Title 17E Environmental Standards
Chapter 17E.060 Shoreline Regulations
Article III. General Provisions: Part III. Vegetation Conservation and Replacement
Shoreline vegetation replacement shall follow a vegetation replacement plan prepared by a qualified professional and contain the following components:
Inventory of existing vegetation on the proposed project site as documented in the shoreline/critical areas checklist and pursuant SMC 17E.060.250.
Overview of how mitigation sequencing was conducted and the justification for proposed mitigation activities.
Detailed planting plan showing the location, type and size of all proposed replacement vegetation, pursuant to SMC 17E.060.270(E)(2).
Methodology for removal of any noxious or nonnative vegetation, as necessary, to facilitate establishment of a stable community of native plants; and
The following standards shall apply for the replacement of removed native vegetation within the shoreline jurisdiction:
At least twenty-five percent of existing healthy trees over six-inch caliper as identified in the vegetation replacement plan shall be retained when a site is developed.
Removed shoreline vegetation shall be replaced at the following ratios:
SHORELINE VEGETATION REPLACEMENT RATIO*
Native Deciduous Trees Less Than 6" Caliper
1:1 replacement ratio;Replacement tree(s) must be a minimum 2.5" caliper
Native Deciduous Trees Over 6" Caliper
2:1 replacement ratio;Replacement tree(s) must be a minimum 2.5" caliper
Native Evergreen Trees Less Than 6" Caliper
1:1 replacement ratio;Replacement trees(s) must be a minimum 4" caliper
Native Evergreen Trees Over 6" Caliper
2:1 replacement ratio;Replacement trees must be a minimum 4" caliper
1:1 replacement ratio;Replacement shrub(s) must be at a minimum 12" - 18" in diameter (at head)
1:1 replacement ratio:Replacement groundcover(s) must be at a minimum 4" in diameter (at pot)
* For example, when a ten-inch caliper native deciduous tree is removed, the applicant may propose to replace with two five-inch caliper native deciduous trees or four two and one-half inch caliper native deciduous trees. A qualified professional will determine the appropriate vegetation replacement size(s) for the project site.
Date Passed: Monday, November 3, 2008
Effective Date: Monday, July 26, 2010
ORD C34326 Section 2