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DETENTION STUDY
A & M CONSOLIDATED HIGH SCHOOL
CITY OF COLLEGE STATION, TEXAS
FOR
CHEATAM AND ASSOCIATES
1601 EAST LAMAR, SUITE 200
ARLINGTON, TEXAS 76011
BY
MORRISON HYDROLOGY/ENGINEERING, INC.
210 ARNOLD
ARLINGTON, TEXAS 76010
DATED
APRIL 1996
REVISED
MAY 1996
Table of Contents
Introduction
Peak Discharge Determination
Proposed Detention
Summary
Figures
Figure 1 Watershed Map
Tables
Table 1 Summary of Existing Condition Peak Discharges
Table 2 Summary of Proposed Condition Peak Discharges
Table 3 Detention Storage and Outflows
Appendix
1. Existing Condition Discharge Determinations
2 . Proposed Condition Discharge and Storage Estimates
3. Detention Routing
Introduction
Th e purpos e of this study is to determine the existing 5 , 10 , 25 , 50 and 100 year dis charge for
the College Station High School Site and to design sufficient detention storage and outfall along
with proposed improvements to the High School to limit the outflow to no more than the existing
5 year discharge .
The Rational Method was used for this study to determine existing and proposed d ischarges
us ing the Intensity Duration Frequency curves , runoff coefficients and other parameters as
described in the city drainage requirements.
Storage measurements were made using CADD procedures, and the outfall details were
dete rmined from field measurements of existing outfalls.
Peaks Discharge Determinations
Appendix 1 contains the details of the peaks discharge determinations . Each area on the site
was divided into grassed and paved areas , us i ng a coefficient of 0.35 for grassed areas and 0.9
for paved areas . The following table is a summary of the existing condition peak discharges .
Table 1
Existing Condition Peak Discharge Summary
Subwatershed Area 5 year 10 year 25 year 50 year 100 year
A 5.08 22 24 2~ 32 36
B 5.12 28 30 36 40 45
81 2 .53 7 7 9 10 11
c 13.54 53 58 69 77 87
D, F ,G ,H 36 .32 115 129 150 171 193
E 4 .59 15 16 19 21 24
As stated earlier in the report , the objective of this study is to design the proposed mod ifications
to limit flow out of the site to no more than 5 year existing conditions flow as shown in t able 1.
Proposed Detention
In order to limit flow from the site it is necessary to store stormwater that enters the site thereby
reducing the peak outflow.
An initial analysis was made of required storage to determine the necessary detention storage to
reduce flows to the 5 year existing condition . Based on this a grading was developed to achieve
this storage. The inflow for the proposed modifications was developed to determine the new
peak flow. Table 2 below is a summary of the peak inflow with the proposed modifications .
Subwatershed area
A* 5.oB
B 5.12
B1
c 8.70*
DFGH 41 .05
E* L/.70
Table 2
5 yr. 1 O yr. 25 yr. 50 yr. 100 yr.
30 ~I s6 39 '-/Z
31 34 40 45 51
NO CHANGE FROM EXISTING CONDITION
56 60 72 81 91
141 159 184 209 236
Zf.&, z.~ ~ ~ '{'!,
'Tlf-eSE NvM~ees,
~~J\N~~SCD
"FTC.Dl"V\ C0"1STfZ.lAc::T 'IDt-.1
~,~G.S
* Watershed A and E will discharge into the floodplain of tributary B of Bee Creek and are not
included in the detention study in this report .
*The watershed area is proposed to be altered so that an actual area of 6 .06 acres is proposed .
However, this study used an earlier version of 8.70 acres which is conservative.
In order to determine the actual outflow and storage based on the proposed High School grading .
The following information was determined:
1. Elevation-volume information was determined for each watershed based on the site grading
proposed .
2 . An outflow rating curve was developed for each outflow structure.
Using the above data together with the peak inflow a routing was completed through the
detention basins . The details of this analysis are shown in appendix 3. A summary table is
provided below :
Sub wate ohed 5 year
storage outflow
AF cfs
B 0.2 17
B l NO CHANGE
c 0 .2 33
DFGH 2 .94 37
Summary
Table 3
10 year 25 yea r 50 year
storage outflow storage outflow storage outflow
AF cfs AF cfs AF cfs
0 .22 18 0 .3 21 0 .35 23
0 .23 34 0.35 38 0.4 9 39
3.43 40 4 .08 42 4 .98 45
100 year
sto rage outflow
AF cfs
0.42 25
0 .64 4 1
5 .89 48
This study has shown that the proposed changes to the High School site will reduce proposed
peak outflows for the 100 yr . , 50 yr., 25 yr., 10 yr., and 5yr. flows to no more than the 5 year
flows that currently exist by storing flows in proposed detention basins.
/
(
/
\.
\
' v----
COLLEGE STATION HIGH SCHOOL
WATERSHED MAP
FIGURE 1
7-,---/~
)
J
I
) ,,}-
DISCHARGE
DETERMINATIONS
WATERSHED A
Quick TR -55 Ver .5 .46
EY;ecuted: 10:13:23
SIN:
03-1 "3-1 ':f36
CITY OF COLLEGE STATION
DETENTION STORAGE DET ERMINATIONS
BASIN A
* * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * *
Q = adj * C * I * A
Where: Q=c fs, C=Weighted Runoff Coefficient, I =in/hour, A=acres
adj = 'C' adjustment factor for each return frequency
Subarea
Desc r.
F.:un o ff , c, Area
acres
Tc
(min)
Wtd. , c:,
RETURN FREQUENCY = 5 years
'C' adj u stment, k = 1
Ad .j • ' C' = Wt d . ' C' y; 1
========================= ========
Adj. , c, I
in/hr
Tc•t al
a cr es
Peak Q
(c fs)
--------------------------:---------------------------------------------
GF~A S SED
PAVED
0.350
0. '300
3. 1 (l
1. '38
---------------:---------------------------------------------
10.00 0.554 O. 5 E:A 7.700 5.08 22.08
Quick TR -55 Ver.5.46
E~;ecuted: 10: 13: 23
S/N:
03 -1 '3-1 '3'36
CITY OF COLLEGE STATION
DETENTION STORAGE DETERMINATIONS
BASIN A
* * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * *
Q = adj * C * I * A
Wh ere: Q=c fs, C=Weighted Runoff Coefficient, I=in/hour, A=acres
adj = 'C' adjustment factor for each return frequency
Subarea
Descr.
Run off
'c'
Area
acres
Tc
(mi n)
Wtd.
'c'
RETURN FREQUENCY = 10 years
'C' adjustment, k = 1
Adj. 'C' = Wtd.'C ' ~; 1 -------------------------•---------------------------------.--------
Adj.
'c'
I
in/hr
Total
acres
: Peak Q
(cf s)
----------------------------------------: :-----------------------:--------
GRASSED
PAVE D
0.350
0. '300
3.10
1. '38
-----------------------------: :-----------------------:--------
10.00 0.564 : : 0.564 8.300 5.08 : 23 .80
Quick TR-55 Ver.5.46
Executed: 10: 13: 23
S/N:
03-1 ":J-1 '3'36
CITY OF COLLEGE STATIO N
DETENTION STORAGE DETERMINATIONS
BASIN A
* * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * *
Q = adj * C * I * A
Where: Q=cfs, C=Weighted Runoff Coefficient, !=in/hour, A=acres
adj = 'C' adjustment factor for each return frequency
Subarea
Des•:r.
Runoff
'c,
Area
acres
Tc
(min)
Wtd.
'c'
RETURN FREQUENCY = 25 years
~c' adjustment, k = 1
Adj . ' C' = Wt d . ' C' ~; 1 ------------------------------------------------------------------
Adj.
, c'
I
in/hr
Total
a•: res
Peak Q
(1:fs)
----------------------------------------: :-------------------------------
GF.:ASSED
PAVE D
0.350
0. '::JOO
3. 10
1. 98 -----------------------------: :-------------------------------
10.00 0.564 : : 0.564 9.900 5.08 28.38
Quick TR-55 Ver.5.46
EY;ecuted: 10:13:23
S/N:
03 -1 '3 -1 '3'36
CITY OF COLLEGE STATION
DETENTION STORAGE DETERMINATIONS
BASIN A
* * * * * * SUM MARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * *
Q = adj * C * I * A
Where: Q=cfs, C=Weighted Runoff Coefficient, !=in/hour, A=acres
adj = 'C' adjustment factor for each return frequency
Subarea
Descr.
F.:un o ff , c, Tc
(min)
Wtd.
'C'
RETURN FREQUENCY = 50 years
'C' adjustment, k = 1
Ad ,j • ' C' = Wt d • ' C ' ~,; 1 -------------------------•---------------------------------.--------
Adj.
'c,
I
in/hr
Total
a•: res
: Peak Q
(c fs)
----------------------------------------: :-----------------------:--------
GRASSED
PAVED
0.350
o. '300
3. 10
1. '3 8
-----------------------------: :-----------------------:--------
10.00 0.564 : : 0.564 11.100 5.08 : 31. 82
{ck TR-55 Ver.5.46 S/N:
Executed: 10:13:23 03-19-1996
CITY OF COLLEGE STATION
DETENTION STORAGE DETERMINATIONS
BASIN A
* * * * * * S UMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * *
Q = adj * C * I * A
Wh ere : Q=cfs , C=Weighted Runoff Coefficient, !=in/h o ur, A=acres
adj = 'C' adjustment factor for each return frequency
Subarea
Descr.
Runoff
' c:'
Area
acres
Tc
(min)
Wtd. , c,
RETURN FREQUENCY = 100 years
'C' adjustment, k = 1
Adj. 'C' = Wtd. 'C' y; 1 ------------------------------------------------------------------
Adj.
'c,
I
in/hr
Total
acres
Peak Q
(c fs)
--------------------------:---------------------------------------------
GPASSED
PAVED
0.350
o. '300
3. 10
1. '38
---------------:---------------------------------------------
1 o. 00 o. 564 0.564 12.500 5.08 35.84
DISCHARGE DETERMINATION
WATERSHED B
Quick TR -55 Ve r.5.45 S/N:
Exec uted: 10:18 :29 03 -1 9-1995
C ITY OF COLLEGE STATION
DISCHARGE DETERMINATION
BA S IN B EXISTING CO NDITION S
* * * * * * S UMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * *
Q = adj * C * I * A
Wh ere : Q=cfs , C=Weighted Runoff Coefficient, I =in/hour, A=acres
adj = 'C ' a djust ment factor for ea c h return frequency
Subarea
De scr.
Run e• ff
'c'
Area
acres
Tc
(min)
Wtd.
'c'
RETURN FREQUENCY = 5 years
'C' adjustment, k = 1
Adj. 'C' = Wtd.'C ' ~; 1 -------------------------•---------------------------------,--------
Adj.
'c'
I
in/hr
Tc•t al
ar:res
: Peak Q
(cf s)
--------------------------:--------------: :-----------------------:--------
GRASSED
PAVE D
0.350
0. '300
1. 80
, .... ~.-, .;:,, • ...:;,L
---------------:--------------: :-----------------------:--------
10 .00 0 .707 : : 0.707 7.700 5.12 : 27.85
Qu i ck TR -55 Ve r .5 .46 S/N:
Executed: 10:18:29 03 -19 -1996
CITY OF COLLEGE STATION
DISCHARGE DETERMINATION
BASIN B EXISTING CONDITIONS
* * * * * * S UMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * *
Q = adj * C * I * A
Wh e r e : Q=cf s , C=Weighted Runoff Coefficient, !=in/hour, A=acres
ad j = 'C' a djustment factor for each return frequency
Sub area
Descr.
Runoff , c, Are a
acres
Tc
(min)
Wtd.
'C'
RETURN FREQUENCY = 10 years
'C' adjustment, k = 1
Adj . ' C' = Wt d • ' C' ~; 1 ------------------------------------------------------------------
Adj. , c, I
in/hr
Total
acres
Peak Q
(c fs)
--------------------------:---------------------------------------------
GRASSED
PAVED
o. 350
o. ·::;oo
1. 80
---------------:-----------------------------~----------------
10.00 0.707 0.707 8. 300 5. 12 30.03
Qu ic k TR -55 Ve r.5.4 6 S/N:
Ex ecuted: 10:18:2"3 03 -1"3 -1"3"36
CITY OF COLLEGE STATION
DISCHARGE DETERMINATION
BASIN B EXISTING CONDITIONS
* * * * * * S UMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * *
Q = adj * C * I * A
Wh ere : Q=c f s , C=Weighted Runoff Coefficient, !=in/hour, A=acres
ad j = 'C' a dju s tment fa c tor for each return frequency
Subare a
De sc r .
F.:unoff
'c '
Area
acre s
Tc
(min)
Wtd.
, c'
RETURN FREQUENCY = 25
'C' adjustment, k = 1
Adj. 'C' = Wtd. 'C' ~; 1
=========================
Adj.
, c'
I
in/hr
Tc•tal
acres
years
----------------
Peak Q
(c fs)
--------------------------:--------------: -------------------------------
GPASSED
PAVED
0.350
o. '300
1. 80
---------------:--------------: -------------------------------
10.00 0.707 : 0.707 "3. '300 5.12 35.82
Quick TR-55 Ver .5.46 SIN:
Executed: 10:18:29 03 -19-1996
CITY OF COLLEGE STATION
DISCHARGE DETERMINATION
BASIN B EXISTING CONDITIONS
* * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * *
Q = adj * C * I * A
Where: Q=cfs, C=Weighted Runoff Coefficient, !=in/hour, A=acres
adj = 'C' adjustment factor for each return frequency
Subarea
Descr.
Rune• ff , c, Area
acres
Tc
(min)
Wtd.
, c'
RETURN FREQUENCY = 50 years
~c' adjustment, k = 1
Adj . ' C' = Wt d. ' C' :-; 1 ------------------------------------------------------------------
Adj.
'C'
I
in/hr
Total
acres
Peak Q
(•: fs)
--------------------------:--------------: :-------------------------------
GF.:ASSED
PAVED
0.350
0. '300
1. 80
r"'t ,.,,-, ..;:, . ..:;,.,;;:
---------------:--------------: :-------------------------------
10.00 0.707 :: 0.707 11.100 5. 12 40.16
Quick TR-55 Ver.5.46 S/N:
Executed: 10:18:29 03-19-1996
C ITY OF COLLEGE STATION
DISCHARGE DETERMINATION
BASIN B EXISTING CONDITIONS
* * * * * * S UMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * *
Q = adj * C * I * A
Where: Q=cfs, C=Weighted Runoff Coefficient, !=in/hour, A=acres
adj = 'C' adjustment factor for each return frequency
Subar ea
Desc 1·.
Runoff , c, Area
acres
Tc
(min)
Wtd. , c:,
RETURN FREQUENCY = 100
'C' adjustment, k = 1
Adj . ' C ' = Wt d • ' C' ~; 1
=========================
Adj. , c, I
in/hr
years
----·------------
Peak Q
(cf s)
----------------------------------------:-------------------------------
GRASSED
PAVED
o . 350
o. '300
1. 80 ,.., ,_,,-,
~.W.L
-----------------------------:-----------------------,--------
10.00 0.707 : 0.707 12.500 5.12 : 45.22
DISCHARGE DETERMINATION
WATERSHED 81
Quick TR -55 Ver.5.45 S/N:
Exec uted: 10:25:58 03 -19-1995
CITY OF COLLEGE STATION
DISCHARGE DETERMINATIONS
BASIN Bl EXISTING CONDITIONS
* * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * *
Q = adj * C * I * A
Whe re: Q=cfs , C=Weighted Runoff Coefficient, !=in/hour, A=acres
adj = 'C' adjustment factor for each return frequency
RETURN FREQUENCY = 5 years
'C' adjustment, k = 1
Ad j . ' C' = Wt d . ' C' y; 1
========================= ========
Su bar ea
D~?sc r.
Run off
'C'
Area
acres
Tc
(min)
Wtd. , c, Adj. , c, I
in/hr
Tcot al
acres
Peak Q
(cf s)
----------------------------------------: :-------------------------------
GRASSED 0.350 .-. r:'r-i .:. • .._J ..:J -----------------------------: :-------------------------------
10.00 0.350 : : 0.350 7.700 5.82
Quick TR -55 Ver.5.46
E~1;ec ut ed: 10: 25: 58
S/N:
03-1'3-··1 '3'36
C ITY OF COLLEGE STATION
DISCHARGE DETERMINATIONS
BASIN 81 EXISTING CONDITIONS
* * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * *
Q = adj * C * I * A
Where: Q=cf s , C=Weighted Runoff Coefficient, I=in/hour, A=acres
adj = 'C' adjustment factor for each return frequency
Subarea
Descr.
Runoff
'C'
Area
acres
Tc
(min)
Wtd. , c,
RETURN FREQUENCY = 10 years
'C' adjustment, k = 1
Adj . ' C' = Wt d . ' C' :t: 1 -------------------------•---------------------------------·--------
Adj. , c, I
in/hr
Total
acres
: Peak Q
(c fs)
--------------------------:--------------:-----------------------:--------
GF.:ASSED 0.350 .-. C"r"l ..::.. ......... ~
---------------:--------------:-----------------------:--------
10.00 0.350 : 0.350 8.300 .-, C"""'I I ...::.. • w,,:, 1 7.35
Qu i c k TR-55 Ve r.5 .46
Exec ut e d : 10:25 :58
S/N:
0 3-1 '3·--1 '3 '3 6
C ITY OF COLLEGE STATION
DISCHARGE DETERMINATION S
BASIN Bl EXI ST ING CONDITIONS
* * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARG E S * * * * * *
Q = adj * C * I * A
Whe re : Q=c fs , C=We i ght e d Runoff Co efficient, I=in/hour, A=acres
adj = 'C' adjustment factor for each return frequency
Subarea
Des•:: r.
Runoff , c, Are a
a cres
Tc
(min)
Wtd.
'C'
RETURN FREQUENCY = 25 years
'C' a djustment, k = 1
Adj. 'C' = Wtd. 'C' ~..: 1 -------------------------•---------------------------------·--------
Adj. , c, I
in/hr
: Peak Q
(c fs)
----------------------------------------: :-----------------------:--------
GRASSED 0.3 50 2.53 -----------------------------: :-----------------------:--------
10.00 0.350 : : 0.350 "9. '300 .-, c:"'I""'\ ' .:, • ~W I 8.77
Quick TR -55 Ver.5.46
Executed: 10:25:58
S/N:
03 -· 1 '3 -1 '3 '36
CITY OF COLLEGE STATION
DISCHARGE DETERMINATIONS
BASIN 81 EXISTING CONDITIONS
* * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * *
Q = adj * C * I * A
Where: Q=cf s , C=Weighted Runoff Coefficient, !=in/hour, A=acres
adj = 'C' adjustment factor for each return frequency
Subarea
Descr.
GF.:ASSED
Runc•f f
'C'
0.350
Area
acres
.-, C"'I ..::. . ,_,~
Tc
(min)
Wtd. , c:,
RETURN FREQUENCY = 50 years
'C' adjustment, k = 1
Adj . ' C' = Wt d • ' C' :-; 1 ------------------------------------------------------------------
Adj. , c, I
in/hr
Peak Q
(c fs)
--------------- --------------:-------------------------------
1 o. (l(l (l. 350 : 0. 350 11 . 100 2.53 9.83
Quick TR-55 Ver.5.46 S/N:
Executed: 10:25:58 03 -19-1996
CITY OF COLLEGE STATION
DISCHARGE DETERMINATIONS
BASIN Bl EXISTING CONDITIONS
* * * * * * S UMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * *
Q = adj * C * I * A
Where: Q=c fs, C=Weighted Runoff Coefficient, !=in/hour, A=acres
adj = 'C' adjustment fa ctor for each return frequency
Sub area
De scr.
Runoff
, c '
Are a
acres
Tc
(min)
~~t d. , c:,
RETURN FREQUENCY = 100 years
'C' adjustment, k = 1
Adj . ' C' = Wt d . ' C' ~,; 1 ------------------------------------------------------------------
Adj.
, c'
I
in/hr
Peak Q
(c fs)
--------------------------:--------------: :-------------------------------
GF.:ASSED 0.3 50 2.53
---------------:--------------: :-------------------------------
10.00 0.350 : : 0 .350 12.500 .-. t:',.., ..:: • ,_J,,:, 11. 07
DISCHARGE DETERMINATION
WATERSHED C
EXISTING
Qu ick TR -5 5 Ver .5.46
Exec uted: 1 0 :29 :59
S/N:
03 -1 ·-:;-1 ·:r::J6
CITY OF COLLEGE STATION
DISCHARGE DETERMINATIONS
BASIN C EXISTING CONDITIONS
* * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * *
Q = adj * C * I * A
Where: Q=c fs, C=Weighted Runoff Coefficient, !=in/hour, A=acres
a dj = 'C' a dju s tment factor fo r each return frequency
Su bar ea
Desc r.
F.:unoff
'c'
Are a
a c res
Tc
(min)
~~t d. , c,
RETURN FREQUENCY = 5 years
'C' adjustment, k = 1
Adj • ' C' = Wt d . ' C' ~,; 1 -------------------------•---------------------------------·--------
Adj.
'c,
I
in/hr
Total
acres
: Peak Q
(cf s)
--------------------------:--------------: :-----------------------:--------
GRASSED
PAVED
0.350
o. ·::ioo
·::i. 54
4.00
---------------:--------------: :-----------------------:--------
10.00 0.512 : : 0.512 7.700 13.54 : 53.43
Quick TR -55 Ver.5.46
Executed: 10:2'3:59
S/N:
03 -1 '3 -1 '3'36
CITY OF COLLEGE STATION
DISCHARGE DETERMINATIONS
BASIN C EXISTING CONDITIONS
* * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * *
Q = adj * C * I * A
Where: Q=cfs, C=Weighted Runoff Coefficient, !=in/hour, A=acres
adj = 'C' adj u s tment factor f or each return frequency
Subarea
D~=sc r .
Runoff , c, Area
acres
Tc
(min)
L-Jt d •
, c'
RETURN FREQUENCY = 10 years
~c' adjustment, k = 1
Adj . ' C' = Wt d • ' C' :.-: 1 -------------------------•---------------------------------.--------
Adj. , c:, I
in/hr
Tc•t al
acres
: Peak Q
(c fs)
----------------------------------------: :-----------------------:--------
13RASSED
PAVED
0.350
0.900
'3. 54
4.00
-----------------------------:-----------------------:--------
10. 00 0. 512 : : 0. 512 8.300 13.54 : 57.5'3
Quick TR -55 Ver.5.46 SI N:
Execu ted : 10:29:59 03-19-1 996
C ITY OF COLLEGE STATION
DISCHARG E DETERMINATIONS
BASIN C EXISTING CONDITIONS
* * * * * * SUMMARY OF RATIONAL METH OD PEAK DI SC HARGES * * * * * *
Q = adj * C * I * A
Wh ere: Q=cfs, C=Weighted Runoff Coefficient, !=in/hour, A=acres
a d j = 'C' adjustme nt fa ctor f or eac h return frequency
Subarea
D<::.>scr.
F.:un c• f f
'c'
Area
acres
Tc
(min )
Wt d .
'c '
RETURN FREQUENCY = 25 years
'C' adjustment, k = 1
Adj • ' C' = Wt d • ' C' ~; 1 -------------------------·---------------------------------·--------
Adj. , c, I
in/hr
Tcot al
acres
: Peak Q
(,: fs)
--------------------------:--------------:-----------------------:--------
GF.:ASSED
PAVE D
0.350
o. '30 0
'3. 54
4.00
---------------:--------------:-----------------------:--------
10.00 0.512 : : 0.51 2 '3. '300 13.54 : 68.70
Quick TR -55 Ver .5 .46
E :t:ecuted: 10: 2 '3: 5'3
S/N:
03 -1 '3 --1 '3'36
CITY OF COLLEGE STATION
DISCHARGE DETERMINATIONS
BASIN C EXISTING CONDITION S
* * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * *
Q = adj * C * I * A
Wher e : Q=cf s , C=Weighted Runoff Coefficient, !=in/hour, A=acres
ad j = 'C' a dju s tment factor for each return frequency
S ubarea
Descr.
F.:un o ff
'c'
Area
acres
Tc
(min)
Wtd.
'C'
RETURN FREQUENCY = 50 years
'C' adjustment, k = 1
Adj. 'C' = Wt d. 'C' y; 1 ------------------------------------------------------------------
Adj.
'c'
I
in/hr
Total
acres
Peak Q
(1: fs)
--------------------------:--------------: :-------------------------------
GPASSED
PAVED
0.350
o. '300
'3. 54
4.00
---------------:--------------: :-------------------------------
10.00 0.512 : : 0.512 11.100 13.54 : 77.02
Quick TR-55 Ver.5.45 S/N:
E xec uted: 10:29:59 03 -19-1996
CITY OF COLLEGE STATION
DISCHARGE DETERMINATIONS
BASIN C EXISTING CONDITIONS
* * * * * * SUM MARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * *
Q = adj * C * I * A
Wh ere: Q=c fs, C=Weig hted Runoff Coefficient, !=in/hour, A=acres
adj = 'C' adjustment factor for each return frequency
Su bar ea
Descr.
Punoff , c, Area
acres
Tc
(min)
Wtd.
'C'
RETURN FREQUENCY = 100 yea rs
~c' adjustment, k = 1
Adj . ' C' = Wt d. ' C' :-; 1
========================= ========
Adj.
'c,
I
in/hr
T•:•t al
acres
Peak Q
(cf s)
--------------------------:--------------: -------------------------------
GRASSED
PAVED
0.350
0. '300
'3. 54
4.00
---------------:--------------: -----------------------:--------
10.00 0.512 : 0.512 12.500 13.54 : 85.74
DISCHARGE DETERMINATION
WATERSHED D,F ,G ,H
Quick TP -55 Ver .5.46 S/N :
E x ecute d: 11:50:14 04-09 -1996
CITY OF COLLEGE STA TION
DISCHARGE DETERMINATIONS
BASIN D,F,G ,H EX I STING CO NDITIONS
* * * * * * SUMMARY OF RATIONAL METHOD PEAK DISC HAR GES * * * * * *
Q = a dj * C * I * A
Wh ere: Q=c f s , C=Weight ed Run of f Coefficient, I=in /hou r , A=acres
adj = 'C ' a djustment f a ctor f or each return frequency
Subarea
De~:;c r.
Run off
'C '
f.)rea
ao: res
T···
(min )
Wt; d.
'c'
RETURN FREQUENCY = 5 years
1 C 1 adjust ment, k = 1
Ac! j . , c I ::: Wt d. I c I >; 1
-------------------------•---------------------------------.--------
Adj .
'c'
I
in/hr
Total : Pea k Q
C:o: fs)
--------------------------:--------------:-----------------------:--------
GRASSE:D D
o. 3~5 <) 1 2. l 7 ..
F'r~VED D
0 . ·::;oo o. 55
F:ES IDEr.IT F
0. 500 1 . 5··· . ..::.
PESIDENT G
C) .. 500 14. , .. ,r..:·
,:j .._J
r-.:·i:~s r DEr,n H
0 .. E,r)(l ·7 5~3
---------------:-----------·---: :-----------------------:--------
11.00 0.522 : : 0.522 s. o·::;o 115. 37
Quick TR-55 Ver.5.46 S/N: Executed: 11:50:14 04-09-1996 CITY OF COLLEGE STATION DISCHARGE DETERMINATIONS BASIN D,F,G,H EXISTING CONDITIONS * * * * * * SUMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * * Q = adj * C * I * A Where: Q:cfs, C=Weighted Runoff Coefficient, !=in/hour, A=acres adj = 'C' adjustment factor for each return frequency Sub;:H·ea DE!SC.,,.. F.:uno ff 'C' P1r·ea a.ctwes Tc (min:> Wtd. 'c' RETURN F"REQUENCV = 10 years ~c' adjustment, k = 1 Adj . ' C' ::-" ~,Jt cl • ' C' ~,; 1 -------------------------•---------------------------------.--------(-4d .j • 'c' I in/hr Total acyes : Peak Q (cf s :> --------------------------:--------------: :-----------------------:--------GF.:AS~3ED D (>" 3::i(> l:?. 1 7 Pr-wr:::D D 0. '300 o. f,5 F::ES I DENT 1:.-0.600 l. S:2 F.:ES I DENT 13 o.soo :L4. 35 RESIDENT H o. 500 '7 II s:.:~ --------·-------:--------------: -------------------------------17.00 0.522 : : 0.522 s. s::::o 36.32 : 12'3. 3'3
Qu. i c k T F::····:'-3~3 ie1' • 5 . 4G
E:r;ecute d: 11::50:14
S/N:
r)4 -.. o ·:j -· 1 ':'.t =.35
CITY OF COLLEGE STAT ION
DI SC HARGE DETERMINAT I ONS
BASIN D,F,G,H E XI STING CONDITIONS
~· * ·!!-* * ·*· S U l'll'I ARY CW F:(H I rn~{.)L METHLlD F'Ef.)I< DI SC H APGES -M· -*· * * -!!· -M·
Q = adj * C * I * A
Where: Q=cf s , c~Weighted Runoff Coeffic i e nt, !=in /hour, A=ac re s
a dj -'C' adjustme n t factor f or eac h ret u r n f requency
Subar e ci.
Df?<sc r •
P un c•ff
'C '
(~rea Tc
(min)
Wt d.
'C '
RETURN FRE QU E NC Y = 25 y ea rs
'C' a djustment, k = 1
Ad j • ' C ' = Wt d • ' C' ~,; 1
-------------------------•---------------------------------1--------
Ad j.
'c '
I
i n/h r
T ota l
acres
: F'eak Q
(cf s)
--------------------------:--------------: :-----------------------:--------
G l?A ~3Sf:::D D
()II 35(> 1L 1 7
F'(.iVf~:D D
0. -:;H)O (J. GS
1:-.::ES I DEl\IT F"
o. EOU 1 " E2
PES I DENT 1-· .. 'l
o. 600 14 . 1'""\C:' ..::,...;
PESIDENT H
0. 500 '7 r::-r-,
' . ..J ...:•
---------------:--------------: :-----------------------:--------
17.00 0.522 : : 0.522 7 . ·:MO 3(;. 32 : 1.50. 4 :2
Quick TR -55 VeY.5.46
E~,;ec utecl: 11:'.SO: 1 ··l
S /N:
04-0·=:1·--l '395
CITY OF COLLEGE S TATION
DI SC I l(..~F:GE DE TEF.'.M I NAT I DNS
BASIN D,F,G,H EXISTING CO NDITIO NS
* * * ~ * * S UM MAPY OF RATIONAL MET HOD PE AK D I SC HA RGES * * * * * *
Q = adj * C * I * A
Wh ere : D=cfs , C=Wei ght e d Runoff Coefficien t, l =in /h our, A=acres
adj = 'C' adjustment factor for each ret u r n freque n cy
Subay·ea
D£·?SC r.
Puni:::• ff
, c '
T ·-
(min)
l,,Jt d. , c,
RE TU RN F REQUENCY = 5 0 yea r s
~e r a d j u st me n t , k = 1
Ad j . ' C ' = V.Jt cl. ' C' :·1; 1 -------------------------•---------------------------------·--------
{:)d.j. , c , I
i n/h r
T ota l
acres
: Peak Q
(c f s )
----------------------------------------:-----------------------:--------
GPAS~3 ED D
o. 35(> 12 . :L 7
F'(.WE D D
o. ·:ioo 0.55
PESIDENT F-
o. 500 1 " 52
PES IDE-:NT 13
0. 500 :L4. r"lt::-..:;.,~
PESIDENT H
0. GOO 7.53
---------------:--------------: :-----------------------:--------
17.00 0.522 : : 0 .522 '3 . 0 00 l.70.50
Quick TR -55 Ver.5.46 S/N:
Executed: 11:50:14 04 -09-1995
C IT Y OF COLLEGE STA TION
DISCHARGE DETERMINA"fIONS
BASIN D~F,G,H EXIS TI NG CONDIT .IONS
* * * * * * SU MMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * *
Q = adj ~ C * I * A
Where: Ll=cfsr C=Weig h ted Runoff Coefficient, I=in/hour, A=acr es
Su b area
De 0.:;cr·.
.-;.:1 dj ··· 'C' c:1d.justment factoi-for e ,::1ch return fr equenc y
F:unoff
' c'
Tc
(min )
v-Jtd .
'c'
RETURN FREQ UENCY = 100 y ear s
'C' adj u c:;t men t, I:: :::" 1
Ac:J j. 'C ' = l.Jt d.'C' :.-; 1
-------------------------•---------------------------------.--------
'C'
I
in/tw
Total
acres
: Pea k Q
(cf s)
--------------------------:--------------·: :-----------------------:--------
ClR?~SSED D
0. 3::.i<) 12. 1 -7 • I
F'AVED D
0. ·=Joo 0. cc::· ;:,,J
l?ESIDENT F
c). r-: .. oo :l . f;.2
RESIDENT G
0. GOO 14. r '\t::-
~'-'
F:ES IDENT H
o. 600 7
I"
i=r\
,J ..:;,
---------------:--------------: :-----------------------:--------
:I. 7. 00 0. 522 : : 0. 52:2 1 0. 1 ·::10 35 .. 3 :2 : 1 '33. 04
--------
DISCHARGE DETERMINATION
WATERSHED E
Qui ck TR -55 Ver .5.46 S/N:
Executed: 10:38:58 03 -19 -1996
C ITY OF COLLEGE STATIO N
DISCHARGE DETER MINATIONS
BASI N E EXISTING CON DI TIONS
* * * * * * S UMMARY OF RAT IO NAL METHOD PEAK DISCHARGES * * * * * *
Q = adj * C * I * A
Wh ere: Q=cfs , C=Weighted Runoff Coe fficient, I=in/hou r , A=acre s
adj = 'C' adj u s tment facto r f or each return frequency
Subar ea
Desc r.
F.:un o ff , c , Area
acres
Tc
(min )
Wtd. , c ,
RETURN FREQUENCY = 5 years
'C' a djustment, k = 1
Ad j . 'C' = Wtd.'C' ~,; 1 -------------------------•---------------------------------.--------
Adj. , c, I
in/h r
Tc•t al
a•: res
: Peak Q
(cf s)
--------------------------:--------------: -----------------------:--------
GF.:ASSED
PAVED
0.350
(I. '300
4.00
o. 5•3
---------------:--------------: -----------------------:--------
10.00 0.421 0.421 7.700 4. 5'3 : 14.87
Qui ck TR -55 Ver.5.4 6 S/N:
Executed: 10:38:58 03 -19 -1996
CITY OF COLLEGE STATION
DISCHARGE DETERMINATIONS
BASIN E EXISTING CONDITIONS
* * * * * * S UMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * *
Q = adj * C * I * A
Wh ere: Q=cf s , C=Weighted Runoff Coefficient, I=in/hour, A=acres
ad j = 'C' adjust ment f ac tor for each return frequency
Subarea
De s cr.
GF.'.ASSED
PAVED
Runoff , c,
o. 350
0.900
Area
acre s
4. 00
0. 5'3
Tc
(min)
Wtd.
, c'
RETURN FREQUENCY = 10 years
'C' adjustment, k = 1
Adj . ' C' = Wt d . ' C' ~; 1 -------------------------·---------------------------------,--------
Adj.
'c,
I
in/hr
Tot al
acres
: Peak Q
( ·= f s)
-----------------------------:-------------------------------
10.00 0.421 : 0.421 8.300 4. 5'3 15 .03
Quick TR -55 Ver.5.46
E x ecuted: 10:38:58
S/N:
03 -1 '3 -1 '3'35
CITY OF COLLEGE STATION
DISCHARGE DETERMINA TIONS
BASIN E EXISTING CONDITIONS
* * * * * * SUM MARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * *
Q = adj * C * I * A
Where: Q=cfs, C=We ighted Runoff Coefficient, I=in/hour, A=acres
adj = 'C' adjust ment factor for ea c h return frequency
Subarea
Descr.
Runoff
'c'
Area
acres
Tc
(min)
Wtd.
'c'
RETURN FREQUENCY = 25
'C' adjustment, k = 1
Adj . ' C' = Wt d • ' C ' :-; 1
=========================
Adj.
'c'
I
in/hr
T o tal
acres
years
-----------------
Peak Q
(cf s)
----------------------------------------: :-------------------------------
GF.:ASSED
PAVED
0.350
0. '300
4.00
o. 5'3
-----------------------------: :-------------------------------
10. 00 0. 421 : 0.421 '3 . '300 4.5'3 1'3 . 12
Qui c k TR -5 5 Ver.5.4 6
E x ecuted: 10:38:58
SIN:
03 --1 '3--1 '3 '3 f:,
C ITY OF COLL E GE S TATION
DISCHARGE DETERMINATIONS
BA S IN E EXISTING CONDITIONS
* * * * * * SUMMARY OF RATIONAL ME THOD PEAK DISCHARGES * * * * * *
Q = a dj * C * I * A
Wh ere : Q=c fs, C=Weighted Run o ff Coefficient, !=in/hour, A=acres
adj = 'C' ad j u s tm e nt fa c tor fo r e a c h return frequency
Subarea
De scr .
Runoff
'c,
Area
ac r es
T c
(min)
Wtd.
'c'
RETURN FREQUENCY = 50 years
~c' a djustment, k = 1
Ad j . 'C' = Wtd.'C' ~,; 1 -------------------------•---------------------------------.--------
Ad j .
, c'
I
in/hr
Total
acres
: Peak Q
(•: fs)
--------------------------:--------------: -----------------------:--------
GF.:ASSED
PAVED
0.35 0
0. '300
4.00
0. 5'3
---------------:--------------: -----------------------:--------
10.00 0.4 2 1 0.42 1 11. 100 4. 5'3 : 21. 43
-----___________ _..
Quick TR -55 Ver.5.46
Executed: 10:38:58
S/N:
03 -1 "3 -1 "3'36
CITY OF COLLEGE STATION
DISCHARGE DETERMINATIONS
BASIN E EXISTING CON DITION S
* * * * * * S UMMA RY OF RATIONAL MET HOD PEAK DISCHARGES * * * * * *
Q = adj * C * I * A
Where: Q=cfs , C=Weighted Ru n off Coefficient, !=in/hour, A=acres
adj = 'C' adjustment factor for ea c h return frequency
Su b area
De scr.
Runoff
'c'
Ar· ea
acres
Tc
(min )
Wtd.
'c'
RETURN FREQUEN CY = 100 years
~c' adjust ment, k = 1
Ad j . ' C' = Wt d. ' C' :1: 1
========================= ========
Adj.
, c'
I
in/hr
Total
acres
Peak Q
(cf s)
--------------------------:--------------: -------------------------------
GF.:ASSED
PAVE D
0.350
o. '300
4.00
o. 5•3
---------------:--------------: -------------------------------
10.00 0.421 0.421 1 2.500 4. 5•3 24.14
SUMMARY
FREG
100 YR
50 YR
25 YR
10 YR
5 YR
STORAGE
DETERMINATIONS
WATERSHED B
VOL. STORAGE
0.347
0.250
0.172
0.078
0.045
Quick TR -55 Ver.5.46
E >;ecuted: 11: 02: 40
!":l./N:
03 -· 1'3 -·1 '3'36
F
L
0
[,J
c
s
MODIFIED RAT I ONAL METHOD
----Graphica l Su mmar y f ol'" Ma x imum Re qui red S t orage ----
Fi rst peak outflow point ass um ed to occur a t T c hyd rogY"ap h 'recess ion leg.
CITY OF COL LEG E STA TION
STO RAGE DET ER MINATIO NS
MA XIMUM OUT NO MORE THAN 5 YEAR
********************************************************************** * RETURN FREQUE NCY: 1 00 y r Allowab l e Outflow: 28 .00 cf s *
* 'C ' Adjustment: 1.000 Required Storage: 0.347 ac-ft *
*--------------------------------------------------------------------* * Peak Inflow: 45.37 cfs In flo w .HYD stoY"e d: CSP100B .HYD *
**********************************************************************
Tel = 14 minut!"2s
!-------AppY"ox. Du ration fol'" Ma x . Stor age ------/
I
• I •
T c=
I --
Q ·--
10.00 minut es
12.500 in /h r
50.72 cfs
Pequ i ire d St Ol'" age
O. 347 ac--·ft
x x x x x x x :x x x x x x x x x x x
Pet U Y" n Fir eq: 100 y·r
C ad.j. factoir: 1. 00
At-ea C: ac ) :
Weight e d C:
f:"~dj ust e d C:
5 .. 1 2
o . 7 ·3
0. 7'3
Td=
I --
Q --
14 minutes
11.180 in/hr
45.37 cfs
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Q= 28.00 cfs
I
I • (Al 1 ow . Out f 1 C•W)
l\JOT TO SCA LE
' .. ====--===:."":::.-:::::::=:::
'-----------------------:-----------------------------:------------
14.48 minutes 17 .83 minute s
Quick TR -55 Ver .5.46
E x ecuted: 11:02 :40
S/f\l:
03 --· 1'3 -···1 '3'3G
F
L
0
w
f
s
MODIFIED RAT ION AL ME THOD
----Gra phical Summary for Ma x imum Required Storage ----
First peak outflow p o int ass um ed to occur at T c hydrog ra ph recession leg.
CITY OF COLLEGE STAT ION
S TO RAGE DETERMINATIONS
MAXIMUM OUT NO MORE THAN 5 YEAR
********************************************************************** * RETURN FREQUENCY: 50 yr All owab l e Outf low: 28 .00 cfs *
* 'C ' Adjustment: 1 .000 Require d Storage: 0 .250 ac -ft *
*--------------------------------------------------------------------*
* Peak Infl ow: 41.33 cfs Infl o w .HYD s tor e d: CSP50B .HYD *
**********************************************************************
Td == 13 minu tes
!-------Approx. Duration for Max . Storage ------/
,_.
"'
I
• 1 •
T,.-:::
I ==
Q --
10.00
11. 100
45.04
mi nutes
in/hr
cfs
F:equi1"ed Stor age
0 .25 0 ac-ft
A X X X X X x :x X X X X X X X X X X
F.:et u1 " ri Fi" e q: 50 yr
C adj. fac to r : 1. 00
A r-ea C: ac ) :
Weighted C:
Ad.just e d C:
5. 12
o. 7'3
o. 7 '3
Td =
I ==
Q ==
13 minute s
10.200 in/hr
41. 3'3 cf s
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Q ::: 28.00 c f s
(Al 1 ow. Out f 1 c•w) I
I •
NOT TD SCALE
================
! C1 ~'~
'-----------------------:-----------------------------:------------
13.78 mi nute s 1 6.24 min ut es
Quick TR -55 Ver.5.46
E~1;ec ut ed: 11:02:40
S/N:
03--· 1'3-·1 '395
F
L
0
w
f
s
MODIFIED PAT I ONA L METHOD
----Graph i ca l Summary for Max imum Required Storage ----
First peak outflow point assu me d to occur at T c hydrograph recession leg.
CITY OF COLLEGE STAT ION
STOR AGE DETERMINATIONS
MAXIMUM OUT NO MORE THAN 5 YEAR
**********************************************************************
* RETURN FREQUENCY : 25 yr All owab l e Outflow: 28 .00 c f s *
* 'C' Adjustment: 1.000 Requir e d Storage: 0 .1 72 ac-ft *
*--------------------------------------------------------------------*
* P eak Inflow: 37 .90 c f s Inflow .HYD stored: CSP25B .HYD *
**********************************************************************
Td = 12 minutes Pet urn Freq: 25 yr
!-------Appro x . Dur atio n for Ma x . Storage ------/ C adj.fac tor: 1.00
I
I•
Tc :::
I --
Q =
10.00 minute s
'3. '300 in I hr
40.17 cf s
F.:equ i Y-ed S t •:•rage
AY-ea ( ac ):
Weighted C:
Adjusted C:
0.172 ac -ft Td =
5. 12
0. 7•3
0. 7•3
I -
x x x x x x x :x x x x x x x x x x x Q -
12 minute s
'3 . 340 in/hr
37 . '30 c fs
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Q·--28.00 cfs
I
I • (A l low. Out flcrw)
NOT TO SCALE
:-.:::::::::::=:=:::::::::::::::::::::::::
'-----------------------:-----------------------------:------------
13.03 minutes 1 4 .G1 minutes
Quick TR -55 Ver.5.46
E ~,;ecuted: 11:02:40
s n ,1:
03--1 '3 -1 '3'36
MODIFIED RATIONAL METHOD
----Graphical Summ ar y foY Maximum Required Storage
C ITY OF COLLEGE STATION
STORAGE DETERMINATIONS
MAXIMUM OUT NO MORE THAN 5 YEAR
**********************************************************************
* * * RE TUR N FREQUENCY: :LO yr
* 'C' Adju s tment: 1.000
·l!-
Allowable Outflow:
Required Storage:
* STORM DURATION = Tc f or Max.Stor age
28.00 cfs
0. 078 ac -.. ft
* ____________________ ,,,, ________________________________________________ *
* Peak Inflow: 33.68 cfs Inflow .HYD stored: CSPlOB .HYD *
**********************************************************************
F
L
0
w
f
s
I
I .
C1
Tc=== 10.00 minute s
I ..... 8.300 in/hr Air ea (ac)
Q --33.68 cfs Wei ghted
Ad.justed
R e quired St C•r aqe
-----------0.0 78 ac-ft
I
I •
Cr I
I•
Q ::: 28.00 cfs
C: A 11 ow. Out f 1 ow)
NOT TO SCALE
:.."::::::::::::::===========
-----------------------:------------------------
11.6'3 minut es
:
C:
c::
5 . 1 2
o. 7'3
o. 7'3
Quick TR -55 Ver .5.46 S /N:
E x ec ut ed : 11:02:40 03 -19 -1 99 6
MODIFIED RA TION AL METHOD
----Gra p h ica l Su mm ary f or Maxim um Required Sto rage
C IT Y OF COLLEGE STA TION
S TORAGE DETERMINATION S
MA XIMUM OUT NO MORE THAN 5 YEAR
**********************************************************************
* * RETURN FRE QUE NCY: 5 yr
* 'C' Adju s tm en t: 1.000
*
All owab l e Outflow:
Requir ed Storage:
28 .00 cfs
0 .045 ac-ft
* * *
* * STORM DURATION = Tc f or Ma x .Stora ge *
*--------------------------------------------------------------------* * Pe a k Infl ow: 31 .25 cfs Infl ow .HYD stored: CSP5B .HYD *
**********************************************************************
F
L
0
w
c
f
s
I
I .
0
0
0
0
T c= 1 0.00 minute s
I -7 .700 in/hr Area (ac)
Q = 31.25 cfs We i ghted
Adju s t ed
Req uired Storage
-----------0.045 ac -ft
I
I•
0
0 0 0
I
I •
Q -28.00 c f s
(A ll ow .Outfl ow)
NOT TO SCA LE
============
~-----------------------:------------------------
11 .04 minut es
:
C:
C:
5 .12
0.79
0.79
Quick TR -55 Ver .5.46 S/N:
E xec uted: 11:02:40 03-19-1996
CITY OF COLLEGE STA TION
STORAGE DETERMINATIONS
MAXIMUM OUT NO MORE THAN 5 YEAR
**** Modified Rati o nal Hy d r ogra ph *****
We ight ed r -0.793 Area= 5.120 acres Tc = 10.00 minutes
Adjusted r -0.793 Td= 14.00 min. 1=1 1.18 in/hr Qp == 45.37 cfs
RETURN FREQUENCY: 1 00 year storm
Ou tpu t file: CS P1008 .HYD
Adj.factor= 1.00
Tim e
Hour s
HYD ROGRAPH FOR MAXI MUM STORAGE
For the 1 00 Year Storm
Time increment = 0 .017 Hour s
Time on left re present s t ime for first Q in eac h row.
--------:---------------------------------------------------------------
0 . 00 0 0. 00 4. 54 ·::;. 07 13. 61 1 8 . 15 22 . 68 27 . . -,.-,
..;:.k
0. 1 :L7 31 . 76 36. 2 '3 40. 83 45 . ':'-1
...JI 45. 37 45. 37 45. 37
0. 233 45. 37 40. 83 36. 2'3 3 1 . 7 G 27. :22 """)·-:· ..:....:... . 68 18. 1 5
0. 350 13. 61 ·::;. 07 4. 54 0. 00
Quio:k TR -55 VeY.5.46 S /N:
E x ecuted: 11:02:40 03 -19-1995
CITY OF COLLEGE STATION
STORAGE DETERMIN ATIO NS
MAXIMUM OUT NO MORE THAN 5 YEAR
**** Mo dified Rational HydYogYaph *****
Weighted r = 0.793 Area= 5.120 ao:Yes To: -10.00 minutes
Adju sted r -0.793 Td = 13.00 min. I ::::10. 20 in/ht-Qp= 41. 39 0: f s
RETURN FREQUENCY: 50 yeay stoYm
Output file: CSP508 .HYD
Ad J.fa o:to Y = 1.00
Time
Ho:•UY 5
HYDROGRAPH FOR MAXIMUM STORAGE
For the 50 YeaY StoYm
Time ino:Yement = 0.017 Hour s
Time on l eft re pYe se nt s time fo y fiYst Q in eao:h YOW.
--------:---------------------------------------------------------------o. 000 0. 00 4. 14 8. 28 1 ·-· ...:.:. . 42 16. 56 2(>. 70 24. 83
0. 1 17 28. '3 7 33. 1 1 37. 25 41 . 3'3 41 . 39 41 . 3 '3 41 . 3•3
0 . . -.,.,. ... ..::_,.:)...;, 37. .-.c:-
..::.\..J ~'";) ....J ... .J • 1 1 28. '37 24 . 83 20. 70 16. 56 1 ·-:· ..:... . 42
0. 350 8. 28 4. 14 0. 00
-------------------~
Quick TR -55 Ver.5.46 S/N:
E:1:e•cuted: 11: 02: 40 03 --1'3 --1'3'36
CITY OF COLLEGE STATION
STORAGE DETERMINATIONS
MAXIMUM OUT NO MORE THAN 5 YEAR
**** Modified Rational Hy drog rap h *****
Weighted C -0.793 Area= 5.120 acr es Tc -10.00 minutes
Adjusted C = 0.793 Td = 12.00 min.
RETURN FREQUENCY: 25 year storm
Output file: CSP25B .HYD
I = '3. 34 in/hr
Adj.factor = 1.00
HYDROGRAPH FO R MAXIMUM STORAGE .... ,,;:.-
L...J Yea1' Storm
Tim e inc re ment = 0.017 Hour s
Qp= 37. '30 c fs
Time
Hou·rs Time on left represent s time for first Q in eac h row.
--------:---------------------------------------------------------------
0.000 0 .00 3. 7 ·3 7 .58 1 1 . 37 15. 16 18.95 22.74
0. 117 26. 5 3 3c). 32 34. 1 1 37 . '30 37 . '30 37. '30 34. 1 1
(>. ~'233 3(> .. 32 26 .53 22.74 18. '35 15. 16 11. 37 7. 58
0.350 ':> 7'3 0. 00 ..., .
Quick TR -55 Ve Y.5 .46 S/N:
Executed: 11:02:40 03 -19-1996
CITY OF COLLEGE STAT ION
S TO RAGE DETERMINATIONS
MAXIMUM OUT NO MORE THAN 5 YE AR
·llHH'i··lE-Modi f i E?d l?at ion a l Hyd 1" og1" aph -*·-*·**'*·
Weighted r -0.793 AYea= 5.120 acres Tc -10.00 minutes
Adjusted C -0 .793 Tel = 10.00 min. I =::: 8. 30 in I h 1" 33.GB cfs
RETURN FREQUENCY: 10 year stor m
Output file: CSP10B .HYD
Adj. facto r = 1.00
HYDROGRAPH FOR MAXI MUM STORAGE
For th e 10 Year S torm
Tim e in crement = 0.017 Hours Time
Houl's Time on left represents time f or fir s t Q in each row.
0.000
0.117
(>. ~"233
o.
. -." .. :.:...::i.
20 .
00 , ....
.::i.
58 25.
2 1 16.
~'37 6 . 74
':.15 3(>. 31
84 13. 47
10. 1 (l 13. 47 16. 84 20.
~,""I
,:j.:J • 58 3(> • 31 25. ·35 23 .
10. 10 6. 74 ""I 37 0. .:;, .
21
58
00
Quic k TR -55 Ve r.5.46 S/N:
Exec uted : 11:02:40 03 -19-1996
CITY OF COLLEG E STATION
STORAGE DETERMINATIONS
MA XIMUM OUT NO MORE THA N 5 YEAR
**** Modified Ra tio na l Hydrogra ph *****
Weight e d C -0.793 Area= 5.120 acres Tc -1 0.00 minutes
Adju sted r -0.793 Td = 1 0 .00 mi n. I = 7.70 i n /hr Qp = 31.25 cfs
RE TU RN FREQ UENCY: 5 year stor m
Output fi l e: CSP5B .HYD
Adj.f actor= 1.00
Time
Hou rs
HYDROGRAPH FOR MAX IMU M STORAGE
For th e 5 Year Storm
Time incre ment = 0.017 Hours
Tim e o n l e ft repre se nt s ti me f or first Q in eac h row.
--------:---------------------------------------------------------------
0. 000 0. 00 ~ 1 0 6 . ~~ 9 . 37 1? 50 15 . 6~ 18. 75 w . ~ ~~ L
0. 1 17 21 . 87 ~~ L~. 00 28 . 1 ~ L 31 . 25 28. 1 ~ L ~~ 00 21 87 4W. .
0 . 233 18. 75 1 ~ 6~ 12. 50 9. 3 ·7 6. ~~ ~ 1 ·~ o. 00 ~. L L~ W• L
Quick TR -55 Ver.5.46 S/N:
E x ecuted: 11: 02: 40 03 -· 1'3-··1 '3 '3G
CITY OF COLLEGE S T AT ION
STORAGE DETERMINATIONS
MAXIMUM OUT NO MORE THA N 5 YEAR
* * * * * * SU MM ARY OF RATIONAL METHOD PEAK DI S CHARGES * * * * * *
Q = adj * C * I * A
Where: Q=cfs, C=Weighted Runoff Coefficient, I =in/hour, A=acres
adj = 'C ' adjustment f actor for eac h return frequency
Su b al'· e.:1
D ~?SC r.
GRASSED
F'AVED
Run i::_1 f f
, c::'
0.350
0. '300
A1"ea
ac l' es
1. 00
4. 12
T c
(min)
Wtd .
'C'
RETURN FREQUENCY = 100 years
~c' adjus tm ent , k = 1
P1d .j • ' C' '.::: ~~t d • ' C ' ~,; 1 -------------------------•---------------------------------.--------
Adj . , c, I
in/hr
Total
ai: r· es
: Peak Q
(cf s)
-----------------------------:-----------------------:--------
10.00 0.793 : : 0.793 12.500 5.12 : 50.72
Quick TR -5 5 VeY .5.46
E :,;£':)cu t e d : 11:02:40
S/N:
03 -·-l '3 --· 1 '3 '3 6
C ITY OF COL LEGE STATION
S TO RAGE DETERMINATIONS
MAXI MUM OUT NO MORE THAN 5 YEAR
o~· ·K--*· ·1< IE · -M· S LJMMAr~:' OF F.:AT I CJNAL METHOD F'EAI< DI SCHP1PGES ·* -M· -M ·IE-* *
Q = a dj * C * I * A
Wh e r e: Q=c f s , C=We ighted Pun o ff Coefficient, !=in/hour, A=acres
adj = 'C' a djustment factor f or e a c h return frequency
Subarea
De sr:r .
Pun o f f
'c'
T c
C:min)
~-Jt d.
'c'
RETURN FREQUENCY = 50 years
'C' adjustment, k = 1
Adj . ' C' =: Wt d. ' C' :1; 1 -------------------------•---------------------------------·--------
I I
I I
I I
I I
Adj.
'c'
I
in/hr
Total : F'eak Q
ac ~-es (cf s)
--------------------------:--------------: :-----------------------:--------
GPASSED
PAVED
0.35 0
0. '300
1. 0 0
4. 12
---------------:--------------: :-----------------------:--------
10. 00 0. 7·3 3 : : 0. 7·33 11 . 100 5.12 : 45 .04
Quic k TR-55 Ve r .5 .46 S/N:
E x e cut e d: 11 :02:40 03 -1 9-1 396
C IT Y OF COLL EG E S TATION
STORAGE DETERMINATIONS
MA XIMUM OUT NO MORE THAN 5 YEAR
* * * * * * S UMM ARY OF RA TION AL ME THOD PEAK DI S CHARGES * * * * * *
Q = a d j * C * I * A
Wh ere : Q=c f s , C=Weighte d Runo f f Coe f fic ient, !=in /h o u r , A=ac re s
adj = 'C' a d j u s t ment f a ctor f o r e a c h r eturn fr e quency
S ub ar ea
Des c r.
r:::u no ff , c , T c
(min )
~.J t d. , c ,
RETU RN FREQUE NCY = 2 5 y e a r s
~c ' a d just me n t , k = 1
Ad j . ' C ' = 1-Jt d • ' C ' :1; 1
-------------------------•---------------------------------.--------
Adj . , c, I
in/h r
T ota l
ac r es
: F'eak Q
(cf s )
--------------------------:--------------: :-----------------------:--------
GPAS SE D
P AVED
0 .350
o . ·;ioo
1.00
4 . 1 2
---------------:--------------: :-----------------------:--------
1 0 .0 0 0.79 3 : : 0.79 3 '3. '::JOO 5 .. 12 : 40.17
Quick TR -55 Ver.5.46 S /N:
E~.;ec ut ed: 11: 02: 40 03 --1 '3-·1 '3'36
C I TY OF COLLEGE STATION
STORAGE DETERMIN AT IONS
MAXIMUM OUT NO MORE THAN 5 YEAR
* * * * * * SUMMARY OF RATIONAL MET HOD PEAK DISCHARGE S * * * * * *
Q = adj * C * I * A
Whe re: Q=cfs , C=Weigh t e d Runoff Co ef ficient, !=in/h our, A=ac r es
adj = 'C' a dju s tment f ac to r for ea c h re turn fre qu e n cy
Subar·ea
Descr·.
F'.un of f
'c' acres
T c
(min)
l~td.
'C '
RE TU RN FREQUENCY = 10 years
'C' a djustment, k = 1
Ad .j • ' C' = Wt cJ • ' C' ~,; 1 -------------------------•---------------------------------.--------
I I
I Adj.
'C'
I
i n/h r
Total
acres
: Pea k Q
(c f s)
---------------------------------------------------------------:--------
C:il?ASSED
PAVED
0.350
0. '300
1. 00
4. 12
----------------------------------------------------:--------
10 . 00 0. 7•33 0. 7 •33 8.300 5.12 : 33.58
Quick TR -55 Ver .5.46 S/N:
E :1;e c ut ed: 11: 02: 40 03 -1 '3 --1 '3'36
CITY OF CO LLE GE STA TION
STORAGE DE T ERMINA TION S
MA XIMUM OU T NO MO RE T HAN 5 YEAR
* * * * * * SU MM ARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * *
Q = adj * C * I * A
Wh e re: Q=c f s , C=Weighted Runoff Coefficient, !=in/hour, A=acres
a dj = 'C' adju s tm e nt factor for each ret urn frequency
S ub .::ff ea
D e~;c Y .
F::un o f f
'c ,
Area
ac Ye s
Tc
(min)
~~t d.
'c'
RETURN FREQUENCY = 5 ye ars
'C' ad jus tment, k = 1
Ad .j • ' C' = Wt d • ' C ' :1; 1
-------------------------•---------------------------------·--------
Ad,j.
'c'
I
in/hY
Total
ao: Ye s
: Peak Q
(cf s)
----------------------------------------:-----------------------:--------
(:iRP1SSED
PAVED
0 .350
0 .900
1 . 00
4 . 12
---------------:--------------: :-----------------------:--------
10.00 0 .79 3 : : 0 .793 7.700 5.12 : 31.25
Quick TR -55 Ver.5.4G SIN:
Executed: 11 :02:40 03 -19 -1 996
************************************************************************
************************************************************************
*
MODIFIED RATIONAL METHOD *
*
* *
*
----Grand Summary For All Storm F r equencie s
*
* *
* * * ************************************************************************
************************************************************************
First peak outflow point ass umed to occur at Tc hydrograph recession leg.
CITY OF COLLEGE STAT ION
STORAGE DETERMINATIONS
MA XIMUM OUT NO MORE THA N 5 YE AR
Ar ea = 5.12 acres Tc = 10.00 minutes
•••"ll"""•"e11n11111111n 11 n11t11111n •11•••••••"n111111 .. 11111111t111t1•1111111111111111,.111111t1n11 11 1t11••••n•••••
11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 ti II 11 II II II II 11 11 II 11 11 11 11 II " 11 II II II II II II II II II II II II II II II II II II II II II II II II II II II II II II II II II II II II II II
Fr eq uency Adjusted DuYa tion Inten s . Qpeak
Cyears) 'C' minutes in/hr cfs
Allowable
cfs
VOLUMES
Inflow
(ac-ft)
Storage
Cac-ft)
------------------------------------------------------:---------------------
100 0. 793 14 1 1 . 180 45. 37 28 . 00 0. 8'~ I~ o. 347
50 0. 793 13 10. 200 41 . 39 28. 00 0. 74 1 0. 250
~~ L~ 0. 793 1 0 ~ 9. 340 37 . 90 28. 00 0. 525 0 . 172
10 0. 793 10 8. 300 ~~ uu . 58 28. 00 0 . 464 o. 078
5 o . 793 10 ~ 700 31 ~~ 28" 00 o. 430 0 . 045 I . L~
Quick TR-55 Vey.5.46
E :-·;e c u ted: 1 1:0 2 :40
S /N:
03-· l '3 -· 1 '3'35
MODIFIED RAT I ONAL METHOD
Summ a ry fo r Single StoYm F req u e nc y
F" ii·· s t p c·c:d :: o ut f 1 ow point a s sum e d to or: r: w r at Tc h y dy-og i·· aph i·· ec ess ion 1 eg.
C ITY OF COLLEGE STA TION
STORAGE DETERMINATIONS
MA XIMUM OU T NO MORE THAN 5 YEAR
RETURN FREQ UENC Y : 1 00 yy-'C' Adju s tment = 1.000 All owable Q = 28 .00 cfs
Hyd Y-ograph file d u ration = 14.00 minute s
Hy drogYaph file: CSP1008 .HYD Tc == 1 0.00 minutes
11 n• •• • "'" • • 11 n11 """ •• n """ • •• • • ••• ••• • • • • • • 11 11 11 • nn """ 11 • •••n• •• 1111 • • ••••• • •• • 11••••• "llllllll ll lO llll ••llllll llll llll"llllll•llllllllllllllllll•ll ll llllllllllll ll ltall M llllllll llllll•llllllll lllllla llllllll•llll•ll•llllllll
Wei ght e d Ad j u s t e d Duration I nten s . Ar·e as
'C' 'C' minut es in /hr acy-e s
Qpeak :
cf s
VOLUMES
Inf 1 C•W
C:ac--ft:>
Stoy-a g e
(ac-·ft )
------------------------------------------------------:---------------------
o. 7 ·33 0 . 7•33 1 0 1 2 .500 5. 1 2 5(>. 7~?. : 0. E/3'3 0.313
************************************************************ Storage Ma xi mum
0.793 0.7 93 14 1 1 .180 5.12 45.37 : 0.875 0.347
****************************************************************************
0. :7 ·33 o . 7•33 1 5 10. 850 c.-:·
,_) . 1 ·-· ..::. 44 . 03 0. '3 1 0 0. 347
o. 7 ')3 0 . 1 q r:i 20 '3. 200 i= 12 ,..,..., ,.,,.., 1 028 o . 2·;:,5 I ~'-' ....J. WI • ,_,__, .
o. 7 •33 0. 7•33 30 7. 533 r.::-
....J. :L 2 3(>. 57 1 . 2 53 0. 1 75
0 . 7•33 0. 7•33 40 6 . 267 I::" 12 .-.c:-43 Qp e ak .:" Da l l ow ...;. ..::....;.
Quick TR -55 Ver.5 .46 S /N:
E:1;(~C ut f2cl: 11: 0:2: 'l O 03 -... 1·:;1 -·1 ·:r::iG
MOD IF I ED RAT I Ol'~A L METHOD
Summary f or Sing l e Stor m F requency
First peak o u tflo w point ass um e d to occur a t Tc hydr ograph recession leg.
C ITY OF COLL EG E STA TION
STORAGE DE TERMINATIONS
MA XIM UM OUT NO MORE THAN 5 YE AR
RE TURN FREQ UENCY: 50 Yl" ~c' Adjustment = 1.000 Allowabl e Q = 28 .00 c fs
Hydrog ra ph file duration= 13.00 minutes
Hydrograph file: CSP508 .HYD T c == 10.00 minut es
••,.••"•••"•"•11••ww11111111ua""•••11 111111ft lllll ft••••••••nnt11111111111 11 t11111•""""•••••••••••••• ••••••11111111111••········ .. ······••11••···· .. ••••• .. ••••••••••••••••••••••••••••••••
~sighted Adjusted Duration In tens.
~c~ r C' min u tes in/hi--
Qp eak :
c f s
VOLUME S
Infl ow
(ac-ft)
Stc•rage
(ac -ft)
------------------------------------------------------:---------------------
0. 7';i3 10 11. 100 5 . 1 2 45.0 4 : 0.620 0 .235
******~***************************************************** Storage Maxi mum
0. 793 o. 7 •33 1 3 1 0 . 200 5. 12 4 1. 39 : o. 74 1 o. 250
•***************************************************************************
o. -7 ·33 0. ~''3 3 15 •3 . 600 r:::-1 ·-:· 38. •:JE, 0. 805 0. 245 ..J • ..:..
0 . 7 1 :3~~ 0 . 7·3 3 20 8. 1 00 c::-1 ·-:· '""'.-, 87 0 . '3 05 0. 17'3 . .J • ..:.. w...:.: •
o. 7·33 o. 7•33 30 5 . 633 I::':" ..J. 12 25. '32 Opeak < Qal low
Qui c k TR -5 5 Ver.5.46
E :1; e c u t e d : 1 l : 0 2 : 4 0
sn~:
03 -·· 1 '3 -···1 '3'35
MODIFIED RAT I ONAL ME THOD
Summ ary for Single Storm Frequency
Fir s t p ea k o u tf l ow poi n t ass u me d to o ccur a t T c h y d rogra ph recessi on l e g .
CITY OF COLLE GE STATIO N
S T ORAGE DETERMINAT ION S
MAXIMUM OUT NO MORE THA N 5 YEAR
RETUR N FREQUE NCY : 'C' Ad j u stme n t = 1 .000 All owab l e Q = 2 8.00 cfs
Hydrograph f ile d ura tion = 12.00 minu t es
Hy d rograph fi l e: CSP25B .HYD T c == 10 .00 minute s
t1•n ••11 ••n•n •"" • ••• n ••"" • •••• • n••• n """" • •• n • • • ••• • • • • • ••••• • ••••••• •• • •• "" ••• ....................................................................................
Weighted Adjusted Du ra tion Intens .
'C ' 'C' mi n ute s in/hr· ai:re.~s
Qpea k :
c f s
VOLUM ES
Infl o w
C: ac -·-ft )
S t or age
C:ac ····ft :>
-----------------------------·---·----------------------:---------------------
0. 7·33 10 '3 . '300 5. 12 40.17 : (>. 553 0.1 68
************************************************************ St o ra g e Ma x imum
0.793 0.793 12 9 .340 5 .1 2 3 7.9 0 : 0 .626 0.1 7 2
****************************************************************************
0 . 7 •33 0 . 7•33 15 8. 5 0 0 t:::" 1 ·-· 34 . 4'3 0 . 7 1 3 0 . 155 ...J. ..::.
0. -7·33 o. 7':J3 20 7 1 00 r.::-1 .-, 28. 8 1 0 . 7 ·:M . 0 . 075 . ...J • .. :.:.
o. 7 ·33 0. 7'3:-~ 3 0 r:::-...J . 8':'':' ....,...., c::-...J • 1 ·-· ..::. .-,,_, .a:.:.w • 57 Qpea k <" Qal l ow
Quick TR-55 Ver.5.4 6 S/N:
E x ecuted: 11:02:40 03 -19 -1996
MODIFIED RATIONAL METHOD
Summary for Single Storm Frequency
First peak outflow point assume d to occur at Tc hydrograph r e cession leg.
CITY OF COLLEGE STATION
STORAGE DETERMINAT IONS
MA XIMUM OUT NO MORE THAN 5 YEAR
RETURN FREQUENCY: 10 yr 'C' Adjustment = 1.000 Allowable Q = 28.00 cfs
Hydrograph file duration= 10.00 minute s
Hycirograph fil e : CSP 1 0B .HYD Tc = 10.00 minutes
•••n••••tl•aflU11••••••••••tt••••l'l••••••••••••11••••n••"••••••••••••••••••••••••• ···················································-·-······················
Weighted Adjusted Dura tion Intens. Areas
'C' 'C' minutes in/hr acres
0. 793 o . 793 15 7 . 250 ~ W • 1~ L
0. 793 0. 793 20 5. 200 r-1~ w . L
Qpeak :
cfs
29 . 42
~c 15 I ~~. I
VOLUMES
Inflow
(ac-ft)
0. 608
Qpeak ~
'
Storage
(ac -ft)
0. 053
Qal l ow
Quick TR -55 Ver.5.46 S/N:
Executed: 11 :02:40 0 3 -19-1 9 96
MODIFIED RA TION AL ME TH OD
S umm ary for Single Storm Fr e qu e nc y
Fi rst peak outflow point assu med to occur a t Tc h ydrogra ph rec ess ion leg.
CITY or COLLEGE S TATION
STORAGE DETERMIN ATIONS
MA XIMUM OUT NO MORE THAN 5 YEAR
RE TURN FREQUENCY: 5 yr 1 C' Adj u st me nt = 1.000 Allo wa bl e Q = 28.00 cf s
ll yd.,.-o g ·,·aph f ile du r·a tion =:: 1 0 .00 minute s
Hy d l' i::1g t " ,:\p h I i 1 r-::: C SF'~3 B . HYO T i:: :::: 10.00 minu tes
:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
Weigh t e d Adju s t ed Duration Int e n s .
1 C' 'C' minut es in/hr ac l' es
Opeak
cf s
'-/OLUMES
Inf 1 ot,.;
C:ac --ft)
Storag e
(ac-ft )
·------------------------------------------------------:---------------------
0. 7 ·33 15 5.550 ~:i. 12 :2 G. 58 : Qpeak < Qallow
--________ _....
SUMMARY
FREG
100 YR
50 YR
25 YR
10 YR
5 YR
STORAGE
DETERMINATIONS
WATERSHED C
VOL. STORAGE AF
0.573 I 0.402
0.266
0.102
0.042
Quick TR -55 VeY.5.46 S/N:
E ~,;ec ut ed: 11: 17: 08 03 --1'3 --·1 '3'35
F
L
0
w
f
s
MODIFIED RATIONAL METHOD
----Gyaphical Summayy for Ma ximum Requiyed StoYage ----
First peak outflow point a s sumed to occur at Tc hyciyograph recession leg.
CITY OF COLLEGE STATION
STORAGE DETERMINATIONS
MAXIMUM OUT 5 YEAR EXISTING
********************************************************************** * RETURN FREQUENCY: 100 yy Allow a ble Outflow: 53.00 cfs *
* 'C' Adjustment: 1.000 Required Storage : 0.573 ac-ft *
*--------------------------------------------------------------------* * Peak Infl ow : 81.39 cfs Inflow .HYO stored: CSP100C .HYD *
**********************************************************************
Appl'" 0 ~1;.
I . I
Td = 14 minutes
DuY ation foy Max. St 01' age ........... ·---·----I
Tc =
I --
Q --.
10.00
12.500
'31. 00
minutes
in /tw
cfs
Requi1'ed StoYage
0.573 ac -ft
X A X X X X x :x X X X X A X X X X X
F::etu t·n Fi'eq:
C ad.j.factoY:
Ai-ea (ac) :
Weighted c::
Ad.justed c::
100 yr
1. 00
8.70
0.84
0.84
Td ==
I -
Q =
14 minutes
11. 180 in/hr
81. 3''.:I cf s
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ~ Q== 53 .00 cfs
r:1
I
I•
I ... f
1 1_1 I
(Allow.Out flow)
NOT TO SCALE
::: = :.= == ===::::: == =====
'-----------------------:-----------------------------,------------
14 .18 minute s 1 7.4'3 minutes
Quick TR -55 VeY.5.46 S/N:
C:>·;E•c ut r0d: 1 l: l 7: 08 03-·-1'3 --·1 '3'3G
F
L
f
s
MODIFIED RATIONAL METHOD
----Graphical Su mm ary f or Maximum Required Storag e ----
First p ea k outflow point assumed to occur a t Tc hydrograph recess ion leg.
CITY OF COLLEGE STATI ON
STORAGE DETER MI NAT ION S
MAXIMUM OUT 5 YEAR EX ISTING
********************************************************************** * RETUR N FR EQ UENCY : 50 y r All owab le Outflow: 53.00 cfs *
·X· 'C' Ad.ju st ment: 1 . 0 0 0 Pequ i l" e d St or age: 0. 402 c:1c -ft -!!·
*--------------------------------------------------------------------* * Pe a k Inflow: 7 4.26 cfs Inf l ow .HYD s tored: CSP50C .HYD *
~*********************************************************************
Tel = 13 min u tes
!-------Appro x . Duration for Ma x . Storage ------/
I
• I '
T c:.:::
I --
Q --
10.00 minutes
11. 100 in/tw
80. 81 c f s
F.:equ i l" e d St 01·· ,'.:\g e
Pet urn F·r e q: 50 yr
C a dj. factc•r: 1. 00
?h· ea ( ac):
~fo ig ht ecl C :
Ad.ju s t ed C:
8.70
0.84
0.8 4
0.402 ac-ft Td = 1 3 m inutes
10.200 in/hr
74 .26 c fs
I --
X X X X X X x :x X X A X X X X X X X Q -
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
I
I•
NOT TO SCA L E
=============:::::=::::::.:::=
Q ::: 53. 00 cf~>
(p,J. low. Out flo•,.,1)
~-----------------------:-----------------------------:------------
13.44 minu tes 15. 85 minut E?S
luic k TR -5 5 Ver.5.4G S/N:
E>;ecute d: 11 : 1 7:08 03 -··1'::J -···1'::J '35
F
L
0
\,J
s
MODIFIED RATIONAL METHOD
----Grap hi cal S umm ary f or Max imum Required Storage ----
First pea k outflow poi nt assumed to o ccur at Tc hydrogr a ph recession leg.
C IT Y OF COLLEGE STAT ION
STORAGE DETERMINATIONS
MA XIMUM OUT 5 YEAR EX ISTING
********************************************************************** * RETURN FREQUENCY: 25 yr Allowable Outflow: 53 .00 cf s *
* 'C' Adju st ment: 1.000 Re q uire d Storage: 0 . 2GG ac --·ft ·~·
*--------------------------------------------------------------------*
M· Pea l:: Inf 1 ow: 70. 03 •: f s Inf 101,,1 • H YD s t o r· ed: CSF'25 C • HYD -l!·
******************************************«***************************
Td ,.:: 11 minutes
/·-------Appro x . Dur ation fo r Max. Sto ra ge
.
T·-=
I --
Q -·-
I
I .
1 0 .00
'3. '30 0
72 .07
minut es
in/hi'
c f s
Pequi1'ed Storage
0. 2GG ac--ft
X A X X X X x :x X X X X A X X X X X
l?et u rn Fre q: 25 yr
C adj . fact C•l' : 1 • 00
At· ea (ac) : 8.70
lrJeighted C: 0.84
Ad j u s ted c:: 0. 84
Td=
I =
Q --
11 minute s
'3.520 in/hir
70 .03 cfs
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Q--53. 00 c f ·5
I
I'
NO T TO SCALE
:::::::: == = ===:::: :::=:::: ::::::::
(Allow.Outflow )
~-----------------------:-----------------------------:------------
12.55 minute s 13.43 minutes
Quick TR -55 VeY.5.4G S/N :
E>:ec ut ecj : 11: 17: 08 03 -1 ·:~--·1 ·3·35
MODIFI ED RA TION AL METHOD
----GYaphical Summayy foy Max imum RequiY e d StoYage
C ITY OF COLLEGE S TATION
STORAGE DETERMINATIONS
MAXIMUM OUT 5 YEAR EX ISTIN G
**********************************************************************
RETURN FREQUENCY: 10 YY All owa ble Outflow:
'C' Adju st ment: 1.000 Requ iYe d Stoyage:
S TORM DURATION -Tc f or Max.Storage
53 . (l(l 0: f s
0. 102 a·:-ft
-M·
·M-
* *
* *--------------------------------------------------------------------*
* Peak Infl ow: 60.42 c fs I nf l ow .HYD stoYed: CSP 1 0C .HYD *
**********************************************************************
F
L
0
vJ
f
s
Cr
I
I•
Tc =:
I --
Q -·
10.00 minut e~;
8.300 in/hy
G0.42 cfs
Ai -c:?a ( ao:) :
Weighted C:
Adju sted C:
l?equ i ired St OY ~3qe
-----------0.1 02 ac-ft
I
I•
I
I •
Q :::: 53.00 c f s
.(Al 1 ow. Out fl ow)
NOT TO SCALE
:===============
~-----------------------:------------------------
11.23 minutes
8 .70
0 .84
0.84
Quick TR -55 Ve r.5.46
E ~1;ec u ted: 11:1 7:08
S /N:
03 ·-1'J --·1 'J ':JG
MDD I F I ED PAT I m ·IAL METHOD
-··-··---·-('.ii -c:1p h i r: a l Surnma 1·-y f Ol' Ma:·.-; i mum Req u i .,, ed St i::or age
CITY or CO L LEGE ST AT ION
STORAGE DE T E RMI NA T IO NS
MA XIMUM OU T 5 YEAR E XIS T IN G
*******~*~***•*************~******************************************
•*•
* RET URN FREQ UE NCY:
'C' Adju st me ri t: 1. 000
All o wa bl e Ou tfl o w:
Requi Ye d Stora ge:
53.00 r:f s
O. 042 ac --·ft
* STORM DU RATION -T c for Ma x .Stora g e *
*--------------------------------------------------------------------*
* Peak In f l ow: 55.06 c f s Inflow .HYD stored: CS P 5C .H YD *
****************************************•*****************************
F
L
0
w
f
s
I
• I •
C1
1 c:::::
I
Q =
1 0 .00
7 .700
5 5.0 5
m inut<-::>s
in /hr
cfs
Ai ··ea (ac):
Weigh te d r ··
Ad j u sted C :
Requ i t-ed St 01· aqe
----------·-0.042 ac -ft
I
I •
Q ::: 53 .00 c f s
I
I • (A llow.Ou t f l o w)
~·mT T O S CALE
==:=:.-=============
~-----------------------:------------------------
1 0.55 min ute s
8 .70
0 .84
0 .84
Qui ck TR -5 5 VeY.5.46 S/N :
E:.-;ec uted: 11: 1 7:08 03 ·-·1'3 --·1·3 ·::1G
C ITY OF COLLEGE STATI ON
STORA GE DETERMINATIONS
MAXIMUM OUT 5 YEAR EXISTING
*·:HH~· Modified
Weighted C = 0.837 Area =
F:c:1t i or .. 1c:.:i l Hy d1 " og1" aph -l•HH! .. JH~·
8.700 acres Tc -10.00 minutes
Adju s ted r = 0.837 Td ::::: 14.00 min. I =11. 18 in/11 ·( Qp== 81. 3'3 cf s
RETURN FREQUENCY: 100 year storm
Output fil e: CSP100C .HYD
Ad j .f ac tor = 1.00
Time
Hou Ys
HYDROGRAPH FOR MAXIMUM STORAGE
For th e 100 Year Storm
Time increment = 0.017 Hours
Time on l e ft repre se nt s time for first Q in each row.
--------:---------------------------------------------------------------
0. 000 0 . 00 8 . 14 1G. 28 24. 42 ,--..-,
..::i.L. 5G 40. 70 48. 8:3
0 . l 17 5G. ·:o 65. 1 1 73. 25 8 1 . 3'3 81 . ":l1::, ..... -81 . 3'3 81 . 3•3
o . . -,,..,,."\ 81 3·;;, 7'-:> .-,c:-55. 1 1 5G. ']7 48. 83 40. 70 ?·-:· 55 .. ::...::,,;, . ...... .L...J '-'..:...•
o. 350 24. 42 1 E,. 28 8. 14 o. 00
Qui c k TR -55 Ver.5.46 S/N:
E xecu ted: 11:17:08 03 -1 9 -1 996
CI TY OF COLLEGE STA TION
ST ORAG E DETERMINATIONS
MA XIMUM OUT 5 YEAR EX ISTING
**** Modified
Weight e d r -0.837 Area=
Ratio nal Hy drograph *****
8.700 acres Tc -10.00 minutes
Adjusted C -0.837 Td = 1 3 .0 0 min. I =l0.20 in /hr Qp = 7 4.26 cfs
RETURN FREQUENCY: 50 yea r s torm
Output fi l e: CSP50C .HYD
Adj. fac t or = 1.00
Time
Hours
HYDR OGR APH FOR MAXIM UM STORAGE
F or the 50 Year Storm
T i me in cre ment = 0.01 7 Hou rs
Time on left repr e se n t s time fo r first Q in eac h row.
--------:---------------------------------------------------------------
0. 000 0. 00 7. 43 1 ·4 • 85 22. 28 29. 70 37 . 13 44. 55
o . 1 17 51 . 98 59 . 40 55 . 83 74 . 2 6 7 4. 25 74 . 25 74 . 26
o. ~~~ 66 . a~ 59. 40 51 98 44 . 55 ~7 1 3 29. 70 22. 28 k~~ w~ . ~· .
o. 350 14 . 85 7. 43 0 . 00
Quick TR -55 Ver.5.46 SIN :
Executed: 11:1 7 :08 03 -19 -1996
C I TY OF COLLEGE STATION
STORAGE DETERMINATIONS
MAXIMUM OUT 5 YEAR EXISTING
1·*** Modified Rational Hy drograph *****
Weig ht e d C -0.837 Ar ea= 8.700 acres Tc -10.00 minutes
Adjusted r -0.837 Td = 11.00 min. I = 9.62 in/hr Qp = 70.03 cfs
RETURN FREQUENCY: 25 year storm
Output file: CSP25C .HYD
Adj.factor = 1.00
Tim e
Hours
HYDROGRAPH FOR MAXIMUM STORAGE
For the 25 Year Storm
Time increment = 0.01 7 Hour s
Time on left represent s time fo r first Q in each row.
--------:---------------------------------------------------------------
0. 000 0. 00 7. 00 14. 01 21 . 01 28 . 01 35. 02 42. 02
0. 1 17 49. 02 56. 03 63. 03 70 . 03 70 . 03 53. 03 56. 03
0. ~~~ 49 . 02 42. 02 ~~ 02 28 . 01 21 01 14. 01 7 . 00 LW~ w~. .
o. 350 0. 00
Quick TR -55 Ver .5.46 S/N:
E:,.:E·c u t ed: :L 1 : l 7: 08 0 3 -1 9 --1 '3 '36
CITY OF CO L L E GE STA TION
S TO RAGE DETE RMI NA TIONS
MA XIMUM OUT 5 YEAR EX I S TIN G
·*-·l'HH (· Modified Rat ional Hy d ·rog 1"e:'ph -l'!··~HHH'I·
Weighted C -0.837 Ar ea= 8.70 0 acres Tc = 10.00 minut es
Ad j u ste d r -0 .837 Td == 1 0 .00 mi n. I = 8. 30 in/hi,.
RETURN F REQUENCY: 1 0 year s t or m
Output fil e : CS P10C .HYD
Adj .fac tor = 1.00
HYD ROGRAPH FOR MAXIMUM STORAGE
F or th e 10 Yea r Storm
Tim e incre me n t = 0.017 Hour s
Qp = 50.4 2 cfs
Time
Hour s T i me on l e ft re pr ese nt s time for first Q in each row.
--------:---------------------------------------------------------------
0. 00 0 0. 0 0 5. 04 1 2 . 08 18. 1 ':> ·'-' 24 . 17 30. 21 35.25
0. 1 17 42 . 3 (> 4 8 . 3 4 5 4 . 3 8 60 . 42 54. 38 48. 34 4 ·-· ..::.. . 30
0 . . -,,,r""I ..::....::·..::i 36 . . -,r:-
..:'..-..! 30 . 21 24. 17 18. 13 1 ·-· ..::.. . 08 6. 04 0. 00
Qui c k T R-55 Ve r.5.4 G S /N:
E x e c ut e d: 11:1 7:08 03 -19-199 6
CITY OF COLLEGE S TATION
STORAGE DETERMINATION S
MAXIMUM OUT 5 YEAR EXISTING
**** Modified Rational Hydrograph *****
We i gh te d C -0 .837 Area= 8 .7 00 a cres Tc -10.00 minute s
Adju st ed C -0.837 Td = 10.00 min . I = 7.7 0 in /hr Qp = 56 .06 cfs
RETURN FREQUEN CY: 5 ye a r s t orm Adj .f ac tor = 1.00
Ou t p ut fil e : CSP5C .HYD
T i me
Hou rs
HYDROGRAPH FOR MA XIMUM STORAGE
For th e 5 Yea r Stor m
Time in cre men t ~ 0 .017 Hours
Tim e on left repre s ent s time for fi r st 0 in each row.
--------:---------------------------------------------------------------
0. 00 0 0. 0 0 ~ 51 1 1 21 1G. 82 22. 42 28. 03 ~~ G3 ~. . uu•
o. 1 17 39 . 2 4 44. 84 50. 45 56. 06 50. 45 44. 84 39. 24
0. ~~~ ~~ G3 28. 03 22. 42 lG. 82 1 1 21 ~ Gl 0. 00 ~~~ uuo . ~.
Quic k T R-55 Ver .5 .46
E:1;e cut e d: 11.: 1 7:08
S/N:
03-·· 1 '3·--1 '3'3G
CITY OF COLLEGE S TATION
STORAGE DETERMINATIONS
MA XI MUM OUT 5 YEAR EX ISTIN G
* * * * * * S UMMARY OF RATIONAL METH OD PEAK DISCHARGES * * * * * *
Q = ad j * C * I * A
Wh e re: Q=cfs , C=Weig h ted Runoff Co eff i c ient, I =in/hour, A=acres
a dj = 'C' adjustment fa c tor f or each retu rn frequenc y
Suba1' ea
Des•: r.
F:unoff
'c '
Ar ea T c
(m in)
Wtd .
'C'
RETURN FREQUENCY = 100 yea rs
'C' adjust ment, k = 1
Adj. 'C' = Wtd.'C' :1; 1 -------------------------•---------------------------------.--------
P1dj.
, c'
I
in/hr
: Peak Q
(cf s)
--------------------------:--------------: -----------------------:--------
GPA SS ED
PA\..'ED
0 .350
0. '30 0
1. 00
7.70
---------------:--------------: -----------------------:--------
10.00 0.83 7 : : 0.8 37 12 .500 8 .70 : '31. 00
Qui c k TR -5 5 Ver.5.46
E :.;ecutE·d: 11 :17 :08
SIN:
03 -·-1 ':J --1 ·:;i •;j[,
CI TY OF COLLEGE STATIO N
STORAGE DETERMINATIONS
MA XIMUM OUT 5 YEAR E XISTING
* * * * * * S UMMARY OF RATIONAL METHOD PEAK DISCHARGES * * * * * *
Q = adj * C * I * A
Where: Q=cfs, C=Weighted Runoff Coefficient, I =in/hour, A=acres
adj = 'C' adju s tment fa c tor for each ret u rn frequenc y
Suba·r· ea
Des•: r.
Punoff , c , Ar·e.=1
a cres
T c
(min)
Wtd. , c ,
RETURN FREQUENCY = 50 years
'C' a djustment, k = 1
Adj • ' C' = Wt d. ' C' :1; 1
-------------------------•---------------------------------.--------
Ad j .
'c '
I
in/h ·i'"
T ota l : Peak Q
(cf s)
----------------------------------------:-----------------------:--------
1::Jr:::AE)SED
F'AVED
0.350
o. ·::ioo
1. 00
7 .70
10.00 0.837 : : 0.837 11.100 8.70 : 80.81
Qui c k TR -55 Ver.5.46 S/N:
Exe c ut E?d: 11: l 7: 08 0 3 --1 ·3 -... 1 •3•35
CITY OF COLLEGE STA TIO N
STORAGE DETE RMINATION S
MA XIMUM OUT 5 YEAR EX I S T ING
* * * * * * S UMMARY OF RATIONAL METHOD PEAK DISCH ARG ES * * * * * *
Q = ~dj * C ~ I * A
Wh e re : Q=c fs, C=Weighted Runoff Coefficient, I =in/hour, A=acres
adj = 'C' adju s tment f ac tor f o r each return frequency
Subar e .:1
Dr2:;•: l' •
F::un o f f
'c,
T c
(min)
Wtd.
'c'
RE TURN FREQU ENCY = 25 years
~c ' adj u st me nt, k = 1
Adj . ' C' =: Wt d. ' C ' 7; 1 -------------------------•---------------------------------.--------
I I
' Adj.
'C'
I
in/h r
Tota l : Peak Q
(cf s)
--------------------------:---------------------------------------------
GPASSED
F'AVED
0 .350
o. '300
1 . 0 0
---------------:---------------------------------------------
10.00 0.837 : 0.837 ·::.r. '300 8.70 72 .07
Quic k TR -5 5 Ver.5.46 SIN:
E :,-;ec ut ed: 11: 1 7: 08 0 3 -· 1 '3 -···1 '3 '3G
C ITY OF COLLEGE S TATION
STORAGE DETERMINATION S
MA XIMUM OUT 5 YEAR EXISTIN G
* * * * * * SU MM ARY OF RATION AL METHOD P EAK DISCHARGE S * * * * * *
Q = a d j * C * I * A
Where : Q=c fs , C=Wei ghted Run of f Coe ffi c i ent , !=in /hour, A=acre s
adj = 'C' a d justment f ac tor f or ea ch return fr e quency
Su b area
Des•:r .
F'.un of f , c, Ar ec:1 T c
(m in)
Wtd.
'C'
RETURN FREQUENCY = 10 year s
~c ' a dju s tment, k = 1
Adj . ' C ' = Wt d. ' C ' :1; 1
-------------------------•---------------------------------.--------
I I
I I
I I
I I
Adj.
'c,
I
i n /ht-
T o tal
a cr-es
: Peak Q
(cf s)
--------------------------:--------------: :-----------------------:--------
Cil?A~3 SE D
F'AVE D
o. 3 5 0
0. '300
1 • 0 0
7 .7 0
---------------:--------------: :-----------------------:--------
10.0 0 0.8 3 7 : : 0 .837 8.300 8.70 : 60.42
Quick TR -55 Ver.5.46 S/N:
Executed: 11:17:08 0 3 -19 -1996
CITY OF COLLEGE S TATION
STORAGE DETERM I NATIONS
MAXIMUM OUT 5 YEAR EXISTING
* * * * * * S UMMAR Y OF RAT IONAL MET HOD PEAK DISCHARGES * * * * * *
Q = a dj * C * I * A
Wh ere: Q=c fs, C=Weighted Runoff Coefficient, I=in /hour, A=acres
adj = 'C ' ad ju s tm e nt fac tor f o r each return frequency
Su b ai'·ea
De ~-;c ·r .
F::uno ff , c, a cres
Tc
(min)
RETURN FREQUEN CY = 5 years
~c ' a dju stme nt, k = 1
~)dj. 'C'::: Wtd.'C' ~; 1 -------------------------•---------------------------------.--------
Adj. , c, I
in/hi'
Total
ac l ' es
: Peak Q
(cf s)
--------------------------:--------------: :-----------------------:--------
C:iF::ASSED
F'A 'v'E D
0.350
o . ·::ioo
1 . 00
7.70
------------------------------:-----------------------:--------
10.00 0.837 : : 0.837 7.700 8.70 : 56. 06
Quick TR -55 Ver.5 .46 S/N:
E :1; e c u t e d : 1 1 : 1 7 : 0 8 0 3 -1 '3 --1 ·3 ·3 G
************************************************************************
************************************************************************
MODIFIED RATIONAL METHOD
* ·lf-
·j"l'.-----Grand Su mm ary For All S torm F reque ncie s *
*
* * ************************************************************************
************************************************************************
First pea k outf l ow point assumed t o occur a t Tc hydrograph rec es sion leg.
CITY OF CO LLEGE STA TION
STORAGE DETERMINATIONS
MAXI MU M OUT 5 YEAR EX ISTING
A1 "ea ···· 8. 70 ac1'es Tc = 10.00 minutes
ftnn n """"ana11n a 11•••lll11••••n11 11•n•11n"11•t1 •nn•11nnn11nnn'l11lln111111na1111•aaa11"11a11 a 11naa a 11• •••• ".Ill ........ " ••• "." ................. """ •••••••••• " •••• "".,, .................. .
Frequency Ad justed Duration Int ens. Qpeak All owa ble :
Cyears) ~c' minut es in/hr c f s c f s
100 o. 837 l4 11. 1 80 81 . 3 '3 53. 00
!50 0. 83~7 13 10.200 74.26 53.00
.-.c:-.::....; 0.837 11 •:J. 520 70. 03 53 .00
:L O 0. 837 10 8. 300 G0.42 53.00
5 o. 837 1 0 7 . 700 55. OS r:;:-,-,
.,_)..:;, . 00
VOLUMES
Inf 101..J
Cac -ft)
1 . 5 70
1.330
1. 06 1
(>. 832
0.772
Sterr age
( ac --ft)
0 .573
o . 402
O. 2GE.
o . 102
0.042
Quick TR -55 Ve r.5.46 S/N:
E xec uted: 11:17:08 03-19-1996
MOD IF I ED RAT I 01\1(.~L MET l-IOD
S ummary for Single St or m Frequency
Fi rs t p ea k outflow point assumed to occur at T c hydrograph recession leg.
CITY OF COLLEGE STAT ION
STORAGE DETERMINATIONS
MAXIMUM OUT 5 YEAR EXISTING
RETURN FREQUENC Y: 100 yr ~c' Adju s tment = 1.000 Allowable Q = 53.00 cfs
Hy drograph file duration = 14 .00 minute s
Hy drograph file: CS P100C .HYD Tc :::: 10 .00 minutes
••••••"•"••n11•••••••• .. ••n •••••••••••••••11•11•••••••tt•••,.•••••••1t••11••••••••••
• • • • • • • 11 • • • • • • • • • II • • II II • • a • II II • • • II • • • II II It OI • • • • OI • • • • • • • II • • • • • • • • a • • • • II • • • • • • • • • •
Weig ht ed Adju sted Durati o n Inten s .
~c' 'C' minute s in /hr·
Ar· eas Qpeak :
cfs
VOLUMES
I nflow
( ac --ft)
Storage
(a c --ft )
------------------------------------------------------:---------------------
0.837 O.E337 10 12.500 8.70 '31 . 00 : 1. 253 (>. 523
************************************************************ Storage Maximum
0 .837 0.83 7 14 11.180 8.70 81.39 : 1.57 0 0.573
****************************************************************************
0. 837 0.837 15 10 . 850 8. 70 78. ·::;i-:3 1. E,'-:i·-:· ...., .... 0. 5E/3
0.837 0.837 20 9 .200 8 .70 bb. ':38 1 .845 0.461
0 .837 0.837 30 7.533 8.70 54 .84 2.265 0 .216
0 .83 7 0. 93 -7 40 6 .267 8. 70 45.62 Opeak < Qallow
Ou i c I:: TR -·55 Ve i·-. ~:i. 4G
E~1;ec ut e d: 1 l: 1 7: 08
S /N:
03--1 '3 --1 '3 '35
MODIFIED RATIONAL METHOD
Summ ,::n·y f·:·i·-S ingl e Stot-m Fi-equ e nc y
rirst peak outflow point as s umed to occu r a t Tc hydrograph recessio n leg.
C IT Y OF COLLEGE STATION
STORAGE DETERMINATIONS
MAXIMUM OUT 5 YEAR EXISTING
RETURN FREQUENC Y: 'C' Adju s tment = l.000 All owable Q = 53.00 cfs
Hy drogr«::i.ph file duration = 13.00 minLlte s
Hydrograph fil e : CSP50C .HYD Tc ::-.: 10.00 minutes
•• ••• ••"n•n n •11 ••••••II••••••• a•••••••••• n• ••a n a """•••••a n a •• ••••naa ••••a ,.. a•• .................................................................................
We ighted Adju sted Duration Intens.
'C ' 'C' minutes in/hr acres
Qpeak :
c fs
~/OLUMES
In flow
C:ac -f t)
Storage
C:ac-ft)
------------------------------------------------------:---------------------
0 .837 0.837 1 (l 11 . 100 8.70 80 .81 1. 113 0.383
************************************************************ Storage Maximum
0. 837 0. 837 13 10. 200 8. 70 74. 2E, : 1. 330 O . 402
****************************************************************************
0. 837 0. 837 15 9 . 500 8.7 0 b'3 . 8'3 1. 444 0.385
0.837 0.8 37 20 8. 100 8.70 58. '37 1 .524 (>. ::253
0 .837 0.83 7 30 E,. 533 8.7 0 48. 2'3 Qpeak .:·' Qallow ..
Quic k TR -55 Ver.5.4G
E:,:ec ut ed : 11:17:08
~3/N:
03-· 1'3 -.. ·1 '3'3 5
MODIFIED RATIONAL METHOD
Summary fo r Single Storm Fr e qu e n cy
First p ea k outflow point ass um e d to occur at Tc hy d rograph recess i on l eg .
CITY OF COLLEGE S TATION
STORAGE DETERMINATIONS
MA XIMUM OUT 5 YEAR EXISTING
RET URN FREQ UENC Y: 'C' Adju s tment = 1.000 All owable Q = 53.00 cfs
Hy drog rap h fi l e dur a ti o n = 11.00 mi n ut es
I !y dir ogr a ph f i 1 e: CSF'2 5C . HYD re =: 10. 00 mi n utes
••••"•••••••1t••••••••••••ri•••••••••••••••••••n •••••••••••••••••••••••••••••• ..............................................................................
We ighted Adju s t e d Dur a tion Int ens. Al' ea s
'C' 'C' minutes in/hr aci··es
Qpeak :
cfs
VOLUMES
In 'f 1 ow
(ac --ft)
Storage
(ac -ft)
------------------------------------------------------:---------------------
c). 837 0.837 1 0 "3. '300 8.70 72.07 : 0 . •3•33 0 .253
************************************************************ Storage Maximum
0. 8 3 7 0. 837 11 '3 . 520 8. 70 70. 03 : 1 . 05 1 0 . 255
****************************************************************************
0.8 37
0.837
0.83 7
0.837
1 5
20
8.500
7 .100
8.70
8 .70
51.88
51 . 5•3
1. 27"3 o . 228
Qpeak < Qa ll ow
Quic k TR -55 Ver.5.4 6 S /N:
E x ecut e d: 11 :1 7:08 0 3 -19 -1 996
MODI F IED RA TI ONA L METHOD
S um mary fo r S ing l e S t or m F re qu e nc y
F ir s t pea k outf l o w p o i n t ass um e d to o ccur a t T c h y dr o graph r eces s ion leg.
CITY OF COLLEGE ST ATION
S TORAGE DETERMI NA TI ON S
MA XIMUM OUT 5 YEA R EXISTING
RE TURN FRE QUEN CY : 10 y r ~c ' Adju s tm e nt = 1.000 All o wa bl e Q = 53.00 cfs
Hy d ro gr aph fil e dur a tion = 10.00 mi nute s
Hydr ogra p h fil e : CS P10C .HYD Tc = 10.00 minutes
••t1•n an11tt •a a n a 11 11 11a ann11•n """""""""""""""""""""""""""""•""""""""""""••••••t1••• ................................................................................
We ighted Ad j u s ted Dur ation Inten s .
~c ' 'C' mi n u te s in/hr
Ar e a s
ac res
Qp e ak :
c f s
VOLUMES
Inflow
Cac-ft)
Storage
Cac -ft)
------------------------------------------------------:---------------------
0 .83 7 0.8 37 15 7.250 8 .70 5 2.78 : Qpeak < Qallow
Quick TR -55 Ver.5.45
E >·;ec ut ed: 1 1 : 1 7:08
S/N:
03 -· 1 '3···-1 ·::;i ·::,it,
MODIFIED RATIONAL METHOD
Summary for Singl e Stor m Freque n cy
First pea k outflow poin t a ssumed to occur a t T i: h y dr ograp h recess ion l eg .
C IT Y OF COLLEGE S TATION
ST ORA GE DETERMINA TION S
MAXIMUM OUT 5 YEAR EX ISTIN G
RETURN FREQUENCY: 5 y·( ~c' Adjustment = 1.000 Allow able Q = 53.00 i:fs
Hydrograph f ile duration = 10 .00 min u tes
Hydro graph file: CSP5 C .HYD T·-== 1 0 .00 minutes
•••••••••••••a•••t1•na•••••••••••N •••••••••••10n rt••••n'll••••••••••••••••••11•••• ...................... " ...................................................... .
Weight ed Adju sted Dura tion Intens.
~c ' 'C ' min utes in/hr .. ac ·f es
Qpea k :
r: f s
VO LUMES
Inflow
(ac --ft)
St ot-age
(ai:··-ft )
------------------------------------------------------:---------------------
0 .837 (>. 837 ·I c:·
J . ..J G .550 8.70 47 .E.8 : Qpeak < Qallow
STORAGE
DETERMINATIONS
WATERSHED D, F, G, H
SUMMARY
FREQ. VOL STORAGE AF
100 YR. 2.870
50 YR. 2.197
25 YR. 1. 621
10 YR. 1.018
5 YR. 0.616
Du ii: I:: Tl?--55 '.JE"r". 5. ·~G
Exec uted : 1 2:04:4 0
S/!•I:
04 ···-o·::_i --:t ·:'.!·:;is
F
L
CJ
lrJ
f
s
MODIFIED RATION AL. METHOD
........... -...... l ~j·r .. c:lp 11 i •: ,";t 1 Su mm a l" y f Ol" Ma:·,; i mu m F'.e q u i reel St Oi' ,!\q e -----·
F"i.~"!";t p ee:\!:: outfl.o~,· p oi n t as~;um ed to oc i::u ·( a l; T•:: hydYC•\;ii-·ap h Yecess ion leg.
C IT Y OF COLLE GE Sl 'ATION
ST ORAGE DETERMINATIONS WATE RSHED D,F ,G,H
MA X OUT 5 YEAR EXIS TING
*************~********************************************************
·!!-F.:ETUR l\I FPEQLIEl'ICY : l 00 y i-.. Al l o •,J,:!l b l E·? Out fl ow: l 15. 00 c f s *
* 'C' Adjustmen t : 1 .00 0 Re q uired S torage: 2 .870 ac-ft *
*--------------------------------------------------------------------*
* P eak In flow: 1 97.99 c f s Infl ow .HY D stored: CSP100 D .HYD *
**********************************************************************
T d = 24 minut es
!-------Appro x . DuYation f or Max . Storage ------/
I
I •
Tc= 17.00 minutes
I = 10.130 in /hr
Q -2:::6. 42 c fs
F'.E?q u i 1·· ed S t or a ge
2. 8 7 0 a •::-·-ft
A X X X X X x :x A X X A A X X X X X
Return Freq : 100 y Y
C a d ,j. fac toY: l. 00
(..)r· ea ( ac ) :
l.-J eig hted C:
41.05
0.57
0.57 Adju s t c~d C:
T cl :::
I --
Q =
2 4 minut es
EL ~333 in/hr·
1 ·:r;r . ·3 ·3 c f s
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Q == 115.00 cfs
C:A llow.Out fl ow) I
I •
l\ICJT TO SCAL_E
() ===:: :::=:---.:::: ==== :::: ====
:-.--.:
~-----------------------:-----------------------------:------------
25.73 minu te::; 31.13 minutes
Quick TP -55 VeY.5.46 S/N:
Executed: 1 2:04 :40 04-09 -1996
MODIFIED RA TION AL MET HO D
----GYaphical Sum mary for Maxi mum Requ i re d Storage
CITY OF COLLEGE STA TION
S TO RAGE DETERMINATION S WAT ERS HED D,F,G ,H
MA X OUT 5 YEAR E XI S TING
**********************************************************************
* * RETUR N FREQUENCY: 50 yr Al l owa ble Outf l ow:
* 'C' Adju st ment : 1.000 Req uiYe d S torage:
-~·
115.00 cfs
2. 1 '3 7 ac---ft
* ·JE-
*
* * S TORM DURATION -T c for Max.Storage *
*--------------------------------------------------------------------*
·*· F'e a k Infl o~-J : 208 .81 cfs I nf l •:•'""' • HYD s t 01" ec:I: CSF'50D .H YD
**********************************************************************
F
L.
CJ
w
f
s
()
' '.
Tc= 17.00
I ---'3. 000
Q ···-2 08. 8 1
minut e<:.;
in /h 1"
cf i;::,
r.:ir ~'?a ( ac ) :
Weighted C:
Ad .ju sted C:
F:e qu i r <::?cl St or iO:lg e
-----------2 .197 ac-ft
' '.
I '.
O= :t 1 5. 00 cf~:;
(A 11 O'""'. Out f 1 ow )
NOT TO SCALE
::::========::::==
~-----------------------:------------------------
:24 . 54 minute s
41 . 0 5
0 .57
0.57
Quick T R-55 Ver.5 .46 S I N :
executed: 12:04:40 04-09 -1 996
MOD I FIE D RA TI ONAL METHO D
··--·-·-·-· 13r cip h i •::a l Su mm a !' y f ol' Ma:··: i mum P equ i ·re d St Ol' age
CITY OF CO LLEGE STATIO N
~>TDl:;::(4 (~E DE TE RM I NAT I Ul'.1'::1 vH~TE:F:fJ H[~D D , F-, G , H
MAX OUT 5 YEAR EXISTING
***************~*************************~****************************
1(·
.!.(.
·ll:·
RETURN F PEQUE NCY: 25 yr
'C' ?~cljust m ent: .I.. 000
Allowab l e Out flow :
Re q u i red Stol'age :
1 15.0 U cf s
1.52 1 ac --ft
* ST ORM DURATION Tc for Max.Stora g e *
*--------------------------------------------------------------------*
* Pea k I nflow : 184 .22 cfs I n f low .HYD s tor e d : CSP25 D .HYD *
**********************************************************************
F
L
0
(..J
f
s
I
I •
Tc==
I --
Q --
17 .00 m i nutE:s
7 . '340 in /h i'
1 El4 . 22 cf s
A r-ea ( a c ) :
~·JE:ight e d C:
AdjlJst ed c::
F.:eq u ii--e d S t Ol' a g e
-----------1.62 1 a c ·-f t
I
I•
I
I •
Q· .. -1 1 5. 0 0 c f s
C:A ll o w.Outflo w)
NO T TO SC AL E
::.-: :=:::: == :::::= == ::::::::::::=
Z3 . :3·3 m :i. nut es
41. 05
0.57
0.57
Quick TR -5 5 Ver .5 .46 S/N:
Exec uted: 12:04:40 0 4 -09-1996
MODIFIED RATIONAL METHOD
-............ C'.ir a p hi ca 1 Summ,;:..1 " y f ot· M21.:1; i mum Req u it" ed St O '( age
CITY OF COLLEGE STAT ION
S TORAGE DETERMINATIONS WAT ERS HED D,F,G,H
MAX OUT 5 YEAR EXIST ING
**********************************************************************
'"' ·~·
·~·
RETURN FREQUENCY: 10
'C' Adjustment: 1 . 000
Allowable Outflow:
Required Storage:
11 5 .00 cfs
1. 018 ac--·ft
'*'
* -!!·
·II:-
* S TORM DURATION -Tc f or Ma x .Storage *
*--------------------------------------------------------------------*
ii<· F'e.:~k Infl o •-': l5C:i .47 c f s I1 ·1fl ow .HYD s tored: CSP10D .HYD *
**********************************************************************
F
L
Cl
[,.J
f
5
I
I •
Cr
Tc==
I -···
Q =
1 7 .00
5 .830
1 58 .4 7
minut es
in /hr
cf s
(1\'· e~'3. ( ac ) :
Wei~~hted C:
Adju sted C:
F:e qu i r· f?d St •:•r ,::igE:?
-----------1.018 ac-ft
I
I•
C1 C1 C1
I
I•
IJ::: :l :l 5. 00 c f s
(Al 1 ow. Out f 1 0 1,.,1)
NOT TO SCA LE
============:.--=:::::=
~-----------------------:------------------------
21.65 minut es
41. 05
0.57
0.57
Qu. i c I:: TP --:':55 1./(::'r • '.S. 4C
E~e cuted: 12:04:40
S/N:
04 ·-0'3-· 1 '3'3f;,
MODIFIED RATION AL METHOD
----Grap hi cal Su mma ry for Ma x imu m Requi r ed Stor age
C IT Y OF CO LL EGE STA TION
S TOl?Ai:;E DE TERM HIAT I Ot\IS lrJ ATE P S H ED D ~ F y G ~ H
MAX OUT 5 YEA R EX I S TING
*************~****.***************************************************
RETURN FREQUENCY:
'C ' Adjustme nt: 1.00 0
"*
All owa bl e Ou tf l ow:
Required Stora ge:
11 5.00 cfs
0. E,16 ac···f t
* ST OPM DURA TION -T c f or Max .S t o rage *
·lE· ·-••.. ----··-.••..•..•• ·-·•·•••·• -·· •.•••. ---· ···-· .•.•.• -······-·-------··-••• ·---•.• ·-· ......• •••·•• ••. ----·-·-· -.•.. -·-••. ---------· ---·---- --------.•.• -*
·*· Pe .:.~ k Inf 1 ow: J. 41 . 30 c f s Inf J. o ' . HYD s t air eel: CSF''.:50 • HYD -M·
*****~****************************************************************
f
s
1
• I "
('.)
Ct
Tc=
I ....
Q -
1 7 .00 min utes
6 . 0'30 i. n I h r
141.30 cfs
{..)1 r E~a ( ac ) :
lrJe ight e cl C:
Adju s t e d C:
Pequ i ·re d S t •Yrr age
-----------O.G16 ac -ft
I
I•
() I
I •
[!:::: 115. 00 c f ~;
,C: Pr l l ow. Out f 1 o •,,i)
NOT TO SU-~LE
:::::::::::::::::::=:=:::::::=:=::::=::::
~ -·-· -·----·--·"MO·--·-00 .. ···-· .. ----·---· ----· ------: --Ooo-MoOOMOM -·-----·-·-·-·---·-------·--·--··-
20. 1 5 min ute '::'~
4 1 .05
0 .57
0.57
Duicl:: TP -55 '"v'cO?r.5.46 S/N:
Executed: 12:04:40 04 -09-1 996
C IT Y or COLLEGE STA T I ON
S TORAG E DETERMINATIONS WATERS HED D,F,G,H
MA X OUT 5 YE AR E XI ST IN G
.. ,·lHH'<· Modi f :i. t:!cl P ,::\t ion a l H yTfr o~p,. a ph ·11!-·lHHl!·-l!·
Weighted C -0 .565 Area= 41.050 acres T c -17.00 minute s
Adjust ed C -0 .565 Td == 24 .00 min. I == 8 . ~:;3 i n /h ·I'" Qp = 1 '::17. '3'3 c f s
RETURN FRE QUEN CY : 100 year s tor m
Output f :i.l e: CSP 1.00D .HYD
Adj.fac to r= 1.0 0
HYDRDGRAP H FOR MAX IMUM S TORAG E
For t he 100 Ye ar Stor m
Ti me in creme nt = 0 .0 1 7 Ho ur s Tim e
H OU1' s Time on le f t repre se n t s ti me f or fi rs t Q in ea ch row.
o .. 000 ,., 00 1 1 E.5 .-.'1 :2'j 34 . ·:1 4 46. 58 58. .. ... ,, E/3. ..... . ..::.~. LW
o . 1 1 7 8 1 . 5:2 '33. 1 7 1 04 . 82 J. 15. 1 '"" 'b 128. 1 1 1 3'3 . 75 1 5 1 .
0 . . ·-,,..~
.L ... J . .:J 1 6 :]. ()5 1 74. 5·3 186. 3,:l 1 ·:o . ·:r :i 1 '37. '3'3 1 '3 7. '39 1 '3 7.
0 . 35(> 1 '37. ·:r:i 1 '37 . ·3 ·3 1 ·~.:i-: ~I • '3 ':3 1 '37 . •=j•::J 1 85. 34 1 7 4. 5•3 l 53 .
o. 4 6 7 151 40 13'3 . .. 7r.:-1 ::rn. 1 1 1 1 6 . 4 5 1 04. 82 '33 11 1 7 81 . .' ._} .
0. 583 [)~). m J SB . ·-:·r:-i 45. 58 34 . •34 .-,,.. 2 '3 1 1 E,5 0 . ..:......J ..a:.:.._:. .. .
88
40
'3'3
05
c.::-.-, .. .J ..::.
00
Qui c k TR-55 Ver.5 .46 SIN:
E x ecuted : 12:04 :40 04 -09 -199 6
CITY OF COLLEGE STAT ION
P TORAGE DETERMINATIONS WATERS HED D,F,G ,H
MAX OUT 5 YEAR EXIS TING
-l!-*·K-·K· Modi f i ec:I F'.at :i i:::rn ;:1 l ~-l y d r-ogl'· aph -~·-M-~·*-*·
Weigh ted C --0.565 Area= 41.050 acres Tc -17.00 minutes
Adjusted C -0.555 Td ::-.:. 17.00 min. I=:= '3 .00 in/h 1" Qp == 208.81 cfs
PE.:::TUF :N 1=-PEOUErl CY: 50 ye,O\t" •:;tor·m
Output file: CSP50D .HYD
Adj. factor = 1.00
HYDRDGRAPH FOR MA XIMUM ST ORAGE
For the 5 0 Year Storm
Time increment = 0.017 Hour s Time
Hours Time on left represents time for first Q in eac h row.
0.000
o. 11 7
(> 11 ~.:15 ()
0 .457
0 . 00
B'::i. '3fJ
1 7 1 . ·::is
15'3. 5F~
·7 r_:\
I ,,.J " 70
1 --. L. 28 24. r=-, ...Jt
·=-is. 2·1 1 1 0. r.::-c::· ...J .__J
184. . ·-.~ l '36 • 53 ..::. ••• _I
14 7 . 40 13~5. 1 1
Gl . 42 4'3. 1 :_~
3G. 8~j 4'3. 1 '":> ,_, E.1 . 42 73.
1 ::2. CJ~l '-''-' 1 ~,c:::-~....) .. l 1 147 . 40 15'3.
208 . Dl 1 •3(:,. 5 :3 1!-34. ····11::.-171 ,:;__; .
1 22 . 83 1 10. t:·c ~J...J ·:H3. 27 85.
35 . ~3'.5 24. 57 12. 2::3 o.
70
58
'35
'38
00
Qui c k TP -55 \Je-.-.5 .46 f:3/N:
Executed: 12:04:40 0 4 -09-1 936
C IT Y OF CO L LEG E STA T I ON
ST UFJ.\ GE DE T E F:M 11\IA T I m i s vJfY Tl:::F:S HED ]) 'F' C::i' H
MAX OU T 5 YE AR EXIS TIN G
**** Mo di f ied Ratio n a l Hy d rog ra ph *****
Weight e d C -0.555 Ar ea= 41.050 acr e s T c -1 7 .00 mi nut es
Adju sted C -0.555 Td :::: 17.00 m:i n. I:::: 7. '34 :in /h ·r" Qp ::::: 1 84. :2 2 c f s
RETUPN F REQUENCY: 25 year storm
Ou tput fi l e : CSP25D .HY D
Adj .factor= 1.00
Ti me
1-k:i u rs.;
HYDROGRAPH FO R MA XIM UM S TORAGE
Ye a r St o r m
T i me i n cre ment = 0.01 7 Ho ur s
Ti me on le ft r e pre s e n ts ti me f or f i rs t Q in ea c h row .
--------:---------------------------------------------------------------
o. 000 o. 00 l (>. 8 4 21 57 .... ,·-:· 51 4 3 . 35 54. 1 8 S 5 . 0 2 . ...... 1 • .:.... •
o. 1 17 ~75 . BC 85 . r;·:j ·37. c.-......
~\:.·, 1 08 . ::;5 1 1 ·:L 20 1 30. 04 14 0 . 8 7
o. ;~33 1 ~.'31 7:!. 1 G2 . c.:.-c:..-1 73. 3t3 1 84. .·-.. ·-. 1 73 . 3 8 1 G2 . 1::-1::-151 71 . ._l._J ..:.:.. . ..::. ...J...J .
(). 35 (> 140. tl7 1 30. 04 1 1 •:J . 20 108 . 3E, •37 . 0:::-~1 ....;..;:, 85 . b '3 75. 8 6
o . 457 b~S. (l;~ 54 . :L B 43. ... -,,:.-,;:,,..} ~--. ..::1 •• :::.. .. 5 1 2 1 . 5 7 10. B4 0 . 0 0
Qui c I:: Tl :;::·-55 Ver. 5. 45 S/N:
E x ecu t ed= 12:04:40 04-09-1995
CITY OF COLLEGE STA T IO N
trTlJFA GE llETEF:M l NAT ION S \;Jr'HERS H ED D, F, 13, H
MAX OU T 5 YEAR E XIS TIN G
**** Modifi e d Fat ion a l Hydrograp h *****
Weig ht ed C -0.555 Area= 41.050 acres T c -1 7 .00 min u te s
Adjuste d C -0.565 Td = 1 7 .00 min . I= 5.83 in /hr
RETURN FR EQ UENCY: 10 year storm
Output fi l e: CSP 10D .HYD
Acij.fac t or = 1.00
HYDRDGRAPH F OR MAX IMU M S TOR AGE
For th e 10 Year Stor m
T ime incr e ment = 0.017 Ho urs
Qp= 158. 47 c t s
T im e
Hou·,-s T i me on lef t represe nt s time for firs t Q i n ea c h row.
--------:---------------------------------------------------------------
0.000
0. 117
(l. ~~:3 3
0. 3~30
0.457
0 .0 0
65.Z:i
130. ~:'j(l
1 2 1. lB
9 .32
7 4 .57
13'3. 82
:L l :l. ElE
4r;. G 1
18.EA
83. s·::1
1 4'3. 14
102 . ~::A
27 . ':JG
1 58 .47
'33 • .2 "2
27. '05
102 .54
149.14
83. 8'3
1 8.£;4
45.51
111 .86
13'3. 82
74 .57
'3. 32
55. '3 3
121.18
130.50
55.25
0.00
Quic k TR -55 Ver.5 .46 S/N :
E x ec ut ed : 1 2:0 4:40 0 4 -09-1 9 9 5
C IT Y OF COLLE GE STA T I ON
ST ORA GE DE T E RM I NATIO NS WATERS HED D,F,G,H
MA X OUT 5 YEAR E XI S TI NG
-l'i··~H'··!!· Mo dif i ed F:c-1t ion a l Hye.Jr · o~rr c1p h *··'!!-·II-*•'!·
Weigh te d C -0 .56 5 Ar e a= 41.050 a c r es T c -1 7.00 mi n ute s
AJju sted C -0.555 Tel =--" :1.7 .00 mi n . I ::::: E.:, .. O'J i n /hr· [1p :::: 14 1 • 3 0 c f s
RE T URN FREQU ENCY:
Output f i l e : CSP5D
5 y e air s t •:•rm
.HYD
Ad j .factor= 1.00
HYDROGRAP H F OR MA XI MUM S T ORAGE
r.::-,_, Y c;:ia r Stor m
Tim e in c rem ent = 0 .0 1 7 Ho u r s T i me
Ho u rs Tim e on l e f t r e p re s e n t s t i me for fi rst Q i n eac h row.
--------:---------------------------------------------------------------
0 . 0 0 0 0 . (l (l 8 . 31 15 . 5::~ 24 . '3 '.3 '".:'':) .-.r.:-4 1 55 4'9 . 87 W U t1 L ..J .
0. 1 l.7 58 . H :l 55. 4 '3 74 . 80 83 . l.2 ·:;ii . 4 3 '3 'J . 7 4 1 08 . 05
0 . . -,,,,., 1 16 . 35 124. 57 1 r )·""'.• ·:f 3 1 4 1 3() 1 ,,.-, •J'::J 1 2 4. 67 1 16. 3 6 L \.,J ..:J .,_,..._. . ~..:.:..
0 . 35 () 1 08 . 05 '3 '3. 74 '31 . .::i :~ 03 . 1 2 7 4 . 80 56 . 4'J 58 . 1 8
0. 467 4'J . 8 7 41 5G ~':) ":' .-,c:-2 4. '::)3 15 . s ·-· 8. 3 1 0 . 00 . ._, ._, . _L ,_I ..::.
Qu ic k TR-55 VeY.5.45 SIN:
E xe cut e d: 12:04 :40 0 4 -09 -1995
C IT Y OF COLLEGE S TATION
STO RAGE DETERMINATION S WATERSHED D,FyG,H
MA X OUT 5 YEAR EXIS T ING
* * * * * * SUM MARY OF RATIONAL METHOD PEAK D I SC HA RGES * * * * * *
Q = adj * C * I * A
Wh ere : Q=cfs, C=Weighted Runoff Coef f ic i e n t , I =in /hour, A=acres
adj ···· 'C::' ad .j 1...1~;t ment f acl:;i::·r· fo·,-f:::ach t·etu rn frequency
hu bar· f:?C::i
De scr .
F:un of f
'C'
T c
(m i ri)
l~ l; d .
'C'
RET URN FREQUENCY = 100 years
~c' adjustment, k = 1
f~d.j. 'C ' = l·Jtd. 'C' ~,; 1
-------------------------•---------------------------------.--------
t 1d .j "
'Cr
I
in /h r-
Tota l
acres
: F'eak Q
( 0: f s )
-----------·-----··-----------·-·-·-----------:-----------------------:--------
GRASSL::::D D
0. 35() 1 2 . l -,
I
F'f.V-..i l'.::D D
o. ':10 0 r.:;-
..__I" 38
F:EE! I DEl'.ff r··· ,.
0. GOO 1. " c-· • .. ::.
PF.::SI DEN T r·· .:T
o. GOO 14 . .-·,r.:;-
~,_f
P ESIDENT H
o. 600 7 . c:;-,..,
1...J..::i
-· ---·------·-·--·---·-·-·---·----·-·---•-• -·--· --·-• -·-•••• -W•--: ··-· ••-• ------·-· ··--··· ·--·-----· ---·---· ·-· .... -·· --· -l --·-·-·-.. _ -----
17.00 0.555 : : 0.565 10. 1 '30 41.05 : z:~ s . 4 2
Qui r:: I:. T F.:--5 5 ')e ·1·. 5. 4f, S/N:
E >·;G •::: u t ed: l 2: 0 4: ·~ 0 04 -·-o ·=J --· 1 ·:;1·35
CIT Y OF COL LEGE S TAT I ON
S T ORAGE DET E RMINAT I ONS WA T E RSHED D,F,G ,H
MAX OU T 5 YEAR E XIS TIN G
~ * ~ * * * S UMM ARY OF RAT I ONAL MET HOD P E AK DI S CH ARGE S * * * * * *
Q = adj * C * I * A
Wh e r e : Q=c f s , C=We ighted Ru n of f Co e f fici en t, I =i n/h o u r , A=a c re s
C1d j "" 'C ' a cJ .j u s tm t-::>nt f a c to ·r f,y ,-each i·e tux n f1·eq u.t:?n cy
Su bar·ea
De sc r.
l?uno ff
'C ' a.c -res
T c
(mi n)
l.<Jtd .
'C '
RETURN FR E QUENC Y = 50 y ea r s
'C ' ad ju s t men t, k = 1
r.:'1cl j . ' C' ::: Wt d • ' C ' 7; 1
-------------------------•---------------------------------.--------
Ad j. , c, T o t a l
Cl.Cl'f-::>S
: Pea k Q
(c f s )
---------------------------:--------------: :-----------------------:--------
(3 P ?"\SSE D D
0. 350 L2. 1 7
F'A \/E~D D
0. ·::ioo 1::-...J . 38
F::E~:; I 01'.::NT F
0.6 0 0 l. e,·-· ..::.
F.:ES I DENT (3
0. 5 00 1 4 . , ..... r.::-..;),J
RE S I DE ~H H
0 . 600 7 . i:=-r-i
...J ..J
1 7.00 0 .5 6 5 : : 0 .565 '3 . 0 00 4 1.05 : 2 0 8 .81
Quick TR-55 Ver.5.46 S/N:
Exec ut e d: 1 2:04:4 0 04-09-1996
C ITY OF COL L EGE STAT I ON
S TORAGE DETER MINATION S WATERSHED D,F,G,H
MAX OUT 5 YEAR E XIS TI NG
* * * * ~ ~ S UMM ARY OF R ATION ~L METH OD PEAK DISC HARGES * * * * * *
Q = a dj * C * I * A
VJ h et-e: ()::::c fs;, C ·::l·J!.':.;ighted Punoft Co eff i c i ent, I ==in/hou ·r, f.'i=acr es
adj -'C' adj u st ment fact or for each 1-e tu rn f reque ncy
f3ub c.:n-e ,3
De s •: r .
kuno f f
'c'
Ay·ea ·r e
(min)
Wt cl.
' c::'
RETURN FREQUE NCY = 25 years
'C' a djus t ment, k = 1
Acl j . ' C' ='-l·Jt d • ' C' :·1; 1
-------------------------•---------------------------------.--------
?'.I d j.
'C'
I
in/tw
Total : F'E,a k Q
(cf s)
-----------------·---------:--------------: :-----------------------:--------
GPASSED D
o. 35() 1 ·-· ....::.. 17
PA\..'ED D
o. ·:;·oo <=-,..,,..,
...J .. ..:iC.1
F:ES IDENT 1:-
0. 500 1 . 5 ·-:· ....
r:::ES I DENT G
0. GOO 1 4 . '""lC:" .::i....J
f?ESI DENT H
o. 500 7 . r.:;-r-\
._J._;j
---------------:--------------: :-----------------------:--------
t 7. 00 0 . 5S5 : : 0. ~:iS5 41.05 : 184.22
Quick TR -55 VeY.5.46 S/N :
E x ecuted: 1 2 :04:4U 0 4 -09 -1996
CITY OF COLLEGE STATIO N
~)TlJF'.t1l~iE DETEF'.M I l'-ff~T I m-,JS l'H-i TEF'.SHED D, F:-, 13, H
MAX OUT 5 YEAR E XISTING
* * * * * ~ S UMMARY OF RATIONAL METHOD PEAK DISC HA RGES * * * * * *
Q = a dj * C * I * A
Wh e re: Q=cf s , C~We ig ht ed Runoff Coefficient, !=in /ho ur~ A=acres
a d j = 'C' adjust ment factor for ea c h return frequency
Subaire a
Desc ·r-.
GF'.ASSED
F'f-'11..'ED
F:ES I Dt~N T
l?ESIDENT
l~:ESIDENT
F::un c• ff
r C'
D
0. 35<)
D
0. ·:;r oo
r:·
0. 500
Ci
0. 500
H
o. GOO
Area
ac1r es
12. 1 7
c::-J. 38
l . c;:,-. ..::.
14 • I~\ c.-
... J....J
'7 t:"r"1
I . '-~'..;:,,
T c
(min)
~-.Jt d.
, C'
RETURN FREQUE NCY = 10 years
'C' adjustmen t, k = 1
Adj • ' C' === t.-Jt d • ' C' :1; 1
-------------------------•---------------------------------,--------
(..klj .
'c,
I
in/hr
Teit<~l
acres
: F't:~dk Q
(cf s)
---------------:--------------: :-----------------------:--------
17.00 0.565 : : 0.565 G.830 4 1..05 : 158.47
-------------
Quick TR -55 Ve r .5.4 6
F.'.. :1; t? c u t e d : .l 2 : 0 "f : 4 1)
~3/N:
04 -··0'3 ---1 '3'35
CITY OF COLLEGE STAT ION
STORAGE DETERMINATIONS WATERSHED D,F,G,H
MAX OUT 5 YEAR E XISTING
Q = adj * C * I * A
Wh e re: Q=cf s , C =Weighted Runoff Coefficient, I =in/hour, A=acres
adj ~ 'C' a dju s tment factor for each return frequen cy
Sul::l a 1' ea
Dt:?'.":•C )''.
l?un c:iff
'c:' ai:.,... es
Tc
( rn in:>
~~t d. , c::,
RETURN FREQUENCY = 5 years
~c' adjustment, k = 1
Adj • ' C' ::::: ~·Jt d. ' C' :>; 1
-------------------------•---------------------------------,--------
Acl ,j •
' c,
I
:in/h;--
Total : Peak Q
(c f s)
--·------··---···--------·---------------------:-----------------------:--------
GRASSED D
o. =~5() 12. 1 7
F'P1\,J f~D D
o. '300 r::-,..! • 38
l?E:~'3IDEtH F'
0. r.:.oo l " 5:2
PESIDE NT Ci
0. E,(lt) 14. ,. .. ,r.::·
w~J
PES IDENT , .. ,
0. GOO 7 . C:-~\ ,_),::,
---------------:--------------: :-----------------------:--------
:l 7. 00 0. 5C5 : : 0. 555 5. 0'30 4 :l. 05 : 141.30
Quick TR -55 Ver .5.4 6 S/N:
Exec ut e d : 12:04:40 04 -09 -1 996
**************~*********************************************************
************~~**~*******************************************************
~-
-~
MODIFIED RATIONA L METHOD
·!(-----Grand Su mm ary F or All Storm F re qu encies
.;-.;.
****************~*~~~***********~****~**********************************
****~~**¥~***~··~~***~**************************************************
Fir st peak o utfl ow point a s s umed to occur at T c hydrogr ap h recession leg.
CITY OF COLLEGE S T ATI ON
S TORAGE DE TERMINATIONS WATE RS HED D ,F,G,H
MAX OUT 5 YE AR EXIST I NG
41. 05 ac r-es T·-::: 1 7 .00 mi n utes
""""""""••••r<•••tt,.n11t111 •n 111111111111••••••••••"""'""""""""""""""""""""••1111 n 1111 ,.11 111111 11 •••11•••••••••"""'"""""""""""""""""""""··· ....................................... .
Freque:-"?ncy
(yea 1'·s )
10 0
50
. -.c-.. :.:..._•
J.O
5
(-.1cLj us t eel
' c:: ,
0 . 5G5
o. ~5G5
0. 5E,5
0. SGS
o . 55':.:i
Dtxr,::i.t ion Int ens.
m inutes in /h 1"
24 8. 533
17 '3. 000
1 7 7 . '34 0
17 G. 830
17 5. ()".j(l
fJpE•ak
cf s
1 '3 7 " ·:v:i
208 . 81
1 84 . .-···-:· ...:......:..
1'.58 . 47
1 41 . 30
P1 l l 01,,.Ja bl e
c f <;;:,
1 15 . 00
1 1 5 . 00
1 1 5. 00
l 1 5. 00
l 15. 00
VO LUM ES
Inf 101..,1
(ac --·ft)
G. 545
4. 8 '30
4. 314 ,..,
.:;,. 7 1 1 ,.., 30·:-1 .:;, .
Storaqe
( ac --ft)
... ) 870 ..:.. .
·-:· 1 ·:17 ..:...
1 . 621
1 . 018
0. 515
Q u i c I·: T F: ·--5 5 \..h:: r · • 5 .. :1 G S / N :
CC>-:ec u t e cl: 12: 04 : 4 0 0 4 -·-0'3 --·1'3'36
1·10D Ir· I ED F.:A T I ON P1L t-IETHOD
~:;umm c:i:r·y for S ingli:.-::.· S toi-m r ·r·equf::i nc y
r· i i .. ~;t p e .::1 I:: c;u t f 1 c•i.-J pc• int <:i.ss u mecl to oc c u ·r c-1t T c h y dr o gt-a p~i ·r e·c ess ion 1 eg.
CITY OF COLLEGE S TAT I ON
S TORAGE DETERMINATION S WATERS HED D,F,G,H
MAX OUT 5 YEAR E XI S TIN G
RETURN F REQ UEN CY~ 100 yr ~c · A dj u s tm e n t ~ 1.000 Allo wa bl e Q = 115.00 cfs
l ··lylfrog 1'·,:1p h fil e clu ·1-Ed;i.o n == 24.00 minutes
Hy rfr o g1' aph f i l E~: C S F' 1 O OD • H Y D T i:: ::: 17.00 minute s
" •••• 11 $1 11 •• II 'II "•" ......... " ...... """ ..................................... " ••• " ...... . ........................................................................................
\IOLIJMES
~e lgh ted Adj u st e d Du ratio n Inten s .
'C' 'C' mi nut es in/hr· ai:::r e s
Qpeak :
cf s
Inf 1 0 1,,1
( ac --ft )
St or· age
(a c --·ft )
··-----------·----------------------------------------:---------------------
<),, 5(J5
0.555 0. 5E.0 5
1 7
20
1 o . 1 ·::io
'3 . :2 0 0
41.0 5
41 . 0 !'.5
2 3 5 .42
213 .4 5 :
5. 53£,
5.880
~**************~******************************************** St or a ge
0.56 5 0.565 24 8.533 41.0 5 1 97.99 : G.545
2.843
2 .783
Ma ~,; i mum
2 .870
K *K******~******************************************************************
r) 5G 5 0 . 555 30 7. t::"''"'\'; 41 0 5 174. 78 I ·-:· ··-:· --:'• 2. 701 . ..J...jW . I . ..:....:..~
(i. 50,5 0. 5E,~5 40 6 . 2 S7 4 1 . 0 5 145. 40 8. 0 1 1 2. 085
o . ~;b!S 0. 5f:.~5 50 c~ ...J. 400 41. . 0 5 L25. 2'3 8. 62'3 1 . 28'3
o. 5 C5 0. 5b J bO 4. 85 7 4 1 . 05 1 1 ·-· ..::. . '31 Qpea k < Qal 1 Ot,.,I
Quick TR-55 Ver.5.46
[::--:ec ut ed: 1 ::;:: : 04: 40
S/r-J:
04 -··0 'J -·· 1 '3 '3C
MODIFIED RATIONAL METHOD
Summary f or Sing l e Storm Frequenc y
r -:i.1·s t p1:::<:1l :: oulflo•.,• point a~;s:.umt:d to i:::ii:i:u ·( c:i t Tc hydyo~~r·a ph 1"ecession l eg.
C IT Y OF COLLEGE STA TION
STOF.:r~r:3E DETEPM I NAT IONS l·JATEPS HED D, F, (3, H
MAX OUT 5 YEAP E ~IST IN G
RETURN rRCQUENCY: 'C' Adjust ment = 1.000 A ll owable Q = 115.00 i:fs
l·lycir·ogr·c:1ph f:i.lt:; du ·1 .. i:\tion == 1 7.00 m:inutPs
ly dr ogr aph file: CSF'SOD . HYO T c == 17.00 minute s
•••"•••••n•••n11•••• .. •••••••11'<••••10.a10•••••""""•"••••aat11:1a••••••t1••••••••••••• ............................................... 11,.••····························· .. ····
Weighted AdjusteJ Duration Inten s .
'C' 'C' minutes in /hr
(~r-eas Dp<-?a k :
i:: fs
'"'OLUMES
Inflow
( ai:: --ft )
St or-age
(ac·-·f t)
1t********~~*1t*~~~*~*~~************************************** Stoy-age Maxi mum
0.565 0.565 17 9.000 41.05 208.81 4.830 2.197
**************************~~************************************************
0. 5C5 o. '.'5G5 20 8. 100 41 05 1 ff?. '33 1:.:-1 '"17 .·~, 0·:32 . d. I I .. ::. .
o. 5G5 0. 5£.5 30 E," E, "'.''"" ...., ...., 41 . 0~5 153. '30 E,. 3E,O 1 . 872
0 . ~30.15 0. 5G5 40 t:' 500 41 05 127 . 5 1 7 03 1 1 1E,7 ~1. . I . .
l) . 5E5 0 .. 555 50 ''t. 700 41 " 0~) 1 o·::i. 05 Qpeo:xk .. · Da l 1 C1I,,,.)
Quick TR -55 Ver .5.46
E :1; e c u t e d : 1 2 : O 4 : 41)
'.3/N:
04 --·(l'~J ... 1 ·:;i-::;i5
MODIFIED RATION AL METHOD
S umma ry for Sin gl e Stor m F requency
First peak outflow point assume d t o occur a t Tc hydrogYaph recess ion l eg.
C IT Y OF COLLEGE STAT ION
STO RAGE DE TE RMINATION S WATERS HED D,F,G,H
MP1X OUT 5 YE r-1P E XI S THK:i
RE TURN FPEQUENC Y~ 'C' Adjust ment = 1 .000 Al l owa bl e Q = 115.00 cfs
H y di" o g y· aph -f i 1 E.' dui" <::1t ion = 1 7 . 00 mi nu t f;?s;
H/dl" c•g1" ap h f i l. e: C SF'2'.:iD . H YD T c :::: 17 .00 minute s
"""""""•""•l'lw1111t11111ttn w ttn1111•n11111t111•11"111111tt•••ftotftftftl'll'l1l1lflll ll llll l'l fl KW1t11 •11"11•n•••nn•••••
11"11 11•ll llllllll ll llllllttll•llll llllllltllft•""""""'""11•111111••1111 .. 11otw nllMWll ft lllllllll lllt llll Ol llllllllllll•ll•lllllllllll
Weighted Adju sted Durati on In te n s. Ar eas
~c' 'C' m inutes i n /ht· ac i'·es
Qpeak :
c f s
VOLUMES
I 11 f 1 ow
(ac-ft)
Sto·r aqe
( ac -··ft )
-•o ··---·--· • ••••• '' -- -•-• -~ -·• -•• -· •-•• ... _ ----·--·-_,,, ''''" -----· •-----·•• ••-• ---·--· --•••-"'"" ,_., ,,,_ •H--·--· •••' ----· ••--••• -·----· 00---: ··-· 00-••--·--·-·--··-··-·----••--·-· --.,._ ·------
******************************************~***************** Storage Maximum
0 .565 0 .565 1 7 7.940 4 1.05 1 84 .22 : 4.3 14 l .621
*~**************************************************************************
0 . 565 0. 5 E.5 20 7. :LO O 4 1 05 164 . "7':"1 .:j.. 538 1 4G '3 . I '-' .
0 . 5f:.i5 0. 5 65 30 "" Q ':\'":\ 41 0 5 1 . ...,.,. 34 r_-:-5'33 1 14 4 ....;. '-''-''-' . ..::.i....J . ...J • .
o. 5G5 0. 5C,5 40 4 . 867 41 05 1 12. ·:;, 1 Qpea k .. · Dal 1 ow .
Qui ck TR -5 5 Ve Y.5.46 S/N:
E~':e •:: ut; f2d : 1 2: 04: 4() 0·1-···1)'3-·· 1 '3'35
MODIFIE D RA TI ONAL ME THOD
Su mmayy foy Sinqle Stoy m Frequenc y
F"i t .. s t p r::'!c:~I ·: c •utfl o 1.H p i:.:i inl a~;~:;u r ned l:;i:.:i oc •::u r· c:1 t Tc hycJ1 "og ra ph l"Pr:ession l eg .
C ITY OF COLLEGE S TA T ION
S TORAGE DETE RMINATIO NS WATERSHED D,F,G,H
MAX OUT 5 YEAR E XIS TI NG
RCT URN FREQUENCY: :LO Y l ' •er Adju s tment = 1 .000 A ll owable Q = 115 .00 cfs
H yci1"o gi,.e:1ph file c.1ur·ation= 17.00 mi 1··1 ut e~;
Hydrograph fil e: CSP 10D .HYD
tt • • A • II 11 n " • n • ti • ft • n a • IO II II • • • • • • ft " ft a • p • • • • • 11 • • • n ft ti n 11 • ft • w ft • n • • a 111 a • • Q .. • a a • • • • • • 11 • .. ............................................................................................................
Weighted Adju s ted DL!i'"c:<.t ion I nt ens .
'C' 'C' minut es in/h1 "
Dpeak
r: f s
VO LUM ES
I 11 f 1 01,.J
( o.r: --·ft)
Sto·rc-1ge
(ac·--ft)
~~***************~**********************~******************* Stoyag e Maximum
0.565 0.565 17 G.83 0 41.05 158.47 : 3 .7 11 1.0 1 8
*~*****************~*********************~**********************************
0 ~::3 ()!2_-j 0 '56 5 20 (;. 200 4 1 (>5 1 .::J':' 85 ':' '3G3 0 8'34 . . . . ...., . ,_, . .
o. ~5G 5 o. ~5G5 30 t::' 057 41 (>~j 1 :l ., t:"C:-4 858 0. 4 4 5 ·.J. . ' . ,_) . .J .
0 . 5f;5 o . SE.5 40 4 . 200 4 1 . (l~.:i •:'.17 4 5 Dpeak .:·· Da.l 1 C1W ~, .
Ou ii:: I: T l? .. ·5 5 '-.'c~r • ~:i . 46
E:·<f?c ut E·cJ : :L 2 : ('·::!·: 40
S/l·.I :
04·-·0'~)""· l ':1':36
l''1DD Ir-I ED r;:P1T I ml i"il_ ME:.THDD
Su rTH n<:u -y for· Si 1 -,~~ 1. e St o·I" rn F·, .. t:?que r1 c y
r-il"~;t pE•a k 01...tt flo•.v 1oi.nt .:i.s:::.umf:.>cJ to OC•:ur-c:i.t T c h '/d l' ogr"E1.pt·1 r ·ei::e~;si.o n l ea.
CI TY or COLLEGE STA TION
STORAGE DETERMINATIO N S wnTE RS H ED D,F,G,H
MA X OUT 5 YEA R E X I S TING
RET URN FREQUE NC Y: ~c· Adjust ment -1.000 Allo wable Q ~ 115.00 i::f s
:1_Y·d1"o g r<.ip l ·1 file du1 .. ;,71t:i.or·1"' 1 7 .00 m.inutE2r::
Hydro graph file: CSPSD .H YD 17.00 minute s
••1'1 •H•••••n •lf l1111•••l!l,.nu1tna111111 1t111t•""""""'°"""""""""""""""""~tt••"•"s"11 "1111 n11 ••••• II " I• II 11 II II II lt II II II II II OI II II II M It .. >I II II II II II " II II II II II II tf II " t< H II II II n • II • II II II II II II If II M II II M II II " II ll II II • II II II II II II II II II II
l·Je ig h t t::·d
. c '
r'.:'1dj ust eel
'C:'
Durat i on I nten s .
mi11ul:c!~~ in/hr·
Qpea.k
c fs
'vDLUMES
InflovJ
(ac--ft)
Stoi·-a.qe
(ac· .. ·ft )
~N******~~~~~**x***~•************~*~~****~~**********~****** St or a ge Ma x imum
0.5G 5 0.565 1 7 6.090 41 .05 141.30 : 3 .309 0.616
*~**4*************~*********************************************************
-5C..~5 0 5C5 20 ·~ 400 41 (>5 l .-,r.:-2'3 ~. 4 ~5 :L 0 4 :23 ) . . .._j . . ,::...J . ,J . .
t). 5f,5 0 5G5 8C> 4 4 00 4 ·1 05 1 02 . 0 '3 ()peak " Q.:::1 1 1 i:11...,.1 . . L .
SUBWATERSHED B
r ··c 1l I U ·····.::~ '/E:i-!"; . .i. o n: '.::; .. :·:···. U .·I ·!~
E XEC UTED : 03 -·~1 -l ?95 2 0 :0 1:3 7
i=· a c.,1c 1
P e t; u l' ri Fr· f? q : 1 (H) ye ,:.:\ r · s
" i:::·uu 1 T 1·.i 1.:] OF ~-J{\Tl ~Y'.~!l ·I E:D B ·~·
" UJ Ll._F:13F •:3 T f:'d ! r:J l •I -)f
·l'
y..
-?!f.·
.1 :
I n f l 0 1 .~ H y d r · ·~:ip1 · <·'• pl·1: cs r:· 1 OO B • H Y['
F: <:~ I; i. n ~:1 T ,;1 b 1. r 1 f :i 1. r::? : i::· f::~ F' F' CJ -· !?. • F' l"I D
---··· -·-I N I T .T p,1__ CUl\ln J TI rn ,1 '.:~-· ·
E J r:;:··/ ,:::1 t; :i. •::·r-, --· :,~7 '.:i . :::;7 f t
O ut flu •,; 0 . (:10 r:: .,. <:'»
(1 • ()(» i:'\C ·-··f t;
(3 I 'v'F.::l ·I F'UN D n n 1· ti
:E LEVAT ION : OU 'TFL OW
(f t )
;:;T tJF:ACi E
r:,;:ir::·····ft )
--·--------·········--·------·· ---· ... ····· :
.·-, -:r ,-.. ,...~ ··-:· . .:.:.. / ·--~-· ...... ::.• ,.
2 7 .::J. 00
::7C . 00
2 77. ('0
:::::?Fl . (l i)
()" (l
J.. 0
14 .U
::n . o
0. ()<)(_!:
0 .. 00 1 :
o . cno :
<). l 50 :
().'..3 1 0 :
(> .. ~-~:=~(> :
·)(.·
* ·lo'·
INTERMEDIATE POUTING
CDt1F'UT?-1T .I. CJ~,1~:;
:~:~-:J /t
(c fs)
+ (>
( c "f s)
--------:-------------:
0 .0
l . '.:i
4'.:). 5
:2 1 7 .8
450.0
7 E/3. 4
0.0
::: • (l
44.6
:::31. 8
47 2 .0
p :j 7 . 4
POND -2 Ve rsio n: 5.20 S/N:
EX ECUTED: 0 3 -3 1 -1996 20:01:3 7
P o nd File : CSPR0 -8 .PND
Inf low H y d r og r-a ph: CSP100B .H YD
Ju tflow Hydrograph: CSP10080.HYD
F'aqe 2
Petut·n Fre q: 100 years
lNFLOW HYDROGRAPH ROU TI NG CO MPUTATION S
TIME
(hl'~;)
0 . 000
0. 01 7
0 . r)33
0 . 050
c). OE7
0 . oc.i ::i
0. 100
0. 1 1 7
o. 1:::3
~) .. 1.5 0
o . 1E,7
o. 1 !3'.:.~
0. 200
0. 2 :1. 7 I
0 . . ·-.... "'' ..::,..;:_,..;,
o. :~~:iO
o. ~257
0. 2B3
o . 300
0 . 3 1.7
0 . .....,"::',.,
,__, \.J....,
o . 35()
o. :.-157
o. '".)t;:)r' .._}\_.,_.
0. 400
I NF"L.O\.J :
(c f s )
0. 00 I
I
4 . 5 4 I
I
'3. 0 7 I
I
J.:".:L IS l I
I
18 . 1 <::-._} I
I
:22. G!3 I
I
. -_.-7 .. :_/. ~"2 2
'.3 1 . 75
3 1:: •• 2 '3
40 . 83
4'.:). ,.._,,
\-'I
'l5 . r:,-,
'-'I
45. r ;)j I
'--'' I
45. r::i7 I
'-'' I
45. 37 I
I
40. g r i ,::, I
I
3S. 2'3 I
' 31 75 I . I
•"'"'.•'7 :22 I
.4.../" I
2:2. E.a I
I
:t.8. 1 5 I
I
1 3. Gl I
I
'3. 07 I
I
4. 54 I
I
0. (l(l I
I
I1+I 2 25/t .... 0
(o: f!:;)
2S/t + 0 : OUTFL OW ELEVA TION:
(cf s ) (c f s) (ft)
:---------:------------:-----------:------------------:
··-···-··--·· --0. 0 o.
4 . c::-,.., o:::· 4. .._} ,::, . ._}
:1.3. E, 1 ·~-. ...J. :7 17.
~"22 . 7 3£ .. E· 3 8.
3 1 . 8 53 . 0 E08.
40. 8 ':13. E, 103.
4 ·3 . '3 127. 8 143.
5'3 . 0 1 5 5 . 0 185.
t.=..a. 1 205. 0 .-,,. .... ,,
..::.~ ... -.,.
77. 1 250. ~7 2!:32 .
~3G .. .·-. 301 '3 33 5. ..:;,
·::io. 7 354. 0 3'32.
·::i o . 7 40 2. 5 444.
'30. 7 448. s::..-
._} 4·:;i3.
'30. "7 4'32 . 7 53'3 . ,
85. -53 1 0 57 E-3. :L .
77. 1 55'3. 1 508.
58. 1 577. 4 527.
5 '3. (l ~i8 5 .. ri .::. 535.
49. '3 585. ·-:. 535. ..:..
40. 8 5T7. 'J ._, 5--..-7 .4...1.
31 . 8 '.:iGO . 0 50·:1.
2 :~~" 7 534. E, 582.
13. E. 50 1 . 4 54t1.
.::j., r.:-4 50. "7 505. ,J I
0 I
I
5 I
I
1 I
I
4 I
I
r ;:. I ._, I
Ei I
I
r.:-I ,_) I
7 I
I
0 I
I
1 I
I
•::'J I _, I -, I
I I
7 I
I
3 I
I
2 I
I
'3 I
I
1 I
I
1 I
I
4 I
I
2 I
I
0 I
I
1 I
I
7 I
I
.-, I ..::. I
·::i I
I
o.
0.
(>.
o.
·-:· .. :...
...-...J.
7 I .
10.
14.
15.
17.
1 9.
2 1 .
2:2 .
··-:·':'t
...:... \-I •
.-,r-,
.,::. ... J.
24 .
~"24 .
.-·.c:-
..:~...J •
25 ..
24.
24.
24.
.-,,,
L ~ •
·-:··-:· . .:. . ..:... .
00
c;:-ri .. ... ."J..::i
58
':33
55
1 2
87
87
04
58
50
35
0':1
3'3
24
'37
5 1
85
03
03
85
r.:;-r-, ._}._::,
04
40
53
:273.37
27 4.05
27 4.35
27 4.85
275 . 13
275.32
275.53
275 .75
275.0 1
275.21
275.44
275.57
2 75. 8'3
277.07
27 7.2 1
27 7.33
277 .42
277.48
277.51
2T7. 50
2 77.48
277 .34
27 7.23
27 7.10
POND -2 Versi on: 5.20 S/N: F'age 3
EXEC UTED: 03-31 -1 99 6 20:01:37 F'.et u1 r n F-·r E·q: 100 year ~-3
SUMMARY OF ROUTING COMPUTATIONS ******************
F'oncl F.ile :
Inflow Hy drograph:
Outflow Hydrogr ap h:
Cf.JF'P O--El • PND
CSP100B .HYD
CSP100BO.H YD
Starting Pond W.S. Elevation -273.3 7 ft
***** Summary of P ea k Outflow an d Peak Elevation *****
F'eak Inf 1 c••,J ..... 45. 37 c fs
F'eak Out flow ·-.-·.i::-
~: ...J. (>3 c fs
Peak Elevat i Ofl ···~ 27 7. 51 ft
***** Summ ar y of Appro x imat e Peak Storage *****
Initi a l Storage -
i:::·eak St or age F ·r' om St or· m -·
Total Storage in Pond =
0. 00 ac ·-ft
0.42 ac-ft
0.42 a c-ft
(12
. (>::~
. 05
" 07
o·::i
. 1
:L .-.
" ..::.
. 1 4
'·
t::" ~i
. 1 7
. :I. ·:;1
.-. . .. ::.
-· ·-, . . .. ::. .. ::.
" 24
. 25
.-.-, . . .::.. I
. 2'3
. '.31
•'':'•-:1 . ,..).,;..
. '.34
35
T
(
:1:
l'
W O ..
I
POND -2 Ve r sio n: 5.2 0 S/N:
P ond Fi.lE'!!:
Inflow Hydrograph:
Ou tflow Hy d rogra ph:
F·ea k In fl ()l<1J --
F'r.·?t::\k Out fl Ct W ·-··
F'e;:1k El e-...1a t i C•n -·-
CSP l?0 ··-8 .. Pl'-1D
CS F'100B .H YD
U"JP:LOO BO.H YD
,::~5. r:,7 c f s '-',
.-,c:-
k.J. C>3 c f c·· _,
.-.. ,-, 5:l ft ..:... I I "
Page 4
Return F r eq: 1 00 years
EXEC UTE D: 03 -31 -1996
:2 0: 01: 37
0" 0 5. 0 :l ()" 0
FlovJ (cfs)
15.0 20.0 25.0 30 .0 35.0 40.0 45 .0 50.0 55 .0
.------:-----:------:-----:-----:-----:-----:-----:-----:-----:-----:-
y: *
:·;: •*•
;1~ ·X·
... -)(·
_,, ·II·
>·~ -r.-
_,, ·lE-
:·.-~ ·lE ·
·'' * :.,; *
-" ·K·
; .. ~ ·IE·
:·1: -!(·
.. , ·J!'·
:1: * ... .y,,
;1: -lE·
·'' •*
:1~ *
·''
-!(-
I :1: * I
>·: ·lE-
:·,.: *
:·1: ·II·
_,, -lE ·
:1: *
:1: *
:1: ·li-
... *
·'' *
:1: *
:1: ·)!'·
>'~ "*·
>·: ·ll·
:1;·*
·li-:1~
-*· :1:
*• :1~
"*· .. ,
·lE-;1:
* .. ,
·*-y~
ME
h l'" 1:5 )
F :L l e : U3P 1 OOBO " HYD Clma~,; --::~5 . (l I -· fs -
F i 1 e : CS P 1 OOB . HYD Qma:.-: ···-45 .. 4 1: fs
POND-2 VeYsio n : 5.20 S /N:
EXECUTED: 03-31-1996 2 0 :0 1 :37 F:et U Y n F Y e q: 5 0 y eaY s
****************************
·*-
* ROUTING OF WAT ERS HED B *
* COLLEGE S TAT I ON *
·IE-
•*-
·lE-
-M·
****************************
I nf l o w Hy dr o g r aph : CS P50B .H YD
Rati ng T a bl e f il e: CS PR0 -8 .PND
----INITI AL CO NDI TI ONS ----
El eva t i o n --·-:r-7 ":) r;r7 ft ..:.. I ....,. -...JI
Ou t fl ()•+) -·-o . 0 0 I -f s -
St or "'1.ge ···-o . 0 0 ac -·f t
13 I VEN F'OND DA TA
I NTERMEDI ATE ROUTING
COMF'UTA T ION S
:ELE VAT I ON : OUTFLOW :
(ft ) C:c f ~:;)
S T OPA GE
(<.;i i: --ft )
:---------:---------:----------
2 7 3 . 3 7 0 . 0 0. 0 0 0
27 4. 00 o . i= o . (l(l 1 ..J
27 5 . 00 :l . 0 o. 030
276 . 00 :l 4 . 0 o. 150
277 . 00 :2:2 . 0 0. 3 1 0
27D . 0 0 2fl . !) 0 . 5 3(> I
I
2 S/t
(c f s )
2 S/t + (l
(i: f s)
------------:-------------
o .o
1. 5
4 3 .6
217 .8
450 .0
7 5 '3 . 4
0 .0
2 . (l
4 4 .E,
23 1. 8
47 2 .0
7'"37. 4
Ti lllE' inc l" e m en t ( t ) == 0 . 0 1 7 h r s.
POND -2 Version: 5.20 S /N:
EXECUTED: 03 -31 -1996 20 :0 1:37
Pon d File:
Tnf low Hydro gr aph:
.Jutf lo w Hydr ograph :
INFLOW HYDROG RAPH
TIME
( hl' s )
I l\IFL..0\.-J
(c: fs)
CSPPO -·B . PND
CS F'50B . HYD
U'3P5080 . HYO
I1+I2
(c: f s )
P <::1 ge 2
Return Fre q: 50 jear s
ROUTING COMP UTA T IONS
23/t ... 0
(c f s)
2S/t + 0
(cf s )
OUTFLOW !ELEVATION!
(c:fs) (ft)
:---------:------------:-----------:---------:---------:
0.0 0 0
0.017
(> .. (>~;3
0.050
0.01;7
0.083
o. 100
0. l 1 7
o. :1.33
o. 150
0 . 1 G7
0. 18:3
0.200
0.217
(>. 2 33
0.250 I
0 .2G 7
0 .283
0 .300
0.317
(> .. 333
o. 3~i0
0.3 67
0 .383
o.oo:
4. 14:
8 .28!
1 2.42 :
1 G .5G :
:2'.C >. 7C >:
24.8 3!
2f:3 . ·:r1:
'.:J~:;.11 :
~37" 25:
41 . 3':3:
4l. 3 '3 :
41. 3•3:
41. 3 '3 :
"1 .. 7 .-,r= I
._::i I •.£..._)I
33. l l :
28. ·37 :
24.83!
20.70:
16.55 :
1 2. 4:2:
8.28:
4. 1 4:
o.oo:
·---·--····-·--
4. 1
12 . • ::J.
2 0. 7
2 '3. 0
'7)-7 r, ...... , .. ,;:,
45. i=
-.}
53 . 8
s·-· L • :L
70. 4
7 8 . G
s ·-.. L. 8
!32. 8
8::2. 8
78. 5
70. 4
52. 1
c;-,.., 8 w..;,, •
45 . 5
37 . ':.> '-'
2'3. 0
20. 7
12. 4
4. J.
o. 0 o.
':> 1 4 . '-'.
1 4. ~? 15.
':'':' -....J \.+J II 1 34.
r.:-·7 -.} , . 7 G2.
85. '3 '34.
1 1 7. 4 131 .
151 . 5 1 7 1 .
1 88. 2 2 1 3.
228. 8 258.
274. 4 307.
320. 8 357 .
354. 1 403.
404. s 445.
438. 8 483.
45 3. 8 5(l 'j .
4 7 '3. '3 c::--·-,r.:-
...JL ... J.
48 7 . 4 C:--'i 11 ...J ...:J ... j.
48 5. 7 533.
4 78 . 1 524.
4 S 1 . 7 507.
4 38. 1 482 .
4 07 . ·:3 450.
~372 . 0 4 12 .
0 I o. 00 273. 37 I
1 I 0. c:' r~ 274. 05 I .._}~
5 I o . 65 274. 3~? I
·;:,1 I 0. 8'3 274 . 77 I
1 I 2 . ·-:··-:· 275. 0'3 I ...:......:...
'3 I 4. 50 ·-:17c:' 27 I ...:... I ._; •
5 I -, 03 275 . 46 I , .
·-:· I '3 . 7·~~ 275 . 68 ..:.. I
7 I 12. 74 .-,-,s= '30 , I L1 ...J.
c:-I 14. 8'3 276 . 1 1 -.} I
4 I 16. c::---, 276 . 31 I .. JL
1 I 18. 1 7 27S. c.-.-,
I -.J.L
s I 1 '3. ~72 27S. 7 ·-· I ..::.
•:=J I 2 1 lS 275 . '30 I .
·-:r I ~"22. ::21 .-, . ...,..., 03 .:... I ..:.. , , .
·-:r I 22 . 68 277. 1 1 ..:.. I
'3 I 22. '3'3 277. 1 7 I
7 I 23 . 14 27 7. 1':1 I
0 I .·-,,, :L 2 277. 1 ':3 I LW .
0 I .-.. -. '36 277. 16 I ...::....::...
0 I :-::2 . 65 :27 7 . 1 1 I
4 I .-,.-·, 1 ':1 2Tl. 03 I LL.
c: I 21 28 2 7S. '31 -.} I .
1 I 20. 00 275. 75 I
POND-2 \/er·:-:-ion: 5. ::20 S/N:
EXEC UTED: 03 -31 -1935 20 :0 1:37
Paqe 3
Retu r n Freq: 50 years
****************** S UMMARY OF ROUTIN G COMPUTATIONS ******************
Pond File: CSPP 0 -8 .PND
Inf lovJ Hyd1"og -r·;:1.ph:
Outflow Hy drog raph:
CSP S OB .HYD
CSP5 0BO .HYD
Starting Pond W.S . Elevation -273. :37 ft
***** Summary of Peak Ou tf l ow an d Peak Elevation *****
Peak In fl C•1N --41 . :3'3 I ·-fs -
Pea k Out fl Ct'.N ··~·
.-·,r-, 14 c f c-. .::...:;,. -~
Pea k El. evat ion ·--2T7. 1 '3 ft
***** Sum mary of Approx im a t e Pea k Stor a ge *****
Irii t i al !:.1to1"<:t.~~e --
Peak Storage Fr o m Stor m =
T ota l Storag e in Po nd
0. 00 a·:-ft
O. 35 ac -·ft
0. 35 ac--·ft
. ():::
. ()~:~:
. 05
. 07
. o ·:~
. :I.
. :l ~~~
. l 4
5
1 7
1 ·3
. :2
. :2 2
. 2 4
. 2 6
. 2 7
. :2 ·=~
. 3 l
"='·-:· . \_.!...; ••
. 3·-l
. 36
~!~
·Jo!-
·-
--·
T I
PO ND-2 Vers i o n : 5.20 S/N: F'a~J e 4
Por-1 d r:-i 1 ('2:
I nfl ow Hy d r o gr aph:
Outfl ow l ·l ydi'OQi -a p h:
F'i:?a k In fl 1;)t,J .....
F'r-;!a k Ou t fl 0 1,.,' ··-
F'c;:a k E l E~vat i C•ri ··-
CSF'R 0 ···-8 • F'ND
C:S F'5 0B .H YD
C S f-'50 B Cl • H YD
41 . 3'3 i: f ~;
·-:i r.) 14 i: fs ..:.....__•"'
:2 7 7. l '3 f t
Re tu rn Fre q : 50 y e ars
E XE CUTED: 03 -31 -1996
20 :0 1:37
o . 0 4 .0 8.0 :!.~~:. 0
F l o •.-1 C:i:f s )
16 .0 20 .0 24.0 28.0 3 2.0 3 6 .0 4 0 .0 4 4.0
________ ,,_ .... : ····-·-------· : ... ···-··········--: --·---··-.. ·-·· : -··-··--·-.. ·-: --·-··----·-: ---···-----; -··----: ··-·-·----: -----·----l ---·-··-·--: -
~I~ ·K
;1~ ·)(-
_,, -~~
>·~ ·*"
:·1~ ~-
;1~ ·)"'.-
-" •*•
>~ ·ll'c
:·,-~ ·l!·
-"
·)(-
-" *
~ .. ~ •*
;1~ "" ·iE· ..,
'*' .··•
* ...
:1. •*-
:·,·~ '*
:"/~ *
* ..,
;1~ *
· .. • -" *
;l~ *
:·1~ *
)'~ -l!·
,,.
·'' ·K-
;1~ -l!·
y~ '*'
;1~ -IE·
t '. * I ...
?t~ ·M·
~< *
·K·
·IE· ,,.
·''
I -IE· ;1~ I
•* ..,
I * I "'
·!(-...
'*' ...
* ;1~
;'E· y~
·ltf· ~I~
t1 E
( h '( r:; )
F i. 1 e : C S F'5 0 -<D 1-lYD U ma ~,; ·-.~·, r\ 1 c f s . ...:,'_~ .
F i 1 e : C'.3 F'50B . HYD Q m a ~,; --· 4 1 . 4 I -· fs -
POND -2 Ver-s io n: 5.20 S/N: Page 1
E XECUTED: 03 -31 -1996 20:0 1:37 l:C:et ur-n Fr-eq: 25 y ear-s
******************~*********
* ROUT IN G OF WATERSHED B *
* COLLEGE STATION *
·~·
·~
*
*•
*
* *********~******************
Infl o w Hydr-o gr-a ph: CSP25B .HY D
Ra ting T a bl e file: CSPR0 -8 .PND
--··· --· --I N I T I (.~ L UJ ND I T I ot'JS ----· ···· ····
Elev ati o n -273.37 ft
Ou t fl o~..i
S to1·age
0 . 00 r: f ~;
0 . 0 0 a o:: ···-ft
INTERMEDIATE ROUTING
COMPUTAT I Ol \IS
:ELE VATION: OUT FL OW :
( ft )
S TOR (KiE :
(a c--ft)
:---------:---------:----------
.-,-,~ ..:.:..1 ..::J .. :;;7 (l " 0 o. 000
274. 00 o. c::-J 0 . 001
2 -7 5 . 00 l . 0 o. (>3C)
275. 00 14. 0 0 . l 5 0
277. 00 :;;::2. 0 o. 310
27(-3. 00 28 . 0 o. 53(>
2S/t
(r: f s )
25./t + 0
(r:fs)
:------------:-------------:
0.0
1. 5
4 :;::. 5
2 1 7 .8
450.0
7f:/3. 4
0 .0
2 . (>
44.5
23 1.8
472.0
7"37 . 4
Time ino::r-emen t Ct) = 0.017 hr-s.
P ON D-2 Vers ion: 5.20 S/N:
EXE CUTED : 03-31 -1995 20:0 1:37
r=·on cl r--i l e :
Inflow Hy d ro g raph:
Jutflo w Hy drog r aph:
I NFLOW HYDROGR AP H
TIME
(h rs :>
I NFLOlrJ
(c f ~;;)
CS PF:Cl ····D . P ND
CS F'25B • H Y D
CSP258 0 .HYD
I 1+L2
( 1: f s )
Page 2
Return Freq: 25 years
ROUTING COMPUTATIONS
2S/t --0
( ·: f s )
23 /t + 0
C:i: f s )
OUTFLOW ELEVATION:
(c f s ) (ft:>
:---------:------------:-----------:------------------:
0.000
0 .0 1 7
(>. (>33
0 .0 50
0 . Of:..7
O.OB3
0. 100
0. 1 1 7
0 . 1:·33
0. l!'SO
o . 1 E..7
0 . l f33
0.20 0
0 .2 17
o. 2 ::::3
0.2 50
0 .2G7
0 . :~:8 3
0 .300
0 .31 7
(> .. 3 5 (>
0 .3 G7
o.oo :
3 . 7·3 :
·7 . 5t.=l:
11.3 7:
1.5. 1 5 :
1 8 . •35 :
::25 . 53 :
~.:"}() .. 32:
'.""3 4. 11 :
37. ')0 :
:37. '3 0:
37. ·:JO :
34. 1 1:
3 (). 32:
1 8 .'3 5
15. 1 6
11.37
-., S::-(~ I , ..JO
3. 7 ·:.i
0.0 0
3.8
11. 4
1 ·=1 0
:~3 4. l
41. 7
4'3. 3
5G . '3
G4.4
7 2.0
7 5.B
7 ~.:i. 8
7 2.0
f..4 . 4
5G. '3
49.3
41. 7
3 4 . 1
26.5
1'3.0
1 l. 4
3 ti f:3
o.o
2.7
12.8
30. 1
52. '3
7'3. 1
1 OB. ::_
13'3 . 8
173.5
20'3. 5
2':31 . 8
363 .2
385.5
401.3
408.0
407. ~~
3E~4. '3
354 .4
305.7
o.o:
3.8:
14. 1 :
31.8:
55.5:
8 7 .o:
120.s:
157.5:
1 '35. 7:
238.0:
2 81..5:
32 5 II 1 :
357.tS:
402 .5:
427.S:
443.4:
450.G:
44'3. 7:
441. 3:
425. '3:
403. '):
375.8:
342.o:
0.00
0.52
0. EA
0.85
1. 84
3. ·~5
f. .• 30
8.t14
11. 56
14.21
1 5 .55
1 7 . 14
18.5:2
1 '3. E/:1
20.52
21. 05
21. 2'3
21. 25
2(>. '3€-3
2 0. 4E·
1'3 . 73
18. ~30
l7.57
2 7 3.3 7
27 4.04
274. 2'3
274.70
275 .05
275 .23
275 .41
275.50
275.81
275 .03
275.21
275. 3 '3
276 .57
275.71
275.82
275 .88
275. '31
276 .'31
275 .87
275 .81
275.72
275 .50
275.45
POND-2 Ve rsi on: 5.20 S/N: F'i:l.Q•::? ~::
EXECU T ED: 03-31 -1996 20:01:37 R et u rn Freq: 25 ~ea r s
******~*********** S UMMA RY OF ROUT IN G COM P UT ATION S ******************
F'o n d F :i. J. r-:.>:
I n floi,J Hy d rogi-e<.ph :
Outflow Hyd rograph:
CSP::2 ~iB
CSP2580
.H YO
.HY D
Starting P ond W.S . Elevation -273.37 ft
***** Su mmary of Peak Out fl ow an d Pea k Ele va t io n *****
i:=·eak In f 1 Ci'oAJ -·-r':J ~7 '30 I -fs ~I . -
F'eci. k Out fl r:1 w --2 1 . 2 ':J c f ,_ :::>
r=·eak E: l evat ion --27G . '3 1 f t
*•*~*S ummar y of Appro x im ate Pea k Storag e*****
Pea k Storage Fro m Stor m -
Total Sto r a~e i n P o nd
0 . 00 ac ·-ft
0 . 30 a c--ft
0 .30 a c-f t
. 02
" o:::;
. (>5
. ')7
. o·:;·
. 1.
1 .-·. . .. ::.
. :L 4
' r::-
...J
1 -7 . I
. 1 '3
·""'.•
. ... ·1·-· . .::....::.
. 2 4
26
·-:,_, . .... I
. :2·:9
':) 1 . ~1
. r:-a ··-:· ... J .1:...
. 3 4
. 35
:·,~
'!
·-··
T I
PDND -2 Version: 5.20 S/N: F'age 4
P oncj Fi le:
Inflow Hydrog ra ph:
Outfl ow Hyd ro graph:
F'E•C:t k In fl ()'.,.) .•
Pe c:1k Dut fl C•',,,J .....
r:·eak El e v at i C•rl -··
CSF·F.:0 -8 . F'ND
CSF'25B
CSF'25BO
'.:17 . •;::H) c
21 . 2':3 c
.H YD
.HYD
fr• :;::,
f ~;
276 . ·:1 1 ft
Return Freq: 25 years
EXECUTED : 03-31 -1 996
20:01:37
o.o 4.0 8.0 L2.0
Flow C:i:f s)
16 .0 20.0 24.0 28.0 32.0 36.0 40.0 44.0
.------:---·---:-----:-----:-----:-----:-----:-----:-----:-----:-----:-
... *
:·1~ * ... ·M·
·" ·l(·
v ... .Y.:-
·'' ."°
;.< ·~·
., -l!i·
··,·.: *
:·1~ ·)".·
:·1~ 11:·
:·1~ •*-
:·1~ *
~/~ ·IE·
~'~ •*
~(~ ·*-
... *
:·;~ ·Ji!·
:·1~ *
>·~ *•
~/~ ·lE·
, .. ... •*
:·.1, *
~,.~ ·!!:
~/~ *
:'(~ •*
~/~ * ... ·!E-
,, *•
:·. ~I~ ·*
·!\·
•*-~I~
I *• ~'~ I
·*-·''
·lE· ~/~
·!le y~
·!'!-...
* :1~
* :1~
* .-.
-1!· ~/~
I * I ...
ME
(hi·· s )
F i l e : CS F'25 BD l·IYD D ma :t; -2 l r,
i: f s . . ..;,
F i 1 e : C:SP258 . HYD Oma~~ ... 37 . 9 c f c:
POND-2 Version: 5.20 S/N: F'age 1
EXECUTED: 03-31-1935 20:0 1:37 Petui'n Freq: 10 y ear s
****************************
M· POUT I NG OF lt!P1TEl?SI IE D B *
* COLLEGE S TATI ON *
****************************
Inflow Hydrograp h: CSP lOB .HY D
Rating T able file: CSPRO -B .PND
----INI TIAL CO NDITIONS ----
E l e v Ct. t i r:1n ··-
Du t f 1 o•.,,•
273.3 7 ft
0.00 cfs
0. 00 ac ---ft
I NT ERMEDIA TE ROUT ING
COMPLJT AT I Of\JS
:EL EVATI ON: OUTFLOW :
( ft ) (c f s)
273 . 37 0. 0
274. 00 o. r.::-J
275 . 00 1 . 0
2 75 . 00 1 4. 0
277 . 00 .-·, .~·. 0 ..::.. .. :.:..
278 . 00 2f:3 . 0
STORA13E :
(a c--ft:>
0. 000 I
I
o. 001 I
I
o . ()3(> I
I
o. 150 I
I
0. 3 10 I
I
0. 5 3c) I
I
2S/t 2S/t + 0
(cf s) (cf s)
:------------:-------------:
o . 0
1. 5
43 . E.,
217.8
450.0
75 ·::1. 4
o. 0
2.0
44.5
231. 8
472.0
7 '37. 4
Time in cremen t (t) = 0.017 hr s.
POND -2 Ve rsio n: 5.20 SI N:
E XEC UTED: 03-31 -1 996 20:01:37
Pond F"ile:
In flow Hydr ograph:
Jut flow Hydrog ra ph :
INFLOW HYDROGRAPH
TIME
(hr <::;)
I f\lF LOl-J
(i: fs)
C'.::lF'P0 ·--8 • PND
CSP1 0 B .HYD
CSP 10BO .HYO
1 1 +1 2
P,:\ge 2
Pet ur· n F ir eq : 1 0 years
ROUTING CCJMPUT ATION S
2S /t --0
(i: fs)
25/t + CJ
C:i: fs)
OUT FLOW :ELEVATION:
(cfs) (ft)
:---------:------------:-----------:---------:---------:
o. 000 o. 00 I ... ____ , .. ___ o. 0 o. (l I o . (l(l 27 3. 37 I I
0. 017 r;i 37 I ':.' 4 ::: .. ~. ,.., 4 I 0. 52 274. 03 ~,. I ,_,. ,;:. ~. I
o. 033 f,. 74 I 10. l 1 1 2 12 . 4 I 0 . G~2 274 . . -.r.::-
I . I .L. ._)
o . 0::50 1 0. 10 I 1 6. 8 26. 4 28. 0 I o. 81 274. 61 I I
o. 0 67 13. 47 I .... ,,. ... b 47. :::-~ 50. (l I 1 38 275. 03 I .. ::...;:, .. I .
0 .. 0 03 lG. 84 I ~30. ,.., 71 0 7 -r b I r', 2 '3 275. 1 8 I .... :• I • I ..:;, .
o . 100 20. 21 I .... , ..... 1 '37. -108 . (l I t:-41 275. 3 4 I ._"j / • .. ::.. I ....! •
o. l 17 ··-:·'-=' 58 I i:.1-3 .. 8 1 .-,i::;· G 141 0 I 7 70 275. t="·-·
....:... \.J • I ..:.. ....! • . I I • ....!£..
o . 1 '';"''J 26. '35 I 50. r: 1 55. '3 1 75. 1 I 1.0. 14 275. 70 '·-'~ I ._j I
'). l :'iO 30. 3 1 I 57 . r;i 187. -, 2 1 3. 1 I 1 ·-::· 7 1. 275. '30 I __, I I
0. H'.,7 ,. ... ,. ... 68 I CA . 0 ~::~'22 . 4 25 1 .. , I 1 4. GG 275 . 08 ...;, ..::.· . I . I I
u. 183 3(>. r 1 • I 54. 0 25 ·l . 7 :286 . 4 I 15. 82 27 5 . . -.r-i .. :d. I I .4.-~
o . ::,~:oo ~~~ f; • '3~:5 I 5·7. .-, :2 78 • b 312 . 0 I 1 5. 57 276 . 33 I ..:;, I
o. 2 1 7 •
0"11"'• 58 I 50 . 5 2·:::i4 . 7 32 '3 . .·-, I 1 7. 24 275. 41 . .::. ... ~) . I ..:.. I
o . ·-:·':'I~ 20. 21 I :t . .., 8 ~j (>3. 4 3 38. r::-I 1 7 . 55 276 . 44 .. :....._1,_J I ' ..::i • ....! I
o. 250 1 f,. 84 I ':'-, 1 3(>5n 2 340. 4 I 17. 5·-· 275. 45 I -~I . I ..:..
o. 2C7 1 .-:;. 47 I 30. 3 300. 5 -. , ..... c:.-r::-I 1 7. 45 275. 43 ...... J • I ~,:J....J • ....! I
o. ::::8:3 :l 0 . 10 I .-...... , b ~:~·30 . 0 32 4. ·-:· I 1 ' Oc3 27 5. 38 I ...:.:. ._j . ..:.. I I •
0 . '.30 0 6. 7.::t,. I 1 E.,. 8 2~7 3. 8 3C>b. 8 I 1 5. ~30 27 5. 31 ' I
o. 3 :1.7 r, 3 7 I 10. :L 252 . r.;;-283. 'J I 1 5. 74 275. 22 ,::i. ' ..J I
0. ,,,......,, 0. 00 I ·":l 4 225. -. ·-,c:-i:::-~3 I 14. 80 275 . 1 (l ..::.·~...:· I ...,. ..:.. .. ~.J..J • I
POND-2 Vers io n: 5.20 SIN: Pagr=:i 3
EXECUTED: 03-31-1995 20:01:37 Pet u rn F-r·e q: 10 yea1's
****************** SUMMARY OF ROUTING COM PUTATION S «*****************
Pond r--ile:
In f low l-ly d ·r-ogr· aph:
Outfl ow Hydro g rap h:
CS PPO .,·B . PND
CSPlOB .HYD
CSP 10BO .H YD
S t arting Po nd W.S. Ele v a tion -
i=·ea k I nf 1 0 1,.,1
273.37 ft
-.. ':'r.,
~.1 .. -1 .
Peak Out f 1 0 1.v = 17.
Peak Ele va t i •:•n = 275.
GB c f s
52 c f s
45 ft
***** Su mm ary of Appr ox i mate Peak Storage *****
Initial Storage -
Pe ak Storage Fro m Storm -
Total Storage in Po nd
0. 00 i01C -ft
0. 22 ac ·--ft
0 . 22 ac --·ft
" (':~~
(>:-3
. 05
. 07
. O'J
. l
. 12
. l •1
1 5
1 -, . ..
. l :;
··:i .
. :22
. ::.~4
. 25
. 2 .. l
.. 2 ·:'.j
. 31
. ,-.......
.. J .. ..:.
T
(
:·1~
'*'
I
P OND -2 VeYs i on: 5.20 SI N: P a g e 4
Pond Fi le :
I n flo w Hydrogra p h :
Clu t fl o•,; l ·l ydi ... ogr21ph:
P eak In f 1 0 '.4 ···-
F·ea l :: D u t fJ. i:11...._.1 .....
F'eak El evat i on M .. •
CS F'F.:CJ·-·B • PND
C S F' 1 OD • H Y D
CSF'1 0BO .HYD
':'I ':'1 .....> ..... >. GD c f s
1 7 . (.;2 I ... f c:: ...
27() . 4 5 f t
F'.e tu r n FY-eq : 1 0 y ecix s
EXEC UTED: 03 -31 -1 936
20 :01:37
o . 0 4 . 0 f:3. (l :1.2. 0
F l ow (cfs)
:1.6.0 20.0 24.0 28 .0 32 .0 3 6.0 40.0 4 4 .0
------:-----:-----:-----:-----:-----:-----:-----:-----:-----:-----:-
..... : .:, .
:·.··, ·~~
.. , -lf.·
:·,.~ ·!<:·
.... -~<-
:;~ *
x *'
>-.'. ·)!'
:·1~ * •*-"'
.. ,.~ ~~
;1~ '*'
~I~ ~
~I~ -~·
'.'!~ -)\·
·'• ·*-
;1~ ·ll·
:·1~ '*'
h *
"' ~·
;1~ ·ll·
>·~ ·i'!-
·'' '*
~I~ -!<·
"' *·
... ·i':·
:·1~ -!E·
·~·
* "'
I ·. .;:. :·1~ I
·!!· 7;
·l<:-:.,~
·M-;1~
-¥.· ~I~
-:~· >~
.y, :·1~
* ~(~
'* ?:~
ME
h r s )
F i l e : CS F' 1 OD O . HYD Qma ~; ..... 1 7 . 6 c fs
F i 1 e : CS F' 1 OD . l·-I YD Qma :1; --''::\':l 7 c fs ~,,_, .
POND-2 Version: 5.20 S/N: F'ag e 1
EXECU TED: 03-3 1 -1996 2 0:01:3 7 Return Freq : 5 ye ar s
****************************
* * ROUTING OF WATE RSH ED B *
* COLLEGE S T ATION *
·*-
•*-
****************************
Inflow Hydro graph: CSP58 .H Y D
F:at :i. n~~ T e:1b l e f :i. J. e: CS PF.:0 -···8 • F·~,ID
----INITI AL CONDITIONS ----
El evat ion -273.37 ft
Outflow -0.0 0 cfs
St ()l'° t::\g e 0. 00 ac --ft
13 IVEN F'OND DAT{i
INTERMED IAT E RO UTING
CO MPU TATIONS
:ELEVATION: OUTFLOW l
(ft) (1.:f ~s )
!'.;TOPAGE :
(a c --·ft)
:---------:-------------------
274.00
275 .00
27 6.00
277 .00
2 7 8. (H)
0.0
0.5
1. 0
14.0
22 .0
28.0
o.ooo :
0. 001:
0 .030:
o. 1 50 :
0.310:
c). 53(>:
£'.S /t
( i:.: f s)
0 .0
1. ~)
43.6
2 1 7.8
450.0
76'3. 4
Time incr-ement (t) = 0 .017 h rs .
2S /t + 0
(c f s)
o.o
2 .0
44 .5
231 .8
472.0
7'37 . 4
P D JD -2 Ver s io n: 5 .20 S IN:
E XECUTED: 03 -31 -199 6 2 0:01:37
F'o:..o n d F i l E•:
Inf lo w Hy d rog raph :
Ju t fl o w Hy d r ograph:
IN FLOW HYDRO GRAPH
TIME
O w s )
INFLm·J
(o:f ~:.)
U3F'F:O -B • F'ND
CSP5B
CSP5BO
.H YD
.H YD
11 +!2
( ·= f s )
Pag~? 2
F::eturn ~-1,eq: 5 y ears
F::OU TI NG COMPUTA TIONS
28/t ..... 0
(o: f:;)
2Ei/t + 0
(o: fs)
OUTF LOW :ELEVAT ION:
( ·= f s) (f t)
--------:-------------------:------------:--------------------:---------:
o. 000 o . 0 0 I
I ···-···-... _ ·-.. .,,_ 0. 0 (J. 0 o. 00 273 . 37
0 . 0 1 7 ~, 12 I ,, 1 2. 1 ':> 1 0. 51 274 . 03 ,.:,,. I ..;:,. ...., .
o. (>33 f;, • .·-.1:= I '3 . 4 1 0 . 2 1 1 "" 0. 5 1 :~74 . 22 ...::.,_1 I . . ..J
o. 050 '3 . '':'-7 I 15. f'.) 24. ,, .-,i:;:-'3 o. 78 274. 55 __,, I .:i ,..:_ ...J .
o . 057 12 . 5 (> I 21 '3 43. '3 4E. . . -. 1 1 1 275. 01 I . .. ::. .
0 . 083 1=i. E ··'.· I 28. 1 GS. 2 72. 1 ·-:· ·:H .-,-,c::-15 _J..;_ I ..:... .&:..1 ~.
o. 100 18. 75 I 3 ,~ .. 4 '30. 8 100. E. I 4. 8'3 275. 30 I I
o. 1 1 7 2 1 El7 I 40 . 5 1 1 7 . • ::1. 131 4 I 7. 03 275 . 45 . I . I
o. 1 :3 3 ~~~5. 0 0 I 4G. '3 145. G 1G4. 2 I '3. 31 275. 54 I I
0. 150 28. 12 I r.::"',_l 1 175. ,, 1 '3 8. 7 I 1 1 7 1 2-15. Ci ·-,
I ...J..:J . ..:;, I . o..::.
0. 15 7 31 :~~~.5 I '.3 '3. ~l 205. c:· 234. -~ I 14 . 1 (l 275. 01 . I ...J / I
o . 183 28. 12 I 5'3. 4 .-·,r-.r.::--5 255 . '3 I 1 5. 14 275 . 14 I ...;:...;:,w .. I
o. 200 .-.c:-00 I r.:"'I 1 255. '3 288. "7 I 15. '30 :276 . 24 L ·..J • I .....J..:J . , I
o. 217 2:1. 8 7 I 45. '3 271 0 3(>3. 8 I 1 5. 40 275. 3(> . I . I
0. .-,,.,,., 18. -, t ':" I 40. 5 278. ':> 31 1 G I 15. GG 275 . ,,.,
...::.~")~· I ...J I ...., . I ..:J~
0. 25(> 15. 5 2 I 3.~1. It 4 27'3. ~. 3 1 2. 7 I 15. 0/J 276 . 34 I ..;:, I
0. 267 1 2. 50 I 2t.L 1 274. 4 307. 4 I lG. t::·-1 276 . 3 1 I I ·.JL
0. 283 '3. ':'•"7 I :21 '3 253. ·::i 2'35 . -I 1 6. 15 276 . 27 ....,, I . ..::. I
o. 300 5. .-,r. .. ~ I 1 ·=-b 24!:1 . 4 27 '3. 5 I 15 . 5 '3 275 . 20 .• ~...J I ...J. I
o. 317 ,, 12 I '3. 4 228 . 0 257. 7 I 1 4. 87 275 . 1 1 .;:i. I I
o. ,...,·11-t 0. 00 I ':> 1 2(>3. 2 23 1 l I 1 3. '35 275 . 00 ~..:J~::J I __, . . I
POND -2 Version: 5.20 S/N:
E XECU TED: 03 -3 1 -1 996 2 0:01 :37
Page 3
Retu rn Freq: 5 years
**~****~~~******** S UMMARY OF ROUTING COMPUTATIO NS ******************
Pond File: CSPR O-B .PND
I11flo•,J Hych·o g r·;;.<.ph: C:S PSB
Outf l o w Hy drograph: CSP5BO
.HYD
.HYD
St al' ting F'ond ~,J. S. Eleva.ti on -·· 273 ,, 37 ft
***** Su mm ary of P ea k Outf l ow an d P ea k E l evation *****
Peak In fl 1:1 '-h' --31 ·""o I::
I -f<s . ..::.J -
Peak Out fl i:1w -15 . 5'3 c fs
Pe21 k El evat ion -· ~"27G. 34 ft
***** Sum mary of Approximate Peak Storaqe *****
Ini tia l S t orage -0.00 a c -f t
Peak S t o rage From Sto rm -0. 20 ac ·····ft
Total Storage in P o nd 0 . 20 ac -··· ft
( -) ( --. )
,-~ ·-:. . ·····-
. (> ~:-i
. 1)~.5
. 1)7
. ~)·::1
-:l
1 --:.
.I~
I ·l
.L r.:.-~I
1 7
. .L ·::1
. ~"2
··:··-;. . ... :_ .. :....
. 24
. 2(;
. 27
. ::;::·:;1
•:; 1 . ,,
r,.-;. . _,.._
y
F'i::•ncl F i l E~:
Jn fl O~·} HycJ ·( 0 '=1 r ,;:\p h:
Out fl o•.-J Hyd i·-1.-·~F .~\Ph:
F'r2a f::
Pu ,:1.k
C3F'F:'.0-B • F'ND
cr.:;r·sB
c~;i:-·sBu
• l ·IYD
.H VD
3 1 " ::25 c f ~;
1 r:: ... s ·::i i::: f ~:;
276. 34 ft
p D.C_l f:? 4
~; YE<O\l" s
EXECUTED: 03 -3 1 -1996
2 0:0 1:37
F 1 0 1 .... 1 ( c fr:;)
o .. 0 4.0 D.O l :::: . 0 16.0 20.0 2 4.0 28 .0 32.0 36.0 40 .0 44.0
-·-I
' -~:-
I -~-I ..•
:·1.:
... ·'·.
"' ....
"' •.. . '\
/~
I
I
..... I
I
·~
T IME
F .i. l E2 ~
File:
··,.:
o~
·~~
·~=
-:~
·'
:·,.~
·l<'c
~·
·Y.-
CSF'5BO
CSF'5D
i"
~-<
.'•
~-
~l·
;1~
:·1~
•*
• I IVD
.H YD
... : -··--·-··-· ---
·!!
·~'·
:1~
·-,.~
*
·)\
·r'
><
...
·'•
:·1~
...
>·~
>"~
·"
_,,
*' h
-~· :·1.:
·*-:·1~
;1.:
:-.. ~ •.. ...
•.. ...
;r~
...
;1~
~I~
Dm ~:i >~ ·-
Qrna ;.·: ·--
.;,;.
1l ·
·*-
·I!·
: -·-..... ··-· --···-: --·· --· -·---· : -----· -·--· .. -. : -·· -··· ..... --· -·-: --· ..... --· ..... ·-· : -. ---·----·· --
·~
{\·
-~~-
-~·
·lf:
ll·
1G .7 c:fs
:H. ~:; •: f s
·*'
·!f:-
-ll·
·l':·
·lt
·)!;·
11·
-~-
SUBWATERSHED C
POND-2 Vers ion: 5.20 S/N:
EX ECUTED : 05-09 -1996 18:06:44
Page 1
Return F req: 100 years
*******************************
* * * ROUTING OF SUBWATERSHED C *
* COLLEGE STATION *
*
*
*
* *
* *******************************
Infl o w Hyd rog raph: CSP100C .HYO
Rat i ng Table fil e: CSPRO-C .PND
----INITIA L CONDITIONS----
E l eva t ion = 27 6.00 ft
Outflow = 0.00 cfs
Storage = 0.00 ac-ft
GIVEN POND DATA
INTERMEDIATE ROUTING
COMPUTATIONS
:ELEVATION: OUTFLOW :
(ft) (cfs)
S TORAGE :
(ac-ft)
:---------:---------:----------:
276 .00 0.0 o. ooo:
279.00 26.0 0.030:
280 .00 37.0 0. 300:
28 1 . 00 45.0 0.960:
2 8/t
(cfs)
28/t + 0
(cfs)
------------:-------------
0.0
43.6
435.5
1393.6
o.o
69.6
472.5
1438.6
Time increment Ct) = 0.017 hrs.
POND -2 Version: 5.20 S/N:
EXECUTED: 05-0 9-1996 18:06:44
Pond File: CSPRO -C .PND
Inflow Hydrograph: CSPlOOC .HYD
Outflow Hydrograph: CSP100CO.HYD
Page 2
Return Freq: 100 years
INFLOW HYDROGRAPH ROUTING COMPUTAT I ONS
TIME
(hr s ) :
INFLOW :
(cf s)
:--------:---------:
0.000 o.oo:
0.017 8. 14:
0.033 16.28:
0.050 24. 42
0.067 I'""\·-· ..::i..::... 56
0.083 40.70
o. 100 48.83
o. 117 56. '37
o. 1 '?'? ....,...., 65. 1 1
0. 150 73. 25
o. 167 81 • 3'3
o. 183 81. 3'3
0.200 81. 3 '3:
0.217 81. 3'3 :
(>. 233 81. 3'3:
0.250 73.25:
0.267 65. 1 1 I
I
0.283 56.97:
0.300 48. gr:>• ,_,I
0.317 40. 70:
(>. 333 3~"2. 56 :
0.350 24.42:
0.367 1s.2s :
0.383 8. 14:
o. 400 o. 00 :
Il+I2
(c fs)
2 8/t -0
(cfs)
28/t + 0 : OUTFLOW l ELEVATIONl
(c fs) (cf s) (ft)
:---------:-----------------------:---------:---------:
---·---0.0 o.o: 0.00 276.00
8. 1 ~"2. 1 8. 1 I 3.04 276 .35 I
2 4.4 6.7 25.5: '3. '30 277 . 14
40.7 12. 0 47. 4: 17.71 278 .04
57.0 17.4 68.9: 25.77 278 . •37
7--:0 '? ..., . ..., 37.5 '30 . 7: 26.58 27'3 . 05
8'3. 5 71 • '3 I 127.o: 27.57 279. 14
105.8 11 '3 . 8 177.7 28. '35 27 '3 . 27
1 ~"2~2 . 1 180.5 241 . '3 30.70 27'3 . 43
138.4 253.2 318.8 32.80 279 .62
154.6 337.4 407. '3 35.23 27'3. 84
162. 8 425. 7 500 .2 37.23 280.03
162.8 512.6 588.5 37. '36 280 . 12
162.8 5'38. 0 675 . ,..., 38.68 280 .21 .:;,
162.8 682.0 750.8 3 '3. 3'3 280 .30
154.6 756.6 836. 6 40.02 280 .38
138.4 814. 0 I 8'35. 0 40.50 280.44
1 ·-··-· L L. 1 854. 4 '336. 0 40.84 280 .48
105.8 I 878. 1 '360. 2 41 . 04 280 .50
8'3. 5 885. 4 '367. 6 41. 10 280.51
73.3 876.5 '358. 7 I 41. 03 280 .50
57.0 852.0 '333. 6: 40.82 280 .48
40.7 81 1 . 7 8'32. 7: 40.48 280 .43
24.4 756. 1 836. 1 I 40.01 280.38 I
8. 1 685. 4 764.3: 3'3. 42 280 .30
POND -2 Version: 5.20 S/N:
EXECUTED: 05 -09 -1996 18:06:44
Page 3
Return Freq: 100 years
****************** SUMMARY OF ROUTING CO MPUTATIONS ******************
Pond File:
Inflow Hydrograph:
Outflow Hydrograph:
CS PRO -C .PND
CSP100C .HYD
CS P100CO.HYD
Starting Pond W.S. Elevation -276.00 ft
***** Summary of Peak Outflow and Peak Elevation *****
Peak Inflow = 81.39 cfs
Peak Outflow = 41. 10 cfs
Peak Elevation -280.51 ft
***** Summary of Appr o x imate Pe a k Storage *****
Initi a l Storage -
Peak Storage From Storm =
Total Storage in Pond =
0.00 ac-ft
0.64 ac -ft
0.64 ac -ft
. 0 2
. 03
. 05
. 07
. 09
. 1
. 1 0 ~
. 14
. 15
. 1 7
. 19
. ~ L
. 00 k~
. 2 4
. 26
. 27
. 29
. 3 1
~~ . ~L
. 34
. 36
A
*
POND -2 Ver sion: 5.2 0 S/N:
Pond File :
Inflow Hydr ograp h:
Outfl ow Hyd rograp h :
Peak Inflow =
Peak Outflow -
Peak E le vation =
CSPRO-C .PND
CSP100C .HYO
CS P100CO.HYD
81.39 cfs
41. 10 c f s
280 .51 ft
Page 4
Return Freq: 100 years
EXECUTED: 05-09-1996
18:06:44
0.0 8.0
Flow (cfs)
16.0 24 .0 32.0 40.0 48.0 56.0 64.0 72.0 80.0 88.0
.------:-----:-----:-----:-----:-----:-----:-----:-----:-----:-----:-
x *
x *
x * x *
x *
x * -I
I x *
x * -I x *
x *
x *
x * x *
x *
x * x *
x *
x *
x *
x *
x *
x *
x * x * x * x *
x *
x * -I
I x * I x * '· I x * I
~ A * x *
x * x *
*
* x
* x
-I
' * x
* x
* x
* x
TIME
(hrs)
File: CSP100CO. HYO Qmax = 41 . 1 I -fs -
File: CS P100 C HYO Om ax = 81 . 4 ' -fs . -
POND -2 Ver s ion: 5.2 0 S/N:
EXECUTED: 05-09-1996 18:06:44
Page 1
Return Freq : 50 years
*******************************
* * * ROUTING OF SUBWATERSHED C *
* COLLEGE STATION *
*
* *
* *
* *******************************
Inflow Hydrograph: CSP50C .HYD
Rating Table file: CSPRO-C .PND
----INITIAL CONDITIONS----
Elevation =
Outflow =
Storage
276.00 ft
0.00 cfs
0.00 ac-ft
GIVEN POND DATA
INTERMEDIATE ROUTING
COM PUTATIONS
:ELEVATION OUTFLOW
(ft)
276.00
279.00
280.00
28 1 .00
(cfs)
0.0
26.0
37.0
45.0
STORAGE
(ac -ft)
2S/t
Ccfs)
28/t + 0
(cfs)
------------:-------------:
0.000
0.030
0.300
0 .960:
o.o
43 .6
435.5
1393.6
Time increment Ct) = 0.017 hrs.
0.0
69 .6
472 .5
1438.6
POND -2 Version: 5.20 S/N:
EXECUTED: 05-09 -1996 18:06:44
Pond File:?:
Inflow Hydrograph:
Outflow Hydrograph:
INFLOW HYDROGRAPH
TIME
C:hrs)
Il'WLOW :
(o:fs)
CSPHO -C . F'ND
CSP50C .HYD
CSF'50CO . HYD
11+!2
(o: fs)
Page 2
Return Freq: 50 years
ROUTING COMPUTATIONS
25/t -0
C:o: fs)
25/t + 0 : OUTFLOW :ELEVATION
C:o: fs) (o:fs) (ft)
:--------:---------: :---------:-----------------------:---------:---------
0.000 o.oo: -----0.0 o.o: o.oo 276.00
0.01 7 7.43: 7. 4 1. •3 7. 4: 2.78 276 .32
0.033 14.85: 22.3 6. 1 24.2i •3. 03 277.04
0.050 22 .28 : 37. 1 10. '3 .:t3. 2: 16. 16 277.86
0.067 2 '3. 70: 52.0 15. '3 62. '3: 23.51 278.71
0.083 37. 13 66.8 30.0 82.7: 26.36 27'3. 03
0. 100 44.55 81 .7 57.4 1 11. 7: 27. 15 27'3. 10
o. 117 51. 98 '36. 5 •37. 3 I 153. '3: 28.30 27'3 . 21
0. 1 ,..,,.., ,::,..:;, 5·::.i. 40 11 1 . 4 14'3. 1 2 08. 7: 2'3. 80 27'3. 35
0. 150 66.83 126. 2 212. 1 275.3: 31. 62 279.51
o. 157 74.26 141 1 285. 7 -. C:-'? .-, I 33.74 2 7 '3. 70 . ~'-1-...J •.,.::.I
o. 183 74.26 148.5 362.3 434.2' 35. '35 27 '3. '30
0.200 74.26, 148.5 436.2 510.8 37.32 280.04
0.217 74.25: 148. 5 508.8 584.7 37. •33 280 . 12
(>. 233 66.83: 141. 1 573.0 EA'3. '3 38.47 280. 18
0.250 5'3.40: 125. 2 521.5 6':f3. 2 38.88 28(>. 23
0. 267 51. '38: 11 1. 4 654.5 732.8 3'3. 16 280 .27
0.283 44.55: '36. 5 672.4 751. 1 3'3. 31 280 . 2'3
0.300 37. 1 ':>I -.JI 81 .7 675.5 754. 1 3'3. 33 28(>. 2'3
0.317 2'3. 70: 66. 8 663.8 742 .3 3•3. 23 280 .28
(>. 333 22.28: 52.0 637.8 715.8 3•3. 01 280 .25
0.350 14.85: 37. 1 5 '37. 6 674. •3 38. 68 280.21
0.367 7.43: 22. 3 543.4 61 '3. 8 38.22 280 . 15
0.383 o.oo: 7. 4 475.5 550.8 37.65 280 .08
POND -2 Ver sion: 5.20 S/N:
EXECUTED: 05 -09 -1996 18:06:44
Page 3
Return Freq: 50 years
****************** SUMMARY OF ROUTING COMPUTATIONS ******************
Pond File:
Inflow Hydrogr a ph:
Outflow Hydrograph:
CSPRO -C .PND
CSP50C .HYO
CSP50CO .HYD
Starting Pond W.S. Elevation = 276 .00 ft
***** Su mm ary of Peak Outflow and Peak Elevation *****
Peak Inflow = 74.26 cfs
Peak Outflow -39.33 cfs
Peak Elevation = 280.29 ft
***** Summary o f Ap pr oxi mate Peak Storage *****
Initial Storage =
Peak Storage From Storm -
Total Stor a ge in Pond
0.00 ac-ft
0.49 ac -ft
0.49 ac -ft
. 02
. 0 3
. 05
. 0 7
. 0 9
. 1
. 1 2
. 14
. 15
. 1 7
. 19
0 . ~
. 22
. 2 4
. 25
. 27
. 2'3
. 31
. ~~ ~L
. 34
. 35
x
*
POND -2 Ver s i o n: 5 .20 S/N:
Pond Fil e:
Inflow Hy drograph :
Outflow Hydrogra ph :
Peak Inflow =
Peak Ou tfl ow =
Peak Elevat ion -
CSPRO -C .PND
CS P50C .HYD
CSP50CO .H YO
74 .26 cfs
39.33 cfs
280.29 f ·t
Page 4
Return Freq : 50 years
EXECUTED: 05-09 -1996
18:06:44
0.0 8.0
Flow (c fs)
16.0 24 .0 32.0 40.0 48.0 56.0 64.0 72 .0 80.0 88.0
.------:-----:-----:-----:-----:-----:-----:-----:-----:-----:-----:-
x * x * ,,.
A * x * -I x * I
x *
A * x * x * x * x * x * -I
I x * x * x *
w A * x * x * x * x * x * x * x * x * x * x * x * x * x * x * x * x * -I
I x *
*
* x
* x
* x
* x
-I
I * x
* x
-I
I * x
* x
TIME
Chrs)
File: CS P50CO . HYD Qmax = 39 . 3 c fs
F i l e : CSP50C HYO Qmax = 7 4 . ~ c f s . ~
POND -2 Version: 5.20 S/N:
EXECUTED: 05-09 -1 996 18:06:44
Page 1
Return Freq: 25 years
*******************************
* * * ROUTING OF SUBWATERSHED C *
* COLLEGE STATION *
* ·*-
*
*
*
* *******************************
Inflow Hydrograph: CSF'25C .HYD
Rat ing T ab l e fil e: CSPRO -C .PND
----INITIAL CONDITIONS ----
El evat ion = 276.0 0 ft
Outflow = 0 .00 cfs
Storage = 0.00 ac -ft
GIVEN F'OND DATA
INTERMEDIATE ROUTING
COMPUTATIONS
:ELEVATION: OUTFLOW :
C:ft) C:cfs)
STORAGE
C:ac -ft)
:---------:---------:----------
27E.. 00 0.0 0. 000
279 .00 26.0 0.030
280.00 37.0 0 .300
281. 00 45.0 0. '3E.O
25/t
(cf s)
28/t + 0
(cf s)
:------------:-------------
0.0
43.6
435.5
13'33. 6
0.0
6'3. E,
472.5
1438.6
Time increment C:t) = 0.017 hYs.
POND-2 Ve rsio n: 5.20 S/N:
EXECUTED: 05 -09-1996 18:06:44
Pond File: CSPRO -C .PND
Inflow Hydrograph : CSP25C .HYD
Outflow Hyd ro graph: CSP25CO .HYD
Page 2
Return Freq: 25 years
INFLOW HYDROGRAPH RO UTING COMP UTATIONS
TIME
C:hr s) :
0. 000
0.017
0.033
0.050
0.067
0.083
0. 100
0. 117
0. 133
o. 150
0 . 157
0. 183
0.20 0
0.2 17
(>. 23:3
0.250
0.267
0.283
0.300
0. 317
(>. 333
0 .350
INFLOW :
(cf s )
o. 00 :
7.oo:
14.01 I
I
21. 01 I
I
28 .01 I
I
'"le:' ..,:,,J . 02:
42. (>:;~ :
4'3. 02:
56 . 03:
b3. (>3:
70.03:
70. 03:
G3.03:
56.03:
4 '3 . 02:
42. 0 2:
35. (>~*2 :
28. 01 I
I
21.01 I
I
14. 01 I
I
7 .oo:
0. oo:
I1+I2
(cf s)
25/t --0
(cf s)
25/t + 0
C:c fs)
OUTFLOW ELEVATION
(c f s) (ft)
:---------:------------:-----------------------------
-·--·----o. 0
7. 0 1. 8
2 1. 0 5.7
,..lC:'
..::i.....J . 0 10. 3
4 '3. 0 15.0
63 .0 .-.C" ..::....i. 5
77 .0 48.8
31. 0 84.0
105. 1 130. 5
1 1 '3. 1 187. 7
1 33 . 1 255. 1
140. 1 325. 4.
1 ':>':' .._,.._,, 1 385.2
l 1 '3. 1 42 '3. 7
105. 1 45 ·3 , 7
'31. 0 475.5
Tl. 0 4Tl. 2
63.0 465 . 1
4 '3, 0 43'3 . 4
35 .0 400. 4
2 1 .0 35 <). 2
7.0 28 '3 . 5
o. 0
7 .0
22.8
40 .8 ,
5 '3 . 3:
78 .0 :
102.s:
13'3. 8:
18'3. 0:
24'3 . 6:
32<). 8:
3 '35 . 1 I
I
458 .4:
504 .3:
534 .8:
550 .8'
C" c:.·~, c=-
....J....J.L • ....J
540 .2
514 . 1
474 .5
421 .4
357.2
0 .00
2.62
8 .51
15.24
22.17
26.23
26. '30
27. '32
29.26
30 . '31
32.86
34. 9·:;,
36 .62
37.26
37.65
37.66
37.56
37.34
37.02
35.G l
33 .85
276 .00
27 6.30
276 . '38
277.76
278.56
279 .02
2 79.08
27'3 . 17
27'3. 30
27'3. 45
27'3 . 6 2
27'3 . 81
2 7'3 . •37
280.03
280 .0G
280.08
2 80.08
280 .07
280 .04
280 .00
27'3. 87
279.71
POND -2 Ver s ion: 5 .2 0 S/N:
E XECUTED: 05-09 -1996 18:06:44
Page 3
Return Freq : 25 years
****************** SUMMARY OF ROUTING COMP UT ATIONS ******************
Pond File:
Inflow Hydrograph:
Outflow Hydrog r aph:
CSPRO -C .PND
CSP25C .HYO
CS P 2 5CO .HYD
Star ting P o nd W.S . Elevation = 276.00 ft
***** Summary of Peak Outflow and Peak Elevation *****
Peak Inflow -70 .03 c f s
Peak Outflow -37.66 cfs
Peak Elevation -280.08 ft
***** Summary of Approximate Peak Storage *****
Initial Storage =
Peak Storage From Storm -
Total Storage in Pond =
0.00 ac-ft
0.35 ac -ft
0.35 ac -ft
0. 0
. 02
. 0 3
. 05
. 07
. 09
. 1
. 1 :2
. 1 4
. 1 5
. 17
. 1 '3
. 2
. ~~ ~L
. 24
. 26
. 27
. 2 '3
. 3 1
. ~~ ~~
. 3 4
~ A
*
POND -2 Ver s ion: 5 .2 0 S /N:
Pond File: CSPRO-C .P ND
Inflow Hyd rograp h: CSP25C .HYO
Outfl o w Hydrograph: CSP25CO .HYO
Pe a k I nflow -70 .03 cfs
Peak Outflow -3 7.66 cfs
P ea k Elevation -280.08 ft
Page 4
Return F req: 25 years
EXECUTED: 05-09-1996
18:06:44
0.0 8 .0
Flow (cfs)
16.0 2 4.0 3 2 .0 40.0 48.0 56.0 64.0 7 2.0 80.0 88.0
------:-----:-----:-----:-----:-----:-----:-----:-----:-----:-----:-
-I
I * x * -I I x * x * -I I x * x * x *
A * x *
A * x *
~ A * x *
x * -I
I x *
x *
-I I x *
x * x * x * x * x *
x * x * x * x *
-I * I A
x * x *
x * '. -I x * I
*X
* x
* x
-I I * x
* x
* x
* x
-I I * x
* x
-I I * x
I * x I
TIME
Chr s)
Fi le : CSP25CO . HYD Qma x = 37. 7 c fs
F i le: CS P25 C . HYO Qma x = 7 0. 0 c f s
POND -2 Ver s i o n: 5.20 S/N:
EXECUTED: 05-09 -1996 18:06:44
Page 1
F.'.eturn Freq: 10 years
*******************************
* * ROUTING OF SUBWAT E RSHED C *
* COLLEGE STATION *
* * ·M-
*******************************
Inflow Hy dr o graph: CSP10C .HYD
Rating Table file: CSPRO-C .PND
----INITIAL CONDITIONS ----
El e va t ion = 276.00 ft
Outflow -0.00 cfs
Storage = 0.00 ac -ft
GIVEN POND DATA
INTERMEDIATE ROUTI NG
CO MF'UTAT IONS
lELEVATIONl OUTFLOW : STORAr:3E :
(ft) (cf s) C:ac -ft)
:---------:---------:----------:
275.00 o. 0 o.ooo:
27'3. 00 26.0 0.030:
280.00 37 . 0 o. 300 :
281 .oo 45.0 0 . ':360:
28/t
(cf s)
28/t + 0
(cf s)
:------------:-------------
0.0
43.6
435.5
13'33. 6
o.o
6'3. 6
472.5
1438.6
Time increment (t) = O. 017 hrs.
POND -2 Ver s i o n: 5 .2 0 S /N:
E XECUTED : 05 -09 -1996 18:05:44
F'o nd File:
Infl o w Hy d ro g Ya ph :
Ou tflow Hydrograph:
I NFLOW HYDROGRAF'H
TIME
(hrs) :
INFLOW :
( 0: f s)
CSPF.:O -C . F'ND
CSF' 1 OC . HYD
CSF' 1 OCO . HYD
I1+I2
( 0: f s)
Page 2
F::et Ul' n F r eq: 10 years
ROU TING COMPUTATIONS
2 S/t -0
(o: f s)
28/t + 0
( 0: f s )
OUTFLOW :ELEVATION
(o:fs) (ft)
:--------:---------: :---------:------------:-----------------------------
0. 000 0.00 --------
0.017 I 6.04 6. 0
0.033 12 .08 18. 1
0. 050 18. 1 3 30.2
O.OG7 24. 17 4 .. :. ,., ..:.... • w
0.083 30. 2 1 54.4
o. 100 36.25 65.5
o. 11 7 4 2 . 30 78.6
0. 1 ,.,,., ....,...., 48 .3 4 '30. G
0. 150 54. 38 102.7
o. 167 G0.42 114.8
o. 1 83 54. 38 114.8
0.200 I 48.34 102.7
0.2 1 7 4 2 . 30, 9 0.6
(>. 233 35.2 5! 78.5
0.250 30.21 I
I 66 . c:-..J
0.2 G7 24·. 1 7 : 5 14. 4
0.283 18. 1 3 : 4·-:· ':> ..:.. . ,_,
0 .300 1 2 .oa: 30.2
0.317 5.04 I
I 18. 1
c). 333 o.oo: G.O
0.0
1. 5
5. (>
8. ·3
12. '3
17.0
3(>. 7
r.::-c::-....J....J. 1
8'3 . 5
133. 5
185. 6 I
236.7
272.7
2'35. ,., ,_,
3(>5. 3
3(>3 . . -, ..::.
28 '3. '3
265.8
231. 7
188. 0
1 35 .. 2
o. 0
6.0
1 '3. 5
"IC" .-,
W..J • L
5 1 .-, . ..::.
57.3
83.4
10'3. 2
1 45.7
1 '32 . 3
248.4
301 . 4
33 13. 5
363 .4
373 . '3
37 1. 7
357.6
332.2
295. 1
24'3 . 8
1 '34. 0
0.00
2.26
7.34
13. 15
1'3.13
25.16
26.38
27.08
28.08
2'3. 35
30.88
33.37
34.02
34.31
34.25
33.86
33. 17
32 .18
30. '32
2 '3. 40
276.00
276.26
276 .85
277.52
278 .2 1
278 . '30
2 7 "3. 03
27'3 . 10
27'3 . 1 '3
27'3 . 30
27'3. 44
27 '3. 58
27 '3.67
27'3 . 73
2 7'3. 76
2 7'3. 75
27'3. 71
2 7'3. 65
27'3. 56
27'3. 45
2 7'3. 31
POND -2 Versio n: 5.20 SIN:
EXECUTED : 05-09 -1 996 18:06:44
Page 3
F.:eturn Freq: 10 years
****************** S UMMARY OF ROUTING COMPUTATIONS ******************
Po nd File: CSPRO -C .PND
Infl o w Hydrograph: CSP lOC .HYO
Outfl ow Hydrograph: CSP10CO .HYD
Starting Pond W.S . Elevation -276.00 ft
***** S ummary of Peak Outfl ow and Peak Elevation *****
Peak Inflow = 60.42 cf s
Pe a k Out fl ow --34.31 cf s
Peak Elevation = 27'-::J. 76 ft
***** Summary of Approximate Peak Storage *****
Initial Storage -
P ea k Storage From Storm -
Tot a l St orage in Po nd =
0. 00 ac -ft
0. 23 ac--f t
0. 23 ac --·ft
0. 0
. 0:2
. 03
. 05
. 0 7
. 0'3
. 1
. 1 "':0 ..:..
. 14
. 1 r.:· . ...J
. 17
. 1.'3
. 2
. 22
. 24
. 26
. 27
. 2'3
. 31
'""l ·-· . ..:.i . .::.
y;
*
POND -2 Version: 5.20 S/N:
Pond File:
Inflow Hy d rograp h:
Outflow Hyd rograp h:
Peak Inf 1 o:•w ==
Peak Outf l ow ··-
P eak Elevation --
CSPF.:0 -C .F'N D
CSP 1 OC . HYD
CSF'l OCO .HYD
50. <t2 cfs
34.31 c 'f s
27 '3. 75 ft
Page 4
F.:eturn F r eq: 10 years
EXE CUTED: 05-09-1995
18:05:44
0.0 6.0 12 .0
Flow C:cfs)
18 .0 24.0 30.0 3 5.0 4 2 .0 48.0 54 .0 50.0 65.0
.------:-----:-----:-----:-----:-----:-----:-----:-----:-----:-----:-
-I
I *
:1~ ·Jf-
-I
I :1~ *
~~ ·Jf-
)'~ *
~I~ ·K-
-I
I :";~ *
:;-; ·Jf-
:1~ ·!!-
:1~ ·K-
~'~ -l!·
:1; *
~'~ *
)'~ ·lt-
-I
I x *
)~ * --I
I :1~ *
y~ *
;,~ *
:1~ * :1; *
:1; *
:1~ *
~I, *
~/~ *
y~· ·K-
-I
I :1~ *
)': * -I
I ~;*
I * :1~ '· I * :1~ I
* :1;
·lt-:1;
* :1;
-I * :1; I
·K-:"I~
* y;
* :1~
* :1;
* '."!:
TIME
(hrs)
Fi 1 e: CSP 10CO HYD Qma ~1; = 3 4. ~. c fs . ..:;,
Fi 1 e: CS F'10C . HYD Qma~,; == 60. 4 c f s
POND-2 Version: 5 .20 S/N: Page 1
EXECUTED: 05 -09 -1996 18:06:44 Peturn Fr e q: 5 years
*******************************
* * RO UTING OF SUB WAT ERS HED C *
* COL LEGE ST ATION *
* *
* -IE·
*******************************
Infl o w Hyd rograp h: CSP5C .HYD
Rating Table file: CSPRO -C .PND
----INITIAL CON DITION S ----
Elevat ion = 276 .00 ft
Outfl o w -0.00 cfs
Storage = 0.00 ac-ft
GIVEN POND DATA
INT ER MEDIATE ROUTING
CO MPUTATION S
:EL EVATI ON: OUTF LOW :
(ft) (cf s)
STOF.:AGE :
(ac-ft)
:---------:---------:----------:
275.00 o.o o .ooo:
27 '3. 00 26.0 0.030:
2BO.OO 37 . 0 0.300:
281 . 00 45.0 o. '350:
2S/t
(cf s)
2S/t + 0
(c f s)
:------------:-------------
0 .0
43.6
435 .5
13'33. 5
0.0
6 '3. 6
472.5
1438.6
Time increment Ct) = 0.017 hrs.
- ---------------'
POND -2 Version: 5.20 S/N:
EXECUTED: 05-09-1996 18:06:44
Pond File:
Inflow Hydrograph:
Outflow Hyd ro graph:
INFLOW HYDROGRAPH
TIME
(hrs)
INFLOt..J :
(o: fs)
CSPRO -·-C • PND
CSP5C
CSP5CO
.HYD
.HYD
I1+I2
(o: fs)
Page 2
Return Freq: 5 years
ROUTING COMPUTATIONS
2S/t --0
(o:fs)
28/t + 0 : OUTFLOW :ELEVATION:
( ·= f s) ( ·= f s) (ft)
:--------:---------: :---------:------------:-----------:------------------:
o. 000 o. 00 -----
o. 017 0:::-.J. 51 c · .J • 6
o . 033 1 1 2 1 15. 8 I .
o. 050 16. s·-.. ..::. 28. 0
o. OC7 22. 42 3'3 . . -, .. ~
o. 083 28. 03 50. c:-,J
o. 100 ,..,,, 63 61 "7 ..:;,.,::, . . I
o. 1 17 3 ':21. 24 T-· .,;:. . '3
o. 133 44. 84 84. 1
o. 150 50. 45 95. 3
o. 157 5G. 06 106. 0:::-..;
o. 183 50. 45 106. c.-
.J
o. 200 44. 84 '35. 3
0. 217 3'3. 24 I 84. 1 I
0. :2 33 '?? ....,...., . 63 I
I 7·-· ..:... . '3
0. 25c) 28. 03 I 61 7 I .
0. 267 2:;~. 4·-:· I 50. 5 ..:.. I
0. 283 15. s--· I 3•3. ·-:· ..::. I ..:..
o. 300 1 1 21 I 28. 0 . I
0. 317 0::-61 I 16. 8 .J. I
o. 333 o. 00 I C" 6 I .J.
0. 0 0.
1 . 4 5.
4. 6 18.
8. 2 l"""'l ·-· ,:;_,.L •
1:2. 0 47.
15. 8 6 ·-:· ..:.. .
. -.i=
..::..J • 0 77.
44. 3 '37.
7':• ...., . 2 128.
1 1 1 . 1 158.
157. 5 217.
201 . 4 254 .
232. 3 296.
250. '3 316.
257. 9 '?·-:·r:i u..:...u.
.-.c-'""l
.L...J~. ·:;, 31 '3.
23'3. 5 304.
215. ,.., 278. ,.:;
181 . '3 243.
13'3. 6 1 '38.
8°3. 1 145.
0 I o. I
6 I 2. I ..... I 6. ..::. I
6 I 12. I
5 I 17. I
4 I 23. I
4 26 •
'3 25.
4 27.
5 28.
6 30.
0 31 .
7 ,.....-.
~..::..
4 '".:'·-:· ....i..:...
8 r;:.·-:1 .,,_,...:_ .
5 32.
3 I
f""\·-· .,::, ...::. .
8 I 31 I .
4 I 30. I , I 2'3. I I
3 I 28. I
00
1 (l s .. ~. ..:..
20
75
34
21
77
51
70
04
31
20
74
'34
s--:· ..:..
41
71
74
53
07
I
276 .00
276 .24
276 .79 I
277 .41
278.05
278. 6'3
27'3. 02
27 '3. 07
27'3. 15
27'3. 25
27'3. 37
27'3 . 48
27 '3. 56
27'3 . 61
27'3 . 63
279.62
27'3. 58
27'3. 52
27'3. 43
27'3. 32
27'3. 1 '3
POND-2 Ver s ion: 5 .20 S/N:
EXECUTED: 05-09-1996 18:06:44
Page 3
Return Freq : 5 years
****************** SUMMARY OF ROUTI NG COMPUTATIONS ******************
Pond File: CSPRO -C .PND
Inf l ow Hydrograph:
Outflow Hydrograph:
CSP5C
CSP5CO
.HYD
.HYD
Starting Pond W.S. Elevation -276.00 ft
***** Summary of Peak Outf l ow and Peak E l evation *****
Peak Inflow = 56.06 cfs
Peak Out fl ow = 32.94 cfs
Peak Elevation -279.63 ft
***** Summary of Approximate Peak Storage *****
Initial Storage =
Peak Storage Fro m Storm =
Total Storage in Pon d
0.00 ac -ft
0 .20 ac-ft
0.2 0 ac -ft
0 . 0
. 0 2
. 0 3
. 05
. 0 7
. 09
. 1
. 12
. 14
. 15
. 17
. 1 '3
. 2
. 22
. 24
. 26
. 27
. 2'3
. 31
. ~~ ~k
x
*
POND -2 Version: 5.20 S/N:
Pond File: CSPRO-C .PND
Inflow Hydrograph: CSP5C .HYD
Outflow Hydr ograph: CSP5CO .HYD
Peak Inflow -56 . 0 6 c fs
Peak Out flow -~~ ~~-94 c f s
Peak Ele v at i o n -279. 63 ft
Page 4
Return Freq: 5 years
EXECUTED: 05-09-1996
18:06:44
Flow Cc fs)
0.0 6.0 12.0 18.0 24.0 30.0 36.0 4 2.0 48.0 54.0 60.0 66 .0
.------:-----:-----:-----:-----:-----:-----:-----:-----:-----:-----:-
-1 * 1
A * x *
A * x * x * x * x * x * x * x * x *
x *
A * x * x *
x *
x * x * x * x *
A *
x *
A *
x * x * x * x *
*X
I
1, * x
I * x I
* x
-I * x
* x
* x
* x
* x
* x
* x
* x
TI ME
Chrs)
Fi 1 e: CSP5CO HYD Qmax = ~~ 9 c fs . ~~ .
Fi 1 e: CSP5C . HYD Qmax = 56. 1 c fs
. I
SUBWATERSHED D, F, G, H
POND-2 Version: 5.20 S/N:
EXECUTED: 04-16-1996 16:40:33
Page 1
Return Freq: 100 years
**************************************
* * * ROUTING FOR SUBWATERSHED D,F,G,H *
* COLLEGE STATION *
* * * *
*
* **************************************
Inflow Hydrograph: CSP100D .HYD
Rating Table file: CSPRO-D .PND
----INITIAL CONDITIONS----
Elevat ion = 277.57 ft
Out f 1 c•w
Stc•rage
=
=
0.00 cfs
0.00 ac-ft
GIVEN POND DATA
INTERMEDIATE ROUTING
COMPUTATIONS
:ELEVATION: OUTFLOW
(ft) (cfs)
STOF.:AGE :
( ac -ft )
:---------:-------------------
277.57
278.00
27'3. 00
280.00
281. 00
282.00
283.00
284.00
0. (l
1. (l
3.0
7.0
21. 0
3'3. 0
50.0
60.0
0.000
0.001
o. 160
0.710
1.510
3. 150
6.590
11.410
2S/t
(cfs)
28/t + 0
(c fs)
------------:-------------o.o 0.0
1. 5 -, C" Lo ;;:J
":•'?·-J '=' .L.Wk• '""1
.-.. ,..,C" ~ .L...:;, "\J • ,.:,
1030.7 1037.7
21 '32. 1 2213. 1
4572. '3 4611. '3
'3566. 8 '3616.8
16564.0 16624.0
Time increment (t) = 0.017 hrs.
-------------
POND-2 Version: 5.20 S/N:
EXECUTED: 04-16-1996 16:40:33
Pond File: CSPRO-D .PND
Inflow Hydrograph: CSPlOOD .HYD
Outflow Hydrograph: CSPlOODO.HYD
Page 2
Return Freq: 100 years
INFLOW HYDROGRAPH ROUTING COMPUTATIONS ------------------------------------------------------------------------
TIME INFLOW
(hrs) : (r: fs)
:--------:---------
0.000 I
0.017
0.033
0.050
0.067
0.083
o. 1 (l(l
0.117
0.133
o. 150
0. 167
o. 183
0.200
0.217
C). 233
0.250 I
0.267
0.283
o. 300
0.317
0.333
0 .350
0.367
0.383
0.400
0.417
(l.433
0.450
0.467
0.483
o. 500
0.517
0.533
0.550 I
0.567
0.583
0.600
0.617
0.633
0.650
0.667
0.683
0.700
o.717
0.733
0.00
8.08
16. 16
24.24
32.32
40. 40
48.48
56.56
64.64
72.72
80.80.
88.88:
'36. •35:
105.03:
113.11:
121.19:
12'3. 27
137.35
137.35
137.35
137.35
137.35
137.35
137.35
137.35
137.35
137.35
137.35
137.35
137.35
137.35
137.35
137.35.
137.35
137.35
137.35
137.35
137.35
137.35
137.35
137.35
137.35
137.35
137.35
137.35
11+12
(c fs)
28/t -0
(cf s)
28/t + 0 OUTFLOW ELEVATION
(cf s) (r:fs) (ft)
:---------------------'-----------------------------
8. 1
24.2
40.4
56.6
72.7
88. '3
105.0
121.2
137.4
153.5
16'3. 7
185.8
2<)2. (>
218.1
234 .3
250 .5
266.6
274.7
274.7
274.7
274.7
274.7
274 .7
274.7
274.7
274.7
274.7
274.7
274.7
274.7
274.7
274.7
274.7
274.7
274.7
274 .7
274.7
274.7
274.7
274.7
274 .7
274.7
274.7
274 .7
o. 0
6.0
27.7
65.0
117.5
185.0
267.5
365.2
477. '3
605.5
747.8
'304. 6
1075.2
1257.5
1451.2
1656. 1
1871.8
20'38.2
2328.5
2555.4
2778 .8
29'38 . '3
3215.7
342'3. 2
363'3.5
3846.7
4050,, 8
4251. 8
444'3. 7
4646.0
4841.3
5035.8
522'3.4
5422.2
5614.1
5805.2
5•3•35. 5
6184. '3
6373.4
6561.2
6748.1
6'334.2
711'3.5
7304.0
7487.6
0. 0
8. 1
30.2
68.1
121.6
1'30.3
273. '3
372.6
486.4
615.2
75'3.0
'317.4
10'30. 5
1277.2
1475.6
1685.5
1'306.5
2138.4
2372. •3
26<)3. 2
2830.1
3053.5
3273.6
34'30. 4
3703.'3 1
3914.2
4121.4
4325.5
4526.5
4724.4
4'320. 7
5116.0
5310.5
5504. 1
56'36. '3
5888.8
607"3. '3
6270.2
645'3. 6:
6648.1:
6835. '3:
7022.8:
7208. '3:
73 '34. 2:
7578.7:
o. 00
1. 05
1. 24
1. 56
2. (>2
2.61
3. 1 '3
3.68
4.25
4.89
5.61
6.40
7.63
'3. 85
1 .-.. ·"":•·"':• "-• ..:;....:..
14.72
17.35
20. 11
22. 2<)
23. '33
25 .63
27.31
28. '36 I
30.58
32. 1 '3
33.77
35.32
36.85 I
38.36
3'3. 25
3'3. 68
40. 11
40.54
40. '36
41. 38
41.81
4 .-.. ·-::1'""\ ..... -~
42.64
43.06
43.48
43. 8'3
44.30
44.71
45.12
45.52
277.57
278.02
278.12
278.28
278.51
278. 81 I
27'3. 05
279. 17
27"3. 31
279.47
279.65
27'3.85
280.04
280.20
280.37
280.55
280.74
280. '34
281. 07
281.16
281.26
281.35
281.44
281. 53
281.62
281.71
281.80
281. 88
281. 96
282. (>2
282.06
282.10
282. 14
282.18
282.22
282.26
282. 2 '3
282.33
282.37
282.41 I
282.44
282.48
282.52
282.56
282. 5•3 I :
------------------------------~------------------------
POND-2 Version: 5.20 S/N:
EXECUTED: 04-16 -1996 16:40:33
Pond File: CSPF.:0-D .PND
Inflow Hydrograph: CSPlOOD .HYO
Outflow Hydrograph: CSP100DO.HYD
INFLOW HYDROGRAPH
TIME
(hrs)
INFLOW I
(r:fs)
Il+I 2
(r: fs)
Page 3
Return Freq: 100 years
ROUTING COMPUTATIONS
25/t -0 25/t + 0 l OUTFLOW :ELEVATION:
(r:fs) (r:fs) (ft)
:-----------------:--------------------------------:------------------:
0.750
0.767
0.783
0.800
0.817
0.833
O.S50
0.867
O.SS4
0.900
o. '317
o. •334
o. '350
o. '367
0.9S4
1.000
1. 017
129.2 7
1 2 1.1 '3
113.11
105.03
'36. '35:
8S.S8:
so.so:
72.72:
64. EA:
56.56
48.4S
40.40
32.32
~'2 4. 24
16. 16
S.08
0. (l(l
266.6
250.5
234.3
21S. 1
202.0
185.8 I
169.7
153.5
137.4
1 2 1.2
105.0
8S. '3
72.7
56.6
40.4
24.2
s. 1
7662.4
7820.4
7'361.6
8086.0
Sl '33. 8
8285.1
S35'3. '3
8418.3
8460.3
8486.0
8495.6
84S9.0
S466.4
8427.7
S373.2
8302.8
8216.6
7754.3l
7 '312. 9:
8054.7:
817'3.7:
s2ss.o:
S379.7:
S454.S
8513.4
S555.6
8581.5
S5'31. 1
S5S4.5
S561. 7
8522.'3
846S. 1.
S3'37. 4:
S310.9:
45. '31 282. 63
46.26 2S2.66
46. 57 282. 6'3
46.84 2S2.71 I
47.08 282.73
47.28 282.75
47.45 I 2S2.77
47.57 282.78
47. 67 282. 7•3
47. 7 2 2S2. 7•3
47.75 2S2.SO
47.73 282.7'3
47.68 282.79
47.60 282.7S
47.4S 282.77
47.32 2S2.76
47.13 2S2.74
POND-2 Version: 5.20 S/N:
EXECUTED: 04-16-1996 16:40:33
Page 4
Return Freq: 100 ~ears
****************** SUMMARY OF ROUTING COMPUTATIONS ******************
Pond File: CSPRO-D .PND
Inflow Hydrograph: CSP100D .HYD
Outflow Hydrograph: CSP100DO.HYD
Starting Pond W.S. Elevation = 277.57 ft
***** Summary of Peak Outflow and Peak Elevation
Peak Inflow = 137.35 cfs
Peak Outflow = 47.75 cfs
Peak Elevation = 282.80 ft
***** Summary of Approximate Peak Storage *****
Initial Storage =
Peak Storage From Storm =
Total Storage in Pond =
0.00 ac-ft
5.89 ac-ft
5.89 ac-ft
*****
POND-2 Version: 5.20 S/N:
Pc•n d Fi 1 e:
Inflow Hydrograph:
Outflow Hydrograph:
Peak Inflow =
Peak Outflc•w =
Peak El evat i•:in =
0 15 30
CSPF.:0-D . PND
CSP100D .HYO
CSP100DO.HYD
137.35 cfs
47.75 cfs
282 .80 ft
45 60 75 '30 105
Page 5
Return Freq: 100 years
EXECUTED: 04-16-1996
16:40:33
Fl c•w (c fs)
120 135 150 165
------:-----:-----:-----:-----:-----:-----:-----:-----:-----:-----:-
. 1
. 1 ·-· ..::.
. 14
. 15
. 17
. 1 '3
-, . ..:..
. 22
.24
.26
.27
. 2'~
.31
,.....-. . ..:;,..::..
. 34
.36
.37
• 3•3
.41
.43
.44
. 46
x
~I~
~I~
-:
_,
-:
TIME
(hrs)
~1:
~:
Y:
:"!~
~I~
7~
y:
~~
x
x
x
x
x
x
x File: CSP100DO .HYD * File: CSP 100D .HYO
*
*
*
*
*
*
Qmax =
*
*
* * *
47.8 •:fs
137. 4 •: fs
* * * * *
* *
* *
*
* * * * * * * *
*
*
* * * * *
* * * * *
*
*
POND -2 Version: 5.2 0 SIN:
EXECUTED: 04-16 -1996 16:40:33
Page 1
Return Freq: 50 years
**************************************
* * * ROUTING FOR SUBWATERSHED D,F,G,H * * COLLEGE STATION *
* * *
*
*
* **************************************
Inflow Hydrograph: CSF'50D .HYO
Rating Table file: CSF'RO-D .F'ND
----INITIAL CONDITIONS----
El evat ion = 277.57 ft
Outflow = 0.00 cfs
Storage = 0.00 ac-ft
GIVEN POND DATA
INTERMEDIATE ROUTING
COMPUTATIONS
lELEVATION
(ft)
:---------
277.57
278.00
279.00
280 .00
281. 00
28 2 .00
283.00
284.00
OUTFLOW STOF~AGE
(c fs) (ac-ft)
-------------------o.o 0.000
1. 0 0.001
3. 0 o. 160
7.0 0.710
21. 0 1.510
3'3. 0 3. 150
50.0 6.590
60. 0 11.410
25/t
(1: fs)
25/t + 0
(c fs)
------------:-------------: o.o o.o
1. 5 2.5
·-·"""·-· '"" L~...::. • ..::, 235.3
1030.7 1037.7
21 '32. 1 2213. 1
4572.9 4611. '3
'3566. 8 9616.8
16564.0 16624.0
Time increment (t) = 0.017 hrs.
POND-2 Version: 5.20 5/N:
EXECUTED: 04-16-1996 16:40:33
Pr:•nd File:
Inflow Hydrograph:
Outflow Hydrograph:
INFLOW HYDROGRAPH
TIME
(hrs)
INFLOW
(r:fs)
C5PF.:O-D . PND
CSP50D .HYD
CSP50DO .HYD
I1+I2
(•: fs)
Page 2
Return Freq: 50 years
ROUTING COMPUTATIONS
25/t -0 25/t + 0 : OUTFLOW ELEVATION
C:i: fs) (i:fs) (ft)
:-------------------------------------------------:------------------
o. 000
0.017
0.033
o. 050
0.067
0.083
o. 100
o . 117
o. 133
0 • 150 I
o. 167
0. 183
o. 200
0.217
0.233
0.250
0.267
0.283
0.300
0.317
0.333
0.350
0.367
0.383
o. 400 I
0.417
0.433
0.450
0.467
0.483
0.500
0.517
0.533
0.550
0.567
0.583
0. 600
0.617
0.633
o. 650
0.667
0.683
0.700
0.717
0.733
o. 00
7.40
14. 7•3
22. 1 '3
36. •3•3
44.38
51. 78
5'3, 18 I
66.57
73. •37
81.37
88.77
'36. 16
103.56
110.96
118.35:
125.75'
125.75
125.75
125.75
125.75
125.75
125.75
125.75
125.75
125.75
125.75
125.75
125.75
125.75
125.75
125.75
125.75.
125.75
125.75
125.75
125.75
125.75
125.75
125.75
125.75
118. 35
110. '36
103.56
7.4
22.2
37.0
51. 8
66.6
81. 4
96.2
111.0
125.8
140.5
155.3
170. 1
184. '3
1 '3'3. 7
214.5
22·~. 3
244.1
251. 5
251.5
251. 5
251. 5
251.5
251.5
251. 5
251.5
251.5 .
251. 5
251. 5
251. 5
251. 5
251.5
251. 5
251. 5
251.5
251. 5
251.5
251.5
251.5
251.5
251. 5
251. 5
244. 1
22 '3. 3
214.5
o. 0
5.3
25. 1
5'3. 0
106. '3
168.6
243.8
332. ·3
435.8
552.3
682.3
825.6
982.2
1150.0
1328.3 I
1516.8
1715.2
1'323. 4
2133.8 I
2340.7
2544.5
2745.3
2'343. 0
3137.8
332'3.6
3518.6
3704..7
3888.1
4068.7
4246.5
4421.7
4595.0
4767.4 I
4 '339. 2
5110.1
5280.3
544'3. 8
5618.5
5786.4
5'353. 7
6120.2
6285. '3
6443.6
6585.9
6712.8
o.o:
7.4'
27.5
62.1
110.8
173.5
250. 0
340.0
443.'3'
561. 6
6'32. 8
837.6
'3'35. 8
1167.1
134'3. 7
1542.8
1746.1
1 '35'3. 3
2174.9
2385.3:
25'32. 2:
27'36. 0:
29'36, 8 I
31 '34. 5
338'3. 3
3581.1
3770.1
3956.2
413'3. 6
432<). 2:
44'38. (l'
4673.2
4846.5
5018. '3
5190. 7
5361.6
5531. 8
5701.3.
5870.0
6037.9
62(>5. 2
6371.7
6530.0
6672.9
6800.4
0.00 277.57
1.04 278.02
1.22 278.11
1.51 I 278.26
1. •33 278. 47
2.47 278.73
3, 07 27'3, 02 I
3.52 27'3.13
4.04 279.26
4. 63 27'3. 41
5. 28 27'3. 57
6.00 I 279,75
6. 7'3 27'3. '35
8.54 280.11
10.72 280.27
13.02 280.43
15.44 280.60
1 7. '38 280. 78
20. 54 280. •37
22.29 I 281,07
23.84 281.16
25.37 281.24
26.88 281.33
28.36 281.41
2'3, 83 I 281. 49
31,27 281,57 I
32.68 281.65
34.08 281.73
35.46 281.80
36. 81 281. 88
38. 15 281. 95
3•3. 13 282. 01
3'3. 52 282. (>5
3•3. 8'3 282. 08
40.27 282.12
40.65 282.15
41. 02 282. 18
41. 3'3 282. 22
41.77 282.25
42.13 282.28
42. 5(> 282. 32
.:~2. 87 282. 35
43.22 282.38
43.53 282.41
43.81 282.44 I -----·-------------------------------------------------
POND -2 Version: 5.20 S/N:
EXECUTED: 04-16-1996 16:40:33
Pond File: CSPRO-D .PND
Inflow Hydrograph: CS P50D .HYO
Outflow Hydrograph: CSP50DO .HYO
Page 3
Return Freq: 50 years
INFLOW HYDROGRAPH ROUTING COMPUTATIONS
TIME INFLOW :
(hrs) (r: fs)
!-----------------:
0.750 96.16:
0.767 88.77:
0.783 81.37:
0.800 73.'37
0.817 66.57
0.833 59.18
0.850 51.78
0.867 44.38
0.884 36.99
o. 900 2'3. 5 '3
0. '3 1 7 22 . 1 '3
o. '334 14. 79
0.950 7.40
0.967 0.00
I1+I2 25/t -0
(r:fs) (r:fs)
199.7 6824.4
184.9 6920.8
170.1 7002.0
155.3 7068.2
140.5 7119.3
125.8 7155.5
111.0 7176.7
96.2 7183.2
81.4 7174.9
66.6 7151.9
51.8 7114.3
37.0 7062.1
22.2 6995.5
7.4 6914.4
25/t + 0 OUTFLOW ELEVATION
(r:fs) (r:fs) (ft)
6912.5 44.06 282.46
7009.3 44.27 282.48
7090.9 44.45 282.50
7157.3 44.59 282.51
7208.7 44.71 282.52
7245.0 44.79 282.53
7266.4 44.83 282.53
7272.9 44.85 282.53 I
7264.6 44.83 282.53
7241.5: 44.78 2 82.53
7203.7: 44.70 282.52
7151.3: 44.58 282.51
7084.3: 44.43 282.49
7002.9: 44.26 282.48
POND -2 Version: 5.20 S/N:
EXECUTED: 04-16 -1996 16:40:33
Page 4
Return Freq: 50 years
****************** SUMMARY OF ROUTING COMPUTATIONS ******************
Pond File:
Inflow Hydrograph:
Outflow Hydrograph:
CSPRO -D .PND
CSP50D .HYD
CSP50DO .HYD
Starting Pond W.S. Elevation = 277.57 ft
***** Summary of Peak Outflow and Peak Elevation
Peak Inflow = 125.75 cfs
Peak Outflow = 44.85 cfs
Peak Elevation = 282.53 ft
***** Summary of Approximate Peak Storage *****
Initial Storage =
Peak Storage From Storm =
Total Storage in Pond =
0.00 ac-ft
4.98 ac-ft
4.98 ac -ft
*****
. 1
. 1 ·-:· ..:...
. 14
. 15
. 17
. 1 '3
.-, . ..::.
.22
. 24
. 25
.27
. 2'3
.31
'"".-. • u..::.
.34
.36
.37
.39
.41
.43
.44
.46
)'~
*
POND-2 Version: 5.20 S/N:
Pond File: CSPRO-D .PND
Inflow Hydrograph: CSP50D .HYD
Outflow Hydr o graph: CSP50DO .HYO
Peak Inflow = 125.75 cfs
Peak Outflow -·-44.85 cfs
Peak Elevat ion = 2 8 2 .53 ft
0 15 30 45 E,O 75 '30 105
Page 5
Return Freq: 50 years
EXE CUTED: 04 -16-1996
16:40:33
120
Flow (cfs)
150 165
.------:-----:-----:-----:-----:-----:-----:-----:-----:-----:-----:-
-: x ·II-
I )'~ * I
-: y~ *
y~ * -: )'~ ·II-
y~ * -: )'~ -II·
y~ *
:1~ *
:~ *
y~ *
y~ *
:1~ * y: * -: :1~ * x * -: )'~ * y: * -: x ·II-
)'~ *
y~ *
y~ * x * :1: *
)'~ * Y: *
)'~ * y; ·If-
~/~ * )'~ * x -II·
~/~ * :,; *
)~ *
)'~ *
:1~ * y; *
:1~ *
:1~ * y; *
)'~ * x *
:1~ *
TIME
(hrs)
Fi 1 e : CS P50DO .HYD Qma :1; --44.8 c fs
File: CSP50D .HYD Qma :r. = 125.8 c f s
POND-2 Version: 5.20 S/N:
EXECUTED: 04 -16-1996 16:40:33
Page 1
Return Freq: 25 years
**************************************
* * ROUTING FOR SUBWATERSHED D,F,G,H *
* COLLEGE STATION *
* * * * * * **************************************
Inflow Hydrograph: CSP25D .HYD
Rating Table file: C8PRO-D .PND
----INITIAL CONDITIONS----
El evat ion = 277.57 ft
Outflow = 0.00 cfs
Storage = 0.00 ac -ft
GIVEN POND DATA
INTERMEDIATE ROUTING
COMPUTATIONS
ELEVATIONl OUTFLOW l
(ft) (cfs)
277.57
278.00
279.00
280.00
281.00
282.00
283.00
2 84.00
o.o
1. 0
3. 0
7. 0
21. 0
39.0
50.0
60. 0
STORAGE
(ac-ft)
o. 000
o. 001
o. 150
o. 710
1.510
3. 150
5.590
11.410
28/t
(cf s)
28/t + 0
(•:fs)
-------------------------:
o. 0
1. 5
1030.7
2192.1
4572.'3
•3555. 8
16564.0
o.o
.-. C' ..::. . ""'
235.3
1037.7
2213.1
4511. 9
•3515. 8
16624.0
Time increment (t) = 0.017 hrs.
POND-2 Version: 5.20 S/N: Page 2
Return Freq: 25 years EXECUTED: 04 -16-1996 16:40:33
Pond File:
Inflow Hydrograph:
Outflow Hydrograph:
INFLOW HYDROGRAPH
TIME INFLOW
C:hrs) : C:c fs)
:--------·---------
0. 000
0.017
0.033
0.050
0.067
0.083
0. 100
o. 117
0. 133
0. 150
0. 167
o. 183
o. 200
0.217
(>. 233
0.250
0.267
0.283
o. 300
0.317
0.333
0.350
0.367
0.383
0.400
0.417
0.433
0.450
0.467
0.483
0.500
0.517
0.533
0.550
0.567
0.583
0.600
0.617
0.633
o. 650
0.667
0.683
0.700
0.717
0.733
o. 00
7. •35
15. '32
23.88
31. 85
3'3. 81
47.77
55.73
63.6'3
71.65
79.51
87.57
'35. 54
103.50
111.46.
11 '3. 42:
127.38
135.34
135.34
135.34
135.34
135.34
135.34
135.34
135.34
135.34
135.34
135.34
135.34
135.34
135.34
127.38
119.42
111.46
103. 50
'35. 54
87.57.
7'3. 61
71. 65
63. 6'3
55.73
47.77
39.81
31.85.
23.88:
CSPRO -D .PND
CSP25D .HYD
CSP25DO .HYD
ROUTING COMPUTATIONS -------------------------------------------------------
I1+I2
(cf s)
25/t -0
C:•: fs)
25/t + 0
(c fs)
OUTFLOW :ELEVATION:
C:i: fs) (ft)
:-----------------------------------------:---------:
8.0
23. •3
3'3. 8
55.7
71. 7
87.6
103.5
119.4
135.3
151.3
167.2
183. 1
1 '3'3. 0
215.0
23<). •3
246.8
252.7
270.7
270.7
270.7
270.7
270.7
270.7
270.7
270.7
270.7
270.7
270.7
270.7
270.7
252.7
246.8
23(>. •3
215.0
1 '39. 0
183. 1
167.2
151. 3
135.3
11'3.4
103.5
87.6
71. 7
55.7
0.0
27.3
64.0
115.7
182.2
253.4
35'3. 6
470.6
596.2
736.4
890.'3
105'3. 1
1238. •3
1430.0
1 E.32. 0
1844.8
2068.0
22·:M. 8
2518.2
2738.2
2'355. 0
3168.5
3378.7
3585. '3
378'3. '3
3'3'30. 8
4188.8
4383.7
4576.2
4767. '3
4'350. 8
5117.0
5266.6
539'3. 8
5516.5
5616.8 I
5700.8
5768.6
582(>. 3
5855. '3
5875.4
5879. 1
5866.9
5838.8
0.0
8.0
29.7
67. 1
11'3.7
187.3
26'3. 7
366.9
47'3. 0
605. '3
747.5
'303. 6 I
1074.0
1258.2
1453. '3
1660.9
1878.8
2107.5
2338.7
2565.5
2788. '3
3008. '3
3225.6
343'3. 1
3649.4
3856.5
4060.6
4261.5
4459.4
4654.4
4846.9
5030.6
51'37.6
5347. '3
5481. 6
55'38. 8
56'39. 6
5784.01
5852. 1
5'304. 0
5'339. 7
5'359. 4
5963.0
5'350. 7
5'322. 6
o.oo
1.05 I
1 .-,,., . .:~
1. 56
2.01
2. 5'3
3. 17
3.66
4.21
4.85
5.55
6.33
7.43
'3. 63
11. 96
14.42
17.02
1 '3. 74
21. •34
23.64 I
25.32
26. •37
28.50
30.20
31. 78
33.33
34.86
36.37
37.86
39.09
39.52
39. '32
40. 2'3
40.62
40. '31
41. 17
41. 3'3
41. 58
41. 73
41.84
41. '32
41. '36
41. 97
41.94
41. 88
277.57
278.02
278.12
278.28 I
278.50
278. 7•3
27'3. 04
27'3. 15
279.30
279.46
27'3. EA
279.83
280.03
280. 1'3
280.35
280.53
280.72
280.91
281.05
281.15
281. 24
281.33
281. 42
281.51
281.60
281.6'3
281.77
281.85
281. 94
282.01
282. (>5
282.08
282. 12
282.15
282.17
282. 2C>
282.22
282.23
282.25
282.26
282.27
282.27
282.27
282.27
282.26
------------------------------------------------------
POND-2 Version: 5.20 S/N:
EXECUTED: 04-16 -1996 16:40:33
Pond File:
Inflow Hydrograph:
Outflow Hydrograph:
INFLOW HYDROGRAPH
TIME
(hrs)
INFLOW :
(o: fs)
CSPRO-D .PND
CSP 2 5D .HYD
CSP25DO .HYD
I1+I2
(1: fs)
Page 3
Return Freq: 25 ~ears
ROUTING COMPUTATIONS
28/t -0 28/t + 0 : OUTFLOW :ELEVATION:
(o:fs) (o: fs) (o:fs) (ft)
:-----------------: ---------------------------------:---------:---------:
0.750
0.767
0.783
15. '32:
7.96:
o. 00 :
3'3, 8
23. '3
8. (l
57•35. 1
5735.6
5660.6
5878.E.:
5818.9:
5743.6:
41.78 282.25
41.65 : 282.24 :
41.49 : 282.23 :
POND -2 Version: 5.20 S/N:
EXECUTED: 04 -16-1996 16:40:33
Page 4
Return Freq: 25 years
****************** SUMMARY OF ROUTING COMPUTATIONS ******************
Pond File:
Inflow Hydrograph:
Outflow Hydrograph:
CSPRO-D .PND
CSP25D .HYD
CSP25DO .HYD
Starting Pond W.S. Elevation = 277.57 ft
***** Summary of Peak Outflow and Peak Elevation
Peak Inflow = 135.34 cfs
Peak Outflow = 41.97 cfs
Peak Elevation = 282.27 ft
***** Summary of Approximate Peak Storage *****
Initial Storage =
Peak Storage From Storm -
Total Storage in Pond =
0.00 ac-ft
4.08 ac-ft
4.08 ac -ft
*****
POND -2 Ver-s i o:•n: 5.20 SIN:
Po:•nd File:
Inflow Hydrogr-aph:
Outflow Hydrograph:
Peak Inflow =
Peak Outflow --
Peak El evat i•:•n =
0 15 30
CSPRO-D .PND
CSP25D .HYD
CSP25DO .HYD
135.34 0: f s
41.'37 0: f s
282.27 ft
45 GO 75 '30 105
Page 5
F.'.etur-n Freq: 25 years
EXECUTED: 04-16-1'3'36
16:40:33
Fl ow (o: f s)
120 135 150 165
.------:-----:-----:-----:-----:-----:-----:-----:-----:-----:-----:-
. 1
.12
~~
. 14 y~
y~
.15 :"!~
:"!~
.17 :'!~
..,.
·'
• 1 '3 ~/~
y~
.2 x
~I~
.22
.24
.26
* ·IE-
*
* * *
* *
*
*
*
*
*
*
* *
x *
. 27 y~
. 2'3
. 31
.36
.37
• 3'3
. 41
.43
.44
• 4€,
TIME
(hrs)
:1; File:
* File:
't: ·'
~I~ .
CSP25DO .HYD
CSP25D .HYD
G.1ma :1; =
Qma~; =
42.0 o:fs
135.3 o:f s
*
*
* ·IE-
*
*
* *
* ·IE-
*
* * ·IE-
* ·IE-
*
* * *
*
*
*
POND-2 Version: 5.20 S/N:
EXECUTED: 04-16-1996 16:40:33
Page 1
Peturn Freq: 10 years
**************************************
* * * POUTING FOP SUBWATEPSHED D,F,G,H *
* COLLEGE STATION *
* ·l!-
·K·
*
*
* **************************************
Inflow Hydrograph: CSPlOD .HYD
Pating Table file: CSPPO-D .PND
----INITIAL CONDITIONS----
El evat ion -277.57 ft
Outflow -0.00 cfs
Storage = 0.00 ac -ft
GIVEN POND DATA
INTEPMEDIATE ROUTING
COMPUTATIONS
:ELEVATION
(f t)
---------
277.57
278.00
279.00
280.0(l
281.00
2 82.00
283.00
284.00
OUTFLOW I ST OF.: AGE I
(cf s) (ac-ft)
--------------------
o. 0 0. 000
1. 0 0.001
3. 0 o. 1 c;o
7. 0 0.710
21. (l 1.510
3'3. 0 3. 150
50.0 6. 5'30
60.0 11.410
I
I
I
I
28/t
(c fs)
2S/t + 0
(c fs)
------------:-------------:
0. 0
1. 5
232.3
1030.7
21'32. 1
4572. '3
9566.8
16564.0
0. 0
2.5
235.3
1037.7
2213.1
4611. '3
'3616.8
16624.0
Time increment (t) = 0.017 hrs.
POND-2 Version: 5.20 S/N:
EXECUTED: 04-16-1996 16:40:33
Pond File: CSPRO-D .PND
Inflow Hydrograph: CSP10D .HYD
Outflow Hydrograph: CSP10DO .HYD
INFLOW HYDROGRAPH
TIME INFLOW :
C:hrs) C:c fs)
:-----------------
0.000 o.oo
0.017 7.22
0.033 14.45
o. 050 I 21 • b 7
(l. 06 7 28. '30
o. 083 36. 12
0.100 43.35
0.117 50.57
0.133 57.79
0.150 65.02
0.167 72.24.
o. 183 7'3. 47
0.200 86.6'3
o. 21 7 '33. '32
o. 233 1 01 . 1 4
0.250 108.36
o. 26 7 115. 5•3
0.283 122.81
0.300 122.81
0.317 122.81
o. 333 122. 81
0.350 122 .81
0. 36 7 122 . 81
0.383 122.81
0.400 122.81
0.417 122.81,
o .4 33 122.81:
0.450 122.81:
o. 467 122. 81:
0 .483 115.59:
0.500 I 108.36:
o. 517 101. 14
o. 533 •3 3. '32
o. 550 86. 6'3
0.567 7'3.47
0.583 72.24
0.600 65.02
0. 617 57. 7 •3
0.633 50.57
0.650 43.35
0.667 I 36.121
0.683 28.90:
0.700 2 1.67:
0.717 14.45:
0.733 7.22:
I1+I2
<i: f s)
7.2
21. 7
36.1
50.6
65.0
7'3. 5
'33. '3
108. 4
122.8
137.3
151.7
166.2
180.6
1'35. 1
20'3. 5
224.0
238.4
245.6
245.6
245.6
245.6
245.6
245.6
245.6
245 .6
245.6
245 .6
245.6 I
238.4
224.0
2(>'3. 5 t
1 '35. 1
180.6
166.2
151.7
137.3
122.8
108.4
'33. '3
7 '3 . 5
65.0
50.6
36. 1
21. 7
Page 2
F.:eturn Fre q: 10 years
ROUTING COMPUTATIONS
28/t -0
(i:fs)
o. (l
5. 1
24 .4
57.5
104. 3
164.4
237.8
324.8
425.2
538.8
665.7
805.6
'358. 4
1122.6
12'37. 0
1481.4
1675.4 I
1878. '3
2084.7
2286 .5
2485.3
268 1.2
2874.1
3064.1
3251.3
3435.6
3617.2
37'36. 1 I
3'372. 3
4138.7
4288 .4
4421.6
4538.6
4EAO. 8
4728.1
4800.6
4858.4
4'301. 6
4930.2 I
4•344. 3
4944.0
492'3. 3
4900.2
4856. '3
4799.4
25/t + 0
C:i: fs)
0. 0
7.2
26 .8
60.5
108. 1
15'3. 3
243. '3
331.7
433.1'
548.0
676. 1
817.4
'371. 8
1139.0
1317.7
1506.5
1705.3
1913.8
2124 .5
233(>. 3
2532.1
2731.0'
2'326. 8
311'3. 7
330'3. 7
34'36. •3
3681.3
3862.8
4041.7l
4210.7:
4362.6:
44•37. '3:
4616.6:
471'3.2:
4806.9:
4879.8l
4•337. '3:
4'381. 2:
5010.0l
5024.ll
5(>2 3. 8:
500'3. 0:
4'37'3. 8:
4 '336. 3:
4878.6:
OUTFLOW ELEVATION
(i:fs) (ft)
0.00 277 .57
1.04 278.02
1. 21 278 . 10
1.50 278.25
1. 91 278. 45
2.43 I 278.72
3.04 279.01
3.48 27'3 .12
3. '3'3 27'3. 25
4. 56 27'3 . 3•3
5. 2(> 27'3 . 55
5.'30 279.73
E,. E, 7 27'3. 92
8.21 280.0'3
10.33 280 .24
12.58 280 .40
14. '35 280. 57
17.44 280 ,75 I
1 '3. •35 280. '32
21.88 281.05
23. 3•3 281 . 13
24.89 281.22
26.36 281.30
27.80 281 .38
2'3. 23 281. 45
30.63 28 1.54
32.02 281.51
33. 38 281. 6'3
34.72 281.76
35. •3•3 281. 83
37. 13 281. '30
38. 14 281. '35
3'3, 01 I 282, 00
39. 2 4 282. (>2
3'3. 43 282. 04
3'3. 5•3 282. 05
3'3. 72 282 . 07
3'3. 81 282. 07
39.87 282.08
3'3. '31 282. 08
3•3. '31 282. 08
3•3. 87 282. 08
39.81 282.07
3'3. 71 282. 06
3 •3. 5'3 282 . 05,
------------------------------------------------------
POND-2 Version: 5.20 S/N:
EXECUTED: 04 -16 -199 6 16:40:33
Pond File:
Inflow Hydrograph:
Outflow Hydrograph:
INFLOW HYDROGRAPH
TIME
(hrs)
INFLOW :
(cf s)
CSPF.'.0 -D . PND
CSF'lOD .HYD
CSP10DO .HYD
I1+I 2
(c f s )
Page 3
Return Freq: 10 years
ROUTING COMPUTATIONS
2S/t -0
(c f s)
28/t + 0 : OUTFLOW :ELEVATION:
(c fs) (,:fs) (ft)
:--------:---------: :---------:------------:-----------:---------:---------:
0.750 : o.oo: 7 .-, I
• L I 4727.8 : 4806.6: 39.43 : 282.04 :
POND -2 Version: 5.20 S/N: Page 4
EXECUTED: 04-16 -1996 16:40:33 F.:et urn Freq: 10 years
****************** SUMMARY OF ROUTING COMPUTATIONS ******************
Pond File:
Inflow Hydr ograp h:
Outflow Hydr ogra ph:
CS PRO ·-D . PND
CSPlOD .HYD
CSP10DO .HYD
Starting Pond W.S. Elevation = 277.57 ft
***** Summary of Peak Outflow and Peak Elevation *****
Peak Inf 1 O:•W = 122.81 0: f s
Peak Out flow = 3'). '31 o: fs
Peak El evat i o:•n = 282.08 ft
***** Summary of Approximate Peak Storage *****
Initial Storage =
Peak Storage From Storm =
Total Storage in Pond =
0. 00 ao:-ft
3. 43 a•:-ft
3. 43 ao:-ft
. 1
. 1 ·-:· ....
. 14
. 15
. 17
. 1 '3
. 2
. .-.. -,
~...::.
. 24
. 26
. 27
. 2'3
. 31
. r').-,
~ . .::.
. 34
. 36
. 37
. 3'3
. 41
. 43
. 44
. 46
J~
*
POND -2 Ve rs i on : 5.20 S/N:
Po nd File: CSPRO -D .PND
Inflow Hydr ogra ph: CSP10D .HYD
Olltf low Hydrog raph: CSP 10DO .HYD
P eak Inflow = 1 22.81 0: f s
Pe ak Outflow --3'3. 91 o: fs
Pe ak Elevation = 2 8 2 .08 ft
0 15 3 0 45 60 7 5 '30 105
Page 5
F.:etLtrn Freq: 10 years
EXECUTED: 04 -16-1996
16: 40: 33
Flow (o:fs)
120 135 150 165
.------:-----:-----:-----:-----:-----:-----:-----:-----:-----:-----:-
-I
I ~; * I y~ ·If-I
I y~ * I
I y~ * I
~/~ *
~/~ *
y~ *
y~ *
:"!~ * x *
~I~ *
>'~ ·If-
)'~ -M·
~~ *
)'~ * y; * y; * y; *
~; *
)'; * --I
I y; *
)'; * -I
I :-t; * y; * --I
I ~1; * ;-,; *
~1; * y; * ~1; ·If-
'· y; *
~1; -M·
...,. ·If-
y; *
~,; ·If-
y; -M·
y; ·IE-
~1; * y; * y; * y; *
~1; *
~1; * ~1; *
TIME
(h rs)
File: CSF'lODO . HYD Oma>-: = 3'3 . '3 0: fs
File: CS P10D . HYO Qma ~; = 1 ·-··-· .:. ..;.'.. . 8 0: f s
POND -2 Version: 5.20 S/N: Page 1
EXECUTED: 04-16-1996 16:40:33 Return Freq: 5 ~ears
**************************************
* * * ROUTING FOR SUBWATERSHED D,F,G,H *
* COLLEGE STATION *
*
*
* **************************************
Inflow Hydrograph: CSP5D .HYD
Rating Table file: CSPRO-D .PND
----INITIAL CONDITIONS----
Elevation = 277.57 ft
Out f 1 r:rw = 0.00 cf s
Storage -0. (l(l ac -ft
GIVEN POND DATA
INTERMEDIATE ROUTING
COMPUTATIONS
:ELEVATION: OUTFLOW
(ft) (cfs)
STOF.:AGE
(ac -ft)
:--------- -------------------
277.57
278.00
27'3. 00
280.00
281.00
282.00
283.00
284.00
o.o
1. 0
3.0
7.0
21. 0
3'3. (l
50.0
60.0
0.000
0.001
0.160
0.710
1.510
3. 150
6. 5'30
11.410
2 S/t
(c fs)
2S/t + 0
(c fs)
:------------:-------------
0. 0 0. 0
1. 5 .-. C" ..::.. u
232.3 235.3
1030.7 1037.7
21 '32. 1 2213. 1
4572. '3 4611. '3
'3 566. 8 '3616. 8
16564.0 1E,624.0
Time increment (t) = 0.017 hrs.
POND-2 Version: 5.20 S/N:
EXECUTED: 04 -16-1996 16:40:33
Pond File: CSPRO -D .PND
Inflow Hydrograph: CSP5D .HYD
Outflow Hydrograph: CSP5DO .HYO
Page 2
Return Freq: 5 ~ears
INFLOW HYDROGRAPH ROUTING COMPUTATIONS ------------------------------------------------------------------------
TIME
(hrs)
INFLOW
(o:fs)
:-----------------
0.000
0.017
0.033
0.050
0.067
0.083
0. 100
0.117
o. 133
o. 150
o. 167
0.183
0.200
0.217
(>. 233
0.250
0.267
c). 283
0.300
0.317
(>. 333
0.350
0.367
0.383
0.400
0.417
0.433
0.450
0.467
0.483
0.500
0.51?
0.533
o. 550
0.567
0.583
0.600
0.617
0.633
o. 650
0.667
0.683
0.700
0.717
0.733
o.oo
6.41
12.83
19.2 4
25.66.
32.07:
38. 4'3:
44.90:
51. 32
57.73
64.15
70.56
76.97
83. 3'3
8'3. 80
96.22
102.63
10'3. 05
109. 05
10'3. 05
10'3. 05
109.05
10'3. 05
10'3. 05
10'3 o 05 I
10'3. 05
109.05
109.05
102.63
•35. 22
89.80
83. 3'3 I
76. •37
70.55
EA. 15
57.73
51. 32
44. '30
38. 4•3
32.07
25.65.
19.24:
12.83:
5.41:
o.oo:
Il+I2
(o:fs)
28/t -0
( ·= f s)
28/t + 0 : OUTFLOW ELEVATION
(o: fs) (o:fs) (ft)
---------------------:-----------:------------------
6.4
l '3. 2
32. 1
44. •3
57.7
70.6
83.4
'35. 2
10'3. 1
121. •3
134.7
147.5
160.4 I
173.2
186.0
1 '38. 9
211. 7
218 .1
218.1
218. 1
218.1
218 .1
218 .1
218. 1
218.1
218. 1
218 . 1
211 .7
198. •3
186.0
173.2
150. 4
147.5
134.7
121. '3
10'3. 1
•35. 2
83.4
70.5
57.7
44. •3
32. 1
1 '3. 2
5. 4
o.o
4 ':.> . ....,
2 1. 2
50.4
'31. 7
144. '3
20'3, 8
286.6
375.4
476.0
588.2
712. 1
847.4
'3'34. 0
1150. 1
1315.0
1488.6
1570.4
1854.3
2C>33. 7
22 <)'3. 3
2 382.1
2552.4
272(>. 2
2885.4
3048.1
3208.4
3355.3
3515.5
364'3. 8
375•3. 5
3874.7
3965.7
4042.7
4105.0
4155.5
41'31.'3
4215.0
422 5.1
4222 • .:.l
4207. 1
417"3. 4
413'3. 4
4087.5
40 2 3.7
o. 0:
6.4l
23.6:
53.3
95.3
14'3. 5
2 15.5
2'3 3. 2
382. '3
484.4
5•37. 8
722. '3
85'3. 6
1007.7
1167.2
1336.2
1513.'3
1700.2
1888.5
2072.4
2251.8
2427.4
2600.2
2770.5
2'338. 3
3103.5l
3266.2:
3425.5l
3578.0l
3714.3:
3835.8:
3'342. 7
4035.1
4113.3
4177.5
4227. '3
4264.7
4288.1
42'38. 3
42'35. 5
4280.1
-=l252 . C)
4211.4
4158.7
40'33. '3
o.oo 277.57
1.03 278.02
1.18 278.09
1.44 278.22
1.80 278.40 I
2.26 278.53
2.83 278.92
3. 2'3 27'3. 07
3.74 279.18
4.24 279.31
4. 81 27'3. 45
5. 43 27'3. 61
6 • 11 27'3 o 78 I
6. 85 27'3. 96
8 o 54 I 280. 11
10.55 280.25
12.67 280.41
14. 8'3 280. 56
17.13 280.72
1 •3. 32 280. 88
21.29 281.02
22.61 I 281.09
23. '31 281. 16
25.18 281.23
26.44 281.30
27.68 281.37
28. '30 I 281, 44
30.11 281.51
31 . 24 281 • 57
32.27 281.63
33.18 281.68
33.98 281.72
34,67 I 2 81,76
35. 2E. 281 . 7•3
35.74 281.82
35.12 281.84
36. 3•3 28 1. 86
36.57 281.87
36.65 281.87
36.63 281.87
36. 51 281 . 86
35.30 281.85
36.00 281.83
35.60 281.81
35. 11 2 81 • 78
------------------------------------------------------
POND-2 Version: 5.20 S/N: Page 3
EXECUTED: 04 -16-1996 16:40:33 Return Freq: 5 years
****************** SUMMARY OF ROUTING COMPUTATIONS ******************
Pond File: CSPRO-D .PND
Inflow Hydrograph:
Outflow Hydrograph:
CSP5D
CSP5DO
.HYD
.HYD
Starting Pond W.S. Elevation = 277.57 ft
***** Summary of Peak Outflow and Peak Elevation
Peak Inflow = 109.05 cfs
Peak Outflow = 36.65 cfs
Peak Elevation -281.87 ft
***** Summary of Approximate Peak Storage *****
Initial Storage =
Peak Storage From Storm =
Total Storage in Pond =
0.00 ac-ft
2.94 ac-ft
2.94 ac-ft
*****
. 1
. 1~ .k
. 14
. 15
. 1 7
. 1 9
. ~ 4
~~ . kk
. 24
.2b
. 2 7
. 29
. 31
.32
.34
. 36
. 37
. 3'3
. 41
. 43
. 44
. 46
x
*
POND -2 Version: 5.20 S/N:
Pond File:
Inflow Hydrog ra ph:
Outflow Hydr ograp h:
Peak Inflow -
Peak Outflow =
Peak Elevation =
0 15 30
CSPRO-D .PND
CSP5D .HYD
CSP5DO .HYD
109.05 c f s
36.65 c fs
2 81.87 ft
45 60 75 90 105
Page 4
Return Freq: 5 years
EXECUTED: 04-16-1996
16:40:33
120
Flow Ccfs)
135 150 165
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TIME
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File: CSP5DO . HYD Qmax = 36. 7 c f s . HYD Qma x = 109. 1 c f s