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Contaminant Concentrations in Sport Fish from San Francisco Bay, 2014. SFEI Contribution No. 806.2017.
San Francisco Bay Shore Inventory: Mapping for Sea Level Rise Planning. SFEI Contribution No. 779. San Francisco Estuary Institute: Richmond, CA.2016.
With rising sea levels and the increased likelihood of extreme weather events, it is important for regional agencies and local municipalities in the San Francisco Bay Area to have a clear understanding of the status, composition, condition, and elevation of our current Bay shore, including both natural features and built infrastructure.
The purpose of this Bay shore inventory is to create a comprehensive and consistent picture of today’s Bay shore features to inform regional planning. This dataset includes both structures engineered expressly for flood risk management (such as accredited levees) and features that affect flooding at the shore but are not designed or maintained for this purpose (such as berms, road embankments, and marshes). This mapping covers as much of the ‘real world’ influence on flooding and flood routing as possible, including the large number of non-accredited structures.
This information is needed to:
- identify areas vulnerable to flooding.
- identify adaptation constraints due to present Bay shore alignments; and
- suggest opportunities where beaches, wetlands, and floodplains can be maintained or restored and integrated into flood risk management strategies.
The primary focus of the project is therefore to inform regional planners and managers of Bay shore characteristics and vulnerabilities. The mapping presented here is neither to inform FEMA flood designation nor is it a replacement for site-specific analysis and design.
The mapping consists of two main elements:
- Mapping of Bay shore features (levees, berms, roads, railroads, embankments, etc.) which could affect flooding and flood routing.
- Attributing Bay shore features with additional information including elevations, armoring, ownership (when known), among others.
SFEI delineated and characterized the Bay shore inland to 3 meters (10ft) above mean higher high water (MHHW) to accommodate observed extreme water levels and the commonly used range of future sea level rise (SLR) scenarios. Elevated Bay shore features were mapped and classified as engineered levees, berms, embankments, transportation structures, wetlands, natural shoreline, channel openings, or water control structures. Mapped features were also attributed with elevation (vertical accuracy of <5cm reported in 30 meter (100ft) segments from LiDAR derived digital elevation models (DEMs), FEMA accreditation status, fortification (e.g., riprap, buttressing), frontage (e.g., whether a feature was fronted by a wetland or beach), ownership, and entity responsible for maintenance. Water control structures, ownership, and maintenance attributes were captured where data was available (not complete for entire dataset). The dataset was extensively reviewed and corrected by city, county, and natural resource agency staff in each county around the Bay. This report provides further description of the Bay shore inventory and methods used for developing the dataset. The result is a publicly accessible GIS spatial database.
Contaminants in Fish from California Rivers and Streams, 2011. California State Water Resources Control Board: Sacramento, CA.2013.
Contaminants in Fish From the California Coast, 2009-2010 Summary Report on a Two-Year Screening Survey. California State Water Resources Control Board: Sacramento, CA.2012.
SWAMP/RMP/Bight Program Report on Contaminants in Fish from the California Coast. California State Water Resources Control Board: Sacramento, CA.2011.
Contaminants in Fish from California Lakes and Reservoirs: Technical Report on Year One of a Two-Year Screening Study. California State Water Resources Control Board: Sacramento.2009.
Spatial trends and impairment assessment of mercury in sport fish in the Sacramento-San Joaquin Delta Watershed. Environmental Pollution . SFEI Contribution No. 575.2009.
California Bay-Delta Authority Fish Mercury Project, Year 2 (2006) Annual Report. Sport Fish Sampling and Analysis. SFEI Contribution No. 535. San Francisco Estuary Institute.2007.
The Relationship between Landscape Features and Sport Fish Mercury in the Sacramento-San Joaquin Delta Watershed. SFEI Contribution No. 534. San Francisco Estuary Institute.2007.