Loading...
HomeMy WebLinkAboutSW1160801_HISTORICAL FILE_20160815STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. I SWff4<)9 DOC TYPE I ❑ CURRENT PERMIT ❑ APPROVED PLANS HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE I ,2elO0k/,r YYYYMMDD �ISAAlWSo CIVIL ENGINEERING DESIGN & LAND SURVEYING C� 8720 RED OAK BOULEVARD, STE. 420 CHARLOTTE, N.C. 28217 PHONE (704) 527-3440 FAX (704) 527-8335 TO NCDEMLR Stormwater Permitting Section 1612 Mail Service Center Raleigh NC 27699-1612 WE ARE SENDING YOU El Attached ❑ Shop drawings ❑ Prints ❑ Copy of letter ❑ Disk LETTER OF TRANSMITTAL DATE: 8/2/2016 JOB NUMBER: 16055 ATTENTION: Mike Randall RE: Bojangles 3575 Boylston Hwy 919-807-6374 ❑ Under Separate cover via ❑ Plans 0 signatures ❑ Applications the following items: ❑ Specifications COPIES DATE NO. DESCRIPTION 1 8/2/2016 Original SW Permit Application 1 8/2/2016 Copy of SW Permit Application 2 8/2/2016 Civilplans dated 7-14-16 (12 sheets) 1 8/2/2016 Original O&M Agreement 1 8/2/2016 $505 Processing Fee to NCDEMLR 1 8/2/2016 Project Calculations 1 8/2/2016 USGS Map of Site 1 8/2/2016 Copy of Current Deed 1 8/2/2016 1401 Supplemental Form THESE ARE TRANSMITTED as checked below ❑ For approval ❑ Approved and submitted ❑ Resubmit copies for approval ❑ For your use ❑ Approved as noted ❑ Submit copies for distribution Q As requested ❑ Returned for corrections ❑ Return corrected prints ❑ For review and comment ❑ REMARKS If you have any question please do not hesitate to call Bob Spalding 704-227-9424 or Brian Upton 704-227-9406. Fze�ewed Se``tOn 01V1-U Wjgd �131bM641ctt).iS A-L11 yob 4rVV7 ?�h'3q siozso �,rl COPY TO SIGNED Bob Spalding Energy, Mineral and Land Resources ENVIRONMENTAL OUALITV August 12, 2016 Ms. Sharon Thurner Rigsby Family Holdings, LLC 142 Airport Road, Ste C Arden, North Carolina 28704 Subject: Stormwater Permit No. SW 1160801 Bojangles' Mill River, NC, Henderson County Dear Ms. Thurner: PAT MCCRORY Qmrrnnr DONALD R. VAN DER VAART See, el v TRACY DAVIS The Division of Energy, Mineral, and Land Resources (DELMR), received a complete Stormwater Management Permit Application for the subject project on August 5, 2016. Staff review of the plans and specifications has determined that the project, as proposed, will comply with the Stormwater Regulations set forth in Title 15A Section NCAC 214.1000. We are forwarding Permit No. SW 1160801, dated August 11, 2016, for the construction, operation and maintenance of the subject project and the stormwater system. This permit shall be effective from the date of issuance until August 11, 2024, or until rescinded and shall be subject to the conditions and limitations as specified therein, and does not supersede any other agency permit that may be required. If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an adjudicatory hearing by filing a written petition with the Office of Administrative Hearings (OAH). The written petition must conform to Chapter 150B of the North Carolina General Statutes. Per NCGS 143-215(e) the petition must be filed with the OAH within thirty (30) days of receipt of this permit. You should contact the OAH with all questions regarding the filing fee (if a filing fee is required) and/or the details of the filing process at 6714 Mail Service Center, Raleigh, NC 27699-6714, or via telephone at 919-431-3000, or visit their website at www.NCOAH.com. Unless such demands are made this permit shall be final and binding. This project will be kept on file at the Asheville Regional Office. If you have any questions, or need additional information concerning this matter, please contact Mike Randall at (919) 807-6374; or mike.randall@ncdenr.gov. Sincerely, for Tracy E. Davis, PE, CPM, Director cc: SW1160801 File, Asheville Regional Office cc: Brian Upton, The Isaacs Group Bob Spalding, The Isaacs Group Received AUG 1 5 2016 Land Quality Section Asheville state of North Carolina I Environmental Qua l ily I Energy, Mineral and land Resonam 1612 Mail Service Center I Raleigh, North Carolina 27699-1612 919-807-6375 / 41 =ISAACSo CIVIL ENGINEERING DESIGN & LAND SURVEYING 8720 RED OAK BOULEVARD, STE. 420 CHARLOTTE, N.C. 28217 PHONE (704) 527-3440 FAX (704) 527-8335 Bojangles 3591 Boylston Hwy Mills River, North Carolina SEAL = ; 0259M z qN T. U�%•``�• •7rLtl►L IzeceNed AUG 15 ZOI6 Wad Quality Section Asheville l Ll t IIIgll CARO THEISAACS o GROUP, P.C. m ENGINEERING& 9 ;LAND SURVEYING - a T NO. C-1069 A w e""6111130 ° Bojangles 3591 Boylston Hwy Mills River, NC This project requirements are to meet water quality per the NCDENR Design Manual and Detention per NCDOT requirements. The project entails the construction of a 3,886 S.F. Bojangles Restaurant. Total Site area is 1.28 a.c. and proposed BUA is 0.83 acres. A Sandfilter BMP is designed to handle the first I" of rainfall. Due to stormwater entering the NCDOT Storm system the WQ Sandfilter is also used as a detention basin to route post developed Flows for the 1, 10 and 25 year Flows to pre -developed Flows. DETENTION SUMMARY Computer Method Used*: _ Pre (cfs) Post (cfs) Routed (cfs) Elevation (Comments) 1 yr. 0.97 3.60 0.97 2100.58 10 yr. 3.49 7.29 3.45 2101.72 25 yr. 4.83 8.93 4.52 2102.08 100 yr. 7.18 11.60 10.10 2102.21 Revised: October 2010 Page I of 3 PRE -DEVELOPED SUB -BASIN CALCULATIONS: Sub -basin Name/Level: Pre -Developed Area Type of Flow Travel Length (ft.) Slope (%) Mannings (n) Time (min.) Sheet Unpaved 50 4.59 0.24 5.28 Shallow Conc. Un aved 279 2.50 1.82 TOTAL N/A N/A N/A Te Pre = 7.10 Acreage Land Use Soil Type Hydrologic Group CN Weighted CN (Acrtng owl Ann) x(CN) 1.11 Open Space Bradson B 61 52.9 0.02 Impervious Bradson B 98 1.5 0.15 Gravel Bradson B 85 10.0 CNp, 64 POST -DEVELOPED SUB -BASIN CALCULATIONS: Sub -basin Name/Level: Post -developed Area on -site Type of Flow Travel Length (ft.) Slope (%) I Mannings (n) Time (min.) TOTAL N/A N/A N/A Tc P.,=S Acreage Land Use Soil Type Hydrologic Group CN Weighted CN (AnvagerraW Art.) a (CN) 0.83 Im ervious Bradson B 98 70.7 0.32 Open Space Bradson B 61 17.0 CNpos,= 88 Sub -basin Name/Level: Post Bypass Area Type of Flow Travel Length (ft.) Slope (%) Mannings (n) I Time (min.) TOTAL N/A N/A N/A I Tc =5.0 Acreage Land Use Soil Type Hydrologic Group CN Weighted CN (Acrtagero W Arta) a (CNI 0.13 Oven S ace Bradson B 61 61.00 CNros,= 61 Revised: October 2010 Page 2 of 3 STORAGE / DISCHARGE CALCULATIONS Elevation Underground * Above Ground Total Ace. Volume Ace. Volume for all Structures (cf) Area (sq. ft.) Inc. Volume (cf) Ace. Volume (cf) ( (Above and U 2098.00 2098.00 0 320 0 0 0 2099.00 0 1517 919 919 919 2099.74 0 1942 1272 2191 2191 Stage Discharge Cc= orifice coefficient: Cw = weir coefficient. Orifice Area unit shall be square feet (sf). Elevation / Stage (ft) Orifice 1 32 x10 ft. 2098 Inv. 320 Area Co= Orifice 2 6.5 In. 2099.8 Inv. 0.230 Area Co= 0.60 Weir 3 0.417 Ft. 2100.6 Inv. Cw= 3.1 Weir 4 Primary Spillway 15.583 Ft. 2102.05 Inv. Cw= 3.10 Outlet Control Pipe 18 Din 35 Length 2095.75 Inv Emergency I Spillway 5_Ft. 2102.10 Inv. Cw= 3.10 Total Q (cfs) 2098.00 2099.00 0.02 0.02 2099.80 0.03 0.03 2100.00 0.03 0.10 0.13 2100.60 0.04 0.92 0.96 2101.00 0.04 1.23 0.33 1 1 1.59 2102.00 0.05 1.78 2.14 3.97 2102.05 0.05 1.80 2.26 4.11 2102.10 0.05 1.82 2.37 0.54 4.79 2102.50 0.06 2.00 3.39 14.58 3.92 23.94 2103.00 0.06 2.19 4.81 44.73 13.23 65.02 Revised: October2010 Page 3 of 3 w ]4'rN 3S 24Y N 3 Soil Map —Henderson County, North Carolina M 3 rd � 357430 357440 35/450 3W460 357470 357480 .1.E_1. 1, .i I • .>�. 3W430 3W440 357450 357460 35470 357480 357490 3575M 357510 357520 3575M 3 3 ti Map Sde: 1:748 if Pnnaed m A p0rtrat (8.5" x Il") sled. R m N Mears o la zo ao so � A O 0 35 70 140 21F Map pojP4tXi: Web Marmtor Correr ooNdnates: WGS84 Edge ti: t17M Zane 17N WGS84 k u» Natural Resources Web Soil Survey 6/1812016 Conservation Service National Cooperative Soil Survey Page 1 of 3 3S 24' T N Soil Map —Henderson County, North Carolina Map Unit Legend Henderson County, North Carolina (NC089) Map Unit Symbol Map Unit Name Acres In AOI Percent of AOI BaB I Bradson gravelly loam, 2 to 7 ( percent slopes 1.91 99.9 % I DeB Delanco (dillard) loam, 2 to 7 percent slopes 0.0 ; I 0.1% I Totals for Area of Interest _ ^ _ 1.9 10l .0%, Natural Resources Web Soil Survey 6/18/2016 �� Conservation Service National Cooperative Soil Survey Page 3 of 3 Soil Map —Henderson County, North Carolina MAP LEGEND MAP INFORMATION The soil surveys that comprise your AOI were mapped at 1:20,000. Area of Interest (AOI) Spoil Area O Area of Interest (AOI) Q Stony Spot Warning: Soil Map may not be valid at this scale. Solis � Very Stony Spot Enlargement of maps beyond the scale of mapping can cause Soil Map unit Polygons misunderstanding of the detail of mapping and accuracy of soil line ,y Soil Map Unit Lines Wet Spot placement. The maps do not show the small areas of contrasting Other soils that could have been shown at a more detailed scale. Soil Map Unit Points .� Special Line Features Please rely on the bar scale on each map sheet for map Special Point Features V Bbwoul Water Features measurements. ISource Streams and Canals of Map: Natural Resources Conservation Service ® Borrow Pit Transportation Web Soil Survey URL: http://websoilsu"ey.nres.usda.gov Clay Spot t-r-r Rails Coordinate System: Web Mercator (EPSG:3857) 0 Closed Depression ,y Interstate Highways Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts Gravel Pit ry US Routes distance and area. A projection that preserves area, such as the „ Gravelly Spot ti Major Roads Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. ® Landfill 0�9 Local Roads This product is generated from the USDA-NRCS certified data as of A. Lava Flow Background the version date(s) listed below. ,y Marsh or swamp . Aerial Photography Soil Survey Area: Henderson County, North Carolina AR Mine or Quarry Survey Area Data: Version 15. Sep 15, 2015 ® Miscellaneous Water Soil map units are labeled (as space allows) for map scales 1:50,000 ® Perennial Water or larger. Date(s) aerial images were photographed: Oct 15, 2011—Dec 9, y Rock Outcrop 2011 + Saline Spot The orihophoto or other base map on which the soil lines were Sandy Spot compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting Severely Eroded Spot of map unit boundaries may be evident. Sinkhole Slide or Slip Sodic Spot USDA Natural Resources Web Soil Survey 6/18/2016 T Conservation Service National Cooperative Soil Survey Page 2 of 3 Bojangles 3591 Boylston Hwy Mills River, North Carolina Water Quality Calculations SAND FILTER CALCULATIONS Bojangles - Mills River NC Sand Filter BMP Calculations Sand Filter Designed per NC Div. of Water Quality and Post -Construction Stormwater Regulations Sand Filter designed for contributing drainage area See DA Maps for Pre and Post -developed drainage area maps BMP Drainage Information: Drainage Facility No.: 1 Total Drainage Area, AD (Ac.) = 1.15 See Drainage Area Exhibit Impervious Area (Ac.) = D.83 Total Proposed Impervious Area On -Site Percent Impervious Area, I,, = 72 SCS Curve Number, CN = 88 Time of Concentration, 4 = NIA See Computer Output Stage -Storage Information: Top of Filter Media = 2098 Elevation Surface Area (Rr) a Incremental Volume (g) Cumulative Volume (ft) Forebay Surface Area (fitz) Forebay Cumulative Volume (ft) 2098.00 320 0 0 0 0 2099.00 1517 919 919 606 303 2099.74 1942 1,272 2,191 866 844 2100.00 2143 540 2,731 844 2101.00 2682 2,924 5,114 2102.00 3266 2,974 8,088 2103.00 3894 3,580 11,668 Compute Water Duality Volume (WO.,) - Schueler Method (First Flush = 1" Runoff Coefficient, R. = 0.6996 = 0.05 + 0.009(1,) Water Quality Volume, WO, (acre-feet) = 0.067042 = 1.OR,.Aol12 Water Qualitv Volume, WO, (ft3) = 2920.34 = (43,560)(1.0)R,Apl12 Water Quality Volume (adjusted), WOv (ft3) = 2190.25 0.75 WQv Water Quality Storage Elevation = 2099.74 Compute Pretreatment System Requirements: The sediment chamber storage area above the filter media must be sized to hold 20 percent of the water quality volume Required Sediment Forebay Volume (ft3) = 584 Forebay Volume Provided @ WO Storage Elevation (113) = 844 28.91 Sand Filter Bed Surface Area: Depth of sand filter bed, dr (it) = 1.5 = minimum depth of 1.5 ft (Per NCDENR Manual) Coefficient of permeability for sand filter bed, k (ft/day) = 3.5 = 1.75 inch/hour Time required to drain WO, through sand filter, if (day) = 1.66 = 40 hours Average head, hr (ft) = 0.87 = WO, Storage Depth Required Surface Area for Sand Filter Bed, A, (ff) = 318 = (WQ,)(dr)/(k)(Ir)(hi + dr) Dan:ys E4uafion Provided Surface Area for Sand Filter Bed. A, (ft2)= 320 Stage -Discharge for Sand Filter Media: Aq=(WO,)(di)Ij(k)(tr)(hi+di)] Darcy's Equation (W Q,)/(4) = % = (7N)(k)(h, + dd/(dd A, = provided surface area of filter bed (ft') d,= filter bed depth (it) k = coefficient of permeability of filter media (ft/day) hr = average height of water above filter bed (ft) Elevation hi (it) 0, (cf/day) oa (cfs) 10'Qo (cfs) 2.098.00 0.00 0 0.00 0.00 2,099.00 1.00 1,867 0.02 0.22 2,099.74 1.74 2,416 0.03 0.28 2,100.00 2.00 2,613 0.03 0.30 2,101.00 3.00 3,360 0.04 0.39 2,102.00 4.00 4,107 0.05 0.48 2.103.00 5.00 4,853 0.06 0.56 P:\Active Projects\Bojangles\Mills River Boylston Hwy 16055\Engineering\Calculations\16055-SAND FILTER -OPEN BASIN-latest.xls Bojangles 3591 Boylston Hwy Mills River, North Carolina Detention Calculations NOAA Atlas 14, Volume 1, Version 5 ff �...,� Location name: *, Longitude: Arizona US*530 NOW Latitude: 35.1750°, Longitude:-111.9530° Elevation: 6764 ft p 0' source: Google Maps "!�„,,u� POINT PRECIPITATION FREQUENCY ESTIMATES Sanja Perim, Sarah Dietz, Sarah Heim, Lillian Hiner, Kazungu Modena, Deborah Martin. Sandra Pavlovic, Ishani Roy, Carl Trypaluk, Dale Unruh, Fenglin Yen, Michael Yekta, Tan Zhao, Geoffrey Bonnin, Daniel Brewer, U-Chuan Chen, Tye Parzybok, John Yarchoan NOAA, National Weather Service, Silver Spring, Maryland PF tabular I PF graphical I Maps aerials PF tabular PDS-based point precipitation frequency estimates with 90% confidence intervals (in inches/hour)1 Average recurrence Interval (years) Duration 1 ���0000�00 2 5 10 25 50 100 200 500 1000 2.71 3.50 4.74 5.76 7.24 8.45 9.70 112 13.4 15. 2 5-min �in2 (2.34-3.17) 1 (3.02-4.08) 1 (4.07-5.51) 1 (4.92.6.68) (6.11-8.35) (7.09-9.77) (8.09-11.3) (9.16-13.0) (10.7-15.6) (11.9-17.9) 2.06 2.66 3.61 4.39 5.50 6.43 7.45 B.55 102 11.6 10anin (1.78.2.41) 1 (2.30-3.11) 1 (3.10-4.19) 1 (3.74-5.09) 1 (4.66.6.36) 15.39-7.43) 1 (6.16-8.62) 1 (6,97-9.91) 1 (8.11-11.9) (9.04-13.6) 1.70 220 2.98 3.62 4.55 5.72 6.16 7.07 8.40 9.55 15-min (1.47-1.99) 1 (1.90-2.57) 1 (2.56.3.46) 1 (3.10-4.20) 1 (3.85-5.26) 1 (4.46.6.14) 1 (5.09.7.12) 1 (5.76.8.19) 1 (6.70-9.82) 1 (7.47-11.3) 1.15 1.48 2.01 2A4 3.06 3.58 4.15 4.76 5.66 6.43 30-min (0.988.1.34) 1 (1.28-1.73) 1 (1.73-2.33) 1 (2.08-2.83) 1 (2.59-3.54) 1 (3.00-4.14) 1 (3.43-4.79) 1 (3.88-5.52) 1 (4.51-6.61) 1 (5.03-7.58) 0.710 0.919 1.24 1.51 1.90 221 2.56 2.94 3.50 3.98 60♦rlin (0.612-0.830) (0.791-1.07) 1 (1.07-1.44) 1 (1.29-1.75) 1 (1.60.2.19) 1 (1.86-2.56) 1 (2.12.2.97) 1 (2.40.3.41) 1 (2.79-4.D9) (3.11-4.69) 0422 0.534 0.706 0.849 1.06 123 1.43 1.64 1.95 2.21 2-hr (0.370-0.484) (0.468-0.614) (0.616-0.809) (0.738-0.970) (0.912.1.21) (1.05-1.41) (1.20.1.63) (1,35-1.87) (1.57-2.24) (1.75-2.56) 0 3 3-hr (0. 82-0362) (0.356-0457) (0456-0585) (0. 39-0695) (0.657-0854) (O. 520986) (0.8551.14) (0.963-5.30) (1.12.55) (1 45377) 0.191 0236 0294 0.344 0.416 OA75 0.539 0.608 0.709 0.793 6•hr (0.171-0.214) (0.213-0.266) (0.263.0.330) (0.306-0.385) (0.368-0.466) (0.416M0.533) (0.467.0.605) (0.520-0.685) (0.594-0.805) (0.653.0.907) 0.122 0.151 0.185 0.213 0.251 0281 0.313 0.345 0.393 0.433 12-hr (0.110.0.137) (0.136-0.170) (0.166.0.207) (0.191.0.238) (0.224.0.281) (0.249-0314) (0.274-0.350) (0.299-0.387) (0.336.0.444) (0.366-0.493) 0.078 0.095 0.118 0.137 0.163 O.184 O.205 0.227 0257 0.280 Y4-hr (0.069.0.083) (0.086-0.104) (0.107-0.130) (0.124-0.151) (0.147-0.180) (0.165.0.202) (0.183-0.225) (0.202-0.250) (0.226-0.283) (0.244-0.310) 0.046 0.058 0.073 0.084 0.101 0.114 0.127 0.141 0.160 0.175 2-0ay (0.D42-0.051) (0.053-0.064) (0.066.0.080) (0.076-0.D93) (0.091-0.111) (0.102.0.125) (0.114-0.140) (0.125-0.156) (0.140-0.177) (0.152-0.195) 0.033 0.042 0.052 0.061 0.073 0. 883 0.093 0.103 0.118 0.129 3-0ay (0.0340.037)( 0.038-0.046) (0.D48.0.058) (0.055.0.067) (0.066.0.080) (0.074.0.091) (0.083-0.102) (0.092-0.114) (0.103-0.130) (0.112.0.144) 0.027 0.034 0.042 0.049 0.059 0.067 0.076 0.084 0.097 0.106 4-0ay (0.025.0.030) (0.031.0.037) (0.039-0.047) (0.045-0.054) (0.054-0.065) (0.061.0.074) (0.068-0.OB3) (0.075-0.093) (0.085.0.107) 10.092.0.118) 0.023 0.028 0.033 0.039 0.045 0.050 0.056 0.063 0.069 F7d a y0.018 7-0ay (0.017-0.020) (0.021.0.025) (0.026-0.031) (0.030-0.036) (0.036-0.043) (0.040.0.049) (0.045-0.055) (0.050.0.061) (0.056-0.070) (0.061.0.0771 0.015 0.018 0.023 0.026 0.031 0.034 0.038 0.042 0.047 0.051 10-0ay (0.013-0.016) (0.017-0.020) (0.021.0.025) (0.024.0,029) (0.028-0,034) (0.031-0.038) (0.034-0.042) (0.037-0.046) (0.042.0.052) (0.045-0.056) 0.010 0.012 0.015 0.017 0.020 0.022 0.023 0.025 0.028 0.029 20-0ay (0.009-0.011) (0.011-0.013) (0.014.0.016) (0.016-0.019) (0.018-0.021) (0.020-0.024) (0.021-0.026) (0.023.0.028) (0.025-0.030) (0.026-0.032) 0.008 0.010 0.012 0.014 0.016 ()-ov 0.o19 0.020 0.022 0.023 30-0ay (0.007-0.009) (0.009.0.011) (0.011.0.013) (0.012-0.015) (0.014-0.017) (0.016-0.019) (0.017-0.021) (0.018-0.022) (0.020-0.024) (0.021-0.026) 0.006 0.008 0.010 0.011 0.013 0.014 0.015 0.016 0.018 0.019 45-0ay (0.006.0.007) (0.007-0.009) (0.009-0.011) (0.010-0.012) (0.011-0.014) (0.013.0.015) (0.014-0.017) (0.015-0.018) (0.016-0.020) (0.017.0.021) 0.006 0.007 0.008 0.010 0.011 0.012 0.013 0.014 0.015 0.016 60-0ay (0.005.0.006) (0.006-0.008) (0.008.0.009) (0.009-0.011) (0.010-0.012) (0.011.0.013) (0.112-0.014) (0.012-0.015) (0.013.0.017) (0.014-D.018) 1 Precipitation frequency (PF) estimates in this table are based on frequency analysis of partial duration series (PDS). Numbers In parenthesis are PF estimates at lower and upper bounds of the 90% confidence interval. The probability that precipitation frequency estimates (for a given duration and average recurrence interval) will be greater than the upper bound (or less than the lower bound) is 5%. Estimates at upper bounds are not checked against probable maximum precipitation (PMP) estimates and may be higher than currently valid PMP values. Please refer to NOAA Alias 14 document for more information. Back to Top NOAA Atlas 14, Volume 2, Version 3 Location name: Hendersonville, North Carolina, US• !� Latitude: 35.3333°, Longitude:-82.4500° QQWN Elevation: 2133 ft�'. 4e 'source: Google Maps POINT PRECIPITATION FREQUENCY ESTIMATES G.M. Bonnin, D. Martin, B. Lin, T. Parzybok, M.Yekla, and D. Riley NOAA, National Weather Service, Silver Spring, Maryland PF tabular I PF graphical I Maps & aerials PF tabular PDS-based point precipitation frequency estimates with 90% confidence intervals (in inches)1 Average recurrence Interval (years) Duration 1 2 5 10 25 50 ����� 100 200 500 1000 0A51 0.540 0.607 0.695 0.761 0.828 0.895 0982 1.05 5-min (0.343.0.420) (0.408-0.500) (0.487-0.597) (0.546-0.671) (0.621-0.767) (0.677-0.841) (0.733-0.917) (0.787-0.994) (0.854.1.10) (0.906.1.18) 0.606 0.722 0.864 0.970 1.11 1.21 1.32 tA2 1.55 1.66 10-min (0.548-0.672) (0.653-0.799) (0.780-0.956) 1 (O.B73-1.07) (0.990-1.22) 1 (1.08-1.34) 1 (1.17-1.46) 11 (1.25-1.58) (1.35-1.73) (1.43.1.86) 0.757 0.908 1.09 1.23 1.40 1.53 1.66 1.79 1.98 2.08 15-min (0.684-0.839) (0.820-1.00) (0.987-1.21) 1 (1.10.1.36) 1 (1.25.1.55) 1 (1,47-1Zl) 1 (1.57-1.99) (1.70.2.18) (1.79.2.34) 1.04 125 1.55 1.78 2.08 2.31 2.55 2.79 3.11 3.37 30artin (0.938-1,15) 1 (1.13-1.39) 1 (1.40-1.72) 1 (1.60-1.97) 1 (1.86-2.30) 1 (2.06-2.56) 1 (2.26-2.82) 1 (2.45.3.10) (2.71-3.47) (2.90-3.79) 1.29 1.57 1.99 2.32 2.77 3.13 3S1 3.91 4.46 4.92 60tnin (1.17-1.44) 1 (1.42-1.74) 1 (1.80-2.20) 1 (2.08-2.56) 1 (2.48-3.06) (2.79.3.46) 1 (3.11-3.89) 1 (3.44-4.34) (3.88-4.98) (4.23-5.53) 1.52 1.84 2.33 2.71 325 3.69 4.15 4.65 5.36 5.94 2hr (1.37-1.68) 1 (1.66.2.04) 11 (2.10.2.56) 1 (2.43-2.99) 1 (2.90-3.58) (3,27-4.07) 1 (3.65-4.59) 1 (4.06-5.15) (4.62.5.97) (5.07-6.65) 1.64 1.98 2A8 2.90 3.50 4.00 4.54 5.13 5.99 6.71 3a1r (1.49-1.83) (1.79.2.20) (2.24-2.75) (2.60-3.20) 1 (3.12-3.87) 1 (3.54-4.43) (3.99-5.04) (4.46-5.71) (5.13-6.70) (5.67-7.54) 2.15 2.57 3.17 3.69 4.43 5.08 5.77 6.54 7.67 8.64 6-hr (1.97.2.37) (2.35-2.83) (2.89.3.48) (3.35.4.04) (3.99.4.86) (4.54-5.58) (5.11-6.36) (5.72-7.22) (6.60-8.52) (7.33-9.66) 2.73 327 4.61 4.62 5.46 6.16 6.89 7.67 8.79 9.70 12-hr (2.50-2.99) 1 (3.00.3.58) (3.67-4.39) 11 (4.21-5.04) ll.(4,95-5.97) 1 (5,56-6.74) 1 (6.17-T56) 1 (6.a2.8.45) (7.71-9.73) (8.43-10.8) 3.31 3.97 4.87 5.59 6.59 7.39 822 9.09 10.3 11.2 24-hr (3.07-3.58) 1 (3.69.4.29) (4.52-5.27) 1 (5.18.6.05) 1 (6.08-7.12) 1 (6.80-7.99) 1 (7.53.8.87) 1 (8.27-9.82) (9.27-11.1) (10.1-12.2) 3.94 4.70 5.72 6.54 7.66 8.56 9.49 10.4 11.7 12.a 2day (3,69-4.21) (4.40-5.03) 1 (5.35.6.13) S-09-7.00) (7.11-8.19) 1 (7.92-9.16) 1 (8.74.10.2) 11 (9.57-11.2) (10.7-12.7) (11.6-13.8) 4.2o 5.00 6.04 6.86 7.98 8.88 9.77 10.7 11.9 12.9 3-0ay (3.95.4.48) (4.70.5.34) (5.67-6.45) (6.42.7.32) (7.44-8.51) (8.24-9.46) (9.04-10.4) (9.85-11.4) (10.9.12.8) (11.8-13.9) 4.47 5.31 6.36 7.19 8.30 9.17 10.0 10.9 12.1 13.1 4-0ay (4.20-4.75) (5.00.5.65) (5.98-6.77) (6.75.7.65) 1 (7.77.8.83) (8.58.9.76) (9.34-10.7) (10.1-11.7) (11.2-13.0) (12.0-14.1) 5.21 8.18 7.40 8.38 9.76 10.7 11.8 12.9 14.4 15.6 7Eay (4.90-5.55) (5.83.6.60) (6.96-7.90) (7.87-8.93) (9.08.10.3) (10.0-11.5) (11.0-12.6) 1 (11.9.13.8) (13.2-15.4) (14.2-16.7) 5.88 7.06 8.36 9.40 10.8 11.9 13.1 142 15.7 16.9 10-0ay (5.65-6.31) (6.68-7.47) (7.92.8.86) 1 (8.89.9.95) (10.2.11.4) (11.2-12.6) 1 (12.2-13.8) 1 (13.2-15.1) (14.6-16.7) (15.6-18.1) e.06 9.47 11.0 122 13.7 14.8 16.0 17.1 18.5 19.5 20-day (7.67-8.48) (9.03.9.97) (10.5.11.6) (11.6.12.8) (13.0.14.4) (14.1.15.6) 115.1-16.8) 1 (16.1-18.0) (17.3-19.5) (18.2-20.7) 9.65 11.5 132 14.5 16.0 172 18.3 99.3 20.8 21.8 30day (9.39-10.3) (11.0-12.1) (12.6-13.9) (13.8-15.2) (15.2-16.9) (16.3.18.1) (17.3-19.3) (18.3.20.4) (19.5-21.8) (20.3.22.8) 12.5 14.6 16.5 17.8 19.4 20.6 21.6 22.6 23.7 24.4 45day (12.0-13.1) (14.0.15.3) (15.7.17.2) (17.0.18.6) (18.5.20.3) (19.6-21.6) (20.6-22.7) (21.5-23.7) (22.5-24.9) (23.2-25.7) 14.9 17.4 19.4 20.9 22.6 23.8 24.9 25.9 27.0 27.7 60<lay ( 14 3-15.6) (16.6-18.2) (18.6.20.3) (20.0-21.9) (21.6-23.7) (22.8-25.0) (23.8-26.1) (24.7-27.1) (25.7-28.3) (26.4-29.2) t Precipilation frequency (PF) estimates in this table are based on frequency analysis of partial duration series (PDS). Numbers in parenthesis are PF estimates at boar and upper bounds of the 90% confidence interval. The probability that precipitation frequency estimates (for a gNen duration and average recurrence interval) will be greater than the upper bound (or less than the lower bound) Is 5 % . Estimates at upper bounds are not checked against probable maxtrnum precipitation (PMP) estimates and may be higher than currently valid PMP values. Please refer to NOAA Atlas 14 document for more information. 4w hu A-PRE-DEV A-PRE-0UT POST -DE V-1 _ ® BMP OIf�LET . B-POST-DEV GBMP BASIN D-POST-0UT 20 BB -BYPASS Type•.... Master Network Su,. .ry Page 1.01 Name.... Watershed -File .... W:\PONDPAK\16055\16055.PPW MASTER DESIGN STORM SUMMARY Default Network Design Storm File, ID STORMS.RNQ Hendersnville24 Total Depth Rainfall Return Event in Type RNF File RNF ID ------------ 100 ------ 8.2200 ---------------- Synthetic Curve -------- DETENT ---------------- SCS Type II 25 6.5900 Synthetic Curve DETENT SCS Type II 10 5,5900 Synthetic Curve DETENT SCS Type II 1 3.3100 Synthetic Curve DETENT SCS Type II MASTER NETWORK SUMMARY SCS Unit Hydrograph Method (*Node=Outfall; +Node=Diversion;) (Trun= HYG Truncation: Blank=None; L=Left; R=Rt; LR=Left&Rt) Max Return HYG Vol Qpeak Qpeak Max WSEL Pond Storage Node ID Type Event ac-ft Trun hrs cfs ft ac-ft ----------------- A-PRE-DEV ---- AREA ------ 100 ---------- -- .422 --------- 11.9S00 -------- 7.18 -------------------- A-PRE-DEV AREA 25 .287 11.9500 4.83 A-PRE-DEV AREA 10 .211 12.0000 3.49 A-PRE-DEV AREA 1 .06S 12.0000 .97 *A -PRE -OUT JCT 100 .422 11.9500 7.18 *A -PRE -OUT JCT 25 .287 11.9500 4.83 *A -PRE -OUT JCT 10 .211 12.0000 3.49 *A -PRE -OUT JCT 1 .065 12.0000 .97 B-POST-DEV AREA 100 .650 11.9000 10.92 B-POST-DEV AREA 25 .498 11.9000 8.48 B-POST-DEV AREA 10 .406 11.9000 6.97 B-POST-DEV AREA 1 .201 11.9000 3.52 BB -BYPASS AREA 100 .039 11.9500 .68 BB -BYPASS AREA 25 .026 11.9500 .45 BB -BYPASS AREA 10 .019 11.9500 .32 BB -BYPASS AREA 1 .005 12.0000 .08 C-BMP BASIN IN POND 100 .650 11.9000 10.92 C-BMP BASIN IN POND 25 .498 11.9000 8.48 C-BMP BASIN IN POND 10 .406 11.9000 6.97 S/N: C21B02AO6A82 PondPack Ver. 7.5 (786c) Compute Time: 12:27:46 Date: 07/18/2016 Type ..... Master Network Sui. ry Name.... Watershed File.... W:\PONDPAK\16055\16055.PPW Page 1.02 MASTER NETWORK SUMMARY SCS Unit Hydrograph Method ('Node=Outfall; +Node=Diversion;) (Trun= HYG Truncation: Blank=None; L=Left; R=Rt; LR=Left&Rt) Return HYG Vol Node ID Type Event ac-ft Trun ----------------- C-BMP BASIN IN ---- POND ------ 1 ---------- -- .201 C-BMP BASIN OUT POND 100 .647 C-BMP BASIN OUT POND 25 .495 C-BMP BASIN OUT POND 10 .402 C-BMP BASIN OUT POND 1 .198 'D-POST-OUT JCT 100 .686 •D-POST-OUT JCT 25 .521 'D-POST-OUT JCT 10 .421 •D-POST-OUT JCT 1 .203 Qpeak Qpeak hrs cfs -------- 11.9000 ------- 3.52 12.0000 10.10 12.0500 4.52 12.0500 3.23 12.1000 .93 12.0000 10.74 12.0500 4.82 12.0500 3.45 12.1000 .97 Max Max WSEL Pond Storage ft ac-ft -------------------- 2102.21 .203 2102.08 .192 2101.72 .166 2100.58 .094 S/N: C21BO2AO6A82 PondPack Ver. 7.5 (786c) Compute Time: 12:27:46 Date: 07/18/2016 Type.... Design Storms Page 2.01 Name.... Hendersnville24 File.... W:\PONDPAK\RAINFALL\STORMS.RNQ Title... Bojangles - Mills River NC DESIGN STORMS SUMMARY Design Storm File,ID = STORM5.RNQ Hendersnville24 Storm Tag Name = 100 Description: 100 YEAR ---------------------------------------------------------------------- Data Type, File, ID = Synthetic Storm DETENT.RNF SCS Type II Storm Frequency = 100 yr Total Rainfall Depth= 8.2200 in Duration Multiplier = 1 Resulting Duration = 24.0000 hrs Resulting Start Time= .0000 hrs Step= .1000 hrs End= 24.0000 hrs Storm Tag Name = 25 Data Type, File, ID = Synthetic Storm DETENT.RNF SCS Type II Storm Frequency = 25 yr Total Rainfall Depth= 6.5900 in Duration Multiplier = 1 Resulting Duration = 24.0000 hrs Resulting Start Time= .0000 hrs Step= .1000 hrs End= 24.0000 hrs Storm Tag Name = 10 Data Type, File, ID = Synthetic Storm DETENT.RNF SCS Type II Storm Frequency = 10 yr Total Rainfall Depth= 5.5900 in Duration Multiplier = 1 Resulting Duration = 24.0000 hrs Resulting Start Time= .0000 hrs Step= .1000 hrs End= 24.0000 hrs Storm Tag Name = 1 Data Type, File, ID = Synthetic Storm DETENT.RNF SCS Type II Storm Frequency = 1 yr Total Rainfall Depth= 3.3100 in Duration Multiplier = 1 Resulting Duration = 24.0000 hrs Resulting Start Time= .0000 hrs Step= .1000 hrs End= 24.0000 hrs S/N: C21B02A06A82 PondPack Ver. 7.5 (786c) Compute Time: 12:27:46 Date: 07/18/2016 Type.... Tc Calcs Name.... A-PRE-DEV Page 3.01 File.... W:\PONDPAK\16055\16055.PPW Title... PRE -DEVELOPED AREA #1 ........................................................................ ........................................................................ TIME OF CONCENTRATION CALCULATOR ........................................................................ ........................................................................ PRE -DEVELOPED AREA #1 ------------------------------------------------------------------------ Segment #1: Tc: TR-55 Sheet Description: SHEET FLOW Mannings n Hydraulic Length 2yr, 24hr P Slope Avg.Velocity .2400 50.00 ft 3.9700 in 045800 ft/ft 16 ft/sec Segment #1 Time: 0880 hrs ------------------------------------------------------------------------ Segment #2: Tc: TR-55 Shallow Description: SHALLOW CONCENTRATED Hydraulic Length Slope Unpaved Avg.Velocity 279.00 ft 025000 ft/ft 2.55 ft/sec Segment #2 Time: .0304 hrs ----------------------------------------------------------------------- ------------------------- ------------------------- Total Tc: .1184 hrs ------------------------- ------------------------- S/N: C21BO2AO6A82 PondPack Ver. 7.5 (786c) Compute Time: 12:27:46 Date: 07/18/2016 Type.... Tc Calcs Name.... A-PRE-DEV Page 3.02 File.... W:\PONDPAK\16055\16055.PPW Title... PRE -DEVELOPED AREA #1 ------------------------------------------------------------------------- Tc Equations used... ------------------------------------------------------------------------ ==== SCS TR-55 Sheet Flow ______________________________________________ Tc = (.007 * ((n * Lf)**O.8)) / ((P**.5) * (5f**.4)) Where: Tc = Time of concentration, hrs n = Mannings n Lf = Flow length, ft P = 2yr, 24hr Rain depth, inches Sf = Slope, % ==== SCS TR-55 Shallow Concentrated Flow Unpaved surface: V = 16.1345 * (Sf**0.5) Paved surface: V = 20.3282 * (Sf**0.5) Tc = (Lf / V) / (36005ec/hr) Where: V = Velocity, ft/sec Sf = Slope, ft/ft Tc = Time of concentration, hrs Lf = Flow length, ft S/N: C21BO2AO6A82 PondPack Ver. 7.5 (786c) Compute Time: 12:27:46 Date: 07/18/2016 Type.... Runoff CN-Area Name.... A-PRE-DEV Page 4.01 File.... W:\PONDPAK\16055\16055.PPW Title... PRE -DEVELOPED AREA RUNOFF CURVE NUMBER DATA .......................................................................... .......................................................................... PRE -DEVELOPED AREA -------------------------------------------------------------------------- Impervious Area Adjustment Adjusted Soil/Surface Description CN acres %C %UC CN -------------------------------- OPEN SPACE BaB - TYPE B ---- 61 --------- 1.110 ----- ----- ------ 61.00 IMPERVIOUS BaB - TYPE B 98 .020 98.00 GRAVEL BaB - TYPE B 85 .150 85.00 COMPOSITE ........................................................................... ........................................................................... AREA & WEIGHTED CN ---> 1.280 64.39 (64) S/N: C21BO2A06A82 PondPack Ver. 7.5 (786c) Compute Time: 12:27:46 Date: 07/18/2016 Type.... Runoff CN-Area Page 4.02 Name.... B-POST-DEV File.... W:\PONDPAK\16055\16055.PPW Title... POST -DEVELOPED AREA (ON -SITE) RUNOFF CURVE NUMBER DATA .......................................................................... POST -DEVELOPED AREA (ON-SITE) -------------------------------------------------------------------------- Impervious Area Adjustment Adjusted Soil/Surface Description CN acres %C %UC CN -------------------------------- ---- --------- ----- ----- ------ IMPERVIOUS AREA 98 .830 98.00 OPEN SPACE GOOD GROUP 8 SOIL 61 .320 61.00 COMPOSITE AREA & WEIGHTED CN ---> 1.150 87.70 (88) ........................................................................... ........................................................................... S/N: C21BO2AO6A82 PondPack Ver. 7.5 (786c) Compute Time: 12:27:46 Date: 07/18/2016 Type.... Runoff CN-Area Name.... BB -BYPASS File.... W:\PONDPAK\16055\16055.PPW Title... BYPASS AREA Page 4.03 RUNOFF CURVE NUMBER DATA .......................................................................... .......................................................................... BYPASS AREA -------------------------------------------------------------------------- Impervious Area Adjustment Adjusted Soil/Surface Description CN acres %C %UC CN -------------------------------- ---- --------- ----- ----- ------ OPEN SPACE GOOD GROUP B SOIL 61 .130 61.00 COMPOSITE AREA & WEIGHTED CN ---> 130 61.00 (61) ........................................................................... ........................................................................... S/N: C21BO2AO6A82 PondPack Ver. 7.5 (786c) Compute Time: 12:27:46 Date: 07/18/2016 Type.... Time vs. Volume Page 5.01 Name.... C-BMP BASIN OUT Tag: 25 Event: 25 yr File.... W:\PONDPAK\16055\16055.PPW Storm... SCS Type II Tag: 25 TIME vs. VOLUME (ac-ft) Time I Output Time increment = .0500 hrs hrs I Time on left represents time for first value in each row. --------- 3.6500 1-------------------------------------------------------------- 1 .000 .000 .000 .000 .000 3.9000 1 .000 .000 .000 .000 .000 4.1500 1 .000 .000 .000 .000 .000 4.4000 1 .000 .000 .000 .001 .001 4.6500 1 .001 .001 .001 .001 .001 4.9000 1 .001 .001 .001 .001 .001 5.1500 1 .001 .001 .002 .002 .002 5.4000 1 .002 .002 .002 .002 .002 5.6S00 1 .002 .003 .003 .003 .003 5.9000 1 .003 .003 .003 .004 .004 6.1500 1 .004 .004 .004 .004 .004 6.4000 1 .005 .005 .005 .005 .005 6.6500 1 .006 .006 .006 .006 .006 6.9000 1 .007 .007 .007 .007 .007 7.1500 1 .008 .008 .008 .008 .009 7.4000 .009 .009 .009 .009 .010 7.6500 1 .010 .010 .011 .011 .011 7.9000 1 .011 .012 .012 .012 .012 8.1500 1 .013 .013 .013 .014 .014 8.4000 1 .014 .015 .015 .015 .016 8.6500 1 .016 .017 .017 .017 .018 8.9000 1 .018 .019 .019 .020 .020 9.1500 1 .021 .021 .022 .022 .023 9.4000 1 .023 .024 .024 .025 .025 9.6500 1 .026 .026 .027 .028 .028 9.9000 1 .029 .029 .030 .031 .032 10.1500 1 .032 .033 .034 .035 .036 10.4000 1 .036 .037 .038 .039 .040 10.6500 1 .041 .043 .044 .045 .046 10.9000 1 .047 .049 .050 .052 .053 11.1500 1 .055 .057 .059 .060 .062 11.4000 1 .064 .066 .068 .070 .073 11.6500 1 .078 .085 .094 .107 .123 11.9000 1 .146 .168 .185 .192 .190 12.1500 1 .182 .173 .165 .157 .150 12.4000 1 .143 .137 .132 .127 .122 12.6500 1 .118 .114 .110 .107 .104 12.9000 1 .101 .099 .097 .095 .093 13.1500 1 .091 .089 .087 .086 .085 13.4000 1 .083 .082 .081 .080 .079 13.6500 1 .078 .077 .076 .076 .075 13.9000 1 .074 .074 .073 .073 .072 14,1500 1 .072 .071 .071 .071 .070 14.4000 1 .070 .070 .070 .069 .069 14.6500 1 .069 .069 .068 .068 .068 S/N: C21BO2AO6A82 PondPack Ver. 7.5 (786c) Compute Time: 12:27:46 Date: 07/18/2016 Type%... Time vs. Volume Name.... C-BMP BASIN OUT Tag: 25 File.... W:\PONDPAK\16055\16055.PPW Storm... SCS Type II Tag: 25 TIME vs Time hrs 14.9000 15.1500 15.4000 15.6500 15,9000 16.1500 16.4000 16.6500 16.9000 17.1500 17.4000 17.6500 17.9000 18.1500 18.4000 18.6500 18.9000 19.1500 19.4000 19.6500 19.9000 20.1500 20.4000 20.6500 20.9000 21.1500 21.4000 21.6500 21.9000 22.1500 22.4000 22.6500 22.9000 23.1500 23.4000 23.6500 23.9000 24.1500 24.4000 24.6500 24.9000 25.1500 25.4000 25.6500 25.9000 26.1500 Page 5.02 Event: 25 yr VOLUME (ac-ft) Output Time increment = .0500 hrs Time on left represents time for first value in each row .068 .068 .068 .067 .067 .067 .067 .067 .067 .067 .067 .066 .066 .066 .066 .066 .066 .066 .066 .066 .065 .065 .065 .065 .065 .065 .065 .065 .065 .065 .065 .065 .064 .064 .064 .064 .064 .064 .064 .064 .064 .064 .064 .064 .064 .064 .064 .064 .064 .064 .064 .064 .064 .064 .064 .063 .063 .063 .063 .063 .063 .063 .063 .063 .063 .063 .063 .063 .063 .063 .063 .063 .063 .063 .063 .063 .063 .063 .063 .063 .063 .063 .063 .062 .062 .062 .062 .062 .062 .062 .062 .062 .062 .062 .062 .062 .062 .062 .062 .062 .062 .061 .061 .061 .061 .061 .061 .061 .061 .061 .061 .061 .061 .061 .061 .061 .061 .060 .060 .060 .060 .060 .060 .060 .060 .060 .060 .060 .060 .060 .060 .060 .060 .060 .060 .060 .060 .060 .060 .060 .060 .060 .060 .060 .060 .059 .059 .059 .059 .059 .059 .059 .059 .059 .059 .059 OS9 .059 .059 .059 .059 .059 .059 .059 .059 .059 .059 .059 .059 .059 .059 .059 .OS9 .059 .059 .059 .059 .059 .059 .059 .059 .059 .059 .059 .058 .058 .058 .OS7 .057 .OS7 .057 .056 .056 .056 .056 .055 .055 .055 .055 .055 .054 .054 .054 .054 .OS4 .054 .053 .053 .053 .053 .053 .053 .053 .052 .052 .052 .052 .052 .052 .052 .051 .051 .051 .051 .051 .051 .051 .OSO .050 .050 S/N: C21802A06A82 PondPack Ver. 7.5 (786c) Compute Time: 12:27:46 Date: 07/18/2016 Type.... Time vs. Volume Name.... C-BMP BASIN OUT Tag: 25 File.... W:\PONDPAK\16055\16055.PPW Storm... SCS Type II Tag: 25 Time hrs 26.4000 26.6500 I 26.9000 27.1500 27.4000 27.6500 27.9000 I 28.1500 28.4000 28.6500 28.9000 29.1500 29.4000 29.6500 29.9000 30.1500 30.4000 I 30.6500 30.9000 31.1500 I 31.4000 31.6500 I 31.9000 32.1500 32.4000 32.6500 32.9000 33.1500 33.4000 33.6500 33.9000 34.1500 34.4000 I 34.6500 34.9000 35.1500 35.4000 35.6500 I 35.9000 I 36.1500 36.4000 I 36.6500 36.9000 37.1500 37.4000 37.6500 I Time on left ---------- 050 .050 .049 .048 .048 .047 .047 .046 .046 .045 .044 .044 .043 .043 .042 .042 .041 .041 .040 .040 .039 .038 .038 .037 .037 .036 .036 .035 .035 .034 .034 .033 .033 .032 .032 .031 .031 .030 .030 .029 .029 .028 .028 .028 .027 .027 TIME vs. VOLUME (ac-ft) Output Time increment = represents time for first ------------------------- .050 .050 .049 .049 .049 .049 .048 .048 .048 .048 .047 .047 .047 .046 .046 .046 .045 .045 .045 .045 .044 .044 .044 .044 .043 .043 .043 .043 .042 .042 .042 .042 .041 .041 .041 .040 .040 .040 .039 .039 .039 .039 .038 .038 .038 .038 .037 .037 .037 .037 .036 .036 .036 .036 .035 .035 .035 .035 .034 .034 .034 .034 .033 .033 .033 .033 .032 .032 .032 .032 .031 .031 .031 .031 .030 .030 .030 .030 .029 .029 .029 .029 .028 .028 .028 .028 .027 .027 .027 .027 .027 .026 Page 5.03 Event: 25 yr 0500 hrs value in each row .050 .050 .049 .049 .049 .048 .048 .048 .047 .047 .047 .047 .046 .046 .046 .046 .045 .045 .045 .045 .044 .044 .044 .043 .043 .043 .042 .042 .042 .042 .041 .041 .041 .041 .040 .040 .040 .040 .039 .039 .039 .039 .038 .038 .038 .038 .037 .037 .037 .036 .036 .036 .036 .035 .035 .035 .035 .034 .034 .034 .034 .033 .033 .033 .033 .032 .032 .032 .032 .031 .031 .031 .031 .030 .030 .030 .030 .030 .029 .029 .029 .029 .028 .028 .028 .028 .027 .027 .027 .027 .026 .026 S/N: C21BO2A06A82 PondPack Ver. 7.5 (786c) Compute Time: 12:27:46 Date: 07/18/2016 Type.... Time vs. Volume Page 5.04 Name.... C-BMP BASIN OUT Tag: 25 Event: 25 yr File.... W:\PONDPAK\16055\16055.PPW Storm... SCS Type II Tag: 25 TIME vs. VOLUME (ac-ft) Time Output Time increment = .0500 hrs hrs Time on left represents time for first value in each row. --------- I------------------------------------------------- 37.9000 .026 .026 .026 .026 38.1SO0 I .026 .026 .026 .025 38.4000 .025 .025 .025 .025 38.6500 .025 .025 .025 .025 38.9000 .024 .024 .024 .024 39.1500 .024 .024 .024 .024 39.4000 .024 .023 .023 .023 39.6500 .023 .023 .023 .023 39.9000 .023 .023 .023 .022 40.1500 .022 .022 .022 .022 40.4000 I .022 .022 .022 .022 40.6S00 .021 .021 .021 .021 40.9000 .021 .021 .021 .021 41.1500 I .021 .021 .020 .020 41.4000 .020 .020 .020 .020 41.6500 I .020 .020 .020 .020 41.9000 .019 .019 .019 .019 42.1500 .019 .019 .019 .019 42.4000 .019 .019 .019 .018 42.6S00 .018 .018 .018 .018 42.9000 .018 .018 .018 .018 43.1500 .018 .018 .017 .017 43.4000 .017 .017 .017 .017 43.6500 I .017 .017 .017 .017 43.9000 .017 .017 .016 .016 44.1500 I .016 .016 .016 .016 44.4000 .016 .016 .016 .016 44.6500 I .016 .016 .016 .015 44.9000 .015 .015 .015 .015 45.1S00 I .015 .015 .015 .015 45.4000 .015 .015 .015 .015 45.6500 I .014 .014 .014 .014 45.9000 .014 .014 .014 .014 46.1500 .014 .014 .014 .014 46.4000 .014 .014 .014 .014 46.6500 .013 .013 .013 .013 46.9000 .013 .013 .013 .013 47.1500 .013 .013 .013 .013 47.4000 .013 .013 .013 .012 47.6500 .012 .012 .012 .012 47.9000 .012 .012 .012 .012 48.1500 I .012 .012 .012 .012 48.4000 I .012 .012 .012 .012 48.6500 .011 .011 .011 .011 48.9000 .011 .011 .011 .011 49.1500 I .011 .011 .011 .011 .026 .025 .025 .025 .024 .024 .023 .023 .022 .022 .022 .021 .021 .020 .020 .020 .019 .019 .018 .018 .018 .017 .017 .017 .016 .016 .016 .015 .015 .015 .015 .014 .014 .014 .013 .013 .013 .013 .012 .012 .012 .012 .012 .011 .011 .011 5/N: C21BO2AO6A82 PondPack Ver. 7.5 (786c) Compute Time: 12:27:46 Date: 07/18/2016 Type'.... Time vs. Volume Name.... C-BMP BASIN OUT Tag: 25 ,File.... W:\PONDPAK\16055\16055.PPW Storm... SCS Type II Tag: 25 Time I hrs I Time on left 49.4000 49.6500 49.9000 50.1500 50.4000 50.6500 50.9000 51.1500 51.4000 51.6500 51.9000 52.1500 52.4000 52.6500 52.9000 53.1500 53.4000 53.6500 53.9000 54.1500 54.4000 54.6500 54.9000_ 55.1500 55.4000 55.6500 55.9000 56.1500 56.4000 56.6500 56.9000 57.1500 57.4000 57.6500 57.9000 58.1500 58.4000 58.6500 58.9000 59.1500 59.4000 59.6500 59,9000 60.1500 60.4000 60.6500 .011 .011 .010 .010 .010 .010 .010 .009 .009 .009 .009 .009 .009 .008 .008 .008 .008 .008 .008 .007 .007 .007 ..007 .007 .007 .007 .006 .006 .006 .006 .006 .006 .006 .006 .006 .005 .005 .005 .005 .005 .005 .005 .005 .005 .005 .004 TIME vs. VOLUME (ac-ft) Page 5.05 Event: 25 yr Output Time increment = .0500 hrs represents time for first value in each row. --------------------------------------------- .011 .011 .011 .011 .011 .011 .010 .010 .010 .010 .010 .010 .010 .010 .010 .010 .010 .010 .010 .010 .010 .010 .010 .010 .010 .010 .009 .009 .009 .009 .009 .009 .009 .009 .009 .009 .009 .009 .009 .009 .009 .009 .009 .009 .009 .009 .009 .009 .009 .008 .008 .008 .008 .008 .008 .008 .008 .008 .008 .008 .008 .008 .008 .008 .008 .008 .008 .008 .008 .008 .008 .008 .008 .008 .008 .007 .007 .007 .007 .007 .007 .007 .007 .007 .007 .007 .007 .007 .007 .007 .007 .007 .007 .007 .007 .007 .007 .007 .007 .007 .007 .007 .007 .007 .006 .006 .006 .006 .006 .006 .006 .006 .006 .006 .006 .006 .006 .006 .006 .006 .006 .006 .006 .006 .006 .006 .006 .006 .006 .006 .006 .006 .006 .006 .006 .006 .006 .006 .005 .005 .005 .005 .005 .005 .005 .005 .005 .005 .005 .005 .005 .005 .005 .005 .005 .005 .005 .005 .005 .005 .005 .005 .005 .005 .005 .005 .005 .005 .005 .005 .005 .005 .005 .005 .005 .005 .005 .005 .005 .004 .004 .004 .004 .004 S/N: C21BO2AO6A82 PondPack Ver. 7.5 (786c) Compute Time: 12:27:46 Date: 07/18/2016 Type..... Time vs. Volume Page 5.06 Name.... C-BMP BASIN OUT Tag: 25 Event: 2S yr ,File.... W:\PONDPAK\16055\16055.PPW Storm... SCS Type II Tag: 25 TIME vs. VOLUME (ac-ft) Time Output Time increment = .0500 hrs hrs Time on left represents time for first value in each row. --------- 60.9000 I-------------------------------------------------------------- I .004 .004 .004 .004 .004 61.1500 I .004 .004 .004 .004 .004 61.4000 I .004 .004 .004 .004 .004 61.6500 I .004 .004 .004 .004 .004 61.9000 I .004 .004 .004 .004 .004 62.1500 I .004 .004 .004 .004 .004 62.4000 I .004 .004 .004 .004 .004 62.6SOO I .004 .004 .004 .004 .004 62.9000 I .004 .004 .004 .004 .004 63.1500 I .004 .004 .004 .004 .004 63.4000 I .004 .004 .004 .004 .004 63.6500 .004 .004 .004 .003 .003 63.9000 I .003 .003 .003 .003 .003 64.1500 .003 .003 .003 .003 .003 64.4000 I .003 .003 .003 .003 .003 64.6500 I .003 .003 .003 .003 .003 64.9000 I .003 .003 .003 .003 .003 S/N: C21BO2AO6A82 ' PondPack Ver. 7.5 (786c) Compute Time: 12:27:46 Date: 07/18/2016 Type..... Vol: Elev-Volume Name.... C-BMP BASIN ALT1 Page 6.01 File.... W:\PONDPAK\16055\16055.PPW Title... DETENTION BASIN USER DEFINED VOLUME RATING TABLE Elevation (ft) 2098 00 2099.00 2099.74 2100.00 2101.00 2102.00 2103.00 Volume (ac-ft) 000 .021 .050 .063 .117 .186 .268 S/N: C21BO2AO6A82 PondPack Ver. 7.5 (786c) Compute Time: 12:27:46 Date: 07/18/2016 Type..... Outlet Input Data Name.... BMP OUTLET Page 7.01 File.... W:\PONDPAK\16OS5\16055.PPW Title... BASIN OUTLET STRUCTURE REQUESTED POND WS ELEVATIONS: Min. Elev.= 2098.00 ft Increment = .50 ft Max. Elev.= 2103.00 ft tii#####Y#itt#*situ tiitiititi#tittR##tititt#i OUTLET CONNECTIVITY itiittiiititi#tttti####t#t#t###;iiittiiiit;t;i > Forward Flow Only (Upstream to DnStream) <_-- Reverse Flow Only (DnStream to Upstream) < ---> Forward and Reverse Both Allowed Structure User Defined Table Orifice -Circular Weir -Rectangular Weir -Rectangular Weir -Rectangular TW SETUP, DS Channel No. Outfall El, ft E2, ft ---- 1 ------- ---> TW --------- .000 --------- 2103.000 2 ---> TW 2099.800 2103.000 3 ---> TW 2100.600 2103.000 4 ---> TW 2102.050 2103.000 5 ---> TW 2102.100 2103.000 S/N: C21B02AO6A82 PondPack Ver. 7.5 (786c) Compute Time: 12:27:46 Date: 07/18/2016 TypA.... Outlet Input Data Name.... BMP OUTLET Page 7.02 File.... W:\PONDPAK\16055\16055.PPW Title... BASIN OUTLET STRUCTURE OUTLET STRUCTURE INPUT DATA Structure ID = 1 Structure Type = User Defined Table ------------------------------------ ELEV-FLOW RATING TABLE Elev, ft Flow, cfs 2098.00 .00 2099.00 .02 2099.74 .03 2100.00 .03 2101.00 .04 2102.00 .05 2103.00 .06 Structure ID = 2 Structure Type = Orifice -Circular ------------------------------------ # of Openings = 1 Invert Elev. = 2099.80 ft Diameter = .5833 ft Orifice Coeff. _ .600 Structure ID = 3 Structure Type = Weir -Rectangular ------------------------------------ # of Openings = 1 Crest Elev. = 2100.60 ft Weir Length = .42 ft Weir Coeff. = 3.100000 Weir TW effects (Use adjustment equation) S/N: C21B02AO6A82 PondPack Ver. 7.5 (786c) Compute Time: 12:27:46 Date: 07/18/2016 Typa.... Outlet Input Data Name.... BMP OUTLET File.... W:\PONDPAK\16055\16055.PPW Title... BASIN OUTLET STRUCTURE OUTLET STRUCTURE INPUT DATA Structure ID = 4 Structure Type = Weir -Rectangular ------------------------------------ # of Openings = 1 Crest Elev. = 2102.05 ft Weir Length = 15.58 ft Weir Coeff. = 3.100000 Weir TW effects (Use adjustment equation) Structure ID = 5 Structure Type = Weir -Rectangular ------------------------------------ # of Openings = 1 Crest Elev. = 2102.10 ft Weir Length = 5.00 ft Weir Coeff. = 3.100000 Weir TW effects (Use adjustment equation) Structure ID = TW Structure Type = TW SETUP, DS Channel ------------------------------------ FREE OUTFALL CONDITIONS SPECIFIED CONVERGENCE TOLERANCES.'.. Maximum Iterations= 30 Min. TW tolerance = .01 ft Max. TW tolerance = .01 ft Min. HW tolerance = .01 ft Max. HW tolerance = .01 ft Min. Q tolerance = .10 cfs Max. Q tolerance = .10 cfs S/N: C21B02AO6A82 PondPack Ver. 7.5 (786c) Compute Time: 12:27:46 Page 7.03 Date: 07/18/2016 Type;.... Individual Outlet l es Name.... BMP OUTLET Page 7.04 File.... W:\PONDPAK\16055\16055.PPW Title... BASIN OUTLET STRUCTURE RATING TABLE FOR ONE OUTLET TYPE Structure ID = 1 (User Defined Table) -------------------------------------- Upstream ID = (Pond Water Surface) DNstream ID = TW (Pond Outfall) WS Elev,Device Q WS Elev. Q ft cfs -------- 2098.00 ------- .00 2098.50 .01 2099.00 .02 2099.50 .03 2099.80 .03 2100.00 .03 2100.50 .04 2100.60 .04 2101.00 .04 2101.50 .OS 2102.00 .OS 2102.05 .05 2102.10 .05 2102.50 .06 2103.00 .06 Tail Water -------------- TW Elev Converge ft +/-ft Free Outfall Free Outfall Free Outfall Free Outfall Free Outfall Free Outfall Free Outfall Free Outfall Free Outfall Free Outfall Free Outfall Free Outfall Free Outfall Free Outfall Free Outfall Notes -------------------------- Computation Messages -------------------------- Interpolated from input table Interpolated from input table Interpolated from input table Interpolated from input table Interpolated from input table Interpolated from input table Interpolated from input table Interpolated from input table Interpolated from input table 5/N: C21BO2A06A82 PondPack Ver. 7.5 (786c) Compute Time: 12:27:46 Date: 07/18/2016 Type.... Individual Outlet ies Name.... BMP OUTLET Page 7.05 File.... W:\PONDPAK\16055\16055.PPW Title... BASIN OUTLET STRUCTURE RATING TABLE FOR ONE OUTLET TYPE Structure ID = 2 (Orifice -Circular) -------------------------------------- Upstream ID = (Pond Water Surface) DNstream ID = TW (Pond Outfall) WS Elev,Device Q WS Elev. Q ft cfs 2098.00 .00 2098.50 .00 2099.00 .00 2099.50 .00 2099.80 .00 2100.00 .10 2100.50 .82 2100.60 .92 2101.00 1.23 2101.50 1.53 2102.00 1.78 2102.05 1.80 2102.10 1.82 2102.50 2.00 2103.00 2.19 Tail Water Notes TW Elev Converge ft +/-ft Computation Messages Free Outfall HW & TW below invert Free Outfall HW & TW below invert Free Outfall HW & TW below invert Free Outfall HW & TW below invert Free Outfall Upstream HW & DNstream TW < Inv.E1 Free Outfall CRIT.DEPTH CONTROL Vh= .OS4ft Dcr= Free Outfall H =.41 Free Outfall H =.51 Free Outfall H =.91 Free Outfall H =1.41 Free Outfall H =1.91 Free Outfall H =1.96 Free Outfall H =2.01 Free Outfall H =2.41 Free Outfall H =2.91 146ft CRIT.DEPTH S/N: C21BO2AO6A82 PondPack Ver. 7.5 (786c) Compute Time: 12:27:46 Date: 07/18/2016 Type.... Individual Outlet ✓es Name.... BMP OUTLET Page 7.06 File.... W:\PONDPAK\16055\16055.PPW Title... BASIN OUTLET STRUCTURE RATING TABLE FOR ONE OUTLET TYPE Structure ID = 3 (Weir -Rectangular) -------------------------------------- Upstream ID = (Pond Water Surface) DNstream ID = TW (Pond Outfall) WS Elev,Device Q WS Elev. Q ft Cfs -------- 2098.00 ------- .00 2098.50 .00 2099.00 .00 2099.50 .00 2099.80 .00 2100.00 .00 2100.50 .00 2100.60 .00 2101.00 .33 2101.50 1.10 2102.00 2.14 2102.05 2.26 2102.10 2.37 2102.50 3.39 2103.00 4.81 Tail Water -------------- TW Elev Converge ft +/-ft Free Outfall Free Outfall Free Outfall Free Outfall Free Outfall Free Outfall Free Outfall Free Outfall Free Outfall Free Outfall Free Outfall Free Outfall Free Outfall Free Outfall Free Outfall Notes ------------------------- Computation Messages HW & TW below Inv.El.=2100.600 HW & TW below Inv.El.=2100.600 HW & TW below Inv.El.=2100.600 HW & TW below Inv.El.=2100.600 HW & TW below Inv.El.=2100.600 HW & TW below Inv.El.=2100.600 HW & TW below Inv.El.=2100.600 H=.00; Htw=.00; Qfree=.00; H=.40; Htw=.00; Qfree=.33; H=.90; Htw=.00; Qfree=1.10; H=1.40; Htw=.00; Qfree=2.14; H=1.45; Htw=.00; Qfree=2.26; H=1.50; Htw=.00; Qfree=2.37; H=1.90; Htw=.00; Qfree=3.39; H=2.40; Htw=.00; Qfree=4.81; S/N: C21BO2AO6A82 PondPack Ver. 7.5 (786c) Compute Time: 12:27:46 Date: 07/18/2016 Type.... Individual Outlet aes Name.... BMP OUTLET Page 7.07 File.... W:\PONDPAK\16055\16055.PPW Title... BASIN OUTLET STRUCTURE RATING TABLE FOR ONE OUTLET TYPE Structure ID = 4 (Weir -Rectangular) -------------------------------------- Upstream ID = (Pond Water Surface) DNstream ID = TW (Pond Outfall) WS Elev,Device Q WS Elev. Q ft cfs -------- 2098.00 ------- .00 2098.50 .00 2099.00 .00 2099.50 .00 2099.80 .00 2100.00 .00 2100.50 .00 2100.60 .00 2101.00 .00 2101.50 .00 2102.00 .00 2102.05 .00 2102.10 .54 2102.50 14.58 2103.00 44.73 Tail Water Notes TW Elev Converge ft +/-ft Computation Messages Free Outfall HW & TW below Inv.El.=2102.050 Free Outfall HW & TW below Inv.El.=2102.050 Free Outfall HW & TW below Inv.El.=2102.050 Free Outfall HW & TW below Inv.El.=2102.050 Free Outfall HW & TW below Inv.El.=2102.OS0 Free Outfall HW & TW below Inv.El.=2102.050 Free Outfall HW & TW below Inv.El.=2102.OSO Free Outfall HW & TW below Inv.El.=2102.050 Free Outfall HW & TW below Inv.El.=2102.050 Free Outfall HW & TW below Inv.El.=2102.050 Free Outfall HW & TW below Inv.El.=2102.050 Free Outfall H=.00; Htw=.00; Qfree=.00; Free Outfall H=.OS; Htw=.00; Qfree=.54; Free Outfall H=.45; Htw=.00; Qfree=14.58; Free Outfall H=.95; Htw=.00; Qfree=44.73; S/N: C21BO2AO6A82 PondPack Ver. 7.5 (786c) Compute Time: 12:27:46 Date: 07/18/2016 Type.... Individual Outlet aes Name.... BMP OUTLET Page 7.08 File.... W:\PONDPAK\16055\16055.PPW Title... BASIN OUTLET STRUCTURE RATING TABLE FOR ONE OUTLET TYPE Structure ID = 5 (Weir -Rectangular) -------------------------------------- Upstream ID = (Pond Water Surface) DNstream ID = TW (Pond Outfall) WS Elev,Device Q ---------------- WS Elev. Q ft cfs 2098.00 2098.50 2099.00 2099.50 2099.80 2100.00 2100.50 2100.60 2101.00 2101.50 2102.00 2102.05 2102.10 2102.50 2103.00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 .00 3.92 13.23 Tail Water TW Elev Converge ft +/-ft Free Outfall Free Outfall Free Outfall Free Outfall Free Outfall Free Outfall Free Outfall Free Outfall Free Outfall Free Outfall Free Outfall Free Outfall Free Outfall Free Outfall Free Outfall Notes -------------------------- Computation Messages HW & TW below Inv.El.=2102.100 HW & TW below Inv.El.=2102.100 HW & TW below Inv.El.=2102.100 HW & TW below Inv.El.=2102.100 HW & TW below Inv.El.=2102.100 HW & TW below Inv.El.=2102.100 HW & TW below Inv.El.=2102.100 HW & TW below Inv.El.=2102.100 HW & TW below Inv.El.=2102.100 HW & TW below Inv.El.=2102.100 HW & TW below Inv.El.=2102.100 HW & TW below Inv.El.=2102.100 H=.00; Htw=.00; Qfree=.00; H=.40; Htw=.00; Qfree=3.92; H=.90; Htw=.00; Qfree=13.23; S/N: C21B02A06A82 PondPack Ver. 7.5 (786c) Compute Time: 12:27:46 Date: 07/18/2016 Type.... Composite Rating Curve ,Name.... BMP OUTLET File.... W:\PONDPAK\16055\16055.PPW Title... BASIN OUTLET STRUCTURE ***** COMPOSITE OUTFLOW SUMMARY **** WS Elev, Total Q ---------------- Elev. Q ft cfs 2098.00 .00 2098.50 .01 2099.00 .02 2099.50 .03 2099.80 .03 2100.00 .13 2100.50 .86 2100.60 .95 2101.00 1.59 2101.50 2.67 2102.00 3.97 2102.05 4.11 2102.10 4.79 2102.50 23.94 2103.00 65.02 Notes -------- Converge ------------------------- TW Elev Error ft +/-ft Contributing Structures -------- ----- -------------------------- Free Outfall 1 Free Outfall 1 Free Outfall 1 Free Outfall 1 Free Outfall 1 Free Outfall 1 +2 Free Outfall 1 +2 Free Outfall 1 +2 +3 Free Outfall 1 +2 +3 Free Outfall 1 +2 +3 Free Outfall 1 +2 +3 Free Outfall 1 +2 +3 +4 Free Outfall 1 +2 +3 +4 +5 Free Outfall 1 +2 +3 +4 +5 Free Outfall 1 +2 +3 +4 +5 Page 7.09 S/N: C21BO2AO6A82 PondPack Ver. 7.5 (786c) Compute Time: 12:27:46 Date: 07/18/2016 Bojangles 3591 Boylston Hwy Mills River, North Carolina Skimmer Basin Calculations THE ISAACS GROUP Bojangles - Mills River NC SEDIMENT CONTROL Skimmer Basin p1 DRAINAGE AREA TO BASIN= DISTURBED AREA TO BASIN= REQUIRED BASIN VOLUME= VOLUME PROVIDED= C= Q10= SPILLWAY WIDTH= h= SEDIMENT BASIN STORAGE CALCULATION: Elevation Above Ground Area (sq.ft.) Inc. Volume (cf) Ace. Volume (cf) 2098.00 0.0 0.0 0.0 2099.00 1708.0 854.0 854.0 2100.00 2624.0 2166.0 3020.0 2100.60 3200.0 1747.2 4767.2 2101.00 3595.0 1359.0 6126.2 2102.00 4624.0 4109.5 10235.7 2103.00 1 5708.0 5166.0 15401.7 SEDIMENT TRAPPING EFFICIENCY 75%Trap efficiency per Barfield and Clar equation: Surface area required at design flow (acres) = (325) Surface area required at design flow (acres) = Surface area provided at design flow (acres) = 1.24 AC. 1.24 AC. 2232 CF (DRAINAGE AC. (DISTURBED) x 1,800) 4767.2 CF (SEE BELOW) 0.8 (WEIGHTED RUNOFF COEFFICIENT) 6.97 CFS (C x 7.03 x DRAINAGE AREA) 5 FT 0.60 FT <1.0', THEREFORE O.K. peak inflow rate (cfs) 0.052 AC. 2266.5 SF 3200 SF P:Wctive Projects\Bojangles\Mills River Boylston Hwy 16055\Engineering\Calculations\16055-SKIMMER BASIN.xIs Calculate Skimmer Size Basin Volume in Cubic Feet to Drain* NC assume 3 days to drain 2,232. Cu.Ft 3 Days Skimmer Size 1.5 Inch Orifice Radius 0.5 Inch[es] Orifice Diameter 1.0 Inch[es] Estimate Volume of Basin Length width Top of water surface in feet 0 Feet VOLUME 0 Cu. Ft. Bottom dimensions in feet 0 0 1 Feet Depth in feet 0, Feet THE ISAACS GROUP Bojangles - Mills River NC SEDIMENT CONTROL Skimmer Basin #2 DRAINAGE AREA TO BASIN= DISTURBED AREA TO BASIN= REQUIRED BASIN VOLUME= VOLUME PROVIDED= C= Q10= SPILLWAY WIDTH= h= SEDIMENT BASIN STORAGE CALCULATION: Elevation Above Ground Area (sq.ft.) Inc. Volume (cf) Acc. Volume (cf) 2098.00 0.0 0.0 0.0 2099.00 1645.0 822.5 822.5 2100.00 2144.0 1894.5 2717.0 2100.60 2463.0 1382.1 4099.1 2101.00 2685.0 1029.6 5128.7 2102.00 3271.0 2978.0 8106.7 2103.00 1 3901.0 3586.0 11692.7 SEDIMENT TRAPPING EFFICIENCY 75 % Trap efficiency per Barfield and Clar equation: Surface area required at design flow (acres) = (325) Surface area required at design flow (acres) = Surface area provided at design flow (acres) = 1.22 AC. 1.22 AC. 2196 CF (DRAINAGE AC. (DISTURBED) x 1,800) 4099.1 CF (SEE BELOW) 0.8 (WEIGHTED RUNOFF COEFFICIENT) 6.86 CFS (C x 7.03 x DRAINAGE AREA) 5 FT 0.59 FT <1.0'. THEREFORE O.K. peak inflow rate (cfs) 0.0512 AC. 2229.9 SF 2463 SF PAActive Projects\Bojangles\Mills River Boylston Hwy 16055\Engineering\Calculations\16055-SKIMMER BASIN2.x1s a Calculate Skimmer Size Basin Volume in Cubic Feet Days to Drain* NC assume 3 days to drain 21196Cu.Ft 3 Days Skimmer Size WInch Orifice RadiusInch[eOrifice DiameterInch[es] Estimate Volume of Basin Length width Top of water surface in feet 0 Feet VOLUME 0 Cu. Ft. Bottom dimensions in feet 0 0 Feet Depth in feet 01 Feet Bojangles 3591 Boylston Hwy Mills River, North Carolina Storm Drainage Calculations Bojangles - 3591 Boylston Hwy - Mills River NC I. STORM DRAINAGE CALCULATIONS Refer Storm Drainage Area Exhibit Map Rational Method used for pipe sizing. A minimum time of concentration of 5 minutes has been assumed in determining a rainfall intensity of 7.24 for the 25 year storm events AREA B1 A= 0.33 acres 1= 7.24 in/hour C= 0.95 Q = (C)(1)(A) _ Q (total)= Capacity of CB B1/CB A3 AREA A5 A= 0.35 acres 1= 7.24 in/hour C= 0.95 Q = (C)(1)(A) Q (total)= Capacity of CB A4/CB A3 AREA ROOF A= 0.09 acres 1= 7.24 in/hour C= 0.95 Q = (C)(1)(A) _ Q (total)= Capacity of 8" Roof Drains AREA A4 A= 0.26 acres 1= 7.24 in/hour C= 0.95 Q = (C)(1)(A) _ Q (total)= Capacity of CS B2/FES 81 AREA A3 A= 0.16 acres 1= 7.24 in/hour C= 0.95 0 = (C)(I)(A) _ Q (total)= Capacity of 18" pipe @ Headwall Q (total)= Capacity of OSA2/JBA1 0 (total)= Capacity of EX 24" CMP Pipe Boylston Hwy 2.3 cfs 2.3 cfs 15 " RCP @ 0.60% = 5.4 cfs > 2.3 cis 2.4 cfs 2.4 cfs 15 " RCP @ 0.60% = 5.4 cfs > 2.4 cfs .6 cfs .6 cfs 8 " RCP @ 1.00% = 1.3 cfs > .6 cfs 1.8 cfs 4.2 cfs 15 " RCP @ 0.60% = 5.4 cfs > 4.2 cfs 1.1 cfs 7.6 cfs 18 " RCP @ 0.60% = 8.8 cfs > 7.6 CIS 10.7 cfs (See 100 yr Storm Pondpak Results) 18 " RCP @ 0.90%, = 10.8 cfs > 10.7 cfs 15.8 cfs 24 " CMP @ 1.67% = 15.8 cfs > 15.8 cfs Q (total)= 15.8 cfs Capacity of Proposed 18" RCP Driveway Culvert 18 " RCP @ 2.50% = 18.0 cfs > 15.8 cfs PAActive Projects\Bojangles\Mills River Boylston Hwy 16055\Engineering\Calcuiations\16055-STORM.xls CONCRETE ANCHOR BOUA—Y CALCULATION Riser Height = 7.5 ft Riser Interior Dimension = 4.0 ft SQARE Riser Wall Thickness = 6.0 in Cross Sectional Area of Riser = 25.0 sf Area of Conc. = 8.0 sf Vol. of riser = 188 cf Wt. of H2O displaced = 11700 Ibs Conc. pad thickness = 24 in Conc. pad width/length = 8.0 ft Vol. of conc. pad = 128 cf Wt. of H2O displaced = 7987 Ibs Total Wt. of H2O displaced = 19687 Unit wt. of concrete (pcf) = 150 Wt. of conc. pad (lb.) = 19200 Wt. of conc. box (lb.) = 9000 Total Wt. of conc. (lb.) = 28200 Factor of safety = wt. Conc. Pad + Riser wt. Of H2O displaced F.S.= 1.43 P:1Active Projects\Bojangles\Mills River Boylston Hwy 16055\Engineering\Calculations\16055-Riser Bouancy.xls Geotechnical Engineering Report Bojangles Restaurant- James Goode Property Mills River, Henderson County, North Carolina Recelved AUG 15 2016 Land QS ality Section Neville July 1, 2016 Terracon Project No. 86165078 RECEIVED AUG 05 L06 bENR-LAND QUALITY SrORMWATER PERIMIi'TING Prepared for: Rigsby Family Holdings Arden, North Carolina Prepared by: Terracon Consultants, Inc. Greenville, South Carolina h l July 1, 2016 Rigsby Family Holdings 142 Airport Road Suite C Arden. North Carolina 28704 Attn: Mr. Jeff Rigsby Re: Geotechnical Engineering Report Bojangles Restaurant- James Goode Property 3591 Boylston Highway Mills River, Henderson County, North Carolina Terracon Project No. 86165078 Dear Mr. Rigsby: Irerracon Terracon Consultants, Inc. (Terracon) has completed geotechnical engineering services for the above referenced project. These services were performed in general accordance with our proposal number P86167120 dated April 29, 2016. This geotechnical engineering report presents the results of the subsurface exploration and provides geotechnical recommendations concerning earthwork and the design and construction of foundations, floor slabs, and pavements for the proposed project. We appreciate the opportunity to be of service to you on this project. If you have any questions concerning this report, or if we may be of further service, please contact us. Sincerely, Terracon Consultants, Inc. h'en Liu . Staff Geotechnical Engineer �� George K. Flores, P.E. Senior Engineer Enclosures cc: 1 — Client (PDF) 1 — File Nitin Dudani, P.E. Senior Geotechnical Engineer Terracon Consultants, Inc. 12 Pointe Circle, Greenville, South Carolina 29615 P [864] 292 2901 F ]864] 292 6361 terracon.com TABLE OF CONTENTS Page EXECUTIVESUMMARY.............................................................................................................i 1.0 INTRODUCTION......................................................................................................................1 2.0 PROJECT INFORMATION......................................................................................................1 2.1 Project Description.......................................................................................................1 2.2 Site Location and Description......................................................................................2 3.0 SUBSURFACE CONDITIONS.................................................................................................2 3.1 Site Geology.................................................................................................................2 3.2 Typical Subsurface Profile............................................................................................3 3.3 Groundwater.................................................................................................................3 4.0 RECOMMENDATIONS FOR DESIGN AND CONSTRUCTION...........................................4 4.1 Geotechnical Considerations.......................................................................................4 4.2 Earthwork......................................................................................................................4 4.2.1 Site Preparation........................................................................................5 4.2.2 Material Types..........................................................................................5 4.2.3 Compaction Requirements.......................................................................6 4.2.4 Grading and Drainage..............................................................................6 4.2.5 Construction Considerations.....................................................................7 4.3 Foundations..................................................................................................................7 4.3.1 Design Recommendations........................................................................8 4.3.2 Construction Considerations.....................................................................8 4.4 Seismic Considerations................................................................................................9 4.5 Floor Slab....................................................................................................................10 4.5.1 Design Recommendations......................................................................10 4.5.2 Construction Considerations...................................................................10 4.6 Pavements..................................................................................................................11 4.6.1 Subgrade Preparation.............................................................................11 4.6.2 Design Considerations............................................................................11 4.6.3 Estimates of Minimum Pavement Thickness...........................................12 4.6.4 Pavement Drainage................................................................................13 4.6.5 Pavement Maintenance..........................................................................13 5.0 GENERAL COMMENTS........................................................................................................13 Appendix A— Field Exploration Exhibit A-1 Site Location Plan Exhibit A-2 Boring Location Plan Exhibit A-3 Field Exploration Description Exhibits A-4 to A-12 SPT Boring Logs Appendix B — Supporting Documents Exhibit B-1 General Notes Exhibit B-2 Unified Soil Classification Systems Geotechnical Engineering Report lt�rr�con Bojangles Restaurant- James Goode Property ■ Mills River, North Carolina July 1, 2016 ■ Terracon Project No. 86165078 EXECUTIVE SUMMARY This report presents the results of our geotechnical engineering services performed for the proposed Bojangles restaurant to be located 3591 Boylston Highway in Mills River, Henderson County, North Carolina. Our geotechnical engineering scope of work included the advancement of nine (9) soil test borings to depths between 7 '/2 to 25 feet below existing site grades. This report specifically addresses the recommendations for the proposed building and pavement areas. Based on the information obtained from our subsurface exploration, the following geotechnical considerations were identified: o The borings encountered approximately 2'/z to 10 feet of undocumented fill. Below the fill, borings encountered loose to medium dense silty sand/sandy silt to boring termination depths ich ranged from 7'/2 to 25 feet below ground surface. Records are not available to determine if the fill was placed in a controlled manner during grading. o The proposed building addition may be supported on shallow foundation bearing on the native residual soils, engineered fill extending to residual soils, or existing fill provided it is assessed during construction and the risks associated with the fill as discussed herein are acceptable to the owner. The shallow foundations may be designed with an allowable bearing pressure of 2,500 pounds per square foot (psf). o Groundwater was observed at depths of 6 to 22 feet in some borings for the short duration that the borings were allowed to remain open. We do not anticipate groundwater will affect construction activities based on our current understanding of the proposed development. o Borings encountered high fines content and natural moisture in the upper materials and the site is susceptible to disturbance during construction or in wet conditions. The subgrade should be graded to provide positive drainage and it should be protected by keeping it dry and preventing heavy vehicles in the footprint of the proposed construction o In accordance with 2012 International Building Code (IBC), seismic site classification for this site is D. o The native soils typically appear suitable for use as general engineered fill; however, further testing should be performed during construction to assess specific conditions at that time. Close monitoring of the construction operations discussed herein will be critical in achieving the design subgrade support. We therefore recommend that Terracon be retained to monitor this portion of the work. This summary should be used in conjunction with the entire report for design purposes. It should be recognized that details were not included or fully developed in this section, and the Responsive ■ Resourceful ■ Reliable Geotechnical Engineering Report 1%rracon Bojangles Restaurant- James Goode Property ■ Mills River, North Carolina July 1, 2016 ■ Terracon Project No. 86165078 report must be read in its entirety for a comprehensive understanding of the items contained herein. The section titled GENERAL COMMENTS should be read for an understanding of the report limitations. Responsive a Resourceful a Reliable GEOTECHNICAL ENGINEERING REPORT BOJANGLES RESTAURANT- JAMES GOODE PROPERTY 3591 BOYLSTON HIGHWAY MILLS RIVER, NORTH CAROLINA Terracon Project No. 86165078 July 1, 2016 1.0 INTRODUCTION This report presents the results of our geotechnical engineering services performed for the proposed Bojangles restaurant to be located 3591 Boylston Highway in Mills River, Henderson County, North Carolina. Our geotechnical engineering scope of work included the advancement of nine (9) soil test borings to depths between 7 '/z and 25 feet below existing site grades. The purpose of these services is to provide information and geotechnical engineering recommendations relative to: ■ subsurface soil conditions ■ earthwork ■ pavement design and construction ■ seismic considerations 2.0 PROJECT INFORMATION 2.1 Project Description ® groundwater conditions ■ foundation design and construction ■ floor slab design and construction ITEM DESCRIPTION Refer to the Site Location Plan and Boring Location Plan Site layout (Exhibits A-1 and A-2 in Appendix A) The proposed Bojangles restaurant will be a single -story building Proposed Construction approximately 3,886 square feet in the plan area. Asphalt parking for 50 vehicles and associated driveways are also planned. Building construction, The structure will be constructed of wood framed walls with twin Assumed reinforced masonry towers near the front entrance and a concrete slab -on -grade. Finished floor elevation Not provided. Maximum Wall Loads — less than 3 kips / linear foot Maximum loads, assumed Maximum Uniform Floor Slab Load — less than 100 psf Grading in building and We presume that the site will require minimal grading, on the order parking area of less than 2 feet of cut and fill. Cut and fill slopes None noted. Responsive ■ Resourceful ■ Reliable Geotechnical Engineering Report l��rr�con Bojangles Restaurant- James Goode Property ■ Mills River, North Carolina July 1, 2016 ■ Terracon Project No. 86165078 ITEM I DESCRIPTION Design equivalent 18 kips single axle loads (ESAL's): Traffic loading, assumed On -site Car Parking = <10,000 On -site Truck and Drive Areas = <30,000 2.2 Site Location and Description ITEM DESCRIPTION Location The site is located 3591 Boylston Highway in Mills River, Henderson County, North Carolina. Existing Improvements The site is currently developed as an Auto Store with associated parking lot and drives. Current Ground Cover Gravel, and manicured grass. Existing topography Relatively flat. 3.0 SUBSURFACE CONDITIONS 3.1 Site Geology The project site is located within the Blue ridge Physiographic Province of North Carolina, an area underlain by ancient igneous and metamorphic rocks. Residual soils in this area are the product of in -place chemical weathering of rock. The typical residual soil profile consists of clayey soils near the surface where soil weathering is more advanced, underlain by sandy silts and silty sands that generally become harder with depth to the top of parent bedrock. The boundary between soil and rock is not sharply defined due to variations in weathering and the presence of soft rock. The transition zone is locally termed as "partially weathered rock." Partially weathered rock is defined for engineering purposes as residual material that can be drilled with soil boring methods, but exhibits standard penetration test (SPT) N-values exceeding 100 blows per foot (bpf). Partially weathered rock occurs at irregular depths due to variations in degree of weathering and variations in the material composition of the rock. Responsive ■ Resourceful ■ Reliable 2 Geotechnical Engineering Report l�erracon Bojangles Restaurant- James Goode Property ■ Mills River, North Carolina July 1, 2016 ■ Terracon Project No. 86165078 3.2 Typical Subsurface Profile Based on the results of the SPT borings, subsurface conditions on the project site can be generalized as follows: Description Approximate Depth to Bottom of Stratum (feet) Material Encountered SPT N value Stratum 1 3 to 10 Fill —stiff, sandy silt, and 6 to 14 medium stiff, fat clay Residual — very stiff , sandy silt, Stratum 2 7'/z to 25 and loose to medium dense 6 to 21 silty! Specific conditions encountered at each boring location are indicated on the individual boring logs. Stratification boundaries on the boring logs represent the approximate location of changes in soil types; in -situ, the transition between materials may be gradual. Details for each of the borings can be found on the boring logs included in Appendix A of this report. 3.3 Groundwater The boreholes were observed while drilling and after completion for the presence and level of groundwater. Groundwater was observed between 6 and 22 feet in some borings while drilling, and for the short duration (4 hours or less) that the borings were allowed to remain open. Due to the low permeability of the soils encountered in the borings, a relatively long time may be necessary for a groundwater level to develop and stabilize in a borehole in these materials. Longer observations in piezometers or observation wells sealed from the influence of surface water are often required to define groundwater levels in materials of this type. Groundwater level fluctuations occur due to seasonal variations in the amount of rainfall, runoff and other factors not evident at the time the borings were performed. In addition, perched water could develop in sand seams and layers overlying lower permeability clay soils following periods of heavy or prolonged precipitation. Therefore, groundwater levels during construction or at other times in the life of the structure may be higher or lower than the levels indicated on the boring logs. The possibility of groundwater level fluctuations should be considered when developing the design and construction plans for the project. Responsive ■ Resourceful ■ Reliable 3 Geotechnical Engineering Report l��rracon Bojangles Restaurant- James Goode Property ■ Mills River, North Carolina July 1, 2016 s Terracon Project No. 86165078 4.0 RECOMMENDATIONS FOR DESIGN AND CONSTRUCTION 4.1 Geotechnical Considerations Borings for the proposed Bojangles' Building encountered undocumented fill material to depths of 3 to 10 feet below existing grade. Residual soils were encountered below the fill until the boring termination depths. Support of pavements, footings and floor slabs on or above the undocumented fill soils is discussed in this report. However, even with the recommended construction testing services, there is an inherent risk for the owner that compressible fill or unsuitable material within or buried by the undocumented fill will not be discovered. This risk of unforeseen conditions cannot be eliminated without completely removing the existing fill, but can be reduced by performing additional testing and evaluation. Simple testing such as closely spaced hand auger borings in the foundation excavations can be performed to further assess the undocumented fill. However, there are several geotechnical recommendations which must be performed during the construction of the building. These include the following: o Perform proofrolling in the building footprint in accordance with section 4.2 of this report. o Based on our visual observation of the soil samples we believe that the onsite soils will be suitable for use as engineered fill; however, further testing is recommended prior to use. o Due to the presence of fines in conjunction with high natural moisture in the upper materials, the site is susceptible to disturbance during construction or in wet conditions. Subgrade should be protected by keeping it dry and preventing heavy vehicles in the footprint of the proposed construction. Geotechnical engineering recommendations for foundation systems and other earth connected phases of the project are outlined below. The recommendations contained in this report are based upon the results of data presented herein, engineering analyses, and our current understanding of the proposed project. EWE*- i17,"7 The following presents recommendations for site and subgrade preparation, excavation, and placement of engineered fills on the project. The recommendations presented for design and construction of earth supported elements including foundations, slabs and pavements are contingent upon following the recommendations outlined in this section. Responsive o Resourceful o Reliable 4 Geotechnical Engineering Report l��rracon Bojangles Restaurant- James Goode Property ■ Mills River, North Carolina July 1, 2016 ■ Terracon Project No. 86165078 Earthwork on the project should be observed and evaluated by Terracon. The evaluation of earthwork should include observation and testing during placement of engineered fill, subgrade preparation, foundation bearing soils, and other geotechnical conditions exposed during the construction of the project. 4.2.1 Site Preparation We anticipate construction will start by demolishing the existing building and stripping the grass. This activity should be performed with minimal disturbance to the subgrade soils. The near surface sandy silts encountered in the borings will be sensitive to disturbance from construction activity and water seepage. If precipitation occurs prior to or during construction, the near -surface silty soils could increase in moisture content and become more susceptible to disturbance. Construction activity should be monitored, and should be curtailed if the construction activity is causing subgrade disturbance. Proofrolling should be performed with heavy rubber tired construction equipment such as a fully loaded tandem -axle dump truck. A geotechnical engineer or his representative should observe proofrolling to help locate unstable subgrade materials. Proofrolling should be performed after a suitable period of dry weather to avoid degrading an otherwise acceptable subgrade and to reduce the amount of undercutting/ remedial work required. Unstable materials located should be stabilized as directed by the engineer based on conditions observed during construction. Undercut and replacement and densification in place are typical remediation methods. 4.2.2 Material Types Engineered fill should meet the following material property requirements: Fill Type' 1 USCS Classification Acceptable Location for Placement Imported sandy ML, CL or SM silts/clays and silty (LL<45) All locations and elevations sands Granular soils SC, SW, SP, GW, GP All locations and elevations 1. Controlled, compacted fill should consist of approved materials that are free of organic matter and debris. Frozen material should not be used, and fill should not be placed on a frozen subgrade. A sample of each material type should be submitted to the geotechnical engineer for evaluation. Responsive o Resourceful o Reliable 5 Geotechnical Engineering Report l��rracon Bojangles Restaurant- James Goode Property ■ Mills River, North Carolina July 1, 2016 ■ Terracon Project No. 86165078 4.2.3 Compaction Requirements Recommended compaction and moisture content criteria for engineered fill materials are as follows: Material Type and Location Per the Standard Proctor Test (ASTM D 698) Minimum Compaction Requirement (%) Range of Moisture Contents for Compaction Minimum Maximum Acceptable soil or approved imported fill soils Beneath foundations and slabs 95 -2% +3% Beneath pavements 95 -2% +3% 12 inches directly below pavements 98 -2% +3% Per the Modified Proctor Test (ASTM D 1557) Aggregate base (beneath slabs) 95 -3% +3% Aggregate base (beneath pavements) 98 -3% +3% Engineered fill materials should be placed in horizontal, loose lifts not exceeding 9 inches in thickness and should be thoroughly compacted. Where light compaction equipment is used, as is customary within a few feet of retaining walls and in utility trenches, the lift thickness may need to be reduced to achieve the desired degree of compaction. Soils removed which will be used as engineered fill should be protected to aid in preventing an increase in moisture content due to rain. 4.2.4 Grading and Drainage Effective drainage should be provided during construction and maintained throughout the life of the development to reduce moisture gains in the subgrade materials. Surface water drainage should be controlled to prevent undermining of fill slopes and structures during and after construction. Gutters and downspouts that drain water a minimum of 10 feet beyond the footprint of the proposed structures are recommended. This can be accomplished through the use of splash - blocks, downspout extensions, and flexible pipes that are designed to attach to the end of the downspout. Flexible pipe should only be used if it is daylighted in such a manner that it gravity - drains collected water. Splash -blocks should also be considered below hose bibs and water spigots. It is recommended that all exposed earth slopes be seeded to provide protection against erosion as soon as possible after completion. Seeded slopes should be protected until the vegetation is established. Responsive ■ Resourceful ■ Reliable 6 Geotechnical Engineering Report l�err�con Bojangles Restaurant- James Goode Property ■ Mills River, North Carolina July 1, 2016 ■ Terracon Project No. 86165078 4.2.5 Construction Considerations Although the exposed subgrade is anticipated to be relatively stable upon initial exposure, unstable subgrade conditions could develop during general construction operations, particularly if the soils are exposed to weather, wetted and/or subjected to repetitive construction traffic. The use of light construction equipment would aid in reducing subgrade disturbance. Should unstable subgrade conditions develop, stabilization measures will need to be employed. Upon completion of filling and grading, care should be taken to maintain the subgrade moisture content prior to construction of floor slabs and pavements. Construction traffic over the completed subgrade should be avoided to the extent practical. If the subgrade should become frozen, desiccated, saturated, or disturbed, the affected material should be removed or these materials should be scarified, moisture conditioned, and recompacted prior to floor slab and pavement construction. Temporary excavations will probably be required during grading operations. The grading contractor, by his contract, is usually responsible for designing and constructing stable, temporary excavations and should shore, slope or bench the sides of the excavations as required, to maintain stability of both the excavation sides and bottom. All excavations should comply with applicable local, state and federal safety regulations, including the current OSHA Excavation and Trench Safety Standards. The geotechnical engineer should be retained during the construction phase of the project to observe earthwork and to perform necessary tests and observations during subgrade preparation; proof -rolling; placement and compaction of controlled compacted fills; backfilling of excavations into the completed subgrade, and just prior to construction of building floor slabs. 4.3 Foundations In our opinion, the proposed building can be supported by a shallow foundation system bearing on residual soils, engineered fill extending to residual soils, or existing fill if it is assessed during construction and the risks associated with the fill as discussed herein are acceptable to the owner. Design recommendations for shallow foundations for the proposed structures are presented in the following paragraphs. Responsive ■ Resourceful ■ Reliable 7 Geotechnical Engineering Report l��rracon Bojangles Restaurant- James Goode Property ■ Mills River, North Carolina July 1, 2016 ■ Terracon Project No. 86165078 4.3.1 Design Recommendations DESCRIPTION Column Wall Net allowable bearing pressure 2,500 psf I 2,500 psf Minimum dimensions 24 inches 16 inches Minimum embedment below finished grade for 18 inches 18 inches frost protection' Approximate total settlement 3 <1 inch <1 inch <3/< inch between Estimated differential settlement' <'/< inch over 40 feet columns Ultimate coefficient of sliding friction I 0.35 1. The recommended net allowable bearing pressure is the pressure in excess of the minimum surrounding overburden pressure at the footing base elevation. Assumes any unsuitable fill or soft soils, if encountered, will be undercut and replaced with engineered fill. 2. And to reduce the effects of seasonal moisture variations in the subgrade soils. For perimeter footings and footings beneath unheated areas. 3. The foundation settlement will depend upon the variations within the subsurface soil profile, the structural loading conditions, the embedment depth of the footings, the thickness of compacted fill, and the quality of the earthwork operations. The allowable foundation bearing pressures apply to dead loads plus design live load conditions. The design bearing pressure may be increased by one-third when considering total loads that include wind or seismic conditions. The weight of the foundation concrete below grade may be neglected in dead load computations. Interior footings should bear a minimum of 12 inches below finished grade. Finished grade is the lowest adjacent grade for perimeter footings and floor level for interior footings. Foundations and masonry walls should be reinforced as necessary to reduce the potential for distress caused by differential foundation movement. The use of joints at openings or other discontinuities in masonry walls is recommended. Foundation excavations should be observed and evaluated by the geotechnical engineer. If the soil conditions encountered differ from those presented in this report, supplemental recommendations will be required. 4.3.2 Construction Considerations The base of all foundation excavations should be free of water and loose soil prior to placing concrete. Concrete should be placed soon after excavating to reduce bearing soil disturbance. Should the soils at bearing level become excessively dry, disturbed or saturated, or frozen, the affected soil should be removed prior to placing concrete. We recommend using a lean concrete mud -mat over the bearing soils if the excavations must remain open for an extended period of time. Responsive a Resourceful o Reliable 8 Geotechnical Engineering Report Merriman Restaurant- James Goode Property a Mills River, North Carolina July 1, 2016 a Terracon Project No. 86165078 If unsuitable bearing soils are encountered in footing excavations, the excavations should be extended deeper to suitable soils and the footings could bear directly on these soils at the lower level or on lean concrete backfill placed in the excavations. The footings could also bear on properly compacted backfill extending down to the suitable soils. Overexcavation for compacted backfill placement below footings should extend laterally beyond all edges of the footings at least 8 inches per foot of overexcavation depth below footing base elevation. The overexcavation should then be backfilled up to the footing base elevation with well -graded granular material placed in lifts of 9 inches or less in loose thickness and compacted to at least 95 percent of the material's maximum dry density (ASTM D 698). The overexcavation and backfill procedure is illustrated in the following figures for lean concrete or granular backfill. DesigDesign nFwbnq Level LEAN Recommantleo : CONCRETE Excavation Level a O Design I ,aWD t. Fooling Level — _ COMPACTED STRUCTURAL Recommended FILL Ercuvngon Level Lean Concrete Backfill Overexcavation I Backfill NOTE: Excavations in sketches shown "nice] for convenience. Excavations should be sloped as necessary for safety. 4.4 Seismic Considerations Code Used Site Classification 2012 International Building Code (IBC) t D 2 1. In general accordance with the 2012 International Building Code, Table 1613.3.2. 2. The 2012 International Building Code (IBC) requires a site soil profile determination extending a depth of 100 feet for seismic site classification. The current scope requested does not include the required 100 foot soil profile determination. Borings for the building extended to a maximum depth of approximately 25 feet and this seismic site class definition considers that medium dense silty sands continues below the maximum depth of the subsurface exploration. Deeper exploration could be performed to confirm the conditions below the current depth of exploration. Alternatively, a geophysical exploration could be utilized in order to attempt to justify a higher seismic site class. Responsive o Resourceful o Reliable 9 Geotechnical Engineering Report l��rracon Bojangles Restaurant- James Goode Property ■ Mills River, North Carolina July 1, 2016 ■ Terracon Project No. 86165078 4.5 Floor Slab 4.5.1 Design Recommendations DESCRIPTION I VALUE Minimum 18 inches of approved on -site or imported soils placed Floor slab support and compacted in accordance with section 4.2 Earthwork of this Aggregate base course/capillary 4-inch compacted layer of free draining, granular subbase break Z material 1. Floor slabs should be structurally independent of any building footings or walls to reduce the possibility of floor slab cracking caused by differential movements between the slab and foundation. Narrower, turned -down slab -on -grade foundations may be utilized at the approval of the structural engineer. The slabs should be appropriately reinforced to support the proposed loads. 2. We recommend subgrades be maintained at the proper moisture condition until floor slabs are constructed. If the subgrade should become desiccated or saturated (wetted) prior to construction of floor slabs, the affected material should be removed or the materials scarified, moisture conditioned and recompacted. Upon completion of grading operations in the building areas, care should be taken to maintain the recommended subgrade moisture content and density prior to construction of the building floor slabs. A subgrade prepared and tested as recommended in this report should provide adequate support for lightly loaded floor slabs. Where appropriate, saw -cut control joints should be placed in the slab to help control the location and extent of cracking. For additional recommendations refer to the ACI Design Manual. The use of a vapor retarder or barrier should be considered beneath concrete slabs on grade that will be covered with wood, tile, carpet or other moisture sensitive or impervious coverings, or when the slab will support equipment sensitive to moisture. When conditions warrant the use of a vapor retarder, the slab designer and slab contractor should refer to ACI 302 and ACI 360 for procedures and cautions regarding the use and placement of a vapor retarder/barrier. 4.5.2 Construction Considerations On most project sites, the site grading is generally accomplished early in the construction phase. However as construction proceeds, the subgrade may be disturbed due to utility excavations, construction traffic, desiccation, rainfall, etc. As a result, the floor slab subgrade may not be suitable for placement of base rock and concrete and corrective action may be required. We recommend the area underlying the floor slab be rough graded and then thoroughly proofrolled with a loaded tandem axle dump truck prior to final grading and placement of base rock. Particular attention should be paid to high traffic areas that were rutted and disturbed earlier and to areas where backfilled trenches are located. Areas where unsuitable conditions are Responsive ■ Resourceful ■ Reliable 10 Geotechnical Engineering Report l�erracon Bojangles Restaurant- James Goode Property ■ Mills River, North Carolina July 1, 2016 ■ Terracon Project No. 86165078 located should be repaired by removing and replacing the affected material with properly compacted fill. All floor slab subgrade areas should be moisture conditioned and properly compacted to the recommendations in this report immediately prior to placement of the base rock and concrete. 4.6 Pavements 4.6.1 Subgrade Preparation On most project sites, the site grading is accomplished relatively early in the construction phase. However, as construction proceeds, excavations are made into these areas, rainfall and surface water saturates some areas, heavy traffic from concrete trucks and other delivery vehicles disturbs the subgrade and many surface irregularities are filled in with loose soils to improve trafficability temporarily. As a result, the pavement subgrades, prepared early in the project should be carefully evaluated as the time for pavement construction approaches. We recommend the moisture content and density of the top 12 inches of the subgrade be evaluated and the pavement subgrades be proofrolled within two days prior to commencement of actual paving operations. Areas not in compliance with the required ranges of moisture or density should be moisture conditioned and recompacted. Particular attention should be paid to high traffic areas that were rutted and disturbed earlier and to areas where backfilled trenches are located. Areas where unsuitable conditions are located should be repaired by removing and replacing the materials with properly compacted fills. If a significant precipitation event occurs after the evaluation or if the surface becomes disturbed, the subgrade should be reviewed by qualified personnel immediately prior to paving. The subgrade should be in its finished form at the time of the final review. 4.6.2 Design Considerations Traffic patterns and anticipated loading conditions were not available at the time that this report was prepared. However, we anticipate that traffic loads will be produced primarily by automobile traffic and occasional delivery and trash removal trucks. The thickness of pavements subjected to heavy truck traffic should be determined using expected traffic volumes, vehicle types, and vehicle loads and should be in accordance with local, city or county ordinances. Pavement thickness can be determined using AASHTO, Asphalt Institute and/or other methods if specific wheel loads, axle configurations, frequencies, and desired pavement life are provided. Pavement performance is affected by its environmental conditions. The civil engineer should consider the following recommendations in the design and layout of pavements: o Final grade adjacent to parking lots and drives should slope down from pavement edges at a minimum 2%; o The subgrade and the pavement surface should have a minimum '/ inch per foot slope to promote effective surface drainage; Responsive ■ Resourceful ■ Reliable 11 Geotechnical Engineering Report lrerr�con Bojangles Restaurant- James Goode Property ■ Mills River, North Carolina July 1, 2016 ■ Terracon Project No. 86165078 ■ Pavement drainage should be installed in surrounding areas anticipated for frequent wetting; ■ Joint sealant should be installed immediately; ■ To reduce moisture migration to subgrade soils, all landscaped areas in or adjacent to pavements should be sealed; ■ Compacted, low permeability backfill should be placed against the exterior side of curb and gutter; and, ■ Curb, gutter and/or sidewalk should be placed directly on low permeability subgrade soils rather than on unbound granular base course materials. 4.6.3 Estimates of Minimum Pavement Thickness As a minimum, we recommend the following typical pavement section be considered. Typical Pavement Section Thickness (inches) Asphalt Asphalt Graded Portland Concrete Concrete Aggregate Total Traffic Area Alternative Cement Surface Binder Base Thickness Concrete i Course Course (GAB) Light Duty PCC -- 5 4 9 (Car Parking) AC 2 -- 6 8 Heavy Duty PCC -- -- 6 4 10 (Truck/ Bus Parking and AC 1'/� 1 /z ' 8 11 Driveways) Trash Container Pad and Delivery PCC -- -- 6'/2 4 10'/2 Pad 2 1. 4,000 psi at 28 days with proper entrained air. PCC pavements are recommended for trash container pads and in any other areas subjected to heavy wheel loads and/or turning traffic. 2. The trash container pad should be large enough to support the container and the tipping axle of the collection truck. The aggregate base course (ABC) should be compacted to a minimum of 98 percent of the material's modified Proctor (ASTM D-1557, Method C) maximum dry density. Where base course thickness exceeds 6 inches, the material should be placed and compacted in two or more lifts of equal thickness. Asphalt concrete aggregates and base course materials should conform to the applicable North Carolina Department of Transportation (NCDOT) "Standard Specifications for Roads and Structures", Sections for Aggregate Base Course material, Hot Mix Asphalt Base Course, and Surface Course. Responsive ■ Resourceful ■ Reliable 12 Geotechnical Engineering Report l��rraeon Bojangles Restaurant- James Goode Property o Mills River, North Carolina July 1, 2016 o Terracon Project No. 86165078 We recommend a portland cement concrete (PCC) pavement be utilized in entrance and exit sections, dumpster pads, or other areas where extensive wheel maneuvering are expected. Adequate reinforcement and number of longitudinal and transverse control joints should be placed in the rigid pavement in accordance with ACI requirements. The joints should be sealed as soon as possible (in accordance with sealant manufacturer's instructions) to minimize infiltration of water into the soil. 4.6.4 Pavement Drainage Pavements should be sloped to provide rapid drainage of surface water. Water allowed to pond on or adjacent to the pavements could saturate the subgrade and contribute to premature pavement deterioration. In addition, the pavement subgrade should be graded to provide positive drainage within the granular base section. We recommend drainage be included at the bottom of the Aggregate Base Course (ABC) layer at the storm structures to aid in removing water that may enter this layer. Drainage could consist of small diameter weep holes installed around the perimeter of the storm structures. The weep holes should be installed at the elevation of the ABC and soil interface. The weep holes should be covered with No. 57 stone which is encompassed in Mirafi 140 NL or approved equivalent which will aid in reducing the amount of fines entering the storm system. 4.6.5 Pavement Maintenance The pavement sections provided in this report represent minimum recommended thicknesses and, as such, periodic maintenance should be anticipated. Preventive maintenance should be planned and provided for through an on -going pavement management program to slow the rate of pavement deterioration, and to preserve the pavement investment. Preventive maintenance consists of both localized maintenance (e.g., crack and joint sealing and patching) and global maintenance (e.g., surface sealing). Prior to implementing any maintenance, additional engineering observation is recommended to determine the type and extent of preventive maintenance. Even with periodic maintenance, some movements and related cracking may still occur and repairs may be required. 5.0 GENERAL COMMENTS Terracon should be retained to review the final design plans and specifications so comments can be made regarding interpretation and implementation of our geotechnical recommendations in the design and specifications. Terracon also should be retained to provide observation and testing services during grading, excavation, foundation construction and other earth -related construction phases of the project. The analysis and recommendations presented in this report are based upon the data obtained from the borings performed at the indicated locations and from other information discussed in this report. This report does not reflect variations that may occur between borings, across the Responsive o Resourceful o Reliable 13 Geotechnical Engineering Report l��rracon Bojangles Restaurant- James Goode Property ■ Mills River, North Carolina July 1, 2016 ■ Terracon Project No. 86165078 site, or due to the modifying effects of construction or weather. The nature and extent of such variations may not become evident until during or after construction. If variations appear, we should be immediately notified so that further evaluation and supplemental recommendations can be provided. The scope of services for this project does not include either specifically or by implication any environmental or biological (e.g., mold, fungi, bacteria) assessment of the site or identification or prevention of pollutants, hazardous materials or conditions. If the owner is concerned about the potential for such contamination or pollution, other studies should be undertaken. This report has been prepared for the exclusive use of our client for specific application to the project discussed and has been prepared in accordance with generally accepted geotechnical engineering practices. No warranties, either express or implied, are intended or made. Site safety, excavation support, and dewatering requirements are the responsibility of others. In the event that changes in the nature, design, or location of the project as outlined in this report are planned, the conclusions and recommendations contained in this report shall not be considered valid unless Terracon reviews the changes and either verifies or modifies the conclusions of this report in writing. Responsive a Resourceful u Reliable 14 0 1 o A 1 _ 10 vc �ij�, � � •„ 1T! "',�a .Sy�wi��. .+,tea �� za *l • f 1 � rL � I I - �- Goode earth DIAGRAM IS FOR GENERAL LOCATION ONLY, AND IS NOT INTENDED FOR CONSTRUCTION PURPOSES Protect Nanager. Project No. ND 86165078 Drawn oy Sot ZL .T CNecFse Oy File Name: ND ApprSveebp. Dale ND 6/30/16 lrerracon BORING LOCATION PLAN Exhibit Bojangles in Mills River Ccmulting Engineers&Scientists 3591 Boylston Highway A-2 72 Mills River, North Carolina PH (a6<1393-2W1 FA%.(a5<)MB 61 Geotechnical Engineering Report l�err�con Bojangles Restaurant- James Goode Property ■ Mills River, North Carolina July 1, 2016 ■ Terracon Project No. 86165078 Field Exploration Description The subsurface exploration consisted of drilling and sampling 7 SPT borings (B-1 through B-9) at the site to depths ranging from about 7 '/2 to 25 feet below existing grade. All borings were located in the field by a Terracon engineer based on the proposed structure locations provided by Client. The borings were laid out in the field using GPS coordinates obtained by overlaying the site map on Google Earth TM software. The boring depths were measured from the existing ground surface at the time of our field activities. The locations of the borings should be considered accurate only to the degree implied by the means and methods used to define them. The borings were drilled using a truck -mounted rotary drill rig using continuous flight hollow -stem augers to advance the boreholes. Samples of the soil encountered in the borings were obtained using the split -barrel sampling procedures. In the split -barrel sampling procedure, the number of blows required to advance a standard 2-inch O.D. split -barrel sampler the last 12 inches of the typical total 18-inch penetration by means of a 140-pound conventional safety hammer with a free fall of 30 inches, is the standard penetration resistance value (SPT-N). This value is used to estimate the in -situ relative density of cohesionless soils and consistency of cohesive soils. An automatic SPT hammer was used to advance the split -barrel sampler in the borings performed on this site. A greater efficiency is typically achieved with the automatic hammer compared to the conventional safety hammer operated with a cathead and rope. Published correlations between the SPT values and soil properties are based on the lower efficiency cathead and rope method. This higher efficiency affects the standard penetration resistance blow count (N) value by increasing the penetration per hammer blow over what would be obtained using the cathead and rope method. The effect of the automatic hammer's efficiency has been considered in the interpretation and analysis of the subsurface information for this report. The samples were tagged for identification, sealed to reduce moisture loss, and taken to our laboratory for further visual examination and classification. Information provided on the boring logs attached to this report includes soil descriptions, consistency evaluations, boring depths, sampling intervals, and groundwater conditions. The borings were backfilled with auger cuttings prior to the drill crew leaving the site. A field log of each boring was prepared by the drill crew. These logs included visual classifications of the materials encountered during drilling as well as the driller's interpretation of the subsurface conditions between samples. Final boring logs included with this report represent the engineers interpretation of the field logs and include modifications based on laboratory observation and tests of the sample. Responsive ■ Resourceful ■ Reliable Exhibit A-3 BORING LOG NO. B-1 Page 1 of 1 PROJECT: Bojangles in Mills River CLIENT: Rigsby Family Holdings, LLC Arden, NC SITE: 3591 Boylston Highway Mills River, North Carolina o LOCATION See ExhibitA-2 JZ W a r. o O wF to J ter = Q W F to aF to fin in a d caw ar 3 O to 3 O Q N LL O DEPTH FILL - SANDY SILT (MU, with roots, dark brown, stiff 125 4-4-5 14 N=9 RESIDUAL - SANDY SILT IMLI, light brown to gray, very stiff _ 9-8-8 29 50 5 N=16 SILTY SAND (5M), fine grained, light gray, loose 2-3-3 25 N=6 8.5 SILTY SAND (SM), with gravel, orangish brown, loose to medium dense _ 3-4-3 N=7 1 — 3-6-8 1.'15.0 15 N=14 Auger Refusal at 15 Feet Stratification lines are approximate. In -situ, the transition may be gradual. Hammer Type: Automatic Advancement Method: See Exhibit A-3 for description of field procedures. Notes: 21/4' Hollow Stem Auger See Appendix B fix description of laboratory procedures and additional data (if any). See Appendix C for explanation of symbols and Abandonment Method: Beings backfilled with soft cuttings upon completion. abbreviations. WATER LEVEL OBSERVATIONS 1 rerracon 72 Ponta Or Boring Started: 6/29/2016 spring Completed: 6/29/2016 While drilling Drill Rig: Geoprobe 7822 DT Driller B, Burnett Greenylle, SC Project No.: 86165078 Exhibit: AA BORING LOG NO. B-2 Page 1 of 1 PROJECT: Bojangles in Mills River CLIENT: Rigsby Family Holdings, LLC Arden, NC SITE: 3591 Boylston Highway Mills River, North Carolina 00 LOCATION See PJCrlblt Ara ? o d U LL '~ N N WF IGF 2 Q W FJ WZ O Qsa Q LL� 30 3 O m DEPTH FILL - SANDY SILT (MLI, with roots, dark brown to light brown, stiff 6-5-5 N=10 175 4-4-5 N=9 5 — X 6-5-5 N=10 FILL - FAT CLAY WITH SAND (CHI, light gray, medium stiff 1100 — 224 1 X N=6 RESIDUAL - SILTY SAND (SMI, fine to medium grained, light brown to gray, medium dense 3-4-7 N=11 15 — tes SILTY SAND ISM), fine grained, yellowish brown, medium dense _ 11-8-11 20 o 2 N=19 No Recovery — 889 25.0 25 N=17 Boring Terminated at 25 Feet Stratification lines are approximate. In -situ, the transition may be gradual Hammer Type: Automatic Advancement Method See Exhibit A-3 for description of field procedures. Notes'. 2 1/4" Hollow Stem Auger See Appendix B for description of laboratory procedures and additional data (if any). See Appendix C for explanation of symbols and Abandonment Method: Borings backfilletl with soil cuttings upon completion. abbreviations. WATER LEVEL OBSERVATIONS lrerracon 72 Pointe Cir Boring Started: 61292016 Boring Completed: 61292016 At completion ofdrilling Drill Rig: Geoprobe 7822 DT Dnllec B. dome" Greenville, SC Project No.: 86165078 Exl ibit: A-5 BORING LOG NO. B-3 Page 1 of 1 PROJECT: Bojangles in Mills River CLIENT: Rigsby Family Holdings, LLC Arden, NC SITE: 3591 Boylston Highway Mills River, North Carolina O LOCATION See Exhibit A-2 Z a H e o U - O JQ F W WZ 0 3 to LL U DEPTH O N FILL - SANDY SILT (MIL), with roots, brown to gray, stiff 5-5-5 25 N=10 6-5-7 21 N=12 5 — 6-6-8 20 N=14 8,5 RESIDUAL - SILTY SAND (Still, fine grained, light brown to light gray, loose _ 2-4-3 log 1 N=7 SILTY SAND ISMI, fine to medium grained, orangish brown, loose — 3-3-3 15,0 r 15 N=6 SILTY SAND ISM), fine grained, grayish brown, medium dense 9-10-11 20.0 20 N=21 SILTY SAND (Still fine grained, yellowish brown, medium dense 11-8-8 25,0 25 N=16 Boring Terminated at 25 Feet Stratification lines are approximate, In -situ, the transition may he gradual. Hammer Type: Automatic Adyanoement Method. See Exhibit A-3 for description of field procedures. Notes 2 1/4" Hollow Stem Auger See Appendix B for descripton of laboratory procedures and additional data (if any). See Appendix C for explanation of symbols and Abandonment Method. Borings backfilled with soil cuttings upon completion. abbreNations. WATER LEVEL OBSERVATIONS 1 rerracon Boring Started: 6/29/2016 Boring Completed. 6/29/2016 While drilling Drill Rig: Geoprobe 7822 DT Driller B. Burnett �2 Rdnte Cir Greentille, Z Project No: 66165078 SPhlbll: A$ BORING LOG NO. B-4 Page 1 of 1 PROJECT: Bojangles in Mills River CLIENT: Rigsby Family Holdings, LLC Arden, NC SITE: 3591 Boylston Highway Mills River, North Carolina 0 O LOCATION See Exhlblt A-2 y w 0 w a = J¢ W W FJ WZ x H R'% J ❑N QW 30 o am 3 ¢ W, LL U DEPTH U m FILL - SANDY SILT f MLI, with roots, dark brown to light brown, stiff 4-5-7 N=12 5-7-7 50 5 N=14 RESIDUAL - SILTY SAND ISM), fine grained, orangish brown, loose 7-4-3 z5 N=7 Boring Terminated at 7.5 Feet Stratification lines are approximate .In -situ, the transition may be gradual. Hammer Type: Automatic Advancement Method: See Extlblt A-3 for description of field procedures. Notes. 2 1l4- Hollow Stem Auger See Appendix B for description of laboratory procedures and additional data (if any). See Appendix C for explanation of symbols and Abandonment Method Borings backfilled with soil cuttings upon completion. abbrsWations. WATER LEVEL OBSERVATIONS 1 rerracon 72 Pointe Cir Boring Started: 6292016 Boxing Completed: 612912016 No free water observed Drill Rig: Geoprobe 7822 DT Dnllec B. Bumen GreenNlle, SC Project No.: 86165078 Exhibit: A BORING LOG NO. B-5 Page 1 of 1 PROJECT: Bojangles in Mills River CLIENT: Rigsby Family Holdings, LLC Arden, NC SITE: 3591 Boylston Highway Mills River, North Carolina o LOCATION See Ehibit A-2 w z w u J O yy r U LL 2 Jr= Q F W wlw- F J ,Yr W z az o am w� 30 3 a W U DEPTH O w FILL - SANDY SILT (MU, with roots, dark brown to light brown, stiff 130 4-7-6 12 N=13 RESIDUAL - SILTY SAND (SM), fine grained, light brown to gray, loose to medium dense 4-4-4 13 N=8 5 — 4-7-6 22 `.. 75 N=13 Boring Terminated at 7.5 Feet Stratification lines areapprodmate.In-situ, thetransition maybegradual. Hammer Type: Automatic Advancoment Method Sae FJQribit A-3 for description of field procedures. Notes: 2 114" Hollow Stem Auger See Appendix B for description of laboratory procedures and additional data (if any). See Appendix C for explanation of symbols and Abandonment Method: Borings backfille i with soil cuttings upon completion, abbredations. WATER LEVEL OBSERVATIONS l��rracon 72 Pointe Or Boring Staded: 6/29/2016 Boring Completed: 6/29I2016 No tree wafer observed Drill Rig: Geoprobe 7822 DT Dnllec B. Bumett Greendlle, SC Project No.: 86165078 E#ribit: A-8 to 0 z u 0 rc a E 0 0 W 0 a z 0 0 0 0 ,Y O W F a 0 a a w N 0 BORING LOG NO. B-6 Page 1 of 1 PROJECT: Bojangles in Mills River CLIENT: Rigsby Family Holdings, LLC Arden, NC SITE: 3591 Boylston Highway Mills River, North Carolina a O LOCATION See Exhibit A-2 _ °' wz to n H .-. e U 2 ouF a '> W w� W z aW Q. 9 H w H W Q. OD w W z 00 a m 30 Q T oU DEP W FILL - SANDY SILT WILL with roots, dark brown, stiff 6-7-5 N=12 30 RESIDUAL - SILTY SAND ISM1, fine grained, light brown to reddish orange, loose 3-4-6 N=10 5 — — 344 ''.'. 7.5 N_6 Boring Terminated at 7.5 Feet Stratification lines are approximate. In -situ, the transition may be gradual. Hammer Type: Automatic Adyancemenl Method: See Exhibit A-3 for description of field procedures. Notes'. 2 1/4' Hollow Stem Auger See Appendix B for description of laboratory procedures and additional data (if any). See Appendix C for explanation of symbols and Abandonment Method: Borings backfilled with soil cuttings upon completion. abbrehdations. WATER LEVEL OBSERVATIONS 1 rerracon Boring Started: 6/29/2016 Boring Completed: 6/29/2016 No free water observed Drill Rig: Geoprobe 7822 DT Dnllec B. Burnett 72 Peirce Cir GreenHlle, SC Project No.: 86165078 Exhibit A-9 BORING LOG NO. B-7 Page 1 of 1 PROJECT: Bojangles in Mills River CLIENT: Rigsby Family Holdings, LLC Arden, NC SITE: 3591 Boylston Highway Mills River, North Carolina o LOCATION See Exhibit A-2 m w 0 W O W I )a F W N K r d M h Q W� W J F J O W W Z Q F o am < LL CL 3z 3 O W U DEPTH FILL - SANDY SILT IML), with roots, dark brown, stiff 130 5-5-7 17 N=12 RESIDUAL - SILTY SAND ISM), fine grained, light brown to reddish orange, loose _ 4-4-6 20 N=10 5 — 3-4-5 7 Boring Terminated at 7.5 Feet Stratification lines are approdmale.In-sit, the transition may be gradual. Hammer Type: Automatic Advancement Method: See ExhibltA-3 for description of field procedures. Notes'. 2 1W Hollow Stem Auger See Appendix B for description of laboratory procedures and additional data (if any). See Appendix C for explanation of symbols and Abandonment Method: Borings backflled with soil cuttings upon completion. abalwations. WATER LEVEL OBSERVATIONS l��rracon Boring Started: fil2912016 Boring Competed: 6/29/2016 No free water observed Drill Rig: Geoprobe 7822 DT Driller B. Burnell 72 Pointe Or Cxeenalle, SC Project No.: 86165078 Exhibit A-10 BORING LOG NO. B-8 Page 1 of 1 PROJECT: Bojangles in Mills River CLIENT: Rigsby Family Holdings, LLC Arden, NC SITE: 3591 Boylston Highway Mills River, North Carolina LOCATION See Exhibit A-2 a o O O wW O it F 2 2 F JQ R'i dd J J 'y WZ QW a wW 30 o ol a LL U DEPTH O h FILL -SANDY SILT (Ill with roots, dark brown, stiff 110 4-4-5 N=g RESIDUAL - SILTY SAND (SM), fine grained, light gray to brownish gray, medium dense to loose — 988 N=16 5 — 2-3-4 7.5 N_7 Boring Terminated at 7.5 Feet Stratification lines are approximate. In -situ, the transition may be gradual. Hammer Type: Automatic Advancement Method: See Exnibit A3 for description of field procedures. Notes: 2 1/4" Hollow Stem Auger See Appendix B for description of laboratory procedures and additional data (if any). See Appendix C for explanation of symbols and Abandonment Method Borings backfilled with soil cuttings upon completion. abbreviations. WATER LEVEL OBSERVATIONS 1 iarracon Boring Stoned: 6/29/2016 Boxing Completed. 6/29/2016 No free water observed Drill Rig: Geoprobe 7822 DT Driller B. Burnett Or Lnte Greenville, SC Protect No.: 86165078 Exhibit: A-11 BORING LOG NO. B-9 Page 1 of 1 PROJECT: Bojangles in Mills River CLIENT: Rigsby Family Holdings, LLC Arden, NC SITE: 3591 Boylston Highway Mills River, North Carolina 0 o LOCATION See Erhibit A-2 wo a e u i a to to r? � r wz a qa to ww a w z o am 3 1 1� O DEPTH 0 n FILL - SANDY SILT (MIL), with roots, light brown, stiff 5-7-7 20 N=14 3.0 RESIDUAL - SILTY SAND (Stiff, fine to medium grained, light brown to gray, loose _ 6-4-5 24 N=9 5 — 4-5-4 22 T5 N=9 Boring Terminated at 7.5 Feet Stratification tines are approximate. In -situ, the transition maybe gradual. Hammer Type: Automatic Advancement Method: See Exhibit A-3for description of field procedures. Notes. 2114- Hollow Stem Auger See Appendix B for description of laboratory procedures and additional data (if any). See Appendix C for evianation of symbols and Abandonment Method: Borings backfilled with and cvWngs upon completion. abbreaalions. WATER LEVEL OBSERVATIONS 1 rerracon Boring Started: 6/2912016 Boring Completed: 6/29/2016 No free water observed Drill Rig: Geoprobe 7822 DT Dnllec B. Burned 72 Pointe Cir CxeenNlle, SC Project No.: 86165078 Exhibit: A-12 GENERAL NOTES • DESCRIPTION OF SYMBOLS AND ABBREVIATIONSnX DESCRIPTIVE SOIL CLASSIFICATION Soil classification is based on the Unified Soil Classification System. Coarse Grained Soils have more than 50% of their dry weight retained on a #200 sieve; their principal descriptors are: boulders, cobbles, gravel or sand. Fine Grained Soils have less than 50% of their dry weight retained on a #200 sieve; they are principally described as clays if they are plastic, and silts if they are slightly plastic or non -plastic. Major constituents may be added as modifiers and minor constituents may be added according to the relative proportions based on grain size. In addition to gradation, coarse -grained soils are defined on the basis of their in -place relative density and fine-grained soils on the basis of their consistency. LOCATION AND ELEVATION NOTES Unless otherwise noted, Latitude and Longitude are approximately determined using a hand-held GPS device. The accuracy of such devices is variable. Surface elevation data annotated with +/- indicates that no actual topographical survey was conducted to confirm the surface elevation. Instead, the surface elevation was approximately determined from topographic maps of the area. RELATIVE PROPORTIONS OF SAND AND GRAVEL GRAIN SIZE TERMINOLOGY Descriptive Term(s) Percent of Maier Component Particle Size of other constituents Dry Weight of Sample Trace < 15 Boulders Over 12 in. (300 mm) With 15 - 29 Cobbles 12 in. to 3 in. (300mm to 75mm) Modifier > 30 Gravel 3 in, to #4 sieve (75mm to 4.75 mm) Sand #4 to #200 sieve (4.75mm to 0.075mm Silt or Clay Passing #200 sieve (0.075mm) RELATIVE PROPORTIONS OF FINES PLASTICITY DESCRIPTION Descriptive Termfsl Percent of Term Plasticity Index of other constituents DryWeiaht Non -plastic 0 Trace < 5 Low 1 - 10 With 5-12 Medium 11 - 30 Modifier > 12 High > 30 1 rerracon Exhibit B-1 Water Initially (HP) Hand Penetrometer Encountered Auger Split Spoon � Water Level After a Specified Period of Time (T) Torvane ' � J W Water Level After � a Specified Period of Time (A H (b/f) Standard Penetration 0 N Test (blows per foot) Z Shelby Tube Macro Core W W Q_J � Water levels indicated on the soil boring logs are the levels measured in the � J (pID) Photo -Ionization Detector W borehole at the times indicated. W � Q Groundwater level variations will occur U.( OVA Organic Vapor Analyzer ) Yz Ring Sampler Rock Core � over time. In low permeability soils, accurate determination of groundwater V / levels is not possible with short term water level observations. Grab Sample No Recovery RELATIVE DENSITY OF COARSE -GRAINED SOILS CONSISTENCY OF FINE-GRAINED SOILS (More than 50 % retained on No. 200 sieve.) (50 % or more passing the No. 200 sieve.) Density determined by Standard Penetration Resistance Consistency determined by laboratory shear strength testing, field Includes gravels, sands and silts. visual -manual procedures or standard penetration resistance N Descriptive Term Standard Penetration or Ring Sampler Descriptive Term Unconfined Compressive Standard Penetration or Ring Sampler � (Density) N-Value Blows/Ft. (Consistency) Strength, Du, tsf N-Value Blows/Ft. QI Blows/Ft. BlowslFt. W F Very Loose 0-3 0-6 Very Soft less than 0.25 0-1 < 3 ~ Loose 4-9 7-16 Soft 0.25 to 0.50 2-4 3-4 Z W Medium Dense 10 - 29 19 - 58 Medium -Stiff 0.50 to 1.00 4-8 4 UNIFIED SOIL CLASSIFICATION SYSTEM Soil Classification Criteria for Assigning Group Symbols and Group Names Using Laboratory Tests A Group Symbol Group Name Gravels: Clean Gravels: Cu >_ 4 and 1 5 Cc 5 3 e GW Well -graded gravel r More than 50% of Less than 5% fines c Cu < 4 and/or 1 > Cc > 3 s GP Poorly graded gravel P Coarse Grained Soils: More than 50% coarse fraction retained on No. 4 sieve Gravels with Fines: More than 12% fines Fines classify as ML or MH GM Silty gravel r,G. H Fines classify as CL or CH y GC Clayey ravel F.G,H Y Y 9 retained on No. 200 sieve Sands: 50% or more of coarse Clean Sands: Less than 5% fines ° Cu >: 6 and 1 5 Cc 5 3 e SW Well -graded sand' Cu < 6 and/or 1 > Cc > 3 e SP Poorly graded sand' fraction passes Sands with Fines: Fines classify as ML or MH SM Silty sand G"' No. 4 sieve More than 12% fines ° Fines Classify as CL or CH SC Clayey sand GH' Silts and Clays: Inorganic: PI > 7 and plots on or above "A" line' CL Lean clay K,LM PI <4 or plots below "A" line' ML Silt KLM Fine -Grained Soils: 50% the Liquid limit less than 50 Organic: Liquid limit - oven dried <0.75 OL Organic clay K•LM N Liquid limit - not dried Organic silt KLMO or more passes No. 200 sieve Silts and Clays: Inorganic: PI plots on or above "A" line CH Fat clay K,LM PI plots below "A" line MH Elastic Silt K,L,M Liquid limit 50 or more Organic: Liquid limit - oven dried < . 075 OH Organic clay K.LM`v Liquid limit -not dried Organic silt K,LM,o Highly organic soils: Primarily organic matter, dark in color, and organic odor PT Peat A Based on the material passing the 3-in. (75-mm) sieve H If fines are organic, add "with organic fines" to group name. e If field sample contained cobbles or boulders, or both, add "with cobbles If soil contains >- 15% gravel, add "with gravel" to group name. or boulders, or both" to group name. ' If Atterberg limits plot in shaded area, soil is a CL-ML, silty clay. c Gravels with 5 to 12% fines require dual symbols: GW-GM well -graded K If soil contains 15 to 29% plus No. 200, add "with sand" or "with gravel with silt, GW-GC well -graded gravel with clay, GP -GM poorly gravel," whichever is predominant. graded gravel with silt, GP -GC poorly graded gravel with clay. L If soil contains >- 30% plus No. 200 predominantly sand, add "sandy" ° Sands with 5 to 12% fines require dual symbols: SW-SM well -graded to group name. sand with silt, SW -SC well -graded sand with clay, SP-SM poorly graded sand with silt, SP-SC poorly graded sand with clay M If soil contains >- 30% plus No. 200, predominantly gravel, add "gravelly' to group name. (D )' e Cu = D6dD,o Cc = '0 D10 x D60 N PI 2 4 and plots on or above "A" line. ° PI < 4 or plots below "A" line. P PI plots on or above "A" line. F If soil contains >- 15% sand, add "with sand" to group name. ° PI plots below "A" line. G If fines classify as CL-ML, use dual symbol GC -GM, or SC-SM. 60 50 a W 40 O Z } 30 U a 20 J a 10 o LIQUID LIMIT ILL) 1 rerracon Exhibit B-2 For classification of fine-grained �� I soils and fine-grained fraction of coarse -grained soils Equation of"A" - line Horizontal at PI=4 to LL=25.5. — then PI=0.73 (LL-20) 0 I •P� +J ,f� - Equation of "U" -lino Vertical at LL=16 to PI=7, �oK �+ then PI=0.9 (LL-6) _G to jMH or OH � � Imo— __ i L -ML MLorOL i �—I See last page of Deed for various pins and REID's. *Qs 840761 PAGE 304 (3) This document presented and filed: 05103t2016 02:41:18 PM WILLIAM LEE KING, Henderson COUNTY, NC Transfer Tax: $0.00 NORTH CAROLINA GENERAL WARRANTY DEED Excise Tax -0- Parcel Identification No. Mail after recording to Robert L. Hogan, PO Box 1688, Hendersonville, NC 28793 This instrument was prepared by: Robert L. Hogan Brief description for the Index: Various Tracts Title Not Certified THIS DEED made this day of 6 ?: ( , 2016, by and between: GRANTOR GRANTEE James A. Goode, Unmarried James Goode Revocable Trust 5674 Old Haywood Road Under Agreement Dated February 6, 2013 Mills River, NC 28759 James Goode, Trustee 5674 Old Haywood Road Mills River, NC 28759 The designation Grantor and Grantee as used herein shall include said parties, their heirs, successors, and assigns, and shall include singular, plural, masculine, feminine or neither as required by context. WITNESSETH, that Grantor, for a valuable consideration paid by Grantee, the receipt of which is hereby acknowledged, has and by these presents does grant, bargain, sell and convey unto Grantee in fee simple, all that certain lots or parcels of land situated in Henderson County, North Carolina, and more particularly described as follows: See attached Exhibit A THIS PROPERTY DOES DOES NOT x INCLUDE GRANTOR'S PRINCIPAL RESIDENCE.(N.C.G.S. 105-317.2) This property was acquired by Grantor by instrument recorded in Deed Book , Page Book 1661 Page 305 TO HAVE AND TO HOLD the Aforesaid Property and all privileges and appurtenances thereto belonging to Grantee in fee simple. And Grantor covenants with Grantee, that Grantor is seized of the Property 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 Grantor will warrant and defend the title against the lawful claims of all persons whomsoever except for the exceptions hereinafter stated. Title to the Property is subject to the following exceptions: Ad valorem taxes for the current year and subsequent years, easements, rights of way and restrictions of record. IN WITNESSETH WHEREOF, Grantor has hereunto set his hand and seal, the day and year first above written. (SEAL) James A. Goode STATE OF NORTH CAROLINA COUNTY OF Henderson I certify that the following person personally appeared before me this day, each acknowledging to me that he voluntarily signed the foregoing document for the purpose stated therein and in the capacity indicated: James A. Goode, Grantor. Date: o �/LZd/ /�_ 1 C✓fZ �y - Robert L. Hog -Notary Public My Commission Expires: 08/19/2018 Book 1661 Page 306 EXHIBIT A Goode/Goode Revocable Trust BEING all real property located in Henderson County North Carolina including but not limited to the following: 1. Being that identical property as described in Deed Book 804 at Page 31, Henderson County North Carolina Registry. 0106870 0800989 2. Being that identical property as described in Deed Book 970 at Page 27, Henderson County North Carolina Registry. PIN 9631694965, Parcel 0800989. 9960037 & 9960038 3. Being that identical property as described in Deed Book 1 123 at Page 166, Henderson County North Carolina Registry. PIN 9631697733, Parcel 9960038. 4. Being that identical property as described in Deed Book 1 145 at Page 170, Henderson County North Carolina Registry. PIN 9631697963, Parcel 9972987. 9972987 5. Being that identical property as described in Deed Book 1577 at Page 690, Henderson County North Carolina Registry. Parcel 1002946; 1004800; 1004627 1002946,1004800, & 1004627 intl inL ] ! REID ;Card -' Owner Nam- Deed Ref Doc. Tvoe Deed Date Physical Address ! PJ Sta[us i Property Desc. -- --� PIN ] ! 0800152; P !GOODE, JAMES A 1000735-007371GWD 1 4/11/1989 10 NO ADDRESS ASSIGNED MR! ACTIVE JEFFERESS RD 19631 00 69 4841 -1.0800882; P iGOODE, JAMES 1000735-007911� GWD 1 4/11/1989 k 3591 BOYLSTON HWY 1MRIACTIVEI.NC191 ON _ k96320060418( ] 10800989; 1 of 1!GOODE, JAMES A 1000970-000271 GWD i 11/6/1998!3609 BOYLSTON HWY ;MRIACTNE"I NC191 ON 96310069496E ] 108011901. P iGOODE, JAMESA j000736-000831GWD 1 4/13/19891 ONO ADDRESS ASSIGNED IMRI ACTIVE{NC191 ON ^_j9632 0060520`_ ] �10029461 P jGOODE, JAMESA :001577-006901SWD 16/13/2014 i 12 PENLAND RD i MRIIACTNEjGREENE PROP OMSLD-5484 i9632 607153 ] 199600371 P' IGOODE, JAMES A 1001123-00166 PLAT 112/23/200210 NO ADDRESS ASSIGNED IMRj ACTIVE;:*04 GREENE PROPERTY 19631 00 69 7621 ] �99600381 P GOODE, JAMES A 1001123-001661 PLAT �12/23/2002!0 NO ADDRESS ASSIGNED ;M—R7N IACTE:,t05 GREENE PROP 19631 00 69 773- _-1 _ ❑ 1 99716431 P IGOODE, JAMES A J 1001119-00446 1 GWD { ! 11/20/200210 NO ADDRESS. ASSIGNED IMR(�OLD HAYWOOD RD i9632 00 69 462( �] 19972987i P GOODE, JAMES A 1001145-00170 1 PLAT 6/30/2003 10 NO ADDRESS ASSIGNED 1MWACTIVE 1R09 GREENE PROP 9631 00 69 7963 ❑ 11004 P GOODE, JAMESA 001577-0069 WD 1 6/13/2014 1140 VANCE HILL DR ! MMRIAC�T_IVE j,TR3.l0A NC280 ON BMSLD-6004 ! 00 : 5( i 10048001 1 of 1 GOODE, JAMESA loon 77-00690 1SWD _.9632 16/13/2014 140 EMMA SHARP RD MRjACTIVE 1TR6.87A GREENE PROP BMSLD-6004 19632 00 60 945Z ❑ 19948548I 1 of 11000DE, JAMES TRUSTEE (1001661-003071GWD 1 5/3/2016 �5674 OLD HAYWOOD RD jMR'ACTI NC 191 ON 19632 00 69 5821