20060558 Lovell drainage.pdf�vtd
4� -3 11
05-511
DRAINAGE NOTES AND CALCULATIONS
FOR
Phil King Design
Prepared by:
AR 2 2 2g06
C17V"Vo [)-CPAnrM
.0
H N LEHTINEN ENGINEERING
4120 HOYT AVE.
EVERETT, WA 98203
(425)252-2373
W7 91
CLEARHIS
RLPCOMPUTE [Vault] SUMMARY
2 yr Match Q: 0.0208 cfs Peak Out Q: 0.0216 cfs - Peak Stg: 101.40 ft - Active Vol:
268.87 cf - Pipe length: 120.00 ft
10 yr Match Q: 0.0751 cfs Peak Out Q: 0.0758 cfs - Peak Stg: 101.57 ft - Active Vol:
304.17 cf - Pipe length: 120.00 ft
100 yr Match Q: 0.1124 cfs Peak Out Q: 0.1252 cfs - Peak Stg: 101.96 ft -ActiveVol:
368.11 cf - Pipe length: 120.00 ft
Other Match Q: 0.0280 cfs Peak Out Q: 0.0186 cfs - Peak Stg: 101.04 ft -ActiveVol:
182.93 cf - Pipe length: 120.00 ft
Running C:\Prograrn Files\StorrnShed\ExarnpleWault Report.pgrn on Monday, March 20, 2006
Summary Report of all Rl-Pool Data
Project Precips
[2 yr]
1.50 in
[5 yr]
1.75 in
110 yr]
2.00 in
[25 yr]
2.25 in
[100 yr]
2.50 in
[Other]
1.27 in
BASLIST2
[PREDEVELOP] Using [TYPE1A] As [2 yr]
(PREDEVELOP] Using [TYPE1 A] As (10 yr]
(PREDEVELOP] Using [TYPE1A] As [100 yr]
[PREDEVELOP] Using (TYPE1A] As [Other]
[DEVELOP] Using [TYPE1A] As [2 yr]
[DEVELOP] Using [TYPE1A] As (10 yr]
[DEVELOP] Using [TYPE1A] As [100 yr]
[DEVELOP] Using. [TYPEIA] As [Other]
LSTEND
/±O
J
2- L �
7,7-,
BasinlD
Peak Q
Peak T
Peak Vol
Area
Method
Raintype
Event
-------
(cfs)
(hrs)
(ac-ft)
ac
/Loss
PREDEVELOP
0.0416
8.00
0.0208
0.42
SBUH/SCS
TYPEIA
2 yr
PREDEVELOP
0.0751
8.00
0.0339
0.42
SBUH/SCS
TYPEIA
10 yr
PREDEVELOP
0.1124
8.00'
0.0481
0.42
SBUH/SCS
TYPE1A
100
yr
PREDEVELOP
0.0280
8.00
0.0154
0.42
SBUH/SCS
TYPE1A
Other
DEVELOP
0.0815
7.83
0.0311
0.42
SBUH/SCS
TYPE1A
2 yr
DEVELOP
0.1215
7.83
0.0460
0.42
SBUH/SCS
TYPE1A
10 yr
DEVELOP
0.1633
7.83
0.0616
0.42
SBUH/SCS
TYPE1A
100
yr
-
DEVELOP
0.0640"
7.83
0.0245
0.42
SBUH/SCS
TYPE1A
Other
BASLIST [TYPE1A] AS [2 yr] DETAILED
[PREDEVELOP] [DEVELOP]
LSTEND
Pre- Je,",' Vej J-; 01W 1)
�C G(.tjr ---.* 61V'x F1
Drainage Area - PIR DEVELOP
U
J H
Hyd Method: SE3 , y
Peak Factor: 484.00
Storm Dur 24.00 hrs
5
Area
Pervious 0.36,00-ac
Loss Method: SCS CN Number
SCS Abs: 0.20
TC
0.27 hrs
Impervious Q.0570 ac 98.0g)
Total ---
0.04 hrs
0.4-170rau-
E r e*C11h&5
6VfL06V.*'7
Supporting Data:
qj f4jqj.*% &9A
jo
Pervious CN Data:
qe4-10N
grass
Impervious CN Data:
86.00
0. 3600 ac
190"hb-
C^
&A
exist. bldg.
98.00
0.0570 ac
Pervious TC Data:
Flow type: Description:
Length----' Slope:
Coeff: Travel imp
Travel T
T im ' e
Sheet grass
"t�0.00 ft 1.00%
0.1300 16.47 m n
16.47 m n
Impervious TC Data:
Flow type: Description:
Length: Slope:
(,
Coeff: Travel T ime
Sheet exist. bldg./ road
"2.,00 ft 1,00%
0.0110 2.28 min
Drainage Area: DEVELOP
Hyd Method: SBUH Hyd
Loss Method: SCS CN Number
�'
Peak Factor: 484.00
Storm Dur 24.00 hrs
SCS Abs: 0.20
V
fill., OP7
Area
Pervious 0.2110 ac
CN
86.00
TC
0.27
Impervious 0.2100 ac
98.00
hrs
0.04 hrs
Total 0.4210 ac
Supporting Data:
Pervious CN Data:
grass
Impervious CN Data:
86.00
0.2110 ac
bldg.,parking
98.00
0.2100 ac
'0
Pervious TC Data:
Flow type: Description:
Length: Slope:
Coeff: /,Travel Tirae
Sheet grass
120.00 ft 1.00%
0.1300 16.47 min
Impervious TC Data:
Flow type: Description:
Length: Slope:
Coeff: Travel Timi)e
Sheet bldg, driveway
120.00 ft 1.00%
0.0110 28 min
6 codv'el --
HYDILIST SUMMARY
[2 out] [10 out]
yr yr
[25 yr out]
[6 mo out]
LSTEND
HydlD Peak
ere
Q
Peak T
Peak Vol
Cont Area
(cfs)
2 yr out 0.02
(hrs)
10.33
(ac-ft)
0.0306
(ac)
0.4210
C% S5 (40vt
10 yr out 0.08
8.33
0.0455
.0.4210
25 yr out 0.13
8.17
0.0612
0.4210
6 mo out 0-02
10.0 0
0.0245
0.4210
STORLIST
eeJo-�
[trap]
I-STEND
Node ID: trap
Desc:
manhole structure
Start El:
100.0000 ft
Max El: 102.1200 ft
Contrib Basin:
Contrib Hyd:
Length
Diam Slope
UpNode DnNOde
120.0000 ft
2.0000 ft 0.10%
DISCHLIST
[manhole]
LSTEND
Control Structure ID: manhole - Multiple Orifice Structure
Start El
Max El Increment
100.0000 ft
Orif
102.0000 ft 0.10
/10
Coeff:
0.62
Bottom El:
100.00 ft
rf,
out to 2nd:
1.4100 ft
Lowest Diam:
Diam:
0.8203 in
2.22,66
2nd to 3rd:
0.1600 ft
Diam:
Yin
Pmog �n
3rd to 4th:
0.3900 ft
Diam:
b.-999
H-NLehtinen
EnOneerini!
4120 Hoyt Ave.
Everett, WA 98203
(423) 252-2373
0 . VERFL.OW ELEVATIO
)N
,�TO PROVIDED DETENTION �m ;'E
AND OIL SEPARATION
PER PLANS
04
to
B Date
,Pa2e No. of
-HANDHOLD
STEPS OR
LADDER
iFT HANDLE,
SEE NOTE 3: PIPE
SUPPORTS .3" X .075"
12
I'MIN
OUTLET
METAL PIPE
(SEE NOTE 4
RESTRICTOR PLATE WITH
ORIRCE (SEE NOTE 8) 54" MIN DIA
SECTION A —A
7
2%.
PLAN VIEW
CLEANOUT
S�EAR GATES
8 DIA. MIN.
REMOVABLE
WATERTIGHT
COUPLING -\11
PLATE WITH,
ORIFICE ASJ
SPECIFIED
ELBOW DETAIL
........ . .... ... ........
CEMENT CONCRETE
CURS ARD GUTTER