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HomeMy WebLinkAbout20150402 Ver 1_More Info Received_20150709Strickland, Bev From: Devane, Boyd Sent: Friday, July 10, 2015 11:23 AM To: Strickland, Bev Subject: FW: Sketch Plan 15 -0402 Courthouse Dr. Ext. Attachments: C2.3.1_STORMWATER.pdf Please file this in 15 -0402 From: Justin Church rmailto:iustin(abbrec.bizI Sent: Thursday, July 09, 2015 10:51 AM To: Devane, Boyd Cc: Derek Goddard Subject: Sketch Plan Would you mind looking at this sketch plan of a bmp to handle stormwater based on our conversations last week? This is sort of a hybrid plunge pool/dry detention basin. I could make it larger, but I would have to clear a substantial amount of trees to do so. This detention basin would capture all runoff from the impervious road surface that is being installed. In my opinion, this would be more effective than swales. Let me know what you think. I can get you a more polished plan quickly if you think this concept will be acceptable. Thanks /jc "Please note our change of address as of 2/1/2015. -------------------------------------- Justin Church, PE, CFM Principal Engineer BREC, P.A. 126 Executive Drive, Suite 220 Wilkesboro, NC 28697 (o) 336.844.4088 (c) 828.773.6543 http: / /brec.biz IMPACT \ /\ / / / / / / / / / / / / / I I ,�► / / / 1 \ \ \IIII I I ( /// /// �/ \ IMPACT #1\ CALCULATIONS � / / // / / / / / / // / / / / / / // // / / / / / I I / Y / / / I 1 \\ II I 40.1 11 � / // / �' 1/ DA= 070 acres / / I / / / 1 I \ I / / / 2. did,=4 8 in. I I I b, I \ i / / I �`d 4 1 // A. ''1 d max = 0.5 I / / / / //� / / j � � � � / /L = IIIIri I / �� S =0.02 I= /j,,4: I I I - 5o - Q l - 42.96 6. n artiai = 0.012 �. 7. provid d 110.02 ftV/s > Q50 r � \� ,/ / , / / � / � � �� /j� 11 l��11 /'lll 'lll lI � i111111r1.11► j A VA VA 1 INV. 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THIS PLAN MAY NOT BE RE -USED, SOLD, LOANED, OR GIVEN TO OTHERS. REPRODUCTION OR PHOTOCOPYING OF THIS PLAN WITHOUT THE WRITTEN CONSENT OF BLUE RIDGE ENVIRONMENTAL CONSULTANTS, P.A. IS PROHIBITED AND IS A VIOLATION OF FEDERAL COPYRIGHT LAWS, PUNISHABLE BY FINES UP TO $100,000 PER OFFENSE. X w I I I I 1 1 Q 1111111 I II II IIII II III; II III..I w J U- Z Q a_ w C0 Lu w J a_ 0 Q 0 Lu w Lu of W 00 C0 0 Z J 0- W J U Cn 0 0 O_ m 0 Z Q � M a W J r M U) p U z o! u O > 2 U z of W LL o H (7 Z 1�I I I Q z o I Z� W ° a z a IIII >z � WN I��III "'cl� W °Z Lu W U x it III oz Z �m III LuW °Y 111111 J z I! m 0 (I III 0 IV ~ 1111111 z IIJI 0 III► Ij10 0 cn z W X Lu 111 Lu FO w rn o w N 0 11 0 �LL,Z Z OU o Lu 0 O F m I Q w O w L u W J Z J > Lu DATE: CO 07/09/2015 PROJECT NUMBER: U 0920022014 Z DRAWN BY: Lu J.EDWARDS I Q APPROVED BY: C/1 J.CHURCH 0 –i SCALE: LL ill 0 1" = 20' (V) U) SHEET: Lu C2.3 uJ