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HomeMy WebLinkAboutTED4003193.3SE 114, SEC. 14, TWP. 23 N., RGE. 5 E, W.M. N NOTICE OF PROPOSED CONSTRUCTION ACTIVITY KING COUNTY Department of Development & Environmental Services 00 Oaksclale Ave SW enton, WA 98055-1219 TYPE OF ACTION : SUBDIVISION PROJECT NO. : L01 P0016A, L03RE0 DESCRIPTION 70 LOT PLAT PROJECTED COMPLETION DATE ESTIMATED 8/04 HOURS OF CONSTRUCTION 7AM-10PM WEEKDA 9AM-10PM WEEKEND KING COUNTY'S CONTACT PERSON : ASSIGNED STAFF PHONE NUMBER (206) 296-0000 DEVELOPER'S CONTACT PERSON KURT WILSON PHONE NUMBER : (253) 539-8116 AFTER BUSINESS HOURS FOR ENVIROMENTAL OR SAFETY RELATED EMERGENCIES: 1-888-437-4771 � 48" R 9 NOTICE OF CONSTRUCTION ACTIVITYSIGN NO SCALE Notice Board Construction SP6CifCGt1017S.' The notice board shall be constructed with 4X4X112" plywood exterior grade, good surface one side. Professionally prepared plastic board overlays, permanently affixed to the board are permissible. The notice board shall display the information as shown in the figure and as specified at the pre — construction meeting. Notice boards may be reused but they must be clean and show no evidence of former wording. 1. Lettering style: He/vetica or similar standard typeface 2 Lettering size: Title should be 3" capita/ letters (NOTICE OF PROPOSED CONSTRUCTION ACTIVITY). Other letters should be 2" letters. See illustration above for use of capitol and lowercase letters 3 Lettering: Black (permanent ink or silk—screen) 4. Background Color: White 5. L ogo. King County emblem, In black The applicant/developer sholl erect the notice board by solidly setting two 4 X4" posts 12 to 24 inches into the ground- or structurally attaching it to an existing building. Post length shall be at least 7 feet above ground. Two 2 x4" diagonal braces should be nailed to the inside bock of the posts and staked at the ground to provide stability against wind or soft soil conditions if posts are less than 24 inches into the ground, The notice board shall be attached to the posts with four lag bolts and washers (3/8 inch dia. and 3" long) No tice BOGrd L OCG t10n.' The notice board shall be located° • At the midpoint on the site street frontage or as otherwise directed by DOES staff maximize 11sibillty At a location 5 feet inside the street property line, a notice board structurally attached to on existing building shall be exempt from the setback provisions, provided that the notice board is located not more than 5 feet from the property line without approval from DOES staff • So that the top of the notice board Is between 7 to 9 feet above grade. • So that it is totally visible to pedestrians 1VG1r2te17G17Ce Gr?d Rer7oVGI of Notice 13oard.- The applicontldeveloper shall maintain the notice board in good condition throughout the site improvement construction period which shall extend through the time of final construction approval by King County DOES or its successor agency orrrisdiction. The notice board shall be removed within 14 days after final constrcution approval, Eary removal of the notice board my result in enforcement actions authorized under King County Code, Title 23 and may delay final construction approval, JOINTS IN FIL TER FABRIC SHALL BE SPLICED A T POSTS USE STAPLES, WIRE RiNGS, OR EQUIVALENT TO ATTACH FABRIC TO POSTS S' MA (POST SPACING MAY BE INCREASED TO 8' IF WIRE BACKING IS USED) FIL TER FABRIC 2 "x2 " B Y 14 Go. WIRE OR EQUIVALENT, IF STANDARD STRENGTH FABRIC USED. VINiMUM 4 "x4 " TRENCH—f BA CKFIL L TRENCH WITH NA TI VE SOIL OR 314 "-1. 5" \ WASHED GRA VEL. 2"x4" WOOD POSTS, STEEL FENCE POSTS, REBAR, OR EQUIVALENT NOTE° FILTER FABRIC FENCES SHALL BE INSTALLED ALONG CONTOUR WHENEVER POSSIBLE NO TES: z �O N 7. The geotextile used must meet the standards listed below. A copy of the manufacturers fabric specifications must be available on —site. AOS (ASTM D-4751) = 30-100 sieve size (0.60-0.15 mm) for slit film 50-100 sieve size (0.30— 0.15 mm) for other fabrics Water Permittivity (ASTM D-4497) — 0.02 SEC min. Grab Tensile Strength (ASTM D-4632) = 180 lbs min. for extra strength fabric 100 Ibs min. for standard strength fabric Grab Tensile Elongation (ASTM D-4632) a 307. max. Ultraviolet Resistance (ASTM D-4355) = 707 min. 2. Standard strength fabric requires wire backing to increase the strength of the fence. Wire backing or closer post spacing may be required for extra strength fabric if field performance warrants a stronger fence. J. Where the fence is installed, the slope shall be no steeper than 2N° 7V, SIL T FENCE DETAIL NO SCALE �- THE SUMP BEHIND THE ROCK CHECK DAM SHALL BE INSPECTED AND CLEANED WHEN COLLECFD DEBRIS EXCEEDS 0.5 FEET g 2" 4" ROCK SEE B L GLOW A SECTION i /' /I/ / FLOW \\I L CHECK DAM SHALL BE KEYED INTO SWALE L = THE DISTANCE SUCH THA T A MINIMUM OF I' POINTS A AND B ARE OF EQUAL 6" MIN ELEVA ON. ROCK MUST COMPLETELY COVER THE BOTTOM AND 24" SIDES OF THE DITCH SEC T1ON ROC/( CHECK DAM NO SCALE FLATTEN SLOPE TO 4: 1 us irnr eluu t r nnne'r f-e• e nnr-rr THICK REASONABL Y WELL GRADED AS FOLLOWS.• MAXIMUM STONE SIZE: 12 INCHES MEDIAN STONE SIZE ° 8 INCHES MINIMUM STONE SIZE ° 2 INCHES ROC/( -LINED SWALE DETAIL NO SCALE 3' MIN. LEVEL BERM 1.25 MIN. IF CONSTRUCTING IN FILL, THE BERM SHALL BE COMPACTED TO AT LEAST 90Z OF MAXIMUM DENSITY. INTERCEPTOR SWALE DETAIL NO SCALE RISER PIPE (PRINCIPLE SPILLWAY) OPEN AT TOP WTH TRASH RACK PER KCSWOM FIGG, 5. 31. C W/ 4" 0 C. MAX SPACING AROUND STEEL LOWER BAND. PROVIDE ADEOUA TE STRAPPING POL YEIHYLENE CAP PERFORATED POL YETHYLENE DRAINAGE TUBING, DIAMETER MIN. 2" LARGER THAN DE IERING ORIFICE, TUBING SHALL COMPL Y WITH ASTM F667 AND AASHTO M294. DEWATFRING ORIFICE, i SCHED. 40 STEEL STUB 2, 5' 1-1/8" DIAMETER EL. 452.50 (CB 2 If) WA TER TIGHT _ COUPLING e 18" DIA. CORRUGA IED METAL RISER TACK WELD r 6" MIN 18" IE 450° 50 (DISCHARGE TO CB 2) L_______� 90T. EL. 450. 00 18" MIN. CONCRETE BASE AL TFRNA 77VEL Y, METAL —WRE -BACKED SIL T FENCE, STAKES AND WIRE MA Y STAKED HA YBALES WRAPPED BE USED TO PREVENT WTH .FIL TER FABRIC OR 36" DIA° MIN. FL OTA TION, EQUIVALENT DIVIDER° (INTAf(E2A) TEMPORARYSEDIMENT POND RISER DETAIL NO SCALE 'oo N 12" MINiMU NOTE' GRADE THE ENTRANCE — THICKNESS AREA 12" LOWER THAN SUBGRADE PRIOR TO 4" 8" QUARRY SPALL S PLACING QUARRY SPALLS GEOTEXTILE S TABILIZED CONSTRUCTION ENTRANCE NO SCALE STANDARD STRENGTH FIL TER FABRIC L— GRATE CA TCH BASIN NOTE ° ONL Y TO BE USED WHERE PONDING OF WATER ABOVE THE CA TCH BASIN WILL NOT CAUSE TRAFFIC PROBLEMS AND WHERE OVERFLOW WILL NOT RESUL T IN EROSION OF SLOPES. Maintenance Standards 1. Any accumulated sediment on or around the �Iter fabric protection shall be removed immediately, Sediment shall not be removed with water, and all sediment must be disposed of as 611 on —site or hauled off —site. 2. Any sediment in the catch basin insert shall be removed when the sediment has filled one—third of the available storage. The filter media for the insert shall be cleaned or replaced at least monthly, 3 Regular maintenance is critical for both forms of catch basin protection. Unlike many forms of protection that fail gradually, catch basin protection will fail suddenly and completely if not maintained properly, METF/L TER FOR CB's NO SCALE 3'I31,tz i,3 ts: 3S lsli'S W WIW W W W z o�����I� Z _ Z Z Z 3z .,,OIJI000iO 0 O'0'0,0 0 N!,hj tl �h III f kr p� � �q_ 1 Z °' Co LU (10 0) o 'IT K U 0► N , V W Z �` � it) I� v cw Z v mCN h �. Z 4 a Z U 4 4 C LU d Z w W Z C� Z w SING COUNTY D.D.E.S. e REVIEW ENG/ ER COMPLE776W DATE SENIOR ENG/NEER COMPLE7701V DA7E ve JAMES H. SANDERS, P.E. APPROVAL DA7F DEWELCIPMENT ENGINEER COMMENTS• �W z� < U w w �I W W > Q Z z O (n Q Q LJ (r SHEET OH 02.31 18 PROJECT NUMBER 04009 N N oL)'I P,- 30 3�