HomeMy WebLinkAboutCC - Storm Drainage Calcs Storm Drainage Calculations
HADLER SUBDIVISION NO. 2
Meridian, ID
C�ySG
T G
P ATE
462
P.
1/16/2025
Civil Innovations, PLLC
1043 E. Park Blvd. Ste. 100
Boise, ID 83712
Phone: (208) 884-8181
www.civii-innovations.com
O
U Ln Ln U O O O O
O
D
N N N N
d rj o- c I
= O = O
O N 00
lzt O N
0 0 0 CL O - O
to O q cn O O
� to
OD ni m O O
N ) M lfl )C
C O
O a�
'N (a
Ln > > C7 > > C7
o u ® O
LL
= f6
a)
a
a) _
ro Ln u) �r L7 Ln ct
> Ql Ql N > al Ol N
0 0 0 O = 0 0 0
U I I U 11
Ln N LLU U U Q vLLi vLLi cLLn U U Ln Ln U
00 Q9 LD cm l0 (.0 O N r-I Ch Ln 00 N I, lfl
H O B t11 �' O I\ O N O � 00 00 N rH c-i N
00® a) � O r4 N O r-I 00 ® N Lr) O ci f11 O O N
II II II II II II II II II II II II
® j N = N 00 ® > �a ro P6 N N Ln V-4 Ln O O
ea 3 _ _ ri
Q U > � U > Q U > c C7 >
•L L
a -a 0 cu \ 0
to .a! � N "� � 4O ate+ V) J
-C
tin a) o @ >ao a) o
I�J
O O
v I\ I\ It O U M W to O
I\ ® 06 r1 �- 00 o Ci ri
v aJ
N N N N
a a
O ° O
O N V) CL O N V)
O O q 0 0 C?
O N O
t t
hO Lf) l0 W O 1.0
N C N l0 C rf) l0
C J J
C O
O
i-
V
N O O L7 �- ® t7
LL
Co
C Y
_ a1
0_
U l Vl Ct' Lf1 Ln GT'
> Ol Cl N > Cl Cl N Cl
O O O O - O O O O
U I U II
U LL LL LL LPL U.
LL U LL LL LL W Ln LL
v) cn v) U U U cn cn v) U U U
N
® n O 0 Ln 00 Ln O rH � ® S O N LA 00 Ln O rM-i
® ri N O O ri ® ci N O r4 N O O
II II II II II II II II II II II 11
U y. ® L L N
In
co
d > N V N O O m M V N O O
Q ai
u •> C v CJ > Q C.J > C CY >
txo� 0 bDGJ \ 0 ro
oO N O M N O
O
i .� .� L O
=
c
c O
o 4�
.N �
v CC Ln 01 v O O
CL
� O
N N N N N
_ cf Lfl _ d' cfl
= O O = O O
II II
M I�
N I.n Cn O N Ln to Ln LL
0 0 0 U V U 0 0 0 U U U
cn O ® c/7
h +' 00 O W M N r j 00 O Ln 00 lD O
C® 0A O e-i Ln m 00 0o u1 to � O d Ln cm 00 r-I * 00
N J O ri ri ri N eh J Lr) O ri 14 M CY 0Op
II II II II 11 II II 11 11 II II II
N u1 0 Ln 0 0 N to 0 Ln 0 0
t0 0 N CD a) r 0 N O 00
v O 4J j 4J
4 41
y > N 0) > a
ra h- O O
C C
ra
c
c O
O :,
u N lD d lD O
Q `j m ri M O cY
3 N r4 ri N c-I c-I lV
O
� al
f
S f6
ry N N N
0- ri n- ri
N N C�
O o = O O
II II
0 O U U U O o U U U
N O o N O O
M 4 O In O O N 00 00 "' o I® M
CP OA Ln e W 1 N I:zr bn O 00 to f LO O 00n � l r ai E
ryi
a) 00
II 11 11 II II II II II II II II II
II U cr- } it 6J �
Q } } O } }
N O -O N O
i O O L m N >
0) Q1 = > N :3
ro F— O ea O
� C
im
0
Hadler Subdivision
Pipe Sizing Calculations
DI#OS1 to SDMH #OS1
Q(25) = 0.76 CFS
Slope= 0.0029
Diameter= 12 inch
Mannings "n" = 0.012
A= 0.79 sqft
P= 3.14 ft
R= 0.25
Full Flow Capacity= 2.08 CFS OK
DI#OS2 to SDMH #OS1
Q(25) = 0.12 CFS
Slope = 0.0193
Diameter= 12 inch
Mannings"n" = 0.012
A= 0.79 sqft
P = 3.14 ft
R = 0.25
Full Flow Capacity= 5.37 CFS OK
SDMH #OS1 TO SDMH #OS2
Q(25) = 0.88 CFS
Slope = 0.0029
Diameter= 12 inch
Mannings "n" = 0.012
A= 0.79 sqft
P = 3.14 ft
R= 0.25
Full Flow Capacity= 2.08 CFS OK
Hadler Subdivision
Pipe Sizing Calculations
DI #1A to DI #113
Q(25) = 0.09 CFS
Slope = 0.0053
Diameter= 12 inch
Mannings "n" = 0.012
A= 0.79 sqft
P = 3.14 ft
R= 0.25
Full Flow Capacity= 2.82 CFS OK
DI #113 to SG#1
Q(25) = 0.18 CFS
Slope = 0.012
Diameter= 12 inch
Mannings "n" = 0.012
A= 0.79 sqft
P = 3.14 ft
R = 0.25
Full Flow Capacity= 4.24 CFS OK
Hadler Subdivision
Pipe Sizing Calculations
DI #2A to SDMH #2A
Q(25) = 1.82 CFS
Slope= 0.0089
Diameter= 12 inch
Mannings "n" = 0.012
A= 0.79 sgft
P= 3.14 ft
R= 0.25
Full Flow Capacity= 3.65 CFS OK
DI #213 to SDMH#2A
Q(25) = 3.16 CFS
Slope = 0.0475
Diameter= 12 inch
Mannings "n" = 0.012
A= 0.79 sqft
P = 3.14 ft
R = 0.25
Full Flow Capacity= 8.43 CFS OK
SDMH#2A to SDMH #2B
Q(25) = 4.98 CFS
Slope = 0.0057
Diameter= 15 inch
Mannings "n" = 0.012
A= 1.23 sgft
P= 3.925 ft
R= 0.3125
Full Flow Capacity= 5.29 CFS OK
Had ler Subdivision
Pipe Sizing Calculations
SDMH #213 to SDMH #2C
Q(25) = 4.98 CFS
Slope= 0.0057
Diameter= 15 inch
Mannings "n" = 0.012
A= 1.23 sqft
P= 3.925 ft
R= 0.3125
Full Flow Capacity= 5.29 CFS OK
SDMH #2C to Sg#2A
Q(25) = 4.98 CFS
Slope = 0.0057
Diameter= 15 inch
Mannings "n" = 0.012
A= 1.23 sqft
P = 3.925 ft
R= 0.3125
Full Flow Capacity= 5.29 CFS OK
Hadler Subdivision
Pipe Sizing Calculations
DI #3A to DI#3B
Q(25) = 2.60 CFS
Slope= 0.0107
Diameter= 12 inch
Mannings "n" = 0.012
A= 0.79 sgft
P= 3.14 ft
R= 0.25
Full Flow Capacity= 4.00 CFS OK
DI #313 to SG#3A
Q(25)= 4.64 CFS
Slope = 0.02
Diameter= 12 inch
Mannings "n" = 0.012
A= 0.79 sqft
P= 3.14 ft
R = 0.25
Full Flow Capacity= 5.47 CFS OK
Nadler Subdivision
Seepage Bed Calculations
SG# Basins High Flow Bypass Design Storm Design Flow SG Size
C.F.S.
1 1A+ 1B No 100 0.26 1000
2 2A+2B No 100 6.92 (2) 1500
3 3A+3B No 100 6.46 (2) 1000
1000 Gallon = 3.33 CFS
1500 Gallon =4.15 CFS
Hadler Subdivision
Seepage Bed Calculations
Seepage Bed#1
(in right-of-way)
V(100) DI#1A= 169.0 CF
V(100) DI#1B = 175.0 CF
V(100) = 344.0 CF
V(100)- Infiltration Volume 250.7
25%Sediment 62.7 CF
Storage Required 313.3 CF
Bed Width 10.0 FT
Bed Length 14.0 FT
Bed Depth 6.00 FT
Total Drainrock Footprint 840 CF
18" Pipe Volume 24.7 CF
Pipe Storage Volume 12.4 CF
Drain Rock Volume 815.3 CF
Void Ratio 0.40
Drain Rock Storage 326.1 CF
Storage in Pipe 12.4 CF
Storage in Drainrock 326.1 CF
Total Storage 338.5
Time to Drain
Infiltration Rate = 8.0 In/Hr
Infiltration Area = 140.0 SF
Infiltration Volume = 93.3 CF/Hr
V(100) = 344.0 CF
V(100) - Infiltration Volume 250.7
Time To Drain = 3.69 Hr
Hadler Subdivision
Seepage Bed Calculations
Seepage Bed#2
(in common lot)
V(100) DI#2A= 4614.0 CF
V(100) DI#2B = 8087.0 CF
V(100) = 12701.0 CF
V(100)- Infiltration Volume 10511.0
Storage Required 10511.0 CF
Bed Width 15.0 FT
Bed Length 219.0 FT
Bed Depth 8.00 FT
Total Drainrock Footprint 26280 CF
18" Pipe Volume 386.8 CF
Pipe Storage Volume 193.4 CF
Drain Rock Volume 25893.2 CF
Void Ratio 0.40
Drain Rock Storage 10357.3 CF
Storage in Pipe 193.4 CF
Storage in Drainrock 10357.3 CF
Total Storage 10550.7
Time to Drain
Infiltration Rate = 8.0 In/Hr
Infiltration Area = 3285.0 SF
Infiltration Volume = 2190.0 CF/Hr
V(100) = 12701.0 CF
V(100) - Infiltration Volume 10511.0
Time To Drain = 5.80 Hr
Hadler Subdivision
Seepage Bed Calculations
Seepage Bed#3
(in common lot)
V(100) DI#3A= 7828.0 CF
V(100) DI#3B= 6013.0 CF
V(100) = 13841.0 CF
V(100) - Infiltration Volume 11461.0
Storage Required 11461.0 CF
Bed Width 15.0 FT
Bed Length 238.0 FT
Bed Depth 8.00 FT
Total Drainrock Footprint 28560 CF
18" Pipe Volume 420.4 CF
Pipe Storage Volume 210.2 CF
Drain Rock Volume 28139.6 CF
Void Ratio 0.40
Drain Rock Storage 11255.9 CF
Storage in Pipe 210.2 CF
Storage in Drainrock 11255.9 CF
Total Storage 11466.0
Time to Drain
Infiltration Rate = 8.0 In/Hr
Infiltration Area = 3570.0 SF
Infiltration Volume= 2380.0 CF/Hr
V(100) = 13841.0 CF
V(100) - Infiltration Volume 11461.0
Time To Drain = 5.82 Hr
I I
I I
� J
PROPOSED APEX SOUTHEAST SUBD.NO.3 PROPOSED APEX SOUTHEAST SUBD.NO.3 /
PIRR PIRR - - PIRR PIRR PIRR PIRR PIRR PI R PIRR PIRR PIRR PIRR PI R PIRR PIRR \ a
--- -- -------- y Q
DRAINAGE AREA OS-2 sDMHos2 S.VIA ROBERTO LANE 4 Q T
r
l - - I�IE I�IE -IwIf -IE - -IE -l�lE -IW J--lo-M no-on-M no-on-M no--I�IE no-E-IE no-on-M go-onAw oo-m*AW no-�-W T co
S5 3,403 S.F. / 0.08 ACRE DRAINAGE AREA OS-1 ~ T
E.Via Roberto Ln. O C
1 N
— — — — r r i ;. f r IMPERVIOUS=2,862 SDMHOSi — COcc) 0 o
1 - _ -_ - - - -
- - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - 38,528S.F. / 0.88ACRE _
o' r GIRR r _- GIRR_ - GIRR rGIRR -® r GIRR r GIRR GIRR GIRR J •r GIRR GIRR• GIRR• GIRR. GIRR GIRR GTiI R GIRR GIRR r TGB a Q c
- - - - DIOS11 IMPERVIOUS=19,117 0 _-
' •a ' — - — — — DI1B 1 I LLi
O
SSIG B 11 Uj
, — - — — — — — — — — — — O Lii °� O
DRAINAGE AREA 1B MW a } f DRAINAGE AREA 1A ' Z o
DRAINAGE AREA TO d DRAINAGE AREA 2A Z T
PRIVATE DRIVEWAY SWALE 3,990 S.F. / 0.09 ACRE ti 3,663 S.F. / 0.08 ACRE
IMPERVIOUS-1 ,755 W � IMPERVIOUS=1 ,755 116,103 S.F. / 2.67 ACRE
11 ,884 S.F. / 0.27 ACRE — M�
4i 11 (Ir 'I t z s .
III I r.i f f f f y W.VANTAGE POINTE DR. • • r• •r f
• p .,•. .r 1. •• . .• r . r' • r SDMH2A = DI 2A .r oCID
AWES
I A f y SDMH 2B
DI2B f
III w I i•.i ; FUTURE HADLER f
III I i I SUBDIVISION I
I
DRAINAGE AREA 2B
I I w I I .i•r � I
Ij ti Lj MW I SDMH2C 203,858 S.F. / 4.68 ACRE / oNaL
Ij w z I SGSG 26A i / O�OIs TE
0 4 R
S.CADENCE AVE.
W (/
III • 'I N MW
, ACHD STORM DRAIN I OT62
m j I SG 3A — — — — — EASEMENT — — — — MW MW — — OF
— — — — • I ��a/e?�/�3� ?
of Ivl.l II
III awlj :rii r /
ACHD STORM
ASEM NDRAIN
T • i / MEANS
JOIN P
— — — — J FUTURE HADLER
lo SUBDIVISION FG --
EG - - - - - EG - - -
J.I .ro o Iffy fl�f � � f � � flff � --� _ _ _ - - EG - - - - -
EG
_ - - - EG - - - - — — — — - - - -
/ EG EG EG - EG EG \ O~ J Q
I. ` LU o
III w I •a � I � ��/ _ LU
III E I DRAINAGE AREA 3B FUTURE HADLER i FUTURE HADLER / / = zo }
SUBDIVISION / zo m
r D DOD } } SUBDIVISION * / U) z >
Ij 0 0 151 ,645 S.F. / 3.48 ACRE , ���, U o z
w >
III A � FUTURE HADLER' �; / z o z
z
SUBDIVISION Q / CD CD CD
m m o
IICC 0-
z I I I FUTURE W. ORION GREENS DR. � ♦ o`� ♦ / // } � ~ '�
IIISESSION OSAMU= ME SO SO SO SO 0 M -W M ANI-W M�M -lam -W ♦ � / / ¢ z
_ moo 0
W L ♦ / / p N U
z
III - - ♦ � � ♦ / � En
z F
J F-
I� DRAINAGE AREA 3A ♦ // // o
w ♦ Ly W
III 197 341 S.F. / 4.53 ACRE �w � z
w FUTURE HADLER
a L` SUBDIVISION
FUTURE HADLER
I W III I
SUBDIVISION FUTURE HADLER vi ♦ /
III W SUBDIVISION
-f M /
�I
- EG EG EG EG -
II I ; DRAINAGE AREA TO ; — — — — — EG — — — — - EG — — _ - - — - - - - EG - - _ _ _ �
II PRIVATE DRIVEWAY SWALE EG - - - _ _ EG _ _ _ - - EG - - _ - _ EG - - EG - - - - - EG - - - - - EG _ _ _ _ _ EG _ fG , ' ♦ / /
\
11 ,327 S.F. / 0.26 ACRE EG \ \EG \ \ ♦ / // r
F ♦ DRAINAGE AREA TO O
PRIVATE DRIVEWAY SWALE Z
j \
• 10,546 S.F. / 0.24 ACRE Z
O/ z
\ \ EG / 2
Q
EG Q
I - w
z Q
0 Q LU
m � z
y 2i o
DRAINAGE AREA PLAN
SCALE: 1" = 60'-0"HORIZONTAL W�
90 60 30 0 60 120 Q
CIVIL INNOVATIONS a
NORTH HORIZONTAL SCALE IN FEET
GRADING AND DRAINAGE AREA LEGEND
2A DRAINAGE AREA IDENTIFICATION NO.
0.00 SF/AC DRAINAGE AREA(IN SQUARE FEET&ACRES)
PROJECT NO. 21-0701-HAD
m m m m a DRAINAGE AREA BOUNDARY DWG FILE D.100
DESIGNED BY BT
DRAWN BY JTA
CHECKED BY BT
ISSUE DATE 08/25/23
HORIZ.SCALE AS SHOWN
VERT.SCALE AS SHOWN
Dol 00
SHEET 1 OF 1
D:\Civil Innovations Projects\2021\21-0701-HADLER\200-Construction Drawings\205-Construction\21-0701-HADLER-DRAINAGE AREA PLAN.dwg