2007-07-16 Corrective Action Plan (Bolton & Menk)
~
.
z
<C
~
0.-
z
o
~
U
<C
w W
-1 >
-1
-
- ~ ~
> 0
~ ~ u
(Y lfJ.
Z W
w j
QJ P-t Ct:
~ z Ct:
<( 0
I--l
E-i 0
U
:=>
LL ~ U
0 E-i
lfJ.
Z
0
:r u Z
~
~
-
U
Ct:
w
Ct:
<C
Ct:
0.-
3
a..
-l
0
It:
!Z
0
0
:z
0
in
0
gl It:
.....
0
G:i z
..... -<
X :I: Cl
w (I)~II..ii!:
Cl .....-11..0
~ell..~
Z i=O~Cl
I-- ;
w ":c-in..t
W
:c
(/)
..J
~~
Ul
Zct;
50 .
ll.....<!l
UlS;!~
::EO::Ut
....!Zz-
o ':i5 0::
~U:::E20
z~8,,;:g
~""0:5::
:I:.F 1
U1f50::1t!~
z~Q~N
Qog:Ul6
h )-0
~~Ulln'f
~;;;!....~Cl~
..... -.....
z:;;>!;(~
-wO::J
j::9g
)-....0::
ca~~
,,@.....z
~OtQ
!!l~_!-
Xct;
.....ll.
!-
wzqUl
5l::J!Q~
zm.....u
)-0 .....
t::.....oo
::!~&:lz
5~l=g
(I)"'" Z 5.2
-t;:;.....fu
ZO -0
5~~o
o.3:IZ
!!!..J~<
::3:LiJwz
;~uQ
..
~
u g !1l
~ ~ fa
Ell
I~~;! ~~
~5_ ::ir::-
""g ",'"
.t&5 ~e
~
.!!'?
.<1-
a",
U'"
'"
f'
~...~
,,'"
c~?
! ~~~
-~'"
~~iile
1.:
~ j ., l;! u I~ ~ ~
ilUl... l; "6 E ul-:~:8 fl go 1!'1:
tJz~ ~ :2:1 01 L: a..:'!l,zg tn ~.g
-l:::i I :i! CI c: =ii'~ ~ :-:;;:-Cl~-'2 I ~~ ii
s..."" .S:!I! 0 g . ~ _ c: CC ,..0 ~2 Q:V
=~,!!J~ EO:: '" "-;;c!i'l'll' iiJl ,!!JIll;l:J; cilill
~ ~~ ~" 1.: 8" i'l'.....;I:.5i 1~ u6 ..... ..
~.:a b~ 0 ~o::EC,l1ti E~:6- ;2
~ _.., -. l -.... -0 "Ill"'" ""f, 1;;;0
a U"'.c~ 0-" _ 0.,.......0 o~ ~ ~ ~~ :10.,
Z
:2l
~~
~~~
~1'&l8
~~~
~=
~
-
u
~
8 ...
J: 0
"'....
3
a..
~~
db
~.~ ~
ffi~w
alt; iJi-
;i!~
Q: UJ
I.L.. 0 ...J
oo~
~i
(.).....
~
~
::c
t)
Eo-< d
......
~ z
Z ,.
rJ) -,g;
rJ) ~f1
<:: . -~
0.. ~!! lI:
:>-t o ZZ
P=l Z ~ ~~
wt dl
~ :::J ::i
z:.- CIl ~~
t.:l ~oIiI ~
~ 0
0 !! iIl!i
~ C\2 ellG Z~
ti ! ~~
~ ~ ~o
j::c.. p z':, ~!i
0 -.. O~ :~
I-:::J '"
Z 2 "z
.0 ..Is ~~
...... o i
E-t
t)
p In
~ ~
Eo-<
rJ)
Z
0
t)
I I
~~I
I-
<(
u
o
...I
t-
U
LaJ
....,
o
a:::
c..
E
a
~
...
~
~
~
!
i.
~
..
o
z
I !
I
I
I I I
I II:
i I \
! ) I (I I
11 II 0* 0 I oj 0 III ^;= l \;-
~ ~ ~ ~ ~ l~
f ~ =~ k-
" lo I ~ I I
i :
;:>,
I ~ ~
~ li~
II
I I
i I
,II
13
15
~ ~ : ~ ~ I
~ ~ ~ ~ ~ ffi ~ ~ ~ I .
~ g I T ~ !5 m R 5 ~ ~ '
i~ ~S~~i~~~..~:~ l'sj
I ~ I ~ ~ I i ~ Iii ~ i ~ ~ i I~
I I I 1 I I
I ! I - I -
: : : ,_.. ~ e j L . ~ ~!
I . I i ~ I ~ ~~
: -I Q. -,..c
I : I '-ol 5 Ii!
~1
3-
!l' ill
:J :J
i w ~
~ w ~ ~ ~ ~ w ~
~~~".5~ ~!i!z~~:ro:~~ l:l
w w~Oi:l~~a ~::I _:)fQ~a~lIJ 1=.
~ ~ ~ 0: < ~ ~ 8 Ii ~ 3 0: 2 ~ u ~ ~ a ~ a
~ ~ ; I I I I ~ I Iii i i ! liB I j ~ I i I ~ ;
! ! 1\-
~ III:
~ Ii II
ffi I.! I ~
~ ~g"s~~
z I ~ ffi z .. ~ I; ~ ~ ~: ~
~ ~ ~ ~ 3 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~.~ t ~ x ~
~ i ~ I ~ ~ ~ I ~ ~ ~ i ~ ~ I ~ ~ I I s ~ I ~
II II. ,
~".'.dii"ir'" I'
E
S
~
r.;
..!!l
.:1/
t~
=~
....
0:'"
-'
.<
..'"
L:r
9
0:
;if~
.!!
.....
!:P'
PRAIRIE RUN CORRECTIVE ACTION PLAN
STORMW A TER POND CALCULATIONS
Northerlv Sediment Basin:
Drainage Area = 10.7 Acres
Permanent Volume Required = 1,800 c.f.Idrainage area
= 1,800 c.f.lacre x 10.7 acres = 19,260 c.f.
Permanent Volume Provided:
NWL =
946
944
942
39,380 s.f.
28,711 s.f.
24,507 s.f.
TOTAL =
53,218 Cof.
68,091 c.f.
121,299 cof. (2.78 Ac.-Ft)
Roads
Driveways .
RoofTops
TOTAL =
2.10
0.80
1.91
4.81
New impervious area = 4.81 acres (Roads, roofs and driveways)
Water Quality Volume = 0.5"/12" /ft x 4.81 acre x 43,560 s.f. / acre = 8,730 c.f.
Pond surface area at 8,730 c.f. = 0.92 acre
Allowable discharge rate at 5.66 cfs / acre = 5.66 cfs / acre x 0.92 acre = 5.2 cfs
Design discharge (per HydroCAD calculations) = 0.14 cfs
SUMMARY:
Permanent Volume Provide is greater than that required: 121,299 c.f. > 19,260 cof.
Water Quality Rate Allowed = 5.2 cfs < 0014 cfs Design Rate
Drainage Diagram for Prairie Run_CAP _Final
Prepared by Bolton & Menk, Inc. 7/16/2007
HydroCAD@ 8.00 sin 002276 @ 2006 HydroCAD Software Solutions LLC
Prairie Run_CAP _Final
Prepared by Bolton & Menk, Inc.
HydroCAD@ 8.00 sIn 002276 @ 2006 HydroCAD Software Solutions LLC
Page 2
7/16/2007
Area Listing (all nodes)
Area (acres) eN Description (subcats)
4.990 61 >75% Grass cover, Good, HSG B (2S)
0.900 98 Pond (2S)
4.810 98 Roofs & Driveways (2S)
10.700
Prairie Run_CAP _Final
Prepared by Bolton & Menk, Inc.
HydroCAD@ 8.00 sIn 002276 @ 2006 HydroCAD Software Solutions LLC
Type /I 24-hr 100 Rainfal/=5.90"
Page 3
7/16/2007
Time span=5.00-20.00 hrs, dt=0.01 hrs, 1501 points
Runoff by SCS TR-20 method, UH=SCS
Reach routing by Stor-Ind+ Trans method - Pond routing by Stor-Ind method
5ubcatchment 25: 10.7 Acres
Runoff Area=10.700 ac Runoff Depth>3.51"
Tc=20.0 min CN=81 Runoff=44.93 cfs 3.134 af
Pond 2P: Northerly Pond
Peak Elev=948.40' Storage=107,783 cf Inflow=44.93 cfs 3.134 af
Outflow=1.41 cfs 0.737 af
Total Runoff Area = 10.700 ac Runoff Volume = 3.134 af Average Runoff Depth = 3.51"
46.64% Pervious Area = 4.990 ac 53.36% Impervious Area = 5.710 ac
Prairie Run_CAP _Final
Prepared by Bolton & Menk, Inc.
HydroCAD@ 8.00 sin 002276 @ 2006 HvdroCAD Software Solutions LLC
Type If 24-hr 100 Rainfal/=5.90"
Page 4
7/16/2007
Runoff
Subcatchment 2S: 10.7 Acres
=
44.93 cfs @ 12.12 hrs, Volume=
3.134 af, Depth> 3.51"
Runoff by SCS TR-20 method, UH=SCS, Time Span= 5.00-20.00 hrs, dt= 0.01 hrs
Type II 24-hr 100 Rainfall=5.90"
Area (ac)
4.810
0.900
4.990
10.700
4.990
5.710
T c Length
(min) (feet)
20.0
I nflow Area =
Inflow =
Outflow =
Primary =
CN Description
98 Roofs & Driveways
98 Pond
61 >75% Grass cover, Good, HSG B
81 Weighted Average
Pervious Area
Impervious Area
Slope Velocity Capacity Description
(ftIft) (fUsee) (cfs)
Direct Entry,
Pond 2P: Northerly Pond
10.700 ae, Inflow Depth> 3.51"
44.93 cfs @ 12.12 hrs, Volume=
1.41 cfs @ 16.04 hrs, Volume=
1.41 cfs @ 16.04 hrs, Volume=
for 100 event
3.134 af
0.737 af, Atten= 97%, Lag= 234.9 min
0.737 af
Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.01 hrs
Peak Elev= 948.40' @ 16.04 hrs Surf.Area= 86,928 sf Storage= 107,783 cf
Plug-Flow detention time= 316.2 min calculated for 0.737 af (24% of inflow)
Center-of-Mass del. time= 210.8 min ( 993.1 - 782.3 )
Volume
#1
Elevation
(feet)
946.10
948.00
948.50
Device RoutinQ
#1 Primary
#2 Device 1
Invert
946.10'
Avail.StoraQe StoraQe Description
116,985 cf Custom Stage Data (Prismatic) Listed below (Recalc)
Surf.Area
(sQ-ft)
39,380
46,074
97,139
Inc.Store
(cubic-feet)
o
81,181
35,803
Cum.Store
(cubic-feet)
o
81,181
116,985
Invert Outlet Devices
946.10' 12.0" x 22.0' long Culvert
RCP, end-section conforming to fill, Ke= 0.500
Outlet Invert= 946.00' S= 0.0045 '/' Cc= 0.900 n= 0.012
948.00' 48.0" Vert. Orifice/Grate C= 0.600
Primary OutFlow Max=1.41 cfs @ 16.04 hrs HW=948.40' (Free Discharge)
L1=Culvert (Passes 1.41 cfs of 5.07 cfs potential flow)
L2=Orifice/Grate (Orifice Controls 1.41 cfs @ 2.15 fps)
\
\
\
\
\
\
\
\
\
\
\
!;c
it>~~
Iii;<;~
~6o.:
Zlll
8~~
iJ:~;! en
a ::l~ l.IJ
~~2 ~
",jiio ~
101
o
iE
,....-- i
.'"
~
i~~
~!i~
Im~
k;ii ~
Zfi!
~g
::i~'"
...<101
"'w~l;;
frlF"'l:!
1l;15~l:l
,,,is!;'''
~<.JCoJi=
~~~~
",o<a.
!1i"g,<
",1Il~
~!.!!b15
~lll"'~
wrfllJ;:)
15wF<.J
F15~
4(;
'1
<
Z
o
t5
U.I
en
<J
~:5
~
fa;:j!3
f;l~!;;
iLS'"
~8:~
i9
;r;~
wlll~!Z
~~;~
wlllF~
..'" ~O
~O:ol"''''
o ....t;~o
z~::Ii:i~
~~~~I
~~
fil'j
"'~
~'g
~U
101 "',
lXlwa.
(a:
~~~
~lIlfl
-~~
~ III
~ e
~"'!!;
~S
::Ii'"
101'"
10
~
1
'"
101",
1:010
~1Il
~~li!
!!! Iii
a.SiS
:~~
~~j
z"
~lil~!Z
~t~
Wlll~<!
~~~~g
~~::Ii~~
~~~~I
~~
~~
~~
~s
ci'"
l!!i~
lllw8:
"'~
:;I...",
~Io
~1Il!3
l:i~~
~"iS
a. ~
lL":s
~::~
~ 8
~~e:
lll~~
~:s
~~~
~~z
:J:.:E~
d
z
z
'"
."
~ti
!!ii:l:
ZZ
",,,,
U.I
g
en
~
13
z
U.I
~
~
~
s
..
s
"
!
~
~
c
~
~
..
00
~ ? I. I
~ i .; 11 -8U...l
o U ~ oS 't 1] ".a"'ir
Z Ii. oS I 'Ii! 'Ii) t'j!1 ~ I
.; ~ ~ 1 i.l!./!
~ ~l et ; .BIll liFllf
~ 11111 t 1 1 Jl 'Ii 'I ;It!
1::.4 It:~~ 1 E1!I~'" n~11
~ Isj II ~ i~g g~ ll~~
~... i ~ ~~w ~5 -~.I
fi~, oS & ii IE t~_6
J g ~?' 'll j 1- fJ~~
Z Ii: Ii it it; i ,,~g-il
Iii e~ 8~! ~
~ . s:1 11! ! l...t Ii ~~l l
lig 11 i~ 110S II fI,II
it-I 8; IIi i;~ i~ 11:t~lt
f Ii 'il :p E l!? e ;.IIt
I~ r ~ It ~!I Ii .IIj:tliJ
I~t 11 'illlt In htJ> J
i It l1i !ll ~.9j n~ .Ill ai:t
Ii 1 I
II I !
.lJ 1 i
Uli ~ j
111.& E I
'Ii-8 ~ ~ 1
en iI ;
tj g 1 ~
;!!.~! iI
jtll I
I!J 11 1
l~i in
tli b ~
!II :~ i
I
'Ii
!
.. II -
Z 1
:!! t!
o 0 ~
. - !
~ ! I
~ 1 [J
~ ~ I
- jlili:
~ iHii - ..t~~
e; .1I~J !jj
~i~[Jj : ~ ! -Iff
~ . ~II! .... 'SU
~ f _ i ~ lj'i ; Id
~ i[i1i bJ J!.4i
~ 'Ii ill il'li f;J~l
ts !i~~ nl nUl
..;-
Iii ...
:r 0
"'",
1
~
'li
1
!
t
I
1
1j
I
i
;! II
! . 1 ~
~ ,,; i !
~ I: 1 fi
~ t t II ~I
Co) i~ 1 'li:fl
~ if It i~ .
o 'ill 11 ~l
~ :II~
8 It ~t 51
-i I
~8.
'lij
s j! - j
I 'Iii ~i! ~ 1!
'" il lit ~ g
sf g.E 'i
ii i~i ] I
II Ih $rd 1
i~ J.ll ifa 1 1
!i~ ~h i! i r
lf1IHPI ~t II
u~ !! !I II
.II!!!. 11 1$ jj
Ii .91~: t u -=1 II
In? ]d1 U' 'i.. )..
:.. In A~I.,;l J~ Ii
,
t
I
e
. .:l!
"'- ai d Q oJ ..:
". "
..
z
o
-< i
~ 1
~ ~
o 'Ii
~ 1
!
'Ii
~ J
i
I
~it
Z 01.
~ ~l
t_
:11
i fI~ ~
Ull I
I ~ I iJ~ D
~ ~ Ii! I I~ ,I
~'tl.~ : .1!J ~
!i I:;~ I ~Il ~
.UisPlhli
i: 1:1.11 Ii Ill: I.
1; t 11;) I"l~ 1,'i! ~
! .I I. ~
. !
~ ,. ii ~
iI i
!P
~ ~i il~
ii Ii 1=1
d t!1; d~
If E E ;il
Jll -, 'h
I_ 'l; &. ~
l~ II . ji II
0- Z! O1!
. [I ill!
h;!il hi
z
:s
0..
~6
~,~
c:::~. a.
liI G a.
-=J. w. a.
.... l2 3:
1.&...0 en
Ot)
z
it::::>
_D::
Ow
~
~
0..
i
d z
Z ~~
tI<-
- ~[(j
. ~;:
~ ~ ZZ
Z>. :::1.2
. .-
W ~ };it
~CIlliJ
'" au
~z
l! "',.
ra. z~
. ,. '"
C .~
~ ~o
Z III ,.
"'z
G ;c:::s
O c: '" -
== z~
L i ,.~
r C 0&2
J~ ~ffi
o ~
II)
~
1~1~13
~~
l:;:i "0
.~ t<)....
z>-t<)
:5c:t:LU
mOo::
.....I8=>
~~~
I-CJ::::t
z
8:28
a:JLU
zt<)(I)
01-1-
tnog
00
ct::!:C
LU::::t::::t
z
2
~"
jei
~.~
ZZ
::IE 2
i
i
\
\
I
:
,
I
,
I
I