Volume 1: Gorst Creek Watershed Characterization & Framework Plan
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KITSAP COUNTY CITY OF BREMERTON FIGURE 4. GORST CREEK WATERSHEDVolume CHARACTERIZATION 1: - INTEGRATED RESULTS Gorst Creek Watershed Watershed Boundary UGA Boundary Characterization & Framework Plan City Limits 21 Integrated Results Development City of Bremerton City Council Hearing - December 2013 Development 3A 12 Development 3B Development and Restoration Bremerton Protection West 4 13 UGA Protection and Restoration 2 20 Restoration 2A Restoration 2B 14 15 Restoration 2C Gorst UGA Development Addition Gorst UGA 19 5 7 9 6 1 11 17 3 ULID6 8 Port Orchard UGA SKIA UGA 16 10 City of Port Orchard 18 Date: September 2013 0 0.5 1 Source: Parametrix, Department of Ecology, Department of Fish & Wildlife, BERK Miles This page intentionally blank. VOLUME 1. GORST CREEK WATERSHED CHARACTERIZATION & FRAMEWORK PLAN City Council Hearing Draft – Preferred Alternative Part of a three-volume plan for Gorst Volume 1. Gorst Creek Watershed Characterization & Framework Plan (this plan) Volume 2. Gorst Planned Action Environmental Impact Statement (under separate cover) Volume 3. Gorst Subarea Plan (under separate cover) P REPARED FOR : City of Bremerton, lead agency Kitsap County December 2013 C R E D I T S Advisory Committee Patty Lent, Mayor, City of Bremerton Charlotte Garrido, Kitsap County Commissioner Jim McDonald, Bremerton City Council Representative Rob Purser, Suquamish Tribe Representative Greg Jose, Bremerton Planning Commission Representative Linda Rowe, Kitsap County Planning Commissioner Representative Project Partners In addition to City of Bremerton, Kitsap County, and Suquamish Tribe staff below, following are Project Partners representatives: Michelle Wilcox, US EPA George Wilhere, WDFW Jeffry Rodin, USEPA Fred Salisbury, Port of Bremerton Dr. Dino Marshalonis, USEPA Jan Brower, Kitsap County Health Department Lynn Wall, US Navy Grant Holdcroft, Kitsap Public Health District Steven Stanley, WDOE Kathleen Peters, West Sound Watersheds Council Mindy Roberts, WDOE Shawn Dinkuhn, Sustainable Bremerton Ann Dettelbach, WDOE Pat & Cheryl Lockhart, Private Property Owner Tim Quinn, WDFW Gary Anderson, Property Owner Representative Theresa Nation, WDFW City of Bremerton Staff Andrea L. Spencer, AICP, Director, Department of Community Development Allison Daniels, Bremerton City Planner Chal Martin, Director, Department of Public Works Tom Knuckey, Bremerton City Engineer Kitsap County Staff Eric Baker, Manager, Special Projects Division, Kitsap County Commissioner’s Office David Greetham, Environmental Planner, Community Development Department Katrina Knutson, Senior Planner, Community Development Department Suquamish Tribe Staff Alison O'Sullivan, Biologist, Suquamish Tribe Consultant Team Bill Webb, Project Manager, AECOM Lisa Grueter, AICP, Manager, Land Use Planning & SEPA Lead, BERK Kevin Gifford, Analyst, BERK Erik Rundell, Analyst, BERK Jennifer Thomas, Senior Wetland Scientist, Parametrix II Preferred Plan | December 2013 TABLE OF CONTENTS 1. Introduction and Purpose .................................................................................................................. 1-1 Overview ................................................................................................................................................ 1-1 Environmental Quality ........................................................................................................................... 1-3 Planning Purpose and Objectives .......................................................................................................... 1-4 2. Gorst Planning Process & Outreach ................................................................................................... 2-1 Planning Phases ..................................................................................................................................... 2-1 3. Natural and Built Environment Conditions ........................................................................................ 3-1 Study Area .............................................................................................................................................. 3-1 Natural and Sensitive Areas ................................................................................................................... 3-1 Land Use and Growth............................................................................................................................. 3-2 Transportation ....................................................................................................................................... 3-3 Utilities ................................................................................................................................................... 3-3 4. Watershed Characterization .............................................................................................................. 4-1 Overview ................................................................................................................................................ 4-1 Water Processes Characterization ......................................................................................................... 4-1 Fish and Wildlife Habitat Characterization ............................................................................................ 4-3 Integrated Results .................................................................................................................................. 4-6 5. Watershed Management Concepts ................................................................................................... 5-1 Clustered Development ......................................................................................................................... 5-1 Low Impact Development ...................................................................................................................... 5-1 Habitat Restoration ................................................................................................................................ 5-2 6. Guiding Principles .............................................................................................................................. 6-1 7. Watershed Goals, Policies & Objectives ............................................................................................ 7-1 Habitat Goals and Policies ...................................................................................................................... 7-1 Stormwater Goals and Policies .............................................................................................................. 7-1 Land Use and Growth Goals and Policies ............................................................................................... 7-2 Measurable Objectives .......................................................................................................................... 7-3 8. References ......................................................................................................................................... 8-1 Appendix A. Watershed Characterization Study ...................................................................................... A-1 Appendix B. Revised assessment for Gorst Watershed ............................................................................. B-1 Preferred Plan | December 2013 List of Figures Figure 1-1. Gorst Creek Watershed Aerial ................................................................................................. 1-2 Figure 2-1. Planning Process and Schedule ............................................................................................... 2-2 Figure 3-1. Gorst Creek Watershed: Land Cover ....................................................................................... 3-4 Figure 3-2. Gorst Watershed Wetland/Stream Buffers ............................................................................. 3-5 Figure 3-3. Gorst Watershed Hazard Areas ............................................................................................... 3-6 Figure 3-4. Gorst Watershed Planning Area: Wellhead Protection Zones ................................................ 3-7 Figure 3-5. Gorst: Comparison of Shoreline Master Program Designations.............................................. 3-8 Figure 3-6. Gorst Watershed Planning Area: Land Use ............................................................................. 3-9 Figure 4-1. Watershed Characterization Results: Water Processes .......................................................... 4-2 Figure 4-2. Open Space Blocks and Habitat Value ..................................................................................... 4-4 Figure 4-3. Results of the Nearshore Habitat Assessment and PSNERP’s Assessment of Drift Cells ........ 4-5 Figure 4-4. Gorst Watershed Assessment Units: Integrated Results ......................................................... 4-8 Figure 5-1. Example Cluster Development ................................................................................................ 5-1 Figure 5-2. Biofiltration Techniques ........................................................................................................... 5-2 Figure 5-3. Sinclair Inlet Restoration .......................................................................................................... 5-2 Figure 5-4. Gorst Watershed Planning Area: Fish Passage Barriers..........................................................