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HomeMy WebLinkAboutSW8020806_Historical File_20030206STROUD ENGINEERING, P.A. Hestron Plaza Two 151-A Hwy. 24 MOREHEAD CITY, NC 28557 (252) 247-7479 TO NR WATER (RU A-LL TY 12-7 CARDINA-L- L)R- B)CT, W i Lim c t L&1-jbP 11& 2a405' WE ARE SENDING YOU ❑ Shop drawings ❑ Copy of letter dIEVVIRE @I F 4MMMUCT LUG, d DATE f2fc�10n L� JOB NO. ATTENTION RE: SINS o 20 a W H-1 TF oN<- s�Oas Attached ❑ Under separate cover via v/ the following items: ❑ Prints ❑ Plans ❑ Samples ❑ Specifications ❑ Change order ❑ DESCRIPTION jj ." j� ■ �04N'AO, - _ 1 11 THESE ARE TRANSMITTED as checked below: PROD # �— ❑ For approval ❑ Approved as submitted ❑ Resubmit copies for approval ❑ For your use ❑ Approved as noted ❑ Submit copies for distribution As requested ❑ Returned for corrections ❑ Return corrected prints ❑ For review and comment ❑ ❑ FORBIDS DUE ❑ PRINTS RETURNED AFTER LOAN TO US REMARKS COPY TO SIGNED: If enclosures are not as noted, kindly notify us at once. Swale Design Data Table (Utilizing Mannings Eqn.) Q = 1.486(A)(RP(S)1'2 n Trapezoidal Section A = By + My2 P = B + 2y(1+m2)'2 R = A/P Use for all outlet swales: M= 5 ft Project: PM1258 RV Park Sheet No. 3 Of 5 Calculated B Date I Checked By ate a S Revision: 9/12/02 a 'L o Revs icti t 17.! I b �a2 � *SEAL � 3343 ���.IYIG�sla�ga���C� •,� �� D CVe ,,Qo�v. n= 0.02 n= 0.03 Section DA Q10 (cfs) B (ft) Slope %o V1 (ft/s) y1 (ft) V2 ( ) y2 (ft) Al. -Al A2-A2 la -A 3 ` , 117 2.65 5 6-6: 0.2 1.31 0.31 0.99 0.39 A3-A3 4 17.38 5 0.5 3.17 0,66 2.36 0.81 A4-A4..... 5 14.20 5 4.5 6-46 0.33 _ _... 4.88 .. AS -AS;. _ .. A6-A6 6 8a 23.39 4.66 5. 5� 0.3 1.8 0.38 1.35 0.47 A7-A7 8b 3.79 5 1.0 2.54 0.24 1.93 0.30 A8-A8 1 a-1 d 54.52 5 1 0.2 1 2.96 1.16 3.42 1.05 Note: V1 and yl are for bare earth n=0.02 V2 and y2 are for grassed lined n=0.03 USE EROSION CONTROL BLANKET WITHIN SWALE RECEIVED DEC 12 2002 DWQ PROJ # aw 7 O 20 90 File: 125811258doc1pm 1258.xls STROUD ENGINEERING, P.A. CONSULTING ENGINEERS HESTRON PLAZA TWO 151-A HWY. 24 MOREHEAD CITY, NORTH CAROLINA 28557 10, %ff47-7479 Mrs. Linda Lewis NCDENR Division of Water Quality 127 Cardinal Drive Ext. Wilmington, NC 28405 RE: White Oak Shore _ SW8 020806 Request for Additional Information Dear Linda, Please find enclosed, the additional information requested in the letter dated October 2, 2002 for the project referenced above. 1. Please see sheet 4 of 4, Vegetated Drainage Outlet Swale Detail for the cross section of the swales noted as Al-A8. An additional section has been added to clarify. 2. The parking area at the southern end of the project has been regraded to avoid a concentrated flow. We are no longer proposing an inverted crown within the parking area, so the design of an infiltration area is not necessary based on emails and conversations with you as long an non -concentration was achieved. Secondly, the golf cart parking area shown will remain as grassed area allowing for additional stormwater runoff treatment for the proposed paved/graveled parking area. However, this grassed area has been included in our impervious coverage area for drives/parking. Also, the area denoted as recreational area will encompass a swimming pool and have elevated wooden walks (decreasing the actual impervious coverage within this area), however an exact layout has not been completed. 3. The entrance road is to be constructed exactly like the Typical Street Section detail shown on sheet 4 of 4. 4. Dimensions have been added to the parking areas, entrance road and parking lots (see Sheet 2 of 4). The entrance to the RV park shall be twenty four feet of pavement with 50' turning radii. 5. The entrance is crowned and a driveway culvert is proposed to allow water to drain from the east to the west and eventually into Gales Creek. 6. Based on our conversations we were in agreement that there were no direct discharges to SA waters and flow spreaders are not required. The map now clearly indicates the difference between the wetlands line and the mean high water line. 7. Noted for future project submittals. 8. Noted for future project submittals. If you have any additional questions or comments please do not hesitate to call. Sincerely, Ginger Turner 107 COMMERCE ST. HESTRON PLAZA TWO SUITE 8 102-D CINEMA DRIVE 151-A HWY.24 GREENVILLE, NC 27858 WILMINGTON, NC 28403 MOREHEAD CITY, NC 28557 (252) 756-9352 (910) 815-0775 (252) 247-7479 ��■ Dec 02 02 07:56a STROUD ENGINEERING PR 252 247 4098 P.1 r % 151-A Hwy 24 P.A. Morehead City, NC 28557 Stroud 252.547.7479 - Voice 252.247.4098 - Fax F4PLM � To: L (vNJ u Le,,ti S From: G i 1 ut Fax: C ((i _ -1 L "L Pages: ��- Phone: Date: 1 ��?� �. L� -` Re: l/+! +�'V3�iT 1. 04 I S7 CC. Los- Ci (p 0 Urgent ❑ For Review ❑Please Comment ❑Please Reply �I ❑Please Recycle • Comments: �F I .1 F �1r� itR•�q�5' CONSULTING ENGINEERS HESTRON PLAZA TWO 151-A HWY 24 MOREHEAD CITY, NORTH CAROLINA 28557 (252) 247-7479 November 18, 2002 Ms. Linda Lewis NCDENR 127 Cardinal Drive Ext. Wilmington, NC 28405 via fax: 910-350-2004 RE: SW8 020806 — White Oak Shores Ms. Lewis, I would like to request an additional two week time extension for submittal of the additional information required to complete your review for the above referenced project. I am awaiting further review of the items requested, as previously discussed by phone on November 13. Please call with any questions. Sincerely, GingeXuzm 107 COMMERCE ST. HESTRON PLAZA TWO SUITE B 102-D CINEMA DRIVE 151-A HWY. 24 GREEENVILLE, NC 27858 WILMINGTON, NC 28403 MOREHEAD CITY, NC 28557 (252)756-9352 (910)815-0775 (252)247-7479 STROUD ENGINEERING, P.A. CONSULTING ENGINEERS HESTRON PLAZA TWO 151-A HVL+Y. 24 MOREHEAD CITY. NORTH CAROLINA 28557 (252) 247-7479 November 4, 2002 Ms. Linda Lewis NCDENR 127 Cardinal Drive Ext. Wilmington, NC 28405 via fax: 910-350-2004 RE: SW8 020806 White Oak Shores •� p � .. � ,C � i i i/ iY � , •��.,. �'r-�'C.1' ma's £=,`i�j,. Ms. Lewis, I would like to request a two week time extension for submittal of the additional information required to complete your review for the above referenced project. I am awaiting a response from you in regards to the wetland/mean high water line issue, as previously discussed by voice mail, to aid in the design of this low density project to determine what is required for approval. Please call with any questions. Sincerely, Ginger Turner 107 COMMERCE ST. HESTRON PLAZA TWO SUITE B 102-D CINEMA DRIVE 151-A HWY. 24 GREENVILLE, NC 27858 WILMINGTON, NC 28403 MOREHEAD CITY, NC 28557 (252) 756-9352 (910) 815-0775 (252) 247-7479 NOV-12-2002 TUE 10:50 AM NC DIV OF COASTAL MGMNT 151-A Hwy 24 Morehead City, NC 28557 252.547.7479 - Voioo 252.247A098 - Fax FaX To: FAX N0. 4 P. 01 -P,V / Z..—L$ Y---1 From: (-'t I Fa» �jl Phone: Date: ! d l l '-'sP Re: '5W49 02A t b El Urgent ❑ For Review 0 Comments; CC: ❑ Please Comment M Please Reply ❑ Please Recyela NOV-12-2002 TUE 10:50 AM NC DIV OF COASTAL MGMNT FA� NO. 4 P. 02 CC, f imp U)-"h&J 5 2 Vol"' �0 Re: White Oak Shores - SW8 020806 Subject: Re: White Oak Shores - SW8 020806 Date: Thu, 10 Oct 2002 08:24:06 -0400 From: Linda Lewis <Linda.Lewis@ncmail.net> Organization: NC DENR To: ginger turner <gturner@stroudengineer.com> Ginger: I don't think that even with sheet flow, I would reconsider. I think that in order for this not to be a pocket of high density, the whole concept to the parking lot would need to be reconsidered. May I suggest placing 10-15 foot wide depressed planted islands in between each parking bay, and having the runoff for that bay drain into the depressed area to infiltrate? This type of proposed layout would not be subject to the "pocket of high density" call. I am not concerned about the streets areas at the recreation center. Linda ginger turner wrote: I am only concerned about the parking > Dear Linda, > I am in receipt of your letter for additional information dated October > 2, 2002 for the above referenced project. We would like to modify the > grading for the parking and golf cart area around the recreational area > to have it sheet flow in all directions and not concentrate the > stormwater to only two outlets creating the pocket of high density. Is > this an option? > Secondly, the streets are crowned, forcing the water to either edge of > the pavement meeting the back slope of the lots. This will allow for the > stormwater to drain along grassed areas before discharging into the > wetlands. All outlet swales have a minimum 5' bottom, 50, length and > then discharge at an appropriate existing elevation to allow for sheet > flow into and across the wetlands for additional treatment. We are using > the natural topography of the wetlands as our flow spreader. > Ginger Turner, E.I. > Stroud Engineering, P.A. > 151-A Hwy 24 > Morehead City, NC 28557 > (252) 247-7479 > (252) 247-4098 (fax) 1 of 1 10/10/2002 8:25 AM Mlctiael F. Easley, Governor William G. Ross., Jr., Secretary North Carolina Department of Environment and Natural Resources of Robin V. Comer, Member/Manager First & Last Child, LLC PO Box 1253 Swansboro, NC 28584 Dear Mr./Ms. Comer: Alan W. Klimek, P.E., Director Division of Water Quality Wilmington Regional Office October 2, 2002 Subject: REQUEST FOR ADDITIONAL INFORMATION Stormwater Project No. SW8 020806 White Oak Shores Carteret County The Wilmington Regional Office received a Stormwater Management Permit Application for White Oak Shores on August 8, 2002. A preliminary review of that information has determined that the application is not complete. The following information is needed to continue the stormwater review: Please provide the section details for those areas identified on the (wading plan as Al - A6. 2. Due to the pocket of high density created by the proposed inverted crown grading and the concentration of built -upon area at the recreation center, an infiltration system will be required to treat the runoff from the building and parking areas associated with the recreation area. Please submit a soils report, sealed design calculations, a revised application and infiltration supplement. 3. Please provide sections details for the entrance road area.. 4. Please provide dimensions for the entrance road, buildings and parking lots. 5. Please provide sufficient spot elevations or details for the entrance road area to indicate how it will drain. 6. No direct discharges to SA waters are allowed. Please provide a flow spreader mechanism at the end of all pipes, and allow a minimum of 50' of grassed area to sheet flow the runoff through beyond the flow spreader. 7. Since the classification of both receiving streams is SA, it isn't necessary to show separate drainage areas on the application. In cases where there are natural physical features that separate drainage areas, and you need to demonstrate that low density is met within each individual area, you need only provide separate calculations, as are shown on the Grading, Erosion Control and Stormwater Plan. No change to the application is required. 8. The lots will be leased, therefore, deed restrictions are not required. The "Lot Impervious Allocation" sheet submitted is not required. a N N.C. Division of Water Quality 127 Cardinal Drive Extension Wilmington, N.C. 28405 (910) 395-3900 Fax (910) 350-2004 Customer Service 800-623-7748 Mr. Comer October 2, 2002 Stormwater Project No. SW8 020806 Please note that this request for additional information is in response to a preliminary review. The requested information should be received by this Office prior to November 2, 2002, or the application will be returned as incomplete. The return of a project will necessitate resubmittal of all required items, including the application fee. If you need additional time to submit the information, please mail or fax your request for a time extension to the Division at the address and fax number at the bottom of this letter. The request must indicate the date by which you expect to submit the required information. The Division is allowed 90 days from the receipt of a completed application to issue the permit. The construction of any impervious surfaces, other than a construction entrance under an approved Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and is subject to enforcement action pursuant to NCGS 143-215.6A. Please reference the State assigned project number on all correspondence. Any original documents that need to be revised have been sent to the engineer or agent. All original documents must be returned or new originals must be provided. Copies are not acceptable. If you have any questions concerning this matter please feel free to call me at (910) 395-3900. Sincerely, 4dti 0ag" Linda. Lewis Environmental Engineer RSS/arl: S:\WQS\STORMWAT\ADDINFO\2002\020806.00T cc: Linda Lewis Ron Cullipher, P.E. Entity Names http://www. secretary. state,nc. us/Corporations/soskb/Corp. asp?54148 North Carolina �.. "�,f i � rW Secretary SECRETARY or-- ATE PO Bux 2%, 22 Raleigh, NCB 2 62.6-0I ?2 (919)807 =0 7cgttl.-NFE.=-E=o gorate-k4ame-- Date: 10/2/2002 OCorporatinns Home Document Filings Imr,m ant Wtice j 'Corp"te Forms Corporation Names -vCorporations FAQ aNew Form Notice 'Ova Ceilil'l!mboln Name `-'Secretary Of State Horne First &Last Child, LLC j 3u€mess LicenseLimited Liability Company Informatio ,;Register for E-Procurement ,WJe . of Revenue SOSID: v1999 Senate Bills Status: 62001 Bill Summaries °'Annual Reports 1097 Date Formed: VCorporations 1997 Citizenship: Other Le 'siation • State of Inc.: By Corporate Name For New Corporation Duratron�. 043y Registered A ent Registered Agent • - 0- tStart An Order Agent Name: Registered Office Address: Registered Mailing Address: Principal Office Address: Principal i'Aalling Address: Name Type Legal n 0618785 Current -Active 2/1 /2002 Domestic NC 1213 12051 Comer, Harold W. 322 C Wood Farms Road Swansboro NC 28584 PO Box 1270 Swansboro NC 28584 No Address No Address Bar -Coded Forms For questions or comments about the North Carolina Secretary of State's web site, please send e-mail to Wt For questions or comments concerning the Corporations Division, please send e-mail to Corporations Adm 1 of 1 10/2/2002 9:24 AM WHEATLY LAW FIRM 2527285282 01/31 '02 1 ZZ 0Z3 5100 State Of North Carolina ]Department Of The Secretary Of State Limited Liability Company ARTICLES OF ORGAM7�A'TI<ON SOSID: 618785 Date Filed: 2/1/2002 10:39 AM Elaine F. Marshall North Carolina Secretary of State Pursuant to §57C-2-20 of the General. Statutes of North Carolina, the undersigned does hereby submit these Articles of Organization for the purpose of forming a limited liability company. 1. The name of the limited liability company is: FIRS' & LAST CHILD, LLC 2. Tfthe limited liability company is to dissolve by a specific date, the latest date on wbicb the limited liability company is to dissolve: (If no date for dissolution is snecifred, there shall be no limit on the duration of the limited liability company.) December 31, 2051. 3. The name and address of each organize' executing these articles of orgartizatation is as follows: (State whether each person is executing these articles of organization in the capacity of a member, organizer or both.) Robin Van Comer, Organizer (Member 115 Hickory Nut Court Newport, NC 28570 Harold R. Comer, Organizer/Member 322 C-Wood Farms Road Swansboro, NC 28584 Gina Page Comer, Organizer/Member 1204 Park Avenue $ Goldsboro, NC 27530 4. The street address and county of the initial registered office of the limited liability company is: Number and Street: 322 C-Wood )Farms Road City, State, Zip Code: Swansboro, NC 28584 County. Carteret 5. The mailing address if different from the street address of the initial registered office is: P. 0. Box 1270, Swansboro, NC 28584 6. The name of the initial registered agent is: Harold R. Cotner 322 C-Wood Farms Road Swansbor% NC 28584 WHEATLY LAW FIRM 2527285282 01/31 102 17:12 N0.362 04/04 7. Check one of the following: (i) Member-mmanaged LLC: all of the members by virtue of their status as members shall be managers of this limited liability company. ,X— (ii) Manager -managed LLC: except as provided by N.C.G.S. Section 57C-3-20(a), the members of this limited liability company shall not be mawgers by virtue of their status as members. Any other provisions which the limited liability company elects to include are attached. These articles will be effective upon filing, unless a date and/or time is specified: 'T%s the,- day of 9 LhczL Vo4ower, Organizer/Member I11 %comel7's m & ug, llc wholes STROUD ENGINEERING, P.A. Hestron Plaza Two s 151-A Hwy. 24 �01 MOREHEAD CITY, NC 28557 '6D (252) 247-7479 (D TO NGD k- Div. J Wa e Ol() UN i 1hnlr1A+n, 1\1L Z 405 WE ARE SENDING YOU ❑ Shop drawings ❑ Copy of letter ❑ Attached ❑ Under separate cover via ❑ Prints ❑ Plans ❑ Change order ❑ DATE S S� � JOB I� ATTENTION RE: Ulf f�i �- Cl w e tj ❑ Samples the following items: ❑ Specifications DESCRIPTION • '� ,M Fire, . / M TOME M r i t r iA M. _ L•� 0 • THESE ARE TRANSMITTED as checked below: ❑ for approval ❑ For your use ❑ As requested ❑ For review and comment ❑ FORBIDS DUE REMARKS ❑ Approved as submitted ❑ Approved as noted ❑ Returned for corrections 171 ❑ Resubmit copies for approval ❑ Submit copies for distribution ❑ Return corrected prints ❑ PRINTS RETURNED AFTER LOAN TO US 5 s COPY TO SIGNED: Ifenclosures are not as noted, kindly notify us at on State of North Carolina Department of Environment and Natural Resources Wilmington Regional Office Division of Land Resources Land Quality Section Michael F. Easley, Governor William G. Ross Jr., Secretary August 9, 2002 NOTICE OF RECEIPT OF EROSION & SEDIMENTATION CONTROL PLAN First & Last Child, LLC Robin Comer P.O. Box 1253 Swansboro, NC 28584 Gentlemen: This office has received a soil erosion and sedimentation control plan for the project listed below which was submitted as required by the North Carolina Sedimentation Pollution Control Act (NCGS 113A-57(4)). Please be advised that this Act requires that all persons disturbing an area of one or more acres of land must obtain approval of a soil erosion control plan prior to the commencement of said land -disturbing activity (NCGS 113A- 54(d)(4)). The Act further states that this plan must be filed a minimum of 30 days prior to the activity and the approving authority must approve or disapprove the submitted plan within 30 days of receipt. Failure of the approving authority to approve or disapprove the submitted plan within the 30 day period will be deemed approval of the plan if the submitted plan is complete. Commencement or continuation of a land -disturbing activity under the jurisdiction of this Act prior to the approval of an erosion & sediment control plan is a violation of the Act. A copy of any erosion and sediment control plan which could involve the utilization of ditches for the purpose of dewatering or lowering the water table is forwarded by this office to the Division of Water Quality (DWQ). It is suggested that you contact Joanne Steenhuis at (910) 395-3900 of DWQ if the ditches shown on your plan will lower the water table. We have performed a preliminary review of your submitted plan and have determined that additional information will be necessary before a final review can be completed. Enclosed is a checklist of items that must be submitted before we can complete the review Process. Failure to provide the additional information may result in disapproval of your plan. The approval of an erosion and sediment control plan is conditioned on the applicant's compliance with Federal and State water quality laws, regulations and rules. If you have questions or need additional information, please do not hesitate to contact this office. Your cooperation in this matter is appreciated and we look forward to working with you on this project. Sincerely, Janet L. Paith. CPESC Environmental Technician JLP/bfr cc: Binger Turner; Stroud Engineering PROJECT NAME: White Oak Shores PROJECT NO.: ON-03029 LOCATION: NCSR 1101 - Onslow County RIVER BASIN: White Oak SUBMITTED BY: Stroud Engineering DATE RECEIVED BY L.Q.S.: August 8, 2002 127 North Cardinai Drive, Wilmington, N.C. 28405-3845 • Telephone 910-395-3900 a Fax 910-350-2004 An Equal Opportunity Affirmative Action Employer LOT IMPERVIOUS ALLOCATION LOTS 1-93 500 SF PER LOT LOTS 94-558 850 SF PER LOT TOTAL 441,750 SF WHITE OAK SHORES FIRST & LAST CHILD, LI.0 P.O. BOX 1253 SWANSBORO, NC 28584 (252) 354-6010 RECEIVED AUG o a 2oo2 DWQ PROJ # 5(•u80Z08v(p STROUD ENGINEERING, P.A. Hestron Plaza Two 151-A Hwy. 24 MOREHEAD CITY, NC 28557 (252) 247-7479 TO V. DT �%�-��i✓�VLr �1 ?2 ilx.44 na-I fi>r,+ 1nJ i fyni na-4o h , n) 02 645' DATE 0 � r`V ,� L! JOB NO. Not 1 `2� ATTENTION, crel l,� L I.r�'he�a�h RE: Lever sf j tea, WE ARE SENDING YOU ❑ Attached ❑ Under separate cover via ,� A U i, the follovv , items: ❑ Shop drawings ❑ Prints ❑ Plans $Re4ifications ❑ Copy of letter ❑ Change order ❑ COPIES DATE NO. DESCRIPTION 2C. l h rAi [ co [i � Ilia-rY�-� rrt c? dvl THESE ARE TRANSMITTED as checked below: ❑ For approval ❑ Approved as submitted ❑ Resubmit copies for approval ❑ For your use ❑ Approved as noted ❑ Submit copies for distribution ❑ As requested ❑ Returned for corrections ❑ Return corrected prints ❑ For review and comment ❑ ❑ FOR BIDS DUE ❑ PRINTS RETURNED AFTER LOAN TO US REMARKS kfl s C A-tt L- SA8'ljf.j__ l 1 z11-P q COPY TO SIGNED: If enclosures are not as noted, kindly not/fy us at on Narrative Erosion and Sedimentation Control Plan Stormwater Management Plan White Oak Shores July'27, 2002 Owner: First & Last Child, LLC P.O. Box 1253 Swansboro, NC 28584 (252) Engineer: Stroud Engineering, P.A. 151-A Hwy 24 Morehead City, NC 28557 (252) 247-7479 A. Description of Project White Oak Shores, a recreational vehicle park, is situated on the White Oak River located in Stella, Carteret County. This tract is currently a'sod farm and adjacent properties are also farmland. The park is being divided into ease lots with crowned streets, draining into vegetated swales. The total tract area is approximate y 115 acres, but consists of two separate drainage areas, due to an existing ditch that divides the property (see Drainage Area Map). The site presently drains to the south and east and discharges to either the White Oak River or Gales Creek, which are both classified as SA waters. The project is being proposed as low density with impervious surfaces totaling 25% of the usable tract, within each drainage area. The impervious coverage accounted for lots 94-558 assumes that the lot would house a recreational vehicle (max 288 so, parking (200 so, storage building (64 so, and covered porch (300 sf ) totaling approximately 850 sf per lot and allotting lots 1-93 with 500 sf of maximum impervious coverage per lot (lots 1-93 allow only for a recreational vehicle (288 so and parking (200 so). The owners of the tract are proposing to construct White Oak Shores in phases with approximately one hundred and fifty lots per phase. The maximum disturbance during any phase shall not be more than thirty acres and the erosion control measures must be installed prior to the startup of construction for that phase. B. Erosion and Sedimentation Control Measures The following measures are proposed for the. site. If it becomes evident that additional erosion and sedimentation control measures are needed, they shall be installed immediately. It is intended that all grading and excavation activities within a certain area will be protected as soon as that activity is complete. 1. Sediment Fence — Sediment fence will be utilized as necessary in locations as shown on plans or as deemed necessary by the engineer to insure that oil -site sedimentation is controlled and any wetland areas are protected. 2. Seeding — All disturbed areas will be seeded -within 14 days following construction in accordance with the seeding schedule shown on the plans. File: 17Public/Master/Dmwings/1258/pml258nar.doe 3. Stone Construction Entrance — Stone construction entrance will be used to reduce transport of sediment off site. 4. Temporary Sediment Traps — Sediment traps will be constructed as shown on plans and serve to trap sediment and prevent from the.sediment moving off -site or into wetland areas. 5. Erosion Control Blanket - Blankets are designed to aid in the processes of nature, by protecting soil, seed, and fertilizer until vegetation is firmly established Maintenance Plan 1. All erosion and sediment control measures shall be checked for stability and effective operations following every runoff producing rainfall event or at least once per week. Repairs required shall be completed immediately to the dimension and functions indicated on the plans. 2. Sediment shall be removed form behind the sediment fencing when it becomes 0.5 feet deep at the fence. The fence shall be replaced or repaired as necessary to maintain a barrier. 3. All seeded areas shall be fertilized, seeded and mulched within 15 days of disturbance. Disturbed areas shall be fertilized, reseeded and mulched as necessary according to the Contract documents to establish and maintain a dense vegetative cover. Construction Sequence 1. Clear and grub area within right of way, drainage and utility easements. 2. Install stone construction entrance. 3. Construct drainage swales and install sediment traps as specified within each proposed phase of project. 4. . Seed drainage swale sections within 14 days of land disturbance 5. Rough grade area within right of way. 6. Install utilities. 7. Fine grade street areas and seed areas to remain outside of paved areas. 8. Place CABC and pave street. 9. Perform final seeding and mulching and remove sediment traps upon stabilization of each individual drainage swale. C. Design Assumptions 1. Design storm is ten years. 2. The rational method was used for the design. D. Coastal Stormwater Regulations The North Carolina Division of Environmental Management implemented coastal stormwater regulations in coastal counties on January 1, 1988. These regulations are detailed in 15 NCAC 2H.1000 Stormwater Management. These rules allow for a development to be considered under various options. This project is submitted for approval consideration under Section .1003(d)(1) low density development. is .� KELP= �� nopr. �� F_CULL .600 File: f/Public/Master/Drawings/1258/pm1258nar.doc V I CUTY MA F �, . r�� ` «�„x,—ram-; , � �� �,�, r � �;c,l I .a �1��,• '�� ,.# .n ��t I`--�'. vl"f'�� „'„"may ,r Fk y FR r._ 5s ;�� .. i py ii..._.' "v� k ''..✓ 6.ir�-1Sps.� a 1 CC y ;y'. y t ;Jn�'�,i. 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Ce -,}' y,. • i•Y" r , .. �g �i + ��Ff, it `�'��• �`��'�3� u =�y f t if��. :� �� v �ir•�., 61 i pra+f:a-9e, "!> i N /•/'• / ���F R�1G91J VV k4 ke Od k. 56 re S -JOB STROUD ENGINEERING, P.A. . SHEET NO. OF Nestron Plaza Two 'CALCULATED L4 T— P- F *-4 — F 151 A Hwy. 24 D MOREHEAD CITY, NC 28557 CHECKEDBY Tf I'J rr (252) 247-7479 SCALE .• -o f i I lew ........... SEAL ............. ............. ..... Z ........... ............ .............. ............. ............ ........... . ............. ............ . ........... ............. ............. ............. ... . ......... ........ . ..... ... ........ ... ....... . ...... ........ ............. ........... ... . .......... ........ .... ........... ...... ....... PRODUCT 204-1 (Sinqk Sheetsl 205.1 (Padded] DRAINAGE AREAS FOR SWALES & BOX CULVERTS PROJECT: LOCATION: Carteret County RUNOFF CALCULATIONS RATIONAL METHOD: Q=CIA RETURN PERIOD: Tc: INTENSITY: RUNOFF COEFFICIENTS: Project: PM1258 RV Park Sheet No. 2. of _ Calculated B- Checked By 10 YEARS 5 MIN. 7.23 IN/HR 1 IMPERVIOUS AREAS 0.3 GRASSED AREAS DRAINAGE AREA #1 AREA (SF) AREA (AC) CAvo 010 CFS 1a 547420.00 12.57 0.60 54.52` lb 636642.00 14.62 0.60 63.40. 2 65027.00 1.49 0.60 6.48 3 26628.00. 0.61 0.60 2.65 4 174550.00 4.01 0.60 17.38 ` 5 142629.00 3.27 0.60 14.20 6 234838.00 5.39 0.60 23.39 *'s ` SEAL F! 13343 ? . Q. D. CV���Q���� File: 1258\1258doc1pm 1258.)ds Project: PM1258 RV Park ouriqto Sheet No. _� ,o 0 '�9 Ovi, Calculated B ES ' Checked By Da 2 y SEAL r Vegetated Filter Design Data Table y3343 s (Utilizing Mannings Eqn.) : p . F Q = 1.486(A)(R)"(S)1'2 ��•4;GINEE�•'• Trapezoidal Section A = By + My2 P = B + 2y(1+m2)1J2 R = A/P Use for all outlet swales: M= 5 ft n= 0.02 1 r_ 0.03 Section DA Q10 (cfs) B (ft) Slope % V1 (ft/s) y1 (ft) I V2 (ft/s) . (ft) .'S -Ai 1 a &.1 b 117,92 - 10 5.05 11.0 0.73 8.91 0.91 A2-A2 2 6.48°• 5 15.8. 7.61 0,15 5.83 0.19•,... . A3-A3 3 2.65 5 0.2 1.31 0.31 0.99 0.39 A4-A4 4 17.38 5 0.5 3.17 0.66 2.36 0.81 v "Y.2w 5 _ 4.5 6.46 U.33 4.'� 0.41 rA6-A6 .. 6....:. -. 23.39 ., .5 ..... 1.8 5.44 0.55 ... 4.07 0.68,�W2. i Note: V1 and y1 are for bare earth n=0.02 V2 and y2 are for grassed lined n=0.03 USE EROSION CONTROL BLANKET WITHIN SWALE File: 125811258doc1pm 1258.x1s Temporary Sediment Trap Calculations Sediment Rate: Accumulation Rate: Sediment Storage Depth Clean out frequency Clean outs per year Project: PM1258 RV Park Sheet No. U ^f Calculate Checked 1 in sed/acre/yr 3630 cf sed/acre/yr. 3 4 per month 48 Trap # Drainage Area Area (ac) Acc. Vol., (cf/yr) Sod. Storage Vol. (cf/clean out) Trap Width (ft) Trap Length (ft) la la 12.57 45618.33 950.38 17.8 35.6 lb lb 14.62 53053.50 1105.28 19.2 38.4 2 2 1.49 5418.92 112.89 6.1 12.3 3 3 0.61 2219.00 46.23 3.9 7.9 4 4 4.01 14545.83 303.04 10.1 20.1 5 5 3.27 11885.75 247.62 9.1 18.2 6 6 5.39 19569.83 407.70 11.7 23.3 Note: 1. Sediment storage volume is calculated assuming that trap clean out is at 1/2 of sediment storage depth. 2. Traps are sized to have a length equal to two times the width. v L, File: 1258\1258DOC\PM 1258. xis -,.B P +e- OOLk- STROUD ENGINEERING, P.A. -SHEET NO. 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PRODUCT 204-1 (qnOe Shmis) 205 1 (PaMF.di