This archived dataset was developed by DWR for its internal use. This data is not suitable for property boundary determination, construction layout, legal descriptions, or any other professional land surveying or legal purpose. The data represents estimates of past conditions and measurements, may contain errors, and is no longer representative of current conditions. Neither the State of California, its agents, nor its employees, make any warranty, representation or guarantee, express or implied; nor assumes any liability or responsibility for the accuracy, completeness, or usefulness of this data.

The California Department of Water Resources (DWR), North Central Region Office (NCRO), Bathymetry Data Collection Section, conducted a bathymetric survey of the Sacramento River South of Meridian near Twentymile Bar for the Division of Engineering Geodedic Branch. The main purpose of this data is to support a levee stability study.• Survey Dates: September 21, 2018 • Instrumentation: Multibeam echo sounder with Inertially-Aided Post-Processed Kinematic (IAPPK) GPS procedures• Density: 1 ft grid • Datum: NAD83 (California State Plane Zone II) horizontal, NAVD88 vertical