1. In-water structures should be planned and designed to be compatible with appropriate multiple uses of resources over the long term. Appropriate multiple uses include, but are not limited to, public access, recreation, and fish migration.

2. The location, design, construction and maintenance of in-water structures should give due consideration to the full range of public interests; watershed processes, including prevention of damage to other properties and other shoreline resources from alterations to geologic and hydrologic processes; and ecological functions, with special emphasis on protecting and restoring priority habitats and species.

3. In-water structures shall be sited and designed consistent with appropriate engineering principles, including, but not limited to, guidelines of the Washington Department of Fish and Wildlife, and the U.S. Army Corps of Engineers.

4. Nonstructural and nonregulatory methods to protect, enhance, and restore shoreline ecological functions and processes and other shoreline resources should be encouraged as an alternative to in-water structures. Nonregulatory and nonstructural methods may include public facility and resource planning, land or easement acquisition, education, voluntary protection and enhancement projects, or incentive programs.

5. Planning and design of in-water structures should be consistent with and incorporate elements from applicable watershed management and restoration plans and/or surface water management plans.

6. New or expanding development or uses in the shoreline, including subdivision of land, that would likely require structural flood control works within a stream, channel migration zone, or floodway should not be allowed.

7. In-water structure proposals should incorporate native vegetation to enhance ecological functions, create a more natural appearance, improve ecological processes, and provide more flexibility for long-term shoreline management. Such features include vegetated berms; vegetative stabilization including brush matting and buffer strips; and retention of existing trees and shrubs on stream banks, if possible.

1. Channelization projects that damage fish and wildlife resources, degrade recreation and aesthetic resources, result in a net loss of ecological functions or result in high flood stages and velocities are prohibited.

2. Upland cut-and-fill slopes and back-filled areas resulting from installation of in-water structures shall be stabilized with brush matting and buffer strips and revegetated with native grasses, shrubs, or trees to prevent loss of shoreline ecological functions and processes.

3. In-water structures shall be designed by a qualified professional and be constructed and maintained in a manner that does not degrade the quality of affected waters or create a safety hazard. The town shall require reasonable conditions to achieve this objective.

4. No motor vehicles, appliances, other similar structures or parts thereof; or structure demolition debris; or any other solid waste shall be used as in-water structures.

5. In-water structures shall allow for natural ground water movement and surface runoff.

6. In-water structures shall preserve valuable recreation resources and aesthetic values such as point and channel bars, islands, and braided channels.

7. Design of in-water structures shall include access to public shorelines whenever possible, unless it is demonstrated that public access would cause unavoidable public health and safety hazards, security problems, unmitigatable ecological impacts, unavoidable conflicts with proposed uses, or unreasonable cost. At a minimum, in-water structures should not decrease public access or use potential of shorelines. [Ord. 580 Att. A § 5.6, 2019.]