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HomeMy WebLinkAboutSW7101102_HISTORICAL FILE_20200723STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS HISTORICAL FILE El COMPLIANCE EVALUATION INSPECTION DOC DATE YYYYMMDD I ROY COOPER Governor MICHAEL S. REGAN Secretary BRIAN WRENN Dtmctor Croatan Land Company, LLC P.O. Box 405 Kill Devil Hills, NC 27948 Dear Sir: .NORTH CAROLINA Enrlronmentd Qtmllty July 23, 2020 Subject: Stormwater Permit Renewal Stormwater Management Permit SW7101102 RHG Office Building Dare County A Division of Energy, Mineral, and Land Resources file review has determined that Stormwater Permit SV 7101102 for a stormwater treatment system consisting of an infiltration basin serving the RHG office building located at 700,Blue Jay Street, Kill Devil Hills, NC expires on January 31, 2021. This is a reminder that permit renewal. applications are due 180 days prior to expiration. We do not have a record of receiving a renewal application. Please submit a completed permit renewal application along with a $505.00 fee for permit renewal. Permit application forms for renewal can be found on our website at: https:,//dea nc gov/about/divisions/ern rgy mineral land resources/energy-mineral-land- r 11 /stormwater12rogram/post-construction. North Carolina -General Statutes and the , Coastal Stormwater rules require that this property be covered under a stormwater permit. Failure to maintain a permit subjects the owner to assessment of civil penalties.' If you have questions, please feel free to.contact me at (252) 948-3923. 1 will be glad to discuss this by phone or meet with you. If you would like, I can e-mail you a copy of the application form. You can request a copy by e-mailing me at roger thoroe anncdenr clov. Sincerely, r Roger K. Thorpe Environmental Engineer North Carolina Department of Environmental Quelhy I Dlvtslon of Energy, Mlnetal and land Resources �`L Washington Rcglonal Office 1943 Washington Squart Mall I Washington, North Cao1W 27889 0 2S2.946.6481 9 aI" CALFEE ENGINEERING MECHANICAL • CIVIL • STRUCTURAL • CONSTRUCTION MANAGEMENT December 14, 2011 RECEIVED Mr. Roger K. Thorpe DEC 15 2011 NC Division of Water Quality 943 Washington Square Mall Washington, NC 27889 DWQ—WARO Re: Stormwater Management Permit SW7101102, RHG Office Building, 700 Bluejay St., Kill Devil Hills, Dare County; Conditional Construction Completion Certification Dear Roger: Construction of the referenced project is complete within substantial compliance and intent of the approved plans and specifications, with the following exceptions: 1. The vegetated shoulder west of the western drive shall be lowered slightly to allow free stormwater flow into the catch basin. 2. The catch basin in the western drive throat shall be cleaned. 3.. ".A'U-drain shall be{"install-ed�at the=3'o'cation of -)'the western ri- l'(t' q' 1cvr driveway"crown "depicted"",on'-`the,' drawings 'tointercept'and convey stormwater to the catch basin within the western parking area. 4. Elevation of the high area of the swale bottom at the vicinity of the northwestern corner of the property shall be confirmed or adjusted to retain stormwater in the eastern swale while assuring free stormwater flow over the high area without flooding roadway pavement. 5. The southern 2 feet of the curb, gutter and pavement of the eastern drive apron shall be cut and removed to duplicate the existing configuration,.and the roadway shoulder lowered to create a swale consistentwith the drawings to allow free stormwater flow into the shoulder swale. 6. Sod replacement of rip -rap apron flume discharges is basis that discharges from depicted on the drawings at drive accepted without correction on the the flumes are non -erosive velocity. All exception's are to be 'corrected to' allow`an unconditional Designer's Certification not later than Janua;ry 31, 2012. 3048 MARTIN'S POINT RD., KITTY HAWK, NC 27949-3816 (252) 261-3025 VOICE, 261-4025 FAX calfeeengineering@charter.net DEC 1 a Soil r Roger Thorpe December 14, 2011 Please see the attached field sketch mark-ups SK-01 and SK-02 of the exception corrections, and the NC DWQ Designer's Certification (conditional) and Checklist. Please e-mail me at calfeeengineering@charter.net or call me at (252) 202-4025 if you have any questions or comments, or if you require additional information. �prrur CA Sincerely, � ; a f _ o Ralph D. Calfee, P.E. '',r�pND rrtata.+�+ cc: Mr. Greg Loy, Town of Kill Devil Hills Ms. Terry Brown, RHG Mr. Glenn Wickre, Wickre Construction 2 150.00 18" DROP "OUTLET" RIM: 7.82' NORTH; 8.32' SOUTH INV PIPE TO SOUTH: 6.50' WEEP HOLE AT BOTTOM W/ GEOTEXTILE 12"0 X 40' SMOOTH —BORE HDPE CORRUGATED PIPE W/ WATER —TIGHT COUPLING 7.0 5 g,2 O�iC. SWALK mss ST G CUT IN PROP. DROP INLET RIM= 7.76' BOTTOM BOX= EX. PIPE INV. EX. INV. PIPE TO WEST= 5.95 EX. INV. PIPE TO EAST= 5.95 NAVD 88 ADJUST LOCATION IN FIELD TO AVOID WATER MAIN & VALVES PROP. WATER8.76 O METER Z_6wz � sdvc�c�iZ � -\ 8.76 10'. 0.1 75' ca 8.8(�''0�� 9.12' � �,'aAasfss 1221 DETAIL — RETAINING WALL DELETION & PIPE/DROP-OUTLET SUBSTITUTION �..<c <3f 1 "=1 0' s114/ 4tol/ma ,RHG OFFICE BUILDING ftc=e?iC°''I' BLUEJAY STREET i PAD 81.73' —/� l \ \�.'1 —, ,8.80't .-.,,.,. ll.°.11l« 10.2 ' �'� RAISE SOLID GRATE INV. PIPE ZBASI'4 10.25 .0 ���8 `i'"' '91�,'` MATCH DRIVE'RAY SURFACE IPROP 10 7' \ UN BU L ING; BASIN RIP —RAP ® 9. B I VE 8. NAVD '88 APRON ° �/VST.ALC'- — — Dso=a" o.s' 10.07'c/-7r;»d7iYi z 9 — _— — — 8' MIN . �a- 9.75.. �, 8.75 . . VALLEY 70.04' i. tj1. FOREBAY 8'¢ PVC; SCH ep DI i0 EDP N !. 58.08 - ACCESS 10.14` 0� ` 8.71 10.24' ........ PROP 0' S 16 D 11.6' COVERED DECK MIN 8.0 WELL 9. 7' 8:54' ZIRO NLEI 11.51, 11.51'H(11.09' 11.6 11.51' 11.4' �\ 1 �; \ D "ti t\ R10 c'GN 11.51' 1. 1aa% ' t a,Fc i, 7 1 t 16{2 C. SIDEWA,K 42 11 a, 6 CON0..4%DEWALK 11. 1 �8.4 \' u. aV .5 1 s. �, ...t .., A y t V. A UT \\ s.a�' . 1,6 10.8' P C `so"l so t" .88'231 sf,a62 DRC-S,f� r �<,oee 3 REPPE IR p eP� \l RD.'h{-ti' ODULE 1,7. 8' ' \ 8" + � ..INV. 8"' D'A PROPO D ASPHALT \ \ SLOPE 10:7 I 2: 10.86' \ SW'ALE WEST n 322 S 10.45 STRUCTURE \ 8PV e3e SHO \10:35' $.m 0.14' 10.14' \\ \ U l 9.84• � 9.8 � 1 9.78' m m� \ >>o .04* 9.Sfi OT. D 9.56 9.78' 9.78' 10.08in ' 1 1 - - 0 Ias— \ 8.89' 8t76 ------ LOr86 99, \�yP /W _ _ 7.90 J . s.oi-- PROP (z) 7.8 a; 5'%. 8' .RIP -RAP zl ze4 7-6`7 - : s jt/C/ DROP INLET .A - 7 6. APRON; p). . ��C►'cs .sdrrr.aM <.).78" S917 6K (TYP) z'e� ev?a� >%zBLUE JAY ST. — 50' R/W -sw t4)/"aa Sfrid LGY - � CALFEE ENGDMERING MECHANICAL • CIVIL • STRUCTURAL • CONSTRUCTION MANAGEMENT December 14, 2011 Mr. Roger K. Thorpe NC Division of Water Quality 943 Washington Square Mall Washington, NC 27889 Re: Stormwater Management Permit SW7101102, RHG Office Building, 700 Bluejay St., Kill Devil Hills,.Dare County; Conditional Construction Completion Certification Dear Roger: Construction of the referenced project is complete within substantial compliance and intent of the approved plans and specifications, with the following exceptions: 1. The vegetated shoulder west of the western drive shall be lowered slightly to allow free stormwater flow into the catch basin. 2. The catch basin in the western drive throat shall be cleaned. 3. A U-drain shall be installed at the location of the western driveway crown depicted on the drawings to intercept and convey stormwater to the catch basin within the western parking area. 4. Elevation of the high area of the swale bottom at the vicinity of the northwestern corner of the property shall be confirmed or adjusted to retain stormwater in the eastern swale while assuring free stormwater flow over the high area without flooding roadway pavement. 5. The southern 2 feet of the curb; gutter and pavement of the eastern drive apron shall be cut and removed to duplicate the existing configuration, and the roadway shoulder lowered to create a swale consistent'with the drawings to allow free stormwater flow into the shoulder swale. 6. Sod replacement of rip -rap depicted on the drawings at drive apron flume discharges is accepted without correction on the basis that discharges from the flumes are non -erosive velo.city. All exceptions are to be corrected to allow an unconditional Designer's Certification not later than January 31, 2012. 3048 MIARTUrS POINT RD., KTTTY HAWK, NC 27949-3816 CZM 261-3025 VOICE, 261-4025 FAX caffeewVhioadng@dwdw.net Roger Thorpe December 14, 2011 Please see the attached field sketch mark-ups SK-01 and SK-02 of the exception corrections, and the NC DWQ Designer's Certification (conditional) and Checklist. 11 Please e-mail me at calfeeengineering@charter.net or call me at (252) 202-4025 if you have any questions or comments, or if you require additional information. CARpll'•� Sincerel , � SEa a : 12286 Ralph D. Cal e, P.E. 0••,,1pH CA; ` •in D „om` �. cc: Mr. Greg Loy, Town of Kill Devil Hills Ms. Terry Brown, RHG Mr. Glenn Wickre, Wickre Construction 2 18" DROP "OUTLET" CUT IN PROP. DROP INLET RIM: 7.82' NORTH; 8.32' SOUTH RIM= 7.76' INV PIPE TO SOUTH: 6.50' BOTTOM BOX= EX. PIPE INV. WEEP HOLE AT BOTTOM W/ EX. INV. PIPE TO WEST= 5.95 GEOTEXTILE EX. INV. PIPE TO EAST= 5.95 NAVD 88 ADJUST LOCATION IN FIELD TO 12 0 X 40 SMOOTH —BORE HDPE AVOID WATER MAIN & VALVES CORRUGATED PIPE W/ PROP. WATER —TIGHT COUPLING WATER 8.76 O GAS soro�+2 7.0' S METER �'9 .ctcow Fz�^ 150.00' g,2 ® �e scow - ----... ---- - --- - - - - - - - - - - - - 8.76 7.0 9.0 8.0 E $ 10.2 5' 10. � g'o 8 68' 10.67 � 9.89' ,c0:Nc. tWLK `o-nt 10.1 �— e 10.2 STOP t= G OSS 10.25' `'�� '��C W.78.8oae541 DETAIL — RETAINING WALL DELETION & PIPE/DROP—OUTI FT SURI�TITI JT`inN �— o f spv/ ;t -RHG OFFICE BUILDING e�ce7;�ar� BLUEJAY STREET PAD 81.73' I VE 8. ' NAVD '88 I 58.08 01 "'O COVERED DECK 71642 11.51' 11.51'H01 0 ' ' 4Gu NC.` DEWAL{ --- •�`��ui. uup i� • 114 1 D.2 ` 9 ' ��, 11RAISE SOLID.c.RA"E T-V INV. r"t 10.25' ��(�` 9 VATfG ORt i�WC'SURI�.Er' I 70 7' © \� p RIP -RAP B APRON 9.75' N 8.7 .... _ 10.04' •VALLEY a� . FOREDAY 8'0 PYc; SCH 8 DI TO EOP •°" . J _ 3 10.14' 0 ... ACCESS 0.24'• / 8.. . MI 8.0 WELL �'A.9 1 1.4' . 7 ` \ 8:54' PROP NLE1 R . 51 �1 1 .. 0. = ,� 1.) 11 ' , 6' CDNp.q$lD�1VAL'K ,1. �, �aa. 0 V. 5.5 B,�Sv. A UT 231 ef, y DRC. 3 REPAIR pEAS RIM= ,0 10:84'• I OD LE �\ INV.. 8"D.I•D Fy DOE D ASPHALT' SLOPE 1p. ' 10sa.. ix 10.86' �` \ SWALE WEST 5' STRVCTURE, 8 21', 'a (TYP). \, 8. SHO WALL -'� •.7,6 - V�FYOR PROP (2) 7.8 �6'z. 8' RIP�RAP 7, .. DROP NLETA 84 APRON: DSO-2' �Lr$ TAAMa 0.78' S&P e.0 OYP)' SAS-©Z' Sflt/dC�trY. BLUE JAY ST. - 50' R/W sw *roifo a 401v'i.�T- 8.61' . C d� ..... ..... . . ....... RHG Ofim BuOdMg 5tnsmwatw PermhNo. SVVTI01IO2 Dare Canty Designers CarOcation 1, ZICAW i '' P6V' as a duly registered _ in the State of North Carolina, having been authoraed is observe (periodicadyJ�reeldyE{ed B., the cor struction of the project, Suc/7-1o.,©z XAIC; 95WW70c�d-;— a0i4,a1Ar6- (�jt� for (MddMAA1 c.Akl Omr"Y (Project Owner) hereby state t►>at, to the best of my aWlities, due care and fterme was, used in the observation of the project construction such that the won was observed to be btalt vAthin substantial compliance and intent of the approved plans and spacificatiorrs. The chaddst of items on page 2 of this form is included in the Certification, Noted deviations from approved ptatrs and specification: .0 4Ti)� CIGIT'e x SEAL Cormcdon RaquiMnents:. 1. The drainage area to the system contains ap y the penvTad acreage 12 The dnhhage area 10 the system contains no more than the permitted amourd of hA4*0n area. fl�7d - AD the buft-upon area associated with the project is graded such that the runoff drains to the System- ✓4. AA roof drains are located such that the nsrotf is directed into %a system. A5. Tire bypass structure weir esva5on is per the approved plan. N/� a The bypass sirucW e is located per the approved plans. &4t 7. A Trash Reds is provided on the bypass dnrdhue. ✓8. AO stapes are grassed with permaiwnt vegefdM ✓9. Vageteted slopes are rho steeper than 3:1. t"10. The inlets are located per the approved plans and do not cause short-circuiting of the system. �Zi1. The permitted amounts of surface area arl/or volume have bomb provided. ✓ 12 All required design depths are prowled. r✓13. Ail regtised parts of the system are provided. -Z14. The required system dimer ions are provided per the apProvad plans, CALFEE ENGINEERING MECHANICAL • CIVIL • STRUCTURAL • CONSTRUCTION MANAGEMENT January 5, 2011 Mr. Roger K. Thorpe NC Division of Water Quality 943 Washington Square Mall Washington, NC 27889 Dear Roger: ��� C;E19 4jFL71' JAN 0 7 2011 Re: Stormwater Management Permit Application Review SW7101102, RHG Office Building, 700 Bluejay St., Kill Devil Hills, Dare County, In response to your review comments (enumerated accordingly): 1. An insert page 2A of 3 has been added to the standard Operation and Maintenance Agreement to detail how inspection, operation and maintenance of the basin will be carried out. 2. An access well has been added to the northern side of the basin at the forebay to facilitate inspection and maintenance of the forebay. 3. A note has been added to drawing C-2 which specifies the benchmark and measurements to determine sediment levels. Drawings revised to: C-1, Revision 8, Site Plan C-2, Revision 6, Grading & Drainage Plan, and C-3, Revision 6, Erosion & Sedimentation Control & Landscape Plan are attached to accommodate the addition of the access well and the benchmark note, and the 0&M insert is attached. Please e-mail me at calfeeengineering@charter.net or call me at (252) 202-4025 if you have any questions or comments, or if you require additional information. S4aDCalfee, rely Rlp . P.E. cc: Ms. Terry Brown, RHG 3048 MARTIN'S POINT RD., KITTY HAWK, NC 27949-3816 (252) 261-3025 VOICE, 261-4025 FAX calfeeengineering@charter.net CALFEE ENGINEERING MECHANICAL • CIVIL • STRUCTURAL • CONSTRUCTION MANAGEMENT October 27, 2010 Mr. Al Hodge NC Division of 943 Washington Washington, NO Water Quality Square Mall 27889 i.dOv 12010 Re: Stormwater Management Permit Application for RHG Office Building, 700 Bluejay St., Kill Devil Hills, Dare County, 27948 Dear Al: Attached please find a check payable to NCDENR in the amount of $505.00 and 1 original signed set and 1 photocopy set of supporting documentation: Stormwater Management Permit Application Form Infiltration Basin Supplement (1 drainage area and basin) Stormwater Management Plan Narrative and Calculations Partial photocopy of NOAA Chart 12204 Required Items Checklist Infiltration Basin Operation and Maintenance Agreement NO General Warranty Deed copy NO Department of the Secretary of State, Croatoan Land Company, LLC Status Report Drawing C-1, Rev 6, 10/26/10, Calfee Engineering Drawing C-2, Rev 4, 10/26/10, Calfee Engineering Drawing C-3, Rev 4, 10/26/10, Calfee Engineering Please e-mail me at calfeeengineering@charter.net or call me at (252) 202-4025 if you have any.questions or comments, or if you require additional information. W Ralph D. Calfee, P.E. cc: Ms. Terry Brown, RHG 3048 MARTIN'S POINT RD., KITTY HAWK, NC 27949-3816 (252) 261-3025 VOICE, 261-4025 FAX calfeeengineering@charter.net B: 1832 P: 371 Doc Id: 6275435 NUb 2U10 05/IO/2010 04: 57 PM Receipt n: 10-5221 Doc COde: OEEO NCEaci se Ta) pd $500.00 Vanzolla MCMurran, Reg,ster of Deeds Dare CO, NC (' ll DARE - REAL ESTATE COUNTY -��.I,.a TRANSFER TAX LTls'�CJ-10 $ a a mill Pit, ti11���tW4'I ie I I G46G�+h,l�llliE011l NORTH CAROLINA GENERAL WARRANT Excise Tax: 500.00 LT Tax $2500.00 LT# Parcel Identifier No. 0t:;4V5q. pyy Verified by County o t e d y of ' 20_ By: Mail/Box to: Rose, Harrison & Gilreath. PO Box 1087, Nags Head, NC 2 959 This instrument was prepared by: Dan L. Merrell Brief description for the Index: Lots I and 2, Blk 13, Kill Devil Hills Realt THIS DEED made this 10 day of May, 2010, by and betwe (X GRANTOR \ GRANTEE Outer Banks Brewing, LLC Cro toan Land Company, LLC a North Carolina limited liability company la,North Carolina limited liability company rPO Box 1087 / Nags Head, NC 27959 a Enter in appropriate block for each ,G ,intor < it Grantee: ntn me. mailing address, and, if appropriate, character of entity, e.g. corporation or partnership. The designation Grantor and ran, Tg used rem sh la I include said parties, their heirs, successors, and assigns, and shall include singular, plural, masculine a itn ne ohpcutcl`as uired by context. WITNESSETH, that the Gr�t r,\o�aluablcconsideration paid by the Grantee, the receipt of which is hereby acknowledged, has and by these presents does gn�n�t, bar am, self apd convey unto the Grantee m fee simple, all that certain lot or parcel of land situated in the Town of Kill Devil Hills Atlait?�gwnship, Dare County, North Carolina and more particularly described as follows: Lots No. I and 2, Block 13, as shown and delineated on the plat of the subdivision of the lands of the Kill Devil Hills Realty Corporation, made by IJ. Henry, ul�veyor, May 1953 and June 1954, and recorded in Map Book 2, Page 18, in the office of the Register of Deeds of Dare Cou y, North Carolina, reference to which is hereby made for a more particular description thereof. The pr c here" as ve described was acquired by Grantor by instrument recorded in Book 1309, page 279, All or a porn n'of the property herein conveyed _ includes or X does not include the primary residence of a Grantor. A -map showi e above described property is recorded in Plat Book 2, page 18. NC Bar As&oci'ation Fom1 No. 3 © 1976, Revised © 1/1/2010 Printed by Agreement with the NC Bar Association TO HAVE AND TO HOLD the aforesaid lot or parcel of land and all privileges and appurtenances thereto belonging to the Grantee in fee simple. And the Grantor covenants with the Grantee, that Grantor is seized of the premises in fee simple, has the right to convey the same in fee simple, that title is marketable and free and clear of all encumbrances, and that Grantor will warrant and defend the title against the lawful claims of all persons whomsoever, other than the following exceptions: Easements and restrictions appearing of record. Taxes subsequent to the year 2009 not yet due and payable. IN WITNESS WHEREOF, the Grantor has duly executed the foregoing as of the day and year first I Outer Banks win ( / Name) print/Type Name: By i_. _ Print/Type Name & Title: Aub -T-. Davis, Jr., Manager Print/Type Name o By: O _ lC Pri ype Name & Title: Eric T. Reece, Manager Prind' ype am By: Print/Type Name & Title: State of - V - County of I, the undersigned Notary Public of the County of Aubrey T. Davis. Jr. and Eric T. Reece personally came b Banks Brewing, LLC, a North Carolina limited liability cc they signed the foregoing instrument in its name on its belt, /O day of20j0 . O I and State aforesaid, certify that day and acknowledged that they are the managers of Outer hat by authority duly given and as the act of such entity, hdled. Witness my hand and Notarial stamp or seal, this My Commission Expires: 6 ���� G� OA (Affix Seal) O ,� `\ci O O35 B: 1832 P . 371 Page 2 of 2 M P114IV,'Nil 111 rIP1101W YOD O Fonn No.3 O 1976, Revised © 1/1/2010 Printed by Agreement with the NC Bar Association fijCe. A-. 2&p_nen Notary Public Notary's Printed or Typed Name 5/10/10 4:57 PM INSA+llimill 11 III ll PW MC®ENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Governor Coleen H. Sullins Director December21, 2010 Mr. M. Peebles Harrison, Member/Manager Croatoan Land Company, LLC P.O. Box 1087 Nags Head, NC 27959 Dear Mr. Harrison: (.vq'1�6 Dee Freeman Subject: Stormwater Review SW7101102 RHG Office Building Dare County This office received a Coastal Stormwater permit application and supporting information on November 1, 2010 for a proposed RHG Office Building to be served by a stormwater infiltration basin. Since the stormwater infiltration basin is proposed to be located under the office building with very low clearance for cleaning and maintenance, before a State Stormwater permit can be issued the following additional information is needed: 1. Instead of using the standard Operation & Maintenance Agreement form on our website please develop an Operation & Maintenance Agreement that is more suited to this particular situation. The O & M Agreement should describe in detail how you will inspect the system and how you will conduct operation and maintenance in this confined area. 2. The proposed access point shown on the plans is located at the opposite end of the building from the stormwater inlets and the forebay. The Forebay is where the majority of the sediment should accumulate and therefore . access for checking the amount of sediment and for removing it should be located in close proximity. 3. A bench mark for measuring the depth of the sediment should be provided. North Carolina Division of Water Quality Internet �cm[c.nc[eatcmualincor!• 943 Washington Square Mall Phone: 252-946-6481 Washington, NC 27889 FAX 252-946-9215 An Equal Opportunity/Affirmative Action Employer - 50 % Recycled/l0% Post Consumer Paper ne NorthCarolina Amorally Page 2 December 21, 2010 The above requested information must be received in this office prior to January 21, 2011 or your application will be returned as incomplete. The return of this project will necessitate resubmittal of all required items including the application fee. If you need additional time to submit the required information, please mail or fax your request for time extension to me at the Letterhead address and include the application number on the request. The request must include justification for the amount of additional time needed. The request will only be granted for justifiable delays that are unforeseen and beyond the owner or consultant's control. You should also be aware that the Stormwater Rules require that the permit be issued prior to any development activity. Construction or operation without a permit is a violation of 15A NCAC 21-1.1000 and North Carolina General Statute 143-215.1 and may result in civil penalties of up to $25,000 per day. If you have questions, please feel free to contact me at (252) 948-3923. Sincerely, Roger K. Thorpe Environmental Engineer cc: Washington Regional Office Calfee Engineering North Carolina Secretary of State Page 1 of 1 North Carolina Elaine F. Marshall DEPARTMENTOF THE Secretary SECRETARY OF STATE PO Sox 29622 Raleigh, NC 27626-0622 (91907-2000 Date: 10/27/2010 Click here to: View Document Filings I Sign Up for E-Notifications I Print apre-populated Annual Report Form I Annual Report Count File an Annual Report I Corporation Names Name Name Type NC CROATOAN LAND LEGAL COMPANY, LLC Limited Liability Company Information ,.,.. .,�t,.j SOSID: 1133831 Status: Current-ActiveZulu Date: 1/28/2010 Dissolution Date: Annual Report Due Date: Citizenship: DOMESTIC State of Inc.: NC Duration: PERPETUAL Registered Agent Agent Name: HARRISON, M. PEEBLES Office Address: 119 WOODHILL DRIVE SUITE 3 NAGS HEAD NC 27959 Mailing Address: PO BOX 1087 NAGS HEAD NC 27959 Principal Office Office Address: 119 WOODHILL DRIVE SUITE 3 NAGS HEAD NC 27959 Mailing Address: PO BOX 1087 NAGS HEAD NC 27959 Officers This website is provided to the public as a part of the Secretary of State Knowledge Base (SOSKB) system. 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Please indicate the page or plan sheet numbers where the supporting documentation can be found. An incomplete submittal package will result in a request for additional information. This will delay final review and approval of the project. Initial in the space provided to indicate the following design requirements have been met. If the applicant has designated an agent, the agent may initial below. If a requirement has not been met, attach justification. Page/ Plan Initials Sheet No. CC-2, Rev. 4 1. Plans (1" - 50' or larger) [t" = 20] of the entire site showing: f - Design at ultimate build -out, - Off -site drainage (not applicable), - Delineated drainage basin (Simple method Rv = 0.635), - Basin dimensions, - Pretreatment system (catch basins), - No high flow bypass system; 10-year, 24-hour storm does not discharge at 1/12 rated infiltration rate, - Maintenance access, - Approved site plan in lieu of drainage easement and public right of way (ROW), - No overflow device; 10-year, 24-hour storm does not discharge at 1/12 rated infiltration rate, and _ - Approved site plan in lieu of boundaries of drainage easement. C-2, Rev. 4 2. Partial plan (1" = 30' or larger) [1" = 20] and details for the infiltration basin showing: - No bypass structure, - Maintenance access, - Basin bottom dimensions, - Basin cross-section with benchmark for sediment cleanout, - Flow distribution detail for inflow, - Vegetated filter, and - Pretreatment device. C-2, Rev. 4 3. Section view of the infiltration basin (1" = 20' or larger) showing: - Pretreatment and treatment areas, and - Inlet and outlet structures. N/A 4. A table of elevations, areas, incremental volumes & accumulated volumes to verify the volume provided. Narr & Calcs 5. A soils evaluation that is based upon an actual field investigation and soil borings: The results of the soils report must be verified in the field by DWQ, by completing & submitting the soils investigation request form. County soil maps are not an acceptable source of soils information. C-3, Rev. 3 6. A construction sequence that shows how the infittration basin will be protected from sediment until l the entire drainage area is stabilized. Narr & Calcs 7. The supporting calculations. Attached 8. A copy of the signed and notarized operation and maintenance (0&M) agreement. N/A 9. A copy of the deed restrictions (if required). Form SW401-Infiltration Basin-Rev.4 Parts I. & II. Design Summary, Page 1 of 1 STORMWATER MANAGEMENT PLAN NARRATIVE & CALCULATIONS RHG OFFICE BUILDING N"; q 1 2010 700 BLUEJAY STREET KILL DEVIL HILLS, NORTH CAROLINA Prepared For Rose Harrison & Gilreath, P.C. 119 W. Woodhill Drive, Suite #3 Nags Head, NC 27959 m Calfee Engineering 3048 Martins Point Road Kitty Hawk, NC 27949 Telephone (252) 202-4025 Fax (252) 261-4025 Prepared October 26, 2010 2 Contents: Section Page Table of Contents 2 Project Data 3 General 3 Stormwater Management and Controls 4 Wetlands 5 Soils 5 Calculations 6 Calculation Attachments 11 Referenced Documents: Sheet #3, Soil Survey Maps (partial photocopy), Soil Survey of Dare County, North Carolina, USDA/SCS, March, 1992; Attachment #7 Table 16, "Physical and Chemical Properties of the Soils", Soil Survey of Dare County, North Carolina, USDA/SCS, March, 1992; Attachment #8 Point Precipitation Frequency Estimates Fom NOAA Atlas 14, downloaded 8/19/10, nws.noaa.gov; Attachment #9 Drawing C-2, "Grading & Drainage Plan", Rev. 4, 10/26/10, Calfee Engineering Drawing C-1, "Site Plan", Rev. 6, 10/26/10, Calfee Engineering Drawing C-3, "Soil Erosion & Sedimentation Control & Landscape Plan", Rev. 4, 10/26/10, Calfee Engineering 3 PROJECT DATA Development Name: RHG Office Building Owner: Rose Harrison & Gilreath, P.C. 119 W. Woodhill Drive, Suite #3 Nags Head, NC 27959 Engineer: Ralph D. Calfee, PE; NC Registration #12286 Calfee Engineering, Kitty Hawk, NC 3048 Martins Point Road Kitty Hawk, NC 27949 Receiving Waterbody: Atlantic Ocean Classification: "SB" GENERAL The Stormwater Management Plan is shown on Drawing C-2, Rev. 4. RHG Office Building is a proposed owner -occupied and leased -space office building in Kill Devil Hills with 2,871 square feet of building footprint and 10,865 square feet of impermeable pavement and miscellaneous coverage, for a total of 65% Built Upon Area on a 21,167 square foot, currently undeveloped site. The project is proposed to be constructed in one phase. For additional information see: Sheet #3, Soil Survey Maps (partial photocopy), Soil Survey of Dare County, North Carolina, USDA/SCS, March, 1992 Drawing C-1, Rev. 6, for the overall Site Plan. The project has been approved by the Town of Kill Devil Hills Board of Commissioners. Sewage treatment and disposal is by an on -site system with treated effluent being discharged to an on -site drainfield with an allocated repair area. The active drainfield and the repair area are 35 feet 4 or more from the stormwater basin in accordance with Health Department regulations. Potable water is provided by the Kill Devil Hills distribution System. STORMWATER MANAGEMENT AND CONTROLS: Stormwater runoff from the proposed development does not drain to Outstanding Resource Waters or to class "SA" waters, and the design basis for this Plan is the runoff associated with 1.5" of rainfall. The maximum rainfall intensity has been selected as 6"/hr. Built Upon Area is 65% and the design basis is the High Density option. All impervious driveway, parking and miscellaneous areas north, south and west of the slot drain in the eastern driveway and south of the slope -break crown in the northern driveway drain to drop inlet catch basins with sumps, which discharge to the stormwater basin under the pile supported structure. All roof areas drain via roof drains to the stormwater basin under the pile -supported structure. All impervious areas drain to one stormwater basin and no separate tributary plan is provided. Stormwater runoff from the design storm will be infiltrated in a dry basin located under the pile -supported structure. The basin is sited on native soil classified by the Soil Survey of Dare County with permeability in excess of 20 inches per hour. Calculated draindown time for the basin design storm, using a reduction (safety) factor of 12 for the infiltration rate, is 0.15 day or 3.6 hours. The basin capacity is approximately 2.5 times the design runoff volume excluding any consideration of stormwater infiltration during the design storm. The calculations confirm that a 10-year, 24-hour storm (and all 10-year, shorter time storms) can be infiltrated without discharging the basin, even using an infiltration rate less than 10% of the rated soil infiltration rate, and no off-line bypass, vegetated filter strip or additional storage volume is required. No off-line bypass is provided. Runoff from paved areas is conveyed by surface flow to drop inlet catch basins with sediment sumps, which in turn discharge to the stormwater basin at rip -rap aprons to eliminate erosion of the basin bottom at the discharges. No unpaved areas drain to the basin. The site is proposed to be elevated approximately 2 feet above surrounding local grade. The surrounding developed lands are generally well vegetated and maintained. The surrounding undeveloped 5 areas are generally forested. No sedimentation of the basin is anticipated to occur. Soil erosion and sedimentation controls during construction are proposed to prevent construction sedimentation of the basin, and any sedimentation which accidentally occurs will be cleaned out prior to occupancy of the building (see Drawing C-3). Runoff from the building roof will be conveyed by roof drains and downspouts to the basin under the building. No formal roof drain and downspout design is proposed in favor of construction in accordance with local commercial construction practice. Nothing more than acceptable minor erosion of the basin bottom at downspout discharges is anticipated. The proposed elevation of the bottom of the basin is 8.0 feet, which is approximately 6 inches to 1 foot below the existing variable ground surface elevation at the basin. The elevation of the Bluejay street pavement in the vicinity of the site is approximately 8 feet, with shoulder Swale invert elevations of about 6.75 feet, and the Hillside pavement in the vicinity of the site is at about 8.75 feet. The seasonal high water table is about 6.0 feet to 6.5 feet, providing a 1.5 foot to 2 foot separation between the bottom of the basin and the seasonal high water table, which is ample separation to allow timely draindown of the basin. Basins, embankments and other disturbed land shall be stabilized in accordance with the existing Soil Erosion and Sedimentation Control Plan approved by the Town of Kill Devil Hills. Note that the bottom of the basin overflow/access well is the same elevation as the bottom of the basin, and serves as an observation well. WETLANDS There are no jurisdictional or functional wetlands on the site. SOILS The partial photocopy of Sheet #3 of the Soil Survey Maps, Soil Survey of Dare County, North Carolina, USDA/SCS, March, 1992, shows site soils are classified as CoB (Corolla) and DtA (Duckston) sand with permeability in excess of 20 inches per hour. Field investigations with multiple shallow borings in the vicinity of the infiltration basin are consistent with the classifications. No significant stormwater runoff from vegetated soil surfaces is anticipated. 0 CALCULATIONS Site area 21,167 sf Built Upon Area Building 2,871 sf Porch - Deck 408 Parking/drives 9,573 Sidewalks & Stairs 820 Miscellaneous: 64 Total coverage: 13,736 sf Percent lot coverage: 64.9 % Calculation Assumptions and Design Criteria: Design storm rainfall = 1.5" Design storm duration = 15 minutes Design storm rainfall intensity = 6"/hr Runoff Coefficients: Roof: 1.0 Pavement: 1.0 Infiltration capacity: Permeability of CoB and DtA soils: > 20"/hr Assume 24"/hr; apply safety factor 12 = 2"/hr = 1.7'/hr Seasonal High Water table 6.0' to 6.5' Basin Capacity: Note: There is no incident rainfall into the basin, which is located under the pile -supported building. The basin perimeter is a retaining wall supported by the building piling. Area of basin bottom 2,860 sf Bottom elevation 8.00, Spillway elevation 9.48' Capacity to 9.48' elevation 2860 sf x 1.48' = 4,233 of 7 Sub -area Tributary Rates & Velocities: Note: pipe flow conditions in attachments calculated from Haested's Open Channel Flow Module Northern Parking Area 1,890 sf Max flow rate at 6.0"/hr 1890 x 6.0 - 12 in/ft = 3600 sec 0.28 cfs Pipe invert at drop inlet 8.50' Lay length 50' Slope 0.01 ft/ft See attachment #1: 8" RCP (or PVC) Flow depth 0.20' Velocity 2.92 fps Pipe flowing full: See attachment #2 Slope required <0.0001 ft/ft Drop inlet rim elevation 9.67' Max flood pool elevation 9.48' Available slope 0.0038 OK Northeast Parking Area 3,528 sf Max flow rate at 6.0"/hr 3528 x 6.0 + 12 in/ft = 3600 sec 0.49 cfs Pipe invert at drop inlet 8.61' Total lay length 80, Overall slope 0.0076 ft/ft See attachment #3: 8" RCP (or PVC) Flow depth 0.30' Velocity 3.14 fps I East -central & Northeast Parking Area (above) Max flow rate at 6.0"/hr 4896 x 6.0 - 12 in/ft + 3600 sec Overall slope See attachment #4: 10" RCP (or PVC) Flow depth Velocity East Parking Area (incl E-c & NE area above) Max flow rate at 6.0"/hr 7488 x 6.0 + 12 in/ft + 3600 sec Overall slope See attachment #5 Flow depth Velocity Pipe flowing full: 10" RCP (or PVC) See attachment #6 Slope required Drop inlet rim elevation Max flood pool elevation Available slope Soil Erosion and Stabilization: Max discharge velocity 4,896 sf 0.68 cfs 0.0076 ft/ft 0.33' 3.40 fps 7,488 sf 1.04 cfs 0.0076 ft/ft 0.42' 3.80 fps 0.0002 ft/ft 9.78' 9.48' 0.0038 OK 3.8 fps Select Graded Rip -Rap Stone NSA 4R-3, Max dia 6", Avg (d50) dia 3", Min dia 2", apron depth 12" (from National Stone Association "Quarried Stone For Erosion And Sediment Control", publication MP#106822-2900-3M, 1-89 SEC-4) C/ Proposed RHG Stormwater Basin Performance 700 Blue Jay St., Kill Devil Hills Inflow and Draindown Revised 10/25/10 Soil Survey of Dare County, North Carolina March, 1992 Soils mapped as CoB (Corolla) and DtA (Duckston); see Attachment #7 Permeability: CoB > 20 in/hr; DtA >20 in/hr, Say 24 in/hr; see Attachment #8 Apply Safety Factor: 12 Conservative Permeability: 2 in/hr = 0.17 ft/hr Design Storm: 1.5 in Simple Method runoff: Runoff area coefficient RE Rr = 0.05 + 0.9 x la Where: la = Impervious fraction = 0.65 Rr = 0.05 + 0.9 x 0.65 = 0,635 Runoff Volume (Vr): Vr = 3,630 x Rr x Rd x Ad Where: Rd = Rainfall depth (inches) Ad = Drainage area = 0.486 (acre) Vr = 3,630 x 0.635 x Rd x 0.486 = 1120 x Rd Design Runoff volume at 1.5 in = 1680 ft3 Basin volume = 2860 sf bottom x 1.48 It depth = 4233 ft3 Basin draindown: From 16.3.6: Ai = Vi / (2 x Ki x Td) Where: Ai = Infiltration area (basin bottom) = 2860 (sf) or, re -arranging: Vi = Infiltration volume (ft3) Td = Vi / (2 x Ki x Ai) Ki = Conductivity = 2 (in/hr) Td = Infiltration time (days) Basin draindown time (Td) from design runoff volume 1680 (ft3) Td = 0.15 (days) <= 5 days; OK /O Basin draindown rate: From 16.3.6 above: Ai = Vi / (2 x Ki x Td) Substituting: Ki = 12 x Kf Where: Kf = Conductivity (ft/hr) Td = Th / 24 Th = Time (hr) Ai = Vi / (2 x 12 x KF x (Th / 24)) = Vi/(Kf xTh) Re -arranging for draindown rate Dr = Vi / Th: Vi / Th = Dr = Ai x Kf = 486 (ft3/hr) Basin net fill/draindown rate: From above, runoff Volume Vr (ft3) = 1120 x Rd, Rd in inches then: (RR) Runoff Rate (ft3/hr) = Vr / Th and net fill/draindown rate = runoff rate - draindown rate = RR - Dr Basin net fill: Basin net fill volume Bnv = basin net fill/draindown rate x time = (RR - Dr) x Th Basin net fill depth Bnd = Bnv / basin bottom area = Bnv / 2860 sf 10-year return basin draindown characteristics Incident rainfall from Point Precipitation Frequency Estimates see: "Point Precipitation Frequency Estimates From NOAA Atlas 14", downloaded 8/19/10; Attachment #9 Rainfall rate = incident rainfall divided by time (in/hr) Runoff Rate RR = Vr / Th Basin net storage/draindown rate = RR - Dr Basin net storage volume Bnv = basin net fill/draindown rate x time = (RR - Dr) x Th Basin net storage depth Bnd = Bnv / basin bottom area = Bnv / 2860 sf Basin characteristics, 10 year return: 5 min 10 min 15 min 30 min 60 min 120 min 3 hr 6 hr 12 hr 24 hr Incident in 0.70 1.11 1.41 2.04 2.65 3.16 3.52 4.31 5.18 6.26 Rainfall rate in/hr 8.40 6.66 5.64 4.08 2.65 1.58 1.17 0.72 0.43 0.26 Runoff rate RR ft3/hr 9408 7459 6317 4570 2968 1770 1310 806 482 291 Net st /draindown rate 8922 6973 5831 4084 2482 1284 824 320 -4 -195 Net stg volume Bnv ft3 744 1162 1458 2042 2482 2568 2472 1920 -48 -4680 Net stg depth Bnd ft 0.261 0.411 0.51 0.71 0.87 0.90 0.861 0.67 -0.02 -1.64 Note: Maximum net storage depth considering basin draindown with an infiltration rate safety factor of 12 is 0.9 ft. Basin depth at capacity is 1.48 ft, therefore basin does not fill or overflow for any 10-year event including a 10-year, 24-hour event. ATae K/K6w *c / Circular Channel Analysis & Design Solved with Manning's Equation Open Channel - Uniform flow Worksheet Name: RHG Storm Drain Comment: North Parking Solve For Actual Depth Given Input Data: Diameter.......... Slope ............. Manning's n....... Discharge......... Computed Results: Depth ............. Velocity.......... Flow Area......... Critical Depth.... Critical Slope.... Percent Full...... Full Capacity..... 4MAX @.94D........ Froude Number..... 0.67 ft 0.0100 ft/ft 0.012 0.26 cfs 0.20 ft 2.92 fps 0.09 sf 0.24 ft 0.0055 ft/ft 30.01 % 1.33 cfs 1.43 cfs 1.35 (flow is Supercritical) Open Channel Flow Module, Version 3.21 (c) 1990 Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708 A ti 4E 0J,✓I E-WT 4K F. Circular Channel Analysis & Design Solved with Manning's Equation Open Channel - Uniform flow Worksheet Name: RHG Storm Drain Comment: North Parking flowing full Solve For Actual Slope Given Input Data: Diameter.......... 0.67 ft Manning's n....... 0.012 Discharge......... 0.09 cfs Depth ............. 0.67 ft Cgmputed Results: Channel Slope..... 0.0000 ft/ft Velocity.......... 0.26 fps Flow Area......... 0.35 sf Critical Depth.... 0.14 ft Critical Slope.... 0.0056 ft/ft Percent Full...... 100.00 8 Full Capacity..... 0.09 cfs QMAX @.94D........ 0.10 cfs Froude Number..... FULL Open Channel Flow Module, Version 3.21 (c) 1990 Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708 A 7746 jrA-TZ-V1- "' .� Circular Channel Analysis & Design Solved with Manning's Equation Open Channel - Uniform flow Worksheet Name: RHG Storm Drain Comment: East parking, North End Solve For Actual Depth Given Input Data: Diameter.......... Slope ............. Manning's n....... Discharge......... Computed Results: Depth ............. Velocity.......... Flow Area......... Critical Depth.... Critical Slope.... Percent Full...... Full Capacity..... QMAX @.94D........ Froude Number..... 0.67 ft 0.0076 ft/ft 0.012 0.49 cfs 0.30 ft 3.14 fps 0.16 sf 0.33 ft 0.0059 ft/ft 45.44 8 1.16 cfs 1.24 cfs 1.15 (flow is Supercritical) Open Channel Flow Module, Version 3.21 (c) 1990 Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708 4.7ae vM,�7Xf `16r I Circular Channel Analysis & Design Solved with Manning's Equation Open Channel - Uniform flow Worksheet Name: RHG Storm Drain Comment: East parking,:M End t CvLntQr Solve For Actual Depth Given Input Data: Diameter.......... Slope.. ......... Manning's n....... Discharge......... Computed Results: Depth............. Velocity.......... Flow Area......... Critical Depth.... Critical Slope.... Percent Full...... Full Capacity..... QMAX @.94D........ Froude Number..... 0.83 ft 0.0076 ft/ft 0.012 0.68 cfs 0.33 ft 3.40 fps 0.20 sf 0.36 ft 0.0053 ft/ft 39.69 8 2.05 cfs 2.20 cfs 1.21 (flow is Supercritical) Open Channel Flow Module, Version 3.21 (c) 1990 Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708 Circular Channel Analysis & Design Solved with Manning's Equation Open Channel - Uniform flow Worksheet Name: RHG Storm Drain Comment: East parking Solve For Actual Depth Given Input Data: Diameter.......... Slope. ......... Manning's n....... Discharge......... Computed Results: Depth ............. Velocity.......... Flow Area......... Critical Depth.... Critical Slope.... Percent Full...... Full Capacity..... QMAX @.94D........ Froude Number..... 0.83 ft 0.0076 ft/ft 0.012 1.04 cfs A11 NkraVT �s- 0.42 ft 3.80 fps 0.27 sf 0.45 ft 0.0058 ft/ft 50.47 % 2.05 cfs 2.20 cfs 1.17 (flow is Supercritical) Open Channel Flow Module, Version 3.21 (c) 1990 Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708 Q 7749 Akrex/i :0' 6 Circular Channel Analysis & Design Solved with Manning's Equation Open Channel - Uniform flow Worksheet Name: RHG Storm Drain Comment: East Parking flowing full Solve For Actual Slope Given Input Data: Diameter.......... 0.83 ft Manning's n....... 0.012 Discharge......... 0.37 cfs Depth ............. 0.83 ft Computed Results: Channel Slope..... 0.0002 ft/ft Velocity.......... 0.68 fps Flow Area......... 0.54 sf Critical Depth.... 0.26 ft Critical Slope.... 0.0051 ft/ft Percent Full...... 100.00 % Full Capacity..... 0.37 cfs QMAX @.94D.....:.. 0.40 cfs Froude Number..... FULL Open Channel Flow Module, Version 3.21 (c) 1990 Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708 fe 74 SHEET NO. 3 SOIL SURVEY OF DARE COUNTY, NORTH CA N 2 Miles Cale 1:24000 5000 Feet 10000 Feet NORTH CAROLINA NO. 3 SHEET Nt 96 Soil Survel TABLE 16.--PHYSICAL AND CHEMICAL PROPERTIES OF THE SOILS (The symbol < means less than, > means more than. Entries under "Erosion factors--T" apply to the entire Profile. Entries under "Organic matter" apply only to the surface layer. Absence of an entry indicates that data were not .available or were not estimated) Soil name and IDepthl Clay I Moist IPermeability IAvailablel Soil (Shrink -swell I factor' I Organic map symbol I I I bulk I I water Ireactionl potential I I 1 matter I I I density I Icapacity I I I R I T I I In I Pct I g/cc I In/hr I In/in I pH I I I Pot I I I I I 1 I I I 1 BaC-------------- I 0-321 0-8 11.60-1.751 6.0-20 10.02-0.0614.5-6.5 (Low ---------- 10. 101 5 I .5-1 ` Baymeade 132-461 8-26 11.45-1.601 2.0-6.0 10.10-0.1414.5-6.5 ILOw---------- 10.101 1 146-801 0-12 11.60-1.751 6.0-20 10.02-0.1014.5-6.5 ILow---------- 10.101 1 - I I I I I I I I I I BaA*. I I I I I I I I I Beaches I I I I I I I I I I I I I I I I I I I I BnD*: I I I I I I I I I I Beaches. I I I I I I I I I I Newhnn---------- I 0-801 <5 I1.60-1.751 .>20 I <0.05 I5.6-7.8 (Low ---------- 10.101 5 I <.5 1 1 1 1 1 1 1 1 1 1 BvA-------------- 1 0-381 --- 10.40-0.651 0.2-6.0 10.20-0.261 <4.5 ILOw---------- I ---- I --- 1 20-95 Belhaven 138-471 5-15 11.45-1.651 2.0-6.0 10.10-0.2413.6-5.5 ILow---------- 10.241 1 . 147-721 10-35 11.30-1.451 0.2-0.6 10.12-0.2013.6-6.5 [Low ---------- 10.241 1 I I I I I I I I I I CaA-------------- 1 0-131 5-15 11.30-1.501 0.6-6.0 10.15-0.2214.5-6.5 ILOw---------- 10.151 5 1 5-15 Cape Fear 113-481 35-60 11.25-1.401 0.06-0.2 10.12-0.2213.6-6.0 Moderate ----- 10.321 1 148-721 5-30 11.40-1.701 --- I --- I --- I ------------- 1=---I I I I I I I I I I I I CeA-------------- 1 0-801 5-12 11.45-1.601 >6.0 10.02-0.1015.6-8.4 ILow---------- 10.151 5 1 .5-2 . Carteret I I I I I I I I I I - I I I I I I I I I I CnA-------------- 1 0-141 --- 10.40-0.651 0.2-2.0 10.20-0.2613.6-5.5 ILOw---------- I ---- I --- 1 20-60 Conaby 114-601 5-12 11.60-1.751 2.0-6.0 10.04-0.1013.6-5.5 ILow---------- 10.101 1 I I I I I I I I I I CoB-------------- 1 0-751 0-3 11.60-1.701 >20 10.01-0.0315.6-7.8 ILow---------- 10.101 5 1 <.5 Corolla I I I I I I I I I I f I I I I I I cr8+: Corolla --------- 1 0-751 0-3 I1.60-1.701 >20 10.01-0.0315.6-7.8 (Low ---------- 10.101 5 1 <.5 I I I I I I I I I I Duckston -------- 1 0-8 1 0-4 11.60-1.70,1 >20 10.02-0.0813.6-8.4 ILow---------- 10.101 5 1 .5-3 S 1 8-801 0-4 11.60-1.701 >20 10.02-0.0513.6-8.4 ILow---------- 10.101 1 G 1 1. 1 1 1 1 1 1 1 1 CuA-------------- 1 0-171 --- 10.25-0.401 0.6-6.0 10.25-0.3514.5-5.5 (Low ---------- 1--c-1 2 1 --- . Currituck 117-401 --- 10.35-0.551 0.6-6.0 10.25-0.3513.6-5.5 ILow---------- I ----I I z 140-651 3-10 11.60-1.751 6.0-20 10.04-0.0913.6-5.5 ILow---------- I ---- I I 7 I I I I I I I I I I DtA-------------- 1 0-8 1 0-4 11.60-1.701 >20 10.02-0.0813.6-8.4 (Low ---------- 10.101 5 1 .5-3 t Duckston 1 8-801 0-4 11.60-1.701 >20 10.02-0.0513.6-8.4 ILow---------- 10.101 1 I I I I I I I I I I ` DUE* ------------- 1 0-601 0-1 1' =-- 1 >20 10.03-0.041 --- ILow---------- 10.101 5 1 <.1 Dune land DwE*: I I I I I I I I I I Dune land ------- 1 0-601 0-1 1 --- 1 >20 10.03-0.041 --- ILow---------- 10.101 5 1 <.1 I, 1 1.. I I I I I I I Newhan---------- 1 0-801 <5 11.60-1.751 >20 1 <0.05 15.6-7.8 ILow---------- 10.101 5 1 <.S I I I I I I I I I I FrD-------------- 1 0-4 1 <5 11.30-1.701 6.0-20 10.02-0.0815.1-7.8 ILow---------- 10.101 5 1 <1 Fripp 1 4-801 <5 11.30-1.701 6.0-20 10.01-0.0315.6-7.8 ILow---------- 10.101 1 I I I I I I I I I I HoA-------------- 1 0-161 --- 10.20-0.651 0.6-6.0 10.20-0.2514.5-5.5 ILow---------- I ---- I --- 1 20-60 Hobonny 116-721 --- 10.40-0.701 0.6-2.0 10.20-0.2513.6-5.5 ILow----------10.151 1 I I I I I I I I I I See footnote at end of [able. ' Precipitation Frequency Data Server /Z /./ Page 1 o14 .�ZT,d2'��✓ 'Y 9 POINT PRECIPITATION FREQUENCY ESTIMATES FROM NOAA ATLAS 14 North Carolina 35.976 N 75.641 W 0 feet from "Precipitatioa•Frequeay Atlas of the United States" NOAA Atlas 14, Volume 2, Version 3 G.M. Bamun, D. Martin, B. Lin, T. Parzybok M.Yelna, and D. Rilay NOAA. National weather service, Silver spring, Maryland, 2004 Extracted: Thu Asia 192010 Precipitation Frequency Estimates (inches) ARI" (y )- ears 5 min 10 arm ����� 15 min 30 min 60 min 20 3 hr 6 hr 12 hr 24 hr 48 hr 4 dev 7 day 10 a ����� 20 da 30 da 45 d 60 arm 1�0.45 0.72 0.91 1.24 1.55 ].76 1.93 2.37 2.82 3.35 3.91 4.39 5.04 5.69 7.57 9.30 11.44 13.68 -2 0.85 1.07 1.48 1.86 2.12 2.34 2,86. 3.41 4.08 4.74 5.32 6.07 6.82. 9.01 11.05 13.34 16.13 00.62 0.99 1.25 1.77 2.28 2.65 2.93 3:60 4.30 5.27 6.08 6.76 7.62 8.44 ]0.95 13.28 16.17 19.04 10.. 0.70 1.11 1.41 2.04 2.65 3.16. 3.52.. 4.31. 5.18 6.26 7.23 7.95 8.89 9.78 12.54 15.07 18.33 2137 25 0.79 1.25 1.59 2.35 3.13 3.80 4.29 5.28 6.38 7.73 8.96 9.68 10.73 11.69 14.79 17.52 21.36 24.55 0 0.86 1.37 1.73 2.61 3.54 4.37 4.97 6.16 7.49 9.00 10.46 11.14 12.26 13.28 16.63 19.48 23.83 27.06 100 0.93 1.48 1.87 2.86 3.94 4.95 5.70 7.08 8.66 10.39 12.13 12.72 13.89 14.97 18.56 21.48 26.38 29.59 1.00 1.58 2.00 3.11 4.36 5.58 6.50 8.09 9.98 11.93 13.99 14.43 15.65 16.78 20.59 23.53 29.05 32.17 500 1.09 1.72 2.17 3.44 4.94 6.45 7.63 9.55 11.88 14.21 16. 1 F17.17 18.19 19.37 23.45 26.34 32.77 35.66 1000 1.17 1.83 2.30 3.73 5.44 7.20 8.64 10.87 13.62 16.16 19.24 19.57 20.30 21.50 25.76 28.54 35.73 38.34 -Theseprec41 1 bequency w9 1 enbeardonatarsaldwOonodes.ARIla Me AvaWRaunamIntaM. Pbwe rend te NOAA Atlee 14 DoeumeM fcrmora IrdomMon. NOTE: Parenting IaMa MCrneOw wazao te qp�w zao. " Upper bound of the 90% confidence interval Precipitation Frequency Estimates inches ARP"" 5 10 15 30 60 120 3 6 11 24 48 4 7 10 20 30 45 60 (years) min aria min min min min hr hr hr hr hr da da day day day day day 11 0.50 0.80 0.99 1.36 1.70 1.93 2.13 2.61 3FI47 3.65 4.30 4.81 5.52 6.17 8.13 9.92 12.17 14.46 0.58 0.94 1.18 1.62 2.04 Efl 2.57 3.15 3.80 4.44 5.20 5.83 6.66 7.40 9.69 11.78 14.40 17.07 0 0.68 1.08 1.37 1.94 2.49 2.91 3.23 3.97 4.79 5.71 6.66 7.40 8.34 EE 11.76 14.14 17.20 20.12 10 0.76 ].22 1.54 2.23 2.90 3.45 3.85 4.74 5.75 6.78 7.91 8.69 9.72 ]0.58 1 - 16.03 19.48 22.59 � 0.85 1.36 1.73 2.56 3.41 4.15. 4.69 5.78 7.05 8.36 9.78 10.57 11.71 12.64 15.87 18. 66 22.69 25.95 50 0.93 1.49 I.88 2.84 3.85 4.76 5.42 6.71 8.24 9.73 11.41 12.13 13.37 14:36 17.83 20.76 25.32 28.62 100 1.01 1.61 2.03 3.11 4.29 5.39 6.22 7.71 9.53 11.22 13.25 13.88 13.15 16.20 19.93 22.96 28.07 31.37 200 1.08 1.72 2.17 3.38 4.74 6.08 7.07 S.81 10.97 12.91 15.34 15.76 17.11 18.18 22.15 25:22 31.00 34.18 500 1.19 1.87 2.36 3.75 5.38 7.03 8.30 10.40 13.06 15.47 18.50 fl 19.95 21.13 25.32 28.42 35.13 38.04 1000 1.27 2.00 2.51 4.07 5.94 7.85 9.40 I1.84 14.99 17.68 21.27 21.59 22.37 23.57 27.92 30.92 38.47 41.I0 • The upper band of the wrilidaree Interval at 90%cmAdena level Is the value which 5%of the eknuhted quash Mow M a given fiaquemy am greater Men. •' Thew precontion haquenry, eetlmetes se bond on a radial duration sal". ARI Is Me Averpa Racatence InWM. Plow rderto NOAA Alm 14 Decanters for mare hdarnation NOTE: Formanng prevents aeanetea nearzm to appe r as zao. " Lower bound of the 90% confidence interval Precipitation Frequency Estimates (inches) ARP*" 5 10 15 30 60 120 3 6 12 24 48 4 7 10 20 30 45 60 (yearo) min min min min min min hr hr hr hr hr da da da day day day 11 day =10.41 0.66 0.83 1.13 1.41 1.60 1.76 2.16 2.56 3.09 3.58 4.04 4.6E 5.27 7.08 8.74 10.76 12.91 �2 0.49 0.78 0.98 1.35 1.70 1.93 2.13 2.60 3. 88 3.76 4.35 4.88 5.58 6.32 8.43 10.38 12.74 15.24 =5 0.56 0.90 1.14 1.62 2.08 2.41 2.67 3.27 3.88 4.84 5.58 6.21 6.99 7.81 10.24 12.46 15.18 17. 88 10 0.63 1.01 1.28 1.86 2.42 2.86 3.19 3.90 4.66 5.74 6.61 7.27 8.12 9.02 11.70 14.10 17.16 20.16 nnnnnnnnnnnnnnnnnnnn III http://`hdsc.nws.noaa.gov/cgi-binlhdsclbuildout.perl?typ"f&units=us&series--pd&stater a... 8/19/2010