20070231 Ver 1_Stormwater Info_20070905

10133 Sherrill Boulevard, Suite 200
Knoxville, TN 37932
[phone]
[phone] Fax
VIA Mail
o~-p~,~t
TO: Annette Lucas, Environmental Engineer III DATE:
NC Division of Water Quality FILE NO.
2321 Crabtree Boulevard
Raleigh, NC 27604
B •/'''"~ BARGE
,~~I~~C WAG[3ONER
1\ SUMNER &
CANNON, INC.
September 4, 2007
3323801
SUBJECT: 07-0231 Stormwater Management Package, Honda Aircraft Co.,
Greensboro
TRANSMITTED HEREWITH ARE THE FOLLOWING:
a~~~~~~~
s~P ~ ~- zoo ~
°~"~-w~rF
~:4arro ;r~~,°~~irr
~RAA-Cy
NO.
COPIES
DATE
DESCRIPTION
1 9/04/07 401 Extended D Detention Worksheet
1 8/30/07 Stormwater Detention Pond Calculations
1 8/27/07 Civil Plan Sheets, % Size

REMARKS Information as requested. Please contact our office with any comments or questions.
COPY TO:
File
BARGE, WAGGONER, SUMNERAND CANNON, INC.
BY ~~
Boles
F:\33\33238\3323801\CivilWnnetteLucas 3323801 tm001.doc

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~ ~~~~~~
SAP 5 - 2007
DEPIR -WAVER QUALITY
WETIANQS a4Q STOftMt+!ATER BRANCH
August 29, 2007
Revision 7
CONSTRUCTION SITE STORMWATER
DETENTION POND CALCULATIONS
SOUTHWEST POND
For
HONDA AIRCRAFT COMPANY
NEW CORPORATE CAMPUS
` ~ CARPI '~
' SEAL
••lJ Z 69
y ~ 7.
~., qN E i~ ``..
Prepared For:
American Honda Motor Company, Inc.
6430 Ballinger Road
Greensboro, NC 27410
Prepared By:
Barge, Waggoner, Sumner and Cannon, Inc.
10133 Sherrill Boulevard, Suite 200
Knoxville, Tennessee 37932
BWSC 33238-01

Project No. DWQ ~~~~Z3
DIVISION OF WATER QUALITY
401 EXTENDED DRY DETENTION BASIN WORKSHEET
DWQ Stormwater Management Plan Review:
At a minimum, a complete Stormwater management plan submittal includes a worksheet for each BMP, design calculations, plans and
specifications showing all BMPs and outlet structure details, a detailed drainage plan and a fully executed operation and maintenance
agreement. An incomplete submittal package will result in a request for additional information and will substantially delay final review and
approval of the project
PROJECT INFORMATION (please complete the following information):
Project Name
Contact Person
~O.nOa I¢~rCro.t'~ ~C~~•i~7~ l7~'CQ...S~OO~~ ~C"
yVwt~.» rNa~.s ~; ~E. Phone Number:
For projects with multiple basins, specify which basin this workshee_ t applies to:_
Drainage Area:19' acres Percent Impervious Area:_$
II. REQUIRED ITEMS CHECKLIST
- •c~i v
The following checklist outlines design requirements per the Stormwater Best Management Practices Manual (N.C. Department of
Environment, Health and Natural Resources, November 1995) and Administrative Code Section: 15 A NCAC 2H .1008. Initial in the space
provided to indicate the following design requirements have been met and supporting documentation is attached. If a requirement has not
been met, attach an explanation of why.
Applicants Initials
_Either capture runoff from 1 yr., 24 hour storm and release over a 48 hour period, or' s~~ Ca/c» la'~• aw.-s
/ capture runoff from 1 inch storm and draw down over a period of 2 to 5 days.
Please provide routing for 1 yr. 24 hr. event or volume from 1 inch rain
/ The basin length to width ratio is greater than 3:1.
-The basin side slopes are no steeper than 3:1.
/ A small permanent pool at outlet orifice is provided to reduce clogging.
An emergency drain to completely empty the basin is provided. U~ F i2cq,w:~ ~~c.a- e ~• l c~-(~..F-t"as
Vegetation plan prepared is specified on plans. SEu:. S~es~ ~~~-~-*tO~S
Basin to be stabilized within 14 days of construction is specified.Scc. ~.ec.~~'; c.p..{~~°^t5
~ Sediment storage (20% of detention volume) in addition to detention volume is provided. r12,S'i Z ~».>Ft• excess
/ Inlet and outlet erosion control measures to prevent scour are provided.
/ Additional treatment to meet the 85% TSS removal efficiency is provided.
/ Access for clean-out and maintenance is provided.
~/ Inlet plunge pool or other energy dissipation is provided.
/' Forebay is provided to capture sediment and minimize clean-out problems. S-.st do sf+-»~ ~'"`s.
/ Uncompacted natural soils are utilized to promote vegetation and reduce sedimentation.
/' Seasonal high water table is at least 1 foot below bottom of basin.
r If used as a temporary sediment basin, plans indicate clean-out prior to final operation.

A site specific operation and maintenance plan with the following provisions is provided kj;~ ~e ~~o,,~ ~,~~, ~- 1a.1-c¢.. ~(~e .
The 0&M agreement is signed by the responsible party and notarized. ~~~

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Existing Conditions
The existing site conditions were determined from a site field survey by McKim and
Creed Surveyors and were supplied to BWSC by the developer. The approximately 80
acre site is a previously undeveloped lease parcel owned by the Piedmont Triad Airport
Authority that is southeast and immediately adjacent to the Piedmont Triad International
Airport. The site was previously used as pasture and forest. Soils map information was
from the U.S. Department of Agriculture, Natural Resources Conservation Service web
site (http://websoilsurvey.nres.usda.gov/app/WebSoilSurve ~}_aspx). A copy of the soils
mapping is included. The soil survey shows primarily sandy clay loams which are
classed as type C soils by for the SCS method.
Proposed Conditions
The site is proposed to be used as an aircraft research and development (R&D), and
production facility. The current planned facility will contain a corporate office building
and a R&D facility. The production facility is planned for a future phase. The site
topography for the area planned for the offices and R&D building slopes to the southwest
to an unnamed tributary of Horse Pen Creek. This area will drain through a piped
collection system, into a detention pond and to the stream. The pond is intended to serve
only this phase of the development. The future production facility area drains to the
southeast to another unnamed tributary of Horse Pen Creek. The drainage for the
production facility area has not been designed.
Methods and Assumptions
The hydrology and hydraulics were simulated in the Bentley CivilStorm software, V8
XM Edition. An SCS approach was used for the curve numbers and times of
concentration. All catchbasins were assumed to be full capture type with no bypass
assumed. Structure head losses were calculated using an HEC-22 approach. The
detention pond was designed as a dry pond in order to avoid classification by the Federal
Aviation Administration as a hazardous wildlife attractant (Section 3, FAA Advisory
Circular AC No. 150/5200-33) and the resulting wildlife hazard mitigation techniques.
Results
The stage-storage relationship for the detention pond was calculated using Microsoft
Excel and an average end area approach. Data and a graph are enclosed. The required 1
year storm storage volume for water quality was calculated using Mathcad v13 by
Mathsoft Engineering and Education, Inc. The volume required was 42,771 cubic feet
and corresponds to an elevation of 852.70 in the proposed pond. The pond surface area at
this elevation was calculated at 22,733.5 square feet. Using the approach from page 60 of
the City of Greensboro Stormwater Management Manual and assuming a 90% desired
removal efficiency, a particle size of 4.4 microns was calculated as the minimum particle
size meeting the 90% removal efficiency.

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1 ear 2 ear 10 ear 25 ear 100 ear
Pre-Development
Flow, cfs
21.08
39.88
90.59
123.41
174.81
Post-Development
Flow, cfs
13.11
25.84
66.10
98.45
142.85
Pond Water
Surface Elev., ft
853.37
854.02
854.98
855.29
855.72
Freeboard, ft 4.63 3.98 3.02 2.71 2.28
Additionally, the one year event storm was routed and results are included for an
extended period of 5 days. The calculated water surface elevations in the pond are
850.03 and 849.69 at the start of the fourth day and the fifth day respectively. Both of
these elevations are above the 849.50 invert of the 2" outlet. Closer review shows the
' pond at 849.69 at around 4.8 days which is assumed to be the final drain down point.
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Soil Map-Guilford County, North Carolina
N Meters
A 0 100 200 400 600
Feet
0 450 900 1,800 2,7D0
~~pA Natural Resources Web Soil Survey 2.0 8!1712007
Conservation Service National Cooperative Soil Survey Page 1 of 3

r ^r rr rr rr r~ r r r rr rr Ir rr rr r~ 01~ rr r rr
Soil Map-Guilford County, North Carolina
MAP LEGEND
MAP INFORMATION
Area of Interest (AOI) ,(~ very Stony spot Original soil survey map sheets were prepared at publication scale.
Area of Interest (A01) .
t S
t Viewing scale and printing scale, however, may vary from the
~
We
po original. Please rely on the bar scale on each map sheet for proper
Soils ~ Other map measurements.
,... _
Soil Map Units

Special Line Features

Source of Map: Natural Resources Conservation Service
Special Point Features Gully Web Soil Survey URL: http://websoilsurvey.nres.usda.gov
rty Blowout f Coordinate System: UTM Zone 17N
Short Steep Slope
~ ''
® Borrow Pit This product is generated from the USDA-NRCS certified data as of
. - Other the version date(s) listed below.
X Clay Spot
Political Features Soil Survey Area: Guilford County, North Carolina
~ Closed Depression Municipalities Survey Area Data: Version 9, Jan 19, 2007
,~ Gravel Pit Cities
Date(s) aerial images were photographed: 1993
Gravelly Spot ~ Urban Areas
The orthophoto or other base map on which the soil lines were
Landfill water Features compiled and digitized probably differs from the background
Oceans imagery displayed on these maps. As a result, some minor shifting
~ Lava Flow of map unit boundaries may be evident.
,~ Marsh r-•.+ Streams and Canals
~ Mine or Quarry Transportation
+++ Rails
~ Miscellaneous Water
Roads
Perennial Water ~,~,,,, interstate Highways
yr Rock Outcrop ,,,,, US Routes
+ Saline Spot State Highways
.. Sandy Spot r.v Local Roads
Severely Eroded Spot Other Roads
,l} Sinkhole
]~y Slide or Slip
Sodic Spot
Spoil Area
~ Stony Spot
Natural Resources Web Soil Survey 2.0 8/17/2007
Conservation Service National Cooperative Soil Survey Page 2 of 3

Soil Map-Guilford County, North Carolina

1

Map Unit Legend
Guilford County, North Carolina (NC081)
Map Unit Symbol Map Unit Name '`.Acres in AOf Percent of AOC
CcC Cecil sandy loam, 6 to 10
percent slopes 2.4 0.4%
Ce62 Cecil sandy clay loam, 2 to 6
percent slopes, eroded 7.4 1.3%
CeC2 Cecil sandy clay loam, 6 to 10
percent slopes, eroded 0.2 0.0%
Ch Chewacla sandy loam 7.7 1.3%
Co Congaree loam 41.0 7.0%
En6 Enon fine sandy loam, 2 to 6
percent slopes 6.0 1.0%
EnC Enon fine sandy loam, 6 to 10
percent slopes 13.7 2.3%
EnD Enon fine sandy loam, 10 to 15
percent slopes 4.9 0.8%
Ir6 Iredell fine sandy loam, 0 to 4
percent slopes 21.2 3.6%
McD2 Madison clay loam, 10 to 15
percent slopes, eroded 5.6 1.0%
McE2 Madison clay loam, 15 to 25
percent slopes, eroded 8.5 1.4%
Mh62 Mecklenburg sandy clay loam, 2
to 6 percent slopes, eroded 235.7 40.3%
MhC2 Mecklenburg sandy clay loam, 6
to 10 percent slopes, eroded 113.0 19.3%
Ur Urban land 117.1 20.0%
W Water 0.8 0.1
Totals for Area of Interest (AO1)

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585.4
100.0%
U~~ Natural Resources Web Soil Survey 2.0 8/17/2007
Conservation Service National Cooperative Soil Survey Page 3 of 3

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Stage-Storage Data for Left Detention Pond, Honda Aeronautics, Greensboro, NC
Elevation Contour Area (sq ft) Storage (cu.ft.) Cum. Storage (cu.ft.)
849.5 1781 0.0 0.0
850 4339.2 1530.1 1530.1
851 13504.9 8922.1 10452.1
852 21282.6 17393.8 27845.9
853 23355.3 22319.0 50164.8
854 25484.5 24419.9 74584.7
855 27670.2 26577.4 101162.1
856 29912.5 28791.4 129953.4
857 32211.3 31061.9 161015.3
858 34566.6 33389.0 194404.3
Stage-Storage Data for Detention Pond, Honda Aeronautics,
Greensboro, NC
200000
180000
160000
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140000
.-,
~ 120000

c
~= 100000
m
R
.0 80000
N
60000
40000
20000
849
0 ! * ~` '
850 851 852 853 854 855 856 857 858
Elevation

Stuart Hen P.E. Honda Aircraft Facilit ,Greensboro, NC 1 of 3
ry, Y
8/24/2007 33238-01 PondCalcs_rev1.xmcd
1
First flush basin calculation 849.5 0
Find Volume of Rainfall
.area of site is: Area := 14.06•acre % impervious I := 85
850
1530.1
by Schuler Method: R~ := 0.05 + 0.009•I R~ = 0.815 851 10452.1
first flush basin volume is: Vol := R~•r•Area Vol = 41595.8 ft3 852 27845.9
853 50164.8
Find elevation for required volume input data to matrix: Stage
Storage :_
_
`1)
(~ 854 74584.7
n := rows(Stage_Storage)
Y := Stage_Storage
Set variables: X := Stage_Storage 8S5 101162.1
enter degree of polynomial to fit: k := 4
856
129953.4
t number of data points: n = 10 regress data: z := regress(x,Y,k)
g57 161015.3
polynomial fitting function: fit(x) := interp(z,X,Y,x)
Set variable: coeffs := submatrix(z, 3 , length(z) - 1, 0, 0)
858
194404.3
coefficient values are coeffsT = (1.62 x 1013 -7.581 x 1010 1.33 X 108 -1.037 x 105 30.326 )
2
~(fit(X) - mean(Y))

R2 value:
Plots
2.105
1.8.105

' 1.6.105
S
1.4 •10
1
2 •105
w .
U
1 •105

0 8 .104

6.104
1 4.104
2.104

= 0.99998295
~(Y - mean(Y))2
Degrees of freedom: n - k -1 = 5
Polynomial Regression of Y on X
849 849.5 850 850.5 851 851.5 852 852.5 853 853.5 854 854.5 855 855.5 856 856.5 857 857.5 858
Elevation (in feet)
~- -1- X-Y data
' Least-squares fit

Stuart Hen P.E.
ry~
' 8/24/2007
500
400
' 300
200
100
1 0
-100
X00
-300
-400
-500
Honda Aircraft Facility, Greensboro, NC
33238-01
Residual Plot
2of3
PondCalcs_rev1.xmcd
849 850 851 852 853 854 855 856 857 858
first flush volume req'd. (see calc. above): vo1 = 41595.81 •ft3 remove units: vo1 := vol
ft3
guess value for elevation: c := 852 ToL := 10 12
solve for elevation: Given vo1 = interp(z,x,Y,c) c < 855
' c := Find(c) c = 852.647869
therefore, use: fit(vol) := interp(z, x, Y,16.789~ fit(vol) = 1.5.1013
therefore, use: fit(vol) := interp~z,x,Y,852.7~ fit(vol) = 42771.17
Stage/storage relationship for pond shows required volume at approx. elevation of 852.65. Therefore, the
volume provided at elev. 852.7, 42771.17 cubic feet, is more than required.

Stuart Hen P.E. Honda Aircraft Facility, Greensboro, NC 3 of 3
ry,
8/24/2007 33238-01 PondCalcs_rev1.xmcd
3
define constants: fi's := ft cfs := ft
s s
vo1 := fit(vol)•ft3 vol = 42771.17 ft3 required 1 year storm volume (see calculation above)
' and surface area at elevation 852.7 22733.5•ft2
p ~ :_
yol Q° = 0.495 cfs from page 60 of City of Greensboro Stormwater Management Manual
Q° :_
24•hr
set desired trap efficiency: E := 90•%
set guess value for particle settling velocity: w := 0.0004• ft
s
calculate particle settling velocity provided in pond for 90% efficiency:
Given
' ~ _ -Q° • ln(1 - E) from page 60 of City of Greensboro Stormwater Management Manual
w
w := Find(w) w = 0.00005 fps
set specific weight and kinematic viscosity for water at 60 degrees F.
r 2
yf:= 62.37• ib µ := 2.359.10 5• tb•s ~ := 1.217.10 5• ft
ft3 ft2 s
set particle specific gravity (quartz assumed): sG := 2.65
set guess value for particle size: dia := 20•micron
calculate 90% efficiency particle size based on pond settling velocity provided:
Given
1 dia2• Stokes relationship, eqn. 7.4, Design Hydrology and Sedimentology for
w = -• g•(sG - 1~ Small Catchments, C.T. Haan, B.J. Barfield and J.C. Hayes, Academic
18 ~ Press, Inc., San Diego, CA, 1994.
dia := Find(dia) dia = 4.384 micron 5 microns is break between silt & clay by AASHTO T-88
check that Reynolds number < 0.5
eqn. 7.3, Design Hydrolo~y and Sedimentolo~ for Small
' w•dia Catchments, C.T. Haan, B.J. Barfield and J.C. Hayes,
Re '= 5.926 x 10 5
v ~ = Academic Press, Inc., San Diego, CA, 1994.
' therefore, pond will collect sediment down to 4.4 microns at 90%. or greater efficiency

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Control Structure
Detailed Report:
Control Structure
<General>
ID 204
Label Control Structure
Outlet Structure
Maximum Iterations 30
Minimum Hw Tolerance 0.01 ft
Maximum Hw Tolerance 0.50 ft
Minimum Tw Tolerance 0.01 ft
Maximum Tw Tolerance• 0.50 ft
Minimum Q Tolerance 0.001 ft'/s
Maximum Q Tolerance 10.000 ft'/s
Aircraft_Left_PostDev2.csd Bentley Systems, Inc. Haestad Methods
Solution Center
8/24/2007 27 Siemon Company Drive Suite 200 W
Watertown, CT 06795 USA +t_203-755-1666
Bentley CivilStorm V8 XM Edition
[08.09.023.25]
Page 1 of 2

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Control Structure
Detailed Report:
Control Structure
Outlet Structure
Orifice
Flow Direction Forward Flow Only
Elevation 852.70 ft
# of Openings 2
Orifice Coefficient 0.6
Orifice Circular Orifice
Orifice Diameter 24.0 in
Riser
Flow Direction Forward Flow Only
Elevation 854.70 ft
Weir Coefficient 2.60 US
Orifice Coefficient 0.6
Riser Stand Pipe
Diameter 60.0 in
Transition Elevation 0.00 ft
Transition Height 0.00 ft
K Reverse 1.0
Orifice
Flow Direction Forward Flow Only
Elevation 849.50 ft
# of Openings 1
Orifice Coefficient p.9
Orifice Circular Orifice
Orifice Diameter 2.0 in
Aircraft_Left_PostDev2.csd Bentley Systems, Inc. Haestad Methods
Solution Center
8/24/2007 27 Siemon Company Drive Suite 200 W
Watertown, CT 06795 USA +t_203-755-1666
Bentley CivilStorm V8 XM Edition
[08.09.023.25]
Page 2 of 2

Stuart Hen , P.E.
ry
8!24/2007

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Honda Aeronautics, Greensboro, NC
33238-01
1 of 1
Left Pond
Calculate volume of concrete for riser base in detention pond to prevent flotation.
find volume of riser:
riser invert and crest elevations are: crest := 854.7•ft invert := 849.5•ft
riser inside diameter is: ID := 60•in
ID
riser outside diameter is: OD := ID + 2• - + 1 •in OD = 72•in
12
riser bottom thickness is: bottom := 8•in
find possible riser submerged height H := crest -invert H = 5.2• ft
2
find riser inside volume: riser,,o1:= "•ID •x riservol = 102.1•ft3
4
ASSUMED: -weight of water = 62.41bs/cf
set variable: y := 62.4• lb •
ft3
find bouyant force: Fbouyant ~= riservol•Y Fbouyant = 6371.15 • lb
ASSUMED: -weight of concrete = 40001bs/cu.yd.
lb
set variable: wconc := 4000• d3 change units:
Y
Find equivalent weight of concrete:
lb
Wequiv ~_ ~'~'conc - Y Wequiv = 85.75' 3
ft
ASSUMED: -factor of safety = 1.1
Wequiv lb
1.1 ft3
find volume of concrete in riser bottom and sides:
~•OD2
bottom: vbottom ~_ •bottom
4
~•OD2 7c•ID2
S1deS: 'sides ~_ - 'H
4 4
eliminate volume of holes:
Vholes ~= 4 •~(2•in)2 + 2•(24•in)2]•6•in
total: vriser ~= vbottom ~" Vsides - tholes
~'conc = 148.15 • lb
ft3
vbottom = 18.85•ft3
'sides = 44.92•ft3
Wholes = 3.15 •ft3
vriser = 60.62• ft3
find required additional concrete volume:
Fbouyant
Volreq := W - wriser VolCeq = 21.11•ft3
ASSUMED: -additional volume attained by pouring concrete in bottom of base:
Volreq
Concretedepth ~_
n• ID2
4
Concretedepd, = 12.90•in Therefore, fill base with 18" min.concrete

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Storm Event Detailed
Report: 1 yr
<General>
Label 1yr
Notes
Rainfall
Storm Event Data Type Depth
Start Time 0.0 hours
Increment 0.1 hours
End Time 24.0 hours
Storm Event Depth Type Cumulative
Aircraft_Left_PostDev2.csd Bentley Systems, Inc. Haestad Methods
Solution Center
8/16/2007 27 Siemon Company Drive Suite 200 W
Watertown, CT 06795 USA [phone]
Bentley CivilStorm V8 XM Edition
[08.09.023.25]
Page 1 of 7

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Storm Event Detailed
Report: 1 yr
Rainfall
Time (hours)
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
Aircraft_Left PostDev2.csd Bentley Systems, Inc. Haestad Methods
Solution Center
8/16/2007 27 Siemon Company Drive Suite 200 W
Watertown, CT 06795 USA [phone]
Depth (in)
0.000
0.003
0.006
0.008
0.011
0.014
0.017
0.020
0.023
0.026
0.029
0.032
0.035
0.038
0.041
0.044
0.047
0.051
0.054
0.057
0.060
0.064
0.067
0.070
0.074
0.077
0.081
0.084
0.087
0.091
0.095
0.098
0.102
0.105
0.109
0.113
0.116
0.120
0.124
0.128
Bentley CivilStorm V8 XM Edition
[08.09.023.25)
Page 2 of 7

1
Storm Event Detailed
Report: 1 yr
Rainfall
Time ('hours)
4.0
' 4.1
4.2
4.3
4.4
4.5
' 4.6
4.7
4.8
4.9
5.0
5.1
' 5.2
5.3
5.4
5.5
5.6
5.7
5.8
5.9
' 6.0
6.1
6.2
' 6.3
6.4
6.5
' 6.6
6.7
6.8
6.9
7.0
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
8.0
Aircraft_Left PostDev2.csd Bentley Systems, Inc. Haestad Methods
Solution Center
8/16/2007 27 Siemon Company Drive Suite 200 W
Watertown, CT 06795 USA [phone]
Depth (n)
0.132
0.135
0.139
0.143
0.147
0.151
0.156
0.160
0.164
0.168
0.173
0.177
0.181
0.186
0.191
0.195
0.200
0.205
0.209
0.214
0.219
0.224
0.229
0.234
0.239
0.245
0.250
0.255
0.260
0.266
0.271
0.277
0.282
0.288
0.294
0.299
0.305
0.311
0.317
0.323
0.329
Bentley CivilStorm V8 XM Edition
[08.09.023.25]
Page 3 of 7

Storm Event Detailed
' Report: 1 yr
Rainfall

Time {hours) Depth (in)
8.1 0.335
8.2 0.341
8.3 0.348
8.4 0.355
' 8.5 0.362
8.6 0.370
8.7
8.8 0.378
0.386
8.9 0.394
9.0 0.403
' 9.1 0.412
9.2 0.420
' 9.3 0.429
9.4 0.438
9.5 0.447
' 9.6 0.456
9.7 0.465
9.8 0.475
' 9.9 0.485
10.0 0.496
10.1 0.507
10.2 0.519
10.3 0.532
10.4 0.545
' 10.5 0.559
10.6 0.574
10.7 0.590
' 10.8 0.607
10.9 0.625
11.0 0.644
11.1 0.665
11.2 0.689
11.3 0.715
11.4 0.744
11.5 0.775
' 11.6 0.841
11.7 0.971
11.8 1.180
11.9 1.556
12.0 1.817
12.1 1.869
Aircraft left_PostDev2.csd Bentley Systems, Inc. Haestad Methods Bentley CivilStorm V8 XM Edition
Solution Center [08.09.023.25]
8/16/2007 27 Siemon Company Drive Suite 200 W Page 4 of 7
Watertown, CT 06795 USA [phone]

1
1
1
1
1
1
1
1
1
1
1
1
1
1
Storm Event Detailed
Report: 1 yr
Rainfall
Time (hours)
12.2
12.3
12.4
12.5
12.6
12.7
12.8
12.9
13.0
13.1
13.2
13.3
13.4
13.5
13.6
13.7
13.8
13.9
14.0
14.1
14.2
14.3
14.4
14.5
14.6
14.7
14.8
14.9
15.0
15.1
15.2
15.3
15.4
15.5
15.6
15.7
15.8
15.9
16.0
16.1
16.2
Aircraft_Left_PostDev2.csd Bentley Systems, Inc. Haestad Methods
Solution Center
8/16/2007 27 Siemon Company Drive Suite 200 W
Watertown, CT 06795 USA [phone]
Depth (in)
1.914
1.954
1.987
2.014
2.037
2.059
2.079
2.098
2.115
2.132
2.147
2.162
2.176
2.189
2.202
2.214
2.225
2.236
2.247
2.257
2.267
2.276
2.286
2.295
2.304
2.313
2.322
2.330
2.339
2.347
2.355
2.362
2.370
2.377
2.384
2.391
2.398
2.405
2.411
2.417
2.424
Bentley CivilStorm V8 XM Edition
[08.09.023.25]
Page 5 of 7

1
1
i
Y
1
1

Rainfall
Aircraft Left_PostDev2.csd
8/16/2007
Storm Event Detailed
Report: 1 yr
Time (hours) Depth (n)
16.3 2.430
16.4 2.436
16.5 2.442
16.6 2.448
16.7 2.454
16.8 2.459
16.9 2.465
17.0 2.471
17.1 2.476
17.2 2.482
17.3 2.487
17.4 2.493
17.5 2.498
17.6 2.503
17.7 2.508
17.8 2.514
17.9 2.519
18.0 2.524
18.1 2.528
18.2 2.533
18.3 2.538
18.4 2.543
18.5 2.547
18.6 2.552
18.7 2.556
18.8 2.561
18.9 2.565
19.0 2.569
19.1 2.574
19.2 2.578
19.3 2.582
19.4 2.586
19.5 2.590
19.6 2.594
19.7 2.597
19.8 2.601
19.9 2.605
20.0 2.608
20.1 2.612
20.2 2.616
20.3 2.619
Bentley Systems, Inc. Haestad Methods Bentley CivilStorm V8 XM Edition
Solution Center [08.09.023.25]
27 Siemon Company Drive Suite 200 W Page 6 of 7
Watertown, CT 06795 USA [phone]

Storm Event Detailed
i Report: 1 yr
Rainfall
Time (hours}
20.4
20.5
20.6
20.7
20.8
20.9
21.0
21.1
21.2
21.3
21.4
21.5
21.6
21.7
21.8
1 21.9
22.0
' 22.1
22.2
22.3
22.4
22.5
22.6
22.7
22.8
22.9
23.0
23.1
23.2
23.3
23.4
23.5
23.6
23.7
23.8
23.9
24.0
Aircraft_Left_PostDev2.csd Bentley Systems, Inc. Haestad Methods
Solution Center
8/16/2007 27 Siemon Company Drive Suite 200 W
Watertown, CT 06795 USA [phone]
Depth (in)
2.623
2.626
2.630
2.633
2.637
2.640
2.643
2.647
2.650
2.654
2.657
2.660
2.664
2.667
2.670
2.674
2.677
2.680
2.684
2.687
2.690
2.693
2.696
2.700
2.703
2.706
2.709
2.712
2.715
2.719
2.722
2.725
2.728
2.731
2.734
2.737
2.740
Bentley CivilStorm VS XM Edition
[08.09.023.25]
Page 7 of 7

1
1
1
1
1
1
1
1
1
f
1
1
1
1
1
1
Storm Event Detailed
Report: 2yr
<General>
Label 2yr
Notes
Rainfall.
Storm Event Data Type Depth
Start Time 0.0 hours
Increment 0.1 hours
End Time 24.0 hours
Storm Event Depth Type Cumulative
Aircraft_Left PostDev2.csd Bentley Systems, Inc. Haestad Methods
Solution Center
8/16/2007 27 Siemon Company Drive Suite 200 W
Watertown, CT 06795 USA [phone]
Bentley CivilStorm V6 XM Edition
[08.09.023.25]
Page 1 of 7

1
1
1
1
1
t
1
1
1
1
1
t
1
1
1
1
1
Storm Event Detailed
Report: 2yr
Rainfall
Time (hours)
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
Aircraft_Left PostDev2.csd Bentley Systems, Inc. Haestad Methods
Solution Center
8/16/2007 27 Siemon Company Drive Suite 200 W
Watertown, CT 06795 USA [phone]
Denth (ini
0.000
0.004
0.007
0.011
0.014
0.018
0.022
0.025
0.029
0.033
0.037
0.041
0.045
0.048
0.052
0.056
0.060
0.065
0.069
0.073
0.077
0.081
0.085
0.090
0.094
0.098
0.103
0.107
0.112
0.116
0.121
0.125
0.130
0.135
0.139
0.144
0.149
0.153
0.158
0.163
Bentley CivilStorm V8 XM Edition
[08.09.023.25]
Page 2 of 7

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Rainfall
Time (hours]
Ai rcraft_Left_PostDev2. csd
8/16/2007
Storm Event Detailed
Report: 2yr
Depth (inj
4.0 0.168
4.1 0.173
4.2 0.178
4.3 0.183
4.4 0.188
4.5 0.193
4.6 0.199
4.7 0.204
4.8 0.209
4.9 0.215
5.0 0.221
5.1 0.226
5.2 0.232
5.3 0.238
5.4 0.243
5.5 0.249
5.6 0.255
5.7 0.261
5.8 0.268
5.9 0.274
6.0 0.280
6.1 0.286
6.2 0.293
6.3 0.299
6.4 0.306
6.5 0.312
6.6 0.319
6.7 0.326
6.8 0.333
6.9 0.340
7.0 0.346
7.1 0.354
7.2 0.361
7.3 0.368
7.4 0.375
7.5 0.382
7.6 0.390
7.7 0.397
7.8 0.405
7.9 0.412
8.0 0.420
Bentley Systems, Inc. Haestad Methods Bentley CivilStorm V8 XM Edition
Solution Center [08.09.023.25]
27 Siemon Company Drive Suite 200 W Page 3 of 7
Watertown, CT 06795 USA +x_203-755-1666

t
1
1
1
1
1
1
1
1
Rainfall
Ai rcraft_Left_PostDev2. csd
8/16/2007
Time (hours)
Storm Event Detailed
Report: 2yr
8.1
8.2
8.3
8.4
8.5
8.6
8.7
8.8
8.9
9.0
9.1
9.2
9.3
9.4
9.5
9.6
9.7
9.8
9.9
10.0
10.1
10.2
10.3
10.4
10.5
10.6
10.7
10.8
10.9
11.0
11.1
11.2
11.3
11.4
11.5
11.6
11.7
11.8
11.9
12.0
12.1
Bentley Systems, Inc. Haestad Methods
Solution Center
27 Siemon Company Drive Suite 200 W
Watertown, CT 06795 USA [phone]
Depth (n)
0.428
0.436
0.445
0.454
0.463
0.473
0.482
0.493
0.503
0.514
0.526
0.537
0.548
0.559
0.571
0.582
0.594
0.607
0.620
0.633
0.648
0.663
0.679
0.696
0.714
0.733
0.753
0.775
0.798
0.822
0.849
0.880
0.913
0.950
0.990
1.074
1.240
1.508
1.988
2.320
2.387
Bentley CivilStorm V8 XM Edition
[08.09.023.25]
Page 4 of 7

1
1
r
i
Storm Event Detailed
Report: 2yr
Rainfall
Time (hours) Depth (in)
12.2 2.445
12.3 2.496
12.4 2.538
12.5 2.573
12.6 2.602
12.7 2.630
12.8 2.656
12.9 2.680
13.0 2.702
13.1 2.723
13.2 2.743
13.3 2.762
13.4 2.780
13.5 2.797
13.6 2.813
13.7 2.828
13.8 2.843
13.9 2.857
14.0 2.870
14.1 2.883
14.2 2.895
14.3 2.908
14.4 2.920
14.5 2.932
14.6 2.943
14.7 2.955
14.8 2.966
14.9 2.977
15.0 2.987
15.1 2.998
15.2 3.008
15.3 3.018
15.4 3.027
15.5 3.037
15.6 3.046
15.7 3.055
15.8 3.063
15.9 3.072
16.0 3.080
16.1 3.088
16.2 3.096
Aircraft_Left_PostDev2.csd Bentley Systems, Inc. Haestad Methods Bentley CivilStorm V8 XM Edition
Solution Center [08.09.023.25
8/16/2007 27 Siemon Company Drive Suite 200 W Page 5 of 7
Watertown, CT 06795 USA [phone]

i
Storm Event Detailed
Report: 2yr
Rainfall
Time (hours)
16.3
16.4
16.5
16.6
16.7
16.8
16.9
17.0
17.1
17.2
17.3
17.4
1 17.5
17.6
17.7
17.8
17.9
18.0
18.1
18.2
18.3
18.4
18.5
18.6
18.7
18.8
18.9
1 19.0
19.1
19.2
19.3
19.4
19.5
19.6
19.7
19.8
19.9
20.0
20.1
20.2
20.3
Aircraft Left_PostDev2.csd Bentley Systems, Inc. Haestad Methods
Solution Center
8/16/2007 27 Siemon Company Drive Suite 200 W
Watertown, CT 06795 USA [phone]
Depth (in)
3.104
3.111
3.119
3.127
3.134
3.142
3.149
3.156
3.163
3.170
3.177
3.184
3.191
3.198
3.204
3.211
3.217
3.224
3.230
3.236
3.242
3.248
3.254
3.260
3.265
3.271
3.277
3.282
3.288
3.293
3.298
3.303
3.308
3.313
3.318
3.323
3.327
3.332
3.337
3.341
3.346
Bentley CivilStorm V8 XM Edition
[08.09.023.25]
Page 6 of 7

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Storm Event Detailed
Report: 2yr
Rainfall
Time (hcu~s)
20.4
20.5
20.6
20.7
20.8
20.9
21.0
21.1
21.2
21.3
21.4
21.5
21.6
21.7
21.8
21.9
22.0
22.1
22.2
22.3
22.4
22.5
22.6
22.7
22.8
22.9
23.0
23.1
23.2
23.3
23.4
23.5
23.6
23.7
23.8
23.9
24.0
Aircraft Left PostDev2.csd Bentley Systems, Inc. Haestad Methods
Solution Center
8/16/2007 27 Siemon Company Drive Suite 200 W
Watertown, CT 06795 USA [phone]
Depth (in)
3.350
3.355
3.359
3.363
3.368
3.372
3.377
3.381
3.385
3.390
3.394
3.398
3.403
3.407
3.411
3.415
3.419
3.424
3.428
3.432
3.436
3.440
3.444
3.448
3.453
3.457
3.461
3.465
3.469
3.473
3.477
3.481
3.484
3.488
3.492
3.496
3.500
Bentley CivilStorm V8 XM Edition
[08.09.023.25]
Page 7 of 7

Storm Event Detailed
' Report: 10yr
<General>
Label 10yr
Notes
Rainfall
Storm Event Data Type Depth
Start Time 0.0 hours
Increment 0.1 hours
End Time 24.0 hours
Storm Event Depth Type Cumulative

i

1
1

1
1

Aircraft_Left PostDev2.csd Bentley Systems, Inc. Haestad Methods
Solution Center
8/16/2007 27 Siemon Company Drive Suite 200 W
Watertown, CT 06795 USA [phone]
Bentley CivilStomt V8 XM Edition
[06.09.023.25]
Page 1 of 7

Storm Event Detailed
Report: 10yr
Rainfall
Time thours)
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
Aircraft_Left PostDev2.csd Bentley Systems, Inc. Haestad Methods
Solution Center
8/16/2007 27 Siemon Company Drive Suite 200 W
Watertown, CT 06795 USA [phone]
Depth (in)
0.000
0.005
0.010
0.016
0.021
0.026
0.032
0.037
0.042
0.048
0.054
0.059
0.065
0.071
0.076
0.082
0.088
0.094
0.100
0.106
0.112
0.118
0.125
0.131
0.137
0.143
0.150
0.156
0.163
0.169
0.176
0.183
0.189
0.196
0.203
0.210
0.217
0.224
0.231
0.238
Bentley CivilStorm V8 XM Edition
[08.09.023.25]
Page 2 of 7

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Storm Event Detailed
Report: 10yr
'Rainfiall
Time (hours) Depth (in)
4.0 0.245
4.1 .0.252
4.2 0.259
4.3 0.267
4.4 0.274
4.5 0.282
4.6 0.289
4.7 0.297
4.8 0.305
4.9 0.313
5.0 0.321
5.1 0.330
5.2 0.338
5.3 0.346
5.4 0.355
5.5 0.363
5.6 0.372
5.7 0.381
5.8 0.390
5.9 0.399
6.0 0.408
6.1 0.417
6.2 0.427
6.3 0.436
6.4 0.446
6.5 0.455
6.6 0.465
6.7 0.475
6.8 0.485
6.9 0.495
7.0 0.505
7.1 0.515
7.2 0.526
7.3 0.536
7.4 0.547
7.5 0.557
7.6 0.568
7.7 0.579
7.8 0.590
7.9 0.601
8.0 0.612
PostDev2.csd Bentley Systems, Inc. Haestad Methods
Left
Aircraft Bentley CivilStorm V8 XM Edition
_
_
Solution Center [08.09.023.25]
8/16/2007 27 Siemon Company Drive Suite 200 W Page 3 of 7
Watertown, CT 06795 USA [phone]

Storm Event Detailed
' Report: 10yr
Rainfall
Time (hours)
8.1
8.2
8.3
8.4
8.5
8.6
8.7
8.8
8.9
9.0
9.1
9.2
9.3
9.4
9.5
9.6
9.7
9.8
9.9
10.0
10.1
10.2
10.3
10.4
10.5
10.6
10.7
10.8
10.9
11.0
11.1
11.2
' 11.3
11.4
11.5
11.6
11.7
11.8
11.9
12.0
' 12.1
Aircraft_Left_PostDev2.csd Bentley Systems, Inc. Haestad Methods
Solution Center
' 8/16/2007 27 Siemon Company Drive Suite 200 W
Watertown, CT 06795 USA [phone]
Depth (in)
0.623
0.635
0.648
0.661
0.674
0.689
0.703
0.718
0.734
0.750
0.766
0.782
0.799
0.815
0.831
0.848
0.866
0.884
0.903
0.923
0.944
0.966
0.990
1.014
1.040
1.068
1.098
1.129
1.163
1.198
1.238
1.282
1.331
1.385
1.443
1.565
1.807
2.197
2.896
3.381
3.478
Bentley CivilStorm V8 XM Edition
[08.09.023.25]
Page 4 of 7

Storm Event Detailed
Report: 10yr
Rainfall
Time (hours]
12.2
' 12.3
12.4
' 12.5
12.6
12.7
12.8
12.9
13.0
13.1
13.2
13.3
13.4
13.5
13.6
13.7
13.8
13.9
' 14.0
14.1
14.2
14.3
14.4
14.5
14.6
14.7
14.8
14.9
15.0
15.1
15.2
15.3
15.4
15.5
15.6
15.7
15.8
15.9
16.0
16.1
6.2
Aircraft_Left_PostDev2.csd Bentley Systems, Inc. Haestad Methods
Solution Center
' 8/16/2007 27 Siemon Company Drive Suite 200 W
Watertown, CT 06795 USA [phone]
Depth (in)
3.563
3.637
3.698
3.749
3.792
3.832
3.870
3.905
3.937
3.968
3.997
4.024
4.050
4.075
4.098
4.121
4.142
4.163
4.182
4.201
4.219
4.237
4.255
4.272
4.289
4.305
4.322
4.337
4.353
4.368
4.383
4.397
4.411
4.425
4.438
4.451
4.464
4.476
4.488
4.500
4.511
Bentley CivilStorm VS XM Edition
[08.09.023.25]
Page 5 of 7

1
1
1
1
1
1
t
1
1
1
1
Storm Event Detailed
Report: 10yr
Rainfall
Time (hours) Depth (in)
16.3 4.523
16.4 4.534
16.5 4.545
16.6 4.556
16.7 4.567
16.8 4.578
16.9 4.588
17.0 4.599
17.1 4.609
17.2 4.620
17.3 4.630
17.4 4.640
17.5 4.650
17.6 4.659
17.7 4.669
17.8 4.678
17.9 4.688
18.0 4.697
18.1 4.706
18.2 4.715
18.3 4.724
18.4 4.733
18.5 4.741
18.6 4.750
18.7 4.758
18.8 4.766
18.9 4.775
19.0 4.783
19.1 4.790
19.2 4.798
19.3 4.806
19.4 4.813
19.5 4.820
19.6 4.828
19.7 4.835
19.8 4.842
19.9 4.849
20.0 4.855
20.1 4.862
20.2 4.868
20.3 4.875
Aircraft_Left PostDev2.csd Bentley Systems, Inca Haestad Methods Bentley CivilStorm V8 XM Edition
Solution Center [08.09.023.25]
8/16/2007 27 Siemon Company Drive Suite 200 W Page 6 of 7
Watertown, CT 06795 USA [phone]

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Storm Event Detailed
Report: 10yr
Rainfall
Time (hours)
20.4
20.5
20.6
20.7
20.8
20.9
21.0
21.1
21.2
21.3
21.4
21.5
21.6
21.7
21.8
21.9
22.0
22.1
22.2
22.3
22.4
22.5
22.6
22.7
22.8
22.9
23.0
23.1
23.2
23.3
23.4
23.5
23.6
23.7
23.8
23.9
24.0
Aircraft_Left_PostDev2.csd Bentley Systems, Inc. Haestad Methods
Solution Center
8/16/2007 27 Siemon Company Drive Suite 200 W
Watertown, CT 06795 USA [phone]
Depth (in)
4.882
4.888
4.895
4.901
4.907
4.914
4.920
4.927
4.933
4.939
4.946
4.952
4.958
4.964
4.970
4.977
4.983
4.989
4.995
5.001
5.007
5.013
5.019
5.025
5.031
5.037
5.043
5.048
5.054
5.060
5.066
5.072
5.077
5.083
5.089
5.094
5.100
Bentley CivilStorm VS XM Edition
[08.09.023.25]
Page 7 of 7

Storm Event Detailed
Report: 100yr
<General>
Label 100yr
Notes
Rainfall
Storm Event Data Type Depth
Start Time 0.0 hours
Increment 0.1 hours
End Time 24.0 hours
Storm Event Depth Type Cumulative
Aircraft_Left_PostDev2.csd Bentley Systems, Inc. Haestad Methods Bentley CivilStorm V8 XM Edition
Solution Center [08.09.023.25]
8/16/2007 27 Siemon Company Drive Suite 200 W Page 1 of 7
Watertown, CT 06795 USA [phone]

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Storm Event Detailed
Report: 100yr
Rainfall
Time (hours)
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
Aircraft_Left_PostDev2.csd Bentley Systems, Inc. Haestad Methods
Solution Center
8/16/2007 27 Siemon Company Drive Suite 200 W
Watertown, CT 06795 USA [phone]
Depth (in)
0.000
0.008
0.015
0.023
0.031
0.038
0.046
0.054
0.062
0.071
0.079
0.087
0.095
0.104
0.112
0.121
0.130
0.138
0.147
0.156
0.165
0.174
0.183
0.192
0.202
0.211
0.220
0.230
0.239
0.249
0.259
0.269
0.278
0.288
0.298
0.308
0.319
0.329
0.339
0.350
Bentley CivilStorm VS XM Edition
[08.09.023.25]
Page 2 of 7

1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Storm Event Detailed
Report: 100yr
Rainfall
Time (hours) Depth (in)
4.0 0.360
4.1 0.371
4.2 0.381
4.3 0.392
4.4 0.403
4.5 0.414
4.6 0.426
4.7 0.437
4.8 0.449
4.9 0.461
5.0 0.473
5.1 0.485
5.2 0.497
5.3 0.509
5.4 0.522
5.5 0.534
5.6 0.547
5.7 0.560
5.8 0.573
5.9 0.587
6.0 0.600
6.1 0.614
6.2 0.627
6.3 0.641
6.4 0.655
6.5 0.669
6.6 0.684
6.7 0.698
6.8 0.713
6.9 0.728
7.0 0.742
7.1 0.758
7.2 0.773
7.3 0.788
7.4 0.804
7.5 0.819
7.6 0.835
7.7 0.851
7.8 0.867
7.9 0.884
8.0 0.900
Aircraft_Left PostDev2.csd Bentley Systems, Inc. Haestad Methods Bentley CivilStorm VS XM Edition
Solution Center [08.09.023.25]
8/16/2007 27 Siemon Company Drive Suite 200 W Page 3 of 7
Watertown, CT 06795 USA [phone]

1
Storm Event Detailed
' _ __ Report: 100yr
Rainfall
Time hours'
,. ( J
8.1
8.2
8.3
8.4
' 8.5
8.6
8.7
8.8
8.9
' 9.0
9.1
9.2
' 9.3
9.4
9.5
9.6
9.7
9.8
' 9.9
10.0
10.1
10.2
10.3
' 10.4
10.5
10.6
' 10.7
10.8
10.9
' 11.0
11.1
11.2
11.3
11.4
11.5
11.6
11.7
' 11.8
11.9
12.0
12.1
Aircraft_Left PostDev2.csd Bentley Systems, Inc. Haestad Methods
Solution Center
8/16/2007 27 Siemon Company Drive Suite 200 W
Watertown, CT 06795 USA [phone]
Depth (in)
0.917
0.935
0.953
0.972
0.992
1.013
1.034
1.056
1.079
1.102
1.126
1.151
1.174
1.198
1.223
1.247
1.273
1.300
1.328
1.357
1.388
1.421
1.456
1.492
1.530
1.570
1.614
1.660
1.710
1.762
1.820
1.885
1.957
2.036
2.122
2.301
2.658
3.231
4.259
4.972
5.115
Bentley CivilStorm V8 XM Edition
[08.09.023.25]
Page 4 of 7

Storm Event Detailed
Report: 100yr
Rainfall
Time (hcurs; Depth (n)
12.2 5.240
12.3 5.348
12.4 5.439
12.5 5.513
12.6 5.576
12.7 5.635
12.8 5.691
12.9 5.742
13.0 5.790
13.1 5.835
13.2 5.877
13.3 5.918
13.4 5.956
13.5 5.993
13.6 6.027
13.7 6.060
13.8 6.092
13.9 6.122
14.0 6.150
14.1 6.178
14.2 6.204
14.3 6.231
14.4 6.257
14.5 6.282
14.6 6.307
14.7 6.331
14.8 6.355
14.9 6.379
15.0 6.401
15.1 6.424
15.2 6.445
15.3 6.466
15.4 6.487
15.5 6.507
15.6 6.527
15.7 6.546
15.8 6.564
15.9 6.583
16.0 6.600
16.1 6.617
16.2 6.634
Aircraft_Left_PostDev2.csd Bentley Systems, Inc. Haestad Methods Bentley CivilStorm V8 XM Edition
Solution Center [08.09.023.25]
8/16/2007 27 Siemon Company Drive Suite 200 W Page 5 of 7
Watertown, CT 06795 USA [phone]

Storm Event Detailed
Report: 100yr
Rainfall
Time (hears)
16.3
16.4
16.5
16.6
16.7
16.8
16.9
17.0
17.1
17.2
17.3
17.4
17.5
17.6
17.7
17.8
17.9
18.0
18.1
18.2
18.3
18.4
18.5
18.6
18.7
18.8
18.9
19.0
19.1
19.2
19.3
19.4
19.5
19.6
19.7
19.8
19.9
20.0
20.1
20.2
20.3
Aircraft_Left PostDev2.csd Bentley Systems, Inc. Haestad Methods
Solution Center
8/16/2007 27 Siemon Company Drive Suite 200 W
Watertown, CT 06795 USA [phone]
Depth (in)
6.651
6.667
6.684
6.700
6.716
6.732
6.748
6.763
6.778
6.793
6.808
6.823
6.838
6.852
6.866
6.880
6.894
6.908
6.921
6.934
6.947
6.960
6.973
6.985
6.997
7.009
7.021
7.033
7.045
7.056
7.067
7.078
7.089
7.100
7.110
7.120
7.130
7.140
7.150
7.159
7.169
Bentley CivilStorm V8 XM Edition
[08.09.023.25]
Page 6 of 7

1
1
1
1
1
1
1
1
1
1
1
1
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1
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1
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1
Storm Event Detailed
Report: 100yr
Rainfall
Time {hours)
20.4
20.5
20.6
20.7
20.8
20.9
21.0
21.1
21.2
21.3
21.4
21.5
21.6
21.7
21.8
21.9
22.0
22.1
22.2
22.3
22.4
22.5
22.6
22.7
22.8
22.9
23.0
23.1
23.2
23.3
23.4
23.5
23.6
23.7
23.8
23.9
24.0
Aircraft_Left_PostDev2.csd Bentley Systems, Inc. Haestad Methods
Solution Center
6/16/2007 27 Siemon Company Drive Suite 200 W
Watertown, CT 06795 USA [phone]
Depth (in)
7.179
7.188
7.198
7.207
7.217
7.226
7.236
7.245
7.254
7.264
7.273
7.282
7.291
7.300
7.309
7.318
7.327
7.337
7.345
7.354
7.363
7.372
7.381
7.390
7.398
7,407
7.416
7.424
7.433
7.441
7.450
7.458
7.467
7.475
7.483
7.492
7.500
Bentley CivilStorm VS XM Edition
[08.09.023.25]
Page 7 of 7

1

853.5
,. 853.0
.. 852.5
a~
852.0
(~
~ 851.5
.~
851.0
m
850.5
850.0
849.5
6.0

5.0
~ 4.0
3.0
0
~ 2.0
0
~' 1.0
' 0.0
60000
1
50000
~ 40000

a~
~ 30000
> 20000
10000
1
0

1 Year Pond Data
n
0
12
24
36
48 60 72
Time (hours)
84
96
108
120

1

t

1
Honda Aeronautics, Greensboro, NC
Catchment Table

Label
Outflow Node Area
(sq.ft.) Tc
(min) Composite
SCS CN Peak Flow
(cfs) Total Runoff Vol.
(cu.ft.)
CM-2 25: CB-4 10977.1 1.2 98.0 0.88 2294.8
CM-3 26: CB-5 10715.8 1.3 98.0 0.86 2238.3
CM-4 27: CB-6 8799.1 1.3 98.0 0.71 1840.4
CM-5 36: CB-15 8755.6 1.4 98.0 0.70 1832.3
CM-6 35: CB-14 8755.6 1.4 98.0 0.70 1833.5
CM-7 34: CB-13 6664.7 1.4 98.0 0.53 1392.4
CM-8 33: CB-12 4399.6 2.4 98.0 0.35 917.9
CM-9 33: CB-12 32713.6 6.3 74.0 0.79 2038.6
CM-10 33: CB-12 9104.0 2.8 98.0 0.73 1902.8
CM-11 30: CB-9 10062.4 1.6 98.0 0.81 2103.4
CM-12 28: CB-7 13024.4 3.4 83.1 0.58 1347.4
CM-13 29: CB-8 17598.2 4.0 90.1 1.10 2572.7
CM-14 37: CB-16 28880.3 4.1 84.9 1.42 3279.6
CM-15 38: CB-17 15768.7 4.1 88.4 0.92 2126.0
CM-16 32: CB-11 6011.3 1.5 98.0 0.48 1257.5
CM-17 31: CB-10 5314.3 1.4 98.0 0.43 1107.2
CM-18 23: CB-3 5619.2 1.7 98.0 0.45 1169.7
CM-19 39: CB-18 4704.5 1.3 98.0 0.38 981.9
CM-20 40: CB-19 9626.8 2.5 92.0 0.65 1540.8
CM-21 41: CB-20 11456.3 2.3 91.1 0.75 1764.5
CM-22 21: CB-2 9104.0 2.1 90.4 0.58 1359.6
CM-23 19: CB-1 8102.2 1.8 92.8 0.57 1364.1
CM-24 61: CB-23 8320.0 2.3 98.0 0.67 1738.8
CM-25 60: CB-22 10759.3 1.9 98.0 0.87 2272.2
CM-26 59: CB-21 35937.0 2.8 95.1 2.69 6605.3
CM-27 84: CB-26 8799.1 1.3 98.0 0.71 183 8.7
CM-28 63: CB-25 17467.6 3.1 86.1 0.91 2107.5
CM-29 62: CB-24 38071.4 2.2 90.7 2.29 5370.9
CM-30 138: CB-28 2265.1 1.1 89.0 0.14 312.5
CM-31 175: MH-20 22389.8 4.6 98.0 1.79 4681.9
CM-32 176: MH-21 22389.8 4.6 98.0 1.79 4681.9
CM-33 167: MH-18 3964.0 2.1 98.0 0.32 829.3
CM-34 168: MH-19 3964.0 2.1 98.0 0.32 826.5
CM-35 177: MH-22 22389.8 4.6 98.0 1.79 4681.9
CM-36 159: MH-14 22912.6 4.6 98.0 1.84 4791.2
CM-37 160: MH-15 22912.6 4.6 98.0 1.84 4791.2
CM-38 161: MH-16 22912.6 4.6 98.0 1.84 4791.2
CM-39 162: MH-17 22912.6 4.6 98.0 1.84 4791.2
CM-40 156: MH-13 2265.1 1.4 98.0 0.18 468.9
CM-41 155: MH-12 2265.1 1.4 98.0 0.18 471.3
CM-42 153: MH-11 2265.1 1.4 98.0 0.18 468.9

1

t
1

CM-43 188: CS-2 139827.6 9.2 74.0 3.17 8712.4
CM-44 191: CS-4 125932.0 2.4 76.1 3.66 8902.1
CM-45 200: CS-8 119702.9 7.1 74.0 2.83 7459.6
CM-46 197: CS-7 81457.2 4.7 74.0 2.03 5075.5
CM-47 195: CS-6 91040.4 7.3 75.8 2.44 6328.3
CM-48 218: CB-29 71264.2 5.2 94.5 5.24 12767.9
1

~s . ~ rr ~ ~ ~ ~ r ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
Honda Aeronautics, Greensboro, NC
Catchbasin Table
Label Ground Elev.(ft) Invert Elev.(ft Capture Efficiency Is Flooded Ever? Max.Captured Flow (cfs) Max.Hydraulic Grade (ft)
CB-1 871.83 858.53 100% FALSE 0.52 859.20
CB-2 872.53 858.92 100% FALSE 0.53 860.22
CB-3 869.74 859.35 100% FALSE 0.40 860.53
CB-4 866.31 861.90 100% FALSE 0.79 862.25
CB-5 867.21 861.69 100% FALSE 0.77 862.17
CB-6 867.37 861.33 100% FALSE 0.63 861.91
CB-7 873.56 869.28 100% FALSE 0.54 869.48
CB-8 872.31 867.63 100% FALSE 1.01 867.96
CB-9 868.98 859.58 100% FALSE 0.72 860.56
CB-10 870.44 861.01 100% FALSE 0.38 861.52
CB-11 871.20 862.67 100% FALSE 0.43 863.22
CB-12 866.29 860.13 100% FALSE 1.75 860.99
CB-13 867.39 860.25 100% FALSE 0.48 861.05
CB-14 867.80 860.61 100% FALSE 0.63 861.36
CB-15 867.53 860.97 100% FALSE 0.63 861.64
CB-16 871.81 865.98 100% FALSE 1.32 866.43
CB-17 872.06 864.32 100% FALSE 0.84 864.83
CB-18 876.04 871.70 100% FALSE 0.34 871.88
CB-19 875.02 870.56 100% FALSE 0.59 870.84
CB-20 873.94 868.92 100% FALSE 0.68 869.26
CB-21 878.23 868.19 100% FALSE 2.42 868.82
CB-22 880.83 875.53 100% FALSE 0.78 876.23
CB-23 882.58 878.30 100% FALSE 0.60 878.65
CB-24 880.83 870.70 100% FALSE 2.09 871.93
CB-25 880.44 870.28 100% FALSE 0.84 871.51
CB-26 879.60 875.35 100% FALSE 0.63 875.54
CB-28 882.30 879.90 100% FALSE 0.12 880.55
CB-29 877.50 873.50 100% FALSE 4.76 874.14

~ ~ r ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
Honda Aeronautics, Greensboro, NC
Manhole Table
Label Diameter (ft) Headloss Method Ground Elevation (ft) Invert Elevation (ft) Max. Hydraulic Grade (ft) Is Flooded Ever?
MH-1 4 HEC-22 Headloss 867.00 851.65 853.38 FALSE
MH-10 4 HEC-22 Headloss 881.50 869.63 870.95 FALSE
MH-11 3 HEC-22 Headloss 882.58 878.33 878.66 FALSE
MH-12 3 HEC-22 Headloss 882.85 878.44 878.69 FALSE
MH-13 3 HEC-22 Headloss 883.33 878.68 878.86 FALSE
MH-14 3 HEC-22 Headloss 883.67 879.84 880.26 FALSE
MH-15 3 HEC-22 Headloss 883.56 879.46 880.07 FALSE
MH-16 3 HEC-22 Headloss 883.37 878.86 879.63 FALSE
MH-17 3 HEC-22 Headloss 883.40 878.15 878.92 FALSE
MH-18 3 HEC-22 Headloss 881.05 870.45 871.65 FALSE
MH-19 3 HEC-22 Headloss 881.00 869.77 871.03 FALSE
MH-20 3 HEC-22 Headloss 883.39 881.50 881.91 FALSE
MH-21 3 HEC-22 Headloss 882.55 880.64 881.19 FALSE
MH-22 3 HEC-22 Headloss 883.71 881.15 881.56 FALSE
MH-23 4 HEC-22 Headloss 858.00 851.23 853.38 FALSE

r~ it rr r~ r r~ rr a~ r~ r^~ r r r r r r r rr
Honda Aeronautics, Greensboro, NC
C'rncs Sectinn Tahle

Label
Manning's n
Section Type Left Side Slope
(H:V) Bottom Width
(ft) Right Side Slope
(H:V)
eight (ft Invert Elevation
(ft) Max.Hydraulic Grade
(ft)
CS-2 0.035 Trapezoidal 4 4 4 5 855.50 855.72
CS-3 0.035 Trapezoidal 4 4 4 5 855.00 855.26
CS-4 0.035 Trapezoidal 4 4 4 5 841.00 841.55
CS-5 0.035 Trapezoidal 4 4 4 5 840.00 840.44
CS-6 0.035 Trapezoidal 6 6 6 4 848.50 848.68
CS-7 0.035 Trapezoidal 6 6 6 4 832.50 832.81
CS-8 0.035 Tra ezoidal 4 4 4 5 835.00 835.36
CS-12 0.035 Trapezoidal 10 10 10 3 849.00 849.18

~ ~ r r~r r r ~
Honda Aeronautics, Greensboro, NC
Conduit Table
r ~ s ~ r ~ ~ ~ ~^ ~ r ~

Label
Start-node
Start IE
Stop-node
Stop IE Length
(ft)
Slope Diameter
(in) Manning's
'n' Full Capacity
(cfs) Max.Flow
(cfs) Max.Velocity
(ft/s)
CO-1 17: MH-1 851.65 16: OF-2 851.00 129.5 0.5% 30 0.013 29.06 14.65 5.33
CO-2 19: CB-1 858.53 17: MH-1 851.65 118.3 5.8% 30 0.013 98.91 14.75 14.44
CO-3 21: CB-2 858.92 19: CB-1 858.53 77.3 0.5% 30 0.013 29.13 14.23 5.80
CO-4 23: CB-3 859.35 21: CB-2 858.92 86.0 0.5% 30 0.013 29.00 11.95 5.49
CO-5 39: CB-18 871.70 40: CB-19 870.56 71.0 1.6% 18 0.013 13.31 0.36 3.07
CO-6 40: CB-19 870.56 41: CB-20 869.42 71.0 1.6% 18 0.013 13.31 0.97 4.27
CO-7 41: CB-20 868.92 21: CB-2 867.78 71.0 1.6% 24 0.013 28.66 1.68 4.92
CO-8 28: CB-7 869.28 29: CB-8 867.63 71.0 2.3% 18 0.013 16.01 0.56 3.80
CO-9 29: CB-8 867.63 37: CB-16 865.98 71.0 2.3% 18 0.013 16.01 1.60 5.67
CO-10 37: CB-16 865.98 38: CB-17 864.32 71.0 2.3% 18 0.013 16.06 2.96 6.87
CO-11 38: CB-17 864.32 32: CB-11 862.67 71.0 2.3% 18 0.013 16.01 3.84 7.39
CO-12 32: CB-11 862.67 31: CB-10 861.01 71.0 2.3% 18 0.013 16.06 4.30 7.65
CO-13 31: CB-10 861.01 23: CB-3 859.35 71.0 2.3% 24 0.013 34.59 4.71 7.66
CO-14 33: CB-12 860.13 30: CB-9 859.58 110.2 0.5% 24 0.013 15.98 5.96 4.65
CO-15 30: CB-9 859.58 23: CB-3 859.35 45.0 0.5% 30 0.013 29.34 6.71 3.30
CO-16 25: CB-4 861.90 26: CB-5 861.69 42.3 0.5% 18 0.013 7.41 0.83 2.35
CO-17 26: CB-5 861.69 27: CB-6 861.33 71.0 0.5% 18 0.013 7.48 1.63 3.31
CO-18 27: CB-6 861.33 36: CB-15 860.97 71.0 0.5% 18 0.013 7.48 2.30 3.66
CO-19 36: CB-15 860.97 35: CB-14 860.61 71.0 0.5% 18 0.013 7.48 2.98 3.95
CO-20 35: CB-14 860.61 34: CB-13 860.25 71.0 0.5% 18 0.013 7.48 3.65 4.18
CO-21 34: CB-13 860.25 33: CB-12 860.13 22.3 0.5% 18 0.013 7.71 4.16 4.29
CO-26 61: CB-23 878.30 60: CB-22 876.03 227.5 1.0% 18 0.013 10.49 1.16 3.82
CO-27 60: CB-22 875.53 59: CB-21 872.98 94.5 2.7% 24 0.013 37.17 9.00 9.77
CO-33 84: CB-26 875.35 83: MH-10 873.33 48.0 4.2% 18 0.013 21.56 0.70 5.43
CO-34 83: MH-10 869.63 59: CB-21 868.19 287.0 0.5% 30 0.013 29.05 14.76 5.92
C0-38 138: CB-28 879.90 62: CB-24 877.82 104.1 2.0% 18 0.013 14.85 5.24 7.64
CO-39 153: MH-11 878.33 61: CB-23 878.30 6.1 0.5% 15 0.013 4.55 0.17 0.65

^r r~ r rr r ,r . r a~ rs ,^~ r ~^r ~ ~ r r~ r r
CO-40 156: MH-13 878.68 155: MH-12 878.44 48.3 0.5% 15 0.013 4.55 0.17 1.57
CO-41 155: MH-12 878.44 61: CB-23 878.30 26.9 0.5% 15 0.013 4.66 0.34 1.61
CO-42 159: MH-14 879.84 160: MH-15 879.46 37.9 1.0% 18 0.013 10.52 1.75 4.13
CO-43 160: MH-15 879.46 161: MH-16 878.86 59.4 1.0% 18 0.013 10.56 3.47 5.25
CO-44 161: MH-16 878.86 162: MH-17 878.57 30.3 1.0% 18 0.013 10.28 5.19 5.93
CO-45 162: MH-17 878.15 60: CB-22 876.78 136.6 1.0% 24 0.013 22.65 6.89 6.30
CO-46 63: CB-25 870.28 168: MH-19 869.77 101.2 0.5% 30 0.013 29.12 13.79 5.74
CO-47 168: MH-19 869.77 83: MH-10 869.63 26.8 0.5% 30 0.013 29.65 14.08 5.59
CO-48 62: CB-24 870.70 167: MH-18 870.45 49.3 0.5% 30 0.013 29.20 12.61 5.52
CO-49 167: MH-18 870.45 63: CB-25 870.28 33.7 0.5% 30 0.013 29.15 12.91 5.56
CO-50 175: MH-20 881.50 176: MH-21 880.64 42.6 2.0% 12 0.013 5.06 1.71 5.73
CO-51 176: MH-21 880.64 138: CB-28 880.40 11.9 2.0% 15 0.013 9.16 3.41 6.99
CO-52 177: MH-22 881.15 138: CB-28 880.40 38.0 2.0% 12 0.013 5.01 1.71 5.69
CO-54 218: CB-29 873.50 62: CB-24 870.70 280.0 1.0% 24 0.013 22.62 4.97 5.73
CO-55 59: CB-21 868.19 289: MH-23 851.23 82.9 20.5% 30 0.013 185.51 26.47 27.18
CO-56 289: MH-23 851.23 15: OF-1 851.00 45.7 0.5% 30 0.013 29.11 26.51 7.11
CO-57 203: OS-1 849.30 297: CS-12 849.00 60.0 0.5% 36 0.013 47.16 5.03 4.71

Honda Aeronautics Greensboro NC
~ Channel Table

Label
CH-2
Start-node
188: CS-2
Stop-node
189: CS-3 Start Invert
(ft)
855.50 Stop Invert
(ft)
855.00 Length
(ft)
10
Slope
5.0% Max.Flow
(cfs)
3.17 Max.Velocity
(ft/s)
2.93
CH-3 189: CS-3 191: CS-4 855.00 841.00 532 2.6% 3.08 2.36
CH-4 191: CS-4 192: CS-5 841.00 840.00 160 0.6% 6.20 1.82
CH-5 195: CS-6 197: CS-7 848.50 832.50 580 2.8% 2.42 1.90
CH-6 197: CS-7 196: OF-3 832.50 831.50 14.5 6.9% 13.11 4.62
CH-7 200: CS-8 197: CS-7 835.00 832.50 72.25 3.5% 9.49 3.70
CH-8 192: CS-5 200: CS-8 840.00 835.00 340 1.5% 6.01 2.41
~ CH-16 297: CS-12 200: CS-8 849.00 835.00 339 4.1% 5.03 2.66
1
1
1
1
1
1
1
1
1
1

Honda Aeronautics Greensboro, NC
1

Pond Table

Label
Volume Type Initial Elevation
(ft) Max.Hydraulic Grade
(ft) Max. Storage
(cu.ft.)
PO-1 Elevation-Area 849.50 853.37 58454.18
Outlet Structures

1

Id Label Upstream Pond Has Control Structure
203 OS-1 184: PO-1 Yes

t
$ 854
v 853
~ 852
~ 851
= 850
~~
16.0
n 14.0
$ 12.0
0 10.0
8.0
~ 6.0
m
4.0
2.0
0.0
70000
60000
~ 50000
~ 40000
0 30000
~ 20000
10000
0
2 Year Pond Data
0
2
4
6
8
10 12 14
Time (hours)
1ti
1~
1U
1'L
24

1
1
1
i
1
1
1
1
1
1
1
Honda Aeronautics, Greensboro, NC
Catchment Table

Label
Outflow Node Area
(sq.ft.) Tc
(min) Composite
SCS CN Peak Flow
(cfs) Total Runoff Vol.
(cu.ft.)
CM-2 25: CB-4 10977.1 1.2 98.0 1.13 2987.6
CM-3 26: CB-5 10715.8 1.3 98.0 1.10 2913.9
CM-4 27: CB-6 8799.1 1.3 98.0 0.91 2396.4
CM-5 36: CB-15 8755.6 1.4 98.0 0.90 2385.9
CM-6 35: CB-14 8755.6 1.4 98.0 0.90 2387.4
CM-7 34: CB-13 6664.7 1.4 98.0 0.69 1813.3
CM-8 33: CB-12 4399.6 2.4 98.0 0.45 1196.2
CM-9 33: CB-12 32713.6 6.3 74.0 1.37 3380.4
CM-10 33: CB-12 9104 2.8 98.0 0.94 2477.6
CM-11 30: CB-9 10062.4 1.6 98.0 1.04 2738.6
CM-12 28: CB-7 13024.4 3.4 83.1 0.87 2018.1
CM-13 29: CB-8 17598.2 4.0 90.1 1.52 3602.7
CM-14 37: CB-16 28880.3 4.1 84.9 2.08 4825.1
CM-15 38: CB-17 15768.7 4.1 88.4 1.29 3025.0
CM-16 32: CB-11 6011.3 1.5 98.0 0.62 1637.8
CM-17 31: CB-10 5314.3 1.4 98.0 0.55 1442.3
CM-18 23: CB-3 5619.2 1.7 98.0 0.58 1523.6
CM-19 39: CB-18 4704.5 1.3 98.0 0.48 1279.3
CM-20 40: CB-19 9626.8 2.5 92.0 0.88 2120.2
CM-21 41: CB-20 11456.3 2.3 91.1 1.03 2449.3
CM-22 21: CB-2 9104 2.1 90.4 0.80 1899.0
CM-23 19: CB-1 8102.2 1.8 92.8 0.77 1863.3
CM-24 61: CB-23 8320 2.3 98.0 0.86 2264.1
CM-25 60: CB-22 10759.3 1.9 98.0 1.12 2958.1
CM-26 59: CB-21 35937 2.8 95.1 3.54 8833.1
CM-27 84: CB-26 8799.1 1.3 98.0 0.91 2394.2
CM-28 63: CB-25 17467.6 3.1 86.1 1.32 3062.6
CM-29 62: CB-24 38071.4 2.2 90.7 3.15 7480.4
CM-30 138: CB-28 2265.1 1.1 89.0 0.19 442.7
CM-31 175: MH-20 22389.8 4.6 98.0 2.31 6094.5
CM-32 176: MH-21 22389.8 4.6 98.0 2.31 6094.5
CM-33 167: MH-18 3964 2.1 98.0 0.41 1081.2
CM-34 168: MH-19 3964 2.1 98.0 0.41 1077.4
CM-35 177: MH-22 22389.8 4.6 98.0 2.31 6094.5
CM-36 159: MH-14 22912.6 4.6 98.0 2.36 6236.8
CM-37 160: MH-15 22912.6 4.6 98.0 2.36 6236.8
CM-38 161: MH-16 22912.6 4.6 98.0 2.36 6236.8
CM-39 162: MH-17 22912.6 4.6 98.0 236 6236.8
CM-40 156: MH-13 2265.1 1.4 98.0 0.23 613.5
CM-41 155: MH-12 2265.1 1.4 98.0 0.23 616.6
CM-42 153: MH-11 2265.1 1.4 98.0 0.23 613.5

1
1
1
1
i

CM-43 188: CS-2 139827.6 9.2 74.0 5.45 14447.3
CM-44 191: CS-4 125932 2.4 76.1 6.13 14384.4
CM-45 200: CS-8 119702:9 7.1 74.0 4.88 12369.7
CM-46 197: CS-7 81457.2 4.7 74.0 3.54 8416.4
CM-47 195: CS-6 91040.4 7.3 75.8 4.05 10260.4
CM-48 218: CB-29 71264.2 5.2 94.5 6.92 17160.8

~ ~ ~ ~ ~ ~ ~ ~ ~ i ~ ~ ~ ~ ~ ~ ~ ~ ~
Honda Aeronautics, Greensboro, NC
Catchbasin Table
Label Ground Elev.(ft) Rim Elev.(ft) Capture Efficiency Is Flooded Ever? Max.Captured Flow (cfs) Max.Hydraulic Grade (ft)
CB-1 871.83 871.83 100% FALSE 0.77 859.30
CB-2 872.53 872.53 100% FALSE 0.80 860.46
CB-3 869.74 869.74 100% FALSE 0.58 860.74
CB-4 866.31 866.31 100% FALSE 1.13 862.31
CB-5 867.21 867.21 100% FALSE 1.10 862.26
CB-6 867.37 867.37 100% FALSE 0.91 862.01
CB-7 873.56 873.56 100% FALSE 0.87 869.52
CB-8 872.31 872.31 100% FALSE 1.52 868.03
CB-9 868.98 868.98 100% FALSE 1.04 860.78
CB-10 870.44 870.44 100% FALSE 0.55 861.62
CB-11 871.20 871.20 100% FALSE 0.62 863.34
CB-12 866.29 866.29 100% FALSE 2.73 861.14
CB-13 867.39 867.39 100% FALSE 0.69 861.16
CB-14 867.80 867.80 100% FALSE 0.90 861.48
CB-15 867.53 867.53 100% FALSE ~ 0.90 861.75
CB-16 871.81 871.81 100% FALSE 2.08 866.53
CB-17 872.06 872.06 100% FALSE 1.29 864.95
CB-18 876.04 876.04 100% FALSE 0.48 871.90
CB-19 875.02 875.02 100% FALSE 0.88 870.89
CB-20 873.94 873.94 100% FALSE 1.03 869.32
CB-21 878.23 878.23 100% FALSE 3.54 868.91
CB-22 880.83 880.83 100% FALSE 1.12 876.33
CB-23 882.58 882.58 100% FALSE 0.86 878.70
CB-24 880.83 880.83 100% FALSE 3.15 872.11
CB-25 880.44 880.44 100% FALSE 1.32 871.72
CB-26 879.60 879.60 100% FALSE 0.91 875.56
CB-28 882.30 882.30 100% FALSE 0.19 880.65
CB-29 877.50 877.50 100% FALSE 6.92 874.26

~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ r ~ ~ ~ ~ ~ ~
Honda Aeronautics, Greensboro, NC
Manhole Table
Label Diameter (ft) Headloss Method Ground Elevation (ft) Invert Elevation (ft) Max. Hydraulic Grade (ft) Is Flooded Ever?
MH-1 4 HEC-22 Headloss 867.00 851.65 854.04 FALSE
MH-10 4 HEC-22 Headloss 881.50 869.63 871.16 FALSE
MH-11 3 HEC-22 Headloss 882.58 878.33 878.70 FALSE
MH-12 3 HEC-22 Headloss 882.85 878.44 878.73 FALSE
MH-13 3 HEC-22 Headloss 883.33 878.68 878.89 FALSE
MH-14 3 HEC-22 Headloss 883.67 879.84 880.33 FALSE
MH-15 3 HEC-22 Headloss 883.56 879.46 880.18 FALSE
MH-16 3 HEC-22 Headloss 883.37 878.86 879.78 FALSE
MH-17 3 HEC-22 Headloss 883.40 878.15 879.06 FALSE
MH-18 3 HEC-22 Headloss 881.05 870.45 871.84 FALSE
MH-19 3 HEC-22 Headloss 881.00 869.77 871.23 FALSE
MH-20 3 HEC-22 Headloss 883.39 881.50 881.98 FALSE
MH-21 3 HEC-22 Headloss 882.55 880.64 881.29 FALSE
MH-22 3 HEC-22 Headloss 883.71 881.15 881.63 FALSE
MH-23 4 HEC-22 Headloss 858.00 851.23 854.09 TRUE

Honda Aeronautics, Greensboro, NC
Cross Section Table

Label
Manning's n
Section Type Left Side Slope
(H:V) Bottom Width
(ft) Right Side Slope
(H:V)
eight (ft Invert Elevation
(ft) Max.Hydraulic Grade
(ft)
CS-2 0.035 Trapezoidal 4 4 4 5 855.50 855.80
CS-3 0.035 Trapezoidal 4 4 4 5 855.00 855.35
CS-4 0.035 Trapezoidal 4 4 4 5 841.00 841.53
CS-5 0.035 Trapezoidal 4 4 4 5 840.00 840.60
CS-6 0.035 Trapezoidal 6 6 6 4 848.50 848.73
CS-7 0.035 Trapezoidal 6 6 6 4 832.50 832.97
CS-8 0.035 Trapezoidal 4 4 4 5 835.00 835.47
CS-12 0.035 Trapezoidal 10 10 10 3 849.00 849.33

i ~ ~ ~ ~ ~ ~ ~
Honda Aeronautics, Greensboro, NC
Conduit Table
~ s ~ ~ ~ ~ ~ a~ ~ ~ ~

Label
Start-node
Start IE
Stop-node
Stop IE
Length (ft)
Slope
Diameter (in)
Manning's 'n' Full Capacity
(cfs)
CO-1 17: MH-1 851.65 16: OF-2 851.0 129.5 0.5% 30 0.013 29.06
CO-2 19: CB-1 858.53 17: MH-1 851.7 118.3 5.8% 30 0.013 98.91
CO-3 21: CB-2 858.92 19: CB-1 858.5 77.3 0.5% 30 0.013 29.13
CO-4 23: CB-3 859.35 21: CB-2 858.9 86.0 0.5% 30 0.013 29.00
CO-5 39: CB-18 871.7 40: CB-19 870.6 71.0 1.6% 18 0.013 13.31
CO-6 40: CB-19 870.56 41: CB-20 869.4 71.0 1.6% 18 0.013 13.31
CO-7 41: CB-20 868.92 21: CB-2 867.8 71.0 1.6% 24 0.013 28.66
CO-8 28: CB-7 869.28 29: CB-8 867.6 71.0 2.3% 18 0.013 16.01
CO-9 29: CB-8 867.63 37: CB-16 866.0 71.0 2.3% 18 0.013 16.01
CO-10 37: CB-16 865.98 38: CB-17 864.3 71.0 2.3% 18 0.013 16.06
CO-11 38: CB-17 864.32 32: CB-11 862.7 71.0 2.3% 18 0.013 16.01
CO-12 32: CB-11 862.67 31: CB-10 861.0 71.0 2.3% 18 0.013 16.06
CO-13 31: CB-10 861.01 23: CB-3 859.4 71.0 2.3% 24 0.013 34.59
CO-14 33: CB-12 860.13 30: CB-9 859.6 110.2 0.5% 24 0.013 15.98
CO-15 30: CB-9 859.58 23: CB-3 859.4 45.0 0.5% 30 0.013 29.34
CO-16 , 25: CB-4 861.9 26: CB-5 861.7 42.3 0.5% 18 0.013 7.41
CO-17 26: CB-5 861.69 27: CB-6 861.3 71.0 0.5% 18 0.013 7.48
CO-18 27: CB-6 861.33 36: CB-15 861.0 71.0 0.5% 18 0.013 7.48
CO-19 36: CB-15 860.97 35: CB-14 860.6 71.0 0.5% 18 0.013 7.48
CO-20 35: CB-14 860.61 34: CB-13 860.3 71.0 0.5% 18 0.013 7.48
CO-21 34: CB-13 860.25 33: CB-12 860.1 22.3 0.5% 18 0.013 7.71
CO-26 61: CB-23 878.3 60: CB-22 876.0 227.5 1.0% 18 0.013 10.49
CO-27 60: CB-22 875.53 59: CB-21 873.0 94.5 2.7% 24 0.013 37.17
CO-33 84: CB-26 875.35 83: MH-10 873.3 48.0 4.2% 18 0.013 21.56
CO-34 83: MH-10 869.63 59: CB-21 868.2 287.0 0.5% 30 0.013 29.05
CO-38 138: CB-2 879.9 62: CB-24 877.8 104.1 2.0% 18 0.013 14.85
CO-39 153: MH-1 878.33 61: CB-23 878.3 6.1 0.5% 15 0.013 4.55

CO-40 156: MH-1 878.68 155: MH-1 878.4 48.3 0.5% 15 0.013 4.55
CO-41 155: MH-1 878.44 61: CB-23 878.3 26.9 0.5% 15 0.013 4.66
CO-42 159: MH-1 879.84 160: MH-1 879.5 37.9 1.0% 18 0.013 10.52
CO-43 160: MH-1 879.46 161: MH-1 878.9 59.4 1.0% 18 0.013 10.56
CO-44 161: MH-1 878.86 162: MH-1 878.6 30.3 1.0% 18 0.013 10.28
CO-45 162: MH-1 878.15 60: CB-22 876.8 136.6 1.0% 24 0.013 22.65
CO-46 63: CB-25 870.28 168: MH-1 869.8 101.2 0.5% 30 0.013 29.12
CO-47 168: MH-1 869.77 83: MH-10 869.6 26.8 0.5% 30 0.013 29.65
CO-48 62: CB-24 870.7 167: MH-1 870.5 49.3 0.5% 30 0.013 29.20
CO-49 167: MH-1 870.45 63: CB-25 870.3 33.7 0.5% 30 0.013 29.15
CO-50 175: MH-2 881.5 176: MH-2 880.6 42.6 2.0% 12 0.013 5.06
CO-51 176: MH-2 880.64 138: CB-2 880.4 11.9 2.0% 15 0.013 9.16
CO-52 177: MH-2 881.15 138: CB-2 880.4 38.0 2.0% 12 0.013 5.01
CO-54 218: CB-2 873.5 62: CB-24 870.7 280.0 1.0% 24 0.013 22.62
CO-55 59: CB-21 868.19 289: MH-2 851.2 82.9 20.5% 30 0.013 185.51
CO-56 289: MH-2 851.23 15: OF-1 851.0 45.7 0.5% 30 0.013 29.11
CO-57 203: OS-1 849.3 297: CS-12 849.0 60.0 0.5% 36 0.013 47.16

1
Honda Aeronautics, Greensboro, NC
,Channel Table
~ Start Invert Stop Invert Length Max.Flow Max.Velocity
Label
CH
2 Start-node
1 Stop-node (ft) (ft) (ft) Slope (cfs) (ft/s)
- 88: CS-2 189: CS-3 855.50 855.00 10 5.0% 5.37 3.50
CH-3 189: CS-3 191: CS-4 855.00 841.00 532 2.6% 5.37 2.83
CH-4 191: CS-4 192: CS-5 841.00 840.00 160 0.6% 10.99 2.13
CH-5 195: CS-6 197: CS-7 848.50 832.50 580 2.8% 4.05 2.33
CH-6 197: CS-7 196: OF-3 832.50 831.50 14.5 6.9% 25.84 5.69
CH-7 200: CS-8 197: CS-7 835.00 832.50 72.25 3.5% 21.68 4.69
CH-8 192: CS-5 200: CS-8 840.00 835.00 340 1.5% 10.99 2.89
CH-16 297: CS-12 200: CS-8 849.00 835.00 339 4.1% 15.35 3.84
1
1
1
1
1
1
1
1

Honda Aeronautics, Greensboro, NC

Pond Table

Label
Volume Type Initial Elevation
(ft) Max.Hydraulic Grade
(ft) Max. Storage
(cu.ft.)
PO-1 Elevation-Area 849.50 854.02 74543.46
Outlet Structures

1

1

Id Label Upstream Pond Has Control Structure
203 OS-1 184: PO-1 Yes
1

1

1

~4
~E
1~
1
1
1
1
855
$ 854
-0 853
m
~ 852
~ 851
= 850
849
45.0
40.0
35.0
$ 30.0
0 25.0
~ 20.0
15.0
10.0
5.0
0.0
120000
100000
80000
60000
40000
20000
0
10 Year Pond Data
---

u
Z
4
6
S
10 12 14
Time (hours)
16
18
20
22
24

s
1

1

1

I
Honda Aeronautics, Greensboro, NC
Catchment Table

Label
Outflow Node Area
(sq.ft.) Tc
(min) Composite
SCS CN Peak Flow
(cfs) Total Runoff Vol.
(cu.ft.)
CM-2 25: CB-4 10977 1.2 98.0 1.66 4448.4
CM-3 26: CB-5 10716 1.3 98.0 1.62 4338.7
CM-4 27: CB-6 8799.1 1.3 98.0 1.33 3568.3
CM-5 36: CB-15 8755.6 1.4 98.0 1.32 3552.6
CM-6 35: CB-14 8755.6 1.4 98.0 1.32 3554.9
CM-7 34: CB-13 6664.7 1.4 98.0 1.01 2700.5
CM-8 33: CB-12 4399.6 2.4 98.0 0.66 1782.2
CM-9 33: CB-12 32714 6.3 74.0 2.75 6664.1
CM-10 33: CB-12 9104 2.8 98.0 1.37 3689.1
CM-11 30: CB-9 10062 1.6 98.0 1.52 4077.5
CM-12 28: CB-7 13024 3.4 83.1 1.52 3542.8
CM-13 29: CB-8 17598 4.0 90.1 2.41 5841.1
CM-14 37: CB-16 28880 4.1 84.9 3.53 8294.9
CM-15 38: CB-17 15769 4.1 88.4 2.08 4998.1
CM-16 32: CB-11 6011.3 1.5 98.0 0.91 2439.3
CM-17 31: CB-10 5314.3 1.4 98.0 0.80 2148.4
CM-18 23: CB-3 5619.2 1.7 98.0 0.85 2269.5
CM-19 39: CB-18 4704.5 1.3 98.0 0.71 1905.8
CM-20 40: CB-19 9626.8 2.5 92.0 1.36 3366.9
CM-21 41: CB-20 11456 2.3 91.1 1.61 3930.1
CM-22 21: CB-2 9104 2.1 90.4 1.26 3068.9
CM-23 19: CB-1 8102.2 1.8 92.8 1.18 2933.5
CM-24 61: CB-23 8320 2.3 98.0 1.26 3371.4
CM-25 60: CB-22 10759 1.9 98.0 1.64 4404.6
CM-26 59: CB-21 35937 2.8 95.1 5.30 13567.3
CM-27 84: CB-26 8799.1 1.3 98.0 1.33 3564.9
CM-28 63: CB-25 17468 3.1 86.1 2.19 5188.6
CM-29 62: CB-24 38071 2.2 90.7 4.94 12052.1
CM-30 138: CB-28 2265.1 1.1 89.0 0.30 730.2
CM-31 175: MH-20 22390 4.6 98.0 3.38 9073.6
CM-32 176: MH-21 22390 4.6 98.0 3.38 9073.6
CM-33 167: MH-18 3964 2.1 98.0 0.60 1611.1
CM-34 168: MH-19 3964 2.1 98.0 0.60 1605.7
CM-35 177: MH-22 22390 4.6 98.0 3.38 9073.6
CM-36 159: MH-14 22913 4.6 98.0 3.46 9285.5
CM-37 160: MH-15 22913 4.6 98.0 3.46 9285.5
CM-38 161: MH-16 22913 4.6 98.0 3.46 9285.5
CM-39 162: MH-17 22913 4.6 98.0 3.46 9285.5
CM-40 156: MH-13 2265.1 1.4 98.0 0.34 916.4
CM-41 155: MH-12 2265.1 1.4 98.0 0.34 920.9
CM-42 153: MH-11 2265.1 1.4 98.0 0.34 916.4

1
1

1

CM-43 188: CS-2 139828 9.2 74.0 10.89 28480.8
CM-44 191: CS-4 125932 2.4 76.1 11.92 27553.0
CM-45 . 200: CS-8 119703 7.1 74.0 9.88 24384.8
CM-46 197: CS-7 81457 4.7 74.0 7.17 16591.8
CM-47 195: CS-6 91040 7.3 75.8 7.94 19728.7
CM-48 218: CB-29 71264 5.2 94.5 10.41 26515.0

r rr r ~ ~ ~ ~ s r ~a r~ rr ~ r^t r ~ ~ ~ r
Honda Aeronautics, Greensboro, NC
Catchbasin Table
Label Ground Elev.(ft) Invert Elevation (ft) Capture Efficiency Is Flooded Ever? Max.Captured Flow (cfs) Max.Hydraulic Grade (ft)
CB-1 871.83 858.53 100% FALSE 1.18 859.50
CB-2 872.53 858.92 100% FALSE 1.26 860.95
CB-3 869.74 859.35 100% FALSE 0.85 861.18
CB-4 866.31 861.90 100% FALSE 1.66 862.41
CB-5 867.21 861.69 100% FALSE 1.62 862.40
CB-6 867.37 861.33 100% FALSE 1.33 862.19
CB-7 873.56 869.28 100% FALSE 1.52 869.60
CB-8 872.31 867.63 100% FALSE 2.41 868.15
CB-9 868.98 859.58 100% FALSE 1.52 861.23
CB-10 870.44 861.01 100% FALSE 0.80 861.81
CB-11 871.20 862.67 100% FALSE 0.91 863.58
CB-12 866.29 860.13 100% FALSE 4.78 861.46
CB-13 867.39 860.25 100% FALSE 1.01 861.49
CB-14 867.80 860.61 100% FALSE 1.32 861.73
CB-15 867.53 860.97 100% FALSE 1.32 861.97
CB-16 871.81 865.98 100% FALSE 3.53 866.72
CB-17 872.06 864.32 100% FALSE 2.08 865.18
CB-18 876.04 871.70 100% FALSE 0.71 871.94
CB-19 875.02 870.56 100% FALSE 1.36 870.97
CB-20 873.94 868.92 100% FALSE 1.61 869.41
CB-21 878.23 868.19 100% FALSE 5.30 869.07
CB-22 880.83 875.53 100% FALSE 1.64 876.51
CB-23 882.58 878.30 100% FALSE 1.26 878.79
CB-24 880.83 870.70 100% FALSE 4.94 872.47
CB-25 880.44 870.28 100% FALSE 2.19 872.14
CB-26 879.60 875.35 100% FALSE 1.33 875.60
CB-28 882.30 879.90 100% FALSE 0.30 880.85
CB-29 877.50 873.50 100% FALSE 10.41 874.45

r ~ ~ ~ ~ r r ~ rr ~ ~ r ~ ~ ~ ~ ~ s ~
Honda Aeronautics, Greensboro, NC
Manhole Table
Label Diameter (ft) Headloss Method Ground Elevation (ft) Invert Elevation (ft) Max. Hydraulic Grade (ft) Is Flooded Ever?
MH-1 4 HEC-22 Headloss 867.00 851.65 855.05 TRUE
MH-10 4 HEC-22 Headloss 881.50 869.63 871.67 FALSE
MH-11 3 HEC-22 Headloss 882.58 878.33 878.79 FALSE
MH-12 3 HEC-22 Headloss 882.85 878.44 878.80 FALSE
MH-13 3 HEC-22 Headloss 883.33 878.68 878.92 FALSE
MH-14 3 HEC-22 Headloss 883.67 879.84 880.47 FALSE
MH-15 3 HEC-22 Headloss 883.56 879.46 880.39 FALSE
MH-16 3 HEC-22 Headloss 883.37 878.86 880.08 FALSE
MH-17 3 HEC-22 Headloss 883.40 878.15 879.29 FALSE
MH-18 3 HEC-22 Headloss 881.05 870.45 872.22 FALSE
MH-19 3 HEC-22 Headloss 881.00 869.77 871.75 FALSE
MH-20 3 HEC-22 Headloss 883.39 881.50 882.10 FALSE
MH-21 3 HEC-22 Headloss 882.55 880.64 881.47 FALSE
MH-22 3 HEC-22 Headloss 883.71 881.15 881.75 FALSE
MH-23 4 HEC-22 Headloss 858.00 851.23 855.09 TRUE

Honda Aeronautics, Greensboro, NC
Cross Section Table
~ ~ ~ ~ ~ ~

Label
Manning's n
Section Type Left Side Slope
(H:V) Bottom Width
(ft) Right Side Slope
(H:V)
eight (ft Invert Elevation
(ft) Max.Hydraulic Grade
(ft)
CS-2 0.035 Trapezoidal 4 4 4 5 855.50 855.93
CS-3 0.035 Trapezoidal 4 4 4 5 855.00 855.51
CS-4 0.035 Trapezoidal 4 4 4 5 841.00 841.79
CS-5 0.035 Trapezoidal 4 4 4 5 840.00 840.84
CS-6 0.035 Trapezoidal 6 6 6 4 848.50 848.84
CS-7 0.035 Trapezoidal 6 6 6 4 832.50 8.33.22
CS-8 0.035 Tra ezoidal 4 4 4 5 835.00 835.67
CS-12 0.035 Trapezoidal 10 10 10 3 849.00 849.57

~r ~ ~ ~ ~ rr wt s ~ ~ ~ rr ~ ~ rf ~ ~ ~ r
Honda Aeronautics, Greensboro, NC
Conduit Table

Label
Start-node
Start IE
Stop-node
Stop IE
Length (ft)
Slope
Diameter (in)
Manning's 'n' Full Capacity
(cfs)
CO-1 17: MH-1 851.65 16: OF-2 851.0 129.5 0.5% 30 0.013 29.06
CO-2 19: CB-1 858.53 17: MH-1 851.7 118.3 5.8% 30 0.013 98.91
CO-3 21: CB-2 858.92 19: CB-1 858.5 77.3 0.5% 30 0.013 29.13
CO-4 23: CB-3 859.35 21: CB-2 858.9 86.0 0.5% 30 0.013 29.00
CO-5 39: CB-18 871.7 40: CB-19 870.6 71.0 1.6% 18 0.013 13.31
CO-6 40: CB-19 870.56 41: CB-20 869.4 71.0 1.6% 18 0.013 13.31
CO-7 41: CB-20 868.92 21: CB-2 867.8 71.0 1.6% 24 0.013 28.66
CO-8 28: CB-7 869.28 29: CB-8 867.6 71.0 2.3% 18 0.013 16.01
CO-9 29: CB-8 867.63 37: CB-16 866.0 71.0 2.3% 18 0.013 16.01
CO-10 37: CB-16 865.98 38: CB-17 864.3 71.0 2.3% 18 0.013 16.06
CO-11 38: CB-17 864.32 32: CB-11 862.7 71.0 2.3% 18 0.013 16.01
CO-12 32: CB-11 862.67 31: CB-10 861.0 71.0 2.3% 18 0.013 16.06
CO-13 31: CB-10 861.01 23: CB-3 859.4 71.0 2.3% 24 0.013 34.59
CO-14 33: CB-12 860.13 30: CB-9 859.6 110.2 0.5% 24 0.013 15.98
CO-15 30: CB-9 859.58 23: CB-3 859.4 45.0 0.5% 30 0.013 29.34
CO-16 , 25: CB-4 861.9 26: CB-5 861.7 42.3 0.5% 18 0.013 7.41
CO-17 26: CB-5 861.69 27: CB-6 861.3 71.0 0.5% 18 0.013 7.48
CO-18 27: CB-6 861.33 36: CB-15 861.0 71.0 0.5% 18 0.013 7.48
CO-19 36: CB-15 860.97 35: CB-14 860.6 71.0 0.5% 18 0.013 7.48
CO-20 35: CB-14 860.61 34: CB-13 860.3 71.0 0.5% 18 0.013 7.48
CO-21 34: CB-13 860.25 33: CB-12 860.1 22.3 0.5% 18 0.013 7.71
CO-26 61: CB-23 878.3 60: CB-22 876.0 227.5 1.0% 18 0.013 10.49
CO-27 60: CB-22 875.53 59: CB-21 873.0 94.5 2.7% 24 0.013 37.17
CO-33 84: CB-26 875.35 83: MH-10 873.3 48.0 4.2% 18 0.013 21.56
CO-34 83: MH-10 869.63 59: CB-21 868.2 287.0 0.5% 30 0.013 29.05
CO-38 138: CB-2 879.9 62: CB-24 877.8 104.1 2.0% 18 0.013 14.85
CO-39 153: MH-1 878.33 61: CB-23 878.3 6.1 0.5% 15 0.013 4.55

~ r r r rr rr rr rr r ~^r rr err r~ rr rs rr rr rr r~
CO-40 156: MH-1 878.68 155: MH-1 878.4 48.3 0.5% 15 0.013 4.55
CO-41 155: MH-1 878.44 61: CB-23 878.3 26.9 0.5% 15 0.013 4.66
CO-42 159: MH-1 879.84 160: MH-1 879.5 37.9 1.0% 18 0.013 10.52
CO-43 160: MH-1 879.46 161: MH-1 878.9 59.4 1.0% 18 0.013 10.56
CO-44 161: MH-1 878.86 162: MH-1 878.6 30.3 1.0% 18 0.013 10.28
CO-45 162: MH-1 878.15 60: CB-22 876.8 136.6 1.0% 24 0.013 22.65
CO-46 63: CB-25 870.28 168: MH-1 869.8 101.2 0.5% 30 0.013 29.12
CO-47 168: MH-1 869.77 83: MH-10 869.6 26.8 0.5% 30 0.013 29.65
CO-48 62: CB-24 870.7 167: MH-1 870.5 49.3 0.5% 30 0.013 29.20
CO-49 167: MH-1 870.45 63: CB-25 870.3 33.7 0.5% 30 0.013 29.15
CO-50 175: MH-2 881.5 176: MH-2 880.6 42.6 2.0% 12 0.013 5.06
CO-51 176: MH-2 880.64 138: CB-2 880.4 11.9 2.0% 15 0.013 9.16
CO-52 177: MH-2 881.15 138: CB-2 880.4 38.0 2.0% 12 0.013 5.01
CO-54 218: CB-2 873.5 62: CB-24 870.7 280.0 1.0% 24 0.013 22.62
CO-55 59: CB-21 868.19 289: MH-2 851.2 82.9 20.5% 30 0.013 185.51
CO-56 289: MH-2 851.23 15: OF-1 851.0 45.7 0.5% 30 0.013 29.11
CO-57 203: OS-1 849.3 297: CS-12 849.0 60.0 0.5% 36 0.013 47.16

Honda Aeronautics, Greensboro, NC
Channel Table

Label
Start-node
Stop-node Start Invert
(ft) Stop Invert
(ft) Length
(ft)
Slope Max.Flow
(cfs) Max.Velocity
(ft/s)
CH-2 188: CS-2 189: CS-3 855.50 855.00 10 5.0% 10.89 4.43
CH-3 189: CS-3 191: CS-4 855.00 841.00 532 2.6% 10.89 3.54
CH-4 191: CS-4 192: CS-5 841.00 840.00 160 0.6% 21.60 2.57
CH-5 195: CS-6 197: CS-7 848.50 832.50 580 2.8% 7.81 2.87
CH-6 197: CS-7 196: OF-3 832.50 831.50 14.5 6.9% 66.10 7.53
CH-7 200: CS-8 197: CS-7 835.00 832.50 72.25 3.5% 52.87 5.77
CH-8 192: CS-5 200: CS-8 840.00 835.00 340 1.5% 21.60 3.50
CH-16 297: CS-12 200: CS-8 849.00 835.00 339 4.1% 42.03 5.19
1
1
1
1
1
1
1
1
1
1
1
1

Honda Aeronautics, Greensboro, NC

1
Pond Table

Label
Volume Type Initial Elevation
(ft) Max.Hydraulic Grade
(ft) Max. Storage
(cu.ft.)
PO-1 Elevation-Area 849.50 854.98 100,059.21
Outlet Structures

e
1
1

1
1

Id Label Upstream Pond Has Control Structure
203 OS-1 184: PO-1 Yes

~ a=s
1
1
1
1
1~
0

$ 855
m 854
853
•~ 852
m
T 851
= 850
849
90
80
70
$ 60
0 50
~ 40
30
20
10
0
120000
100000
80000
60000
40000
20000
0
100 Year Pond Data

0
2
4
6
8
10 12 14
Time (hours)
16
18
20
22
24

1

1

1

1
1

Honda Aeronautics, Greensboro, NC
Catchment Table

Label
Outflow Node Area
(sq.ft.) Tc
(min) Composite
SCS CN Peak Flow
(cfs) Total Runoff Vol.
(cu.ft.)
CM-2 25: CB-4 10977 1.2 98.0 2.44 6641.6
CM-3 26: CB-5 10716 1.3 98.0 2.38 6478.1
CM-4 27: CB-6 8799.1 1.3 98.0 1.96 5327.9
CM-5 36: CB-15 8755.6 1.4 98.0 1.95 5304.4
CM-6 35: CB-14 8755.6 1.4 98.0 1.95 5307.8
CM-7 34: CB-13 6664.7 1.4 98.0 1.48 .4032.2
CM-8 33: CB-12 4399.6 2.4 98.0 0.98 2661.7
CM-9 33: CB-12 32714 6.3 74.0 5.04 12217.4
CM-10 33: CB-12 9104 2.8 98.0 2.03 5508.3
CM-11 30: CB-9 10062 1.6 98.0 2.24 6088.2
CM-12 28: CB-7 13024 3.4 83.1 2.50 5966.8
CM-13 29: CB-8 17598 4.0 90.1 3.71 9276.3
CM-14 37: CB-16 28880 4.1 84.9 5.70 13755.6
CM-15 38: CB-17 15769 4.1 88.4 3.26 8048.7
CM-16 32: CB-11 6011.3 1.5 98.0 1.34 3642.4
CM-17 31: CB-10 5314.3 1.4 98.0 1.18 3208.2
CM-18 23: CB-3 5619.2 1.7 98.0 1.25 3388.8
CM-19 39: CB-18 4704.5 1.3 98.0 1.05 2846.1
CM-20 40: CB-19 9626.8 2.5 92.0 2.07 5265.9
CM-21 41: CB-20 11456 2.3 91.1 2.46 6193.7
CM-22 21: CB-2 9104 2.1 90.4 1.94 4861.9
CM-23 19: CB-1 8102.2 1.8 92.8 1.78 4558.8
CM-24 61: CB-23 8320 2.3 98.0 1.85 5033.9
CM-25 60: CB-22 10759 1.9 98.0 2.42 6576.4
CM-26 59: CB-21 35937 2.8 95.1 7.91 20713.5
CM-27 84: CB-26 8799.1 1.3 98.0 1.96 5322.8
CM-28 63: CB-25 17468 3.1 86.1 3.50 8511.6
CM-29 62: CB-24 38071 2.2 90.7 7.59 19051.7
CM-30 138: CB-28 2265.1 1.1 89.0 0.47 1173.0
CM-31 175: MH-20 22390 4.6 98.0 4.99 13547.1
CM-32 176: MH-21 22390 4.6 98.0 4.99 13547.1
CM-33 167: MH-18 3964 2.1 98.0 0.89 2406.2
CM-34 168: MH-19 3964 2.1 98.0 0.88 2398.1
CM-35 177: MH-22 22390 4.6 98.0 4.99 13547.1
CM-36 159: MH-14 22913 4.6 98.0 5.10 13863.4
CM-37 160: MH-15 22913 4.6 98.0 5.10 13863.4
CM-38 161: MH-16 22913 4.6 98.0 5.10 13863.4
CM-39 162: MH-17 22913 4.6 98.0 5.10 13863.4
CM-40 156: MH-13 2265.1 1.4 98.0 0.50 1369.8
CM-41 155: MH-12 2265.1 1.4 98.0 0.51 1376.6
CM-42 153: MH-11 2265.1 1.4 98.0 0.50 1369.8

1

1
1

i

t

1
CM-43 188: CS-2 139828 9.2 74.0 19.93 52213.8
CM-44 191: CS-4 125932 2.4 76.1 21.22 49476.5
CM-45 200: CS-8 119703 7.1 74.0 18.07 44704.3
CM-46 197: CS-7 81457 4.7 74.0 13.10 30417.9
CM-47 195: CS-6 91040 7.3 75.8 14.22 35524.5
CM-48 218: CB-29 71264 5.2 94.5 15.59 40654.6

rr rr r~ ~r ~r r ~r ri rr rr r r ~ +rr r~ r~ rr r ~r
Honda Aeronautics, Greensboro, NC
Catchbasin Table
Label Ground Elev.(ft) Invert Elevation (ft) Capture Efficiency Is Flooded Ever? Max.Captured Flow (cfs) Max.Hydraulic Grade (ft)
CB-1 871.83 858.53 100% FALSE 1.78 859.75
CB-2 872.53 858.92 100% TRUE 1.94 862.10
CB-3 869.74 859.35 100% TRUE 1.25 862.47
CB-4 866.31 861.90 100% TRUE 2.44 863.67
CB-5 867.21 861.69 100% TRUE 2.38 863.66
CB-6 867.37 861.33 100% TRUE 1.96 863.64
CB-7 873.56 869.28 100% FALSE 2.50 869.68
CB-8 872.31 867.63 100% FALSE 3.71 868.30
CB-9 868.98 859.58 100% TRUE 2.24 862.55
CB-10 870.44 861.01 100% FALSE 1.18 862.53
CB-11 871.20 862.67 100% FALSE 1.34 863.96
CB-12 866.29 860.13 100% TRUE 8.05 862.73
CB-13 867.39 860.25 100% TRUE 1.48 862.81
CB-14 867.80 860.61 100% TRUE 1.95 863.27
CB-15 867.53 860.97 100% TRUE 1.95 863.54
CB-16 871.81 865.98 100% FALSE 5.70 866.97
CB-17 872.06 864.32 100% FALSE 3.26 865.51
CB-18 876.04 871.70 100% FALSE 1.05 871.99
CB-19 875.02 870.56 100% FALSE 2.07 871.06
CB-20 873.94 868.92 100% FALSE 2.46 869.53
CB-21 878.23 868.19 100% FALSE 7.91 869.29
CB-22 880.83 875.53 100% FALSE 2.42 876.77
CB-23 882.58 878.30 100% FALSE 1.85 878.90
CB-24 880.83 870.70 100% TRUE 7.59 874.26
CB-25 880.44 870.28 100% TRUE 3.50 874.10
CB-26 879.60 875.35 100% FALSE 1.96 875.65
CB-28 882.30 879.90 100% FALSE 0.47 881.19
CB-29 877.50 873.50 100% FALSE 15.59 874.85

~ ~ ~ ~ ~ r ~ ~ ~ ~ ~ ~ ~ +~ ~ ~ ~ ~ ~
Honda Aeronautics, Greensboro, NC
Manhole Table
Label Diameter (ft) Headloss Method Ground Elevation (ft) Invert Elevation (ft) Max. Hydraulic Grade (ft) Is Flooded Ever?
MH-1 4 HEC-22 Headloss 867.00 851.65 857.04 TRUE
MH-10 4 HEC-22 Headloss 881.50 869.63 873.81 TRUE
MH-11 3 HEC-22 Headloss 882.58 878.33 878.90 FALSE
MH-12 3 HEC-22 Headloss 882.85 878.44 878.90 FALSE
MH-13 3 HEC-22 Headloss 883.33 878.68 878.97 FALSE
MH-14 3 HEC-22 Headloss 883.67 879.84 881.27 FALSE
MH-15 3 HEC-22 Headloss 883.56 879.46 881.25 TRUE
MH-16 3 HEC-22 Headloss 883.37 878.86 880.87 TRUE
MH-17 3 HEC-22 Headloss 883.40 878.15 879.64 FALSE
MH-18 3 HEC-22 Headloss 881.05 870.45 874.18 TRUE
MH-19 3 HEC-22 Headloss 881.00 869.77 873.89 TRUE
MH-20 3 HEC-22 Headloss 883.39 881.50 882.37 FALSE
MH-21 3 HEC-22 Headloss 882.55 880.64 881.77 FALSE
MH-22 3 HEC-22 Headloss 883.71 881.15 881.96 FALSE
MH-23 4 HEC-22 Headloss 858.00 851.23 856.81 TRUE

Honda Aeronautics, Greensboro, NC
Cross Section Table

Label
Manning's n
Section Type Left Side Slope
(H:V) Bottom Width
(ft) Right Side Slope
(H:V)
eight (ft Invert Elevation
(ft) Max.Hydraulic Grade
(ft)
CS-2 0.035 Trapezoidal 4 4 4 5 855.50 856.09
CS-3 0.035 Trapezoidal 4 4 4 5 855.00 855.69
CS-4 0.035 Trapezoidal 4 4 4 5 841.00 842.20
CS-5 0.035 Trapezoidal 4 4 4 5 840.00 841.12
CS-6 0.035 Trapezoidal 6 6 6 4 848.50 848.96
CS-7 0.035 Trapezoidal 6 6 6 4 832.50 833.66
CS-8 0.035 Tra ezoidal 4 4 4 5 835.00 836.36
CS-12 0.035 Trapezoidal 10 10 10 3 849.00 849.83

i ~ i i i i ~ i i i i i i i i i i i i
Honda Aeronautics, Greensboro, NC
Conduit Table

Label
Start-node
Start IE
Stop-node
Stop IE
Length (ft)
Slope
Diameter (in)
Manning's 'n' Full Capacity
(cfs)
CO-1 17: MH-1 851.65 16: OF-2 851.0 129.5 0.5% 30 0.013 29.06
CO-2 19: CB-1 858.53 17: MH-1 851.7 118.3 5.8% 30 0.013 98.91
CO-3 21: CB-2 858.92 19: CB-1 858.5 77.3 0.5% 30 0.013 29.13
CO-4 23: CB-3 859.35 21: CB-2 858.9 86.0 0.5% 30 0.013 29.00
CO-5 39: CB-18 871.7 40: CB-19 870.6 71.0 1.6% 18 0.013 13.31
CO-6 40: CB-19 870.56 41: CB-20 869.4 71.0 1.6% 18 0.013 13.31
CO-7 41: CB-20 868.92 21: CB-2 867.8 71.0 1.6% 24 0.013 28.66
CO-8 28: CB-7 869.28 29: CB-8 867.6 71.0 2.3% 18 0.013 16.01
CO-9 29: CB-8 867.63 37: CB-16 866.0 71.0 2.3% 18 0.013 16.01
CO-10 37: CB-16 865.98 38: CB-17 864.3 71.0 2.3% 18 0.013 16.06
CO-11 38: CB-17 864.32 32: CB-11 862.7 71.0 2.3% 18 0.013 16.01
CO-12 32: CB-11 862.67 31: CB-10 861.0 71.0 2.3% 18 0.013 16.06
CO-13 31: CB-10 861.01 23: CB-3 859.4 71.0 2.3% 24 0.013 34.59
CO-14 33: CB-12 860.13 30: CB-9 859.6 110.2 0.5% 24 0.013 15.98
CO-15 30: CB-9 859.58 23: CB-3 859.4 45.0 0.5% 30 0.013 29.34
CO-16 . 25: CB-4 861.9 26: CB-5 861.7 42.3 0.5% 18 0.013 7.41
CO-17 26: CB-5 861.69 27: CB-6 861.3 71.0 0.5% 18 0.013 7.48
CO-18 27: CB-6 861.33 36: CB-15 861.0 71.0 0.5% 18 0.013 7.48
CO-19 36: CB-15 860.97 35: CB-14 860.6 71.0 0.5% 18 0.013 7.48
CO-20 35: CB-14 860.61 34: CB-13 860.3 71.0 0.5% 18 0.013 7.48
CO-21 34: CB-13 860.25 33: CB-12 860.1 22.3 0.5% 18 0.013 7.71
CO-26 61: CB-23 878.3 60: CB-22 876.0 227.5 1.0% 18 0.013 10.49
CO-27 60: CB-22 875.53 59: CB-21 873.0 94.5 2.7% 24 0.013 37.17
CO-33 84: CB-26 875.35 83: MH-10 873.3 48.0 4.2% 18 0.013 21.56
CO-34 83: MH-10 869.63 59: CB-21 868.2 287.0 0.5% 30 0.013 29.05
CO-38 138: CB-2 879.9 62: CB-24 877.8 104.1 2.0% 18 0.013 14.85
CO-39 153: MH-1 878.33 61: CB-23 878.3 6.1 0.5% 15 0.013 4.55

~ . . a~ r . . ~^^~ . ~ r . . r . . . . a
CO-40 156: MH-1 878.68 155: MH-1 878.4 48.3 0.5% 15 0.013 4.55
CO-41 155: MH-1 878.44 61: CB-23 878.3 26.9 0.5% 15 0.013 4.66
CO-42 159: MH-1 879.84 160: MH-1 879.5 37.9 1.0% 18 0.013 10.52
CO-43 160: MH-1 879.46 161: MH-1 878.9 59.4 1.0% 18 0.013 10.56
CO-44 161: MH-1 878.86 162: MH-1 878.6 30.3 1.0% 18 0.013 10.28
CO-45 162: MH-1 878.15 60: CB-22 876.8 136.6 1.0% 24 0.013 22.65
CO-46 63: CB-25 870.28 168: MH-1 869.8 101.2 0.5% 30 0.013 29.12
CO-47 168: MH-1 869.77 83: MH-10 869.6 26.8 0.5% 30 0.013 29.65
CO-48 62: CB-24 870.7 167: MH-1 870.5 49.3 0.5% 30 0.013 29.20
CO-49 167: MH-1 870.45 63: CB-25 870.3 33.7 0.5% 30 0.013 29.15
CO-50 175: MH-2 881.5 176: MH-2 880.6 42.6 2.0% 12 0.013 5.06
CO-51 176: MH-2 880.64 138: CB-2 880.4 11.9 2.0% 15 0.013 9.16
CO-52 177: MH-2 881.15 138: CB-2 880.4 38.0 2.0% 12 0.013 5.01
CO-54 218: CB-2 873.5 62: CB-24 870.7 280.0 1.0% 24 0.013 22.62
CO-55 59: CB-21 868.19 289: MH-2 851.2 82.9 20.5% 30 0.013 185.51
CO-56 289: MH-2 851.23 15: OF-1 851.0 45.7 0.5% 30 0.013 29.11
CO-57 203: OS-1 849.3 297: CS-12 849.0 60.0 0.5% 36 0.013 47.16

1
Honda Aeronautics, Greensboro, NC
Channel Table

Label
Start-node
Stop-node Start Invert
(ft) Stop Invert
(ft) Length
(ft)
Slope Max.Flow
(cfs) Max.Velocity
(ft/s)
CH-2 188: CS-2 189: CS-3 855.50 855.00 10 5.0% 19.93 5.32
CH-3 189: CS-3 191: CS-4 855.00 841.00 532 2.6% 19.93 4.25
CH-4 191: CS-4 192: CS-5 841.00 840.00 160 0.6% 39.37 3.01
CH-5 195: CS-6 197: CS-7 848.50 832.50 580 2.8% 13.88 3.44
CH-6 197: CS-7 196: OF-3 832.50 831.50 14.5 6.9% 142.85 9.24
CH-7 200: CS-8 197: CS-7 835.00 832.50 72.25 3.5% 121.67 7.57
CH-8 192: CS-5 200: CS-8 840.00 835.00 340 1.5% 39.37 4.15
CH-16 297: CS-12 200: CS-8 849.00 835.00 339 4.1% 87.68 6.35
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Honda Aeronautics, Greensboro, NC

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Pond Table

Label
Volume Type Initial Elevation
(ft) Max.Hydraulic Grade
(ft) Max. Storage
(cu.ft.)
PO-1 Elevation-Area 849.50 855.72 121,325.76
' Outlet Structures
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Id Label Upstream Pond Has Control Structure
203 OS-1 184: PO-1 Yes