HomeMy WebLinkAboutDrainage Reports - 09/14/19880
/—_1Ai Z, 7�02i
9/y/foo
STEWART&ASSOCIATES
Consulting Engineers and Surveyors
STORM DRAINAGE REPORT
PARCEL A5, FOSSIL CREEK COMMERCIAL PLAZA
The Fossil Creek Commercial Plaza is in the McClellands —'Mail Creek
Drainage Basin. At the time the McClelland Drive storm drain interceptor
line was constructed, it was determined that the maximum allowable run—
off into it would be restricted to 0.5 cfs per acre. The gross area
of Parcel A5 and the south 37 feet of Parcel A6 is 0.96 acres, including
the west half of South Mason Street.,
There is no off —site flow onto this site. The site is located at a high
point on Mason Street, and the railroad along the west side is below
the site.
Run—off from the site will run into the west flow line of Mason Street.
It then flows south to Troutman, then east across Mason in a drain pan
and then on east to an inlet into the McClelland Interceptor storm drain.
Sheets 2 and 3 of this report show detention pond and out —flow pipe
calculations.
Sheet 4 shows the proposed site construction of grading, drainage and
utility service lines.
r.
James H. Stewart
and Associates, Inc.
214 N. Howes Street
P.O. Box 429
Ft. Collins, CO 80522
303/482-9331
l of 4
6/,/)Qe
I COMPUTATIONS
STEWART&S�JCIATES
Consu](4y .3 Engineers and Surveyors
214 N. Howes St. Ft. Collins, CO 80521 (303) 482-9331
By: PIFS Date Z B8 Client: VVilkir7 5;ukl (f 0 17 -5 Sheet No. 2 of 4-
Chkd By: -Date Project: Eca Y-(f e- I A 51 37 r o -F Fo fir i relo
' Subject > To r r-1 L-/r-ca / r7 a e
Adop.
i GOHPOsi
N;
I 71
9
<-J
U�
4
5
0
F_
(IJ(
(f
IV'5
, 1�
6
J4
C liq
:7- S1.
ro
Cp48
7r OX
G' city
7V 2 0
I /95S
7,.
4F,1
0.: 78
5_� oil
i i i
I I
I 1.406
3).
C
j
0
A
02?-3
6000
i
I
! I
'
I
.i...I
!...�
�
I
I
U��
o � i
I
.
�.
��
� � I
l i l i' i
I
I I I
I i
(
I
I
I I
I(
� I � I�!
;
0o
I
I ;M
�I
I I I
'00 000
7- 0�
& C.0
J 2 3
100
COMPUTATIONS STEWART&406_20CIATES.
ConsultinS EnSineers and Surveyors
214 N. Howes St. Ft. Collins, CO 80521 (303) 482-9331
By: Date Z)?-(;)6(5 Client: 'v%ldh 1'hscl-) — Cclr7S4-, —Sheet No. 3 of_- 4-
Chkd By: Date— Project: Fbre-e,) A-5 -5, 37 of A- 6 FOSS d Cr-e(-4 rc t'c, I
Subject re't i r) a
i. pio P
4-1
L
F�
e-. A
a
► 4502
F
_J
Ral
PERSPECTIVE VIEW
SECTION AA
Vow. AA Nny..a M
NEW DRIVEWAY APPROACH DETAILS
VERTICAL CIIAB ANO GUTTER
Q
Z
0
�— 0
I. AREA of SITE: Co. 94 ocrsl (6mE)
Z ALLOV^3LE RuN-OCC a
3. VOLUME 0E7ENTION !REQUIRED: 7437 cu. P.
0. VOLUME DETEN7101.1 PROVIDED • 7S4,0 cy, 4.
S. MArIMVr POn D DEPT1/ a 1.6 44,.1 CuTLLLT PIPE
G No" V.11 Tfrt LINE ELEV^710N= 494/.10
7. OVTF4UN PIPE c 4' cJP
VOL UME
o< DF_TENTION
POND
Ca)VT4Vrt
PaCN VOLV.MC
TOTAL VOL.Mo
39. 7
0
Y40 Zoo
Z40
GIGO 1780
zoEO
++.I
IZZSD 55zo
7540
P
0
O