SW3240102_Design Calculations_20240816

PROJECT CALCULATIONS
LANES CREEK VFD
FIRE DEPARTMENT
UNION COUNTY
MONROE, NC
ENGINEERING
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Mc2 Engineering, Inc.
2110 Ben Craig Dr., Suite 400
Charlotte, North Carolina 28262
[phone]
PROJECT NO. 21-036
DATE: 4/30/24
REVISION DATE: 8/15/24

TABLE OF CONTENTS
SECTION 1 - EROSION CONTROL
L CHANNEL CALCULATIONS
SECTION 2 - STORM SEWER
I. STORM SEWER PIPE SIZING
SECTION 3 - APPENDIX
I. NOAA RAINFALL DEPTH
II. SOIL REPORT
Me2
ENGINEERING

EROSION CONTROL CALCULATIONS
Me2
ENGINEERING

ElNORTH North American Green
AMERICAN 5401 St. Wendel-Cynthiana Rd.
Poseyville, Indiana 47633
GREEN Tel. [phone]
>Fax [phone]
www.nagreen.com
ECMDS v7.0
CHANNEL ANALYSIS
>>>SD2
Name SD 2
Discharge 2.33
Channel Slope 0.02
Channel Bottom Width 18
Left Side Slope 3
Right Side Slope 3
Low Flow Liner
Retardence Class C 6-12 in
Vegetation Type Bunch Type
Vegetation Density Good 65-79%
Soil Type Silt Loam(SM)
S75
Normal Permissible Calculated Safety Staple
Phase Reach Discharge Velocity Mannings N Remarks
Depth Shear Stress Shear Stress Factor Pattern
S75 Unvegetated Straight 2.33 cfs 1.19 ft/s 0.11 ft 0.039 1.6 lbs/ft2 0.13 lbs/ft2 12.02 STABLE D
Underlying Straight 2.33 cfs 1.19 ft/s 0.11 ft 0.039 1.17 Ibs/ft2 0.13 Ibs/ft2 8.98 STABLE D
Substrate
Unreinforced Vegetation
Normal Permissible Calculated Safety Staple
Phase Reach Discharge Velocity Mannings N Remarks
Depth Shear Stress Shear Stress Factor Pattern
Unreinforced Straight 2.33 cfs 0.73 ft/s 0.17 ft 0.088 4 lbs/ft2 0.22 Ibs/ft2 18.6 STABLE --
Vegetation
Underlying Straight 2.33 cfs 0.73 ft/s 0.17 ft 0.088 4 Ibs/ft2 0.21 Ibs/ft2 19.17 STABLE --
Substrate

ElNORTH North American Green
AMERICAN 5401 St. Wendel-Cynthiana Rd.
Poseyville, Indiana 47633
GREEN Tel. [phone]
>Fax [phone]
www.nagreen.com
ECMDS v7.0
ANALYSIS COMPUTATIONS
>>>>View Computation
Inputs
Channel Discharge(Q): 2.33 cfs
Peak Flow Period (H): hours
Channel Slope(S0): 0.02 ft/ft
Bottom Width (B): 18 ft
Left Side Slope (ZL): 3 (H : V)
Right Side Slope(ZR): 3 (H : V)
Existing Channel Bend: No
Bend Coefficient(Kb): 1
Channel Bend Radius:
Retardance Class of Vegetation:C 6-12 in
Vegetation Type: Bunch Type
Vegetation Density: Good 65-79%
Soil Type: Silt Loam (SM)
Channel Lining Options
iS75 Protection Type Temporary
Basic Relationships
A = Cross sectional area, ft2(m2)=(B*D)+(ZL/2 * D2)+(ZR/2 * D2)
Where:
B = Base width of channel,ft(m)
D = Flow depth,ft(m)
ZL= Left side bank slope(H : 1 V)
ZR= Right side bank slope(H : 1 V)
P= Wetted perimeter;ft(m) = B+ ZL* D + ZR* D
R=Hydraulic radius,ft(m)=A/P
V = Flow velocity,ft/s(m/s) = Q/A
Where:
Q = Channel discharge,cfs(cms)
Taua Average bed shear stress, psf(Pa) = 62.4* R* SO
Where:
SO = Gradient of channel,ft/ft(m/m)
Tauo= Maximum bed shear stress, psf(Pa) = 62.4* D*So
Unvegetated Conditions Computations:
n = Manning's n = a *Tauab
and (iteratively solved).
n = 1.486/Q*A* R(2/3)So°•5
Where:
n = Manning's n
a = Product specific coefficient from performance testing
b = Product specific coefficient from performance testing

SFp= Product factor of safety =Taur/Tauo
Where:
TauT= Permissible shear stress from testing, psf(Pa)
Taup= In place permissible shear, psf(Pa) =TauT/alpha * (Taus+ alpha/4.3)
Where:
alpha = unit conversion constant, 0.14 English, 6.5 Metric
Taus = Permissible shear stress of soil
SFL= Factor of safety of installed liner=Taup/Taua
Vegetated Computations:
n = Manning's n = alpha * Cn*Taua-0.4
and (iteratively solved).
n = 1.486/Q *A* R(2/3)So05
Where:
alpha = Unit conversion constant, 0.213 English, 1.0 Metric
Cn = Vegetation retardance coefficient
SFp= Product factor of safety =Taurv/Tauo
Where:
TauTv= Permissible shear stress from testing, psf(Pa)
Taup= In place permissible shear, psf(Pa) =Taus/(1 -CFTRM) * (n/ ns)2
Where:
CFTRM= Coefficient of TRM performance derived from testing Taus= Permissible shear stress of soil
ns= Manning's of soil bed if left unprotected
SFL= Factor of safety of installed liner=Taup/Taua
S75
Predicted flow Cross sectional Wetted Hydraulic Flow velocity Froude Calculated Shear
Phase Mannings N SFP/SFL
depth(D) area(A) perimeter(P) radius(R) (V) number(FR) Stress
S75 Unvegetated 0.039 0.11 ft 1.95 ft2 18.67 ft 0.1 ft 1.19 ft/s 0.66 0.13 lbs/ft2 12.02(SFP)
Underlying 0.039 0.11 ft 1.95 ft2 18.67 ft 0.1 ft 1.19 ft/s 0.66 0.13 lbs/ft2 8.98(SFL)
Substrate
Unreinforced Vegetation
Predicted flow Cross sectional Wetted Hydraulic Flow velocity Froude Calculated Shear
Phase Mannings N SFP/SFL
depth(D) area(A) perimeter(P) radius(R) (V) number(FR) Stress
Unreinforced 0.088 0.17 ft 3.19 ft2 19.09 ft 0.17 ft 0.73 ft/s 0.31 0.22 lbs/ft2 18.6(SFL)
Vegetation
Underlying 0.088 0.17 ft 3.19 ft2 19.09 ft 0.17 ft 0.73 ft/s 0.31 0.21 lbs/ft2 19.17(SFL)
Substrate

STORM SEWER CALCULATIONS
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ENGINEERING

STORM SEWER DESIGN Project No.: 21-036
Project: Lanes Creek VFD Designed by: JDM
Location: Monroe,NC Checked by: JDM
Date: 16-Aug-24
Pipe ho IN C, Qio Qio Qio Actual Upstream Downstream Upstream Structure
From To Inlet Total Inlet Travel Pipe Pipe Inlet Composite Side- Cumulative Total Slope Calculated Pipe CAP Actual Velocity Length Segment Invert Invert Pipe Rim Minimum Minimum
upstream downstream Area Area Tc Time Tc Intensity Intensity Runoff Stream Side-Stream Discharge Diameter Diameter (FULL) Velocity Full Time (From) (To) Material Elevation Depth Cover
(Ac) (Ac) (Min) (Min) (Min) (In/Hr) (In/Hr) Coefficient (cfs) (cfs) (cfs) (Ft/Ft) (In) (In) (CFS) (fps) (fps) (Ft) (Min) (Ft) (Ft) (Ft) (Ft) (FT)
YI6 YI5 0.09 0.09 5.00 0.00 5.00 7.74 7.74 0.51 0.00 0.36 0.0100 4.90 6 0.6 3.18 3.1 52.50 0.27 526.55 526.03 HDPE/PVC 528.10 1.55 1.01
YI5 YI4 0.11 0.20 5.00 0.27 5.27 7.74 7.74 0.51 0.00 0.79 0.0100 6.61 8 1.3 3.89 3.7 52.50 0.23 526.03 525.50 HDPE/PVC 528.10 2.08 1.35
YI 4 CO 3 0.04 0.24 5.00 0.50 5.50 7.74 7.74 0.51 0.00 0.95 0.0040 8.41 10 1.5 2.88 2.7 83.00 0.48 525.50 525.17 HDPE/PVC 527.75 2.25 0.00
CO 3 SD 2 0.00 0.24 5.00 0.98 5.98 7.74 7.74 0.51 0.00 0.95 0.0000 12 0.0 0.0 10.00 525.17 525.17 CMP 526.67 1.50 0.34
CHANNEL 1 0.52 5.00 7.74 0.58 2.33
Notes: Design for the 10-year storm assumes the Time of CB -Catch Basin Intensity=a/(b+T)AN,For 10-Year Storm Runoff Coefficients For Rational Method
Concentration to an individual Inlet=5 minutes. DCB -Double Catch Basin Tc=Time of Concentration,"a,""b"and"N"from City of Charlotte Lawns 0.30
DDI -Double Drop Inlet Wooded 0.25
Actual Velocity is calculated based upon percentage DI -Drop Inlet Intensity-Duration-Frequency Chart Values from Streets 0.95
of Full-Flowing pipe and actual depth of flow from DIS -Drop Inlet,Slab top NC Erosion and Sediment Control Planning and Design Manual Gravel 0.55
Hydraulic elements. FES -Flared End Section N= 0.8256 Single Family(Lot<20,000 SF) 0.60
HW -Headwall a= 83 Single Family(Lot>20,000 SF) 0.50
Manning's"n"Facto 0.012 JB -Junction Box b= 15 Multi-Family,Attached 0.70
Runoff Coefficients MH -Manhole
Me2
ENGINEERING

APPENDIX
Me2
ENGINEERING

NOAA Atlas 14,Volume 2,Version 3
Location name:Monroe,North Carolina,USA* r'°-�'"*
� , Latitude:34.9797°,Longitude:-80.5233°
l
`i� Elevation:544 ft*" �
m•• source:ESRI Maps
source:USGS
POINT PRECIPITATION FREQUENCY ESTIMATES
G.M.Bonnin,D.Martin,B.Lin,T.Paraybok,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/hour)1
IAverage recurrence interval(years) I
Duration I 1 II 2 II 5 II 10 II 25 II 50 II 100 II 200 II 500 II 1000 i
5-min 5.12 6.06 7.03 7.74 8.54 9.10 9.61 10.1 10.6 11.0
(4.72-5.57) (5.57-6.60) (6.44-7.64) (7.08-8.40) (7.79-9.26) (8.26-9.86) (8.68-10.4) (9.05-10.9) (9.43-11.5) (9.68-11.9)
10-min 4.09 4.84 5.63 6.19 6.80 7.24 7.63 7.98 8.37 8.63
(3.77-4.45) (4.45-5.27) (5.16-6.13) (5.66-6.71) (6.20-7.38) (6.58-7.85) (6.89-8.27) (7.17-8.65) (7.46-9.10) (7.63-9.40)
15-min 3.41 4.06 4.74 5.22 5.75 6.12 6.43 6.71 7.02 7.22
(3.14-3.71) (3.73-4.42) (4.35-5.16) (4.78-5.66) (5.24-6.24) (5.55-6.63) (5.81-6.97) (6.03-7.28) (6.26-7.64) (6.38-7.87)
30-min 2.34 2.80 3.37 3.78 4.26 4.61 4.93 5.22 5.59 5.85
(2.15-2.54) (2.58-3.05) (3.09-3.67) (3.46-4.10) (3.88-4.62) (4.18-4.99) (4.45-5.34) (4.69-5.67) (4.98-6.08) (5.17-6.37)
60-min 1.46 1.76 2.16 2.46 2.84 3.12 3.39 3.66 4.01 4.27
(1.34-1.58) (1.62-1.92) (1.98-2.35) (2.25-2.67) (2.59-3.07) (2.83-3.38) (3.06-3.68) (3.29-3.97) (3.57-4.36) (3.77-4.65)
2-hr 0.840 1.02 1.26 1.45 1.68 1.87 2.05 2.23 2.46 2.65
(0.770-0.918) (0.931-1.11) (1.15-1.38) (1.32-1.58) (1.53-1.84) (1.69-2.03) (1.84-2.23) (1.99-2.43) (2.18-2.69) (2.32-2.89)
3-hr 0.594 0.718 0.896 1.03 1.22 1.37 1.51 1.67 1.88 2.04
(0.543-0.654)(0.657-0.790)(0.818-0.985) (0.941-1.13) (1.10-1.34) (1.23-1.49) (1.35-1.65) (1.48-1.82) (1.64-2.05) (1.77-2.23)
6-hr 0.357 0.431 0.538 0.622 0.737 0.828 0.922 1.02 1.15 1.26
(0.327-0.392)(0.395-0.473)(0.492-0.591)(0.567-0.682)(0.667-0.804)(0.745-0.902) (0.823-1.00) (0.901-1.11) (1.00-1.25) (1.08-1.37)
12-hr 0.210 0.253 0.318 0.370 0.441 0.499 0.559 0.622 0.710 0.782
(0.192-0.230)(0.232-0.279)(0.291-0.349)(0.337-0.405)(0.399-0.482)(0.448-0.544)(0.497-0.609)(0.547-0.677)(0.614-0.772)(0.667-0.851)
24-hr 0.125 0.151 0.190 0.221 0.264 0.299 0.335 0.373 0.427 0.470
(0.115-0.135)(0.140-0.164)(0.175-0.206)(0.203-0.239)(0.242-0.286)(0.273-0.324)(0.305-0.363)(0.338-0.405)(0.384-0.464)(0.421-0.512)
2-day 0.073 0.088 0.111 0.128 0.153 0.172 0.193 0.214 0.244 0.269
(0.068-0.079)(0.082-0.096)(0.102-0.120)(0.118-0.139)(0.140-0.165)(0.158-0.187)(0.176-0.209)(0.194-0.233)(0.220-0.267)(0.240-0.294)
3-day 0.052 0.062 0.077 0.090 0.106 0.120 0.134 0.149 0.169 0.186
(0.048-0.056)(0.058-0.067)(0.072-0.084)(0.083-0.097)(0.098-0.115)(0.110-0.130)(0.123-0.145)(0.135-0.161)(0.153-0.184)(0.168-0.203g
4-day 0.041 0.049 0.061 0.070 0.083 0.094 0.104 0.116 0.132 0.145
(0.038-0.044)(0.046-0.053)(0.056-0.066)(0.065-0.076)(0.077-0.090)(0.086-0.101)(0.096-0.113)(0.106-0.125)(0.120-0.143)(0.131-0.154.
7-day 0.027 0.032 0.039 0.045 0.053 0.059 0.066 0.073 0.082 0.090
(0.025-0.029)(0.030-0.034)(0.037-0.042)(0.042-0.048)(0.049-0.057)(0.055-0.063)(0.061-0.071)(0.067-0.078)(0.075-0.089)(0.082-0.094.
10-day 0.021 0.026 0.031 0.035 0.041 0.045 0.050 0.055 0.061 0.067
(0.020-0.023)(0.024-0.027)(0.029-0.033)(0.033-0.037)(0.038-0.044)(0.042-0.048)(0.046-0.053)(0.051-0.058)(0.056-0.066)(0.061-0.071)
20day 0.014 0.017 0.020 0.023 0.026 0.029 0.031 0.034 0.038 0.041
(0.013-0.015)(0.016-0.018)(0.019-0.021)(0.021-0.024)(0.024-0.028)(0.027-0.030)(0.029-0.033)(0.032-0.036)(0.035-0.040)(0.038-0.044.
30day 0.012 0.014 0.016 0.018 0.020 0.022 0.024 0.026 0.028 0.030
(0.011-0.012)(0.013-0.014)(0.015-0.017)(0.017-0.019)(0.019-0.021)(0.021-0.023)(0.022-0.025)(0.024-0.027)(0.026-0.030)(0.028-0.034.
45day 0.010 0.011 0.013 0.014 0.016 0.017 0.019 0.020 0.022 0.023
(0.009-0.010)(0.011-0.012)(0.012-0.014)(0.014-0.015)(0.015-0.017)(0.016-0.018)(0.018-0.020)(0.019-0.021)(0.020-0.023)(0.021-0.024)
60day 0.009 0.010 0.011 0.013 0.014 0.015 0.016 0.017 0.018 0.019
(0.008-0.009)(0.010-0.011)(0.011-0.012)(0.012-0.013)(0.013-0.015)(0.014-0.016)(0.015-0.017)(0.016-0.018)(0.017-0.019)(0.018-0.020.
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 NOAAAtlas 14 document for more information.
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PF graphical

PDS-based intensity-duration-frequency(IDF)curves
Latitude:34.9797°,Longitude:-80.5233°
101 Average recurrence
., interval
(years)
,Z' 10° - ' - - 2
— 5
4C \ — 10
—2s
• 10-1 \ — 100
a —200
d \�\.. — 500
a \�--,_ — 1000
10-2
r
C C C C a TT T T A T T>.
L A t L L re A N le R A it Ali'
E �E E �E E N nti uS N o -(3 v-o v v vlit -id v
'^ P:, '4 R $ Duration N A A 4 ^ 2 N R a$
101
L
Duration
,Z' 1• 0°
— 5-min —2-day
�d — 10-min —3-day
0 in
—4-day
2 l0-1 — 30-min — 7-day
a. — 60min — 10-day
— 2fir —20-day
—3fir —30-day
— 6-hr —45-day
10_2 — 12-hr — 80-day
— 24-hr
2 5 10 25 50 100 200 500 1000
Average recurrence interval(years)
NOAA Atlas 14,Volume 2,Version 3 Created(GMT):Wed Aug 1612:27:44 2023
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Maps&aerials
Small scale terrain
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100km imbia
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Large scale map

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I_ Department of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
National Water Center
1325 East West Highway
Silver Spring,MD 20910
Questions?:[e-mail]
Disclaimer

USDA United States A product of the National Custom Soil Resource
Department of Cooperative Soil Survey,
Agriculture a joint effort of the United Report for
\ RCS States Department of
Agriculture and other Union County
Federal agencies, State
Natural agencies including the
Resources Agricultural Experiment North Carolina
Conservation Stations, and local
Service participants
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October 20, 2023

Custom Soil Resource Report
Soil Map
N N
551800 551840 551880 551920 551960 552000 552040 552080
34°50'25"N - 34°50'25"N
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551800 551840 551880 551920 551960 552000 552040 552080
3 3
Map Scale:1:1,890 if printed on A portrait(8.5"x 11")sheet.
N Meters
0 25 50 150
Feet
0 50 100 200 300
Map projection:Web Mercator Comer coordinates:WGS84 Edge tics:UTM Zone 17N WGS84
9

Custom Soil Resource Report
MAP LEGEND MAP INFORMATION
Area of Interest(AOI) 14 Spoil Area The soil surveys that comprise your AOI were mapped at
Area of Interest(AOI) 1:24,000.
Q Stony Spot
Soilsit Very Stony Spot
Soil Map Unit Polygons Warning:Soil Map may not be valid at this scale.
Wet Spot
,..,. Soil Map Unit Lines Enlargement of maps beyond the scale of mapping can cause
p Other misunderstandingof the detail of mapping and accuracyof soil
p Soil Map Unit Points pp 9
.• Special Line Features line placement.The maps do not show the small areas of
Special Point Features contrasting soils that could have been shown at a more detailed
Blowout Water Features scale.
-_- Streams and Canals
kg Borrow Pit
Transportation Please rely on the bar scale on each map sheet for map
* clay Spot 1.44 Rails measurements.
0 Closed Depression
o,/ Interstate Highways
Gravel Pit Source of Map: Natural Resources Conservation Service
.r US Routes Web Soil Survey URL:
Gravelly Spot Major Roads Coordinate System: Web Mercator(EPSG:3857)
® Landfill Local Roads Maps from the Web Soil Survey are based on the Web Mercator
• Lava Flow Background projection,which preserves direction and shape but distorts
distance and area.A projection that preserves area,such as the
46 Marsh or swamp Aerial Photography Albers equal-area conic projection,should be used if more
It Mine or Quarry accurate calculations of distance or area are required.
4 Miscellaneous Water This product is generated from the USDA-NRCS certified data as
O Perennial Water of the version date(s)listed below.
v Rock Outcrop Soil Survey Area: Union County, North Carolina
+ Saline Spot Survey Area Data: Version 24,Sep 13,2023
Sandy Spot Soil map units are labeled(as space allows)for map scales
Severely Eroded Spot 1:50,000 or larger.
• Sinkhole Date(s)aerial images were photographed: Apr 17,2022—May
31 Slide or Slip 20,2022
oa Sodic Spot The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
imagery displayed on these maps.As a result,some minor
shifting of map unit boundaries may be evident.
10

Custom Soil Resource Report
Map Unit Legend
Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI
BdB2 Badin channery silty clay loam, 12.4 79.6%
2 to 8 percent slopes,
moderately eroded
GsC Goldston-Badin complex,8 to 0.5 3.0%
15 percent slopes
MhA Misenheimer-Cid complex,0 to 2.7 17.4%
3 percent slopes
Totals for Area of Interest 15.6 100.0%
Map Unit Descriptions
The map units delineated on the detailed soil maps in a soil survey represent the
soils or miscellaneous areas in the survey area. The map unit descriptions, along
with the maps, can be used to determine the composition and properties of a unit.
A map unit delineation on a soil map represents an area dominated by one or more
major kinds of soil or miscellaneous areas. A map unit is identified and named
according to the taxonomic classification of the dominant soils. Within a taxonomic
class there are precisely defined limits for the properties of the soils. On the
landscape, however, the soils are natural phenomena, and they have the
characteristic variability of all natural phenomena. Thus, the range of some
observed properties may extend beyond the limits defined for a taxonomic class.
Areas of soils of a single taxonomic class rarely, if ever, can be mapped without
including areas of other taxonomic classes. Consequently, every map unit is made
up of the soils or miscellaneous areas for which it is named and some minor
components that belong to taxonomic classes other than those of the major soils.
Most minor soils have properties similar to those of the dominant soil or soils in the
map unit, and thus they do not affect use and management. These are called
noncontrasting, or similar, components. They may or may not be mentioned in a
particular map unit description. Other minor components, however, have properties
and behavioral characteristics divergent enough to affect use or to require different
management. These are called contrasting, or dissimilar, components. They
generally are in small areas and could not be mapped separately because of the
scale used. Some small areas of strongly contrasting soils or miscellaneous areas
are identified by a special symbol on the maps. If included in the database for a
given area, the contrasting minor components are identified in the map unit
descriptions along with some characteristics of each. A few areas of minor
components may not have been observed, and consequently they are not
mentioned in the descriptions, especially where the pattern was so complex that it
was impractical to make enough observations to identify all the soils and
miscellaneous areas on the landscape.
The presence of minor components in a map unit in no way diminishes the
usefulness or accuracy of the data. The objective of mapping is not to delineate
pure taxonomic classes but rather to separate the landscape into landforms or
11

Custom Soil Resource Report
landform segments that have similar use and management requirements. The
delineation of such segments on the map provides sufficient information for the
development of resource plans. If intensive use of small areas is planned, however,
onsite investigation is needed to define and locate the soils and miscellaneous
areas.
An identifying symbol precedes the map unit name in the map unit descriptions.
Each description includes general facts about the unit and gives important soil
properties and qualities.
Soils that have profiles that are almost alike make up a soil series. Except for
differences in texture of the surface layer, all the soils of a series have major
horizons that are similar in composition, thickness, and arrangement.
Soils of one series can differ in texture of the surface layer, slope, stoniness,
salinity, degree of erosion, and other characteristics that affect their use. On the
basis of such differences, a soil series is divided into soil phases. Most of the areas
shown on the detailed soil maps are phases of soil series. The name of a soil phase
commonly indicates a feature that affects use or management. For example, Alpha
silt loam, 0 to 2 percent slopes, is a phase of the Alpha series.
Some map units are made up of two or more major soils or miscellaneous areas.
These map units are complexes, associations, or undifferentiated groups.
A complex consists of two or more soils or miscellaneous areas in such an intricate
pattern or in such small areas that they cannot be shown separately on the maps.
The pattern and proportion of the soils or miscellaneous areas are somewhat similar
in all areas. Alpha-Beta complex, 0 to 6 percent slopes, is an example.
An association is made up of two or more geographically associated soils or
miscellaneous areas that are shown as one unit on the maps. Because of present
or anticipated uses of the map units in the survey area, it was not considered
practical or necessary to map the soils or miscellaneous areas separately. The
pattern and relative proportion of the soils or miscellaneous areas are somewhat
similar. Alpha-Beta association, 0 to 2 percent slopes, is an example.
An undifferentiated group is made up of two or more soils or miscellaneous areas
that could be mapped individually but are mapped as one unit because similar
interpretations can be made for use and management. The pattern and proportion
of the soils or miscellaneous areas in a mapped area are not uniform. An area can
be made up of only one of the major soils or miscellaneous areas, or it can be made
up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example.
Some surveys include miscellaneous areas. Such areas have little or no soil
material and support little or no vegetation. Rock outcrop is an example.
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Custom Soil Resource Report
Union County, North Carolina
BdB2—Badin channery silty clay loam, 2 to 8 percent slopes,
moderately eroded
Map Unit Setting
National map unit symbol: 2mx85
Elevation: 200 to 650 feet
Mean annual precipitation: 37 to 60 inches
Mean annual air temperature: 59 to 66 degrees F
Frost-free period: 200 to 240 days
Farmland classification: Farmland of statewide importance
Map Unit Composition
Badin, moderately eroded, and similar soils: 85 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Badin, Moderately Eroded
Setting
Landform: I nterfl uves
Landform position (two-dimensional): Summit
Landform position (three-dimensional): Interfluve
Down-slope shape: Convex
Across-slope shape: Convex
Parent material: Residuum weathered from metavolcanics and/or argillite
Typical profile
Ap- 0 to 6 inches: silty clay loam
Bt- 6 to 20 inches: silty clay
BC-20 to 28 inches: channery silty clay loam
Cr-28 to 42 inches: weathered bedrock
R-42 to 80 inches: unweathered bedrock
Properties and qualities
Slope: 2 to 8 percent
Depth to restrictive feature: 20 to 40 inches to paralithic bedrock; 40 to 80 inches
to lithic bedrock
Drainage class:Well drained
Runoff class: Medium
Capacity of the most limiting layer to transmit water(Ksat):Very low to high (0.00
to 1.98 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Available water supply, 0 to 60 inches: Low(about 4.8 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 2e
Hydrologic Soil Group: C
Ecological site: F136XY830NC -Acidic upland forest, depth restriction, dry-moist
Hydric soil rating: No
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Custom Soil Resource Report
GsC—Goldston-Badin complex, 8 to 15 percent slopes
Map Unit Setting
National map unit symbol: 3w12
Elevation: 200 to 650 feet
Mean annual precipitation: 37 to 60 inches
Mean annual air temperature: 59 to 66 degrees F
Frost-free period: 200 to 240 days
Farmland classification: Not prime farmland
Map Unit Composition
Goldston and similar soils: 55 percent
Badin and similar soils: 30 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Goldston
Setting
Landform: Hillslopes on ridges
Landform position (two-dimensional): Backslope
Landform position (three-dimensional): Side slope
Down-slope shape: Linear
Across-slope shape: Convex
Parent material: Residuum weathered from metavolcanics and/or argillite
Typical profile
A -0 to 7 inches: very channery silt loam
Bw- 7 to 11 inches: very channery silt loam
Cr- 11 to 23 inches: weathered bedrock
R-23 to 80 inches: unweathered bedrock
Properties and qualities
Slope: 8 to 15 percent
Depth to restrictive feature: 10 to 20 inches to paralithic bedrock; 20 to 40 inches
to lithic bedrock
Drainage class:Well drained
Runoff class: Medium
Capacity of the most limiting layer to transmit water(Ksat):Very low to high (0.00
to 1.98 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Available water supply, 0 to 60 inches: Very low(about 1.2 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 4s
Hydrologic Soil Group: D
Ecological site: F136XY880GA-Acidic high hills and isolated ridges, depth
restriction, dry
Hydric soil rating: No
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Custom Soil Resource Report
Description of Badin
Setting
Landform: Hillslopes on ridges
Landform position (two-dimensional): Backslope
Landform position (three-dimensional): Side slope
Down-slope shape: Linear
Across-slope shape: Convex
Parent material: Residuum weathered from metavolcanics and/or argillite
Typical profile
A -0 to 2 inches: channery silt loam
E-2 to 9 inches: channery silt loam
Bt1 -9 to 21 inches: channery silty clay loam
Bt2-21 to 36 inches: silty clay
Cr-36 to 45 inches: weathered bedrock
R-45 to 80 inches: unweathered bedrock
Properties and qualities
Slope: 8 to 15 percent
Depth to restrictive feature: 20 to 40 inches to paralithic bedrock; 40 to 80 inches
to lithic bedrock
Drainage class:Well drained
Runoff class: Medium
Capacity of the most limiting layer to transmit water(Ksat):Very low to high (0.00
to 1.98 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Available water supply, 0 to 60 inches: Moderate (about 6.1 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 3e
Hydrologic Soil Group: C
Ecological site: F136XY830NC -Acidic upland forest, depth restriction, dry-moist
Hydric soil rating: No
MhA—Misenheimer-Cid complex, 0 to 3 percent slopes
Map Unit Setting
National map unit symbol: 3w17
Elevation: 200 to 650 feet
Mean annual precipitation: 37 to 60 inches
Mean annual air temperature: 59 to 66 degrees F
Frost-free period: 200 to 240 days
Farmland classification: Not prime farmland
Map Unit Composition
Misenheimer and similar soils: 60 percent
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Custom Soil Resource Report
Cid and similar soils: 25 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Misenheimer
Setting
Landform: Interfluves
Landform position (two-dimensional): Summit
Down-slope shape: Convex
Across-slope shape: Convex
Parent material: Residuum weathered from metavolcanics and/or residuum
weathered from argillite
Typical profile
A -0 to 2 inches: channery silt loam
E-2 to 7 inches: channery silt loam
Bw- 7 to 14 inches: channery silt loam
Cr- 14 to 25 inches: weathered bedrock
R-25 to 80 inches: unweathered bedrock
Properties and qualities
Slope: 0 to 3 percent
Depth to restrictive feature: 10 to 20 inches to paralithic bedrock; 20 to 40 inches
to lithic bedrock
Drainage class: Moderately well drained
Runoff class: Very high
Capacity of the most limiting layer to transmit water(Ksat):Very low to high (0.00
to 1.98 in/hr)
Depth to water table:About 12 to 18 inches
Frequency of flooding: None
Frequency of ponding: None
Available water supply, 0 to 60 inches: Very low(about 2.1 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 3w
Hydrologic Soil Group: C/D
Ecological site: F136XY815NC -Acidic upland woodland, depth restriction,
seasonally wet and dry
Hydric soil rating: No
Description of Cid
Setting
Landform: Interfluves
Landform position (two-dimensional): Summit
Down-slope shape: Convex
Across-slope shape: Convex
Parent material: Residuum weathered from metavolcanics and/or residuum
weathered from argillite
Typical profile
Ap- 0 to 9 inches: channery silt loam
Bt- 9 to 22 inches: silty clay loam
BC-22 to 27 inches: channery silty clay
Cr-27 to 32 inches: weathered bedrock
R-32 to 80 inches: unweathered bedrock
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Custom Soil Resource Report
Properties and qualities
Slope: 0 to 3 percent
Depth to restrictive feature: 20 to 40 inches to paralithic bedrock; 20 to 40 inches
to lithic bedrock
Drainage class: Moderately well drained
Runoff class: Low
Capacity of the most limiting layer to transmit water(Ksat):Very low to moderately
high (0.00 to 0.20 in/hr)
Depth to water table:About 12 to 30 inches
Frequency of flooding: None
Frequency of ponding: None
Available water supply, 0 to 60 inches: Low (about 4.0 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 2w
Hydrologic Soil Group: D
Ecological site: F136XY815NC -Acidic upland woodland, depth restriction,
seasonally wet and dry
Hydric soil rating: No
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