Southwest of Sacramento, the branching arms of waterways reach into a patchwork of farm fields and pastures. Canals and wetlands fringed with reeds meet a sunbaked expanse of dry meadows.
These lands on the northwestern edge of the Sacramento-San Joaquin River Delta have now been targeted for restoration following the widespread destruction of estuary marsh habitats that began over a century ago.
The third attempt could be the charm for repairing California’s main waterworks, the Sacramento-San Joaquin River Delta.
On paper at least, the latest plan by a governor to upgrade the delta into a more reliable state water supply seems to make much more sense than what his predecessors promoted.
Gov. Gavin Newsom’s single-tunnel proposal is smaller and more respectful of the bucolic estuary’s small farms, waterfowl habitat, unique recreational boating and historic tiny communities. So, it’s potentially less controversial.
Gov. Gavin Newsom’s office renewed its commitment on Wednesday to launching California’s biggest water project in half a century, unveiling a newly configured plan for a 45-mile conveyance tunnel through the Sacramento-San Joaquin River Delta.
The estimated $16 billion pipeline, iterations of which have circulated for decades, is designed to better move water from the state’s wet, rural north to drier, more populated points south. The proposed tunnel would allow water shipments to bypass the delta’s sensitive wetlands and aging water infrastructure, thereby protecting and even boosting water supplies for the Bay Area, Southern California and farmland in between.
Three years ago, amid shaky political support and uncertain funding, Gov. Gavin Newsom killed plans by his predecessor, Jerry Brown, to build two massive tunnels under the Sacramento-San Joaquin Valley Delta to more easily move water south.
Tribes and environmental groups are challenging how the state manages water in the Sacramento-San Joaquin River Delta, a major source for much of California, arguing the deterioration of the aquatic ecosystem has links to the state’s troubled legacy of racism and oppression of Native people.
A group of activists and Indigenous leaders is demanding that the state review and update the water quality plan for the Delta and San Francisco Bay, where fish species are suffering, algae blooms have worsened and climate change is adding to the stresses.
Land and waterway managers labored hard over the course of a century to control California’s unruly rivers by building dams and levees to slow and contain their water. Now, farmers, environmentalists and agencies are undoing some of that work as part of an accelerating campaign to restore the state’s major floodplains.
Freshly cut off from their chief water supply, a group of California water agencies in one of the state’s most fertile farming areas sued on Wednesday to freeze the latest round of emergency drought rules.
In a lawsuit filed in Sacramento County Superior Court, the suppliers argue they were denied due process when state regulators ordered thousands of landowners last month to cease diversions from the Sacramento-San Joaquin River Delta due to drought conditions. They claim the sweeping water curtailments were based off faulty data and will cause permanent damage to pricey fruit and nut orchards.
The Turlock and Modesto irrigation districts are among water right holders ordered by the state to stop diversions on the Tuolumne River and other streams that flow to the Sacramento-San Joaquin River delta.
“All of the water that flows off the mountains has to remain in the river and can’t be diverted for storage or irrigation purposes,” said Michael Cooke, director of regulatory affairs for TID, who explained the state drought orders Tuesday to Stanislaus County supervisors.
Drought conditions have prompted the building of a 750-foot wide rock barrier to prevent saltwater intrusion into the Sacramento-San Joaquin River Delta.
The California Department of Water Resources constructed the temporary barrier with 110,000 cubic yards of rock off West False River in Contra Costa County. Principal engineer Jacob McQuirk said that without the barrier, saltwater would endanger freshwater supplies in the Delta and water exports to the south.
“Every tidal cycle, that saltwater slowly propagates into the interior Delta,” he said. “Really, the beneficial uses of the interior Delta, they include agricultural supply, also interior municipal supplies.”
Normally the cargo moving through the Sacramento-San Joaquin River Delta contains expensive commodities meant for ports all around the world, but in drought-riddled California the most indispensable freight is currently destined for the river bottom.
Tugboats pushing and pulling barges loaded with boulders have suddenly become key performers in the state’s battle with a rapidly expanding drought, delivering supplies needed to reinforce California’s buckling water system. Around the clock crews dump the expensive cargo into the river strategically, racing to block salty tidal flows from the water pumps that sustain billions of dollars worth of crops hundreds of miles away.
The Water News Network is San Diego County’s source for water news and information.
