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LEGAL DESCRIPTION
�2N'R'�N1.1112�MN'T' THAT CERTAIN PARCEL OF LAND BEING A PORTION OF THE HENRY H. TOBIN DONATION
LAND CLAIMED IN SECTION 18, TOWNSHIP 23 NORTH, RANGE 5 EAST, W.M. IN KING
COUNTY WASHINGTON, MORE PARTICULARLY DESCRIBED AS FOLLOWS:
V X15T 121I 4 COMMENCING AT A CERTAIN CONCRETE MONUMENT AT THE INTERSECTION OF THE CENTERLINE
-OiOKZM 'ram\v40;z OF SOUTH TOBIN STREET AND THE WESTERLY RIGHT-OF-WAY MARGIN OF LAKE AVENUE
TREET
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SOUTH; THENCE SOUTH 88 13 00 EAST ALONG SAID CENTERLINE OF SOUTH TOBIN S
A DISTANCE OF 240.00 FEET: THENCE NORTH 00'53'30"EAST A DISTANCE OF 30.00 FEET ' L rKvb�r I
TO THE TRUE POINT OF BEGINNING; THENCE CONTINUING NORTH 00 53'30" EAST A c e�
DISTANCE OF 200.00 FEET TO- .A POINT ON THE SOUTHERLY RIGHT-OF-WAY MARGIN OF _IdT E
SOUTH TILLICUM STREET; THENCE NORTH 88 13'00" WEST ALONG SAID SOUTHERLY
MARGIN OF SOUTH TILLICUM STREET A DISTANCE OF 210.00 FEET TO THE POINT OF INTER-
SECTION T
OF SAID SOUTHERLY MARGIN ANDTHE EASTERLY RIGHT-OF-WAY MARGIN OF LAKE f _
AVENUE SOUTH, BEING THE NORTHWEST CORNER OF THE LOT 6 BLOCK 1 OF RENTON REAL
ESTATE CO'S FIRST ADDITION TO RENTON ACCORDING TO THE PLAT THEREOF RECORDED IN Z� I
VOLUME 21 OF PLATS, PAGE 50, RECORDS OF KING COUNTY WASHINGTON; THENCE SOUTH
00`53'30" WEST ALONG SAID EASTERLYMARGIN A DISTANCE OF 100.00 FEET TO THE - +
SOUTHWEST CORNER OF SAID LOT 6; THENCE SOUTH 88013'00 EAST A DISTANCE OF 80.00
FEET; THENCE SOUTH 00 53'30" WEST A DISTANCE OF 100.00 FEET TO A POINT ON THE
NORTHERLY"RIGHT OF WAY MARGIN OF SOUTH TOBIN STREET; THENCE SOUTH W 13'00"
_EAST ALONG SAID MARGIN A DISTANCE OF 130,00 FEET TO THE TRUE POINT OF BEGINNING. \ /
SUBJECT TO EASEMENTS OF RECORD.
SITUATE IN THE CITY OF RENTON, KING COUNTY, WASHINGTON.
JOB NO: 821.
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CALL . BY: JBR
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...�.t _ w:"11 V14
DATE:
STORMWATER DRAINAGE PLAN NOTES:
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1.
ALL CONSTRUCTION SHALL BE 1N ACCORDANCE WITH CITY OF RENTON STANDARD PLANS AND
SPECIFICATIONS,
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2.
ALL PIPE SHALL BE LAID ON A PROPERLY''' PREPARED FOUNDATION ACCORDING TO WASHING-
;-LJI-dG E.L (Ce)
= .15
TON STATE SPEC. 7-02,3(1). THIS SHALL INCLUDE NECESSARY LEVELING OF THE TRENCH
IiPP\OVEJ -ITE (Gi)
_ .85
BOTTOM OR THE TOP OF THE FOUNDATION MATERIAL AS WELL AS PLACEMENT AND COMPACTION
OF REQUIRED BEDDING MATERIAL TO UNIFORM GRADE SO THAT THE ENTIRE LENGTH OF THE
PIPE WILL BE SUPPORTED ON A UNIFORMLY DENSE UNYIELDING BASE. IF THE NATIVEPRCiE:D
svi~tii✓ < A >
MATERIAL IN THE BOTTOM OF THE TRENCH MEETS THE REQUIREMENTS FOR "GRAVEL BACKFILL
FOR PIPE BEDDING" THE FIRST LIFT OF BEDDING MAY BE OMITTED PROVIDED THE MATERIAL
IIIII-D D AREA (A) = 13000.00 Si l 4356' =
0.298; Acres
IN THE BOTTOM OF THE TRENCH IS LOOSENED, REGRADED AND COMPACTED TO FORM A DENSE
UNYIELDING BASE.
3.
ALL BUILDING DOWNSPOUTS AND FOOTING DRAINS SHALL BE CONNECTED TO THE STORM
DRAINAGE SYSTEM.
ri , = TT+C= C
4 l_ A 0 r.nTillji �A�(w:I (D} = 1�0 v �t
�-� c n, `
ni7_
m1, E ice- ti. 01',T Llx'�LR Tom.'_/.1 (T) 10 + D i' 1.5 li ,11.S]
M
tlAlti.
4.
THE STORM DRAINAGE SYSTEM SHALL BE CONSTRUCTED ACCORDING TO THE APPROVED PLANS
RAT, ;_ALL 1".<TT-u:IEI,, ;I} = 1,C4 (EERY uu-KETN-0'N 10
YR. STORM. (-'t;RVE)
WHICH ARE ON FILE :IN THE DEPARTMENT OF PUBLIC WORKS. ANY DEVIATION FROM THE
APPROVED PLANS WILT- REQUIRE WRITTEN APPROVAL FROM THE DEPARTMENT OF PUBLIC WORKS
CITY OF RENTON.
AL. jC; Zz��'-� u�E✓ Rc_'=' <
5.
A COPY OF THESE APPROVED PLANS MUST BE ON THE JOB SITE WHENEVER CONSTRUCTION IS
Ca = {tie = �" -x i x A = 0.06a9-j C.is
INPROGRESS.
6,
PRIOR TO ANY CONSTRUCTION/DEVELOPMENT ACTIVITY THE CITY OF RENTON DEPARTMENT OF
p`T RAID ETC RAGE '`i L >
PUBLIC WORKS INSPECTION SECTION AND ALL OTHER UTILITIES INVOLVED MUST BE CONTACTED.
i o = (Da A :ti Ci = 0.271 cis/Ac
7.
ALL REQUIRED STORM WATER RETENTION/DETENTION FACILITIES MUST BE CONSTRUCTED AND IN
OAK �.G.:^;L TIME T} = -25 + 111762 / QD)T.5 = 55.52
rn q 7
min.
A
OPERATION PRIOR TO ANY PAVING UNLESS OTHERWISE APPROVED BY THE CITY OF RENTON. s = -R_0 T / T + 25 - 40 (1.Oc x = 1-140.90 dint
vt = vs :.. Cix A = 340.15 of
TER"AL SHALL BE COMPACTED TO 95% MAXIMUM DENSITY PIPE BEDDING in , 19 1114
A.
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8.
TRENCH BACKFILL MA i
MATERIAL SHALL BE ONE INCH MINUS CLEAN FREE DRAINING GRAVEL.
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9.
BACKFILL IN PAVED AREAS TO BE COMPACTED BY MECHANICAL TAMPERS TO A MIN MUM OF 95%
'C•-)TTt-
� T R
MAXIMUM DENSITY IN SIX INCH LIFTS (MAXIMUM). ALL OTHER FILL TO BE COMPACTED TO 90%
OF MAXIMUM DENSITY. MAXIMUM DENSITY TO BE DETERMINED IN ACCORDANCE WITH UBC-STAND.
n--=7•
t ivTH
LENIG-1 :
AREA
VLL� `E
ARD NO. 70-1 AND MEASURED IN ACCORDANCE WITH UBC-STANDARD NO.. 70--2 OR APPROVEDLd
EQUIVALENT.
8.94
37.00
37.00
1369.00
340.15
10.
PIPE SPECIFICATION: CMP 16 GAGE MINIMUM WITH TREATMENT #1, TYPE "D" COUPLING PER
APWA STANDARD PLAN NO. 62-B ( OR CMP - ALUMINUM 16 GAGE MINIMUM.)
1.00
37,00
330.95
12245.46
340.1-5
11? . JO
37.00
i1b-5.47
6 1221 J
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11•
CONTRACTOR SHALL DETERMINE SIZE, LOCATION AND ELEVATION OF EXISTING UTILITIES
3.on
37.00
110.31
4Q81.52
340.I
Ld
,PRIOR TO CONSTRUCTION TO AVOID DAMAGE OR DISTURBANCE. CONTRACTOR SHALL VERIFY
.=.00
37.00
82.73
3C61.36
340.'S
ALL ELEVATIONS AND DIMENSIONS THAT WILL A IECT HIS WORK. IF ANY DISCREPANCIES
=.- 0
37.00
66.19
2-449.09
340.15
�s
ARE DISCOVERED CONTACT THE ENGINEER AND THE CITY OF RENTON BEFORE PROCEEDING
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37.00
6=,i5
`�
2040.91
340.15
WITH THE WORK.
d.C9 _7,
> CD
12.
SHALL OBTAIN ALL NECESSARY PERMITS PRIOR TO BEGINNING CONSTRUCTION.
CONTRACTOR{{
REli s RED OR r= i CE
13.
RETENTION BASED ON 10 YEAR STORM (RENTON-SEATTLECURVE).
AREA (A)
= Qa ! C x (2 x G x
3.00 it.)T.5 =
0.00799
si
1
DIA. (D)
= (4 x A / PI}T.5 =
1.14 in dia.
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14.
BENCH MARK: MONUMENT AT CENTERLINE OF LAKE AVENUE AND SOUTH TOBIN STREET;
ELEVATION 25.49
o
Q
15.
AS BUILT PLANS SHALL BE PROVIDED BY THE CONTRACTOR TO THE CITY OF RENTON
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'� TG?M "OB NO�I I -12�'
en0ds SHEET NO.
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