Environment & Sustainability | Clearing and Grading
in critical areas as set out in SDC 21.03.020. This does not include clearing or grading in order to develop or expand such activities; c. Normal and routine maintenance of existing public park properties and private and public golf courses; d. Pruning and limbing of vegetation for maintenance of above-ground electrical and telecommunication facilities; 8. The cutting and removal of coniferous trees of less than eight inches DBH or deciduous trees of less than 12 inches DBH on sites with an approved land use unless required to be protected by a previous permit approval; 9. The pruning, limbing, and general maintenance of trees outside of environmentally critical areas and buffers, consistent with the requirements of SDC 21.03.060; 10. An excavation that is less than two feet in depth or does not create a cut slope greater than four feet in height and steeper than one unit vertical in two units horizontal (66.7 percent slope), that does not exceed 50 cubic yards on any one lot and does not obstruct a drainage course; 11. A fill less than one foot in depth and placed on natural terrain with a slope flatter than one unit vertical in five units horizontal (20 percent slope), or less than three feet in depth, not intended to support structures, that does not exceed 50 cubic yards on any one lot and does not obstruct a drainage course; 12. Normal routine maintenance of existing single-family drainage systems, including but not limited to excavation to
replace existing pipes, catch basins and infiltration trenches, that does not exceed 50 cubic yards on any one lot and does not obstruct a drainage course; and 13. Installation of sanitary septic systems with King County health district approval and inspection. 14. The following exemptions apply in critical areas and buffers that are already developed and publicly owned such as existing streets, pedestrian paths, and trails. All non-exempt activities including any new development requires a clearing and grading permit. a. Roadside ditch cleaning on publicly owned roads, provided the ditch does not contain salmonids; b. Pavement maintenance within a publicly owned right- of-way; c. Normal grading of gravel shoulders within a developed and publicly owned right-of-way;
d. Maintenance of publicly owned culverts;
e. Maintenance of flood control or other approved surface water management facilities;
f. Routine clearing within a public road right-of-way;
g. Normal maintenance in a publicly owned park
F. Applications—Complete applications
1. For the purposes of determining the application of time periods and procedures adopted by this chapter, applications for permits authorized by this chapter shall be considered complete as of the date of submittal upon
180 | Title 21: Sammamish Development Code
Effective | January 1, 2022
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