20230608 08063100 FALSE 20240213 15085200 20240506 16065300 1.0 i06_Bathy_CVFED_Fugro_2010_Delta_AmericanRiver_FeatherRiver -13563054.066300 -13494864.634900 4586881.185100 4796394.619600 1 002 Projected GCS_WGS_1984 Linear Unit: Meter (1.000000) WGS_1984_Web_Mercator_Auxiliary_Sphere <ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/10.8'><WKT>PROJCS["WGS_1984_Web_Mercator_Auxiliary_Sphere",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Mercator_Auxiliary_Sphere"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",0.0],PARAMETER["Standard_Parallel_1",0.0],PARAMETER["Auxiliary_Sphere_Type",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",3857]]</WKT><XOrigin>-20037700</XOrigin><YOrigin>-30241100</YOrigin><XYScale>10000</XYScale><ZOrigin>0</ZOrigin><ZScale>1</ZScale><MOrigin>0</MOrigin><MScale>1</MScale><XYTolerance>0.001</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>102100</WKID><LatestWKID>3857</LatestWKID></ProjectedCoordinateSystem> FGDC FGDC CSDGM Metadata 150000000 5000 The purpose of the survey was to provide single beam bathymetric data in support of hydraulic model development for the Central Valley Floodplain Evaluation (CVFED) and Delineation program. Hydraulic models are used to delineate future floodplan boundaries compliant with DWR, USACE, and FEMA requirements. <DIV STYLE="text-align:Left;"><DIV><DIV>Fugro conducted single beam bathymetry surveys along portions of the Lower Sacramento River Basin, American River, and Feather River (including associated tributaries) on various dates in 2010. This consisted of over 190.5 miles of riverbed. More specifically, the survey areas included the underwater cross sections of the river bottom along portions of the Feather River, Honcut Creek, Knights Landing, Jack Slough, Yuba River, Yankee Slough, Bear River, Sacramento River, Elk Slough, Natomas Cross Canal, American River, Steamboat Slough, Miner Slough, Sutter Slough, Georgianna Slough, Three Mile Slough, Lindsey Slough, Cache Slough, Haas Slough, and Horseshoe Bend. This project was titled 'Central Valley Floodplain Evaluation and Delineation - Bathymetry Surveying in Support of Hydraulic Model Development' (contract number - 4600007989, task order no.18). The data were collected in NAD83 and NAVD88 datums (Horizontal Units: Feet, Vertical Units: Feet).Additionally, Fugro West, Inc. performed two reconnaissances of the Lower Sacramento River within the limits of the proposed bathymetric survey described in Task Order 18, California Department of Water Resources, Contract 4600007989. The first reconnaissance was performed during the periods of October 8th thru 13th, 2009, and the second reconnaissance was performed January 7th and 8th, 2010. The second reconnaissance was necessary due to the extension of the original survey limits.The purpose of the reconnaissance efforts was to gather information regarding possible launch facilities, emergency pick-up and drop-off locations, and potential hazards within the limits of the bathymetric survey. The reconnaissance was performed by driving along the levees and performing visual inspections along the survey areas including visiting all boat launch facilities. The locations were collected using a hand held GPS and noted in a log book. Based on data gathered hydrographic surveying can be performed along most of the areas with no major difficulties. Boat launches were found at acceptable intervals along the rivers to allow safe deployment and recovery of the survey vessel. Accommodations were found throughout the survey area allowing minimal travel and comfortable conditions.The following summarizes the condtions found with respect to the bathymetric surveys:• Feather River – good depths with some sand bars and debris from the Sacramento River to Boyds Pump Ramp, from this location to the north extent of the survey area some shallow areas with 3’-5’.• Honcut Creek – trees on both banks of river and areas of dense vegetation. No water then preventing any survey work.• Jack Slough – large amounts of vegetation and debris in water preventing any survey work.• Yuba River – good depths from Feather River to E Sreet bridge, from here east depths are 2’-3’.• Yankee Slough – large amounts of vegetation preventing any survey work.• Bear River – Could not get access into area from Sacramento River to Highway 70 Bridge, from this location heading East large amounts of vegetation preventing any survey.• Natomas Cross Canal – Narrow in some areas with large amounts of vegetation, may be able to survey partial area near Sacramento River.• American River – Shallow water 3’-6’ with rapids in some areas.• Knights Landing Ridge Cut - dense vegetation growth in river, preventing any survey.• Elk Slough - dense vegetation along the river banks, log debris in the river unable to survey.• Sacramento River – good surveying conditions throughout.• Steamboat Slough – good survey conditions throughout.• Miner Slough – good survey conditions throughout.• Sutter Slough - good survey conditions throughout.• Georgianna Slough - good survey conditions throughout.• Three Mile Slough - good survey conditions throughout.• Lindsey Slough - good survey conditions throughout.• Cache Slough - good survey conditions throughout. The associated data are considered DWR enterprise GIS data, which meet all appropriate requirements of the DWR Spatial Data Standards, specifically the DWR Spatial Data Standard version 3.5, dated April 12, 2023. DWR makes no warranties or guarantees — either expressed or implied — as to the completeness, accuracy, or correctness of the data. DWR neither accepts nor assumes liability arising from or for any incorrect, incomplete, or misleading subject data. Comments, problems, improvements, updates, or suggestions should be forwarded to gis@water.ca.gov.</DIV></DIV></DIV> Fugro West Inc. California DWR Floodplain Management Branch, Floodplain Mapping Section Bathymetry Single Beam CVFED Elevation ISO 006 Sacramento San Joaquin Delta 2010 Single Beam American River Feather River DWR GIS Atlas <DIV STYLE="text-align:Left;"><DIV><DIV>Not for use as a navigation aid. The data reflects measurements taken at specific time periods and the Department of Water Resources makes no claim as to the current state of these waterways. Do not share or publish this data without including proper attribution.The original source projection of the DWR GIS atlas dataset was California Teale Albers, NAD83. For copies of data in original projection, please contact DWR directly.</DIV></DIV></DIV> Version 6.2 (Build 9200) ; Esri ArcGIS 10.9.1.28388 i06_Bathy_CVFED_Fugro_2010_Delta_AmericanRiver_FeatherRiver 1 -121.838988 -121.226432 39.519733 38.052756 i06_Bathy_CVFED_Fugro_2010_Delta_AmericanRiver_FeatherRiver Feature Class 198238 OBJECTID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. OBJECTID OID 4 10 0 SHAPE Feature geometry. ESRI Coordinates defining the features. 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