By admin Construction work at three channels in the southern end of the Sacramento-San Joaquin River Delta wrapped up Friday as part of the annual California Department of Water Resources South Delta Temporary Barriers Project, according to the department.
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Three temporary rock barriers have been constructed across South Delta channels to maintain water levels for agricultural activities in the South Delta. The project, undertaken in coordination with the South Delta Water Agency, was intended to offset impacts from water exports by the Central Valley Project and State Water Project pumping plants.
The barriers, which are constructed annually at Old River near Tracy, Middle River and Grant Line Canal beginning as early as May 1, are scheduled to be removed by Nov. 30, weather permitting. In the interim, the Department of Water Resources is providing portage services for boats navigating the waterways.
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The department is also advancing plans for the South Delta Gates project, which would replace the temporary rock barriers with permanent operable gates.
The annual milestone arrives just as the Delta Conveyance Project received federal clearance to advance construction this week. The project, championed by Gov. Gavin Newsom, aims to increase water supply reliability and reduce climate-related water losses. By 2040, California is expected to lose about 10% of its water supply because of hotter and drier conditions, according to a statement released Friday by the Governor’s Office.
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