California would not exist as it does today were it not for the
extensive system of levees, weirs and flood bypasses that have
been built through the years, particularly in the Sacramento-San
Joaquin Delta.
Gov. Gavin Newsom on Wednesday declared a state of emergency
for San Joaquin County following last year’s failure of the
Victoria Island Levee. The emergency proclamation allows
the Governor’s Office of Emergency Services to assist the
county with additional work to shore up the levee, according to
a news release from Newsom’s office. San Joaquin County
first submitted a request for financial assistance to the
California Disaster Assistance Act on Nov. 6, 2024, officials
said. … The failure of the levee in October 2024
included a 2,000-foot section of the breakwater that caused the
release of water at an estimated 6,000 gallons per minute
through its base, the state said. Reclamation District
engineers found slumping last fall along the Old River on
Victoria Island, near Highway 4, between Stockton and Discovery
Bay. … Additional work began in late November as crews
scrambled to repair the damaged section of levee before winter
rains could damage it further.
President Donald Trump has taken millions of dollars already
allocated to blue states—and reallocated the funding to red
states—impacting a wide array of ongoing critical
infrastructure projects, including the Pajaro River Flood
Management Project. … Also losing funding are the
American River Common Features Levee Improvement Project, the
Lower San Joaquin River Project and the West Sacramento
Project. Pajaro River Flood Management Agency (PRFMA) Director
Mark Strudley said that construction is still expected to start
this fall on Reach 6, which runs along Corralitos Creek from
Green Valley Road to East Lake Avenue. That portion of the
project is funded by $156 million already allocated to the
project. … PRFMA was also counting on—and what Trump zeroed
out—was $38.5 million in funding for the Pajaro River Levee
project provided by Congress to the Army Corps under
Republicans’ yearlong continuing resolution for fiscal year
2025.
The Trump administration has canceled $33 million worth of
federal funds meant to help pay for earthquake retrofits in
California — sparking “grave concern” and a call to reconsider
from one of the state’s highest elected officials.
… FEMA issued a statement on April 4 announcing the
cancellation of the Building Resilient Infrastructure and
Communities program, known as BRIC, that would have funded the
California earthquake retrofits. … Also in jeopardy is up to
$50 million in funding apiece for a Port of San Francisco
coastal resilience project, a flood protection
project for the Menlo Park area, a flood
adaptation project in Oakland and Alameda, a Sutter
Bypass levee project in the Central Valley,
for water supply resiliency for the city of
Riverbank in Stanislaus County, and for infrastructure
resiliency for the city of Pacifica in San Mateo County.
The Trump administration significantly cut funding for flood
prevention projects in blue states across the country while
creating new water construction opportunities in red states,
undoing a Biden-era budget proposal that would have allocated
money more evenly, according to a data analysis prepared by
Democratic staffers. California and the state
of Washington lost the most funds, with the administration
cutting water construction budget for those states by a
combined $606 million, according to the analysis, which was
shared with CNN. Texas, meanwhile, gained $206 million. …
Collectively, states with Democratic senators lost over $436
million in funding compared to what they would have received
under the last proposed budget of President Joe Biden’s
administration, the data analysis shows. Republican-led states
gained more than $257 million, the analysis shows.
A group of 15 specialists met Wednesday, Thursday and Friday to
evaluate the condition of the levee that runs along the south
side of the Feather River from the Montgomery Street roundabout
to Ophir Road in Oroville. Geotechnical experts from the U.S.
Army Corp of Engineers were joined by representatives from the
California Department of Water Resources, the Sutter Butte
Flood Control Agency and flood-modeling specialist consultants
long with Oroville city engineers, administration and the mayor
conducted “an in-depth evaluation of the levee, which has
safeguarded our community since its original construction in
1913,” said Oroville Mayor Dave Pittman. … The group
conducted the inspection of the levee known as Butte County
Levee 52 by car and on foot. The city expects to receive a full
analysis of the findings in the next 60 to 75 days, according
to Brian Ring, Oroville city administrator.
American River Trees (ART), a grassroots organization based
in Sacramento, arranged a walk Sunday morning to protest
a U.S. Army Corps of Engineers’ (USACE) erosion
project. The USACE project, which aims to alleviate flood risk,
threatens the destruction of nearly 700 trees and miles of
habitat in the American River Parkway, according to ART. The
group walked during its protest a two-mile stretch of trail
from the Kadema Drive River Access to Larchmont Community
Park. ART says many trails, beaches and access to the
river’s edge will be lost, and USACE hasn’t sufficiently looked
into or incorporated less destructive alternatives.
… The organization said flood risk is exaggerated as the
stretch of river is relatively straight, has slower velocities
than downstream sites, and seepage walls in reinforced levees
are built to withstand water against them.
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.
This tour guided participants on a virtual journey deep into California’s most crucial water and ecological resource – the Sacramento-San Joaquin Delta. The 720,000-acre network of islands and canals support the state’s two major water systems – the State Water Project and the Central Valley Project. The Delta and the connecting San Francisco Bay form the largest freshwater tidal estuary of its kind on the West coast.
Many of California’s watersheds are
notoriously flashy – swerving from below-average flows to jarring
flood conditions in quick order. The state needs all the water it
can get from storms, but current flood management guidelines are
strict and unyielding, requiring reservoirs to dump water each
winter to make space for flood flows that may not come.
However, new tools and operating methods are emerging that could
lead the way to a redefined system that improves both water
supply and flood protection capabilities.
Farmers in the Central Valley are broiling about California’s plan to increase flows in the Sacramento and San Joaquin river systems to help struggling salmon runs avoid extinction. But in one corner of the fertile breadbasket, River Garden Farms is taking part in some extraordinary efforts to provide the embattled fish with refuge from predators and enough food to eat.
And while there is no direct benefit to one farm’s voluntary actions, the belief is what’s good for the fish is good for the farmers.
Along the banks of the
Sacramento-San Joaquin Delta in Oakley, about 50 miles southwest
of Sacramento, is a park that harkens back to the days when the
Delta lured Native Americans, Spanish explorers, French fur
trappers, and later farmers to its abundant wildlife and rich
soil.
That historical Delta was an enormous marsh linked to the two
freshwater rivers entering from the north and south, and tidal
flows coming from the San Francisco Bay. After the Gold Rush,
settlers began building levees and farms, changing the landscape
and altering the habitat.
15-minute DVD that graphically portrays the potential disaster
should a major earthquake hit the Sacramento-San Joaquin Delta.
“Delta Warning” depicts what would happen in the event of an
earthquake registering 6.5 on the Richter scale: 30 levee breaks,
16 flooded islands and a 300 billion gallon intrusion of salt
water from the Bay – the “big gulp” – which would shut down the
State Water Project and Central Valley Project pumping plants.
The 24-page Layperson’s Guide to the State Water Project provides
an overview of the California-funded and constructed State Water
Project.
The State Water Project is best known for the 444-mile-long
aqueduct that provides water from the Delta to San Joaquin Valley
agriculture and southern California cities. The guide contains
information about the project’s history and facilities.
The 24-page Layperson’s Guide to Flood Management explains the
physical flood control system, including levees; discusses
previous flood events (including the 1997 flooding); explores
issues of floodplain management and development; provides an
overview of flood forecasting; and outlines ongoing flood control
projects.
The 24-page Layperson’s Guide to the Delta explores the competing
uses and demands on California’s Sacramento-San Joaquin Delta.
Included in the guide are sections on the history of the Delta,
its role in the state’s water system, and its many complex issues
with sections on water quality, levees, salinity and agricultural
drainage, fish and wildlife, and water distribution.
A new look for our most popular product! And it’s the perfect
gift for the water wonk in your life.
Our 24×36-inch California Water Map is widely known for being the
definitive poster that shows the integral role water plays in the
state. On this updated version, it is easier to see California’s
natural waterways and man-made reservoirs and aqueducts
– including federally, state and locally funded
projects – the wild and scenic rivers system, and
natural lakes. The map features beautiful photos of
California’s natural environment, rivers, water projects,
wildlife, and urban and agricultural uses and the
text focuses on key issues: water supply, water use, water
projects, the Delta, wild and scenic rivers and the Colorado
River.
With the dual threats of aging levees and anticipated rising sea levels,
floodplains — low
areas along waterways that flood during wet years — are
increasingly at the forefront of many public policy and water
issues in California.
Adding to the challenges, many floodplains have been heavily
developed and are home to major cities such as Sacramento. Large
parts of California’s valleys are historic floodplains as well.
Roughly 1,115 miles of levees protect farms, cities, schools and
people in and around the Sacramento-San Joaquin
Delta, a crucial conduit for California’s overall water
supply. But the Delta’s levees are vulnerable to failure due to
floods, earthquakes and rising sea levels brought about by
climate change. A widespread failure could imperil the state’s
water supply.
California would not exist as it does today were it not for the
extensive system of levees, weirs and flood bypasses that have
been built through the years, particularly in the Sacramento-San Joaquin
Delta.
These levees have been in place dating back to 1850, when
California first joined the union.
This issue of Western Water looks at the BDCP and the
Coalition to Support Delta Projects, issues that are aimed at
improving the health and safety of the Delta while solidifying
California’s long-term water supply reliability.
This printed issue of Western Water examines the issues
associated with the State Water Board’s proposed revision of the
water quality Bay-Delta Plan, most notably the question of
whether additional flows are needed for the system, and how they
might be provided.
This printed issue of Western Water discusses several
flood-related issues, including the proposed Central Valley Flood
Protection Plan, the FEMA remapping process and the dispute
between the state and the Corps regarding the levee vegetation
policy.
Levees are one of those pieces of engineering that are never
really appreciated until they fail. California would not exist as
it does today were it not for the extensive system of levees,
weirs and flood bypasses that have been built through the years.
This printed copy of Western Water examines the Delta through the
many ongoing activities focusing on it, most notably the Delta
Vision process. Many hours of testimony, research, legal
proceedings, public hearings and discussion have occurred and
will continue as the state seeks the ultimate solution to the
problems tied to the Delta.
This printed copy of Western Water examines climate change –
what’s known about it, the remaining uncertainty and what steps
water agencies are talking to prepare for its impact. Much of the
information comes from the October 2007 California Climate Change
and Water Adaptation Summit sponsored by the Water Education
Foundation and DWR and the November 2007 California Water Policy
Conference sponsored by Public Officials for Water and
Environmental Reform.
This issue of Western Water examines the extent to
which California faces a disaster equal to or greater than the
New Orleans floods and the steps being taken to recognize and
address the shortcomings of the flood control system in the
Central Valley and the Delta, which is of critical importance
because of its role in providing water to 22 million people.
Complicating matters are the state’s skyrocketing pace of growth
coupled with an inherently difficult process of obtaining secure,
long-term funds for levee repairs and continued maintenance.
This issue of Western Water analyzes northern California’s
extensive flood control system – it’ history, current concerns,
the Paterno decision and how experts are re-thinking the concept
of flood management.
