Planning Commission Recommendation Copy –Clean Copy Wahkiakum County & Town of Cathlamet Deliverable 9.1 Grant No. G1400483 SHORELINE MASTER PROGRAM – FINAL DRAFT FOR SHORELINES IN WAHKIAKUM COUNTY AND THE TOWN OF CATHLAMET PREPARED BY: 818 COMMERCIAL STREET, SUITE 203 ASTORIA, OR 97103 THIS PROGRAM WAS FUNDED IN PART THROUGH (503) 325 - 0435 A GRANT FROM THE WASHINGTON WWW.COLUMBIAESTUARY.ORG DEPARTMENT OF ECOLOGY Planning Commission Recommendation Copy –Clean Copy Wahkiakum County & Town of Cathlamet Deliverable 9.1 Grant No. G1400483 Blank Page Planning Commission Recommendation Copy – Clean Copy Wahkiakum County & Town of Cathlamet Deliverable 9.1 Grant No. G1400483 TABLE OF CONTENTS CHAPTER 1 – INTRODUCTION ..................................................................................... 1 1.1 Purpose ............................................................................................................................................. 1 1.2 Key Concepts ................................................................................................................................... 1 1.3 Shoreline Jurisdiction ...................................................................................................................... 2 1.4 Compliance and Relationship to Other Regulations .................................................................. 5 1.5 Public Participation .......................................................................................................................... 5 CHAPTER 2 – INVENTORY AND CHARACTERIZATION SUMMARY .......................... 7 2.1 Background and Purpose ............................................................................................................... 7 2.2 Summary of Findings ...................................................................................................................... 7 CHAPTER 3 – DEFINITIONS & ACRONYMS ................................................................ 9 3.1 Unlisted Words or Phrases ............................................................................................................ 9 3.2 Definitions ......................................................................................................................................... 9 3.3 Acronyms .......................................................................................................................................... 23 CHAPTER 4 – SHORELINE ENVIRONMENT DESIGNATIONS .................................. 24 4.1 Basis of Designations ................................................................................................................... 24 4.2 Shoreline Environment Designation Maps ................................................................................ 24 4.3 Natural (N) ...................................................................................................................................... 25 4.4 Rural Conservancy (RC) .............................................................................................................. 27 4.5 Aquatic (A) ...................................................................................................................................... 27 4.6 Mixed Waterfront (MW) ................................................................................................................. 28 4.7 Town Residential (R) ..................................................................................................................... 29 4.8 Town Conservancy (TC) ............................................................................................................... 30 4.9 Allowed Uses in Each Shoreline Environment Designation .................................................... 31 CHAPTER 5 – GOALS, POLICIES, & REGULATIONS ................................................ 32 5.1 Shoreline Master Program Goals ................................................................................................ 32 5.2 General Goals and Policies ......................................................................................................... 32 5.2.1 Ecological Functions ................................................................................................32 5.2.2 Local Character .........................................................................................................33 5.2.3 Archeological and Historic Resources .......................................................................33 5.2.4 Critical Areas .............................................................................................................35 i Planning Commission Recommendation Copy – Clean Copy Wahkiakum County & Town of Cathlamet Deliverable 9.1 Grant No. G1400483 5.2.5 Flood Hazard Reduction ............................................................................................37 5.2.6 Economic Development ............................................................................................40 5.2.7 Public Access ............................................................................................................40 5.2.8 Recreational Development ........................................................................................44 5.2.9 Transportation, Parking & Circulation ........................................................................45 5.2.10 Vegetation Conservation .........................................................................................47 5.2.11 Water Quality & Quantity .........................................................................................48 5.3 Specific Shoreline Use, Development, and Modification Policies and Regulations ............ 48 5.3.1 Modifications Generally .............................................................................................49 5.3.2 Prohibited Uses .........................................................................................................49 5.3.3 Specific Shoreline Use, Development & Modification Regulations ............................49 5.3.4 Agriculture .................................................................................................................50 5.3.5 Aquaculture ...............................................................................................................52 5.3.6 Boating Facilities .......................................................................................................54 5.3.7 Breakwaters, Jetties & Groins ...................................................................................61 5.3.8 Commercial & Industrial ............................................................................................62 5.3.9 Dredging & Dredge Material Disposal .......................................................................65 5.3.10 Fill & Excavation ......................................................................................................69 5.3.11 Forest Practices ......................................................................................................70 5.3.12 Habitat and Natural Systems Restoration & Enhancement ......................................72 5.3.13 In-Stream Structures ...............................................................................................73 5.3.14 Mining .....................................................................................................................75 5.3.15 Residential ..............................................................................................................78 5.3.16 Shoreline Stabilization .............................................................................................82 5.3.17 Utilities ....................................................................................................................86 Chapter 6: Critical Areas Regulations ........................................................................... 95 6.1. General Provisions ...................................................................................................................... 95 6.2 Mitigation Requirements for All Critical Areas ......................................................................... 106 6.3 Mitigation Plan Content Requirements for All Critical Areas ................................................. 108 6.4 General Wetland Regulations .................................................................................................... 111 6.5 Initial Project Review ................................................................................................................... 111 6.6 Activities in Wetlands and Buffers ............................................................................................. 113 6.7 Wetland Buffers ........................................................................................................................... 114 ii Planning Commission Recommendation Copy – Clean Copy Wahkiakum County & Town of Cathlamet Deliverable 9.1 Grant No. G1400483 6.8 Mitigation for Wetland Impacts .................................................................................................. 120 6.9 Frequently Flooded Areas Regulations .................................................................................... 126 Critical Areas Regulations: Geological Hazard ........................................................ 126 6.10 Geological Hazard Regulations ..............................................................................................