South Delta Temporary Barriers Project

14 Documents in Project


SCH Number
Lead Agency
California Department of Water Resources (DWR)
Document Title
South Delta Temporary Barriers Project
Document Type
NOD - Notice of Determination
Document Description
The proposed project involves annual installation and removal of three flow-control temporary rock barriers installed at Middle River near Victoria Canal (MR), Old River near Tracy (ORT), and grant Line Canal near Tracy Boulevard Bridge (GLC). It also includes the bi-annual installation and removal of one temporary rock barrier serving a dual purpose of fish control and flow control in the Spring and Fall at the head of Old river (HOR)near the San Joaquin River. As an alternative to installing the HOR barrier in the spring, DWR may opt to install a non-physical barrier at the head of Old River, as was done in 2009 and 2010. In addition, the MR weir height shall be raised by one foot, and in 2011, the project would include replacement of the GLC culverts and culvert frames, and incidental sediment removal adjacent to the culvert structures at the GLC barrier. Also, a 3-month fish monitoring program (2011 Fish Monitoring Program) shall be implemented from March 15 through June 15, concurrent with operations of the NPB (when installed). The study includes tagging and releasing salmon and steelhead throughout the south Delta, installing an acoustic receiver network, implementing a mobile monitoring effort to find acoustic tags on the river bottom using global positioning system (GPS), and sampling , tagging, and releasing up to 100 predatory fish 9obtained though electrofishing and/or hook and line sampling). DWR will also design and implement the Head of Old River (HOR) Predator Study with the intent of improving salmon smolt survival past the HOR during spring outmigration. This study would be implemented in conjunction with operation of the NPB.

Contact Information

Andrea Boertien
Agency Name
Contact Types
Lead/Public Agency


Lathrop, Tracy
San Joaquin
Cross Streets
Finck Road/Klein Road/San Joaquin Road/Tracy Boulevard
State Highways
Southern Pacific
Old River/Middle River/Grant Line Canal

Notice of Determination

Approving Agency
Approving Agency Role
Responsible Agency
Approved On


(1) The project will have a significant impact on the environment
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
(3) Mitigated measures were made a condition of the approval of the project
(4) A mitigation reporting or monitoring plan was adopted for this project
(5) A Statement of Overriding Considerations was adopted for this project
(6) Findings were made pursuant to the provisions of CEQA

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613.

Download CSV New Search Print