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The Cottages at Stone Creek - 2018-10-11 Stormwater & Erosion Control Calc Book Revised 10-04-18
MOORE & SON SITE CONTRACTORS 103 MCDOWELL ROAD MILLS RIVER, NC 28759 (828)891-8900 MICHAEL LOVOY, P.E. 34 BIG BEAR TRAIL ASHEVILLE, NC 28805 (828) 545-5393 mlovoy@aceasheville.com NORTH CAROLINA FIRM NUMBER C-2849 TABLE OF CONTENTS SECTION 1 PROJECT SUMMARY OVERALL SITE INFORMATION USGS MAP SOILS INFORMATION FEMA FLOOD MAP NOAA INTENSITY DATA PRE & POST DEVELOPMENT IMPERVIOUS DATA SECTION 2 STORM DRAINAGE DESIGN STORM DRAINAGE MODEL RIP RAP APRON CALCULATIONS SECTION 3 PERMANENT DITCH DESIGN PERMANENT DITCH CALCULATIONS CHANNEL MATTING CALCULATIONS SECTION 4 EROSION CONTROL DESIGN TEMPORARY SEDIMENT BASIN & SKIMMER CALCULATIONS RIP RAP APRON CALCULATIONS SECTION 5 DRAINAGE AREA MAPS STORM & PERMANENT DITCH DRAINAGE AREA MAP EROSION CONSTROL DRAINAGE AREA MAP Project Summary Project Description The Cottages at Stone Creek is a proposed 12.08 acre single-family residential development with fifteen existing platted lots located at the end of Driftwood Lane. Driftwood Lane intersects McDowell Rd in the town of Mills River. A road has previously been rough graded within the existing road right-of-way with some storm drainage culverts installed. The site is currently primarily wooded, except for the existing overgrown soil road bed. The Cottages at Stone Creek property consists of type C soils and does not fall within a FEMA floodplain per Map #3700963200J, dated 10/02/2008. Stormwater Design Description Per NCDNER stormwater regulations, this site will not be required to provide SCM’s to control post-development stormwater runoff rates. We are proposing that stormwater runoff will be captured in grassed road side ditches, and will be directed to driveway culverts and ultimately a sub-surface storm drainage system. The proposed storm drainage system is broken up into two separate drainage areas and will discharge in separate locations to match current field conditions. Erosion Control Design Description The project will consist of approximately 6.23 acres of disturbance for the 12.08 acre site. In order to prevent off-site erosion and sedimentation, we are proposing two temporary sediment basins (TSB 1 & 2), silt fence, concentration flow outlets, inlet protection, check dams, and a construction entrance. 34 Big Bear Trail Asheville, NC 28805 Phone: 828-545-5393 NC Firm # C-2849 Imagery................................................NAIP, January 2010Roads..............................................©2006-2010 Tele AtlasNames...............................................................GNIS, 2010Hydrography.................National Hydrography Dataset, 2010Contours............................National Elevation Dataset, 2010 ―│―│ ―│―│ ―│ ―│ ―│―│ ―│―│ ―│ ―│ ―│―│―│―│ ―│―│―│―│ ―│―│―│ ―│―│―│ ―│―│―│―│ ―│―│―│―│ ―│―│―│ ―│―│―│ ―│―│―│ ―│―│ ―│―│ ―│―│ ―│―│ ―│―│ ―│―│ ―│―│ ―│―│ ―│―│ ―│―│ ―│―│ ―│―│ ―│―│ ―│―│ ―│―│ ―│―│ ―│―│ ―│―│ ―│―│ ―│―│―│ ―│―│―│ ―│―│―│ ―│―│―│ ―│―│ ―│―│ ―│―│ ―│―│ ―│―│―│―│―│―│―│―│―│―│ ―│―│―│―│ ―│―│―│ ―│―│―│ ―│―│ ―│―│ ―│―│ ―│―│ ―│―│―│ ―│―│―│ ―│―│ ―│―│ ―│―│ ―│―│ ―│―│ ―│―│ 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Regional Airport 480 479M 479M 480A 5026 479I 480A 480A §¨¦26 §¨¦26 §¨¦26 §¨¦26 £¤74 £¤74 £¤74 £¤25 £¤Bus25 £¤25 £¤25 £¤25 £¤Alt25 £¤Bus25 £¤74 £¤25 £¤Bus25 £¤74 ¬«191280 ¬«146 ¬«280 ¬«2801351 ¬«191 ¬«2803526 ¬«191280 ¬«191 ¬«2803526 ¬«280 ¬«191 ¬«146 R U N N I NG CREEK TRL GREY HAVEN DRKAY LOU LNLYDA LNJEFFRESS RD H OYT RD C O OP E RS HAWK DRSU M NER DR REGAL KNOLLS DRG E N E R A L A V I A T I ON D RFOXBERRY DRCO RD 1356 ROAN O KE RD TAP ROOT RD WELLINGTON DRDUCKER RDH EYW O OD RDWILDWOOD C I R WILKIE WAYOLD LIME KILN RDHOLBERT RDGLEN COVE RDCO RD 1337 STONELEDGE TRLBISHOP RD P I N E RIDG E TRLPARKW A Y LN GLENN BRIDGE RD S P RIN G HEAD CT KIN GFISHER LN BUTLER BRIDGE RD SCHENCK PKWY BURNSIDE D R HOOPER LNFERNCLIFF PARK DROLMSTEAD DRSTANCLIFF DR AZALEA RDCO R D 1 4 1 7 T U C K A WAY DRPINEY RIDGE D R GLENSPRINGS DR P E NSACOLA AVE CEDAR LNLAU R E L RD WOODMERE RDHOWA R D G A P R DCO RD 1541OLD AIRPORT RD SOURWOOD DRHI GH VI STA DRSPLIT ROCK TRLCO RD 1426 LANCE RDCARDINAL RDGREENHOUSE RDCO RD 13 5 4 SIERRA NEVADA WAY N E SBITT DRCP AND L DRCOLUMBINE RDG L E N V I E W RDRED FOX CIRFOUNDERS WAY LOOP RD SWEETWAT E R H ILLS DRO L D S H O A L S R DROSSCRA G GON RD BROWN RDRUGBY FOREST LNSYCAMORE DR CO RD 1536C O R D 1 5 3 3 S MILLS RIVER RD FIELDCREST RD C L A Y T O N R D W H I T E ASH DRMILES VIEW DR HI DDE N CREEK RDWOODVINE RDOVERLOOK RDS OAK FOREST DR SKYTOP FARM LN B LA K E DRLOWER LAUREL DRTUMBLEWEED TR L MILLS GAP RD NAP L ES RD G REENE RDCHRIST SCHOOL RDDEEP CREEK TRLMILL KNOB DRPOPLAR DRCO RD 1336CO RD 1345VISTA FALLS R D MI L L R I D G E D R C RAB APPLE L N CO RD 1332CREASMAN HILL R D OLD FANNING BRIDGE RD GLENN B R I D G E R D S E BUTLER FARM RDLARK HIL L BI RCHBARK DRSPRINGSIDE RD BEALE RDCO RD 1467 AVALON DR POND ST GERBER RD WATSON RD SAINT JOHN RDT R E E T OPS LNOAK TERLOCUST CTVISTA VI EW D R PINNERS COVE RDBALD WIN R D TWIN SPR IN GS RD CO RD 1670 PINEHURST CIR SAW MIL L RDRED OAK DRBONHAM RDAV O N D A L E CIR CO RD 1328LAURELWOOD LNFIDDLER S LNCOUN T R Y CLUB RD CO RD 1496 BRINSON LN BANNER FARM RDMARLOWE DRBRAN RICK LN TOWN CENTER DRPINNER RDHOL L ABROOK PKWYBENT O A K LN GLENN BRIDGE RDNEW ROCK W O O D R D CO R D 1 4 7 5 LUMBER R I V E R R D T AP ROOT LNWHISPERWOOD DRW A L D E N D RAPPIAN WAY O L D B R I C K YARD RDSOUTHCHASE DRWOODHILL DR C OMMUNI T Y RDCO RD 1362N OAK TERHIGH H I L LS RDHUMPHREY DRTURNBERRY DR C O R D 1 3 4 5 CEDAR DRWALNUT DRDEER GRASS CTHIGH RIDGE DRFOXHALL RDLEDBETTER RDBROAD P O I NTE DRROCKWOOD RDPHEASANT DRBEVLYN D R CO RD 1358W E S T VIEW DR U P P E R L A U R E L D RBIRCH LNROCKWELL DRCO RD 1418O L D AIRPORT RDGLEN COVE DRJONES R D CO RD 1349 CO RD 2019CO RD 1350C LO V E R NOOK DR CLEMENT DRANGELINE DRL A NCE RDRESEARCH DRCARRIE LNM C K E N N A R D BRADLEY BR A N C H R D RUTLEDGE RDN RUGBY RDR O Y A L P IN E S D R THE CARRIAGE RDBREEZEWAY DRTAMPA BLVDWESTFIELD RDBLUE R I DGE PARKWAY BR E V A R D R D SWEETEN CREEK RDSWEETEN CREEK RDHENDERSONVILLE RDH E N D E R S ONVI LLE RDHENDERSONVI LLE RDPISGAH NATIONAL FOREST PISGAH NATIONAL FOREST BLUE RIDGE PARKWAY BLUE RIDGE PARKWAY H E N D E R S O N C OBUNCOMBE CO B U N C O M BE C O BU N COM BE COHENDERSON C O H E N D E R S O N C O Mc Do w ell Cr S p ain B r Boylston CrDucker CrWolf Br McDowell Cr Dingle Cr Sitton CrMcCall BrC r e a s m a n B r McDowell CrA v e r y C r Bent C r Foster Cr Orton B rLine CrA v e r y Cr Sitton CrW olf B r Soapstone Br Sweetwater Br Ashley BrHi g g i n s Br Pinner CrN F o rk M ills R iv e r Newman BrBent CrKimsey CrClayton CrBrandy BrWeston B r M ills R iv erM ills R iv e rFrench Broad River Mud Creek French Broad River Fr e n c h B r o a d River French Broad River Cane Creek South Fork M ills R iv erM ill s R i v e r French B ro a d R iv e r RobertsLake DuboseLake HollamanLake LakeJulian InnisfreeLake LakeComa LakePowhatanLakePowhatan FradyLake MorganLake HunterCem GrahamCem Shepherd Memorial Park Sitton- Gillespie Cem Whitaker Cem MillsRiver Cem LongShoalsCem BakerCem Jones Cem FLETCHER MILLSRIVER MountainHome Oak Park Skyland OakForest Oak HillCourt Brickton Busbee Midway Mountain View Naples WestHaven Arden Reed CovePoplar CoveWhitaker CoveM u l l i n a x C o v e Grassy Knob Tunnel ForgeMtn CrescentHill Busbee Mtn West Knob BrownMtn Grassy Knob BrysonMtn GlennBald Ball Mtn FradyMtn LanceMtn ChestnutTop BrittonMtn BlakeMtn MillsKnob DoubleKnob DuckerMtn GrassyKnob HogbackKnob CaneyMtn MidRidge Shut-inRidge SoapstoneGap AllenGap TerryGap ReynoldsGap Ball Gap Butler Bridge Fanning Bridge Kings Bridge Long Shoals Bridge Glenn Bridge Mills River Bridge SandyBottom BuckShoals LongShoals N 30" 000 54 56 3 3 39 39 FEET 29 17 21 3 3 54 3 3 59 61 82° 16 24 27' 39 22' 30" 30' N 25' 27' 16 39 19 39 39 39 3 55 35'32' 3 000 E 30' 35° 39 39 30" FEET 000m 82° 2539 28 53 3 3 60 61 950 362 39 19 39 23 39 35°30' 30" 620 39 000 24 30" 39 37' 30" 53 E 3 3 3 32'30" 000m 26 000m 18 39 39 39 27 3 55 58 59 3 30' 17 25' 39 27 35° 22' 39 39 22 23 000m 3 356 35'57 30" 3 63 63 82° 39 20 22 39 FEET 35° 39 82° 2039 26 37' 920 57 358 FEET 62 3 18 39 21 650 29 000 NORTHCAROLINA QUADRANGLE LOCATION SKYLAND QUADRANGLENORTH CAROLINA7.5-MINUTE SERIES SKYLAND, NC 2016 Expressway Local Connector ROAD CLASSIFICATION Ramp 4WD Secondary Hwy Local Road Interstate Route State RouteUS RouteWX./H SKYLAND, NC 2016 ROAD CLASSIFICATION Check with local Forest Service unitfor current travel conditions and restrictions. FS Primary Route FS High Clearance RouteFS PassengerRouteª«▬Interstate Route State RouteUS RouteWX./H Expressway Local Connector Ramp 4WD Secondary Hwy Local Road U.S. DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY 1 Enka 8 Hendersonville 2 Asheville3 Oteen4 Dunsmore Mountain5 Fruitland6 Pisgah Forest7 Horse Shoe ADJOINING QUADRANGLES 1 2 3 4 5 6 7 8 This map was produced to conform with the National Geospatial Program US Topo Product Standard, 2011.A metadata file associated with this product is draft version 0.6.19 CONTOUR INTERVAL 20 FEETNORTH AMERICAN VERTICAL DATUM OF 1988 SCALE 1:24 000 1000 500 0 METERS 1000 2000 21KILOMETERS00.51 1 0.5 0 MILES 1 1000 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 FEET Imagery<IMG_LEADER><IMG_CITATION>Roads<TRANS_LEADER> U.S. Census Bureau, 2015 - 2016Names<GNIS_LEADER>GNIS, 2016Hydrography<HYDRO_LEADER>National Hydrography Dataset, <HYDRO_DATE>Contours<HYPSO_LEADER><HYPSO_CITATION>Boundaries............Multiple sources; see metadata file 1972 - 2016<OPTIONAL_CITATIONS>Wetlands.........FWS National Wetlands Inventory 1977 - 2014 North American Datum of 1983 (NAD83)World Geodetic System of 1984 (WGS84). Projection and1 000-meter grid: Universal Transverse Mercator, Zone 17S Produced by the United States Geological Survey 10 000-foot ticks: North Carolina Coordinate System of 1983 This map is not a legal document. Boundaries may begeneralized for this map scale. Private lands within governmentreservations may not be shown. Obtain permission beforeentering private lands. North American Datum of 1983 (NAD83)World Geodetic System of 1984 (WGS84). Projection and1 000-meter grid: Universal Transverse Mercator, Zone 17S Produced by the United States Geological Survey 10 000-foot ticks: North Carolina Coordinate System of 1983 This map is not a legal document. Boundaries may begeneralized for this map scale. Private lands within governmentreservations may not be shown. Obtain permission beforeentering private lands. Imagery.............................................NAIP, October 2014Roads................................ U.S. Census Bureau, 2015 - 2016Roads within US Forest Service Lands.............FSTopo Data with limited Forest Service updates, 2012 - 2016Names...............................................................GNIS, 2016Hydrography....................National Hydrography Dataset, 2014Contours............................National Elevation Dataset, 2008Boundaries............Multiple sources; see metadata file 1972 - 2016 Wetlands.........FWS National Wetlands Inventory 1977 - 2014 U.S. National Grid 100,000-m Square ID Grid Zone Designation LV 17S ^ ØMN GN UTM GRID AND 2016 MAGNETIC NORTHDECLINATION AT CENTER OF SHEET 0° 54´16 MILS 6° 31´116 MILS *7643016379224*NSN.7643016379224NGA REF NO.USGSX24K41640 Soil Map—Henderson County, North Carolina Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 5/11/2018 Page 1 of 3392079039208303920870392091039209503920990392103039210703920790392083039208703920910392095039209903921030356070356110356150356190356230356270356310356350356390356430356470356510 356070 356110 356150 356190 356230 356270 356310 356350 356390 356430 356470 356510 35° 25' 21'' N 82° 35' 7'' W35° 25' 21'' N82° 34' 49'' W35° 25' 12'' N 82° 35' 7'' W35° 25' 12'' N 82° 34' 49'' WN Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 17N WGS84 0 100 200 400 600 Feet 0 30 60 120 180 Meters Map Scale: 1:2,080 if printed on A landscape (11" x 8.5") sheet. Soil Map may not be valid at this scale. PRE- DEVELOPMENT Pervious Area Pervious Area Pervious Area 526205.8 SF Pervious Area 12.08 ac Total Area 526205.8 SF Total Area 12.08 ac Impervious Areas Impervious Areas Gravel Drive 3776 Gravel Drive 0.09 ac Asphault Drive 404.2 Structures 0.01 ac Total 4180.2 SF Total 0.10 ac Total % impervious 1% Total % impervious 1% POST- DEVELOPMENT Pervious Area Pervious Area Pervious Area 526205.8 SF Pervious Area 12.08 ac Total Area 526205.8 SF Total Area 12.08 ac Impervious Areas Impervious Areas Road 26108.52 Road 0.60 ac Buildings 38850 Buildings 0.89 ac Driveways 11519.09 Driveways 0.26 ac Existing Asphault Drive 404.2 Existing Asphault Drive 0.01 Total 76881.81 SF Total 1.76 ac Total % impervious 15% Total % impervious 15% Channel Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc. Friday, Aug 24 2018 PD1 Triangular Side Slopes (z:1) = 3.00, 2.00 Total Depth (ft) = 2.00 Invert Elev (ft) = 2166.64 Slope (%) = 2.00 N-Value = 0.027 Calculations Compute by: Known Q Known Q (cfs) = 3.39 Highlighted Depth (ft) = 0.63 Q (cfs) = 3.390 Area (sqft) = 0.99 Velocity (ft/s) = 3.42 Wetted Perim (ft) = 3.40 Crit Depth, Yc (ft) = 0.65 Top Width (ft) = 3.15 EGL (ft) = 0.81 0 1 2 3 4 5 6 7 8 9 10 11 12 Elev (ft)Depth (ft)Section 2166.00 -0.64 2166.50 -0.14 2167.00 0.36 2167.50 0.86 2168.00 1.36 2168.50 1.86 2169.00 2.36 Reach (ft) 8/24/2018 ECMDS 6.0 https://ecmds.com/project/137453/channel-analysis/148838/show 1/1 North American Green 5401 St. Wendel-Cynthiana Rd. Poseyville, Indiana 47633 Tel. 800.772.2040 >Fax 812.867.0247 www.nagreen.com ECMDS v6.0 CHANNEL ANALYSIS > > > PD1 Name PD1 Discharge 3.39 Peak Flow Period 24 Channel Slope 0.02 Channel Bottom Width 0 Left Side Slope 3 Right Side Slope 2 Low Flow Liner Retardence Class C 6-12 in Vegetation Type Mix (Sod and Bunch) Vegetation Density Good 75-95% Soil Type Sandy Loam SC250 - Class C - Mix (Sod & Bunch) - Good 75-95% Phase Reach Discharge Velocity Normal Depth Mannings N Permissable Shear Stress Calculated Shear Stress Safety Factor Remarks Staple Pattern SC250 Unvegetated Straight 3.39 cfs 3.42 ft/s 0.63 ft 0.027 2.5 lbs/ft2 0.79 lbs/ft2 3.18 STABLE E SC250 Reinforced Vegetation Straight 3.39 cfs 3.42 ft/s 0.63 ft 0.027 8 lbs/ft2 0.79 lbs/ft2 10.18 STABLE E Underlying Substrate Straight 3.39 cfs 3.42 ft/s 0.63 ft --0.8 lbs/ft2 0.38 lbs/ft2 2.11 STABLE -- Channel Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc. Thursday, Oct 4 2018 PD2 Trapezoidal Bottom Width (ft) = 1.00 Side Slopes (z:1) = 3.00, 3.00 Total Depth (ft) = 2.00 Invert Elev (ft) = 2160.00 Slope (%) = 2.00 N-Value = 0.027 Calculations Compute by: Known Q Known Q (cfs) = 4.21 Highlighted Depth (ft) = 0.50 Q (cfs) = 4.210 Area (sqft) = 1.25 Velocity (ft/s) = 3.37 Wetted Perim (ft) = 4.16 Crit Depth, Yc (ft) = 0.52 Top Width (ft) = 4.00 EGL (ft) = 0.68 0 2 4 6 8 10 12 14 16 18 Elev (ft)Depth (ft)Section 2159.50 -0.50 2160.00 0.00 2160.50 0.50 2161.00 1.00 2161.50 1.50 2162.00 2.00 2162.50 2.50 2163.00 3.00 Reach (ft) 10/4/2018 ECMDS 6.0 https://ecmds.com/project/137453/channel-analysis/148841/show 1/1 North American Green 5401 St. Wendel-Cynthiana Rd. Poseyville, Indiana 47633 Tel. 800.772.2040 >Fax 812.867.0247 www.nagreen.com ECMDS v6.0 CHANNEL ANALYSIS > > > PD2 Name PD2 Discharge 4.21 Peak Flow Period 24 Channel Slope 0.02 Channel Bottom Width 1 Left Side Slope 3 Right Side Slope 3 Low Flow Liner Retardence Class C 6-12 in Vegetation Type Mix (Sod and Bunch) Vegetation Density Good 75-95% Soil Type Sandy Loam SC250 - Class C - Mix (Sod & Bunch) - Good 75-95% Phase Reach Discharge Velocity Normal Depth Mannings N Permissable Shear Stress Calculated Shear Stress Safety Factor Remarks Staple Pattern SC250 Unvegetated Straight 4.21 cfs 3.46 ft/s 0.49 ft 0.027 2.5 lbs/ft2 0.61 lbs/ft2 4.07 STABLE E SC250 Reinforced Vegetation Straight 4.21 cfs 3.46 ft/s 0.49 ft 0.027 8 lbs/ft2 0.61 lbs/ft2 13.03 STABLE E Underlying Substrate Straight 4.21 cfs 3.46 ft/s 0.49 ft --0.8 lbs/ft2 0.34 lbs/ft2 2.38 STABLE -- Channel Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc. Thursday, Oct 4 2018 PD3 Trapezoidal Bottom Width (ft) = 1.00 Side Slopes (z:1) = 3.00, 3.00 Total Depth (ft) = 2.00 Invert Elev (ft) = 2170.54 Slope (%) = 6.30 N-Value = 0.027 Calculations Compute by: Known Q Known Q (cfs) = 0.41 Highlighted Depth (ft) = 0.12 Q (cfs) = 0.410 Area (sqft) = 0.16 Velocity (ft/s) = 2.51 Wetted Perim (ft) = 1.76 Crit Depth, Yc (ft) = 0.15 Top Width (ft) = 1.72 EGL (ft) = 0.22 0 2 4 6 8 10 12 14 16 18 Elev (ft)Depth (ft)Section 2170.00 -0.54 2170.50 -0.04 2171.00 0.46 2171.50 0.96 2172.00 1.46 2172.50 1.96 2173.00 2.46 Reach (ft) 10/4/2018 ECMDS 6.0 https://ecmds.com/project/137453/channel-analysis/148843/show 1/1 North American Green 5401 St. Wendel-Cynthiana Rd. Poseyville, Indiana 47633 Tel. 800.772.2040 >Fax 812.867.0247 www.nagreen.com ECMDS v6.0 CHANNEL ANALYSIS > > > PD3 Name PD3 Discharge 0.41 Peak Flow Period 24 Channel Slope 0.063 Channel Bottom Width 1 Left Side Slope 3 Right Side Slope 3 Low Flow Liner Retardence Class C 6-12 in Vegetation Type Mix (Sod and Bunch) Vegetation Density Good 75-95% Soil Type Sandy Loam SC250 - Class C - Mix (Sod & Bunch) - Good 75-95% Phase Reach Discharge Velocity Normal Depth Mannings N Permissable Shear Stress Calculated Shear Stress Safety Factor Remarks Staple Pattern SC250 Unvegetated Straight 0.41 cfs 2.73 ft/s 0.11 ft 0.027 2.5 lbs/ft2 0.44 lbs/ft2 5.66 STABLE E SC250 Reinforced Vegetation Straight 0.41 cfs 2.73 ft/s 0.11 ft 0.027 8 lbs/ft2 0.44 lbs/ft2 18.11 STABLE E Underlying Substrate Straight 0.41 cfs 2.73 ft/s 0.11 ft --0.8 lbs/ft2 0.24 lbs/ft2 3.3 STABLE -- Channel Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc. Friday, Aug 24 2018 PD4 Triangular Side Slopes (z:1) = 3.00, 2.00 Total Depth (ft) = 2.00 Invert Elev (ft) = 2170.54 Slope (%) = 6.15 N-Value = 0.027 Calculations Compute by: Known Q Known Q (cfs) = 1.89 Highlighted Depth (ft) = 0.41 Q (cfs) = 1.890 Area (sqft) = 0.42 Velocity (ft/s) = 4.50 Wetted Perim (ft) = 2.21 Crit Depth, Yc (ft) = 0.52 Top Width (ft) = 2.05 EGL (ft) = 0.72 0 1 2 3 4 5 6 7 8 9 10 11 12 Elev (ft)Depth (ft)Section 2170.00 -0.54 2170.50 -0.04 2171.00 0.46 2171.50 0.96 2172.00 1.46 2172.50 1.96 2173.00 2.46 Reach (ft) 10/4/2018 ECMDS 6.0 https://ecmds.com/project/137453/channel-analysis/148844/show 1/1 North American Green 5401 St. Wendel-Cynthiana Rd. Poseyville, Indiana 47633 Tel. 800.772.2040 >Fax 812.867.0247 www.nagreen.com ECMDS v6.0 CHANNEL ANALYSIS > > > PD4 Name PD4 Discharge 1.89 Peak Flow Period 24 Channel Slope 0.0615 Channel Bottom Width 0 Left Side Slope 3 Right Side Slope 2 Low Flow Liner Retardence Class C 6-12 in Vegetation Type Mix (Sod and Bunch) Vegetation Density Good 75-95% Soil Type Sandy Loam C350 - Class C - Mix (Sod & Bunch) - Good 75-95% Phase Reach Discharge Velocity Normal Depth Mannings N Permissable Shear Stress Calculated Shear Stress Safety Factor Remarks Staple Pattern C350 Unvegetated Straight 1.89 cfs 4.51 ft/s 0.41 ft 0.027 3 lbs/ft2 1.57 lbs/ft2 1.91 STABLE E C350 Reinforced Vegetation Straight 1.89 cfs 4.51 ft/s 0.41 ft 0.027 10 lbs/ft2 1.57 lbs/ft2 6.36 STABLE E Underlying Substrate Straight 1.89 cfs 4.51 ft/s 0.41 ft --1.2 lbs/ft2 0.91 lbs/ft2 1.32 STABLE -- Channel Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc. Thursday, Oct 4 2018 PD5 Trapezoidal Bottom Width (ft) = 1.00 Side Slopes (z:1) = 3.00, 3.00 Total Depth (ft) = 2.00 Invert Elev (ft) = 2178.00 Slope (%) = 8.00 N-Value = 0.027 Calculations Compute by: Known Q Known Q (cfs) = 1.64 Highlighted Depth (ft) = 0.23 Q (cfs) = 1.640 Area (sqft) = 0.39 Velocity (ft/s) = 4.22 Wetted Perim (ft) = 2.45 Crit Depth, Yc (ft) = 0.32 Top Width (ft) = 2.38 EGL (ft) = 0.51 0 2 4 6 8 10 12 14 16 18 Elev (ft)Depth (ft)Section 2177.50 -0.50 2178.00 0.00 2178.50 0.50 2179.00 1.00 2179.50 1.50 2180.00 2.00 2180.50 2.50 2181.00 3.00 Reach (ft) 10/4/2018 ECMDS 6.0 https://ecmds.com/project/137453/channel-analysis/148845/show 1/1 North American Green 5401 St. Wendel-Cynthiana Rd. Poseyville, Indiana 47633 Tel. 800.772.2040 >Fax 812.867.0247 www.nagreen.com ECMDS v6.0 CHANNEL ANALYSIS > > > PD5 Name PD5 Discharge 1.64 Peak Flow Period 24 Channel Slope 0.08 Channel Bottom Width 1 Left Side Slope 3 Right Side Slope 3 Low Flow Liner Retardence Class C 6-12 in Vegetation Type Mix (Sod and Bunch) Vegetation Density Good 75-95% Soil Type Sandy Loam C350 - Class C - Mix (Sod & Bunch) - Good 75-95% Phase Reach Discharge Velocity Normal Depth Mannings N Permissable Shear Stress Calculated Shear Stress Safety Factor Remarks Staple Pattern C350 Unvegetated Straight 1.64 cfs 4.46 ft/s 0.22 ft 0.027 3 lbs/ft2 1.1 lbs/ft2 2.72 STABLE E C350 Reinforced Vegetation Straight 1.64 cfs 4.46 ft/s 0.22 ft 0.027 10 lbs/ft2 1.1 lbs/ft2 9.06 STABLE E Underlying Substrate Straight 1.64 cfs 4.46 ft/s 0.22 ft --1.2 lbs/ft2 0.64 lbs/ft2 1.89 STABLE -- Channel Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc. Thursday, Oct 4 2018 PD6 Trapezoidal Bottom Width (ft) = 1.00 Side Slopes (z:1) = 3.00, 3.00 Total Depth (ft) = 2.00 Invert Elev (ft) = 2184.14 Slope (%) = 7.50 N-Value = 0.027 Calculations Compute by: Known Q Known Q (cfs) = 0.18 Highlighted Depth (ft) = 0.07 Q (cfs) = 0.180 Area (sqft) = 0.08 Velocity (ft/s) = 2.13 Wetted Perim (ft) = 1.44 Crit Depth, Yc (ft) = 0.10 Top Width (ft) = 1.42 EGL (ft) = 0.14 0 2 4 6 8 10 12 14 16 18 Elev (ft)Depth (ft)Section 2183.50 -0.64 2184.00 -0.14 2184.50 0.36 2185.00 0.86 2185.50 1.36 2186.00 1.86 2186.50 2.36 2187.00 2.86 Reach (ft) 10/4/2018 ECMDS 6.0 https://ecmds.com/project/137453/channel-analysis/148846/show 1/1 North American Green 5401 St. Wendel-Cynthiana Rd. Poseyville, Indiana 47633 Tel. 800.772.2040 >Fax 812.867.0247 www.nagreen.com ECMDS v6.0 CHANNEL ANALYSIS > > > PD6 Name PD6 Discharge 0.18 Peak Flow Period 24 Channel Slope 0.075 Channel Bottom Width 1 Left Side Slope 3 Right Side Slope 3 Low Flow Liner Retardence Class C 6-12 in Vegetation Type Mix (Sod and Bunch) Vegetation Density Good 75-95% Soil Type Sandy Loam SC250 - Class C - Mix (Sod & Bunch) - Good 75-95% Phase Reach Discharge Velocity Normal Depth Mannings N Permissable Shear Stress Calculated Shear Stress Safety Factor Remarks Staple Pattern SC250 Unvegetated Straight 0.18 cfs 2.23 ft/s 0.07 ft 0.027 2.5 lbs/ft2 0.31 lbs/ft2 7.94 STABLE E SC250 Reinforced Vegetation Straight 0.18 cfs 2.23 ft/s 0.07 ft 0.027 8 lbs/ft2 0.31 lbs/ft2 25.4 STABLE E Underlying Substrate Straight 0.18 cfs 2.23 ft/s 0.07 ft --0.8 lbs/ft2 0.17 lbs/ft2 4.63 STABLE -- Channel Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc. Thursday, Oct 4 2018 PD7 Trapezoidal Bottom Width (ft) = 1.00 Side Slopes (z:1) = 3.00, 3.00 Total Depth (ft) = 2.00 Invert Elev (ft) = 2192.95 Slope (%) = 8.00 N-Value = 0.027 Calculations Compute by: Known Q Known Q (cfs) = 0.84 Highlighted Depth (ft) = 0.16 Q (cfs) = 0.840 Area (sqft) = 0.24 Velocity (ft/s) = 3.55 Wetted Perim (ft) = 2.01 Crit Depth, Yc (ft) = 0.23 Top Width (ft) = 1.96 EGL (ft) = 0.36 0 2 4 6 8 10 12 14 16 18 Elev (ft)Depth (ft)Section 2192.00 -0.95 2192.50 -0.45 2193.00 0.05 2193.50 0.55 2194.00 1.05 2194.50 1.55 2195.00 2.05 Reach (ft) 10/4/2018 ECMDS 6.0 https://ecmds.com/project/137453/channel-analysis/148847/show 1/1 North American Green 5401 St. Wendel-Cynthiana Rd. Poseyville, Indiana 47633 Tel. 800.772.2040 >Fax 812.867.0247 www.nagreen.com ECMDS v6.0 CHANNEL ANALYSIS > > > PD7 Name PD7 Discharge 0.84 Peak Flow Period 24 Channel Slope 0.08 Channel Bottom Width 1 Left Side Slope 3 Right Side Slope 3 Low Flow Liner Retardence Class C 6-12 in Vegetation Type Mix (Sod and Bunch) Vegetation Density Good 75-95% Soil Type Sandy Loam SC250 - Class C - Mix (Sod & Bunch) - Good 75-95% Phase Reach Discharge Velocity Normal Depth Mannings N Permissable Shear Stress Calculated Shear Stress Safety Factor Remarks Staple Pattern SC250 Unvegetated Straight 0.84 cfs 3.68 ft/s 0.16 ft 0.027 2.5 lbs/ft2 0.78 lbs/ft2 3.22 STABLE E SC250 Reinforced Vegetation Straight 0.84 cfs 3.68 ft/s 0.16 ft 0.027 8 lbs/ft2 0.78 lbs/ft2 10.3 STABLE E Underlying Substrate Straight 0.84 cfs 3.68 ft/s 0.16 ft --0.8 lbs/ft2 0.43 lbs/ft2 1.88 STABLE -- Channel Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc. Thursday, Oct 4 2018 PD8 Trapezoidal Bottom Width (ft) = 1.00 Side Slopes (z:1) = 3.00, 3.00 Total Depth (ft) = 2.00 Invert Elev (ft) = 2196.02 Slope (%) = 6.20 N-Value = 0.027 Calculations Compute by: Known Q Known Q (cfs) = 2.46 Highlighted Depth (ft) = 0.29 Q (cfs) = 2.460 Area (sqft) = 0.54 Velocity (ft/s) = 4.54 Wetted Perim (ft) = 2.83 Crit Depth, Yc (ft) = 0.40 Top Width (ft) = 2.74 EGL (ft) = 0.61 0 2 4 6 8 10 12 14 16 18 Elev (ft)Depth (ft)Section 2195.50 -0.52 2196.00 -0.02 2196.50 0.48 2197.00 0.98 2197.50 1.48 2198.00 1.98 2198.50 2.48 2199.00 2.98 Reach (ft) 10/4/2018 ECMDS 6.0 https://ecmds.com/project/137453/channel-analysis/148848/show 1/1 North American Green 5401 St. Wendel-Cynthiana Rd. Poseyville, Indiana 47633 Tel. 800.772.2040 >Fax 812.867.0247 www.nagreen.com ECMDS v6.0 CHANNEL ANALYSIS > > > PD8 Name PD8 Discharge 2.46 Peak Flow Period 24 Channel Slope 0.062 Channel Bottom Width 1 Left Side Slope 3 Right Side Slope 3 Low Flow Liner Retardence Class C 6-12 in Vegetation Type Mix (Sod and Bunch) Vegetation Density Good 75-95% Soil Type Sandy Loam C350 - Class C - Mix (Sod & Bunch) - Good 75-95% Phase Reach Discharge Velocity Normal Depth Mannings N Permissable Shear Stress Calculated Shear Stress Safety Factor Remarks Staple Pattern C350 Unvegetated Straight 2.46 cfs 4.55 ft/s 0.29 ft 0.027 3 lbs/ft2 1.12 lbs/ft2 2.68 STABLE E C350 Reinforced Vegetation Straight 2.46 cfs 4.55 ft/s 0.29 ft 0.027 10 lbs/ft2 1.12 lbs/ft2 8.93 STABLE E Underlying Substrate Straight 2.46 cfs 4.55 ft/s 0.29 ft --1.2 lbs/ft2 0.65 lbs/ft2 1.86 STABLE -- Channel Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc. Thursday, Oct 4 2018 PD9 Trapezoidal Bottom Width (ft) = 1.00 Side Slopes (z:1) = 3.00, 3.00 Total Depth (ft) = 2.00 Invert Elev (ft) = 2201.85 Slope (%) = 4.85 N-Value = 0.027 Calculations Compute by: Known Q Known Q (cfs) = 2.01 Highlighted Depth (ft) = 0.28 Q (cfs) = 2.010 Area (sqft) = 0.52 Velocity (ft/s) = 3.90 Wetted Perim (ft) = 2.77 Crit Depth, Yc (ft) = 0.36 Top Width (ft) = 2.68 EGL (ft) = 0.52 0 2 4 6 8 10 12 14 16 18 Elev (ft)Depth (ft)Section 2201.00 -0.85 2201.50 -0.35 2202.00 0.15 2202.50 0.65 2203.00 1.15 2203.50 1.65 2204.00 2.15 Reach (ft) 10/4/2018 ECMDS 6.0 https://ecmds.com/project/137453/channel-analysis/148849/show 1/1 North American Green 5401 St. Wendel-Cynthiana Rd. Poseyville, Indiana 47633 Tel. 800.772.2040 >Fax 812.867.0247 www.nagreen.com ECMDS v6.0 CHANNEL ANALYSIS > > > PD9 Name PD9 Discharge 2.01 Peak Flow Period 24 Channel Slope 0.0485 Channel Bottom Width 1 Left Side Slope 3 Right Side Slope 3 Low Flow Liner Retardence Class C 6-12 in Vegetation Type Mix (Sod and Bunch) Vegetation Density Good 75-95% Soil Type Sandy Loam C350 - Class C - Mix (Sod & Bunch) - Good 75-95% Phase Reach Discharge Velocity Normal Depth Mannings N Permissable Shear Stress Calculated Shear Stress Safety Factor Remarks Staple Pattern C350 Unvegetated Straight 2.01 cfs 3.94 ft/s 0.28 ft 0.027 3 lbs/ft2 0.84 lbs/ft2 3.56 STABLE E C350 Reinforced Vegetation Straight 2.01 cfs 3.94 ft/s 0.28 ft 0.027 10 lbs/ft2 0.84 lbs/ft2 11.87 STABLE E Underlying Substrate Straight 2.01 cfs 3.94 ft/s 0.28 ft --1.2 lbs/ft2 0.49 lbs/ft2 2.47 STABLE -- Channel Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc. Thursday, Oct 4 2018 PD10 Trapezoidal Bottom Width (ft) = 1.00 Side Slopes (z:1) = 3.00, 3.00 Total Depth (ft) = 2.00 Invert Elev (ft) = 2200.21 Slope (%) = 6.85 N-Value = 0.027 Calculations Compute by: Known Q Known Q (cfs) = 1.53 Highlighted Depth (ft) = 0.23 Q (cfs) = 1.530 Area (sqft) = 0.39 Velocity (ft/s) = 3.94 Wetted Perim (ft) = 2.45 Crit Depth, Yc (ft) = 0.31 Top Width (ft) = 2.38 EGL (ft) = 0.47 0 2 4 6 8 10 12 14 16 18 Elev (ft)Depth (ft)Section 2199.50 -0.71 2200.00 -0.21 2200.50 0.29 2201.00 0.79 2201.50 1.29 2202.00 1.79 2202.50 2.29 2203.00 2.79 Reach (ft) 10/4/2018 ECMDS 6.0 https://ecmds.com/project/137453/channel-analysis/148850/show 1/1 North American Green 5401 St. Wendel-Cynthiana Rd. Poseyville, Indiana 47633 Tel. 800.772.2040 >Fax 812.867.0247 www.nagreen.com ECMDS v6.0 CHANNEL ANALYSIS > > > PD10 Name PD10 Discharge 1.53 Peak Flow Period 24 Channel Slope 0.0685 Channel Bottom Width 1 Left Side Slope 3 Right Side Slope 3 Low Flow Liner Retardence Class C 6-12 in Vegetation Type Mix (Sod and Bunch) Vegetation Density Good 75-95% Soil Type Sandy Loam SC250 - Class C - Mix (Sod & Bunch) - Good 75-95% Phase Reach Discharge Velocity Normal Depth Mannings N Permissable Shear Stress Calculated Shear Stress Safety Factor Remarks Staple Pattern SC250 Unvegetated Straight 1.53 cfs 4.14 ft/s 0.22 ft 0.027 2.5 lbs/ft2 0.95 lbs/ft2 2.63 STABLE E SC250 Reinforced Vegetation Straight 1.53 cfs 4.14 ft/s 0.22 ft 0.027 8 lbs/ft2 0.95 lbs/ft2 8.43 STABLE E Underlying Substrate Straight 1.53 cfs 4.14 ft/s 0.22 ft --0.8 lbs/ft2 0.52 lbs/ft2 1.54 STABLE -- Channel Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc. Thursday, Oct 4 2018 PD11 Trapezoidal Bottom Width (ft) = 1.00 Side Slopes (z:1) = 3.00, 3.00 Total Depth (ft) = 2.00 Invert Elev (ft) = 2198.97 Slope (%) = 7.73 N-Value = 0.027 Calculations Compute by: Known Q Known Q (cfs) = 0.92 Highlighted Depth (ft) = 0.17 Q (cfs) = 0.920 Area (sqft) = 0.26 Velocity (ft/s) = 3.58 Wetted Perim (ft) = 2.08 Crit Depth, Yc (ft) = 0.24 Top Width (ft) = 2.02 EGL (ft) = 0.37 0 2 4 6 8 10 12 14 16 18 Elev (ft)Depth (ft)Section 2198.00 -0.97 2198.50 -0.47 2199.00 0.03 2199.50 0.53 2200.00 1.03 2200.50 1.53 2201.00 2.03 Reach (ft) 10/4/2018 ECMDS 6.0 https://ecmds.com/project/137453/channel-analysis/148851/show 1/1 North American Green 5401 St. Wendel-Cynthiana Rd. Poseyville, Indiana 47633 Tel. 800.772.2040 >Fax 812.867.0247 www.nagreen.com ECMDS v6.0 CHANNEL ANALYSIS > > > PD11 Name PD11 Discharge 0.92 Peak Flow Period 24 Channel Slope 0.0773 Channel Bottom Width 1 Left Side Slope 3 Right Side Slope 3 Low Flow Liner Retardence Class C 6-12 in Vegetation Type Mix (Sod and Bunch) Vegetation Density Good 75-95% Soil Type Sandy Loam SC250 - Class C - Mix (Sod & Bunch) - Good 75-95% Phase Reach Discharge Velocity Normal Depth Mannings N Permissable Shear Stress Calculated Shear Stress Safety Factor Remarks Staple Pattern SC250 Unvegetated Straight 0.92 cfs 3.74 ft/s 0.16 ft 0.027 2.5 lbs/ft2 0.8 lbs/ft2 3.14 STABLE E SC250 Reinforced Vegetation Straight 0.92 cfs 3.74 ft/s 0.16 ft 0.027 8 lbs/ft2 0.8 lbs/ft2 10.06 STABLE E Underlying Substrate Straight 0.92 cfs 3.74 ft/s 0.16 ft --0.8 lbs/ft2 0.44 lbs/ft2 1.83 STABLE -- Channel Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc. Thursday, Oct 4 2018 PD12 Trapezoidal Bottom Width (ft) = 1.00 Side Slopes (z:1) = 3.00, 3.00 Total Depth (ft) = 2.00 Invert Elev (ft) = 2190.00 Slope (%) = 7.00 N-Value = 0.027 Calculations Compute by: Known Q Known Q (cfs) = 2.94 Highlighted Depth (ft) = 0.31 Q (cfs) = 2.940 Area (sqft) = 0.60 Velocity (ft/s) = 4.91 Wetted Perim (ft) = 2.96 Crit Depth, Yc (ft) = 0.44 Top Width (ft) = 2.86 EGL (ft) = 0.69 0 2 4 6 8 10 12 14 16 18 Elev (ft)Depth (ft)Section 2189.50 -0.50 2190.00 0.00 2190.50 0.50 2191.00 1.00 2191.50 1.50 2192.00 2.00 2192.50 2.50 2193.00 3.00 Reach (ft) 10/4/2018 ECMDS 6.0 https://ecmds.com/project/137453/channel-analysis/148852/show 1/1 North American Green 5401 St. Wendel-Cynthiana Rd. Poseyville, Indiana 47633 Tel. 800.772.2040 >Fax 812.867.0247 www.nagreen.com ECMDS v6.0 CHANNEL ANALYSIS > > > PD12 Name PD12 Discharge 2.94 Peak Flow Period 24 Channel Slope 0.07 Channel Bottom Width 1 Left Side Slope 3 Right Side Slope 3 Low Flow Liner Retardence Class C 6-12 in Vegetation Type Mix (Sod and Bunch) Vegetation Density Good 75-95% Soil Type Sandy Loam C350 - Class C - Mix (Sod & Bunch) - Good 75-95% Phase Reach Discharge Velocity Normal Depth Mannings N Permissable Shear Stress Calculated Shear Stress Safety Factor Remarks Staple Pattern C350 Unvegetated Straight 2.94 cfs 4.99 ft/s 0.31 ft 0.027 3 lbs/ft2 1.34 lbs/ft2 2.24 STABLE E C350 Reinforced Vegetation Straight 2.94 cfs 4.99 ft/s 0.31 ft 0.027 10 lbs/ft2 1.34 lbs/ft2 7.46 STABLE E Underlying Substrate Straight 2.94 cfs 4.99 ft/s 0.31 ft --1.2 lbs/ft2 0.77 lbs/ft2 1.55 STABLE -- Channel Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc. Thursday, Oct 4 2018 PD13 Trapezoidal Bottom Width (ft) = 1.00 Side Slopes (z:1) = 3.00, 3.00 Total Depth (ft) = 2.00 Invert Elev (ft) = 2175.58 Slope (%) = 2.30 N-Value = 0.027 Calculations Compute by: Known Q Known Q (cfs) = 4.90 Highlighted Depth (ft) = 0.52 Q (cfs) = 4.900 Area (sqft) = 1.33 Velocity (ft/s) = 3.68 Wetted Perim (ft) = 4.29 Crit Depth, Yc (ft) = 0.56 Top Width (ft) = 4.12 EGL (ft) = 0.73 0 2 4 6 8 10 12 14 16 18 Elev (ft)Depth (ft)Section 2175.00 -0.58 2175.50 -0.08 2176.00 0.42 2176.50 0.92 2177.00 1.42 2177.50 1.92 2178.00 2.42 Reach (ft) 10/4/2018 ECMDS 6.0 https://ecmds.com/project/137453/channel-analysis/148853/show 1/1 North American Green 5401 St. Wendel-Cynthiana Rd. Poseyville, Indiana 47633 Tel. 800.772.2040 >Fax 812.867.0247 www.nagreen.com ECMDS v6.0 CHANNEL ANALYSIS > > > PD13 Name PD13 Discharge 4.9 Peak Flow Period 24 Channel Slope 0.023 Channel Bottom Width 1 Left Side Slope 3 Right Side Slope 3 Low Flow Liner Retardence Class C 6-12 in Vegetation Type Mix (Sod and Bunch) Vegetation Density Good 75-95% Soil Type Sandy Loam SC250 - Class C - Mix (Sod & Bunch) - Good 75-95% Phase Reach Discharge Velocity Normal Depth Mannings N Permissable Shear Stress Calculated Shear Stress Safety Factor Remarks Staple Pattern SC250 Unvegetated Straight 4.9 cfs 3.79 ft/s 0.51 ft 0.027 2.5 lbs/ft2 0.73 lbs/ft2 3.41 STABLE E SC250 Reinforced Vegetation Straight 4.9 cfs 3.79 ft/s 0.51 ft 0.027 8 lbs/ft2 0.73 lbs/ft2 10.91 STABLE E Underlying Substrate Straight 4.9 cfs 3.79 ft/s 0.51 ft --0.8 lbs/ft2 0.4 lbs/ft2 2.01 STABLE -- Channel Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc. Thursday, Oct 4 2018 PD14 Trapezoidal Bottom Width (ft) = 1.00 Side Slopes (z:1) = 3.00, 3.00 Total Depth (ft) = 2.00 Invert Elev (ft) = 2181.89 Slope (%) = 2.92 N-Value = 0.027 Calculations Compute by: Known Q Known Q (cfs) = 5.38 Highlighted Depth (ft) = 0.51 Q (cfs) = 5.380 Area (sqft) = 1.29 Velocity (ft/s) = 4.17 Wetted Perim (ft) = 4.23 Crit Depth, Yc (ft) = 0.59 Top Width (ft) = 4.06 EGL (ft) = 0.78 0 2 4 6 8 10 12 14 16 18 Elev (ft)Depth (ft)Section 2181.00 -0.89 2181.50 -0.39 2182.00 0.11 2182.50 0.61 2183.00 1.11 2183.50 1.61 2184.00 2.11 Reach (ft) 10/4/2018 ECMDS 6.0 https://ecmds.com/project/137453/channel-analysis/148854/show 1/1 North American Green 5401 St. Wendel-Cynthiana Rd. Poseyville, Indiana 47633 Tel. 800.772.2040 >Fax 812.867.0247 www.nagreen.com ECMDS v6.0 CHANNEL ANALYSIS > > > PD14 Name PD14 Discharge 5.38 Peak Flow Period 24 Channel Slope 0.0292 Channel Bottom Width 1 Left Side Slope 3 Right Side Slope 3 Low Flow Liner Retardence Class C 6-12 in Vegetation Type Mix (Sod and Bunch) Vegetation Density Good 75-95% Soil Type Sandy Loam SC250 - Class C - Mix (Sod & Bunch) - Good 75-95% Phase Reach Discharge Velocity Normal Depth Mannings N Permissable Shear Stress Calculated Shear Stress Safety Factor Remarks Staple Pattern SC250 Unvegetated Straight 5.38 cfs 4.24 ft/s 0.5 ft 0.027 2.5 lbs/ft2 0.92 lbs/ft2 2.72 STABLE E SC250 Reinforced Vegetation Straight 5.38 cfs 4.24 ft/s 0.5 ft 0.027 8 lbs/ft2 0.92 lbs/ft2 8.7 STABLE E Underlying Substrate Straight 5.38 cfs 4.24 ft/s 0.5 ft --0.8 lbs/ft2 0.5 lbs/ft2 1.59 STABLE -- Channel Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc. Friday, Aug 24 2018 PD15 Trapezoidal Bottom Width (ft) = 1.00 Side Slopes (z:1) = 3.00, 2.00 Total Depth (ft) = 2.00 Invert Elev (ft) = 2177.81 Slope (%) = 1.50 N-Value = 0.027 Calculations Compute by: Known Q Known Q (cfs) = 7.30 Highlighted Depth (ft) = 0.72 Q (cfs) = 7.300 Area (sqft) = 2.02 Velocity (ft/s) = 3.62 Wetted Perim (ft) = 4.89 Crit Depth, Yc (ft) = 0.71 Top Width (ft) = 4.60 EGL (ft) = 0.92 0 2 4 6 8 10 12 14 16 Elev (ft)Depth (ft)Section 2177.00 -0.81 2177.50 -0.31 2178.00 0.19 2178.50 0.69 2179.00 1.19 2179.50 1.69 2180.00 2.19 Reach (ft) 10/4/2018 ECMDS 6.0 https://ecmds.com/project/137453/channel-analysis/148855/show 1/1 North American Green 5401 St. Wendel-Cynthiana Rd. Poseyville, Indiana 47633 Tel. 800.772.2040 >Fax 812.867.0247 www.nagreen.com ECMDS v6.0 CHANNEL ANALYSIS > > > PD15 Name PD15 Discharge 7.3 Peak Flow Period 24 Channel Slope 0.015 Channel Bottom Width 1 Left Side Slope 3 Right Side Slope 3 Low Flow Liner Retardence Class C 6-12 in Vegetation Type Mix (Sod and Bunch) Vegetation Density Good 75-95% Soil Type Sandy Loam SC250 - Class C - Mix (Sod & Bunch) - Good 75-95% Phase Reach Discharge Velocity Normal Depth Mannings N Permissable Shear Stress Calculated Shear Stress Safety Factor Remarks Staple Pattern SC250 Unvegetated Straight 7.3 cfs 3.58 ft/s 0.67 ft 0.027 2.5 lbs/ft2 0.63 lbs/ft2 3.96 STABLE E SC250 Reinforced Vegetation Straight 7.3 cfs 3.58 ft/s 0.67 ft 0.027 8 lbs/ft2 0.63 lbs/ft2 12.67 STABLE E Underlying Substrate Straight 7.3 cfs 3.58 ft/s 0.67 ft --0.8 lbs/ft2 0.29 lbs/ft2 2.75 STABLE -- Channel Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc. Thursday, Oct 4 2018 PD16 Triangular Side Slopes (z:1) = 3.00, 3.00 Total Depth (ft) = 2.00 Invert Elev (ft) = 2161.00 Slope (%) = 5.00 N-Value = 0.027 Calculations Compute by: Known Q Known Q (cfs) = 15.38 Highlighted Depth (ft) = 0.87 Q (cfs) = 15.38 Area (sqft) = 2.27 Velocity (ft/s) = 6.77 Wetted Perim (ft) = 5.50 Crit Depth, Yc (ft) = 1.11 Top Width (ft) = 5.22 EGL (ft) = 1.58 0 2 4 6 8 10 12 14 16 Elev (ft)Depth (ft)Section 2160.50 -0.50 2161.00 0.00 2161.50 0.50 2162.00 1.00 2162.50 1.50 2163.00 2.00 2163.50 2.50 2164.00 3.00 Reach (ft) 10/4/2018 ECMDS 6.0 https://ecmds.com/project/137453/channel-analysis/148856/show 1/1 North American Green 5401 St. Wendel-Cynthiana Rd. Poseyville, Indiana 47633 Tel. 800.772.2040 >Fax 812.867.0247 www.nagreen.com ECMDS v6.0 CHANNEL ANALYSIS > > > PD16 Name PD16 Discharge 15.38 Peak Flow Period 24 Channel Slope 0.05 Channel Bottom Width 0 Left Side Slope 3 Right Side Slope 3 Low Flow Liner Retardence Class C 6-12 in Vegetation Type Mix (Sod and Bunch) Vegetation Density Good 75-95% Soil Type Sandy Loam C350 - Class C - Mix (Sod & Bunch) - Good 75-95% Phase Reach Discharge Velocity Normal Depth Mannings N Permissable Shear Stress Calculated Shear Stress Safety Factor Remarks Staple Pattern C350 Unvegetated Straight 15.38 cfs 6.81 ft/s 0.87 ft 0.027 3 lbs/ft2 2.71 lbs/ft2 1.11 STABLE E C350 Reinforced Vegetation Straight 15.38 cfs 6.81 ft/s 0.87 ft 0.027 10 lbs/ft2 2.71 lbs/ft2 3.69 STABLE E Underlying Substrate Straight 15.38 cfs 6.81 ft/s 0.87 ft --1.2 lbs/ft2 1.07 lbs/ft2 1.13 STABLE -- Channel Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc. Thursday, Oct 4 2018 PD17 Triangular Side Slopes (z:1) = 3.00, 3.00 Total Depth (ft) = 2.00 Invert Elev (ft) = 2149.50 Slope (%) = 2.00 N-Value = 0.027 Calculations Compute by: Known Q Known Q (cfs) = 18.96 Highlighted Depth (ft) = 1.12 Q (cfs) = 18.96 Area (sqft) = 3.76 Velocity (ft/s) = 5.04 Wetted Perim (ft) = 7.08 Crit Depth, Yc (ft) = 1.20 Top Width (ft) = 6.72 EGL (ft) = 1.51 0 2 4 6 8 10 12 14 16 Elev (ft)Depth (ft)Section 2149.00 -0.50 2149.50 0.00 2150.00 0.50 2150.50 1.00 2151.00 1.50 2151.50 2.00 2152.00 2.50 Reach (ft) 10/4/2018 ECMDS 6.0 https://ecmds.com/project/137453/channel-analysis/148857/show 1/1 North American Green 5401 St. Wendel-Cynthiana Rd. Poseyville, Indiana 47633 Tel. 800.772.2040 >Fax 812.867.0247 www.nagreen.com ECMDS v6.0 CHANNEL ANALYSIS > > > PD17 Name PD17 Discharge 18.96 Peak Flow Period 24 Channel Slope 0.02 Channel Bottom Width 0 Left Side Slope 3 Right Side Slope 3 Low Flow Liner Retardence Class C 6-12 in Vegetation Type Mix (Sod and Bunch) Vegetation Density Good 75-95% Soil Type Sandy Loam C350 - Class C - Mix (Sod & Bunch) - Good 75-95% Phase Reach Discharge Velocity Normal Depth Mannings N Permissable Shear Stress Calculated Shear Stress Safety Factor Remarks Staple Pattern C350 Unvegetated Straight 18.96 cfs 5.09 ft/s 1.11 ft 0.027 3 lbs/ft2 1.39 lbs/ft2 2.16 STABLE E C350 Reinforced Vegetation Straight 18.96 cfs 5.09 ft/s 1.11 ft 0.027 10 lbs/ft2 1.39 lbs/ft2 7.19 STABLE E Underlying Substrate Straight 18.96 cfs 5.09 ft/s 1.11 ft --1.2 lbs/ft2 0.4 lbs/ft2 2.97 STABLE -- Hydrology Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc. Friday, Aug 24 2018 PD18 Hydrograph type = Rational Peak discharge (cfs) = 0.460 Storm frequency (yrs) = 25 Time interval (min) = 1 Drainage area (ac) = 0.090 Runoff coeff. (C) = 0.63 Rainfall Inten (in/hr) = 8.119 Tc by User (min) = 5 IDF Curve = Stone Creek Cottages.IDF Rec limb factor = 1.00 Hydrograph Volume = 138 (cuft); 0.003 (acft) 0 5 10 Q (cfs) 0.00 0.00 0.05 0.05 0.10 0.10 0.15 0.15 0.20 0.20 0.25 0.25 0.30 0.30 0.35 0.35 0.40 0.40 0.45 0.45 0.50 0.50 Q (cfs) Time (min) Runoff Hydrograph 25-yr frequency Runoff Hyd - Qp = 0.46 (cfs) Channel Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc. Thursday, Oct 4 2018 PD18 Trapezoidal Bottom Width (ft) = 1.00 Side Slopes (z:1) = 3.00, 3.00 Total Depth (ft) = 2.00 Invert Elev (ft) = 2189.00 Slope (%) = 7.50 N-Value = 0.027 Calculations Compute by: Known Q Known Q (cfs) = 2.92 Highlighted Depth (ft) = 0.31 Q (cfs) = 2.920 Area (sqft) = 0.60 Velocity (ft/s) = 4.88 Wetted Perim (ft) = 2.96 Crit Depth, Yc (ft) = 0.43 Top Width (ft) = 2.86 EGL (ft) = 0.68 0 2 4 6 8 10 12 14 16 18 Elev (ft)Depth (ft)Section 2188.50 -0.50 2189.00 0.00 2189.50 0.50 2190.00 1.00 2190.50 1.50 2191.00 2.00 2191.50 2.50 2192.00 3.00 Reach (ft) 10/4/2018 ECMDS 6.0 https://ecmds.com/project/137453/channel-analysis/148858/show 1/1 North American Green 5401 St. Wendel-Cynthiana Rd. Poseyville, Indiana 47633 Tel. 800.772.2040 >Fax 812.867.0247 www.nagreen.com ECMDS v6.0 CHANNEL ANALYSIS > > > PD18 Name PD18 Discharge 2.92 Peak Flow Period 24 Channel Slope 0.075 Channel Bottom Width 1 Left Side Slope 3 Right Side Slope 3 Low Flow Liner Retardence Class C 6-12 in Vegetation Type Mix (Sod and Bunch) Vegetation Density Good 75-95% Soil Type Sandy Loam P550 - Class C - Mix (Sod & Bunch) - Good 75-95% Phase Reach Discharge Velocity Normal Depth Mannings N Permissable Shear Stress Calculated Shear Stress Safety Factor Remarks Staple Pattern P550 Unvegetated Straight 2.92 cfs 5.11 ft/s 0.3 ft 0.027 3.25 lbs/ft2 1.41 lbs/ft2 2.31 STABLE E P550 Reinforced Vegetation Straight 2.92 cfs 5.11 ft/s 0.3 ft 0.027 12 lbs/ft2 1.41 lbs/ft2 8.52 STABLE E Underlying Substrate Straight 2.92 cfs 5.11 ft/s 0.3 ft --3.25 lbs/ft2 0.81 lbs/ft2 4 STABLE -- Hydrology Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc. Friday, Aug 24 2018 PD19 Hydrograph type = Rational Peak discharge (cfs) = 4.993 Storm frequency (yrs) = 25 Time interval (min) = 1 Drainage area (ac) = 1.230 Runoff coeff. (C) = 0.5 Rainfall Inten (in/hr) = 8.119 Tc by User (min) = 5 IDF Curve = Stone Creek Cottages.IDF Rec limb factor = 1.00 Hydrograph Volume = 1,498 (cuft); 0.034 (acft) 0 5 10 Q (cfs) 0.00 0.00 1.00 1.00 2.00 2.00 3.00 3.00 4.00 4.00 5.00 5.00 Q (cfs) Time (min) Runoff Hydrograph 25-yr frequency Runoff Hyd - Qp = 4.99 (cfs) Channel Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc. Friday, Aug 24 2018 PD19 Triangular Side Slopes (z:1) = 3.00, 3.00 Total Depth (ft) = 1.00 Invert Elev (ft) = 2186.00 Slope (%) = 2.00 N-Value = 0.027 Calculations Compute by: Known Q Known Q (cfs) = 8.29 Highlighted Depth (ft) = 0.82 Q (cfs) = 8.290 Area (sqft) = 2.02 Velocity (ft/s) = 4.11 Wetted Perim (ft) = 5.19 Crit Depth, Yc (ft) = 0.87 Top Width (ft) = 4.92 EGL (ft) = 1.08 0 1 2 3 4 5 6 7 8 Elev (ft)Depth (ft)Section 2185.50 -0.50 2186.00 0.00 2186.50 0.50 2187.00 1.00 2187.50 1.50 2188.00 2.00 Reach (ft) 8/24/2018 ECMDS 6.0 https://ecmds.com/project/137453/channel-analysis/148859/show 1/1 North American Green 5401 St. Wendel-Cynthiana Rd. Poseyville, Indiana 47633 Tel. 800.772.2040 >Fax 812.867.0247 www.nagreen.com ECMDS v6.0 CHANNEL ANALYSIS > > > PD19 Name PD19 Discharge 8.29 Peak Flow Period 24 Channel Slope 0.02 Channel Bottom Width 0 Left Side Slope 3 Right Side Slope 3 Low Flow Liner Retardence Class C 6-12 in Vegetation Type Mix (Sod and Bunch) Vegetation Density Good 75-95% Soil Type Sandy Loam SC250 - Class C - Mix (Sod & Bunch) - Good 75-95% Phase Reach Discharge Velocity Normal Depth Mannings N Permissable Shear Stress Calculated Shear Stress Safety Factor Remarks Staple Pattern SC250 Unvegetated Straight 8.29 cfs 4.14 ft/s 0.82 ft 0.027 2.5 lbs/ft2 1.02 lbs/ft2 2.45 STABLE E SC250 Reinforced Vegetation Straight 8.29 cfs 4.14 ft/s 0.82 ft 0.027 8 lbs/ft2 1.02 lbs/ft2 7.84 STABLE E Underlying Substrate Straight 8.29 cfs 4.14 ft/s 0.82 ft --0.8 lbs/ft2 0.4 lbs/ft2 1.99 STABLE -- Hydrology Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc. Friday, Aug 24 2018 PD20 Hydrograph type = Rational Peak discharge (cfs) = 2.070 Storm frequency (yrs) = 25 Time interval (min) = 1 Drainage area (ac) = 0.510 Runoff coeff. (C) = 0.5 Rainfall Inten (in/hr) = 8.119 Tc by User (min) = 5 IDF Curve = Stone Creek Cottages.IDF Rec limb factor = 1.00 Hydrograph Volume = 621 (cuft); 0.014 (acft) 0 5 10 Q (cfs) 0.00 0.00 1.00 1.00 2.00 2.00 3.00 3.00 Q (cfs) Time (min) Runoff Hydrograph 25-yr frequency Runoff Hyd - Qp = 2.07 (cfs) Channel Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc. Friday, Aug 24 2018 PD20 Triangular Side Slopes (z:1) = 3.00, 3.00 Total Depth (ft) = 1.00 Invert Elev (ft) = 2170.00 Slope (%) = 2.00 N-Value = 0.027 Calculations Compute by: Known Q Known Q (cfs) = 3.71 Highlighted Depth (ft) = 0.61 Q (cfs) = 3.710 Area (sqft) = 1.12 Velocity (ft/s) = 3.32 Wetted Perim (ft) = 3.86 Crit Depth, Yc (ft) = 0.63 Top Width (ft) = 3.66 EGL (ft) = 0.78 0 1 2 3 4 5 6 7 8 Elev (ft)Depth (ft)Section 2169.50 -0.50 2170.00 0.00 2170.50 0.50 2171.00 1.00 2171.50 1.50 2172.00 2.00 Reach (ft) 8/24/2018 ECMDS 6.0 https://ecmds.com/project/137453/channel-analysis/148860/show 1/1 North American Green 5401 St. Wendel-Cynthiana Rd. Poseyville, Indiana 47633 Tel. 800.772.2040 >Fax 812.867.0247 www.nagreen.com ECMDS v6.0 CHANNEL ANALYSIS > > > PD20 Name PD20 Discharge 3.71 Peak Flow Period 24 Channel Slope 0.02 Channel Bottom Width 0 Left Side Slope 3 Right Side Slope 3 Low Flow Liner Retardence Class C 6-12 in Vegetation Type Mix (Sod and Bunch) Vegetation Density Good 75-95% Soil Type Sandy Loam SC250 - Class C - Mix (Sod & Bunch) - Good 75-95% Phase Reach Discharge Velocity Normal Depth Mannings N Permissable Shear Stress Calculated Shear Stress Safety Factor Remarks Staple Pattern SC250 Unvegetated Straight 3.71 cfs 3.38 ft/s 0.6 ft 0.027 2.5 lbs/ft2 0.75 lbs/ft2 3.31 STABLE E SC250 Reinforced Vegetation Straight 3.71 cfs 3.38 ft/s 0.6 ft 0.027 8 lbs/ft2 0.75 lbs/ft2 10.6 STABLE E Underlying Substrate Straight 3.71 cfs 3.38 ft/s 0.6 ft --0.8 lbs/ft2 0.37 lbs/ft2 2.14 STABLE -- Hydrology Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc. Friday, Aug 24 2018 PD21 Hydrograph type = Rational Peak discharge (cfs) = 0.447 Storm frequency (yrs) = 25 Time interval (min) = 1 Drainage area (ac) = 0.110 Runoff coeff. (C) = 0.5 Rainfall Inten (in/hr) = 8.119 Tc by User (min) = 5 IDF Curve = Stone Creek Cottages.IDF Rec limb factor = 1.00 Hydrograph Volume = 134 (cuft); 0.003 (acft) 0 5 10 Q (cfs) 0.00 0.00 0.05 0.05 0.10 0.10 0.15 0.15 0.20 0.20 0.25 0.25 0.30 0.30 0.35 0.35 0.40 0.40 0.45 0.45 0.50 0.50 Q (cfs) Time (min) Runoff Hydrograph 25-yr frequency Runoff Hyd - Qp = 0.45 (cfs) Channel Report Hydraflow Express Extension for Autodesk® AutoCAD® Civil 3D® by Autodesk, Inc. Thursday, Oct 4 2018 PD21 Triangular Side Slopes (z:1) = 3.00, 3.00 Total Depth (ft) = 1.00 Invert Elev (ft) = 2170.00 Slope (%) = 2.00 N-Value = 0.027 Calculations Compute by: Known Q Known Q (cfs) = 4.66 Highlighted Depth (ft) = 0.66 Q (cfs) = 4.660 Area (sqft) = 1.31 Velocity (ft/s) = 3.57 Wetted Perim (ft) = 4.17 Crit Depth, Yc (ft) = 0.69 Top Width (ft) = 3.96 EGL (ft) = 0.86 0 1 2 3 4 5 6 7 8 Elev (ft)Depth (ft)Section 2169.50 -0.50 2170.00 0.00 2170.50 0.50 2171.00 1.00 2171.50 1.50 2172.00 2.00 Reach (ft) 10/4/2018 ECMDS 6.0 https://ecmds.com/project/137453/channel-analysis/148861/show 1/1 North American Green 5401 St. Wendel-Cynthiana Rd. Poseyville, Indiana 47633 Tel. 800.772.2040 >Fax 812.867.0247 www.nagreen.com ECMDS v6.0 CHANNEL ANALYSIS > > > PD21 Name PD21 Discharge 4.66 Peak Flow Period 24 Channel Slope 0.02 Channel Bottom Width 0 Left Side Slope 3 Right Side Slope 3 Low Flow Liner Retardence Class C 6-12 in Vegetation Type Mix (Sod and Bunch) Vegetation Density Good 75-95% Soil Type Sandy Loam SC250 - Class C - Mix (Sod & Bunch) - Good 75-95% Phase Reach Discharge Velocity Normal Depth Mannings N Permissable Shear Stress Calculated Shear Stress Safety Factor Remarks Staple Pattern SC250 Unvegetated Straight 4.66 cfs 3.58 ft/s 0.66 ft 0.027 2.5 lbs/ft2 0.82 lbs/ft2 3.04 STABLE E SC250 Reinforced Vegetation Straight 4.66 cfs 3.58 ft/s 0.66 ft 0.027 8 lbs/ft2 0.82 lbs/ft2 9.73 STABLE E Underlying Substrate Straight 4.66 cfs 3.58 ft/s 0.66 ft --0.8 lbs/ft2 0.38 lbs/ft2 2.08 STABLE -- 123456789101112131415Private, PavedDriftwood LaneMCDOWELL ROAD - SR 1349WM4WV6FH3ARV1WM6WM5WM7WM8WV9FH4WV7WV10WM98" Maple10' Maple30" HickoryDouble BirchTriple BirchDouble BirchTree LineMulchMulchMulchPrivate, PavedDriftwood LaneMCDOWELL ROAD - SR 1349WM4WV6FH3ARV1WM6WM5WM7WM8WV9FH4WV7WV10WM98" Maple10' Maple30" HickoryDouble BirchTriple BirchDouble BirchTree LineMulchMulchMulchKnow what'sbelow.before you dig.CallRSHEETVICINITY MAP(NOT TO SCALE)MICHAEL LOVOY, P.E. 34 BIG BEAR TRAIL ASHEVILLE, NC 28805 (828) 545-5393 mlovoy@aceasheville.com NORTH CAROLINA FIRM NUMBER C-2849THE COTTAGES AT STONE CREEK DRIFTWOOD LANE MILLS RIVER, NORTH CAROLINA HENDERSON COUNTY1744UAG05-10-18NANAPROJECT NO.:DRAWN BY:DATE:COA PROJECT NO.:MSD PROJECT NO.:NORTHPROJECT DATAPIN9632275494ADDRESSDRIFTWOOD LNDEED BOOK/PAGE13177/13SITE ACREAGE12.08 ACRESZONINGMR-MUSETBACKSFRONT N/ASIDE N/AREARN/ADISTURBED AREA:6.23 ACIMPERVIOUS CALCULATIONS:IMPERVIOUSPERVIOUSPRE-DEVELOPMENT:0.1 ACRES (1%)12.07 ACRES (99%)POST-DEVELOPMENT:1.71 ACRES (14%)10.37 ACRES (86%)DEVELOPMENT DATAOWNER/DEVELOPER:CONTACT:SURVEYOR:CONTACT:MOORE & SON SITE CONTRACTORS, LLC103 MCDOWELL ROADMILLS RIVER, NC 28759(828) 891-8900ASSOCIATED LAND SURVEYORSP.O. BOX 578HORSE SHOE, NC 28742CAMERON BAKER(828) 890-3507CIVIL ENGINEER:CONTACT:ADVANTAGE CIVIL ENGINEERING, P.A.340 BIG BEAR TRAILASHEVILLE, NORTH CAROLINA 28805MIKE LOVOY, P.E.(828) 545-5393STORM DRAINAGE AREA MAPSTORM DRAINAGE AREA MAP Private, PavedDriftwood LaneMCDOWELL ROAD - SR 1349WM4WV6FH3ARV1WM6WM5WM7WM8WV9FH4WV7WV10WM9WM12WM11WM10SHEET C000 8" Maple10' Maple30" HickoryDouble BirchTriple BirchDouble BirchTree LineMulchMulchMulchDistance74.87'76.63'30.48'45.26'57.89'56.54'19.73'67.17'53.92'43.26'85.87'L2-L5 runs with Centerline of Creek43.18'123456789101112131415Know what'sbelow.before you dig.CallRSHEETVICINITY MAP(NOT TO SCALE)MICHAEL LOVOY, P.E. 34 BIG BEAR TRAIL ASHEVILLE, NC 28805 (828) 545-5393 mlovoy@aceasheville.com NORTH CAROLINA FIRM NUMBER C-2849THE COTTAGES AT STONE CREEK DRIFTWOOD LANE MILLS RIVER, NORTH CAROLINA HENDERSON COUNTY1744UAG05-10-18NANAPROJECT NO.:DRAWN BY:DATE:COA PROJECT NO.:MSD PROJECT NO.:NORTHPROJECT DATAPIN9632275494ADDRESSDRIFTWOOD LNDEED BOOK/PAGE13177/13SITE ACREAGE12.08 ACRESZONINGMR-MUSETBACKSFRONT N/ASIDE N/AREARN/ADISTURBED AREA:6.23 ACIMPERVIOUS CALCULATIONS:IMPERVIOUSPERVIOUSPRE-DEVELOPMENT:0.1 ACRES (1%)12.07 ACRES (99%)POST-DEVELOPMENT:1.71 ACRES (14%)10.37 ACRES (86%)DEVELOPMENT DATAOWNER/DEVELOPER:CONTACT:SURVEYOR:CONTACT:MOORE & SON SITE CONTRACTORS, LLC103 MCDOWELL ROADMILLS RIVER, NC 28759(828) 891-8900ASSOCIATED LAND SURVEYORSP.O. BOX 578HORSE SHOE, NC 28742CAMERON BAKER(828) 890-3507CIVIL ENGINEER:CONTACT:ADVANTAGE CIVIL ENGINEERING, P.A.340 BIG BEAR TRAILASHEVILLE, NORTH CAROLINA 28805MIKE LOVOY, P.E.(828) 545-5393EROSION CONTROLDRAINAGE AREA MAPEROSION CONTROL DRAINAGE AREA MAP