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HomeMy WebLinkAboutSW1191201_Plan (Prop. DA)_20200518XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXX GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGXUCATVUCATVWOODSGRASS FIELDWOODSCONSTRUCTION LIMITSCONSTRUCTION LIMITSCONSTRUCTION LIMITS CONSTRUCTION LIMITS CONSTRUCTION L IM ITSCONSTRUCTION LIMITSCONSTRUCTION LIMITSR/W LINEPROPERTY LINEPROPERTY LINEPROPERTY LINEPROPERTY LINEGRASSLOW GROWTHWOODS ANDVEGETATIONWOODSWOODSWOODSCLEARING LIMITCLEARING LIMITCLEARING LIMITCONSTRUCTIONLIMITSN29°59'04"W977.98'N66°39'04"W 1810.00'RDDDRDRDRDDDRDRDRDRDRDRDRDRDRDRDOHPOHPOHPOHPOHPOHPOHPOHPOHPOHPOHPOHPOHPOHP122512251210 12251225122012201220123012251213121312 3 81238 12351220122312331227122312301225 RD1209 DD122012171218122112101214121512131214 122 0 12 2 61225122212231220122112241 2 2 4 12261 2 2 6 12261 2 2 7 1 2 2 8 123012291229 13301 2 2 6 12151212 12311232122712261226 1225 1227 1227122612251224 122512261226122612261226 1225 1226 1226 1225 122 6 1 2 2 6 1 2 2 6 12261226122612261225122412231222122112201219122012201219122012191219122 1 122 2 122 3 122 4 121 9 121 8 12181219122012191 2 2 5 1 2 2 4 1 2 2 3 1 2 2 2 1 2 2 1 1 2 2 5 1 2 2 4 1 2 2 3 122 2121912151216 1 2 2 51224 122512261 2 2 612251223 1224122412211222121912181218122012191217121812191220122112221223122412251219122012211222122412251218121812231216121512141213121212111210121312121211 12141213 12 1 6 12171216 1212 1209120811991198119711961195119412101205 1202 1215120112101205119612001202119612001205120812081205120011951190 1208 1177120212011195118511801190120012051208120512081208120512001202122012181220122012191218 1 2 2 6 1 2 2 6 1 2 2 6 12 2 6122512241224 1227 1227 122712291228 1226 1226 1226 1226 1226 1226 1217 122612261 2 2 6 122612251221122 4 1223 1222 1224122312221222122312151214121312121211121012091208120712061205120512131212121112141215 1224121 8 121 9 1217 1212 1 2 2 9 122512101210 1221122212241225122512221227122612281215121512101207120312041205 1200120112021203120412051206120712051200 119512001190 119511901185 1226 1205 1210 1215 1220 122612251224122412201 2 0 5 1 2 0 0 12211220121512131224122312211225 1 2 1 01215 1224 1225 1226 1227 1228 12 2 0 121 5 121 0 120 5 12 0 0 11 9 7 122712271227 1227 122212211223 1222 122112251226122312221221122012151210120511981205121012151220122612261 2 2 6 D122612261201120111971200119712001196 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXWET PONDSTORMWATER CONTROL MEASURE(REFER TO C4.1, C6.1, C8.14)760.61'356.55'622.46'542.6'103'324.54'DoC 1-STORYBRICK BUILDINGN O R T H C A R O L I N AP R O F E S S I O N A LE N G I N E E R 0 3 3 6 1 2N O R T H C A R O L I N AP R O F E S S I O N A LE N G I N E E RN O R T H C A R O L I N AP R O F E S S I O N A LE N G I N E E RN O R T H C A R O L I N AP R O F E S S I O N A LE N G I N E E R S E A LN O R T H C A R O L I N AP R O F E S S I O N A LE N G I N E E RN O R T H C A R O L I N AP R O F E S S I O N A LE N G I N E E RN O R T H C A R O L I N AP R O F E S S I O N A LE N G I N E E RF R A N C I S S L I N S K Y, I I ISheet Number:Date:Drawn by:Project Number:2020 APR 07FSRevisionsNo.DateNC LICENSE NUMBER C-1652 Timmons Group Attn: Frank Slinsky, PE 5210 Trinity Road; Suite 102 Raleigh, NC 27607 Phone: 919.866.4505 Fax: 919.859.5663 DPS - NORTH CAROLINA NATIONAL GUARD MORGANTON REGIONAL READINESS CENTER (NC CONNECT) SCO#: 16-14394-02B Phase II: New Construction MILCON Project #: MDT714 5155 Western Avenue, Morganton, NC 286551711-B2020 FEB 1222020 APR 0730SCALE 1"=60'120'60'NAD 8 3 POST-DEVELOPMENT IMPERVIOUS AREA AND WATER QUALITY TREATMENTPROPOSED IMPERVIOUS (BYPASS)ANALYSIS POINT ADRAINAGEAREA(Acres)(CN)Q1Q10POST-DEVELOPMENTA2 (BYPASS)14.208432.8382.30POST-DEVELOPMENTA1 (BMP)POST-DEVELOPMENTA1+A2 (COMBINED)17.139223.1642.8531.3345.69123.31POST-DEVELOPMENT IMPERVIOUS TREATED IN SCMEXISTING IMPERVIOUS TO REMAIN (BYPASS)POST-DEVELOPMENT STORMWATER QUANTITY CONTROLNOTE: POST-DEVELOPMENT FLOW IS LESS THAN PRE-DEVELOPMENT FLOW AT ALL ANALYSIS POINTS.REFER TO CALCULATION BOOKLET FOR ADDITIONAL INFORMATION.Q100142.9247.56186.95ANALYSISPOINT 'A'C4.8POST-DEVELOPMENTSTORMWATERMANAGEMENT PLANA1A2DRAINAGE AREAPOST-DEVELOPMENT STORMWATER QUALITY CONTROLSEE ABOVESEE INSET 'A'INSET 'A'THIS DRAWING IS FOR AGENCY REVIEW ONLY - NOT FOR CONSTRUCTIONPRE-DEVELOPMENT ONSITE IMPERVIOUS SURFACES = 5.41 ± ACRESPOST-DEVELOPMENT ONSITE IMPERVIOUS SURFACES = 16.07 ± ACRES(INCLUDING FUTURE BUILDOUT)IMPERVIOUS AREA REQUIRED TO BE TREATED = 10.66 ± ACRESIMPERVIOUS AREA TO BE TREATED = 13.09 ± ACRES (WET DETENTION)IMPERVIOUS AREA OVERTREATED = 2.43 ± ACRESON-SITE BUILDINGSDRAINAGE AREA BASIN INFORMATIONON-SITE STREETSON-SITE PARKINGON-SITE SIDEWALKSFUTURETOTAL IMPERVIOUSTOTAL DRAINAGE AREA64,2670465,30633,3897,048570,010746,327DRAINAGE AREA ABUA TYPE(SF)(SF)(SF)(SF)(SF)(SF)(SF)64,26710,194530,61233,38961,548700,0101,498,464PROJECT AREA*THERE ARE NO WETLANDS ON-SITE.ANALYSISPOINT 'C'ANALYSISPOINT 'B'ANALYSIS POINT BANALYSIS POINT CPOST-DEVELOPMENTB1 (BYPASS)2.69741.594.999.47POST-DEVELOPMENTC1 (BYPASS)3.38741.685.2910.07B1C1