - - - RING AND COVER - - - - - - TOP TO READ "STORM" PRECAST GRADE RINGS ARE TO BE USED WHEN POSSIBLE AMC ADJUSTED WITH BRICK k MORTAR COURSE - FILL JOWS FULL 1A1TH HIGH STRENGTH TYPE M MORTAR & STRIKE -----•-FLUSH INSIDE & OUT I I -------USE AN APPROVED BITUMINOUS BASE SEALANT APPLIED TO TOP OF CONE SECTION - - - ECCENTRIC CONE t •' •a iI PRECAST MANHOLE TO MEET REQUIREMENTS OF ASTM. •' I \ C478. AASHTO M-I" i I I I 1 I 144 - - PRECAST OPENING REQUIRED FOR ALL PIPES. PACK GROUT AROUND ALL ANNULAR OPENINGS SEE PLANS FOR PIPE SIZES ` I r✓ � JUNCTION MANHOLE DETAIL SCALE: BONE INFLUENT AT EFFLUENT PRECAST BAFFLE ' \ ENLARGE RIPENING ► BY DRILLING DR CORM CTYP) A INLET STRUCTURE WATERPROOF JOINT t=i SEPARATOR SMALL 730 (SEE DETAIL) SEALANT (TYP. ALL JOINTS) UNIT AS MANIYACTURED BYES AY I-R GAL IBAFFLE TANK OF RALEIGH, N.C. OR APPROVED EQUAL. oil M" 10 By GREASE/OIL SEPARATOR PASS SCALE: NONE DRILL ALTERNATE LOCATION HOLES (EACH 6" INTERVAL) Dill OF HOLES SHALL BE 'h" FABRICATOR SHALL WALL 100 MINIMUM IN 20 FOOT LENGTH. HOLLOCATIONS END CAP / WITH 4 HOLES _ L\io a o 0INLET a o 0 15' CORREGATED. PERFORATED PIPE. WITH END BLOCKED GENERAL NOTES TIE DO PIPE WITH DOW AT LNG OF PIPE, BILEMIDDFO PPE AND QFTYPE' ANCHORS SREW PIPE (TEN F00T INTERVALS). DIFFUSER DETAIL SCALE: NONE OCT. 15. 2004 PER TOWN OF EMERALD ISLE REVIEW NOV. 1. 2004 PER TOWN OF EMERAlb ISLE REVIEW NOV. 18. 2004 REVISED ELEVATIONS NOV. 30, 2004 REVISED ELEVATIONS Q a � top ► � Cn O C in C N M ' L W .-. 0 C UJ CL Cj a Z rn v C: _0 E cr X O O m �ua3: =z w 4-Jz > � Y 3 0 f6 1- o 1 U �o w" ,... Lu .. �Ch In0 �� Z 7 U a ,iiil�rt11i14" r, J L V) 0 w z W U W {n J .o rW'�� V V 1.4V� 1.4 0­4 Q) w o o� a 0 W � � 0 Q) U w� Cy C a CL p Uj J IL SCALE: 1 " = 40" DATE: 1 / 16/2004 PROJECT: 04-0107 DRAWN BY: JC/DKN SHEET 4/4 11 ? f-