The URL can be used to link to this page

Home My WebLink About20221219_ESC_Calculations_22553_12-02 MORGANTON QUARRY 2023 MINE PERMIT MODIFICATION FOR VULCAN CONSTRUCTION MATERIALS, LLC BURKE COUNTY, NORTH CAROLINA alley, williams, carmen, & king, inc. CONSULTING ENGINEERS FIRM LICENSE No. F-0203 120 SOUTH MAIN STREET P. O. BOX 1248 KANNAPOLIS,NC 28082 704/938-1515 PROJECT NO. 22553 May 6, 2020 CA/y SEAL - 16883 - NOAA Atlas 14,Volume 2,Version 3 Location name: Morganton, North Carolina, USA* '� Latitude: 35.7708°, Longitude: Elevation: 1076.34 ft source:ESRI Maps r v4ar **source:USGS POINT PRECIPITATION FREQUENCY ESTIMATES G.M.Bonnin,D.Martin,B.Lin,T.Parzybok,M.Yekta,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/hourp Average recurrence interval(years) Duration - �� 1 2 5 10 25 50 100 200 500 1000 5-min 4.43 5.26 6.25 7.02 8.00 8.75 9.49 10.2 11.2 12.0 (4.06-4.85) fl (4.82-5.76) 1 (5.70-6.84) 1 (6.38-7.67) (7.22-8.76) (7.84-9.59) (8.45-10.5) 1 (9.02-11.4) 1 (9.73-12.5) (10.3-13.5) 10-min 3.53 4.21 5.00 5.61 6.37 6.96 7.54 8.12 8.89 9.47 (3.24-3.87) (3.86-4.60) 1 (4.57-5.47) 1 (5.11-6.13) (5.76-6.98) (6.24-7.64) (6.71-8.30) (7.15-9.00) 1 (7.69-9.92) (8.08-10.7) 15-min 2.95 3.52 4.22 4.73 5.39 5.88 6.36 6.83 7.46 7.92 (2.70-3.22) (3.23-3.86) 1 (3.85-4.62) 1 (4.31-5.17) 1 (4.87-5.90) 1 (5.27-6.45) 1 (5.65-7.00) (6.01-7.57) 1 (6.46-8.32) (6.76-8.92) 30-min 2.02 2.43 3.00 3.43 3.99 4.43 4.87 5.32 5.93 6.42 (1.85-2.21) (2.23-2.66) (2.74-3.28) (3.12-3.74) (3.60-4.37) 1 (3.97-4.85) (4.33-5.36) 1 (4.68-5.89) (5.14-6.62) 1 (5.48-7.22) 60-min 1.26 1.53 1.92 2.23 2.66 3.00 3.35 3.73 4.26 4.68 (1.15-1.38) (1.40-1.67) (1.75-2.10) (2.03-2.44) (2.40-2.91) 11 (2.69-3.29) (2.98-3.69) (3.28-4.13) (3.69-4.75) 11 (4.00-5.27) 2-hr 0.732 0.891 1.13 1.32 1.60 1.83 2.07 2.32 2.70 3.01 (0.667-0.800) (0.813-0.976) (1.03-1.24) 1 (1.20-1.45) 1 (1.44-1.75) 1 (1.63-2.00) (1.83-2.28) (2.03-2.58) (2.32-3.02) (2.55-3.39) 3-hr 0.524 0.635 0.805 0.944 1.15 1.32 ) 1.50 1.70 2.00 2.25 (0.479-0.578) (0.581-0.700) (0.733-0.885) (0.855-1.04) (1.03-1.26) (1.17-1.46 (1.32-1.67) 1 (1.48-1.90) 1 (1.70-2.25) 1 (1.88-2.56) 6-hr 0.329 0.396 0.495 0.578 0.699 0.802 0.912 1.03 ( 1.21 1.36 (0.303-0.360) (0.364-0.433) (0.453-0.542) (0.527-0.632) (0.632-0.765) (0.719-0.878) (0.808-1.00) (0.905-1.15) 1.04-1.36) (1.15-1.54) 12-hr 0.206 0.248 0.308 0.357 0.425 0.481 0.540 F 0.602 F 0.692 0.765 (0.190-0.224) (0.229-0.270) (0.283-0.335) (0.327-0.388) (0.388-0.463) (0.435-0.525) (0.485-0.591) (0.535-0.663) (0.606-0.767) (0.662-0.853) 24-hr 0.126 0.153 0.194 0.226 0.272 0.308 0.346 F 0.385 0.439 0.482 (0.117-0.136) (0.142-0.165) (0.181-0.209) (0.210-0.244) (0.251-0.292) (0.283-0.332) (0.316-0.373) (0.350-0.416) (0.396-0.476) (0.433-0.524) 2-day 0.075 0.091 0.115 0.133 0.159 0.179 0.199 0.221 0.250 0.274 (0.070-0.081) (0.085-0.098) (0.107-0.123) (0.124-0.143) (0.147-0.170) (0.164-0.192) (0.182-0.215) (0.201-0.239) (0.226-0.271) (0.246-0.297) 3-day 0.054 0.065 0.081 0.093 0.111 0.124 IF 0.138 IF 0.153 F 0.173 F 0.189 (0.050-0.057) (0.060-0.069) (0.075-0.087) (0.087-0.100) (0.102-0.119) (0.115-0.134) (0.127-0.149) (0.140-0.165) (0.157-0.187) (0.170-0.205) 4-day 0.043 0.051 0.064 0.073 0.087 0.097 0.108 0.119 0.134 0.146 (0.040-0.046) (0.048-0.055) (0.059-0.068) (0.068-0.079) (0.080-0.093) (0.090-0.104) (0.099-0.116) (0.109-0.128) (0.122-0.145) (0.132-0.158) 7-day 0.028 0.034 0.041 0.047 0.055 � 0.061 0.067 0.073 0.081 0.088 (0.026-0.030) (0.032-0.036) (0.039-0.044) (0.044-0.050) (0.051-0.059) (0.056-0.065) (0.062-0.072) (0.067-0.079) (0.074-0.088) (0.080-0.095) F10-day 0.023 0.027 0.032 0.037 0.042 0.046 0.051 0.055 0.060 0.065 (0.021-0.024) (0.025-0.029) (0.031-0.035) (0.034-0.039) (0.039-0.045) (0.043-0.049) (0.047-0.054) (0.051-0.059) (0.056-0.065) (0.060-0.070) 20-day 0.015 0.018 0.021 0.024 0.027 0.030 0.032 0.035 0.038 0.041 (0.014-0.016) (0.017-0.019) (0.020-0.022) (0.022-0.025) (0.025-0.029) (0.028-0.031) (0.030-0.034) (0.032-0.037) (0.035-0.041) (0.038-0.044) 30-day 0.012 0.015 0.017 0.019 0.021 0.022 0.024 0.025 0.027 0.029 (0.012-0.013) (0.014-0.015) (0.016-0.018) (0.018-0.019) (0.020-0.022) (0.021-0.023) (0.023-0.025) (0.024-0.027) (0.026-0.029) (0.027-0.031) [45-day 0.010 0.012 0.014 0.015 0.017 0.018 0.019 0.020 0.021 0.022 (0.010-0.011) (0.012-0.013) (0.013-0.014) (0.014-0.016) (0.016-0.017) (0.017-0.019) (0.018-0.020) (0.019-0.021) (0.020-0.022) (0.021-0.024) �-day 0.009 0.011 0.012 0.013 0.015 0.015 0.016 0.017 0.018 0.019 (0.009-0.010) (0.010-0.011) (0.012-0.013) (0.013-0.014) (0.014-0.015) (0.015-0.016) (0.016-0.017) (0.016-0.018) (0.017-0.019) (0.018-0.020) 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 PIMP values. Please refer to NOAA Atlas 14 document for more information. Back to Top PF graphical PDS-based intensity-duration-frequency (IDF) curves Latitude: 35.77081, Longitude: -81-6596' 100-000 Average recurrence interval 10-000 .-:.-...-...-1... .... ... (years) L 2 1.000 — 5 di C 1Q G 25 �2 0.100 _____________ _ ______ __ +� 200 6Q a 0.014 ______,_____ ---- 500 ------ - 10UU 0-001 L L L L L rp rq r4 M r4 r4 rp r9 r4 o o o A A Lb H A4 � a o o �o ,4 ,4 m w H ry rn v Ln Duration 100-000 t 10-000 --...------------- ...................................... Duration ZI 1-000 ..... :.. ......... .... .- _.------ — "in — 2-day — 76-min — 3-day C I5-min — 4-day }°- 0-100 .. ... . .... :. -- ...... ----- — 30�-min — 7-day — 60-min — 10-day W — 2-nr — 2D-clay a 0-014 :. — 3-hr — S�d2iy 6-hr — 45-day 12-hr — 6o-day 0-001 — 24-hr 1 2 5 10 25 50 100 200 500 1000 Average recurrence interval (years) NDAAAtlas 14,Volume 2,Version 3 Created{GMTY Tue Nov 29 33-59.23 2022 Back to Top Maps & aerials Small scale terrain j "io U! # f * , 1 `* axe -- 3km S 4Fg11'J r Large scale terrain :#`. . L Kingsl;oit' Bristol � U [yam` ` Job nson City* { r - �� III}st01}-�a�El}} J Ile I .: t•� Greensboro 4 r:•it r-9i1�ll— 6 M1 h 41'.ti�� •Asherille I rr NORTH CAROLIT% Charlotte + Fa} 100km mvllle 60mi Large scale map _ �Sirigsprt Bristol .— — — Johnson City inston� lem Green .++ N, Car f arlOtte ry Gre le 100km 60mi rrr� Large scale aerial King k# Johnson noxville Greensboro Asheville Ni Car Charlotte Ile Greemi 100km 60mi Back to Top US Department of Commerce National Oceanic and Atmospheric Administration National Weather Service National Water Center 1325 East West Highway Silver Spring,MD 20910 Questions?:HDSC.Questions@noaa.gov Disclaimer �. / '� \ ♦�� III :� � . _ ► �� = '�► III' I� ��I%% i SEEM A mom 'it ON 1000% , ZII :1111 _ - QUARRY m� SEDIMENT BASIN IOU FIRM MODIFICATION2023 MINE PERMIT DRAINAGE AREA MAP �� ROCK DAMS WITH EFFICIENCY DESIGN VMC-MORGANTON QUARRY RCC 22553 11/30/2022 FREEBOARD (MIN. 1.5 FT REQUIRED FROM TOP OF MINIMUM DESIGN DESIGN REQUIRED SURFACE SEDIMENT SPILLWAY FLOW BASIN BOTTOM SPILLWAY CLEANOUT SEDIMENT SURFACE AREA RUNOFF STORAGE AREA DEPTH TO TOP OF DAM) DIMENSIONS WIDTH DEPTH STORAGE SURFACE AREA DIMENSIONS AREA ACRES IN/HR IN/HR) (CFS) (CFS (FT3) (FT2) (FT) FT (FT) FT (FT) (FT3) (FT (FT2) �* w 0 w c� Z C 110 125 Q10 Q25 z z z o F- < w w w w _ ❑ J J J c 0 RD 01-9 28.0 28.0 0.5 5.6 6.4 78.5 89.2 100,800.0 34,212.0 5.0 1.5 IRREGULAR-SEE BELOW 44.6 3.0 132,889.0 IRREGULAR-SEE BELOW 43,000.0 Design of rock dam assumes all areas upstream of the basin will be disturbed, Actual disturbed area will be less DESIGN STORAGE AREA SPILLWAY CLEANOUT SEDIMENT SURFACE WIDTH DEPTH STORAGE AREA W1 L1 D1 W2 L2 D2 W3 L3 (FT) D3 (FT3) A2 RD 01-9 SEE BELOW 45 3.0 SEE BELOW SEE BELOW STORAGE BASIN 01-9 ELEVATION SURFACE AREA VOLUME VOLUME NOTES L1 = BASIN LENGTH AT THE BOTTOM OF THE BASIN SF FT FT W1 = BASIN WIDTH AT THE BOTTOM OF THE BASIN 1098.0 0.0 0.00 0.00 BASIN FLOOR L2= BASIN LENGTH AT THE TOP OF THE SEDIMENT STORAGE 1100.0 7254.0 7254.00 7254.00 W2= BASIN WIDTH AT TOP OF THE SEDIMENT STORAGE 1101.0 27889.0 17571.50 24825.50 L3= BASIN LENGTH AT THE TOP OF THE EMBANKMENT 1102.0 29432.0 28660.50 53486.00 W3= BASIN WIDTH AT THE TOP OF THE EMBANKMENT 1103.0 31006.0 30219.00 83705.00 D1 =THE DEPTH OF SEDIMENT STORAGE 1104.0 32611.0 31808.50 115513.50 SEDIMENT STORAGE D2=THE OVERALL DEPTH OF THE SEDIMENT BASIN 1105.0 34426.0 33518.50 149032.00 SPILLWAY D3=THE CLEANOUT DEPTH OF THE SEDIMENT BASIN 1106.0 35910.0 35168.00 184200.00 A2=SURFACE AREA AT THE TOP OF THE SEDIMENT STORAGE 1107.0 37598.0 36754.00 1 220954.00 ITOP DESIGN NOTES: 1 REQUIRED SEDIMENT STORAGE VOLUME=3600 CIF PER DISTURBED ACRE 2 REQUIRED SURFACE AREA FOR EFFICIENCY= 0.01*Q10*43560 3 CLEANOUT DEPTH =60% OF THE DESIGN STORAGE 4 ALL RUNOFF HAS BEEN CALCULATED USING THE RATIONAL METHOD 5 10-YEAR DESIGN STORM USED FOR SURFACE AREA,25-YEAR DESIGN STORM USED FOR SPILLWAY 6 RAINFALL INTENSITIES ARE BASED ON A 10 MINUTE TIME OF CONCENTRATION 7 SEDIMENT VOLUME CALCULATIONS ASSUME 2:1 SLOPES IN THE BASIN 8 MINIMUM SPILLWAY WIDTH CALCULATED USING A WEIR C VALUE OF 2.0 AND A FLOW DEPTH OF 1 FOOT - �►1�l �. / '� \ � ♦�� III •0�1w" i � . `Il Nil II ko FEWWMI lw ��r0 1�\ must sL _RNN I um SR ME alley, williams, carmen, king, inc. MORGANTON QUARRY CONSULTING ENGINEERS IOU 2023 MINE PERMIT MODIFICATION FIRM DRAINAGE MAP . . �� CHANNEL CALCULATIONS VMC - MORGANTON QUARRY RCC 22553 12/8/2022 CHANNEL ID DRAINAGE C VALUE 125 (IN/HR) Q25 FLOW AREA AC CFS Channel 23-1 11.7 0.50 8.00 46.8 Design Notes: 1. Calculations are based on the Rational Method. 2. A C-value of 0.50 is used for all drainage areas. 3. Intensity values taken from NOAA Atlas 14, Volume 2, Version 3 Point Precipitation Frequency Estimates for Morganton, NC. 4. Time of Concentration is assumed to be 5.0 minutes. Channel Analysis: Channel 23-1 (1% Slope) Notes: Grass lined channel with NAG P300 geotextile liner Input Parameters Channel Type: Trapezoidal Side Slope 1 (Z1): 2.0000 ft/ft Side Slope 2 (Z2): 2.0000 ft/ft Channel Width: 10.0000 ft Longitudinal Slope: 0.0100 ft/ft Manning's n: 0.0400 Flow: 46.8000 cfs Result Parameters Depth: 1.1046 ft Area of Flow: 13.4864 ft^2 Wetted Perimeter: 14.9400 ft Hydraulic Radius: 0.9027 ft Average Velocity: 3.4702 ft/s Top Width: 14.4184 ft Froude Number: 0.6323 Critical Depth: 0.8299 ft Critical Velocity: 4.8364 ft/s Critical Slope: 0.0270 ft/ft Critical Top Width: 13.32 ft Calculated Max Shear Stress: 0.6893 Ib/ft^2 Calculated Avg Shear Stress: 0.5633 Ib/ft^2 Channel Analysis: Channel 23-1 (5% Slope) Notes: Grass lined channel with NAG P300 geotextile liner Input Parameters Channel Type: Trapezoidal Side Slope 1 (Z1): 2.0000 ft/ft Side Slope 2 (Z2): 2.0000 ft/ft Channel Width: 10.0000 ft Longitudinal Slope: 0.0500 ft/ft Manning's n: 0.0400 Flow: 46.8000 cfs Result Parameters Depth: 0.6934 ft Area of Flow: 7.8957 ft^2 Wetted Perimeter: 13.1010 ft Hydraulic Radius: 0.6027 ft Average Velocity: 5.9273 ft/s Top Width: 12.7736 ft Froude Number: 1.3286 Critical Depth: 0.8299 ft Critical Velocity: 4.8363 ft/s Critical Slope: 0.0270 ft/ft Critical Top Width: 13.32 ft Calculated Max Shear Stress: 2.1634 Ib/ft^2 Calculated Avg Shear Stress: 1.8804 Ib/ft^2 Channel Analysis: Channel 23-1 (10% Slope) Notes: Grass lined channel with NAG P300 geotextile liner Input Parameters Channel Type: Trapezoidal Side Slope 1 (Z1): 2.0000 ft/ft Side Slope 2 (Z2): 2.0000 ft/ft Channel Width: 10.0000 ft Longitudinal Slope: 0.1000 ft/ft Manning's n: 0.0400 Flow: 46.8000 cfs Result Parameters Depth: 0.5660 ft Area of Flow: 6.3005 ft^2 Wetted Perimeter: 12.5311 ft Hydraulic Radius: 0.5028 ft Average Velocity: 7.4280 ft/s Top Width: 12.2639 ft Froude Number: 1.8263 Critical Depth: 0.8299 ft Critical Velocity: 4.8368 ft/s Critical Slope: 0.0270 ft/ft Critical Top Width: 13.32 ft Calculated Max Shear Stress: 3.5317 Ib/ft^2 Calculated Avg Shear Stress: 3.1374 Ib/ft^2 FHWA Hydraulic Toolbox version 5.0 Hydraulic Analysis Report Project Data Project Title: Morganton Quarry 2023 Mine Modification Project Date: December 16, 2022 Notes: Phase 1A expansion of Overburden Area A Channel Analysis: Channel 23-1 (25% Slope) Notes: Grass lined channel with NAG P300 geotextile liner Input Parameters Channel Type: Trapezoidal Side Slope 1 (Z1): 2.0000 ft/ft Side Slope 2 (Z2): 2.0000 ft/ft Channel Width: 12.0000 ft Longitudinal Slope: 0.2500 ft/ft Manning's n: 0.0400 Flow: 46.8000 cfs Result Parameters Depth: 0.3886 ft Area of Flow: 4.9654 ft^2 Wetted Perimeter: 13.7379 ft Hydraulic Radius: 0.3614 ft Average Velocity: 9.4252 ft/s Top Width: 13.5545 ft Froude Number: 2.7443 Critical Depth: 0.7459 ft Critical Velocity: 4.6505 ft/s Critical Slope: 0.0275 ft/ft Critical Top Width: 14.98 ft Calculated Max Shear Stress: 6.0624 Ib/ft^2 Calculated Avg Shear Stress: 5.6384 Ib/ft^2