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HomeMy WebLinkAboutR-410914LEGAL DESCRIPTION m O THE NORTH 2 � ACRES OF THE SOUTH EAST QUARTER OF THE N__ SOUTHEAST QUARTER OF NORTHWEST QUARTER IN SECTION 5, TOWNSHIP 22 NORTH, RANGE 5 EAST 5 EAST, W.M IN KING COUNTY WASHINGTON. O EXCEPT THE EAST 30 FEET FOR ROAD. ALSO EXCEPT THE RIGHT OF WAY FOR 106TH AVENUE SOUTHEAST: k 0 I N I AND ALSO EXCEPT THAT PORTION THERE OF CONVEYED TO THE STATE 0 OF WASHINGTON FOR STATE ROUTE 515 BY DEED RECORDED UNDER W RECORDING NO 8906291184: ,,5 SITUATED IN THE CITY OF RENTON, COUNTY OF KING, STATE OF WASHINGTON I I LEGEND REFER TO SHEET #10 FOR TIE IN DETAILS EXISTING PROPOSED DESCRIPTION I W O W Q PROPERTY LINE - TIs INTERCEPTOR SWALE X SILT FENCE 1 OVERFLOW DIRECTION TREE PROTECTION FENCE 0 a CATCH BASIN -TOP & SIDE INLET O LAWN BASIN(D) BY DEVELOPER GRAVELED AREA 3 ' I ,y S J ky I A"fi Cn rJ I 9 6�0 h�•I I`6 gp I Qy �y�a III 0:51.5,I C2 20 J611 II III tom• II y R y ,,y6 h e GEOTECHNICAL NOTES °y�y $�ti �yga 8.1.8 GROUNDWATER INFLUENCE ON CONSTRUCTION U AT THE TIME OF OUR INVESTIGATION, GROUNDWATER WAS ENCOUNTERED W IN TWO OF THE TEST PITS BETWEEN 1 AND 2 FEET BELOW EXISTING D SITE GRADES. THE GROUNDWATER APPEARS TO BE PERCHED BETWEEN FILL OR WEATHERED GLACIAL TILL AND UNDERLYING GLACIAL TILL 0 MATERIALS. j WE ANTICIPATE THAT TYPICAL SUMP EXCAVATIONS AND PUMPING WILL In ADEQUATELY DE -WATER TRENCHES AND OTHER SHALLOW EXCAVATIONS. I 8.1.9 PAVEMENT RECOMMENDATIONS THE NEAR SURFACE SUBGRADE SOILS GENERALLY CONSIST OF SILTY SAND WITH GRAVEL. THESE SOILS ARE RATED AS FAIR TO GOOD FOR ,�°ti6i ge PAVEMENT SUBGRADE MATERIAL (DEPENDING ON SILT CONTENT AND MOISTURE CONDITIONS). WE ESTIMATE THAT THE SUBGRADE WILL HAVE p5i9 A CALIFORNIA BEARING RATIO (CBR) VALUE OF 8 AND A MODULUS OF "61ry rn SUBGRADE REACTION VALUE OF K = 180 PCI, PROVIDED THE W SUBGRADE IS PREPARED IN GENERAL ACCORDANCE WITH OUR j W RECOMMENDATIONS. 6 1.0I WE RECOMMEND THAT AT A MINIMUM, 12 INCHES OF THE EXISTING I >Bo I g1 SUBGRADE MATERIAL BE MOISTURE CONDITIONED (AS NECESSARY) AND k6, C22D) (� RE -COMPACTED TO PREPARE FOR THE CONSTRUCTION OF PAVEMENT SECTIONS. DEEPER LEVELS OF RECOMPACTION OR OVEREXCAVATION AND REPLACEMENT MAY BE NECESSARY IN AREAS WHERE FILL AND/OR LOOSE SOILS ARE PRESENT. THE DEPTH TO SUITABLE SOILS IN THESE AREAS COULD BE UP TO 4 FEET BELOW EXISTING GRADES. "6 I THE SUBGRADE SHOULD BE COMPACTED TO AT LEAST 95 PERCENT OF I i 6ti5� THE MAXIMUM DRY DENSITY AS DETERMINED BY ASTM TEST METHOD �61� I a6ti D1557. IN PLACE DENSITY TESTS SHOULD BE PERFORMED TO VERIFY PROPER MOISTURE CONTENT AND ADEQUATE COMPACTION. HOWEVER, IF " U)�) THE SUBGRADE SOIL CONSISTS OF FIRM AND UNYIELDING NATIVE GLACIAL SOILS A PROOF ROLL OF THE PAVEMENT SUBGRADE SOIL MAY 1 BE PERFORMED IN LIEU OF COMPACTION TESTS. 7' II `b v I t ' THE RECOMMENDED FLEXIBLE AND RIGID PAVEMENT SECTIONS ARE I BASED ON DESIGN CBR AND MODULUS OF SUBGRADE REACTION (K) I I VALUES THAT ARE ACHIEVED, ONLY FOLLOWING PROPER SUBGRADE 6' 11 , PREPARATION. IT SHOULD BE NOTED THAT SUBGRADE SOILS THAT HAVE RELATIVELY HIGH SILT CONTENTS WILL LIKELY BE HIGHLY SENSITIVE TO asa MOISTURE CONDITIONS. THE SUBGRADE STRENGTH AND PERFORMANCE CHARACTERISTICS OF A SILTY SUBGRADE MATERIAL MAY BE 0- Nu)'t 6 �yy.0 Ryeya6�415 :* 10 DRAMATICALLY REDUCED IF THIS MATERIAL BECOMES WET. �o~9DM BASED ON OUR KNOWLEDGE OF THE PROPOSED PROJECT, WE EXPECT �y1' THE TRAFFIC TO RANGE FROM LIGHT DUTY (PASSENGER AUTOMOBILES) i TO HEAVY DUTY (DELIVERY TRUCKS). THE FOLLOWING TABLES SHOW co i THE RECOMMENDED PAVEMENT SECTIONS FOR LIGHT DUTY AND HEAVY ,! DUTY USE. `�� I aI ASPHALTIC CONCRETE (FLEXIBLE) PAVEMENT LIGHT DUTY ASPHALTIC CONCRETE AGGREGATE BASE* COMPACTED SUBGRADE** 2.Oin. 6.Oin. 1 2.Oin. HEAVY DUTY ASPHALTIC CONCRETE AGGREGATE BASE* COMPACTED SUBGRADE** 3.Oin. 6.Oin. 12.Oin. PORTLAND CEMENT CONCRETE (RIGID) PAVEMENT ASPHALTIC CONCRETE AGGREGATE BASE* COMPACTED SUBGRADE** 5.0in. 5.0in. 1 2.Oin. *95% COMPACTION BASED ON ASTM TEST METHOD D1557 **A PROOF ROLL MAY BE PERFORMED IN LIEU OF IN PLACE DENSITY TESTS DETENTION VAULT TO BE USED AS TEMPORARY SEDIMENT POND. AS PER SWDM SECTION D.2.1.5, A 10-YEAR PEAK FLOW USING THE APPROVED MODEL WITH 15-MINUTE TIME STEPS SHALL BE USED FOR SEDIMENT POND. BUT THE DETENTION VAULT IS ALREADY DESIGNED FOR 100-YEAR (SEE ATTACHED ON THIS DRAWING). 6 2 1 �# FA PORTION OF THE NORTHWEST 0SECTION 5, TOWNSHIP 24 NORTH, RANGE 5 EAST. W.M. EROSION AND SEDIMENT CONTROL (ESC) STANDARD PLAN NOTES: CONSTRUCTION SEQUENCE: THE FOLLOWING IS A LISTING OF GENERAL NOTES THAT SHALL BE INCORPORATED IN THE EROSION AND 1. PRE- CONSTRUCTION MEETING. SEDIMENT CONTROL ( ESC) PLAN SET. ALL THE NOTES ON THE LIST MAY NOT PERTAIN TO EVERY 2. POST SIGN WITH NAME AND PHONE NUMBER OF ESC SUPERVISOR PROJECT. THE APPLICANT OR OWNER, HEREBY REFERRED TO AS APPLICANT, MAY STRIKE OUT IRRELEVANT (MAY BE CONSOLIDATED WITH THE REQUIRED NOTICE OF CONSTRUCTION SIGN) NOTES IF NOT APPLICABLE TO THE PROJECT. HOWEVER, THE APPLICANT SHALL NOT RENUMBER NOR EDIT 3. FLAG OR FENCE CLEARING LIMITS. THE REMAINING NOTES. IF ADDITIONAL NOTES ARE NEEDED FOR SPECIFIC ASPECTS. THEY SHALL BE ADDED 4. INSTALL CATCH BASIN PROTECTION AS SHOWN ON PLAN. 5. GRADE AND INSTALL CONSTRUCTION ENTRANCE (S) 6. INSTALL PERIMETER PROTECTION (SILT FENCE) 7. CONSTRUCT SEDIMENT TRAPS AS SHOWN ON PLANS. 8. GRADE AND STABILIZE CONSTRUCTION ROADS. 9. CONSTRUCT SURFACE WATER CONTROLS SIMULTANEOUSLY WITH CLEARING AND GRADING FOR PROJECT DEVELOPMENT AS SHOWN ON PLAN 10. RELOCATE EROSION CONTROL MEASURES OR INSTALL NEW MEASURES SO THAT AS SITE CONDITIONS CHANGE THE EROSION AND SEDIMENT CONTROL IS ALWAYS AFTER THE ESC STANDARD PLAN NOTES. 1. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY OCCURS, A PRE- CONSTRUCTION MEETING SHALL BE HELD AMONG THE CITY OF RENTON, HEREBY REFERRED TO AS THE CITY, THE APPLICANT, AND THE APPLICANT' S CONTRACTOR. 2. THE APPLICANT IS RESPONSIBLE FOR OBTAINING THE WASHINGTON STATE DEPARTMENT OF ECOLOGY ECOLOGY) CONSTRUCTION STORMWATER GENERAL PERMIT, IF IT IS REQUIRED FOR THE PROJECT. THE APPLICANT SHALL PROVIDE THE CITY COPIES OF ALL MONITORING REPORTS PROVIDED TO ECOLOGY ASSOCIATED WITH THE CONSTRUCTION STORMWATER GENERAL PERMIT. IN ACCORDANCE WITH THE CITY'S EROSION AND SEDIMENT CONTROL STANDARDS. DISTURBED AREAS SHALL BE SODDED OR SEEDED AND MULCHED TO ENSURE THAT SUFFICIENT COVER 3. THE ESC PLAN SET SHALL INCLUDE AN ESC CONSTRUCTION SEQUENCE DETAILING THE ORDERED STEPS 11. COVER THE ALL AREA WILL BE UNWORKED FOR MORE THAN SEVEN DAYS DURING THAT SHALL BE FOLLOWED FROM CONSTRUCTION COMMENCEMENT TO POST- PROJECT CLEANUP IN ORDER THE DRY SEASON OR TWO DAYS DURING THE WET SEASON WITH STRAW, WOOD TO FULFILL PROJECT ESC REQUIREMENTS. FIBER MULCH COMPOST PLASTIC SHEETING OR E UIVALENT. Q12. 4. THE BOUNDARIES OF THE CLEARING LIMITS SENSITIVE AREAS AND THEIR BUFFERS AND AREAS OF STABILIZE ALL AREAS THAT REACH FINAL GRADE WITHIN SEVEN DAYS. °"�;a ORIFICE #3(0.82" DIA) 4• VEGETATION PRESERVATION AND TREE RETENTION AS PRESCRIBED ON THE PLAN( S) SHALL BE CLEARLY 14. SEED OR SOD ANY AREAS TO REMAIN UNWORKED FOR MORE THAN 30 DAYS. OVERT OWY 6 ELBOW INV EL=457.21DELINEATED BY FENCING AND PROTECTED IN THE FIELD IN ACCORDANCE WITH APPENDIX D OF THE CITY 15. UPON COMPLETION OF THE PROJECT ALL DISTURBED AREAS MUST BE STABILIZED EL=460.7 MAX. WS=460.7OF RENTON SURFACE WATER DESIGN MANUAL (RENTON SWDM) PRIOR TO THE START OF CONSTRUCTION. AND BMPS REMOVED. ORIFICE #2(,.39" DIA) a".03 ELBOW INV EL=456IA)�•-� DURING THE CONSTRUCTION PERIOD, NO DISTURBANCE BEYOND THE CLEARING LIMITS SHALL BE PERMITTED. THE CLEARING LIMITS SHALL BE MAINTAINED BY THE APPLICANT/ ESC SUPERVISOR FOR THE BMP LEGEND Flr w Frequency Return Periods for Predeveleped. POC #1 � 18.0" RISER� DURATION OF CONSTRUCTION. PRESERVE NATURAL VEGETATION Return Period Flow(cfs) 5. STABILIZED CONSTRUCTION ENTRANCES SHALL BE INSTALLED AT THE BEGINNING OF CONSTRUCTION AND STABILIZED CONSTRUCTION ENTRANCE Y er'r ����MAINTAINED FOR THE DURATION OF THE PROJECT. ADDITIONAL MEASURES, SUCH AS CONSTRUCTED WHEEL WASH SYSTEMS OR WASH PADS, MAY BE REQUIRED TO ENSURE THAT ALL PAVED AREAS ARE KEPT CLEAN ear`s 14J AND TRACK- OUT TO ROAD RIGHT OF WAY DOES NOT OCCUR FOR THE DURATION OF THE PROJECT. IF TEMPORARY AND PERMANENT SEEDING 10 year 0.1 125 SHEAR GATE , -°•MIN. SEDIMENT IS TRACKED OFFSITE, PUBLIC ROADS SHALL BE CLEANED THOROUGHLY AT THE END OF EACH PLASTIC COVERINGS yE;ar 1�89� DAY, OR MORE FREQUENTLY DURING WET WEATHER, AS NECESSARY TO PREVENT SEDIMENT FROM C140 = DUST CONTROL 50 year 0.208101OUTLET ENTERING WATERS OF THE STATE. PIPE 6. ALL REQUIRED ESC BMPS SHALL BE CONSTRUCTED AND IN OPERATION PRIOR TO LAND CLEARING AND/ MATERIALS ON HAND 100 year 0`238021 OR CONSTRUCTION TO PREVENT TRANSPORTATION OF SEDIMENT TO SURFACE WATER, DRAINAGE SYSTEMS 52.70 AND ADJACENT PROPERTIES. ALL ESC BMPS SHALL BE MAINTAINED IN A SATISFACTORY CONDITION UNTIL C15 =MATERIAL DELIVERY STORAGE AND CONTAINMENT Flow Fregluency Return Periacis for Mitigated. PO'C. #�l 0.50%SLOPE0 SUCH TIME THAT CLEARING AND/ OR CONSTRUCTION IS COMPLETE AND POTENTIAL FOR ON- SITE CERTIFIED EROSION AND SEDIMENT CONTROL LEAD Return Period Fiow(cfs) ORIFIC EL PLATE WRH DRILL A 0.5" IN°PLATE „2 EROSION HAS PASSED. ALL ESC BMPS SHALL BE REMOVED AFTER CONSTRUCTION IS COMPLETED AND THE OUTLET PROTECTION ec�r 0 038055 BOLTED TO FLANGE OR DRILLED TO CAP 0�IMPLEMENTATION, SITE HAS BEEN STABILIZED TO ENSURE POTENTIAL FOR ON- SITE EROSION DOES NOT EXIST. THE MAINTENANCE, REPLACEMENT, ENHANCEMENT, AND REMOVAL OF ESC BMPS SHALL BE STORM DRAIN INLET PROTECTION 5 year 0.069954 o a DURING CONSTRUCTION WHEN THE RESPONSIBILITY OF THE APPLICANT. 10 year /ti�y`tj U.7a J DETENTION VAULT IS ACTING 7. THE ESC BMPS DEPICTED ON THIS DRAWING ARE INTENDED TO BE MINIMUM REQUIREMENTS TO MEET SILT FENCErJ year 0.132�181 AS SEDIMENT POND, FILL a THIS AREA WITH J" WASHED ANTICIPATED SITE CONDITIONS. AS CONSTRUCTION PROGRESSES AND UNEXPECTED OR SEASONAL a CONDITIONS DICTATE, THE APPLICANT SHALL ANTICIPATE THAT MORE ESC BMPS WILL BE NECESSARY TO SEDIMENT POND 50 year 0�163185 aa7.1s a GRAVEL. AFTER CONSTRUCTION241TEMPORARY IS OVER, CLEAR THIS AREA ENSURE COMPLETE SILTATION CONTROL ON THE PROPOSED SITE. DURING THE COURSE OF CONSTRUCTION, AREA OF DISTURBANCE 10} ear y 0 195459 BEFORE COMMISSIONING OF THE VAULT' IT SHALL BE THE OBLIGATION AND RESPONSIBILITY OF THE APPLICANT TO ADDRESS ANY NEW CONDITIONS THAT MAY BE CREATED BY THE ACTIVITIES AND TO PROVIDE ADDITIONAL ESC BMPS, OVER AND ABOVE DETENTION VAULT ACT AS MINIMUM REQUIREMENTS, AS MAY BE NEEDED, TO PROTECT ADJACENT PROPERTIES AND WATER QUALITY OF ANY DISTURBANCE TO SEDIMENT POND THE RECEIVING DRAINAGE SYSTEM. TEMPORARY EXISTING DITCHES TO BE 100� © MIN.1 PIPETEMPORARY APPROVAL OF THIS PLAN IS FOR ESC ONLY. IT DOES NOT CONSTITUTE AN APPROVAL OF STORM DRAINAGE FROM SWALE REINSTATED WITH TO DETENTION VAULT8. DESIGN, SIZE NOR LOCATION OF PIPES, RESTRICTORS, CHANNELS, OR STORMWATER FACILITIES. AND TO BE CAPPED (NEAR"Y") TOPSOIL AND SODAFTER SERVICING ROAD & PAVEMENT IMMEDIATELY(TYPICAL) HAVE BEEN COMPLETED. STABILIZED CONSTRUCTION ENTRANCE PER STD 3" CLEAR GRAVEL PLAN21510 RIP RAP 9. ANY DEWATERING SYSTEM NECESSARY FOR THE CONSTRUCTION OF STORMWATER FACILITIES SHALL BE \ SUBMITTED TO THE CITY FOR REVIEW AND APPROVAL. 10. ANY AREAS OF EXPOSED SOILS, INCLUDING ROADWAY EMBANKMENTS, THAT WILL NOT BE DISTURBED FOR p1`�s TWO DAYS DURING THE WET SEASON ( OCTOBER 1ST THROUGH APRIL 30TH) OR SEVEN DAYS DURING THE W DRY SEASON (MAY 1ST THROUGH SEPTEMBER 30TH) SHALL BE IMMEDIATELY STABILIZED WITH THE (n 6 APPROVED ESC COVER METHODS (E.G. SEEDING MULCHING PLASTIC COVERING ETC.) IN CONFORMANCE �� WITH APPENDIX D OF THE RENTON SWDM. Ab1 0 EXISTING SANITARY TEMPORARY SWALE WITH CHECK DAMS W m o$y 1 1 . WET SEASON ESC REQUIREMENTS APPLY TO ALL CONSTRUCTION SITES BETWEEN OCTOBER 1ST AND APRIL RIM EL=463.65 AS FLOW CONTROL MEASURE DURING > �� $_°� 30TH, UNLESS OTHERWISE APPROVED BY THE CITY. a gp. S INV=443.70 CONSTRUCTION (REFER TO SHEET #15 a 12. ANY AREA NEEDING ADDITIONAL ESC MEASURES, NOT REQUIRING IMMEDIATE ATTENTION, SHALL BE y N INV=443.60 DITCH PROTECTION DETAILS) \ �,096 ADDRESSED WITHIN SEVEN (7) DAYS. b15 01 = QI°9 13. THE ESC BMPS ON INACTIVE SITES SHALL BE INSPECTED AND MAINTAINED AT A MINIMUM OF ONCE A 6g GRAVEL ON ACCESS TO BE I... MONTH OR WITHIN 24 HOURS FOLLOWING A STORM EVENT. INSPECTION AND MAINTENANCE SHALL OCCUR a�a�p ��1os MORE FREQUENTLY AS REQUIRED BY THE CITY. 1 6 5' UTILITY NO DISTURBANCE TEMPORARY INLET MAINTAINED ALL THE TIME pp EASEMENT ON NEIGHBOURING PROTECTION AS PER STD TILL ASPHALT PAVING IN 0 14. BEFORE COMMENCEMENT OF ANY CONSTRUCTION ACTIVITY, CATCH BASIN INSERTS PER THE CITY STANDARD LOTS - PLAN-216-30 PLACE r PLAN 216. 30 SHALL BE PROVIDED FOR ALL STORM DRAIN INLETS DOWNSLOPE AND WITHIN 500 FEET OF ?°M6p.�11 �yga Ayg� eyo1 e , , A DISTURBED OR CONSTRUCTION AREA, UNLESS THE RUNOFF THAT ENTERS THE INLET WILL BE CONVEYED �1 601 °p �o R6y g MIN. 10 X10 CONCRETE 11ph TO A SEDIMENT POND OR TRAP. ALL CATCH BASIN INSERTS SHALL BE PERIODICALLY INSPECTED AND �R. WASHOUT AREA AS PER �10y REPLACED AS NECESSARY TO ENSURE FULLY FUNCTIONING CONDITION. p.'� �y0• eA R6p:S Ab °. bpp0 6 y fS i ky n6;6o5ti py o• 06l eta°� ,� �� 1y lye �,' �1a ° 2 e ti6 �ti. tig °�ti " �y / FIG D.2.2.2.A, LOCATION 15. AT NO TIME SHALL SEDIMENT ACCUMULATION EXCEED 2/3 OF THE CAPACITY OF THE CATCH BASIN SUMP. y L• a1h� �' "6 Q61 462.57 �3 � b, °° MAY VARY ���°y ALL CATCH BASINS AND CONVEYANCE LINES SHALL BE CLEANED PRIOR TO PAVING. THE CLEANING 1 ti 1 1 462.3 6�ry 0 A6 p6`y ��• - 110� OPERATION SHALL NOT FLUSH SEDIMENT- LADEN WATER INTO THE DOWNSTREAM SYSTEM. y. Ab3j- 1 A� a6 ' /6 ti �� Abp6-,• r� \ 4Y CYCLONE FENCE WAN _ -71 m_. ��l 0 m = iiiiii�riiviiiiiWA oiiiiiiiniiiiii��riiiiiiiiiiiiii •iiriiiiiiii iiiiiiiiiiiiiiiiiiiiiiii :.y�:�s�i:�.r°i- �': iii ice- ii T , r, ter. ,�� �� ,��� • : • : ; :::::: - - ■ I • • • - - •- - - - • - - - • mom -' may. ay k �6 may. 1 1 LL y 60 Wh6 a •jS �gS y'S 0 W $y Ib ❑MAIL B X MAIL B XE a 9 a�yyyR I... 01 ��6N kI ` A� yy 0 � Ir r 10, SURVEY BENCHMARK CITY OF RENTON BM 1852, BRASS DISC IN CONIC SI NE 4TH ST AND 148TH AVE SE. PUBLISHED 138.614 METERS NAVD 88 = 454.769 FEET CITY OF RENTON BM 2110 - 1/8" BRASS PIN IN 3" CONIC MON IN CASE AT THE SI OF SE 176TH ST AND 116TH AVE SE PUB ELEV = 448.162 NAVD88 SURVEY CENTREPOINTE CONSULTANTS 14209 29TH ST E #105 SUMNER, WA 98390 PHONE: (253) 987-7859 E ENCIRCLED WITH SILT ENCE OR COVERED WITH OILY SHEETS, LOCATION AY VARY (TYPICAL) ANY DEWATERING FROM DEVELOPMENT TO BE TREATED TO AVOID SILT LADEN WATER DISCHARGE TO STORM DRAINAGE SYSTEM ANY DISTURBANCE TO LOTS TO BE STABILIZED WITH MULCH OR VEGETATION IMMEDIATELY ETAINED WITH SILT FENCE PER YPICAL) STD - PLAN-214-10 NO DISTURBANCE ON NEIGHBOURING LOT NO HAZARDOUS MATERIALS ARE PERMITTED ON THE SITE. REFER TO SWPPS NOTES SEE SHEET 15 OF 42. F OFFSITE TREES YPICAL) �N>■1]6llol:4:0_1RySII EXISTING 8' SANITARY EASEMENT THE CONTRACTOR SHALL VERIFY THE LOCATION OF ALL EXISTING UTILITIES PRIOR TO ANY CONSTRUCTION. AGENCIES INVOLVED SHALL BE NOTIFIED WITHIN A REASONABLE TIME PRIOR TO THE START OF CONSTRUCTION. INFORMATION SHOWN ON THIS DRAWING REGARDING EXISTING UTILITIES IS COMPILED FROM TOPOGRAPHY SURVEY BY CENTREPOINTE PLAN SCALE. 1 "=40' CONSULTANTS. PRIOR TO CONSTRUCTION, THE CONTRACTOR SHALL EXPOSE AND CONFIRM THE LOCATIONS AND ELEVATIONS OF ALL EXISTING UTILITIES, AND ADVISE THE ENGINEER OF ANY POTENTIAL CONFLICTS. CONSULTANT MAINLAND ENGINEERING CONSULTANTS CORPORATION UNIT 206 8363 128TH STREET SURREY, B.C. V3W 4G1 TEL: (604) 543 8044 FAX: (604) 543 8104 EMAIL: CIVIL@MAINLANDENG.COM 4. ISSUED FOR REVIEW SGCj 2023 03 14 3. ISSUED FOR REVIEW SGCJ 2022/12/02 2. ISSUED FOR REVIEW SGCI 2021 /04/14 1. ISSUED FOR REVIEW AB 2020/06/19 IN 0. REVISION BY DATE SURVEYED: SURVEYED SCALE: II I 1 -40 ONE IN VERTICAL: NAVD 1988 HORIZONTAL: NAD 1983/1991 DATUM AB DESIGNED: EM AB AB DRAWN: MK AB CHECKED: RM AT FULL SCALE IF NOT ONE INCH SCALE ACCORDINGLY A P P R APPROVED: AB 1° 16. ANY PERMANENT STORMWATER FACILITY LOCATION USED AS A TEMPORARY SETTLING BASIN SHALL BE MODIFIED WITH THE NECESSARY ESC BMPS AND SHALL PROVIDE ADEQUATE STORAGE CAPACITY. IF THE TEMPORARY FACILITY IS TO ULTIMATELY FUNCTION AS AN INFILTRATION SYSTEM IN ITS PERMANENT STATE, THE TEMPORARY FACILITY SHALL BE ROUGH GRADED SO THAT THE BOTTOM AND SIDES ARE AT LEAST THREE FEET ABOVE THE FINAL GRADE OF THE PERMANENT FACILITY. 17. AREAS DESIGNATED ON THE PLAN( S) CONTAINING EXISTING STORMWATER FACILITIES OR ON- SITE BMPS AMENDED SOILS, BIORETENTION, PERMEABLE PAVEMENT, ETC.) SHALL BE CLEARLY FENCED AND PROTECTED USING ESC BMPS TO AVOID SEDIMENTATION AND COMPACTION DURING CONSTRUCTION. �10$ 18. PRIOR TO THE BEGINNING OF THE WET SEASON ( OCTOBER 1ST), ALL DISTURBED AREAS SHALL BE INSPECTED TO IDENTIFY WHICH ONES SHALL BE SODDED OR SEEDED IN PREPARATION FOR THE WINTER RAINS. DISTURBED AREAS SHALL BE SODDED OR SEEDED WITHIN ONE WEEK OF THE BEGINNING OF THE WET SEASON. AN EXHIBIT OF THOSE AREAS TO BE SODDED OR SEEDED AND THOSE AREAS TO REMAIN UNCOVERED SHALL BE SUBMITTED TO THE CITY FOR REVIEW. 19. PRIOR TO FINAL CONSTRUCTION ACCEPTANCE, THE PROJECT SITE SHALL BE STABILIZED TO PREVENT ��1' SEDIMENT- LADEN WATER FROM LEAVING THE PROJECT SITE, ALL ESC BMPS SHALL BE REMOVED, AND GASOVALVE STORMWATER CONVEYANCE SYSTEMS, FACILITIES, AND ON- SITE BMPS SHALL BE RESTORED TO THEIR FULLY FUNCTIONING CONDITION. ALL DISTURBED AREAS OF THE PROJECT SITE SHALL BE VEGETATED OR OTHERWISE PERMANENTLY STABILIZED. AT A MINIMUM, DISTURBED AREAS SHALL BE SODDED OR SEEDED AND MULCHED TO ENSURE THAT SUFFICIENT COVER WILL DEVELOP SHORTLY AFTER FINAL APPROVAL. 3.0' MULCH WITHOUT SEEDING IS ADEQUATE FOR AREAS TO BE LANDSCAPED BEFORE OCTOBER 1ST. ROAD 20. ROCKERIES ARE CONSIDERED TO BE A METHOD OF BANK STABILIZATION AND EROSION CONTROL. DEDICATION ROCKERIES SHALL NOT BE CONSTRUCTED TO SERVE ASRETAINING WALLS. ALL ROCKERIES IN CITY ROAD 10'.0 RIGHTS- OF -WAY SHALL BE CONSTRUCTED IN ACCORDANCE WITH CITY STANDARDS. ROCKERIES OUTSIDE EASEMENT OF ROAD RIGHTS- OF- WAY SHALL BE CONSTRUCTED IN ACCORDANCE WITH THE INTERNATIONAL BUILDING CODE. Igo CALL 48 HOURS BEFORE YOUR DIG CA 811 I CITY OF NkSJRENTON • Planning/Building/Public Works Dept 2023-03-15 R-41091 4 N 00 N LO 0 0 0 J 7 U 0 N 0 0 0 0 Ln 0 0 0 0 IN COMPLIANCE WITH CITY OF RENTON STANDARDS DEVELOPMENT ENGINEERING 0 � �z Michael Sippo 03/30/2023 Lil MADUENO SHORT PLAT 19805 108TH AVE SE, RENTON, WA 98055 TEMPORARY EROSION AND SEDIMENT CONTROL & SWPPS PLAN Q Q U I I W DATE: 2023/03/14 FIELDBOOK: PAGE: � DRAWING NO: 14 SHEET: 14_OF_42 0-