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Home My WebLink AboutTED4003193.1 (2)SE 114, SEC. 14, TWP. 23 N., RGE. 5 E., W.N. EX. PROP LINE 30' EXIST :'4/W 30' (20'*) R/W DEDICA TION 10' UTILITY 60' S0'* FUTURE R EA SEMEN; 18' (16'*) 5' TYP VARIES-0 5' ROAD 2.1 VARIES (8. 5*)1ARIES (5'*) L? 5 210.1 27. \ \ \ i\r DIMENSIONS SHOWN Wl TH � SHALL BE VALID BETWEEN 5" THICK STA. 2f50 TO 158TH A VE. SE. VERT CONC SEE SURFACING CONC SIDEWALK. CURB & GUTTER SECTION OPTIONS ** TRANSITION BETWEEN SEE DETAIL SHT C3 31 36' WIDE ROAD & SHEET C3.31 32' WIDE ROAD OCCURS SECTIONA A BETWEEN STA 1f76 & NEIHHORHOOD COLLECTOR STA 2f50. SE,136th STREET (BETWEEN 156THA VE SE & 158THA VE NO SCALE FUTURE ROAD CROWN ROAD 48, FUTURE R/W 30' EX. R/W 21' 14' EX PROP, LINE 10' UTILITY I EASEMENT 18' RAW DEDICATION 11' s �l. 5 16' 0.51- 5, 21 27. V5" THICK CONCRETE SIDEWALK VERT CONC. CURB & GUTTER SEE DETAIL, SHEET CJ 37 - SEE SURFACING SECTION B-B SECTION OPTION SHT C3 31. ONE-HALFSTREET NEIGHBORHOOD COLLECTOR SE. 136th STREET (BETWEEN 158th A VE SE. & 160th A VE. SE.) 10' UTILITY EASEMENT 2,1 10' UTILITY EASEMENT 2;1 NO SCALE 27' (20'*) 21 42' R/W (41'*) ' 5'* 14' RAW 14' 5' TYP EASEMENT ROAD (14**) R/W (14**) 1 1' �-- 1 ' **ROAD 1 '-- 1, 2q' 4.5'** 2�7. 5" THICK CONC. SIDEWALK* SEE SURFACING SECTION OPTIONS--` SHT C3 31 SECTION C-C VRBANSUB-COLLECTOR CEMENT CONC. ROLLED CURB & GUTTER SEE DETAIL SHT. C3.31 * R/W REDUCES TO 41' ALONG 158TH A VE. SE. BETWEEN STA. 1 f70.50 & STA. ,3f35.82. NO SIDEWALK IS REOD ALONG THE WEST SIDE WHERE ROW iS 41 ' 158THA VE1, SE. & PORTION OFSE 137TH ST. ** CROWN OF ROAD IS OFFSET FROM R/W � ALONG NO SCALE SE. 137th ST BETWEEN STA. 0f 00 TO STA. 0+77. 61. 32' R/W 5' TYP 12' 1 12' �RIGHT OF WAY ROAD 1 a. 5, ` 1 ' 2.5' 271, i L- 5" THICK CONC. SIDEWALK SEE SURFACING SECTIONAD SECTION OP7701VS URBAN SUB ACCESS STREET SHT. CJ 31 PORTION OFSE 137TH ST, 159TH K. SE., SE..138TH ST.,158TH NO SCALE �nfrrniiry EASEMENT 2'•1 <. CEMENT CONCC, ROLLED CURB & GUTTER SEE DETAIL SHT C3.31 PL. SE 13' 27. SEE SURFACING -- SEC77OV OPTIONS SHT C3 31 26' TRACT I W/DT,H 13' 11' 2X CEMENT CONCRETE ROLLED CURB & GUTTER SEE DETAIL SHEET C3.31 SECTION EE-E PRIV/ATEACCESS TRACT TRACT B, D, & E NO SCALE 20' TRACT 18' PA VEMEN T WID TH 9' 9' I TRACT .1� 1 1 1 MPX 1 2 SEE SURFACING SECTION PROPOSED CATCH7 OPTIONS, SHEET C3.31 BASIN. SEE PLAN: THICKENED EDGE SECTION F-F SEE DETAIL SHT C3.31 JOINT USEDRIV/EWAY TRACTS A, ) F, & / NO SCALE 5' WiDE CONC. (5" THICK) 23' TRACT SIDEWALK AND EASEMENT 18' PA 1EMENT WIDTH 2;1 � SEE SURFACING SEC77ON OP770NS, SHEET 031 SECTION G-G JOINT USE DRIVEWAY THICKENED EDGE TRA CT H SEE DETAIL SHT. C3.31 NO SCALE GENERAL NOTES 1. ALL CONSTRUCTION SHALL BE IN ACCORDANCE WTH THE KINC COUNTY CODE (KCC), KiNG COUNTY ROAD STANDARDS (KCRS), AND THE KING COUNTY COUNCIL :S CONDITIONS OF PRELIMINARY SUBDIVISION APPROVAL. IT SHALL BE THE SOLE RESPONSIBILITY OF THE APPLICANT AND THE PROFESSIONAL C(WL ENGINEER TO CORRECT ANY ERROR OMISSION, OR VARIATION FROM THE ABOVE REOGi1REMENTS FOUND IN THESE PLANS ALL CORREC7701V5 SHALL BE AT NO ADDITIONAL COST OR LIABILITY TO KiNG COUNTY. 2 THE DESIGN ELEMENTS WITHIN THESE PLANS HAVE BEEN REVIEWED ACCORDING TO THE KING COUNTY DEPARTMENT OF DEVELOPMENT AND ENWRONMENTAL SERVICES (DDES) ENGINEERING REVIEW CHECKLIST SOME ELEMENTS MAY HAVE BEEN OVERLOOKED OR MISSED BY THE DDES PLAN REVIEWER. ANY VARIANCE FROM ADOPTED STANDARDS /S NOT ALLOWED UNLESS SPECIFICALLY APPROVED BY KING COUNTY PRIOR TO CONSTRUCTION 3. APPROVAL OF THIS ROAD, GRADING AND DRAINAGE PLAN DOES NOT CONSTITUTE AN APPROVAL OF ANY OTHER CONSTRUC7701V (E.G DOMESTIC WATER CONVEYANCE SEWER CONVEYANCE, GAS ELECTRICAL, ETC) 4. BEFORE ANY CONSTRUCTION OR DEVELOPMENT ACTIVITY, A PRECOVSTRUC7701V MEETING A+UST BE HELD BETWEEN THE DDES LAND USE INSPECTION SECTION, THE APPLICANT, AND THE APPLICANT'S CONSTRUCTION REPRESENTA 77VE 5 A COPY OF THESE APPROVED PLANS MUST BE ON THE JOB SITE WHENEVER CONST UC770N lS IN PROGRESS. 6. CONSTRUC7ON NOISE SHALL BE LIMITED AS PER KING COUNTY CODE (SECTON 12.88), NORMALL Y, THIS IS 7 A. M. TO 10 P. M. WEEKDA YS AND 9 A. M. TO 10 P.M. ON WEEKENDS. 7 /T SHALL BE 77 E APPLICANT'S/CONTRACTORS RESPONSIBILITY TO OBTAIN ALL CONSTRUCTION EASEMENTS NECESSARY BEFORE INI17A 17NG OFF -SITE WORK Nn1HIN THE ROAD RIGHT -OF -WA Y. 8. FRANCHISED U17LIPf-5 OR OTHER INSTALLATIONS THAT ARE NOT SHOWN ON THESE APPROVED PLANS SHALL NOT BE CONSTRUCTED UNLESS AN APPROVED SET OF PLANS THAT MEET ALL REQUIREMENTS OF KCRS CHAPTER 8 ARE SUBMITTED TO THE DOES LAND USE INSPECTION SECTION THREE DA YS PRIOR TO CONSTRUCTION. 9 DATUM SHALL BE NA VD 1988 UNLESS 0THERWISE APPROVED BY DDES 10. GROUNDWATER SYSTEM CONS TRUCTON SHALL BE W1THIN A RIGHT-OF-WAY OR APPROPR/ATE DRAINAGE EASEMENT, BUT NOT UNDERNEATH THE ROADWAY SECTION: ALL GROUNDWATER SYSTEMS MUST SE CONSTRUCTED IN ACCORDANCE WITH SEC770N 81 J02 OF THE APWA STANDARD SPECIFICATIONS 11. ALL U77tITY 7RENCHES SHALL BE BACKFILLED AND COMPAC7E0 TO 95 PERCENT DENSITY 12. ALL ROADWA Y SUBGRADE SHALL BE BACKFILLED AND COMPACTED TO 95 PERCENT DENSITY (WSDOT 2-06.3). IJ OPEN CUT77NG OF EX/S77NG ROADWA YS IS NOT ALLOWED UNLESS SPECIFICALL Y APPROVED BY DDES AND NOTED ON THESE APPROVED PLANS. ANY OPEN CUT SHALL BE RESTORED IN ACCORDANCE WITH KCRS 8.03(B)3. 14. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROVIDING ADEQUATE SAFEGUARDS, SAFETY DEVICES, PRO TECT7VE EQUIPMENT, FLAGGERS, AND ANY OTHER NEEDED ACTIONS TO PROTECT THE LIFE, HEAL TH, AND SAFETY OF THE PUBLIC, AND TO PROTECT PROPERTY IN CONNEC77ON Of7H THE PERFORMANCE OF WORK COVERED BY THE CONTRACTOR ANY WORK WlTHIN THE TRAVELED RIGHT -OF WAY THAT MA Y INTERRUPT NORMAL TRAFFIC FLOW SHALL REQUIRE AT LEAST ONE FLAGGER FOR EACH LANE OR TRAFFIC AFFECTED SECTION 1-0723 "TRAFFIC CONTROL " OF THE WSDOT STANDARD SPECIFICA7ONS SHALL APPL Y IN ITS EN77RETY. CONTINUATION OF HEARING EXAM/NER'S CONDITIONS (FROM C1.01) 18. Street trees shall be included in the design of all road Improvements, and shall comply with Section 5.03 of the KCRS and KCC 21A.16.050.- a Trees shall be p/anted at a rate of one tree for every 40 feet of frontage along all roods Spacing may be modified to accommodate sight distance requirements for driveways and intersections f 9 of the , 993 Kin Count b. Trees shall be located within the street right of way and p/anted in accordance with Growing No. 5 00 g y Rood Standords, unless King County Deportment of Transportation determines that trees should not be /ocoted in the street right-of-way. c. If King County determines that the required street trees should not be located with/n the right-of-way, they shall be located no more thon 20 feet from the street right-of-way line. d. The trees shall be owned and maintained by the abutting lot owners r the homeowners association or other workable organization unless the County has adopted a maintenance program. Ownership and maintenance shall be noted on the face of the f/nol recorded plot. e. The species of trees shall be approved by DDES if located within the right -of way and sho// not include pop/a, cottonwood, soft maples, gum, any fruit -bearing trees, or any other tree or shrub whose roots are likely to obstruct sanitary or storm sewers, or that is not compatible with overhead utility lines. f. The Applicant shall submit a street tree plan and bond quantity sheet for review and approval by DDES prior to engineering plan approval. g. The street trees must be installed and inspected, or a performance bond posted prior to recording of the plat. If a performance bond /s posted, the street trees must be installed and inspected within one year of recording of the plot. At the time of inspection, if the trees are found to be installed per the approved p/an, a maintenance bond must be submitted or the performance bond replaced with a maintenance bond, and held for one year. After one year, the maintenance bond may be released after DDES has completed a second inspection and determined that the trees have been kept healthy and thriving. A landscape inspection fee sholl also be submitted prior to plat recording. The inspection fee is subject to change based on curren t Coun ty fees S!FA 19. The following have been established by SEPA as necessary requirements to mitigate the adverse environmental impacts of this development The Appliconts sholl demonstrate compliance with these items prior to final approval. O. EOSt D/i h= The 160th Ave SE downstream conveyance system shall be upgraded to provide for the 1O0 year storm capacity. Downstream driveway culverts/ditches and a cross -culvert under 160th Avenue SE shall be improved as follows: Culverts P-117 and P-116 on the west side of 160th Avenue SE, cross -culvert P-115, and culverts P-114 and P-113 on the east side of 160th Avenue SE shall be Improved as needed. The culvert designations are accord/ng to the Level 3 Downstream Drainage Ano/ysls by Haozous Engineering dated August 26, 2002. To address o related localized flooding condition, bank and channel stabilization are also required in the unopened right-of-way for 162nd Avenue SE, in the vicinity of the easterly line of Lot 12, Rich Lea Crest (address 16046 SE 142nd Street) It is estimated that stabilizing and re -grading approx/mate/y 50 to 100 feet of channel, east of 16046 SE 142nd Street, will be adequate to resolve flooding that has occurred in the post location. The culverts and channel described are located from the south site boundary to a distance of approximately 1,700 feet downstream. Level 2 Flow Control design is required for the proposed stormwoter detention facility. A factor of safety of 5 to 15 percent, determined by the design engineer, shall be required for detention storage volumes A West Drainage Bosom° The stormwoter detention facilities shall be designed to the Level 3 Flow Control Standard as descr/bed in the 1998 King County Surface Water Design Manual (KC5M5M) As on option, Level 2 Flow Control with downstream improvements can be proposed according to Core Requirement 2 of the KCSWDM. The minimum Flow Control Standard shall be Level 2. A factor of safety of 5 to 15 percent, determined by the design engineer, shall be required for detention storage volumes. The downstream impacts of the 1,700 feet of conveyance improvements shall be reviewed by the developer's engineer, and any recommendations necessary to prevent flooding or other damage from occurring as a consequence of the requ/red conveyance improvements shall be included with the plans for review by DDES. School M iyotiant Fees 2n Lots within this subdivision east of 1581h Avenue SE are subject to King County Code 21A.43, which imposes impact fees to fund school system improvements needed to serve new development. As a condition of final approv% fifty percent (50X) of the impact fees due for the plot sho// be assessed and collected immediately prior to recording, using the fee schedu/es in effect when the plot receives flno/ approval. The balance of the assessed fee shall be allocated evenly to the dwelling units in the plat and sholl be collected prior to building permit issuonce. School NAK 21. A pedestrian access easement between 1581h Place SE and 160th Avenue SE shall be provided over either Tract H or L (as shown in Exhibit 62). The easement shall have a minlmum 10 foot width and be improved with a 5 foot w/de paved surface. 22. The Applicant, individually or in conjunction with other developers, shall construct on off -site walkway to Liberty High school from the site. The wa/kway shall be constructed with/n the right-of-way from 160th Ave SE, east along SE 135th Street to 166th Ave SE, and south to Liberty High School at SE 1361h Street, or via alternative right-of-way and easements that become available and are approved by DDES One acceptable alternative would be to use future right-of-way of Southeast 13607 Street and 162nd Avenue Southeast to connect with the sidewalk improvement of "five lot subdivision," and through the plot of "five lot subdivision X 00POO23 to the southwest gate of Liberty High School. The walkway shall be designed and constructed in accordance with the 1993 King County Rood Standards and shown on the engineering plans for DOES review and approval. Any surfacing alternative from the King County Rood Standards (KCRS 3.09) may be submitted for approval through a road var/once appl✓cotion. R/W � 10' UTILITY _ � _ 30' R/W -1 EASEMENT 10"- PROPOSED GRASS -LINED V-DITCH- - ,. DEPTH = 1. 5' SiDE SLOPES 3.° 1 SOLID EXTRUDED ASPHAL T -/ OR CONCRETE CURB WHERE SHOWN ON PLAN SEE DETAIL SHT 031 SEE SURFACING SEC7701V OPTIONS, SHEET C3.31 19, EX. PA VEMEN T 27' 4" WIDE WHITE PAINT STRIPE AT EDGE OF SHOULDER PER K. C.R. S. SEC 4.05 EXTRUDED ASPHALT OR CONCRETE CURB W/ 1. 5' OPENINGS FOR DRAINAGE AT 25' 'TCH TO CC WHERE SHOWN ON PLAN D SEE DETAIL SHT. 031 SECTION H-H 16'OTHA VE, S.E. NO SCALE SI�'s s s s o �n :_Zt > oio,o 0 0 0 z0.Z'lliZ W o z Z ra sn z I i� 1 M 44 a Z a 0 o in M w t ED in a cv o x K ra ° co >coZ 1.•'. ��! i � Z Q CL f 0ULJ Z w Z C� z LU _+ 1 o W �aJ o Q N ") oc�JCIO ;� �,- v 0 V) Q k�Z z Z J� t� Q Q w o LZ o Q W m o (� V ICING COUNTY DAE.S. REVIEW ENGINEi a' COMPLE1101V DATE SENIOR EN,911VCE& COMPLE110N DATE JAME-5 H. SANDER, P E. APPROVAL' DATE DEVELOPMENT ENGINEER COMMENT.£• W � OIL LiZ' v Oz Q Q W o w w > Q w Z z li O Q w Q rl� I SHEET OF C1.02 18 PROJECT NUMBER 04009 C�J tt tt z t:� 1� o O C" y II! W � v