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\\\\ \ \ \\\\ \ \\\ \ \\\\ \\\ \ \ \\\\ \ \\\\ 64TBC-GB h.8 FL -GB 60.57 Fo -° "YARD DRAINL
\ 252557. GRATE
\ \\ \\ \ \ \\ \\ II I ItI 60.90 TOA 1 30%7.49 INV.
\ \\ \ III
-A � sp.s� . L 61 ss
\\\ \\\ \\ \\ \ \\\ \\ II I I 61 .603 SSW
I FC#
.110 TOA
DRAIN Lo 12" AST
on
YARD DRAIN
0
2560.60 2557.60 NV. \ OA/TSV
6 T 6 TS fi-
R O P O S E D B U I L �N
\ 1 2561.25 FF
.14 / 61.
61 16_
12" NYLOPLAST \
YARD DRAIN
\ \ \ \ \ \ d.97 TSW 2560.97 GRATE
.47� TOA - 1.2 2557.38 INV. 12" NYLOPLL�1151�
13
C FFE YARD DRAYN
Oil84 FL
1.25 TS .25 TSW F6,1.75
0.75 T •.75 TOA C 61.25 TBC
I \\\ \\\ \\. \\\ \\\ \\\ \ I I I I I // o • 60.75 OS TBC
Ili � i / 60.55 FL
\ \\\ \\\ \\\ \\ \\ \\\ \ III II I 25158 96 GRATE
I y 12555.96 INV \\. �� 581961 FL GB B i. 59.2 TBC
\ 59.12 FL
GN I -7-1 59.77 TBC
\ \ I I 59.27 FL
18.00,WATERILIN
I I I
\\\ \\\ \\\ \\ \ \ \\\ \\\ 'EASEMENT I I III
o \\\ \\ \\\ \\\ \\\ \\ \\\ N I I V 25.00'
LANDSCAPE BUFFER,
IRRIGATION &
\\ \\ \ \\ \\ \\ \ I I "D SIDEWALK EASEMENT
II \\ \\
\
oit
b I I I
F SHEET IS LESS THAN 24"x 36"
IT IS A REDUCED PRINT.
REDUCE SCALE ACCORDINGLY 1
2
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III 2556 - -
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1
NOTE:
MATCH ADJACENT IMPROVEMENTS.
60.56 TBC 59.60 59.04 58.53 \ l )
60.06 FL TOA TOA TOA \
60.56 TBC 2557.76 GRATE
60.06 FL II 2554.76 INV 1 \\
FL ° 59.92 TBC-GB
n a"/° 59.42 FL -GB j .26 TBC- 58.33 TB \ \ \
V' 60.23 TBC 59.59 T 58.89 TBC 58.87 TBC-GB B \ \
3C 59.73 FL 2� 59.09 L 58.39 FL 58.327 G 57.83 FIL \\
-BC 5 15 TBC-G \ \\
FL 59.65 FL -GB 58.28 1
59.644TBC-GB 57.78 FL
60.24 Al FL -GB 59. 5 TBC . �° 58.37 TBC
58.95 TBC 58. TBC
74 FIL 59.0 FL 1 -58.45 FL - 57.87 FL 5 .21 FL- I \ \
9.82 ---
TOA
60.4T 59.95 - - - - - -
o �JOA
-co
o z ❑ TOA 58.74 o \ I \ \
2.267 I�TOA-GB
77� 00%
�s02i--�59sa--asssa.17
O GB TOC6 -GBTOA-GB �tQ---
_60.56 TOA T-- A=y T A- - - dam' - - - g 8 LIQ
61.07 TSW if
m 60.57 TOA
M _ T�\
-60. 9 TBC -- ° �-- - --
60.98 TBC 60 19 FL 59 8 TBCT 5T&T9 TBC 5 .OS TBC 5 .39 TBC i y \ 9
60 4 FL 5 .69 TBC-GB 5 .08 FL 58.29 FIL 7.55 FIL
59.19 FL -GB s 7 TBC-GB 2.00%
8.27 FL -GB
2° 2�
° -GB 9.64 TBC $7.95 TBC 59.46 TBC
60.46 FB �59.96 FL -GB 9.14 FL 558.24TBC
FL 57.45 FL uo -GB \�5
57.43 1 T \
o� 557. TBC L-GB SDC.#2 -- \
0 5 .67 TBC F
\ � N 2557.26 GRA \
5 .17 FL 57.60 TBC-GB N 2554.35 II�Vy, \ \
to 0.17 TBC-GB 59.08 `o
w 59.67 FL -GB FL 57.10 FL�GB I \ \
60.10 TBC
�s 59.60 FL
59.93 TBC
59.43 FL
59.85 TBC
SDCO
2559.71 RIM
2554.65 INV.
0 oI
64 TBIC I I 5I7.75C 57.17 FL 64 \ \
5 14 F� 57.25
59.89 59. 59.gg TBCI 1 t0�° 58.0 I ( \ \
TOC TOC 59 48 - I SD#9.53 FL \ \
Q 2557.
7.10 NV
25\\\ \\\
I
1� 5 9 FC L\ \
SD/12 \
� 88,'
/NV .
SUMP AREA 58.19 TBC
81.25'x20'x4' DEEP 57.69 FL
TOP = 2555.58 EL.
BOTTOM = 2551.58 EL.
2110 WASHED ROCK W/
FABRIC LINER ALL SIDES
20 0 20 40 60
Scale: 1" = 20'
I
3
I
I
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26.do'
EX. PER4A
DRIVE ply
20.00'
SATE LINE'
EASEMENT
4
Storm Runoff Calculations
EICU
6528-68
0
4/12/2022 m
ARCHITECTS
The following runoff calculations are based on the Ada County
IDF Curve taken from the ACHD
N G I N E E R IS
Design Manual Appendix A. Calculations have been completed
for the 100-yr 24-hr storm
event. Storm water runoff has been calculated for a fully developed site.
The calculations are as follows:
Drainage Area:
Case, Lowe & Hart, Inc. 02484 Washington Blvd.
Total Area = 1.22 acre or
53,347 flz
D
Suite 510 •Ogden, Utah • 84401
Runoff Coefficients
76% Hardscapad Area
40,514
C = 0.9
801.399.5821 • www.c ae.com
24% Landscaped Area
12.833
C = 0.2
Weighted Runoff Coefficient
C = 0.73
Rainfall Intensities:
CONSULTANT
10-yr intensity for a 10-min TOC - Pipe Capacity
1.45
in/hr
Peak RunoR:
Runoff Coefficient C =
Rainfall intensity i=
Acreage A =
0.73
1.451N./HR.
1.22 ACRES
Reeve
Q Q=
1.30 cfs
.
Pipe elzl"°:
& Associates, Inc.
Description Pipe Size Slope
Cap. (cis)
Req. Cap.
RCP 12 0.40%
2.27
1.30
Volume of Runoff for 100-year storm Event:
5160 SOUTH 1500 WEST
C = 0.73
RIVERDALE, UTAH 84405
I= SeaSelowin/hr
A = 53346.76 fl
TEL:
(801) 621-3100
Clout) = 0.06 els Due to percolation
www.reeve-assoc.com
time time i Q
Vol. in
Vol. out
Difference
(min) (sec) (in./hr.) (cfs)
(of)
(cf)
(cf)
10 600 2.58 2.33
1399
34
1365
15 900 Z18 1:97
1773
51
1722
LAND PLANNERS * CIVIL ENGINEERS
20 110, 1.61 1.43
25 1500 1.58 1.43
2141
2141
88
85
2057
2057
LAND SURVEYORS * TRAFFIC ENGINEERS
30 1800 1.51 1.36
2456
102
2354
STRUCTURAL ENGINEERS * LANDSCAPE ARCHITECTS
35 2100 1.25 1.13
2372
118
2253
40 2400 1.15 1.04
45 2700 1.04 0.94
2494
2537
135
152
2358
2385
PROJECT NUMBER: 6528-68
50 3000 1.00 0.90
2710
169
2541
55 3300 0.96 0.87
2862
186
2676
60 3600 0.96 0.87
3122
203
2919
120 7200 0.54 0.49
3513
406
3106
180 10800 0.40 0.36
39D3
609
3z94
360 21600 0.25 023
4879
1219
3660
720 43200 0.16 0.14
6245
2438
3807
1440 86400 0.10 0.09
7806
4875
2931
Gravel Sump Design:
Area 1,625 8
Depth 4 it
O N A L
eNC�
Void Ratio 0.4
Capacity 3,900 cf
6SS\
ti
Percolation Rate:
Drainage Area 1,625 s f.
C.
OF\ICE O
Q A
Perc Rate 40 mpl
Q (1 in/perc rate)'(1fU12in)'(1min/60sec)'Bot Area of
Drain
v
0,06 cis
Drainage Time 19 hre
SUMMARY:
N4 T H A N
The 100-yr storage volume Is
3,807
cubic feet
Provided sump capacity is
3,900
cubic feet
VARIES - SEE PLAN
INVERT, SEE PLAN\ PIPE EXTEND
I,�\\\ MIDDLEE E SUMP AREA
EzY 12"RCP FROM CB
EAST
CREDIT UNIO N
New
Meridian Branch
B
4909 N, Cortona Way, Meridian, Idaho
Legend MARK I DATE I DESCRIPTION
\\ \\ = ESSIISTHNO ASPHALT PAVEMENT
- _ PROPOSED ASPHALT PAVEMENT
= PROPOSED CONCRETE
OUTFLOW CURB
ISSUE DATE: 21 FEB 2022
PROJECT NO: -
N o t e : CAD DWG FILE:
DRAWN BY:
Contractor to verify ALL Existing CHKDBY:
Utility Locations, Terminations and BID & PERMIT SET
Invert Elevations.
FEBRUARY 21, 2022
N o t is e: SHEET TITLE
THESE PLANS WERE CREATED UTILIZING A
COLORS FOR UTILITIES & OTHER
INFRASTRUCTURE. IF PRINTED IN, OR
COPIED TO BLACK & WHITE, SOME LINE Grading &
WORK MAY NOT SHOW UP PROPERLY.
Drainage Plan
Elevation Datum:
Site Benchmark: ��
Found Reber & Cap Marked MSF 13550 0 Know what's ore youW. SIIEETNO:
at SouthWest Corner of Project Parcel.
® CBIlbeforeyoudig.
Elevation = 2558.922' C 10
5 �t
O COPYRIGHT- CASE, LOWE & HART, INC. ALL
Rl/ED