OCEAN BEACH-GREAT HIGHWAY STORM DAMAGE PROTECTION PROJECT Final Report Prepared for: May 31, 2005 San Francisco Department of Public Works U.S. Army Corps of Engineers OCEAN BEACH-GREAT HIGHWAY STORM DAMAGE PROTECTION PROJECT Final Report Prepared for: May 31, 2005 San Francisco Department of Public Works U.S. Army Corps of Engineers TABLE OF CONTENTS OCEAN BEACH – GREAT HIGHWAY STORM DAMAGE PROTECTION PROJECT CHAPTER 1 DESCRIPTION OF PROJECT AND ALTERNATIVES............................ 1-1 1.1 Introduction ................................................................................................................1-1 Project History .......................................................................................................... 1-1 Current Process......................................................................................................... 1-5 1.2 Planning Objectives.................................................................................................... 1-6 1.3 Planning Constraints................................................................................................... 1-7 1.4 Project Alternatives to be Evaluated .......................................................................... 1-9 No Action Alternative............................................................................................... 1-9 Hard Structures (Armoring) Alternative................................................................... 1-9 Soft Structure (Beach/Dune Nourishment) Alternative.......................................... 1-10 Breakwater or Artificial Reefs Alternative ............................................................. 1-10 Facilitated Retreat Alternative ................................................................................ 1-10 Dredged Material Reuse Alternative ...................................................................... 1-11 CHAPTER 2 MANAGEMENT GUIDELINES, ENVIRONMENTAL POLICIES AND OPERATING PRINCIPLES SYNOPSIS ...................................................... 2-1 2.1 Introduction ................................................................................................................2-1 Covered Agencies..................................................................................................... 2-1 2.2 Federal Agencies ........................................................................................................ 2-1 United States Army Corps of Engineers................................................................... 2-1 National Park Service ............................................................................................... 2-9 Golden Gate National Recreation Area .................................................................. 2-10 NOAA’s National Marine Fisheries Service .......................................................... 2-14 U.S. Fish and Wildlife Service ............................................................................... 2-15 2.3 State Agencies.......................................................................................................... 2-17 California Department of Boating and Waterways................................................. 2-17 Regional Water Quality Control Board – San Francisco Region 2 ........................ 2-20 California Department of Fish and Game............................................................... 2-20 California Coastal Commission .............................................................................. 2-21 State Lands Commission ........................................................................................ 2-24 2.4 Local Agencies......................................................................................................... 2-24 San Francisco Department of the Environment (SF Environment) ........................ 2-24 San Francisco Recreation and Parks Department ................................................... 2-26 San Francisco Department of Public Works........................................................... 2-28 San Francisco Department of Parking and Traffic.................................................. 2-28 San Francisco Public Utilities Commission............................................................ 2-30 San Francisco Zoo .................................................................................................. 2-31 Ocean Beach – Great Highway ii Final Report Storm Damage Protection Project May 2005 Table of Contents CHAPTER 3: SEDIMENT TRANSPORT PROCESSES UPDATE ................................... 3-1 3.1 Introduction ................................................................................................................3-1 Background............................................................................................................... 3-1 Scope of Work .......................................................................................................... 3-1 3.2 Recent History and Events ......................................................................................... 3-4 Erosion Related Impacts / Observations................................................................... 3-4 Ongoing Monitoring ............................................................................................... 3-10 3.3 Sediment Transport Processes and Shoreline Changes ............................................ 3-11 Summary of Recent Relevant Studies..................................................................... 3-11 3.4 Implications of New Data ........................................................................................ 3-24 Summary of Findings.............................................................................................. 3-24 CHAPTER 4 EXISTING ENVIRONMENT AND POTENTIAL CONSTRAINTS......... 4-1 4.1 Introduction ................................................................................................................4-1 4.2 Topics Considered in this Preliminary Assessment ................................................... 4-1 Natural Resources..................................................................................................... 4-1 Social Resources....................................................................................................... 4-2 4.3 Natural Resources Discussion .................................................................................... 4-2 Existing Land Use Conditions .................................................................................. 4-2 Biological Resource Conditions ............................................................................... 4-4 Cultural Resource Conditions................................................................................... 4-5 Hazardous Materials Conditions............................................................................... 4-6 Noise Effects on Sensitive Receptors ....................................................................... 4-9 Air Quality Effects on Sensitive Receptors .............................................................. 4-9 4.4 Social Resources Discussion .................................................................................... 4-10 Traffic Conditions................................................................................................... 4-10 Local Business Access Conditions ......................................................................... 4-10 Recreational Access and Public Use Conditions .................................................... 4-10 Visual Resource Conditions.................................................................................... 4-11 4.5 Preliminary Constraints Discussion.......................................................................... 4-11 Biological Resources .............................................................................................. 4-11 Cultural Resources.................................................................................................. 4-12 Hazardous Materials ............................................................................................... 4-12 Local Business ........................................................................................................ 4-13 Noise ................................................................................................................... 4-14 Air Quality .............................................................................................................. 4-16 4.6 Conclusion................................................................................................................ 4-17 CHAPTER 5 STAKEHOLDER PERSPECTIVES.............................................................. 5-1 5.1 Introduction ................................................................................................................5-1 5.2 Questionnaire Results................................................................................................. 5-2 Jurisdiction................................................................................................................ 5-2 Internal Guidance on Management and Enforcement............................................... 5-2 Sufficiency of Alternatives ....................................................................................... 5-5 Preferred Alternatives ............................................................................................... 5-6 Acceptability