Ord-2021-016 - Laserfiche WebLink

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3. Location of Alterations. New development shall be directed toward portions of a parcel or parcels under contiquous ownership that are not subject to. or at risk from. geological hazards and/or are outside anv setback or buffer established by this Chapter.4. Gritical Facilities Prohibited. Criticalfacilities shall not be sited within landslide. erosion. alluvial fan. or mine hazard areas unless there is no other practical alternative.5. Review bv Qualified Professional. A oualified qeoloqist or enqineerino qeoloqist. or professional enqineer licensed in the state of Washinqton. shall review development proiects that occur in potentiallv qeoloqicallv hazardeus areas to determine the risk. lf development takes place within an identified geoloqicallv hazardous area requirinq design or structural elements to mitiqate the hazard. a report describinq the qeologicallv hazardous area and conditions shall be prepared as described in KCC 17A.06.100. and the desiqn shall be approved bv an qualified enqineerinq qeoloqist. or professional enqineer licensed in State of Washinqton with expertise in oeoloqicallv hazard mitioation.6. Life of Structure. Prooosed developments shall be sited far enouoh from erosion and landslide hazard areas to ensure at least one hundred (100) vears of useful life for the proposed structure(s) or infrastructure. The location should be determined by a qualified qeologist or engineering geolooist. licensed in the state of Washington and be should be based on site specific evaluation of the landslide and/or erosion hazard. 174,06.040 Landslide Hazard Area Standards 1. Generallv. Alterations and development mav be allowed adiacent to landslide hazard areas. provided that all responsible measures have been taken to minimize risks and other adverse effects. and the amount and deqree of the alteration are limited to minimum needed to accomplish the proiect purgose. Prior to approvinq a new alteration or development in or adjacent to a landslide hazard area the Director shall determine that all the followinq standards are met: a. A minimum setback equal to the heiqht of the slope or 40 feet. whichever is qreater or as recommended in an approved oeotechnical report: b. The alteration or development includes all appropriate measures to eliminate. reduce. or othenrvise mitioate risks to health and safetv:c. The alteration or development is located outside of a landslide hazard area and anv required setback. as determined by a qualified enoineer. engineerinq geologist, or qeologist. licensed in the state of Washinqton: d. The alteration or development will not decrease slope stabilitv on adiacent properties: e. The alteration or development shall not increase the risk or frequencv of landslide occurrences:f. The removal and disturbance of veoetation. clearino. or qradino shall be limited to the area of the approved alteration or development:q. The alteration or development will not increase surface water discharqe or sedimentation to adjacent properties beyond predevelopment conditions: h. The proposed alterations will not adverselv impact other critical areas: andi. Structures and improvements includinq drainaqe and veqetation manaqement are desiqned to have no impact on the slope stabilitv: andi. lf development takes place within an identified qeoloqicallv hazardous area. the development must be desiqned to fully mitiqate the risk to the structure(s) and not increase the risk to the public. other properties or public infrastructure or resources.2. Permitted Alterations and Development. The followinq alterations and development mav be allowed in landslide hazard areas when all reasonable measures have been taken to minimize risks and other adverse effects associated with landslide hazards. and when the amount and deqree of alteration is limited to the minimum needed to accomplish the alteration or development: 52