7120 181ST PL SW.PDFiiiiii IIIII iiiiii1302
7120 181 ST PL SW
NOTICE:
No warranty of accuracy.
The information shown on the attached map(s)
was compiled for use by the City of Edmonds,
its Employees and Consultants. The City of
Edmonds does not warrant the accuracy of
anything set forth on these map(s). Any person
or entity requesting a copy should conduct an
independent inquiry regarding the information
shown on the map(s), including, but not limited
to, the location of any sewer stub shown. Such
sewer stubs may or may not exist and may or
may not exist at the location shown. Neither
the City of Edmonds nor its employees or
officers shall be liable for the information given
on map(s), nor for any one representation
provided based upon said map(s).
To Existing Plat
181ST PL SW
s'
P/P
6" C/O to grade,
Cast Frame & Lid
6" Pp�•
6", 22' Bend
ol
lo
12'
4"X6"
PVC
Reducer
47777 I-AlkI11111'
3.5'
474 '
of ED* CITY OF EDMONDS SIDE SEWER AS —BUILT
ADDRESS SCALE
7120 181 ST PL SW NTS
HOMEOWNER CONTRACTOR
PAUL 1AMS CONST.
DATE DRAWN PERMIT
-&t. 18g0 4/12/01 BY I. ABILA NO, 9358
ERICH O. TIETZE AND ASSOCIATES, INC.
Engineers and Consultants
18530 76th Avenue West Suite B Edmonds, WA 98026 425-771-6212 FAX 425-775-0236
Mr. Don Fiene September 20, 2000
City of Edmonds
121 5`h Avenue North
Edmonds, WA 98020
Subject: Drainage Plan for a 3-lot Short Plat for Robert Eckberg
Dear Don:
The proposed short plat is a total of approximately 0.59 acres and consists of Lots 17 and 18 of the
Madrona Hill Plat. There is an existing house and associated development on Lot 17, which will remain.
Lot 18 is undeveloped. About one third of Lot 17 will be combined with Lot 18 to form two new lots.
Only one of the new lots will be developed. For purposes of detention system sizing, development of both
of the new lots and the existing house were used. Since the site ultimately drains to a creek, the 2-year, 10-
year and 100-year storms were used for detention sizing.
The enclosed plans were developed in accordance with the Department of Ecology Stormwater
Management Manual for the Puget Sound Basin and the City of Edmonds Stormwater Management
Ordinance. Since the total pavement area is less than 5,000 square feet, biofiltration facilities are not
required.
The detention system is designed for the 2-year, 10-year and 100-year storms. Except for the existing drive
and house that will remain, the short plat was modeled as if it consists of meadows. Calculations for the
proposed design are attached to this letter.
In order to develop this short plat, a city sewer system must be installed. The timing for completion of the
sewer system is not known at this time.
In addition, the short plat development is required to construct new curbs, gutter and sidewalk along the
frontage of the site. A local improvement district is being planned to construct new curbs, gutters and
sidewalks along 72°d Avenue West. The city traffic engineer has agreed for the developer of this short plat
to contribute a fee in lieu of construction to be dedicated specifically t fgr
construction of the new walks, curbs, and gutters. If the improvements are not completed within six years
of the fee dedication, the fee shall revert back to the developer. The city traffic engineer has set the cost per
foot of frontage for the curb, gutter and sidewalk at $25.00. A en o r m
t is s o p a city.
That amount is not known at this time.
Respectfully submitted,
ERICH O. TIETZE AND ASSOCIATES, INC. C O h�i S (�
Erich O. Tietze, P.E.
President ,.Qx/f �/rf RECEIVED
IW,Jje- d d -eJ Q OCT 17 2000
f DEVELC'TM CTit.
OF EDMONDS
Ivl O�Js�
F-, r I
E/emlion /nterm/
Cut Areo R 2
Cut Iro/ume CY
Fill Areo Ilt 2
Fi// Volume CY
Cumu/olio Cut CY
Cumu/otir Fi// Ilor
80.60 - 81.60
0.00
0.00
0.00
0.00
0.00
0.00
81. 50 - 82 50
000
000
000
000
000
000
82.60 - 8J 60
0.00
0.00
5.6J
0.21
0.00
0.21
81 60 - 84.60
0.00
0.00
5-%94
2.00
0.00
2.21
84. 60 - 85 50
9. J4
O..i5
48.19
1.78
O. J5
199
85.60 - 85..60
57.58
2..1-i
94.29
-i.49
2.48
7.48
86 50 - 8750
14.62
0.54
IJ2. 89
4 92
J 02
1241
87.60 - 88.60
0.08
0.00
208.97
7.74
J 02
2014
88. 60 - 89 50
000
000
251.21
9. JO
J 02
29. 45
8.960 - .9050
756
0.28
J07.18
1R J8
J JO
40. 8J
90. 60 - 91.60
1055
O. J9
291. B6
1081
J 69
51.54
91.60 - .9260
9..32
O. J5
409. J2
15. I6
4.04
6579
92 50 - 9J 60
l i. 00
048
J5891
1J 66
4.52
8046
9.i.60 - 94.50
1.21
0.04
4JO24
15.9.i
4.57
96.. J9
94. 60 - 95. 60
225.5J
8. J5
25J85
940
12.92
10580
95.60 - 96.60
J55.44
/J 16
465.00
17.22
26.08
12J 02
.9660 - 97. 60
25852
9..57
J62 5J
U. 4J
J5. 66
1J6. 45
9760 - .98460
185.. J4
690
48J JO
1790
4256
154. J5
.9860 - 99.60
247..38
9.16
Ji97OJ
14.70
51.72
169.05
99.60 - 100.60
215.48
7.98
4J0.51
15.94
59.70
185.00
100.60 - 101.60
J47.64
12.88
416.76
15.44
72.58
200.4J
101. 60 - 10260
J06. J2
11. J5
414.12
15. J4
8J 92
21577
102. 60 - IOJ 60
285. 7J
10.58
458. J7
16.98
94. 51
2J2. 75
IOJ 60 - 104.50
J6.10
1. J4
5J6.22
19. 86
.9584
25261
104 60 - 10560
16JJ5
605
90622
JJ56
101.89
28517
105. 60. - 106.. 50
516.77
1914
7J7. 5J
27. J2
121. OJ
JIJ 49
106. 60 - 10760
58542
21.72
44552
1650
14275
J29. 99
107.60 - 108.60
627.18
2J2J
J42 46
12.68
165.98
J42.67
108. 60 - 10950
5J0.95
1.956
2J8. 84
885
18565
J51. 52
109. 60 - 110. 60
401.77
14.88
81.72
J OJ
200. 5J
J54. 54
110.60 - 111. 60
276.81
10.25
0. JJ
0.01
210.78
J54.56
111. 50 - 11250
/5J 10
567
0.19
001
21645
J54. 55
112. 60 - 11J 60
50. J9
1.87
000
000
218. JI
J54. 55
I1J 60 - 114.60
0.00
0.00
0.00
0.00
218 JI
J54.56
1/4 50 - 11560
000
000
000
000
218. J1
J54.56
1/5.60 - 116.60
0.00
0.00
0.00
0.00
218. Jl
J54.56
1/6. 50 - 11760 1000
1000
000
000
218 JI
J54.55
S.C.S. TYPE -IA RAINFALL DISTRIBUTION 2 Y
ENTER: FREO(YEAR), DURATION(HOUR), PRECIP(INCHES)
2 24 1.5
---------------------------------------------------------------------
s:xxx::xxx::xxxxxxxx S.C.S. TYPE -IA DISTRIBUTION xxxxxxxxxxxxxxxxxxxx
xxtxxxxx:x 2-YEAR 24-HOUR STORM xxxx 1.50' TOTAL PRECIP, xxxxxxxxx;
--------- -------------------------------------------------------�
ENTER: A(PERV , CN(PERV 4 IMPERV'), CN(IMPERV), IC FOR BASIN NO., I
i
0.54 85 0.06 98 12.6
DATA PRINT-OUT: f; \ t * , � A
S.C.S. TYPE -IA RAINFALL DISTRIBUTION
ENTER: FREO(YEAR), DURATION(HOUR), PRECIP(INCHES) o
10 24 2.0
------------------------------------------------------------- =--------
xxxxxxxxxxxxxxxxixxx S.C.S. TYPE -IA DISTRIBUTION xxxxxxxxxxxxxxxxxxxx'
xxxxxxxxx 10-YEAR 24-HOUR STORM xxxx 2.00' TOTAL PRECIP. xxxxxxxxx
----------------------------------------------------------------------
ENTER: A(PERV), CN(PERV), A(IMPERV), CN(IMPERV), TC FOR BASIN NO. 1.
0.54 85 0.06 98 12.6
DATA PRINT-OUT:
AREA(ACRES) PERVIOUS IMPERVIOUS TC(MINUTES) AREA(ACRES) PERVIOUS IMPERVIOUS TC(MINUTES)A CN A CN
A CN A CN 6 5 85.0 .1 98.0 12.6
.6 .5 85.0 .1 98.0 12.6
PEAK-O CFS) T-PEAK(HRS) VOL(CU-FT)
PEAK-0 S) T-PEAK(HRS) VOL(CU-FT) i 11 7.83 1941
06 7.83 1162
ENTER [d:)(path]filename[.ext) FOR STORAGE OF COMPUTED HYDROGRAPH:
ENTER [d:][path)filename[.ext) FOR STORAGE OF COMPUTED HYDROGRAPH: EckEx.10
Ec kEx .2
S.C.S. TYPE -IA RAINFALL DISTRIBUTION
ENTER: FREO(YEAR), DURATION(HOUR), PRECIP(INCHES) p� J
100 24 3.0
-----------------------------------------------------------------------
xxxxxxxxxxxxxxxxxxxx S.C.S. TYPE -IA DISTRIBUTION :xxxxxxx'xxxxxxxxxxxx �yp
.24-Hn110 tM)4 ?O?A! PRECIP.
--------------------------------------------------------------
ENTER: A(PERV), CN(PERV), A(IMPERV), CN(IMPERV), TC FOR BASIN NO. 1
0.54 85 0.06 98 12.6 U.
DATA PRINT-OUT:
AREA(ACRES) PERVIOUS IMPERVIOUS TC(MINUTES)
A CN A CN
6 .5 85.0 .1 98.0 12.6
PEAK- S) T-PEAK(11RS) VOL(CU-FT)
7.83 3710
ENTER [d:)(path)filename[.ext] FOR STORAGE OF COMPUTED HYDROGRF
FckFx.100 ,
ti
S.C.S. TYPE -IA RAINFALL DISTRIBUTION f
ENTER: FREQ(YEAR), OURATION(HOUR), PRECIP(INCHES) 77
2 24.._ 1.5
-----------------------------------------------------------
�xsssxsxxsxxxsssxxxx S.C.S. TYE-A DISTRIBUTION sxsssxsxxsxsxtxxsxxx
sxsxsxxxs 2-YEAR 24-HOUR STORM xxxx 1.50' TOTAL PRECIP. xxxxxxxxx
----------------------------------------------------------------------
ENTER: A(PERV), CN(PERV), A(IMPERV), CN(IMPERV), TC FOR BASIN NO. 1
0.10 86 0.19 98 6.1
DATA PRINT-OUT:
AREA(ACRES) PERVIOUS IMPERVIOUS TC(MINUTES)
A CN CH
8.
3 .1 86.0 2 98.0 6.1
EAK-Q(CFS) T�EAK(NRS) VOL(CU-FT)
/ .08 7.67 1061
ENTER [d:1(pathlfilename[.exL1 FOR STORAGE OF COMPUTED HYDROGRAPH:
•
S.C.S. TYPE -IA RAINFALL DISTRIBUTION l
ENTER.-,FREQ(YEAR). DURLOTJ ON(NOVR), PRECIP(INCHES). v
10 . 24 2.0
----------------------------------------------------------------------
xxxxtxxxxsxsxxxxsxxx S.C.S. TYPE -IA DISTRIBUTION xxxxsxxxsxssxxxsxsxx
xxxxxxxxx 10-YEAR 24-IIOUR STORM xxxx 2.00' TOTAL PRECIP. xxsxsxxsx
----------------------------------------------------------------------
ENTER: A(PERV),.CN(PERV), A(IMPERV), CN(IMPERV), TC FOR BASIN NO. 1
0.10 86 0.19 98 6.1
DATA PRINT-OUT:
AREM ACRES) PERVIOUS IMPERVIOUS TC(MINUTES)
DA CNC.A CN
.1 860 .2 98.0 6.1
PEAK-Q(CFS) T-PEAK(HRS) VOL(CU-FT)
.11 / 7.67 1531
EckDev.2
ENTER [d:)(Pathlfilename[.ext) FOR.STORAGE OF COMPUTED HYDROGRAPH:*
EckDev.10
S.C.S. TYPE -IA RAINFALL DISTRIBUTION `~ _
ENTER: FREO(YEAR), DURATION(HOUR), PRECIP(INCHES)
30/: J
------------ - - _
sxssxxxsxxxsx:sssxsx S.C.S. TYPE -IA DISTRIBUTION sx:xxs:x:x:sxxxsxxxs
xxxxxxxxx 100-YEAR 14-HOUR STORM sxxs 3.00' TOTAL PRECIP. xxxxxxxxx
--------------------------------------------------
ENTER: A(PERV), CN(PERV), A(IMPERV), CN(IMPERV), TC FOR BASIN NO. I
0.10 ' 86 0.19
98 6.1
t{ DATA PRINT-OUT:
• �..� AREA(ACRES) PERVIOUS IMPERVIOUS TC(MINUTES)
CN A CN
Q7 .3 I 86.0 .2 98.0 6.1
PEAK-Q(CFS) T-PEAK(HRS) VOL(CU-FT)
.18 7.67 2512
ENTER fd:lfpath)filenamef Pvtl FAD cTADnrr „r
l
S.C.S. TYPE -IA RAINFALL DISTRIBUTION ;'
�L "'� j�
S.C.S. TYPE -IA RAINFALL DISTRIBUTION
ENTER: FREO(YEAR), OURATION(HOUR), PRECIP(INCHES).
I
ENTER: FREO(YEAR), DURATION(HOUR), PRECIP(INCHES)
24 10
2 24 1.5•
10
------------------------------------------------ -------------------
-------------=-------------------------------------------------------
ssssxssssssssssssssx S.C.S. TYPE -IA DISTRIBUTION ssssssssssssssssssss
sssssssssssssx�sxsxs S.C.S. TYPE -IA DISTRIBUTION xsxssxxsxsxxsxxsxx:x
10-YEAR 24-HOUR STORM sass 2.00' TOTAL PRECIP. ssxxxxssx
sxssxsssx 2-YEAR 24-HOUR STORM ssss 1.50' TOTAL PRECIP. sssssssss
sssssss#s
--
---------------------------- -------------------------------- ----------
ENTER: A(PERV), CN(PERV), A(IMPERV), CN(IMPERV), TC FOR BASIN NO. 1
------------------------------------ ------------------------------
ENTER: A(PERV), CN(PERV), A(IMPERV), CN(IMPERV); TC FOR
BASIN NO. 1
7.9
0.25 86 0.06 98 7.9
I 0.25 86 0.06 98
DATA PRINT-OUT:
DATA PRINT-OUT:
AREA(ACRES) PERVIOUS IMPERVIOUS TC(MINUTES)
AREA(ACRES) PERVIOUS IMPERVIOUS TC(MINUTES)
A CN �CN
A CN A CN
86.0 .1 98.0 7.9
3 .3 86.0 1 8.0 7.9
.3 .3
i
PEAK-0(CFS) T-PEAK(HRS) VOL(CU-FT)
I PEAK-0(CFS) 1-PEAK(HRS) VOL(CU-FT)
.04 7.83 725
_ 08� 7.83 1156
ENTER [d:][Path]filename[.exL] FOR STORAGE OF COMPUTED HYDROGRAPH: li
ENTER [d:][path]filename[.exL] FOR STORAGE OF COMPUTED
HYDROGRAPH:
EckBY.2
EckBy.10
S.C.S. TYPE -IA RAINFALL DISTRIBUTION l
ENTER: FREO(YEAR),..DURATION(HOUR), PRECIP(INCHES) t%
%
100 3.0 --
:xssss:ssssssxssssss S.C.S. TYPE -IA DISTRIBUTION
101A1sPRECIP�ztzxz►xxss
sssssssss 100-YEAR 24-HOUR STORM xss
-----=------------------------------------------
ENTER: A(PERV), CN(PERV), A(IMPERV), tN(ItfBERV), TC FOR B7.ASIN N0. 1
0.25 86 0.06 i
DATA PRINT-OUT:
AREA(ACRES) PERVIOUS IMPERVIOUS TC(HINUTES)
A CN A CN
•3 .3 86.0 .1 98.0 1.9
PEAK-0((,FS) 1-PEAK(HRS) VOL(CU-FT)
l5 7.83 2111
ENTER [dd Path]filename[.exL) FOR STORAGE Of COMPUTED HYDROGRAPH:
EckBy.100
R/D FACILITY DESIGN ROUTINE
SPECIFY TYPE OF R/D FACILITY:
1 - POND 4 - INFILTRATION POND
2 - TANK 5 - INFILTRATION TANK
3 - VAULT 6 - GRAVEL TRENCH/BED
2
ENTER: TANK DIAMETER (ft), EFFECTIVE STORAGE DEPTH (ft)
4.0 4.0
ENTER [d:)[path)filename[.ext) OF PRIMARY DESIGN INFLOW HYDROGRAPH:
EckDev.l00
PRIMARY DESIGN INFLOW PEAK = .18 CFS
ENTER PRIMARY DESIGN RELEASE RATE(cfs):
0.10
ENTER UMBER OF INFLOW HYDROGRAPHS TO BE TESTED FOR PERFORMANCE (5 MAXIMUM):,
2
ENTER [d:)[path)filename[.ext) OF HYDROGRAPH 1:
EckDev.10
ENTER TARGET RELEASE RATE(cfs):
0.05
ENTER [d:)[path)filename[.ext) OF HYDROGRAPH 2:
EckOev.2
ENTER TARGET RELEASE RATE(cfs):
0.02
ENTER: NUMBER OF ORIFICES, RISER-HEAD(ft), RISER-DIAMETER(in)
2 4.0 6
INITIAL STORAGE VALUE FOR ITERATION PURPOSES: 885 CU-FT
BOTTOM ORIFICE: ENTER 0-MAX(cfs)
0.0309
DIA.= .75 INCHES
TOP ORIFICE: ENTER HEIGHT(ft)
2.2
DIA.= 1.38 INCHES
PERFORMANCE:.
INFLOW TARGET -OUTFLOW
ALTUAL-OUTFLOW
PK-STAGE
STORAGE
DESIGN HYD:
.18 .10.
.10
3.99
427
TEST HYD 1:
.11 .05
.05 V
2.44
270
TEST HYD 2:
.08 .02
.02 ✓
1.80
180
STRUCTURE DATA: R/D TANK (FLAT
GRADE)
RISER -HEAD TANK-DIAM STOR-DEPTH TANK -LENGTH
STORAGE -VOLUME
4.00 FT 4.00 FT 4.00
FT 34.0 FT
427 CU-FT
DOUBLE ORIFICE RESTRICTOR: DIA(INCHES)
HT(FEET)
I
0-MAX(CFS)
BOTTOM ORIFICE:
.75 .00
.031
TOP ORIFICE:
1.38 2.20
.069
ROUTING DATA:
STAGE(Fl) DISCHARGL(CFS) STORAGE(CU-FT) PERM-AREA(SO-FT)
.00 .00
.0
.0.
O
.40 .01
22.2
.80 .01
60.9
.0
.0
S
.1.20 .02
107.8
.0
1.60 .02
159.7
.0
2.00 .02
213.7
.0
rh
2.20 .02
240.9
2.40 .05
267.8
.0
.0
LZ
2.80 .07
319.6
.0
3.20 .08
366.6
.0
3.60 .09
405.2
.0
4.00 .10
427.4
.0
4.10 .26
427.4
.0
4.20 .53
427.4
.0
4.30 .62
427.4
.0
4.40 .71
427.4
.0
4.50 .78
427.4
.0.
`
AVERAGE VERTICAL PERMEABILITY:
.0 MINUTES/INCH
SPECIFY: F - FILE, N - NEWJOB,
P - PRINT IF/OF,
R - REVISE, 5 - STOP
f
ENTER [d:)[path)filename[.extj FOR
STORAGE OF ROUTING
DATA:
Eck.dta
14J�e�oN3Js �rQ
Ito Y-
FESERVOIR ROUTING !NFLOW/OUTFLO61 ROUTINE OZ
SPECIFY (d:)(pzth)filenar:e(.er.t) OF ROUTING DATA
:cY..cta
DISPLAY ROUTING DATA (Y or N)?
y
=:DUTiNG DAik:
:TAGE(Fi)
DISCHARGE(CFS)
STORAGE(CU-Fi.AREA(S6-Fi)
00
00
.0
.0
.40
.01
22.2
.0
.60
01
60.9
.0
I.20
O2
107.E
.0
1.50
O2
iE9.,
.0
2.00
2.20
02
240..
.0
2.40
.05
25i.B
.0
2.60
.07
219.6
.0
3.20
ve
366.6
.0
3.60
.09
405.2
.0
4.00
.10
427.4
.0
4.10-
.26
427.4
.0
4.20
.53
427.4
0
4.30
.62
427.4
.0
4.40
.71
427.4
.0
4.50
.78
427.4
.0
4.60
.85
427.4
.0
AVERAGE PERM -RATE: .0 MINUTESIINfH
:NTER (d:l(path)filenare(.ezt) OF COMPUTED HYDROGRAPH:
EckDev.2
INFLOW/OUTFLOW ANALYSIS:
PEAK-INFLOW(CFS) PEAK-OUTFLOW(CFS) OUTFLOW-VOL(CU-FT)
.08 .02 1101
i
INITIAL-STAGE(FT) TIME-OF-PEAK(HRS) PEAK-SiAGE-ELEV(FT)
.00 12.50 1.62
PEAK STORAGE: 180 CU-FT
:NTER [d:)(Path)filename(.ezt) FOR SiORAGE OF COMPUTED HYDROGRAPH
:ck0ut.2
RESERVOIR ROUTING INFLOW/OUTFLOW ROUTINE
SPECIFY (d;)(path)filerrrie(.er,t) OF ROUTING DATA
Eck.dta
DISPLAY ROUTING DATA (Y or N)?
y
ROUTING DATA:
STAGE(FT) DISCHARGE(CFS) STORAGE(fU-FT) PERM-AF;EA(SC-F;
.00
.00
.0
.0
.40
t'1[2.2
.0
.80
.01
60.9
.0
1.20
.02
107.8
.0
1.60
.02
159.6
.0
2.00
.02
213.7
.0
2.20
.02
240.9
.0
2.40
.05
257.8
.0
2.80
.07
219.6
.0
2.20
.08
366.6
.0
3.60
.09
405.2
.0
4.00
.10
427.4
.0
4.10
.26
427.4
.0
. c
.53
427.4
.0
4.30
.62
427.4
.0
4.40
.71
427.4
.0
4.50
.78
427.4
.0
4.60
.85
427.4.
.0
AVERAGE PERM -RATE: .0 MINUTES/INCH
ENTER (Ki [path)filename[.ext) OF COMPUTED HYDROGkAPH:
EckDev.10
INFLOW/OUTFLOW ANALYSIS:
PEAK-INFLOW(CFS) PEAK-OUTFLOW(CFS) OUTFLOW-VOL(CU-FT)
.11 .05 1526
INIIIAL-STAGE(FT) TIME-OF-PEAK(HRS) PEAK-STAGE-ELEV(FT)
.00 8.17 2.44
PEEK STORAGE: 270 CU-FT
ENTER [d:)[Path)fllename(.ezt) FOR STORAGE OF COMPUTED HYDROGRAPH:
EckOut.10
L.;:r
C? •J�� V 1ow S ' V
d e� eA__;�ro tlt-
RESERVOIR ROUTING INFLOW/OUTFLOW ROUTINE
SPECIFY [d:)[po"th)fll Eck.dte OF ROUTING GALA
DISPLAY ROUTING 'DATA (Y or N)?
y
ROUTING DATA:
SIAGIE(FT ''ISCHA'RGE(CFS) SIORAGE(C U-F T )rERM-AREP.{
00 .00 ,0 0
.40
•C'1 22.2
.E.0 .01
60.9 ,0
1.20 .02 107.8
.J
1.60 .02 159.6
.0
2.00 .02 213.1
2.20 0
02 240.9 0
2.40 .05 267.8 0
2.60 .07 319.6
3.20 .0
G8 366.6 0
3.60 U4 405.2 0
4.00 i0 427.4 0
4.10 .26 427.4
4.20 .51 .0
I 4.30 427.4 .0
b2 427.4 0
4.40 .71 427.4
4.50 .18 .0
427.4
4.60 0
.85 427.4 0
AVERAGE PERM -RATE: .0 MINUTES/INCH
ENTER (d:l[path)f;lenane[.eztJ OF COMPUTED HYDROGRAPH:
EckDev.100
INFLOW/OUTFLOW ANALYSIS:
PEAK-INFLOW(CFS) PEAK-OUTFLOW(CFS) OU7FLOW-VOL(CU-FT)-
18T 10� 2451
INITIAL-STAGE(FT) TIME-OF-PEAK(HRS) PEAK-STAGE-ELEV(fT)
00 8.00 3.95
PEAK STORAGE: 420 CU-FT
ENTER [d:)[peth)filen8te[.ext) FOR STORAGE OF COMPUTED HYDROGRAPH:
Eck0ut.100
ROUTINE FOR ADDING HYDROGRAPHS Z K J
ENTER: [d:)[path)filename[.ext] OF HYDROGRAPH 1 ..� .
EckOut.2
ENTER: TRAVEL TIME (MINUTES) OF HYDROGRAPH 1
0.0
ENTER: [d:][path]filename(.ext) OF HYDROGRAPH 2
Eck8y.2
ENTER: TRAVEL TIME (MINUTES) OF HYDROGRAPH 2
0.0
DATA PRINT-OUT:
HYDROGRAPH 1: PEAK-0= .02 CFS T-PEAK= 7.67 HRS TT= 0 MINUTES
HYDROGRAPH 2: PEAK-0= .04 CFS T-PEAK= 7.67 HRS IT: 0 MINUTES
HYDROGRAPH SUM: PEAK-0= .0� 6 CFS - T-PEAK= 7.67 IIRS
TOTAL VOLUME: 1800CU-FT
ROUTINE FOR ADDING HYDROGRAPHS _ ` ----
ENTER: (d:](path)filename[.exL] OF HYDROGRAPH 1
EckOH.10
ENTER: TRAVEL TIME (MINUTES) OF HYDROGRAPH I
0.0
i
ENTER: W](path]filename[.exL] OF HYDROGRAPH 2
• I
EckBy.10
ENTER: TRAVEL TIME (MINUTES) OF HYDROGRAPH 2 `
0.0
DATA PRINT-OUT:
HYDROGRAPH 1: PEAK-0= 05 CFS T-PEAK= 0.00 IIRS TT= 0 MINUTES
HYDROGRAPH 2: PEAK-O= .08 CFS T-PEAK= 1.83 IIRS TT= 0 MINUTES
HYDROGRAPH SUM: PEAK-0= .10 CFS T-PEAK=,.--" ' HRS
TATAI VAIIINF: 2622CU-FT <'� 1w.
ROUTINE FOR ADDING HYDROGRAPHS
ito-�,
ENTER: [d:][path]filename[.exL] OF HYDROGRAPH I
EckOut.100
ENTER: TRAVEL TIME (MINUTES) OF HYDROGRAPH 1
0.0
ENTER: [d:][path]filename[.ext) OF HYDROGRAPH 2
Eck8y.100
ENTER: TRAVEL TIME (MINUTES) OF HYDROGRAPH 2
0.0
DATA PRINT-OUT:
HYDROGRAPH 1: PEAK-0= .10 CFS T-PEAK= 0.00 HRS TT= 0 MINUTES
HYDROGRAPH 2: PEAK-0= .15 CFS T-PEAK= 7.83 IIRS TT= 0 MINUTES
HYDROGRAPH SUM: PEAK-0= .24 CFS -T-PEAK= 7.03 HRS
TOTAL VOLUME: 4566CU-FT �L
i
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x
o
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ij
,j
'i
i
CA FILE NO. q `7 J 1J 4
Critical Areas Checklist
7 ---------------------------------------------------------
Site Information (soils/topography/hydrology/vegetation)
1. Site Address/Location: `7(2 I l 5 r P�- S - U—) '� II-�� C-` Z"mot Ip•�,'e '
� irve5`T"
2. Property Tax Account Number: 4 (o D o 0 o f ^7 o a
3. Approximate Site Size (acres or square feet): l Z; ° ° cg k t 12-1 a 0
4. Is this site`currently developed? es; no. C c• 0. I
If yes; how is site developed? (D r4 e I^ e uaf,
5. Describe the general site topography. Check all that apply.
Flat: less than 5-feet elevation change over entire site.
olling: slopes on site generally less than 15% (a vertical rise of 10-feet over a
horizontal distance of 66-feet).
R
7
Hilly: slopes present on site of more than 15% and less than 30% ( a vertical rise of
10-feet over a horizontal distance of 33 to 66-feet).
Steep: grades of greater than 30% present on site (a vertical rise of 10-feet over a
horizontal distance of less than 33-feet).
Other (please describe):
Site contains areas of year-round standing water: J ; Approx. Depth:
Site contains areas of seasonal standing water: 0 ; Approx. Depth: _
What season(s) of the year?
8. Site is in the floodway AL 0 floodplain I of a water course.
9. Site contains a creek or an area where water flows across the grounds surface? Flows are year- iki J
round? Flows are -seasonal? (What time of year? ).
0. Site is primarily: forested h ly ; meadow ; shrubs ; mixed
urban landscaped (lawn,shrubs etc)
11. Obvious wetland is present on site: jAA O
---=----------- -------------- ..------------------Foi
1. Site: is Zoned?;
2 -SCS ina e.d soil type(s)� ...
PP
3 Wetland.inventory:or C.A::map.. indicates. wetland present. on site?.
4. .:: Critical Areas.inventoryor.C..A. map: indicates Critical Area.on site?
5::. :Site within designated earth.subsidence landslide hazard area?
6 :,:: .Site designated on the:Environmentally: Sensitive Areas Map?.
DET'EIt.M:INATION
^ca chkAoc; Rev 10/03/97
RECEJVSD�
MAY 13 1999
City 01 EdmondsGIiY OF ENDS CTR
CRITICAL AREAS CHECKLIST
The Critical Areas Checklist contained on this form is
to be filled out by any person preparing a
Development Permit Application for the City of
Edmonds prior to his/her submittal of a development
permit to the Citv.
The purpose of the Checklist is to enable City staff to
determine whether any potential Critical Areas are, or
may be, present on the subject property. The
information needed to complete the Checklist should
be easily available from observations of the site or
data available at City Hall (Critical Areas inventories,
maps, or soil surveys).
An applicant, or his/her representative, must fill out
the checklist, sign and date it, and submit it to the
City. The City will review the checklist, make a
precursory site visit, and make a determination of the
subsequent steps necessary to complete a development
permit application.
Please submit a vicinity map along with the signed
copy of this form to assist City staff in finding and
locating the specific piece of property described on
this form. In addition, the applicant shall include
other pertinent information (e.g., site plan, topography
map, etc.) or studies in conjunction with this Checklist
to assist staff in completing their preliminary
assessment of the site
I have completed the attached Critical Areas Checklist and attest that the answers provided are factual, to the
best of my knowledge (fill out the appropriate column below).
Owner/Applicant:
Applicant Representative:
amen I lk ' 2 �" S� 2 = Wme
Street Address
ELI "" A �,� co Z- G
City State Zip
z5- --7-Zs- 3-7!�-7L
Tele hone
Signature
met Address
City State Zip
Telephone
Signature
Date
c:reception\jana\cad. doc
Date
(over)
! PC. 18q,%)
Arthur C. O'Brien
18218 52nd Avenue W
Lynnwood, WA 98037
Subject:
Dear Applicant:
CITY OF EDMONDS
121 5TH AVENUE NORTH - EDMONDS, WA 98020 - (425) 771.0220 - FAX (425) 771.0221
DEVELOPMENT SERVICES DEPARTMENT
Planning - Building • Engineering
May 27, 1999
Determination regarding Critical Areas Checklist # 99-134
BARBARA FAHEY
MAYOR
Enclosed please find a copy of the Critical Areas Checklist you submitted. The "DETERMINATION" reached by the City
is located on the reverse side of the form (bottom of page).
It is very important for you to retain a copy of this Critical Areas Checklist "DETERMINATION" for your records.
... .. ............. __....
IMPORTANT INFORMATION TO BE NOTED:
PLEASE EXAMINE THIS" DETERMINATION" FOR ADDITIONAL REQUIREMENTS. YOU MAY NEED TO SUBMIT
ADDITIONAL INFORMATION SUCH AS AN ENVIRONMENTAL CHECKLIST OR CRITICAL AREAS STUDY.
The `DETERMINATION' for the Critical Areas Checklist you submitted is a site -specific determination not a
project -specific determination.
You must submit a copy of the. CRITICAL AREAS CHECKLIST and DETERMINATION WITH ALL 40
PERMIT APPLICATIONS or YOUR APPLICATION WILL NOT BE PROCESSED.
Permit applications include the following:
Enc: Determination
* Architectural Design Board
C: ReceptionUana\C R LT R.doc
Building Permits
Conditional Use Permits
Subdivisions
Variances
Applications to the ADB* Land Use Applications
Any other development permit applications.
Thank you.
Planning Secretary
• Incorporated August 11, 1890 •
Sister City - Hekinan, Japan