“Delineation”means an analysis that determines the boundary of natural resource according to an approved methodology.
“Excavation”means removal of organic or inorganic material (e.g., soil, sand, sediment, muck) by human action.
“Fill”means deposition of organic or inorganic material (e.g., soil, sand, sediment, muck, debris) by human action.
“Fish bearing”means inhabited at any time of the year by anadromous or game fish species and fish that are listed as threatened or endangered species under the Federal Endangered Species Act or included on the OSFW Threatened and Endangered Species List. Fish-bearing status is determined through a combination of Oregon Department of Fish and Wildlife data and Oregon Department of Forestry Stream Classification maps.
“Lawn”means grass maintained as a ground cover of less than six inches in height, and managed to restrict the growth of shrubs and trees. For purposes of this chapter, lawn is not considered native vegetation regardless of the species used.
“Mitigation”means compensating for impacts to a riparian corridor including: restoration, creation, or enhancement of riparian functions. Some examples of riparian impact mitigation actions are replanting trees, removal of nuisance plants, and restoring streamside vegetation where it is disturbed or where it has been degraded due to past practices.
“Native vegetation”means plants identified as naturally occurring and historically found within the eco-region.
“Net loss”means a permanent loss of riparian functions provided by riparian structure and vegetation that results from a development action despite mitigation measures having been taken.
“Nonconforming”means a structure or use that does not conform to the standards of this chapter but has been in continuous existence from prior to the date of adoption of the ordinance codified in this chapter up to the present. Nonconforming uses are not considered violations and are allowed to continue, although expansion, reconstruction, or substantial improvements are regulated.
“Off-site mitigation”means mitigation undertaken on a lot or parcel adjacent to or distant from the lot or parcel affected by a development action.
“On-site mitigation”means mitigation undertaken within the lot or parcel affected by a development action.
“Ordinary high water line (OHWL)”means the line on the bank or shore to which the high water ordinarily rises. The OHWL excludes exceptionally high water levels caused by large flood events (e.g., 100-year events).
“Qualified professional”means an individual who has proven expertise and vocational experience in the delineation of water resources.
“Riparian area”means the area adjacent to a river, lake, or stream, consisting of the area of transition from an aquatic ecosystem to a terrestrial ecosystem.
“Riparian corridor”means a resource that includes the water areas, fish habitat, and riparian areas that serve to protect water quality and the habitat functions of the water body. Corridors are further defined in BMC §
17.74.040(C).
“Shrubs”means woody vegetation greater than three feet but less than 20 feet tall, including multistemmed, bushy shrubs and small trees and saplings.
“State and Federal Natural Resource Agency”means the Oregon Department of State Lands, Oregon Department of Fish and Wildlife, U.S. Army Corps of Engineers, U.S. Department of Agriculture Natural Resources Conservation Service, U.S. Fish and Wildlife Service, U.S. Environmental Protection Agency, and Oregon Department of Environmental Quality.
“Stream”means a channel such as a river or creek that carries flowing surface water, including perennial streams and intermittent streams with defined channels, and excluding manmade irrigation and drainage channels.
“Structure”means a building or other structure that is built, constructed or installed, not including minor improvements, such as fences, utility poles, flagpoles, or irrigation system components, that are not customarily regulated through zoning ordinances.
“Substantial improvement”means any repair, reconstruction, or improvement of a structure, the cost of which equals or exceeds 50 percent of the market value of the structure either:
1. Before the improvement or repair is started, or if the structure has been damaged and is being restored, before the damage occurred.
2. For the purposes of this definition “substantial improvement” is considered to occur when the first alteration of any wall, ceiling, floor, or other structural part of the building commences, whether or not that alteration affects the external dimensions of the structure.
The term does not, however, include either: |
1. | Any project for improvement of a structure to comply with existing state or local health, sanitary, or safety code specifications which are solely necessary to assure safe living conditions, or |
2. | Any alteration of a structure listed on the National Register of Historic Places or a State Inventory of Historic Places. |
“Top of bank”means a distinct break in slope between the stream bottom and the surrounding terrain which corresponds with the ordinary high water line of the stream; or the two-year recurrence interval flood elevation.
“Trees”means a woody plant five inches or greater in diameter at breast height and 20 feet or taller.
“Water dependent”means a use or activity which can be carried out only on, in, or adjacent to water areas because the use requires access to the water body for water-borne transportation, recreation, energy production, or source of water.
“Water related”means uses which are not directly dependent upon access to a water body, but which provide goods or services that are directly associated with water-dependent land or waterway use, and which, if not located adjacent to water, would result in a public loss of quality in the goods or services offered. Except as necessary for water-dependent or water-related uses or facilities, residences, parking lots, spoil and dump sites, roads and highways, restaurants, businesses, factories, and trailer parks are not generally considered dependent on or related to water location needs.
(Ord. 19-O-776 § 1 (Exh. C))