HomeMy WebLinkAboutDrainage Reports - 04/20/2007March 23, 2007
Mr. Wes Lamarque
City of Ft. Collins , pr ed Plans
Approved By
Date t4` '
City of Fort Collins
Stormwater Utility
700 Wood Street
Fort Collins, CO 80521 J'R ENGINEERING
A Westrian Company
RE: Harmony School Shops 4th Filing — Phase One and Lot 8, Minor Amendment
Dear Wes,
We are pleased to submit for your review and approval, this letter that describes the interim drainage
conditions for the Phase One and Lot 8 Harmony School Shops 4th Filing developments.
We would like to request that the proposed interim Swale on the Phase One revision only be constructed if the
61h Filing storm system is not constructed by the time a Certificate of Occupancy is needed for Lot 8. The
applicant would then construct the Phase One interim Swale at that time. As discussed, an escrow account in
the amount of $6,000.00 will be established to assure the work is completed if needed. Please refer to the
attached cost estimate. In addition, a note stating: "Temporary Phase One Swale only to be constructed if the
61h Filing storm system is not constructed by the time a Certificate of Occupancy is need for Lot 8" will also be
added to the Lot 8 grading plan.
Our office also requests that he Phase One flows generated by the access drive intersection in the vicinity ofthe
Harmony Road entrance be permitted to flow through a curb cut. This runoff will travel via overland flow
toward the pond in lieu of the inlet proposed on the Phase One revision. Because these are low flows, the
effects to this area will be minimal. Ultimately, an inlet will be built to accommodate these flows during the 6th
Filing construction and this will be shown on the 6th Filing plans. Please refer to attached exhibits for further
information.
The aforementioned design has been considered with provisions for safe and efficient control of stormwater
runoff in a manner that will not adversely affect the intent of the overall stormwater system. We greatly
appreciate your time and consideration in reviewing this letter. If you have any questions or require additional
information please call (970) 491-9888.
Sincerely,
JR Engineering
/rea,rty "`' S
V ......
O
3 848 me
p e, P.E.
nager
FSStONALENG
Attachments
2620 East Prospect Road, Suite 190, Fort Collins, CO 80525
970-491-9888 • Paz: 970-491-9984 • www.jrengineering.com
H
LU
Q
w
O
a
U)
H
Z
LU
U
O
w
a
W
Y4/f a
O O.
Ov
7
O O
O
LL
LU ww:
Q U)
4
lv
r f LL
O
_U
0wZ
O
o
W
(j)
W
Z
��
o :.
C7
_O
VHjUJ
wZ
�= W N
f-
W
�Os
LL
•
CX
I-
LLOO�
W
W
zUUO
—
o H�.
O
,V1
w
Q
N
W %"
w
z
Qa
W C!►
F
LL W
w
O�
�a
�Q
J
zw
O
LL
C9
mz
J_
LL
a
CO)
O
x
a
m
U)
�
_O
H
W
z
a
U)
S-
Ca
= ja
v) co
N
co
V
u
(O
f
00
a
O
N
it a
4/Aix
r �4t`, --
Nar
1 E�
6gy6q/
LOT2
1
'
HARMLWY
� / / � r SCHOOL SHOPS`
1
- / 4TH F7C/NC
'
1
/ /
1,
II I
II
Ir �
I � 1
L
1
I I \
1
1 1
I
c
1
---4962___ •
4y
REPLACE PROP, D9VC \
ENTRANCE WTR COG
4
"C56 _ REPLACE PRO. ORI'2
v _ B .e,. Sal.ENTRANCE WTN [4G\
\
\ 1 READ ORI
ENTRANCE UYWi
\
ki � _ _ _ _ _y. J'-`•ice 4 �
\ 1
T�
/ I ' Ill .� v i
• R�1
-_-.- - -_- - -_- - -,
-__�_------
_ - _____
SCH\\\
EWPLETWSL WM QME TO
BOX" SWSE ANAATER ALITY ONE
WATER STRUCTURE
TO
BE
REVISEDs, w/EMiwE
PHASES.
\I fi=R' < I
m m m ... m m m m m m .... ... m m v ®. �y\T L _ _295 � 4952
\ � m
-495
LOT 3 ,tPHASE 1
!B
HARMONY
SCHOOL_SHOPS \ _ m t93T _ ,.. -• �•• -- _ \ ` _ — -- y "
PROP. TEMPORARY -^�4 Af F%L
ORAUAGE SWALE
/ \ I
, I \ I I PROPmn IM
I 1__
^ , - --
------ III
!I
\\ INLET TO BE INSTALLEDCO WITH sIO Fxlxc
MAIM AMENDMENT CSWALE TO BE.
\\ IEMIN MAIDS
SINTERIMSTOP SSALE TO SE INSTALLED \ I 1 IE BIN LCTE STORM TIME A IS NOT
�---\ FOR LOT LEO BY 1NF TIME A [O IS NEEDED `
\` FOR LOT
R
LOT
HARAydVY —
__
SCHOOL SHOPS _ _ _ _ _ \\ PROP. SAW, M.CLE
5TH RUNG \ RM _ 49M2 A 'I
NV. W=495209 1
1 \ LENP,
ORAWAGE EASEMENT BY SEPMATE
`♦
PROP. O1NVE
ENTRANCE RI PLACE
`\�Otat
PROP. B {P-24' R
'JROF DRIVE SCHO(]Lli Kxx* PRO. pbVE
. ENTRANCE W PLACE 4TH F) M&U WIN Cat
OF Cat
—a.-_.
PROP. 2' CLIMB STOPE%`B' XAIEfI NNX
AW METER PIT
\ •\� <` PRLPBnY IIE 2' SERVICE STUB `--
\ T 2' IRRIGATOR STUB
(REFER IO BVRWATON
I \ PLANS PO DETAIL)
\ I L
-_ _--- -_
---
__w—
PRO. ELEETRC
VAIAT LOCAINNX
q
PROP, 1 SANSAN, PVC
STRAT
199510
10-
PRO. MPRM PAD
PROP. TYPE I6 Cd9,
INLET
INV. OUT-4956.
EXIST. WATER SERVICE
STUB TO BE REMOVED
(SEE NOTE ])
- REPLACE PROP.
`DRIVE ENIRAN,l _
WTN CAG
1 _
l960 ��
5`- d
RELOCATE PRIDE/ Y ( \ H'CAP RAMPS /
fT 7 G EXIST
X SERM
�G BE DI O METER XRNCES TO
_ BE DISCONNECTED 10 P MOM AND
ABANDONED LO THE REMOVED Ada CURB STEPS I BE REMOVED
/ \ A (MEN T WC IMPROVEMENTS
1 (SEE NOTE ])
1 \'I
RIV. W L.495t 89
�
i
^
1 I
1
/ PRW 120 LF-B�
PVC SAN. %PE \
PROP, ORIVE ENTRANCE !
\ A
1
PRO ]O LF S'
WATER W/BVNO RG.
-1Ss EXIST. WATER SERVICES
6 TO BE REMOVED
-, 1
(SEE NOTE I) r
/
PRO. ENTRANCE
D=R4V95
§G
I/ \O
PRO
1
PLODEL5T. 24. \
W/SLURRY�R CONCRETE
—PRO _
R
KST �
�I/I� �♦
/J.
�' m
_
.la_m
—_ ___ •� '� �' •® ,� P9OPOIIY IRWypF3�
PHASE ONE
REVISION EXHIBIT
JOB NO. 39347.05
MARCH 23, 2007
SHEET 01 OF 02
J•R ENGINEERING
A Westrian Company
2620 East Prlspecl Road,, Sufe M-Fort CoHns, CO 80525
970-49 —9888• Fax 970-491--9994 - wwwjrengreeringcom
r41p e. M[ [ R tt^FC10f W
a,. amn soul au•o,As /
M,W r Gv a ti
M l.0 f]Jra a .
Cif
�R4
ayTM
nra
u
I
I
_
--I
I
I
1
I ' t P' m •. (wr 4TR. 1
ax`w ! a'.r rts vuwr ftswu, r��°
L
e u u n,a„ asn.a,
fiu:ra t[Aufa'a
Al
l�,�z�tPpp.
is
ir�r
"' ru r •ten w xla',.'«ui
Y[ «DIY
fM[l A
x rts
.v>r rto-
(0M0
—p �I
ft[ �i lia`s�r n
1]
sums. uayr'
pIy � �MPpf[p W6[,
J(X «�li�`Aciv s
4
1
f
M
]
I
'Q,
l
I
1
1
i
1
1
I
I
• �
1
I
I
�
a
ran e'n
/
f-i
�
/
f[[ «lY[l R x. [ A.rf 1 I [ ]«M i I • V/ NxOpp[ RK al W Ir' .• •.• •"-`-+� - y u5➢aa[\� / f« «, v[R > I . « 1 Y n[[' ] I','t` J I. - I i. ••
`
��
I Ey I I I I I wP]°1 1 c—'r- •,
+��' a«'anv _ I - v'-------------------
-
t y i i. ' - csile.,s�'cssx'umltt um'•ccts us4tr, � -- .-- _--- y�� __�• �- � . _ ��� -'s uvltt � • [ .
-
sy.
� IPII -� IC
.w. -�L S r
r. '---' [s^ r --'-'' �... ,.r ) ` �.: (� // .°. is uau.o- u:,«ruw•ws ..... nPPn aal•ou. (� Ia
ly I- Tr
L id
R _
k!k y,} ,i` _ __ — — i_ — — — .— — — i o s I' t ii x if l — UE I—�—II
«x% �( _ .•• r I - - i ii 'i !
�5f
1 s S i E .� -_ ,i L•Tf i�L � i Ij bd:4v���L ! b s I�bss `, n I
_��1+,��Lj" s �tirlr�r
ev
� �a
_...--....�.--___-_ --_-__-----_--_"-_-__-_-_----'T._�--'•- --•-_ - __ ,--er _-_-x-� --:----- n_—__.= rv=_.__ -a_____�Sh,.� :-ro-,�v _r_. _ _".=a ,i `--' -n- Cams•ax s_a • r�leYsscta7-[_r am- �-i f ce-___., ET.•2_YJ-�--aI..___�-
c-r wl I iG-!z ,-Nc- . _• •__ ---------
---
an°�,ww Ax w tunov 31—-
-- -- - - - -
_ - _ _ - - _ _ - _ - _. Sat]6'19T i6.9 as'/YJ - -
--
----------------------
s
6TH FILING MAJOR
AMENDMENT EXHIBIT
JOB NO. 39347.12
MARCH 23, 2007
SHEET 02 OF 02
w/ A Westrian Company
2620 East Prospect Road, Sute 190 • Fat CoIgIs, CO 80525
x