HomeMy WebLinkAboutDrainage Reports - 05/03/1991• • 0
3 rc�su6�/G/2�
Final.
Approved Report
STORM DRAINAGE REPORT
FOR
LOT 1, SPIRIT OF JOY LUTHERAN SUBDIVISION
PREPARED FOR
SPIRIT OF JOY LUTHERAN CHURCH
C/O ROBB, BRENNER & BRELIG
PREPARED BY
STEWART & ASSOCIATES, INC.
FEBRUARY 18, 1991
REW3ED 3lze ,?/
r{EV15ED ¢l/q IT
I • •
•10
SITE LOCATION AND EXISTING CONTITIONS
The Spirit of Joy Lutheran Church site contains 4.25 acres, and is
located at the northwest corner of Harmony Road and Lemay Avenue. The site
is platted as the Spirit of Joy Lutheran Subdivision. The site is located
in the McClellands Drainage Way. The site drains to the south into a
previously constructed ditch, which is the outfall ditch from the detention
pond systems constructed in Whalers Cove. This ditch drains from west to
east across the Spirit of Joy Lutheran Church site, then east under Lemay
Avenue, then south under Harmony Road, to an outflow ditch which goes
southeast across the Oak Ridge development. The prevously designed flow
quantity under Harmony Road and into the Oak Ridge development is 55 c.f.s.,
although our calculations show the pipe will carry 61 c.f.s.
PROPOSED DEVELOPMENT
We plan to allow the runoff from the Spirit of Joy Lutheran Church
site to go undetained into the outflow ditch, so that it can be carried
downstream before the major flows from the upstream development reach the
site. Our calculations show that the 27" X-44" pipe under Harmony Road
will carry the maximum outflow from the Whalers Cove detention pond, along
with the 100 year developed runoff from the -church site, the runoff from
Lemay Avenue, and the runoff from Harmony Road.
The existing site and developed site runoff quantities are calculated
on sheets 2 and 3 of this report. The developed site takes into account
the planned future expansion of the building and parking lot. The runoff,
from the proposed development shall be directed to the southeast across
the site, so that no additional runoff is allowed into the Whalers Cove
swale which lies just west of the site.
The 100 year runoff from the developed site is 18 c.f.s. after 14
minutes. This quantity can be easily carried by the existing ditch and
pipe system, and since it will peak before upstream flows reach the site,
there will be no problem caused by the undetained runoff.
The offsite flows consist of the outflow from the Whalers Cove detention
pond which crosses the south edge of the property in an existing ditch,
the Lemay Avenue runoff which is picked up by existing catch basins on each
side of the street, and the Harmony Road runoff which drains to the existing
ditch across the south edge of the property. There are no other offsite
flows onto the property. Sheets 4 and 5 show the quantity calculation of
these offsite flows.
Sheets 6 and 7 of the calculations show the capacity of the 27" X 44"
pipe under Lemay and Harmony, and the total runoff which will be directed
to this pipe.
Sheet 11 is a vicinity map showing .flow directions, and sheet 12 iSit�ky
6
the site grading and drainage plan. llllln,
1 D" b.
Phil Robinson, P.E. & L. S. 4 5 0 2
p�'lF � F CCvll :•o�
•
COMPUTATIONS.
Stewart & Associates, Inc. 214 N. Howes St.. Ft. Collins, CO 80521 .(303) 482-9331
By: Date 4Z411 Client: -5X2ir-4 of Tay t-V.L�(?f" —Sheet No. 2 of
Chkd By: Date— Projec�:f A/ e �%/ Zee lqo'- ky 7
Subject 14 l_,Io r)ccl -S-) v SiiT-uno-4
:z
0
1
rc�Uo. ,00
-
5-3
?
L
Cl i')
i j i
I i- I
116
--
IT.
1.2 0 C_
5"
�COMPUTATIONS*
Stewart & Associates, Inc. 214 N. Howes St. Ft. Collins, CO 80521 (303) 482-9331
BY: P) K Date z 9 Client,:�2icli Q4 --Seel vf6errn Civ-CA Sheet No: 3 of 17
Chkd By: —Date cof'_ Le?mov4 1'or&Ar
Subject S70rrn Drainage Si -Le rv/v� 5AC2
0' is
J
/101 7
dk
r:
two; rd z k 0.
10, F
S.
I
I
i
A
l..i
i
0
COMPUTATION.
Stewart & Associates, Inc. 214,N.,Howes St. Ft. Collins, CO 80521 (303)482-9331
By: P11Z Date -37/Zi) Client: Sri'ri-L OE!_T07 C/A er--';A Sheet No. 4- of Z
Cbkd By: —Date Project:-L�-' /Vtt/ or Lel-leAkIll 4- Pcrr/,,kav
Subject (94TS j 4e W_r T(_G7 kA/A CA Ie[_S CO t/ e
• EXIS I G_
I i ` 5ev
14e;-cQ )uYr 10.(-
14 e 0. iJ- 10.
ley rclv
fly r1 i PI�e.I..G111Gir�-
.0
i 13, �14
v 0 4 � �4-1!x 3..7 __1
j
2-!
i 7
)--,)e e-e' To en 0(b0^1
i I I ,�
be en loh d' t' A
— 71IiFi'
onus
WE
lmmpA-
Ism
6'L
e
COMPUTATIONS. •
Stewart & Associates, Inc. 214 N. Howes St..Ft. Collins, CO 80521 (303) 482-9331
By: P177 Date 3 Z 9 Client: . Wyr-i% 4- Spy L� herah Sheet No. 5- of_(Z _
Chkd By: Date Project: S1 Le W r-OC Lelna /far o�
Subject 0i�r ]7rainGSe EldW5 /h LeMGy ✓e J, Narn'd^y Tzd
LEA:M,,q VF-%I)VPE I! — .... V.%B i'f'. -- --- - f �✓�t��' 01'yt ! i !
A re. — 9Zo x M3 L355Gp; oi.Y1. s 1V
OZOX s A o .15Jt( zv xtx_
ca osi .__3. __ .._ 2 .
Co
! .
�Z G III iQ6 2 .. / 2-.. .L
l I !
EMlta j�i/F_NUE ,— I_ R 2 Pi W L.f_ 0 a l arIIA0
%area 920 ( 3�daU . 9 L/ { Z y7 I
j920 `
m OSI(920 3 x0 S t 9Zv B�!
p ' I I I f 3 OG I I I,
Q2- C_ - o. z 0,L7 9 ¢ LIY c F�.
I
�IuO =' C c1, i '; C 1) 7 0_._ S 9 fir
i
1 I
If
i I i
W )),1 es Cove; /LUNY.
a = 3Go u 3 Iz29i01s
c O>" PjOSI �C G - I L 3G03 To Z}F � I X �! S/ i i 5Q 91 i
I T 7 — - --. .
� 1, �� I: I i- .I 5 0��� � I I
I
6..28 — --� 23{C_�5I
Qra
� I .
QIoG Cf GIA / SI 0,vo�) 50� . _ 2 -) - _ O.YI c�s
_I_..._I i
i
I �
COMPUTATIONS
Stewart & Associates, Inc. 214 N. Howes St. Ft. Collins, CO 80521 (303) 482-9331
By: 0 L Date LClient: =5?L4 y Sheet No. rp of 17—
f
Chkd By: —Date Project: 514-e IV%,\l car. Lema,_YNGiMUhy
-
Subject
0 -� 4-4- " x 2.7it R C p 1) r)
1pe
41" Z7
7
c'-o'pa( C I r%. v ft�
'lost. e,,4 prkcg
Ae i 57. 61 _Z_
JL"
-7.
Gaa
L;
(a C__ I e,4- 14
0
T)7 e r-;f 4�9 r e-
i 0 11 f i
Ie
0 W c_- ve cj�
k
. I I
r �.,o I? il al( 1 Oak!
I - C}-11'11_c I V
0-
el_ ei-_4
I
J 7.1/
or
17 0.067
t
COMPUTATIONS
Stewart & Associates, Inc. 214 N. Howes St. Ft. Collins, CO 80521 (303) 482-9331
By: P)IR Date3h-L) 9L-Client: 11-4 o-i Jcl [v)-4er-aln SheetNo. -7 of
Chkd By: — Date— Project: AI cor Lel%,a� 4, He-xl-t*^ &r,
Subject 7_04c. I ry n 0 4T 10 "X 2-7
Pipe u
vn
0 �roM..i wl,a1�1�_'/.Vvrch is! �e I=� iz19.2c�f
r
I
WO vr-;. I rL, k-� oi--Hrl
J r__
4-
-4- 00
100
i� IL i i 0, 9 C_FS
it
Iva 2 rJ5
I L p Aly'
•� ••
COMPUTATIONS
Stewart & Associates, Inc. 214 N. Howes St. Ft. Collins, CO 80521 (303) 482-9331
By: 21 R Date 3 --'�Client: Sof C L !i . Tpy LLAerol n Sheet No. cY of f
Chkd By: Date Project: S! �G a} ' N ✓ GU►. /�Mav 4- jq oriMGnY
/ 11—
Subject GGt77Gtcl��J off' pan in Drain Di)cn A. d 6C,7LC�, 30srnt
P.I
3 I f I
I i
Area s �� C�J Iu. I _ 0.!
�`;
O' e I
2
L, l
VI-0
i y ).64
64 80 j �S ILiQ V.V
I i � I � i� Mo �I I 'I I v'I� I � i •
f
I.cJ5
GG( irr ;i�
,. oo; yr �l o
!Iili� �''
. l
G,4�.9GI7Y OF EXISTING DI?�tN dr<' ^t c}1 ! I�LUN&-;S. Sipe
i I ....;
ZO�I 33
z i
6
�S 1� „ I . R iS z - p (1'3i�� (.005)1 _ 4.2 p
a9- S,,
�F� j-
,
_I
Ca c<�i��yi o• �1,4,� Icc��'e�i-� �lx l _ i� ,0.��vrr� �ondi�i o�' •CLe>�ayl
From.F19Jre S- the ca�ci�I J�'asi,� 'wild i h,cue'r� cd acid o /
I.S eTs Pe-�i'oT oPeni�S G1- �/IS 4�� SG�> = ¢, �4s
'!r> ea�i Io 0 the Iasi-- and laves {-
srjEs a leror a �� �s,.8Uil� o�' •II+C IU(/ yrl �lu�.
0 .00
COMPUTATIONS .
`. Stewart & Associates, Inc. 214 N. Howes St. Ft. Collins, CO 80521 (303) 482-9331
By: PM Date-4--h.7) r 1 Client: -5VN-& oEJoti L(A era h Sheet No.of I Z
Chkd By: Date Project:
Subject
PARFCING L0T, 1
o
O
$. n/orlheasf: parr 'rj�, �orrl (4)%ure Fully de✓elofied)
Arec,...=i 0.93if1u, i f 1 0•B. L/= 2 � SIvPe_
min i I ! I !
GCz= G1i4 =(0,8. {'2' U.9j� l 86!�fr
Quo = Cl A L... �G88J (I C .i0.•� Y 7 _ ...1..3. 3 !cff i ✓/
G r�— i0 1� l o7- e✓e/0 e�
G %U /c; ic'-_ b 95 i L :/100� iloPe _
')C10110.7 'c�S
I
I,
tn/esf cr� aF /Qf c/' e✓ela/gec)
f'rr-ec. P/ 4 k4� 35�6 Sloe = 1
ee),
G1iAoleo C�U. z; Cis
;
I i i
i
I
I
i
i
0
COMPUTATIONS
Stewart & Assoclates, Inc. 214 N. Howes St. Ft. Collins, CO 80521 (303) 482.9331
By: Date-4 Client: 42)'(i% el Tay L#4eraH Sheet No. /0 of JZ
Chkd By: Date Project: S��G a t✓ co ,n a�i�on
Subject sWGIe- A)On a eas{ s)rie of- ark nG 1of �abna ,ves�si�e Lento/)
�n/o SCALE)
13LVEFIN COURT
------------- T-
3
tij
rp
Exis-r 4' cr3 OTC
S. LEMAY
EXIsT 4' cQ
U
EX I STl N G- —1�rI
DriFIIN 171TGy
O N F
GIfVFZG�-J 517E
FULL✓ ��- = 4-.6 cis
II
a
o
DEVELOPED GA c 6.0 cfstoo
I
[Y
18.6
Ex15T
x
_
.
F
•� i � Q
c I ROLE
a
2
I LL� o
Ia
Ia �
Y r
Q
2
O
SHEET I ( of )Z
ADDITIONAL_ Z
SIDEWALK EASE
J �. I NOO'OS'OO�E � SPO.0O'
9' u/ili/Y MJeRlm
I /
DRAIN swA LF
SRC THwT NO
�,'
FROM T
F
AIN^TWnp05 COVE
'
N ND�
1
PIV15E m
FLOOR'-
avlLwuD
PLIFIS S 6UILDING a e*'
FL R•¢990.� 1= a�
RQ
Z1 e
Do LL
J OL ei ? Y rq
nJw
_ \ RLMOVE
- JIRA \ s w
�
.�yy.J111� /Vw VlxLsi G�OLv—.� �- --
VN` Jv`ELSOK
Od
EXIST wLei ODIC
_MAY/MUM O[51GN T xReM
iGL. CALc' talc cfJ
(pass. CALc' 4+ cl csE
o' at5r.
�- +
T vea ;S
4 a,( � re � dap+«
CONST CONE R£TE
TRICKLG PAN
SELTiow THRU DRAINgD6_ DITCH
RLONO 40UTN DOVN"we OF SITE
(NO scALE)
PUTORe
11 � SEAL E IL�3OL
D
I
- � ���P� � ► ���I III ��I� " - ----�---%
�\j III � ti
II� .
C� 1 iq BLUEF/N COURT
_ __ 9YLSLTP eT12
1
1 � �
I
�bb GV 1 1 I f L
/ I
,p. ✓ I t
MANMOLE
wY {^ ro s = sa.x INV. SLI" PCiN H7e,6
RVmm 14.0t -QdCm - Ro" N!W B"TO 5.
\ NRN oTS SO THAT da"Na vt L07T CVRL
IS J.00.q T2D VfSi el alDew9la by AIN.Ii t i.. /
U4LIrY LIHT —
If SL IL r be C-3/RING CANYON LATC4AL OITCM
Rx j .—y /.E r �EPHON` _ (d4l L{UV 4C 410 LVr V tT Ow")— -
�_ PROPoSLO vOutR �%
C LSTLN6 CL,518 1 4111114119-�_
SOUTH LEMAY AVENUE
_______—_—__--_1. T_— __----- __—.
NO nr A
See Archi ties+s si/e plan fur dim ensiuns =�d I„c�rTonS EXISTING
m'o
el bolld%n9s and porxn
2. me mGom cover on water ter lines IS 5.5 fee h. DAov ~HOLE
N •YE
A )
,i moist✓m cover an wafer bats if 5.5 fed. /INVENT R•igo
1. 711,e exist,, drvinoge ditch located In o zo fneh easement INERT E+TI.O
LEGEND - along The .sov Mr boVndory of Nre SLte sha// Do ;'*proved o
Hre lxropI bwne, Is dd' q o /ow flow pa c/e4-' q
--'—i1B)-- 6XISTIH6 CONTOUR M a repinflny +TeK and feed♦ yYh dry lu,,J 9ra e5,
98 FINISH t.
CANTOVI{ L _ -_ - ,.,.. 1;
—:±ram- FINISH SFOT ■l.ANRTreN
—mM-- - LS 51ING tulle f autTam
1 mamm, New c°VmIUI cM WM2'/9V WTXN
J 9111 H MARK = ♦9e1. OG
HE..BY. OL /.M. AT YM CdR. L"~# HMmidow
<RO S I ON CONTROL —
l. Instill xlll fe.SR irvtn Wes% l0 ear+- acrou +ne IOUA
pore+ e4 Me stile. This .TIN -fence Isl{t be ins±oved
JVe* JOVM of the propose♦ neW a Srflewetk one i[ h0
$hay $a+ FAw L.,le Jane dralrawle d'+eh, until veyehalLon is t�sfabilShed.
Z, (ewiirlr eo:holl provide labor III; clean mudclean fail
aAd- febili fwcKpiY M{o ye ved h-eris. This shall
De done of N)e add of eocb work dsi.
p
o
o
S
to {xr
s7a) )L
-uJ{n eauu
IL N IZ
--- -"If-
Niforimom
FLOW -b+ROpGN -t
I
➢GRAINSWALE
TOO INSURE THAT NO e
_ RVNOFL FROM TNISS C p 1
SPQEWOK E 2S WM! �PRAI NnIT ON gpONDCO✓f
�I SDf WALK £q SEMFJJT �� \
n /
PNRSE i1L 9UILPjI �� FUT e
Us LLOOF e- 0.0 Po
Z
I r
IF
A
in
+I4 - ----------4 xUw e
p II U j- -I PHASE jj 69 I,OO L A +x
Ii u 3 3 FLOOR+ a))o.a
to
o /
I S! i .' it
T£ I
__� 49�� /�\✓�CPoUI ",
4�
�R- OHAI 6U,LDIN6 Ta A�
I I / L•i I \ III � .�' ,C J \G•, II
NEW <�tgtGM GNT
Raou ATCy\a INE
o WEIR I. ✓`GRANT
)o oew
vv a._a{F
li QI 4irorL.4 - '�.
+IlM� E ST Gr OIvo4
II i ,.�r< .I.,_ w �oo,,,IT
--s i1. 9 AZZ _.. _
aRix;3if>_----.�—__—
- �ExnT INLET "x
OTC I
eMi+Ac lEl 'a oSOAEYORTQ SS cix
U+LCULOTED �u+`VAUTY
4 "
,_ONST. <O ni�RETE
RICKLE G<+N -
NiN P
S ECTIO N_THRV ORAINAG! OITGH
.,LONG sQ TY eofi qA✓ Gp >t7E-
hC .cA )
<OLL
u NV b" r 82.9
c +:e3.z
RIM s 7 J_.!
55
3
BLUEF/N COURT
MANHOLE
RIM= 93.7
INVERT E.+rT. z
OJV MANHOLE
V. TO 5. =00v0
Np" Rcv• -I9.5
{{ b!1
-Ict.N VAG V.M� C1 G
-10 VTIL+^' ESMT -�
-
_uNVON LgTER AL OITCN lAGANDONC�—y
aca vicr aw <v TO s n Lnll
^'Jn+ttalplNO
e%i 70NIIi Cogs+*UTTER
SOUTH LEMAY AVENUE
S]AILIe!e.�
�
A6949,
IN
-ems
� T
NrJTES �
I.
See grcnl }ecr5 s; ie Ploy Po- dim ensons n,r mcotl ant
04 bvuo;ny, Par .9 lot.
2.
inc m^ cove on I{gea Is
,n�mv cove
Were-
n Irqe5 r5 5 4e
3.
Tte J / d n /ogre zo *,,Of of_
LEGEND -
oiuoolMe ✓ n b ,-v 7 f One $ le >-1 be r
NIIJ
---'--4759--__.
ExI5TINO CON FOUR,
ef+lo +reef e ^ d. W
Th.: a e • ,e n4 r h; be m
acne
��- EB
=1NIs.0 CONToorar
fn GI+/ I _. the 9 trees , -e e•}o vl o"O
. V /he Ctl+y. 5.i, s+cr�n
fez
L.Nis" SFOT ELELLTIOn
_ati .ra
.oleinubile5 hall be rna+ - by 4he Prrper4y owner.
Ex151ln'. .J`iT
-_
NNW 6 EIFT, _ _`I- -U K 4 M 2y✓T Mt WTTEA
EROSION co"TPOL -
/.
/nsinll IT sll4 ;cute fro.-, wes4- iD pus+- ac dr }re sov4A
TOM
DIRECTION JG STORM WATER VET'
Pdr} Oi }Ire 514e. This 5,14 fence .5 To be lnSi'a lled
-
fq@+ sop+h of the Prvyo£ed new B� z+drwol41 and it to
N*p sdf flow ,n4o "e drolno,ope d,ic A,
2.
Me coniroc+or shnll provide labor }o clean u/1 mvd
and debris iroclred onto Paved 54reri5. Ti Is .boll
be done a} Me end of ode" worn do/.
I ,
O �
h � Q
C,YISTING � Q
pRJP ?1 Mq/JHO
RMi+91 9 INVERT WEZ
LRT E78, CS
.)b.o � tii �
OLLsc
O
Q Q
bPwddtll� J
y ;
x+i i+.+I•li
CLIENT
/ -Tl .
•x11, YVYGCI
/0 01 /Q
A