The mission of the Bay-Delta Office (BDO) is to plan facilities and implement actions in the Sacramento-San Joaquin Delta to improve water quality, water supply and reliability, and the ecosystem. The Office develops and maintains computer simulation models to analyze the effects of projects and actions proposed or undertaken by the Department or other agencies.

Katherine Kelly, Chief
Bay-Delta Office
California Department of Water Resources
1416, 9th Street, Room 215-37
Sacramento, CA 95814

e-mail: kkelly@water.ca.gov
Telephone: (916) 653-1099
FAX: (916) 653-6077

Fish Science Building Groundbreaking Ceremony

On February 1, 2013, DWR broke ground for the new Fish Science Building at Skinner Fish Facility in Byron.  Management and staff from the Bay Delta Office, Division of Engineering, and Delta Field Division were present during the ground breaking event.  The new facility will be used to tag and rear fish for studies to meet regulatory requirements for operation of the California State Water Project.  The new facility also includes a storage warehouse that will house the tools and equipment needed to conduct the studies.  Construction is scheduled for completion in late fall of 2013. Please click here to view the photos of the Fish Science Building groundbreaking ceremony. (02/12/2013)

2011 Georgiana Slough Non-Physical Barrier Performance Evaluation Project Report

DWR has released the “2011 Georgiana Slough Non-Physical Barrier Performance Evaluation Project Report”. This report documents results and conclusions of this study which evaluated use of a fish diversion technology at the junction of Georgiana Slough and the Sacramento River. This study suggests that use of this fish diversion technology can reduce the probability of juvenile Chinook salmon entrainment into Georgiana Slough by approximately two-thirds. The full report is available here. (09/28/2012)

SWP Delivery Reliability Report

The final State Water Project Delivery Reliability Report 2011 and Technical Addendum have been released. This report updates estimates of the current (2011) and future (2031) State Water Project delivery reliability and incorporates regulatory requirements for SWP and CVP operations in accordance with USFWS and NMFS biological opinions. Estimates of future reliability also reflect potential impacts of climate change and sea level rise. Printed copies are available upon request.

Requests for printed copies can be sent to:
California Department of Water Resources
SWP Delivery Reliability Report- Attn: Cynthia Pierson
P.O. Box 942836
Sacramento, CA 94236-0001
or emailed to: comments-on-2011drr@water.ca.gov

• The report can be accessed by clicking here (pdf download, 13 MB).
• The technical addendum can be accessed by clicking here (pdf download, 3 MB).
• The suite of CalSim-II studies used in the State Water Project Delivery Report 2011 and Technical Addendumcan be accessed by clicking here. (07/18/2012)

Public Release of CalLite Model Version 2.00 -- A Central Valley Water Resources Management Screening Tool

The California Department of Water Resources and the U.S. Bureau of Reclamation are pleased to announce public release of CalLite model version 2.00 - a Central Valley Water Resources Management Screening Tool. Please click here for more information and download. If you have any questions, please contact Nazrul Islam at nislam@water.ca.gov or 916-653-8727. (10/17/2011)

Evaluation of Mortality and Injury in a Fish Release Pipe Report Released

DWR has released the “Evaluation of Mortality and Injury in a Fish Release Pipe”. This report documents results and conclusions of a study spanning several years (2007-2008) to evaluate and quantify fish mortality and injury at the State Water Project Fish Release Site at Horseshoe Bend. The report provides baseline data and a series of recommendations designed to improve existing release sites and guide the construction of new release sites. The report is available for download by clicking here. (7/28/2010)

Release Site Predation Study Released

DWR has released the “Release Site Predation Study”. This report documents results and conclusions of studies spanning several years (2007-2008) to evaluate and quantify fish mortality at the state and federal release sites for salvaged fish with an emphasis on the SWP Release Site at Horseshoe Bend. The report provides baseline data and a series of recommendations designed to improve existing release sites and guide the construction of new release sites. The report is available for download by clicking here. (06/03/2010)

Low-flow Intake Technical Analysis Report Released

DWR has released an initial assessment for analyzing the feasibility and effectiveness of a low-flow screened intake to the Clifton Court Forebay (Forebay). The “Low-flow Intake Technical Analysis” describes conceptual alternatives for a low-flow screened intake to the Forebay and identifies additional information required for any subsequent assessment efforts. The report is available for download by clicking here. (02/01/2010)