The following development standards shall apply to fish and wildlife habitat conservation areas:
A. Riparian Management Zones Building Setbacks. RMZs and building setbacks shall be maintained along all identified fish and wildlife habitat conservation areas, as indicated in this section.
1. Riparian management zones and building setbacks shall be maintained along all identified fish and wildlife habitat conservation areas. Distances shall be measured horizontally from the ordinary high water mark (OHWM) or from the top of the bank where the OHWM cannot be identified. Building setbacks shall be measured horizontally from the edge of the riparian management zone (RMZ).
a. For streams in ravines with ravine sides ten feet or greater in height, the minimum RMZ width shall be the minimum required or a width which extends twenty-five feet beyond the top of the slope, whichever is greater.
2. Riparian management zones shall be retained in at least the quality of their existing condition. Where impacts or reductions of the standard RMZ width are proposed, the director may require the remaining RMZ be enhanced to protect the quality and function of the fish and wildlife habitat conservation area through a RMZ enhancement plan. Refuse, including but not limited to household trash, yard waste, and commercial/industrial refuse, shall not be placed in the RMZ.
3. Riparian management zones shall include streamside wetlands and/or functional floodplains which provide overflow storage for stormwaters, provide groundwater recharge or discharge functions, or provide seasonal shelter and food for fish. In braided channels, the OHWM or top of bank shall be defined so as to include the entire stream feature.
4. Riparian management zones shall also include the channel migration zone (CMZ), such that the buffer includes potential riparian habitat in the event of stream migration.
5. Where wetlands and geologically hazardous areas occur on a site that contains a fish and wildlife habitat conservation area, refer to Sections 200, Wetlands, and 400, Geologically Hazardous Areas, of this chapter for additional development standards. In cases of differing standards, the more restrictive RMZ or setback shall apply.
6. Building Setbacks. An additional building setback of fifteen feet is required from the edge of all riparian management zones.
a. If applicable, the required building setbacks may meet or contribute to specific yard setback requirements of Title 18.
b. Minor structural or impervious surface intrusions such as but not limited to fire escapes, open/uncovered porches, landing places, outside walkways, outside stairways, retaining walls, fences, and patios may be permitted within the required building setback if the director determines, upon submittal of a habitat management plan, that such intrusions will not adversely impact the RMZ. The setback shall be identified on the site plan or appropriate drawing.
7. New Development or Redevelopment. Standard RMZs and building setbacks for fish and wild-life habitat conservation areas shall be required as per Table 16.20.315.
Table 16.20.315—Fish and Wildlife Habitat Conservation Area Development Standards |
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Riparian Management Zone Setback Requirements |
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Water Type | RMZ Width (feet, each side of stream) | Building Setback (feet, each side of RMZ) |
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F1 (salmonids) | 200 | 15 |
F2 (nonsalmonids) | 150 | 15 |
Np | 100 | 15 |
Ns 1 (connected to S, F, Np) | 100 | 15 |
Ns 2 (not connected to S, F, Np) | 100 | 15 |
South Fork Dogfish Creek Stream-Reach-Specific RMZ and Building Setback Requirements |
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Stream Reach | RMZ (feet, each side of stream) | Building Setback (feet, each side of RMZ) |
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Tidewater/estuarine* | 100 | 15 |
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Lower forested | 100, or top of adjacent slope, whichever is greater | 15 |
Urban/commercial | 100 for new development and redevelopment; extent of existing constraints for existing development | 15 |
Canyon | Park boundary or top of slope, whichever is closest to stream, otherwise 100 or top of steep slope, whichever is greater | 15 |
Headwater | 100 | 15 |
Other Fish and Wildlife Habitat Conservation Areas |
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Riparian management zone widths and building setbacks for other regulated fish and wildlife habitat conservation areas not listed above will be determined on a case-by-case basis through a habitat management plan, which shall be based upon the most recent WDFW Priority Habitat and Species Management Recommendations. |
B. Changes to Standard Riparian Management Zone.
1. Provisions for Decreasing the Standard RMZ Recommended Through a Habitat Management Plan.
a. The director may decrease the standard buffer or building setback as recommended by a habitat management plan after consultation with the Washington State Department of Fish and Wildlife and the Suquamish Tribe, and determine that conditions are sufficient to protect the affected habitat. A habitat management plan shall be required. The director may reduce the RMZ or building setback width by up to twenty-five percent.
2. Provisions for Increasing RMZ. The director may increase the RMZ width whenever a specific development proposal has known locations of endangered or threatened species for which a habitat management plan indicates a larger RMZ is necessary to protect habitat values for such species.
3. Conditional Alterations. The director may alter the RMZ and building setback for water-dependent structures and utilities within a stream or RMZ when no other reasonable or practical alternative exists. Any alteration of an RMZ or building setback shall be the least necessary and shall require a habitat management plan which identifies and adequately protects any affected fish and wildlife conservation area.
C. Fish and wildlife habitat conservation areas and required RMZs shall be located within specified open space tracts. The specified open space tracts shall be identified on the underlying land use permit drawings and conditions of approval shall include provisions for preservation, maintenance and other requirements deemed necessary by the director and/or review authority.
D. All development permits on sites with known locations of fish and wildlife habitat conservation areas, or sites within three hundred feet to known locations of fish and wildlife habitat conservation areas, shall submit a habitat assessment or management plan as specified in Section 700 of this chapter for approval. In the case of bald eagles, an approved bald eagle management plan by the Washington Department of Fish and Wildlife, meeting the requirements and guidelines of the bald eagle protection rules (WAC
220-610-100), as now or hereafter amended, shall satisfy the requirements for a habitat management plan.
E. Habitat Assessment Report and Management Plan. For all regulated activity proposed on a site which contains or is within three hundred feet of fish and wildlife habitat conservation area, a habitat assessment shall be prepared by a qualified wildlife biologist. The habitat assessment shall identify the type of stream and its prescribed RMZ, an analysis of species or habitats known or suspected, and assessment of project impact or effect on habitat and water quality (see Section
16.20.750). If it is determined that a fish and wildlife habitat conservation area or its RMZ does not occur on or within three hundred feet of the site, or if it is demonstrated that the project will comply with the standard RMZ width and building setback requirements, the development may proceed without any additional requirements under this section. If it is determined that a fish and wildlife habitat conservation area does occur on or within three hundred feet of the site, and a modification (i.e., reduction, intrusion or impact) to the standard RMZ width and/or building setback is proposed, a habitat management plan shall be prepared. (See Section
16.20.730.)
F. Signs and Fencing. As a project condition of approval, the director or review authority may require the fish and wildlife habitat conservation area and RMZ be permanently fenced, signed or an acceptable alternative, to further protect the conservation area. Timing, location and type of installation shall be identified in the condition of approval. Fencing shall be required when reductions of RMZ or intrusions into building setback are approved.
G. Provisions for Expansions of Existing Development along Poulsbo Creek. Existing development adjacent to Poulsbo Creek which was lawfully constructed, approved or established prior to the effective date of the ordinance codified in this chapter, but which does not conform to present regulations or standards, may be expanded as follows:
1. A nonconforming single-family residence or mobile home may be enlarged up to fifty percent of its existing size as long as:
a. The new construction extends away from the critical area and related RMZ and building setback, is located over an existing impervious area, or is a second/third-story addition located over the existing structure;
b. The reconstruction and/or enlargement shall be appropriately mitigated to ensure the existing value and function of the critical area is not degraded;
c. Mitigation and enhancement is required as per subsection (G)(2) of this section;
d. The structure(s) are located outside of a flood hazard area and active landslide hazard area; and
e. The reconstruction and/or enlargement meets all other dimensional standards and requirements contained in the Poulsbo Municipal Code.
2. Requirements for mitigation and enhancement will be determined based on historic site impacts to the critical area, the scope of proposed alterations and require the preparation of a habitat management plan. Possible mitigation and enhancement may include, but shall not be limited to: prohibiting or limiting pruning of riparian vegetation; invasive plant removal and reestablishment of native trees and shrubs within existing RMZ areas; instream habitat improvements such as spawning gravel or large woody debris; requiring minimum stormwater treatment for new construction; and retrofitting existing impervious areas with minimum stormwater treatment where feasible. In certain instances, off-site mitigation and/or enhancement may also be required to benefit the watershed.
3. Proposals that propose to utilize these requirements shall require a critical area permit per Title 19, Project Permit Application Procedures.
(Ord. 2025-19 § 2 (Exh. A), 2025)