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HomeMy WebLinkAboutR-392308N 0� co 0 W I- v rr Q w n z z u Q w 0 H w � Q Q oC J Q I I I I X z 0 CD z Y m 6 0 U 11) N 0 E 0 0 a 1n 0 I N N I Ln 0 i 0 Ln Ln 0 i 0 0 0 0 w j zm LU N ASBUILT TESC PLAN FOR ALL UIM AT TIFFANY PARK hV PTN OF THE W1/2 & SE1/4 OF THE SE1/4 AND PTN OF THE NE1/4, OF THE SW1/4 OF SEC. 21, TWP. 23 N., RGE 5 EAST, W. M. CITY OF RENTON KING COUNTY STATE OF WASHINGTON TRACT E 0 25 50 100� ..• .. rommm 4' ACT �,... . TR F WETLAND D TREE 444 ' ON 31 CATEGORY 2 FENCING. OSEE TISHEETS 44 _ . , ��'/� _ ^' 64-68 FOR DETAILS at I;VSTALL V-DITCH Air�CLEARING LIMITS 3 ALONG NGPE FENCE. • I: W/ROCK CHECK DAMS \� 4. ` ��� PER DETAIL SHEET 10.4 ` 33 34 �: �� INSTALL NGPE FENCE / r (TYP.)` AS SHOWN PER DETAIL / 4�, ` " SHEET 9. �••' .�_ '/�,,,``\ \\ � Ada• ... � � /•.• C// • T G 4,Zg EN SPACE / 56 55 '~''� T' - 4 �' 54 - S � �5 53 _\� �` + �- 52 - 36 .. - �� 37. ....... ........ 50:: 38. ° -� 4� 3 �( / / 12,,..DI..�. 17. MIN `� �,�? / N� ``O ... 48.. 4 �N ... .. '. _-- 5 N� I 60 .�.../.. 4 - , GO 61 " 622 TRCT M F, 59. 8 = . 1 I 1 / . 2 D C� % MIN' • CLEARING LIMITS / y �` -� _ _ _ , - , ALONG TREE �., / . - 64 \ 42 . •• .��=' � � `.. ��� i • ... • •.... .....� � . • � / ► i •. i / PROTECTION FENCE. 4 4 •' .... ' / . .. 65 ► �.'' INSTALL V-DITCH \\ / / �♦ .1�� ��' TREE PROTECTION W ROCK CHECK DAMS., 42� / 20 ► TRACT I FENCING. SEE SHEETS PER DETAIL SHEET 1 �' � ► 1 ` �,, 64-68 FOR DETAILS lTYP,.). k 4 ......... . • '' / ► ...../...�,,. . 8.. ........ 40 8.6 - • i , ©. RSA 4 \ .......... ...... 71 70 0 ,.; ; \ ; ;;� �� �' .. \� . i 12" DI @...'I%•"MIN \ \ ♦ .... \ / ... \ \ : 72 69FILTER FABRIC FENCE INSTALLATION NOTES: ~� 45 %85 ;. ; A \ \: \ ♦♦ �� PROPOS D PERMEABLE i 6 �!: ; 1. THE FILTER FABRIC SHALL BE PURCHASED IN A CONTINUOUS \� �;\ �\ `♦;..: BARRIE / LOCATION. �> ROLL CUT TO THE LENGTH OF THE BARRIER TO AVOID USE OF \ 12" DI Ca➢ 1% MIN 4�Q� ` ♦ / / . �'�%''� �� JOINTS. WHEN JOINTS ARE NECESSARY, FILTER CLOTH SHALL BE ...... ,. 46 �.... \ \\ `\ �! �,' ; � � 1 .. - •- • P ° ' ��, y �. � .. � ��� ''•.,Q� SPLICED TOGETHER ONLY AT A SUPPORT POST, WITH A MINIMUM 6-INCH OVERLAP, AND BOTH ENDS SECURELY FASTENED TO THE TESC POND 2 _ POST SURFACE AREA AT TOP POND = 2,400 SF ' 41�' ..'. /:' \`\ WETLAND C 2. THE FILTER FABRIC FENCE SHALL BE INSTALLED TO FOLLOW THE SURFACE AREA AT BOTTOM = 315 SF �� . % :X \ \ CATEGORY 2� .• . \ \ _�:......:.. CONTOURS (WHERE FEASIBLE). THE FENCE POSTS SHALL BE TOP OF POND = 41 1.10 ���^ �' ''' \ .. 7`6 \`\ / ��ND B ' SPACED A MAXIMUM OF 6 FEET APART AND DRIVEN SECURELY MAX WATER SURFACE = 410.10 �i \ \\ BOTTOM OF POND = 406.10 �' ��'.�__ '�` k�o 74 \\ \`\ Iy.. CATEGORY 3 ( ) IE OF RISER = 406.604_1� � 4��1 � � � J �,, ,, ��. LOWER PAD OF LOT INTO THE GROUND MINIMUM OF 30 INCHES �✓ 46 CANNOT BE ROUTED �' \ \ \ CLEARIN�- �-�I ITS / TO SEDIMENT POND. SILT 3. A TRENCH SHALL BE EXCAVATED, ROUGHLY 8 INCHES WIDE AND ORIFICE DIAMETER = 1.83" �� �� �.\ \: , 12 INCHES DEEP, UPSLOPE AND ADJACENT TO THE WOOD POST 3, TA( ALONG �TREI �A FENCE WILL PREVENT WETLAND y k PROTECTION PENCE: TR CONTAMINATION. TO ALLOW THE FILTER FABRIC TO BE BURIED ,AACT K 414_i. \ 7�\\ :__�\ 4. WHEN STANDARD STRENGTH FILTER FABRIC IS USED, A WIRE CLEARING LIMITS MESH SUPPORT FENCE SHALL BE FASTENED SECURELY TO THE z Z ' .o •: �'.' f. •y°� % /��'• ALONG SILT FENCE. UPSLOPE SIDE OF THE POSTS USING HEAVY DUTY WIRE STAPLES 81 TRACT TREE PROTECTION INSTALL BRIGHT ORANGE AT LEAST 1 INCH LONG, TIE WIRES OR HOG RINGS. THE WIRE 41423 I, ' EN F DETAILS SILT A L SHEET g OWN PER AL S . . •... �• S MORE THAN 36 INCHES ABOVE THE ORIGIN � � � , \♦�. SHALL EXTEND INTO THE TRENCH A MINIMUM OF 4 INCHES AND FENCING SEE SHEETS SILT FENCE AS SHOWN P - \ `� 6 68 OR DE L DETAIL H r SHALL NOT EXTEND IFS F� 6�'S T �\ GROUND SURFACE 10NA L 12'.' DI 0 1 % MIN CY �a EMERGEN /ZD/21 0 41�, ♦_ _ i OVERFLOW ��b 5. THE STANDARD STRENGTH FILTER FABRIC SHALL BE STAPLED OR 11 \ \ EROSION CONTROL WET SEASON' NOTES WIRED TO THE FENCE, AND 20 INCHES OF THE FABRIC SHALL BE 9. SEDIMENT RETENTION IS REQUIRED UNLESS NO OFFSITE DISCHARGE '' •.. `� 78 EXTENDED INTO THE TRENCH. THE FABRIC SHALL NOT EXTEND %� IS ANTICIPATED FOR THE SPECIFIED DESIGN FLOW. cn CLEARING LIMITS I "o� ► MORE THAN 36 INCHES ABOVE THE ORIGINAL GROUND SURFACE. . w \ i. �' 1. ANY SITE WITH EXPOSED SOILS DURING THE WET SEASON (OCTOBER ALONG TREE ` ""� �' 10. PROPERLY FILTER FABRIC SHALL NOT BE STAPLED TO EXISTING TREES z r: / \ , 1 TO APRIL 30) SHALL BE SUBJECT TO THE SPECIAL PROVISIONS Z PROTECTION FENCE. ��. ✓ `: \ ._ , \�4 ♦ r BELOW. THESE SPECIAL PROVISIONS ARE REQUIRED IN ADDITION L 6 O z N ALLrA DISTURBIED FAREAS IOFMATHETSI E• ALONG METEROWPROTECTIONF ARE USE THE WIRE MESH SUPPORT FENCE MAY BE ELIMINATED N G �� = `� .. .....q./.. TO THE STANDARD ESC COVER MEASURES. THESE PROVISIONS E DRA _ J WHEN STRENGTH FILTER FABRIC AND CLOSE POST SPACING . ♦ �O 79 CLEARING LIMITS INCLUDE COVERING ANY NEWLY SEEDED AREAS WITH MULCH AND FILTERS RUNOFF AND REDUCES THE AMOUNT OF SEDIMENT THAT MAY a ......� ` �. 4�4' SILT FENCE E IT N IN SUCH A CASE, THE FILTER FABRIC IS STAPLED OR WIRED w TREE PROTECTION / ° i ALONG IDENTIFYING AND SEEDING AS MUCH DISTURBED AREA AS POSSIBLE LAVE T E SITE. x o z FENCING. SEE SHEETS ° �......... TEMPORARY CBS ALL OTHER PROVISIONS OF J H IT DIRECTLY TO THE POSTS WITH 64-68 FOR DETAILS �� _:, RIM = 409.01 THE WET SEASON• MBER 23 IN ORDER TO PROVIDE GRASS COVER FOR 11. SURFACE WATER CONTROLS ARE REQUIRED UNLESS NO OFFSITE STANDARD NOTE 5 APPLYING > N z PRIOR TO SEPTE TL �'�o IE = 405.99 (NE) DISCHARGE IS ANTICIPATED FOR THE SPECIFIED DESIGN FLOW. Q o N 7. THE TRENCH SHALL BE BACKFILLED WITH 3/4-INCH MINIMUM z - IE = 405.99 (S) 2. THE ALLOWED TIME THAT A DISTURBED AREA CAN REMAIN UNWORKED p 00 N - > INSTALL BRIGHT ORANGE ¢0 12. PHASING AND MORE CONSERVATIVE BMPS MUST BE EVALUATED FOR DIAMETER WASHED GRAVEL Z cfl aI w z SILT FENCE AS SHOWN PER WITHOUT COVER MEASURES IS REDUCED TO TWO (2) DAYS, RATHER I I wuj / . \ INSTALL NGPE FENCE CONSTRUCTION ACTIVITY NEAR SURFACE WATERS. N DETAIL SHEET 9. TREE PROTECTION \ 4� ► / THAN SEVEN (7) DAYS. 8. FILTER FABRIC FENCES SHALL BE REMOVED WHEN THEY HAVE Q Ln L z Z \ �.. Q /- AS SHOWN PER DETAIL � � � � FENCING. SEE SHEETS SHEET 9. 13. ANY RUNOFF GENERATED BY DEWATERING SHALL BE TREATED THROUGH SERVED THEIR USEFUL PURPOSE, BUT NOT BEFORE THE UPSLOPE N N z Z 64-68 FOR DETAILS \` \ / 3. STOCKPILES AND STEEP CUT AND FILL SLOPES ARE TO BE AREA HAS BEEN PERMANENTLY STABILIZED Ln ^ ^ �'-' w \ 4 ` `. CONTRACTOR TO CONSTRUCTION OF A SEDIMENT TRAP WHEN THERE IS SUFFICIENT u7 u7 \ j� / PROTECTED IF UNWORKED FOR MORE THAN 12 HOURS. N Z > PROVIDE STEEL PLATES SPACE OR BY RELEASING THE WATER TO A WELL -VEGETATED GENTLY N N �O CEDAR RIVER / -� / ACROSS EXISTING SLOPING AREA. SINCE PUMPS ARE USED FOR DEWATERING SIT MAY 9. FILTER FABRIC FENCES SHALL BE INSPECTED IMMEDIATELY AFTER Y �� N \ 4. COVER MATERIALS (PLASTIC, MATTING, ETC.) SUFFICIENT TO EACH RAINFALL AND AT LEAST DAILY DURING PROLONGED PIPELINE R/W t y ' ` WATERMAINS DURING BE POSSIBLE TO PUMP THE SEDIMENT -LADEN WATER WELL AWAY FROM ` \ COVER ALL DISTURBED AREAS SHALL BE STOCKPILED ON SITE. RAINFALL. ANY REQUIRED REPAIRS SHALL BE MADE IMMEDIATELY LEGEND Vte�* ♦� � /� � CONSTRUCTION. THE SURFACE WATER SO THAT VEGETATION CAN BE MORE ��� �EFFECTIVELY UTILIZED FOR TREATMENT. A STRAW BALE FILTER 0 '� EX 26' DRIVEWAY / F. DAYLIGHT TESC POND 2 5. ALL AREAS THAT ARE TO BE UNWORKED DURING THE WET SEASON �� / ♦ _ SHALL BE PLACED AROUND THE DISCHARGE FROM THE DEWATERING vv s PROPOSED SILT FENCE �� GO ��� s� / y� _ 4 OUTLET TO 124TH PL SE SHALL BE SEEDED WITHIN ONE WEEK OF THE BEGINNING OF THE WET PUMP. IF THERE IS NOT SPACE FOR A SEDIMENT TRAP OR 25 FEET CITY OF RENTON .. GUTTER FLOWLINE. SEASON. ` PROPOSED ORANGE G� �``� °A %' ' \ �� OF SUITABLE VEGETATION, OTHER FILTRATION METHODS SHALL BE pEPAFiTMENT OF PUBLIC WORKS J 2 SAFETY FENCE V �♦ g:� ` -'�� EX 26' DRIVEWAY REQUIRED. ♦ �� a , �' 6. MULCH IS REQUIRED TO PROTECT ALL SEEDED AREAS. PROPOSED CLEARING LIMITS k1l♦Ma,;.....3�°. !' 14. THE FREQUENCY OF MAINTENANCE REVIEW SHOULD BE INCREASED APPROVED BY DATE w a •' INSTALL CONSTRUCTION ` V ( ) FROM WEEKLY TO DAILY WHERE WARRANTED. PROPOSED TEMPORARY ♦ �M - ' ,' _ ♦ 7. FIFTY LINEAR FEET OF SILT FENCE AND THE NECESSARY STAKES c� 0 OSEDI ,r<�.- ENTRANCE PER DETAIL ON PER ACRE OF DISTURBANCE MUST BE STOCKPILED ON SITE. _ s ♦��� APPROVED BY DATE A`' DITCHES W/ CHECK DAMS •..'�`��.. ease... --` • SHEET 9. PROPOSED TEMPORARY "a moo..°a ♦ ��� 8. CONSTRUCTION ROAD AND PARKING LOT STABILIZATION ARE APPROVED BY DATE b► 5J STORM PIPE ° REQUIRED FOR ALL SITES UNLESS THE SITE IS UNDERLAIN BY a 0 CON PROPOSED CONSTRUCTION 'a '"✓t\`O� COARSE -GRAINED SOIL. APPROVED BY DATE ENTRANCE"`;a/ / `�96 a` "'. -i 'a ` SURVEYED: SCALE 7 DATE: / �♦ BCE HORIZ: 1 "=50' HORIZON ALL NAD D1983/1991 TESC PLAN 11 /20/2018 pa C PROPOSED CONTOURS - - -330- �= �'~' .- INSTALL TEMPORARY ,♦ DESIGNED: �� CITY OF ASBUILT - ALLURA AT TIFFANY PARK CATCH BASIN ♦ VER: N/A FIELDBOOK: .' o BJT PROPOSED KEYSTONE WALL 92 ." PROTECTION PER DETAIL ♦RENTONPAGE: "�- ON SHEET 9. AGO 2 REVISED PER CITY COMMENT BK 1 20 1 BJT DRAWN MAINVUE WA LLC EXISTING TREE TO REMAIN zj RAG oNE INCH DRAWING N0: a=� ��/ 1 ASBUILT BK 11 2 18 BJT CHECKED: DATUM ��. I AT FULL SCALE Plonning/Building/Public Works Deft. 1110112TH AVE NE SUITE 202 • EXISTING MAJOR CONTOUR' • • • •.330• • • • • • % S RAG IF NOT ONE INCH R 7 EXISTING MINOR CONTOUR ... N0. REVISION BY DATE APPR APPROVED: BELLEVUE WA 98004 SHEET: w OF :6� 3�2 BJT SCALE ACCORDINGLY ' VSt M W IRI-1319121310F8