FINAL GEOSPATIAL METHODOLOGY USED IN THE PSNERP COMPREHENSIVE CHANGE ANALYSIS OF PUGET SOUND PUGET SOUND NEARSHORE ECOSYSTEM RESTORATION PROJECT Prepared for U.S. Army Corps of Engineers, Seattle District and Washington State Department of Fish and Wildlife Prepared In Support of Prepared by Anchor QEA, LLC 1423 Third Avenue, Suite 300 Seattle, Washington 98101 In Association With Additional Anchor Team consultants and Salmon and Steelhead Habitat Inventory and Assessment Program Northwest Indian Fisheries Commission Point‐No‐Point Treaty Council Skagit River System Cooperative University of Washington Wetland Ecosystem Team May 2009 Table of Contents PREFACE BY THE PUGET SOUND NEARSHORE ECOSYSTEM RESTORATION PROJECT NEARSHORE SCIENCE TEAM .............................................................................................................. 1 1 INTRODUCTION AND PROCESS OVERVIEW............................................................................ 1 2 DATA DISCOVERY ............................................................................................................................ 3 3 DATABASE STRUCTURE ............................................................................................................... 10 3.1 Spatial Hierarchy, Scale, and Metrics.................................................................................... 11 3.2 Nested Spatial Components (Geographic Scale Units [GSUs])......................................... 13 3.2.1 Shoreline GSUs................................................................................................................... 14 3.2.2 Delta GSUs.......................................................................................................................... 15 3.2.3 Shoreline and Delta Overlap ............................................................................................ 17 3.2.4 GSU Table Structure.......................................................................................................... 17 3.3 Geodatabase Architecture....................................................................................................... 18 3.4 Long‐Term Database Support ................................................................................................ 19 4 DATA DEVELOPMENT AND SYNTHESIS ................................................................................. 21 4.1 Geographic Scale Units (GSUs).............................................................................................. 37 4.1.1 Description.......................................................................................................................... 37 4.1.2 Data Processing.................................................................................................................. 45 4.1.3 Data Quality........................................................................................................................ 50 4.2 Historic Shoreform................................................................................................................... 50 4.2.1 Description.......................................................................................................................... 50 4.2.2 Data Processing.................................................................................................................. 65 4.2.3 Data Quality........................................................................................................................ 76 4.3 Current Shoreline..................................................................................................................... 76 4.3.1 Description.......................................................................................................................... 76 4.3.2 Data Processing.................................................................................................................. 76 4.3.3 Data Quality........................................................................................................................ 76 4.4 Shoreform Change ................................................................................................................... 77 4.4.1 Description.......................................................................................................................... 77 4.4.2 Data Processing.................................................................................................................. 77 4.4.3 Data Synthesis .................................................................................................................... 83 4.4.4 Data Quality........................................................................................................................ 85 4.5 Armoring................................................................................................................................... 85 4.5.1 Description.......................................................................................................................... 85 4.5.2 Data Processing.................................................................................................................. 86 4.5.3 Data Quality........................................................................................................................ 87 4.6 Breakwaters/Jetties................................................................................................................... 87 4.6.1 Description.......................................................................................................................... 87 4.6.2 Data Processing.................................................................................................................. 87 4.6.3 Data Quality........................................................................................................................ 87 Geospatial Methodology used in the PSNERP Comprehensive Change Analysis of Puget Sound May 2009 Puget Sound Nearshore Ecosystem Restoration Project i 070202‐01 Table of Contents 4.7 Marinas...................................................................................................................................... 88 4.7.1 Description.......................................................................................................................... 88 4.7.2 Data Processing.................................................................................................................. 88 4.7.3 Data Quality........................................................................................................................ 88 4.8 Nearshore Fill ........................................................................................................................... 89 4.8.1 Description.......................................................................................................................... 89 4.8.2 Data Processing.................................................................................................................. 89 4.8.3 Data Quality........................................................................................................................ 89 4.9 Overwater Structures............................................................................................................... 90 4.9.1 Description.......................................................................................................................... 90 4.9.2 Data Processing.................................................................................................................. 90 4.9.3 Data Quality........................................................................................................................ 90 4.10 Railroads, Abandoned (Nearshore Only)............................................................................. 91 4.10.1 Description.......................................................................................................................... 91 4.10.2 Data Processing.................................................................................................................. 91 4.10.3 Data Quality........................................................................................................................ 91 4.11 Railroads, Active (Nearshore Only) ...................................................................................... 91 4.11.1 Description.......................................................................................................................... 91 4.11.2 Data Processing.................................................................................................................. 92 4.11.3 Data Quality........................................................................................................................ 92 4.12 Roads (Nearshore Only).......................................................................................................... 92 4.12.1 Description.......................................................................................................................... 92 4.12.2 Data Processing.................................................................................................................. 92 4.12.3 Data Quality........................................................................................................................ 92 4.13 Tidal Barriers ...........................................................................................................................