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Home My WebLink AboutSEP99-0173 Bulkhead Repair, photos in SHR scans - SEP Determinations - 12/14/1999 SEP99-0173 MASON COUNTY DEPARTMENT OF COMMUNITY DEVELOPMENT Planning-Landfill-Utilities MITIGATED DETERMINATION OF NONSIGNIFICANCE (WAC 197-11-350) Description of Proposal : BULKHEAD REPAIR Proponent : FRED HAYNES Location of Proposal : 72 N BOW TREE IN LILLIWAUP PARCEL#:224065200006 WILDER-HIMES SUBDIVISION TR 6 N 72 BOW TREE LN FROM MILE POST 315 TURN RIGHT ON WEBSTER LANE TO FORK IN ROAD TAKE MIDDLE ROAD BOW TREE LANE, AT GRAY BARN SHED TURN RIGHT TOWARD CANAL AND LAGOON Lead Agency: MASON COUNTY The Lead Agency for this proposal has determined that it does not have a probable significant adverse impact on the environment. An Environmental Impact Statement (EIS) is not required under RCW 43 .21C. 030 (2) (c) . This decision was made after review of a completed Environmental Checklist and other information on file with the Lead Agency. This information is available to the public upon request. MITIGATION MEASURES ARE ATTACHED. Please contact PftmVjA- V��0 5-Fl - (nt)"1jb,I at ext. p with any questions . This DNS is issued under 197-11-350 (2) , the Lead Agency will not act on this proposal for 14 days from the date below. Comments must be submitted by 12/27/99 . DATE: 1 13/99 Signature re onsible official Date Responsible Official : Gary Yando Director of Community Development 426 W. Cedar, PO BOX 578 Shelton, WA 98584 (360) 427-9670 MIT DNS, rev: 08/23/96 A� ��" -t om sLfA S"e�"Es � A-nuck-vT J Conditions of this Case are listed below: Case No.:SEP99-0173 1) All upland areas disturbed or newly created by construction activities shall be seeded, vegetated or given some other equivalent type of protection against erosion. 21 The proposed project must be consistent with all applicable policies and other provisions of the Shoreline Management Act, its rules, and the Mason County Shoreline Master Program. X 3) Proper disposal of construction debris must be on uplands, in such a manner that debris cannot enter wetlands or cause water quality degradation of adjacent waters. 4) All construction and demolition debris must be removed from the beach after project completion. Proper disposal of construction debris must be on land in such a manner that debris cannot enter or cause water quality degradation of State waters. X 5) Excavated materials cannot be used as landfill within 200 feet of the shoreline without prior approval from the shoreline division of the Mason County Planning Department. 6) The applicant acknowledges that this development was sited such that further shore protection measures will not be required for protection of the facility. 7) Temporary erosion control measures must be implemented to prevent water quality degradation of adjacent waters or wetlands. X 8) All other necessary permits from Mason County, Washington State and/or Federal Agencies that are required for this proposed development and construction must be obtained PRIOR TO SAME DEVELOPMENT AND CONSTRUCTION. X 9) Approved per dimensions and setbacks on submitted site-plan. X Printed t' rorn Mas Cou' rit Schematic Only-Not to Scale I F/ti/s#GfL►Of_ Mkx WiNf �' �� :✓- �� .l— ` o,p'�•op I v • B=rz r2 C> = /V"A4/A/ W I fasTING Rock Wall vation 77A&O'Z Rock Wall Section T'ne`cng dimens. of the rocks should extend back towards the MI RA-F1 X cut or fill face provide maximum stability.Rocks should not be 6'Wre 4a M` stacked Irk hoe boxes.They should be placed to avoid NOTES: continuo ;hint planes in vertical or lateral directions.Whenever posse each rock should bear on two or more rocks below it,with • Rockwell constructions a craft and depends largely on the skill goo flat-to-flat contact. and experience of the builder. •Al ock walls over 4 feet inheight should be constructed on basis • A rock wall is a protective system which helps retard the f wall mass,not square footage of face, weathering and erosion process on an exposed soil face. While by its nature(mass,size and shape of the rocks)it will Approximate Approximate provide sane degree of retention,4 is not a designed or Size Weicht-lbs. Diameter eneineered system in the sense a reinforced concrete retaining wail would be ccnsidered designed or angneered. \Reference: 50 - 200 12 - 18' • i ne degree of retention achieved is dependent on the size of the 200 - 700 18 - 28' rock used;that is,the mass or weight,and the height of the we 700 - 2000 28 - 36' being constructed.The larger the rock,the more competent 2CC0 - 4000 36 - 48' rack wall should be. 4000 - 6000 48 - 54' • Rcck'Naffs should be considered maintenance items ill 6C00 - 8C00 54 - 60' require periodic inspecicn and repair.They should be ted so that they can be reached by a contractor d repairs b ome quarry weight study using average weights of nonecessary. of each man size conducted n January 1,1988. • Maximum inclination of the slopes above and b ind rock walls should be 2:1 (Hcrizontal:Verticap. Drainage materials to consist of dean angular 4 to • Minimum thickness of rock fitter layer B= inches,Minimum .8 2 irtGh;palls,or outer materiaf,approved by the embedment D=12 inches undisturb ative sod or compacted ffil o`a geotecr>n;cal engineer placed in accordance with report r mmendations. • Maximum rock wad height H= feet. Surface seal:may consist of impervious sod or a • Rock wails greater than 8 fee ' height to be installed under fine free draining granular material. periodic or full time obsery on of the geotechnical engineer. • Rock should be plat gradually decrease in size with Undisturbed firm Native soil increasing wall hei in accordance with gectechnicai engineers recpmmendatic Dr ip 4�n m' ' u r,p Drat or •Unimum wi of keyway excavation,W,should be equal to the tn� i ethickness the basal rock(as determined by geatechnicalengineer's design)plus 3. g rein ' ge dwe way we . QDesignates size of rock required,i.e. 4 man. I'NTYPICAL DETAIL;NATIV C T ANY HEIGHT CJRJFEAv 41 i ." ' MASON COUNTY CHIC) t - lum 6` ENVIRONMENTAL CH ET Purpose of Checklist: 16 06 9966th A E� Puy8llup,WA 99371-6176 The State Environmental Policy Act (SEPA), chapter 43.21 C RCW, requires all governmental agencies to consider the environmental impacts of a proposal before making decisions. An environmental impact statement (EIS) must be prepared for all proposals with probable significant adverse impacts on the quality of the environment. The purpose of this checklist is to provide information to help you and the agency identify impacts from your proposal (and to reduce or avoid impacts from the proposal, if it can be done) and to help the agency decide whether an EIS is required. Instructions for Applicants: This environmental checklist asks you to describe some basic information about your proposal. Governmental agencies use this checklist to determine whether the environmental impacts of your proposal are significant, requiring preparation of an EIS. Answer the questions briefly, with the most precise information known, or give the best description you can. You must answer each question accurately and carefully, to the best of your knowledge. In most cases, you should be able to answer the questions from your own observations or project plans without the need to hire experts. If you really do not know the answer, or if a question does not apply to your proposal, write "do not know" or "does not apply". Complete answers to the questions now may avoid unnecessary delays later. Some questions ask about governmental regulations, such as zoning, shoreline, and landmark designations. Answer these questions if you can. If you have problems, the governmental agencies can assist you. The checklist questions apply to all parts of your proposal, even if you plan to do them over a period of time or on different parcels of land. Attach any additional information that will help describe your proposal or its environmental effects. The agency to which you submit this checklist may ask you to explain your answers or provide additional information reasonably related to determining if there may be significant adverse impact. Use of Checklist for Non-project Proposals: Complete this checklist for non-project proposals, even though questions may be answered "does not apply". IN ADDITION, complete the SUPPLEMENTAL ACTIONS (part D). There is ra200.00 ee required for the processing of the checklist. Please make your check payab e ason County Treasurer." For non-project actions, the references in the checklist to the works "project", "applicant", and "property or site" should be read as "proposal", "proposer", and it geographic area", respectively s ((''��aon � 1 u n