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HomeMy WebLinkAboutR-404508510 oa a N Q oc an L0 0 0 s 0 0 C. 1 SEE.B1HEET RD-02 INSTALL 20' CHAINLINK GATE. SEE DETAIL, SHEET DT-02. sum SIMON A PORTION OF TIME S.W. 1 /4 OF SECTION 33, TOWNSHIP 23 NORTH, RANGE 5 EAST, W.M. v ' FB a v A • �i A ---C.B. g28, TYPE 2-60"000NTOL STRUCTURE I SEE DETAIL ON SHEET DT-03 CHEWINGS FESCUE (Festuca rubra commutata) 40% 97 80 38+0 39+00 \ 1. I I I 1 WHITE DUTCH CLOVER (Triiitium repens) 10% 96 90 37+00- 11 � ROAD A / • - EROSION CONTROL SEED MIX FOR POND SLOPES PORTIONS PERCENT PERCENT NAME BY WEIGHT PURITY GERMINATION REDTOP (Agrostis albs) 10% 92 90 ANNUAL RYE (Lotium ,miM fiorum I 40)' 98 90 �- - • (SEE SHEET RD-02) ITI -12 L.F., 24'0 S.D. • - • I I I STA. 203+67.12, 16.49' LT. --------------- 1--- C.B. �1& TYPE "' ` 60"� `::::::.:. / --_._ - - -. ---- •____ -1- 502 --� � - � = o _..-- -- �, \ / • STA. 6+74.97, 23.21' RT. PROVIDE FROP-T PER KCRS DWG # 2-025 W/ SOLID LOCKING LID ;. ::: - - - OVERFLOW ELEV. = 501.75 • . • ,•,•,•,•, -°�' - 49 I 33 L.F., 24"0 S.D. .....2:1.. j - I.E.=494.25, `18'� I I I I HYDROSEED SIDE III I `�. • SLOPES PER MIX, ----------------------- `'�A • I I I I THIS SHEET (TYP.) CELL #1LO ` • I C, WETPOND I N • i j 1 .........:.:. ' 1 I �, I CELL #2 • I I 4l ` POND BOTTOM\ i 1 •. •• ••�.� ®••• ••• •• •• . t. •••••.•••DETENTION•••••••••••.••••.•• 4••s• • ..� .. • ... • .... E L. -- 491.25, u 4 9 ......... , \ w POND BOTTOM • ` J I j �L. �•�2.50 I.E.=495.25, 18" I INSTALL 7.5'X'I2'..:...::::::::::::::::::...:::;:::::::::::::::: I I RIP -RAP PAD, 2.5 .uj I � I • DEEP ' ;•.• .;•;• . : I I u') 12 L.F., 18 o S.D. I 4 I • I I I PROPOSED CHAIN LINK .� 4 I j FENCE. SEE DETAIL, ( �� 496 SHEET DT--03. 498 ^ •---- \' -_.. - ._.._ �. ---- --_- ----- --- ----` - �. �f - ±zm= - _ �.� - - -- 0 2:: •ems ---._ .w. _ -� ate. 'U 41 L.F., 18"0 S.D.— i 6' BERM ;�Tl'P.) 2:1 POND SIDE SLOPE, TYP. LPER GEOTECHNICAL REPORT \ A B NOTE: THE DETENTION POND AND; WATER ')UA.J'Y FACILITY SHALL BE VEGETATEED PER THE REQUIREMENTS SET FORT; ' IN THE 2005 S.W.D.M. PG. 5-22 AND P((. 6-76, "PLANTING REQUIREMENTS." DETENTION POND GALE:1-=20- /%, k roA, r STORAGE VOLUMES (CUBIC FEET} REQUIRED PROVIDED AS CONSTRUCTED DETENTION 95,963 CF 97,111 CF WATER QUALITY 26,763 CF 33,043 CF R/W R/W FEN E FENCE EMERGENCY EL OVERFLOW ATION 502.42 SPILL AY EXISTING GROUND 100-YR., 24-HR. S. EL. - �01.75 15' ACCESS ROAD I _ 15 ®S=6.67- , 7. 2 - -- ......... . 3 BERM 3 TOP OF '1!........... _ Q. STORAG .:.............................. EL. = 496 18"0 S. 25 ......_ . 4 1I MENT STORA - 41 (F., S-1.88% 18" 0- S. I)__ 1 ...... E LJ - C.B. 29 TYPE 2 5 .............................. BOTTOM 0 POND ELI= 492.50 .. 1 .... . 1' SEDI .............. • . BOTTOM OF ENT STORAG ............... CEL -- #2 - 1.5' SED - POND EL. = 491.25 _ - _�- #1 --- - - ---- I T.G. :T I.CELL I.E. - 28 TYPE 2,60"0 4 03.36 121 495.48, 1 0 - I CONT PER I.E. OL STRUCTU ETAIL SHEET 4 61.25, 18' E DT-03 0 - - 30+60 31 +00 ,51 +4U J 1 -t- 0 U JLT Lv SECTION C-C SCALE: 1"= 20' HORIZ. 1 = 5' VERT. %JZ_ T VlJ vv i vv 12' ACCESS TO CONTROL STRUCTURE i Ind U) Q ,� I U n II\ Of o/ w I W �I = I I \NLLJ liI w C 1 V) i 510 I• .. ... • it .. • ►I O II INSTALL 20 CHAINLINK GATE. SEE DETAIL, SHEET DT-03. I I 500 1+ INSTALL '15' WIDE I IOVERFLOW SPILLWAY PER DETAIL ON I SHEET DT-04. I� I C.B. #29 j SEE SHEET RD-05 i I I GRADE TO DRAIN 10 INTO EXISTING DITCH 4�® o IIII \ MATCH EXISTING DITCH ELEVATION = 499.11 f L- MATCH EXISTING DITCH ELEVATION = 500.87 MATCH EXISTING DITCH 51,0 ELEVATION = 500.89 N• 490 HORIZONTAL DATUM: WASHINGTON STATE PLANE COORDINATES, NORTH ZONE, NAD '83/'91, BASED ON TIES TO KING COUNTY PUBLISHED CONTROL. VERTICAL DATUM: NAVD '88, BENCH MARK - 4"X4" CONCRETE MONUMENT WITH LEAD AND TACK IN CASE LOCATED AT THE INTERSECTION OF SE 192ND Sf AND 116 AVE SE. ELEVATION = 514.98 FEET. FBI 20 10 0 20 40 SCALE: 1 " =20' CONTOUR INTERVAL = 2' R/W I i PIDEWALK � FENCE - ---- ' - I - -FENCE -- R/W -- ROA A EMERGENCY OVERFLOW SPILLWAY ELEVATION 502.42 ---- EXISTING GROU D - - -- -- ------ -------- 12 1-F., 24"0 .D. V 1 0-YR., 24-141R. W.S. EL. = 501.75 ---- - ill 2 2 2 CAP END. S S 3. i 1. E. = 5 0.00, 12"0 9 S p.................F............... TOP OF W.Q STORAGE E .=496.25 ......... 2i "0 S.D. + al. EDIMENT ST RAGE BOTTOM F POND EL.rt491.25 2-60"0 PROVIDE -- _ C.B. 1 TYPE 2-48"01 1C.B.. # 1 A TYPE ------_; -- _ T.G. _ 5 4.78 FROP-T PER KCRS DWG 2-075 I.E. = 4 6.26, 12 � r+� I SOLID LOCKING LID i - - I.E. = 4 5.26, 24'0 T.G. = 504.60 j �= 494.99, 1 0 ELL #1 I 510 500 "i 10+60 1 1 +00 1 1 +40 Q E CT I O -A SCALE: 1"= 20' HORIZ. 1"= 5 VERT. 11 +80 FENCE R/W IDEWALK EMERGENCY --OVERFLOW- PILLWAY------------------ FENCE - - -- - I- - ------ - RO �D A ELEVATION 02.42 I EXISTING GR UND 100-YR., 4-HR. W.S. EL. = 501.75 _ I - - 2 -- 2 - -1 1� yTOP OF W _ Q. STORAGE EL. = 496.2 ................ OTTOM Oq POND EL. r 492.50 i CELL # 20+60 21 +00 21 +40 SECTION - SCALE: 1'- 20' HORIZ. in = 5' VERT. DING COUNTY D.D.E.S. Re iew gin er Completion 0 Se a Completion D b )f ES S P. E. Ap ro I Do D MENT ENGINEER 510 500 490 510 500 490 Comments: