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VERTICAL DATUM: K.C.A.S. — NGVD 1929
BENCHMARK #1:
RAILROAD SPIKE 0.6' UP FROM SOUTH BASE OF TELEPHONE GUY
POLE, 13.5' NORTH & 4' EASIT OF SE BOUNDARY CORNEF "LAND
POWER PARCEL" & t 40' NORTH OF NORTH BACK CONCF'ETE
WALK AT NORTH SIDE OF PETROVISKY RD. (S.E. 176TH ST.)
ELEV. = 432.51
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IE411.70
SZ�ORMW�ITER DETENTION BASIN
B� OF BASIN 413.5
2 YR ELEV. '415.07 Z902 CU. FT.
10 YR 'IWI
Mr. 14 41 FT.
TYPE II MH DRAIN
WITH SHEAR GATE /
SEE DETAIL C-6
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O SLR 0.0 j' �� 418.2
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VERTICAL DATUM: K.C.A.S. — NGVD 1929
BENCHMARK #2:
RAILROAD SPIKE 1.0' UP FROM NORTH BASE POWER POLE AT THE
WEST BOUNDARY LINE LAND POWER PARCEL AT THE SE END OF
THE CUL—DE—SAC AT EAST END SE 173RD STREET.
ELEV. = 425.00
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LANDSCAPE STEP N
SEE LANDSCAPE PLANS FOR DETAILS DATE: e'
NOTE: GRAPHIC SCALE APPROVED:
SEE SHEET C2.7 FOR 20 0 10
CATCH BASIN TOP OF
GRATE, AND INVERT ( IN FEET )
ELEVATIONS. I inch = 20 it.
CALL 48 HOURS BEFORE YOU DIG
1— 800— 424— 5555
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D'AMATO
CONVERSANO
INC.
Consulting l�gineers
610 Market Street, Suite 200
Kirkland, Fwbington 98033-5451
(206) 827-2238 FAX No. (206) 827-8986
=2 Colby Avenue, Suite 717
Everett, Nashington 98201-3527
(206) 252-0454 FAX No. (206) 252-1699
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EXPIRES 10/31 /01-,
SIGNATURE
1171' 1 h5a I
JOB NUMBER
==�
DESIGN
NK�C
DRAIN
GAD
Rumm
ABS
DATE
1/10/97
SCALE
1' = 20'
PLOT SCALE
1 1
SHIM TITi.E
CIVIL
GRADING 8t DRAINAGE
PLAN
— / R-440406