Topic: Levees



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.

Aquafornia news Los Angeles Times

California water projects could be tapped to pay for Trump’s border wall

Officials have given President Trump a plan to divert funds designated for Army Corps of Engineers projects in California and Puerto Rico to help pay for a wall along the southern border, a leading member of Congress said Thursday. … The projects include raising the height of Folsom Dam on the American River in Northern California, protecting Lake Isabella in Kern County from leaking as a result of earthquakes, enlarging the Tule River and Lake Success in the Central Valley and building shoreline protections in South San Francisco.

Aquafornia news Chico News & Review

State breaks, shifts levees to restore natural floodplains

At the confluence of the San Joaquin and Tuolumne rivers, a few miles west of Modesto, work crews removed or broke several miles of levee last spring and replanted the land with tens of thousands of native sapling trees and shrubs. It’s part of a growing emphasis on reconnecting floodplains to rivers so they can absorb floodwaters. This shift in methodology marks a U-turn from past reliance on levees to protect cities and towns.

Aquafornia news Bloomberg

Trump administration sits on billions in storm protection money

 In February, following a string of severe natural disasters in 2017, Congress provided a record $16 billion for disaster mitigation — building better defenses against hurricanes, floods and other catastrophes. Eleven months later, the Trump administration has yet to issue rules telling states how to apply for the money.

Aquafornia news CALmatters

Wednesday’s Top of the Scroll: Let it flow: In about-face, state breaks and shifts levees to restore natural floodplains

At the confluence of the San Joaquin and Tuolumne rivers, a winter of heavy rains could inundate about 1,200 acres of riverside woodland for the first time in 60 years. That’s by design: Here, a few miles west of Modesto, work crews removed or broke several miles of levee last spring and replanted the land with tens of thousands of native sapling trees and shrubs.

Aquafornia news

America’s second biggest levee system is keeping Sacramento dry — for now

Not long after the Gold Rush of 1849, California became a state and made its capital in Sacramento. It seemed a logical choice. The city was served by the two of the state’s biggest rivers, the Sacramento and American, at a time when a lot of goods and people moved via river traffic. It was somewhat centrally located. But, there was the occasional flood. Every spring, the snowcap in the Sierras melts, leaving a significant amount of water in the Central Valley, where Sacramento sits. The city engineered a levee system to control the seasonal flooding.

Aquafornia news Appeal-Democrat

Levee project estimated to cost $77 million

The U.S. Army Corps of Engineers will begin advertising for bids on a Feather River West Levee construction project estimated at $77 million. According to a staff report published earlier this year by the Central Valley Flood Protection Board, the project would make improvements to approximately 4.9 miles of levee.

Aquafornia news KQED News

These invasive 20-pound rodents could wreak havoc on California agriculture

Merced County sweet potato farmer Stan Silva hadn’t even heard the word “nutria” until a few months ago. He’s still never seen one, but he’s worried about the damage these 20-pound rodents with big orange buck teeth could do in California if they’re not eradicated. “It would be devastating,” Silva says. “They can basically ruin the ag industry here — they get in your fields, burrow into your canal ways, your waterways.” They can also tear up crops and levees, making the state’s water infrastructure more vulnerable.

Aquafornia news Appeal-Democrat

Preventing the next big flood

Marysville is one step closer to being the most protected city in the Central Valley from flooding, experts say, with the recent completion of a stretch of slurry wall in part of the ring levee project.  Last week, crews completed a portion of the Marysville Ring Levee project – Phase 2A North – located between the 10th Street and Fifth Street bridges.

Aquafornia news Stockton Record

California Conservation Corps members work on flood control skills on Delta levee

Two-hundred members of the California Conservation Corps from as far away as San Diego and Fortuna descended on a Delta levee bordering southwest Stockton’s Van Buskirk Park on Tuesday to practice their flood control skills. … CCC Communications Director Dana Howard, also on hand to observe Tuesday’s training exercise, took the opportunity to announce the recent opening of the Corps’ first newly constructed facility in Northern California in decades.

Aquafornia news Appeal-Democrat

Levee District 1 to celebrate 150 years

When it comes to flood fighting, the men and women who’ve worked for Levee District 1 have seen it all – from tragedy to triumph. Those still around have plenty of stories to tell. The public will have an opportunity to hear some of those stories during the district’s 150th anniversary celebration on Oct. 26. The district is responsible for operations and maintenance of 16.15 miles of levee spanning from Pease Road to Marcuse Road in Sutter County.

Western Water Gary Pitzer California Water Map Gary Pitzer

When Water Worries Often Pit Farms vs. Fish, a Sacramento Valley Farm Is Trying To Address The Needs Of Both
WESTERN WATER SPOTLIGHT: River Garden Farms is piloting projects that could add habitat and food to aid Sacramento River salmon

Roger Cornwell, general manager of River Garden Farms, with an example of a refuge like the ones that were lowered into the Sacramento River at Redding to shelter juvenile salmon.  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.

Aquafornia news ProPublica / Reveal from The Center for Investigative Reporting

Flood thy neighbor: Who stays dry and who decides?

When rivers flood now in the United States, the first towns to get hit are the unprotected ones right by the river. The last to go, if they flood at all, are the privileged few behind strong levees. While levees mostly are associated with large, low-lying cities such as New Orleans, a majority of the nation’s Corps-managed levees protect much smaller communities, rural farm towns and suburbs such as Valley Park [Missouri].

Aquafornia news Chico Enterprise-Record

Earth being moved to Hamilton City levee

A steady stream of trucks has started carrying dirt to what will be a new levee to protect Hamilton City. The trucks started rolling Monday, carrying dirt from a pile at the north end of Canal Road that is left from the excavation of the Glenn-Colusa Canal.

Aquafornia news The Sacramento Bee

Could West Sacramento be forced to pay up if river floods? Mayor and residents disagree.

The West Sacramento City Council voted 4-1 last month to begin a process that would convert an independent district in charge of levee management into a subsidiary of West Sacramento, and allow the council to replace the district’s board of directors with appointees or the council members themselves. Reclamation District 900 has operated independently since 1911, managing 13.6 miles of levees that provide flood protection along the Sacramento River.

Aquafornia news Chico Enterprise-Record

J Levee replacement gets $8 million more from feds

The Army Corps of Engineers announced Monday that the additional money would be available to the Hamilton City Flood Damage Reduction and Ecosystem Restoration Project in the current fiscal year. … It is the first in the nation being constructed under the Corps’ guidelines to develop projects that include both flood risk reduction and ecosystem restoration.


Bay-Delta Tour 2018

Sacramento-San Joaquin DeltaWe traveled deep into California’s water hub and traverse the Sacramento-San Joaquin Delta, a 720,000-acre network of islands and canals that supports the state’s water system and is California’s most crucial water and ecological resource. The tour made its way to San Francisco Bay, and included a ferry ride.

Aquafornia news Stockton Record

Invasive nutria’s discovery in Delta sets off alarm bells

Sometime after Tim Pelican arrived at work Monday, a farmer stopped by to deliver a package to San Joaquin County’s agricultural commissioner. The farmer’s package contained a dead nutria, a 2½–foot-long, 20-pound beast that looks like a beaver but is smaller and has a round, ratlike tail and white whiskers.

Western Water Layperson's Guide to the Delta

ON THE ROAD: Park Near Historic Levee Rupture Offers Glimpse of Old Sacramento-San Joaquin Delta
Big Break Regional Shoreline will be a stop on Bay-Delta Tour May 16-18

Visitors explore a large, three-dimensional map of the Sacramento-San Joaquin Delta at Big Break Regional Shoreline in Oakley. 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.

Aquafornia news Appeal-Democrat

Public input sought in Marysville levee project

Modifications were made to construction plans for an upcoming phase of the Marysville Ring Levee project. … The Marysville Levee Commission, the Central Valley Flood Protection Board and the U.S. Army Corps of Engineers are proposing changes to their original plans for an area located along the existing levee to the southwest of Marysville, between the Fifth Street Bridge and E Street Bridge. 

Aquafornia news The Sacramento Bee

Sacramento moves to buy levee easements for Sacramento River trail

The view from Don Murphy’s expansive backyard is breathtaking. The Sacramento River rolls gently past as birds float in the mid-winter fog. It is nearly silent, except for the infrequent car driving along a delta road across the river. … Now a fight is heating up over who should have access to that serenity.

Aquafornia news San Jose Mercury News

BREAKING NEWS: Brown administration working to scale down $17 billion Delta tunnels project

Faced with a shortage of money and political support after seven years of work, Gov. Jerry Brown’s administration is working on a plan to scale back one of his key legacy projects, a $17 billion proposal to build two massive tunnels under the Sacramento-San Joaquin River Delta to make it easier to move water from Northern California to the south.

Aquafornia news Appeal-Democrat

Close look at $28.5 million levee repairs in Sacramento Valley

The Sutter Butte Flood Control Agency got to work on emergency levee repairs following last winter’s high waters and the Oroville Dam evacuation. Seepage, boils, sink holes and water erosion were signs of severe distress. The $28.5 million project, mostly funded by the state, is geared up to complete by Christmas.

Tour Nick Gray

Bay-Delta Tour 2019
Field Trip - June 5-7

This tour traveled deep into California’s water hub and traversed the Sacramento-San Joaquin Delta, a 720,000-acre network of islands and canals that supports the state’s water system and is California’s most crucial water and ecological resource. The tour made its way to San Francisco Bay and included a ferry ride.

Aquafornia news Appeal-Democrat

Officials express confidence when sizing up area levees

Considering the events of this past winter and the problems they posed to Yuba-Sutter levees, officials are confident the improvements made over the past several months will withstand the upcoming flood season.

Aquafornia news Chico Enterprise-Record

Flood experts say California levees need much more money

California needs to spend another $100 million a year to keep the state’s levee system sound, according to state flood control experts. At a press conference marking flood preparedness week Monday at a levee repair site near Sacramento, Bill Edgar, president of the Central Valley Flood Protection Board said the levees will need a $17 billion to $21 billion investment over the next 30 years to protect the seven million Californians at flood risk.

Aquafornia news Capital Public Radio

Repairs begin for levees that suffered critical damage this winter

The California Department of Water Resources and the Army Corps of Engineers are repairing 30 sites that suffered “critical” damage this winter and are preparing to fix another 10.

Aquafornia news Water Deeply

Tuesday’s Top of the Scroll: Landmark California plan puts floodplains back in business

Something monumental happened on August 25 in California water management that received almost no media attention: It became official policy to reconnect the state’s major rivers with their floodplains. The action by the Central Valley Flood Protection Board, an obscure panel appointed by the governor, clears the way for the state to embrace projects that allow floods to recharge groundwater. … The timing coincides with two other major state programs.

Aquafornia news Stockton Record

Monday’s Top of the Scroll: California’s drift away from levees continues

After more than a century of building levees higher to hold back its rivers, California took another step Friday toward a flood-control policy that aims to give raging rivers more room to spread out instead.

Aquafornia news Appeal-Democrat

Feds OK Yuba City levee work

The heavy work is now underway on emergency repairs to the nearly 3 miles of levee protecting the heart of Yuba City. The Sutter Butte Flood Control Agency received federal approval Tuesday night to proceed wth the work.

Aquafornia news Chico Enterprise-Record

Work to fix damaged levee begins in Yuba City

Work crews with heavy machinery started emergency repairs Thursday to a levee that protects Yuba City, and was damaged by high flows during the Oroville Dam spillway emergency. The $28.5 million project will create a seepage cutoff wall and rebuild 2.9-miles of levee along the west side of the Feather River that protect 80,000 people.

Aquafornia news Stockton Record

Delta survives latest ‘test’

The engineers who scrambled to prevent Delta farms from flooding this year have long insisted that the levees surrounding those low-lying islands are not as fragile as they’re sometimes portrayed to be.

Aquafornia news Appeal-Democrat

Work underway on Marysville Ring Levee’s ‘weakest link’

Construction work on a portion of the Marysville Ring Levee – deemed by a federal agency as the “weakest link” in the city’s levees – began earlier this month along Highway 70. … John Nicoletti, a levee commissioner for Marysville, said the U.S. Army Corps of Engineers has assessed the ring levee and found that Binney Junction is the city’s most vulnerable point.

Aquafornia news The Fresno Bee

As Kings River recedes, evacuees assess flood damage amid work to close levee breaches

The flooding is the result of more than a week of high temperatures that have rapidly melted mountain snow, filling Pine Flat Reservoir and prompting the Army Corps of Engineers to send a surge of water into the Kings River to make room for more runoff behind the dam. The river surge tested levees along the Kings in a way some residents has never expected.

Aquafornia news The Fresno Bee

To protect Pine Flat Dam from being overtopped, more water sent down Kings River

Water releases from Pine Flat Dam were ratcheted up Thursday as federal officials worked to prevent the reservoir from overtopping the dam. … Crews from Kings County and the Kings River Conservation District responded to a small breach in a levee on the south fork of the Kings River between Grangville and Highway 198.

Aquafornia news Appeal-Democrat

Levee managers talk issues with DWR

The Department of Water Resources invited downstream levee maintaining agencies and county emergency operators to a meeting in Oroville on Monday to discuss ways of improving operations and planning for future emergency situations.

Aquafornia news Capital Public Radio

West Sacramento breaks ground on largest levee project (with audio)

The Southport Levee Improvement Project along the Sacramento River is one of four designed to bring West Sacramento up to the state-mandated 200-year level of flood protection.

Aquafornia news Stockton Record

‘Sobering’: How sea level rise could swamp Stockton

A worst-case sea level rise increase of 10 feet to 12 feet by the year 2100 would utterly transform Stockton as we know it today. Climate Central, a New Jersey-based climate science nonprofit, recently published maps depicting what this unlikely, yet still “plausible,” scenario might look like. 

Aquafornia news NBC Bay Area

Break in California levee system could contaminate Bay Area drinking water supply (with video)

A five year survey released by the California Department of Water Resources reveals half of the levees that guard California cities from a major flood don’t meet modern standards, and if a levee were to break in the wrong place, it could cut off the drinking water supply to the Bay Area for months or even years.

Aquafornia news Los Angeles Times

Thursday’s Top of the Scroll: Rains end, but flooding dangers loom if massive Sierra snowpack melts too quickly

The rain has largely stopped after one of the wettest winters in California. But as spring temperatures begin to climb and snow in the Sierra Nevada melts, the threat of flooding has communities across the Central Valley on edge. … The concerns are magnified in some areas by subsidence, a festering problem exacerbated by five years of drought in the Central Valley.

Aquafornia news Chico Enterprise-Record

After the storms: A fresh look at the work of setback levees

Rivers were swift and wide this winter with heavy storms adding up to the wettest winter in 122 years. People who have lived in the Sacramento Valley for decades remember flooding from their youth, when towns were evacuated, homes were lost and topsoil washed away.

Aquafornia news San Jose Mercury News

Delta levee and ratepayer protection bills pass first hurdle

Two bills that would protect Delta levees and ratepayers were passed in the Assembly Water, Parks and Wildlife Committee on Tuesday. Assemblyman Jim Frazier’s two bills — AB 732 and AB 791 — passed through their first hurdle. 

Aquafornia news Stockton Record

Appeals Court: School district on hook for flood projects

The Manteca Unified School District must pay to fund local levee improvements, just like any other property owner in the area, an appeals court has found. One attorney says the decision is good news for the small levee districts across the Delta charged with protecting farms and cities from floods.

Aquafornia news KQED Public Media for Northern California

Nature provides its own flood control. Time to use it? (with audio)

After millions of dollars of flood damage and mass evacuations this year, California is grappling with how to update its aging flood infrastructure. That has some calling for a new approach to flood control – one that mimics nature instead of trying to contain it.

Aquafornia news Western Water on Tap

Crisis at Oroville may be basis for renewed operations criteria – Coming snowmelt poses a problem in San Joaquin Valley

In the wake of a near disaster at Oroville Dam caused by heavy runoff and a damaged spillway, the former chief of flood operations for the U.S. Army Corps of Engineers said last week it may be time to reconsider how the reservoir is operated to avert such dilemmas.

Aquafornia news San Francisco Chronicle

Monday’s Top of the Scroll: Riverbanks collapse after Oroville Dam spillway shut off

When state water officials scaled back their mass dumping of water from the damaged Oroville Dam this week, they knew the riverbed below would dry up enough to allow the removal of vast piles of debris from the fractured main spillway.

Aquafornia news New York Times

In California, a move to ease the pressures on aging dams

Until a few weeks ago, the McCormack-Williamson Tract in the California Delta was an island of low-lying farmland, more than two square miles protected from the surrounding rivers and sloughs by earthen levees.

Aquafornia news Stockton Record

Levee patrols: First line of defense against floodwaters

Roberts Island hasn’t flooded severely since 1884. Yet here they are, fourth-generation farmer Mike Robinson and his son, Michael, spending their Friday night inspecting every inch of the 15-mile levee from a truck crawling along at 5 mph.

Aquafornia news Associated Press

Rural California levees besieged by pounding wet winter

Billions of dollars in flood projects have eased fears of levee breaks near California’s capital and some other cities, but state and federal workers are joining farmers with tractors in round-the-clock battles this week to stave off any chain-reaction failure of rural levees protecting farms and farm towns.

Aquafornia news Capital Public Radio

Levee managers: Need five miles of repairs to Feather River

A state management and local reclamation district in Yuba City say repairs are required to Feather River levees as they connect to the Highway 99 bridge.

Aquafornia news Stockton Record

Big test still to come as San Joaquin River keeps rising

Splashes of sunshine and some modest bits of good news cast San Joaquin County’s flooding problems in a slightly more optimistic light on Tuesday.

Aquafornia news Los Angeles Times

Levee system battered by record rainfall from ‘atmospheric river’

As the latest major storm to saturate California got in its final licks Tuesday, the state deployed all the weapons in its flood-control arsenal — including farm tractors, pontoon boats and controlled releases from mountain reservoirs.

Aquafornia news Stockton Record

San Joaquin River levee break forces 500 out; Don Pedro spillway opens

A 20-foot breach in a San Joaquin River levee that forced an evacuation order for a large swath of rural farmland was plugged by emergency crews late Monday, a levee engineer confirmed.

Aquafornia news Associated Press

Tuesday’s Top of the Scroll: Creeks, rivers top banks after latest California storm

Creeks and rivers topped their banks, hundreds of homes were evacuated and several thousand people found themselves trapped in a rural hamlet as Northern California emerged Tuesday from yet another winter storm.

Aquafornia news Stockton Record

Tyler levee holds; San Joaquin River rises

While crews kept up emergency levee repairs on Tyler Island on Tuesday, the San Joaquin River woke up and stretched her arms, finally reaching flood stage after languishing for several years as a weed-choked, drought-diminished trickle.

Aquafornia news Sacramento Bee

Emergency work starts on levee repair downstream from Oroville Dam

Emergency work on a levee at the confluence of the Feather and Sacramento rivers started Monday, with officials hoping to prevent damage.

Aquafornia news Sacramento Bee

After years of drought, Sacramento confronts an old foe: flood risk

In the years before California’s drought, it wasn’t unusual for Sacramentans to spend winters worrying about floods. After more than five years with little rain, the past two weeks delivered a bracing reminder that the region remains vulnerable to rising waters and overtopped levees.

Aquafornia news Sacramento Bee

Levee breaches being repaired on swollen Mokelumne River near Lodi

A levee break reported Monday afternoon on the north bank of the Mokelumne River levee near Lodi is being filled while crews are sandbagging a second break on the river’s south bank, the San Joaquin County Office of Emergency Services reports.

Aquafornia news Sacramento Bee

Lost Slough levee breaks, but gets patched up for now

A levee partially broke late Thursday in the Delta region of south Sacramento County, but officials said the problem was mostly patched up by nightfall.

Aquafornia news Stockton Record

Storm surge: Levees under patrol as water problems in Delta grow

Flooding concerns intensified in the the Delta on Wednesday as huge volumes of water surged down creeks and streams into the low-lying river estuary.

Aquafornia news The Desert Sun

A new plan to protect homes from flash floods in the California desert

In the desert north of Interstate 10, channels carved into the sand by rushing water attest to the powerful floods than can suddenly sweep down from the Indio Hills during storms.

Aquafornia news San Jose Mercury News

Bay Commission fines island owner $772,00 for altering levees

A small-island owner already threatened with a $4.6 million fine by one state agency has been fined $772,000 by a state commission for changing levees and waterways to create a private kite surfing club for business executives.

Aquafornia news Santa Cruz Sentinel

Leaders vent frustration for long-delayed Pajaro River levee project

Outgoing Rep. Sam Farr addressed a 23-member panel bringing together local representatives from four counties, the U.S. Army Corps of Engineers, municipal flood control staff members and the two candidates running to replace him on Nov. 8, Casey Lucius and Jimmy Panetta. 

Aquafornia news Water Deeply

Wallace Weir: A new beginning in California’s river management

A project to rebuild the Wallace Weir, a century-old levee northwest of Sacramento, could help both farmers and salmon. Bringing together a coalition of unlikely allies, it promises a more sophisticated approach to water management.

Aquafornia news Chico Enterprise-Record

$8.6 million contract will restore 770 acres as part of J Levee project

Since 1998 there have been slow but steady changes along the Sacramento River. … The next local project for River Partners involves the first phase of the J Levee project just south of Hamilton City.

Aquafornia news Yuba-Sutter Appeal-Democrat

Levee work to create 200-year flood protection

Three Rivers Levee Improvement Authority is in the middle of a $7.2 million construction project to bring the Western Pacific Interceptor Canal levee to the 200-year flood protection level.

Aquafornia news Capital Public Radio

Natomas levee project ready to begin (with audio)

The U.S. Army Corps of Engineers has the go-ahead to begin a nine-part levee-improvement project for the Natomas Basin in Sacramento. … The levees are part of a system that diverts watershed runoff into the American River.

Aquafornia news Marin Independent Journal

Marin planners earn plaudits for game to promote flood risk awareness

Staffers with the county’s public works department and Community Development Agency were recently recognized for their creative approach to engaging residents in a discussion on sea-level rise, earning a public outreach award from the state chapter of the American Planning Association for their creation — the board game the “Game of Floods.”

Aquafornia news UC Davis Center for Watershed Sciences

Blog: St. Helena, California — Dealing with a field-of-dreams levee, residual risk, and a flood of controversy

A new $37.2[1] million levee in the town of St. Helena, on the floodplain of the Napa River, has a colorful history and has been stirring local acrimony since its inception. … There are clearly positive elements of the St. Helena levee project, but also numerous missteps that have mired the project in dissent and even, opponents argue, threaten to bankrupt the town. With important planning and zoning decisions now pending, the St. Helena levee is a case study for other communities to examine before they consider all of the options for flood-risk management.

Aquafornia news The Sacramento Bee

Levee ‘armoring’ along the American River Parkway draws concerns

Years of rumbling dump trucks and backhoes placing 2.75 million tons of rock “armor” along nearly a dozen miles of riverbank is an unpleasant thought for many who bike, jog, fish, bird-watch, golf, boat and swim along the lower American River Parkway.

Aquafornia news Capital Public Radio

Scientists say levees can increase flood risk and long-term damage (with audio)

New research shows people living behind levees on flood plains may have a greater risk of flood damage than if the levees had not been built. The research examined the long-term flood risk, probabilities of levee failures and resulting economic losses along the Mississippi River, but the science applies to levee systems worldwide.

Aquafornia news McClatchy Washington, D.C., Bureau

Wednesday’s Top of the Scroll: Obama’s budget plan serves California some familiar fare

The $4.1 trillion spending plan offers familiar funding levels for border control, Central Valley levees, Sacramento-San Joaquin Delta restoration and military base improvements.

Aquafornia news Capital Public Radio

Sacramento levee repairs are in president’s proposed budget

Thirty-two-million dollars for Sacramento levees is in President Obama’s budget request for the next fiscal year and in the Army Corps of Engineers’  work plan for this year.

Aquafornia news San Jose Mercury News

First-of-its-kind $12 parcel tax proposed for all nine Bay Area counties

In a milestone for San Francisco Bay restoration that also raises questions about who should pay to protect property from rising seas caused by climate change, a low-profile government agency is expected to place a $12 annual parcel tax on the June ballot in all nine Bay Area counties.

Aquafornia news Los Angeles Daily News

Los Angeles River gets $3.6 million in emergency funding for flood prevention

Officials of the city, county and Army Corps of Engineers announced Friday that there will be $3.6 million in emergency federal funding for flood prevention measures along the Los Angeles River following the first El Niño-related storms this week.

Aquafornia news Associated Press

Los Angeles River banks to be raised for El Niño

The U.S. Army Corps of Engineers will begin work next week to temporarily raise the banks along nearly three miles of the Los Angeles River to improve flood protection during El Niño storms, officials announced Friday, just days after the watercourse roared to life during heavy rains.

Aquafornia news San Francisco Chronicle

Disaster officials brace for havoc from historic El Niño

Federal disaster officials warned Tuesday that El Niño-fueled storms in California could inflict millions of dollars in damage this winter — from mud-soaked homes to broken levees to downed electrical lines — and said they’re taking steps to minimize the toll.

Aquafornia news Appeal-Democrat

$8.5 million funds more levee work in Sutter County

The funds, from the Department of Water Resources’ Flood Systems Repair Program, will allow the Sutter Butte Flood Control Agency to improve a section of levee near Laurel Avenue south of Star Bend, further expanding a multi-year project to raise the flood protection in urban and rural areas to 200- and 100-year levels, respectively.

Aquafornia news Stockton Record

Panel scrutinizes levee plan

A state plan to prioritize levee upgrades in the Delta is drawing criticism from independent scientists.

Aquafornia news Los Angeles Times

Q&A: Calif. is falling apart; here’s why

Steven P. Erie, a political science professor at UC San Diego, says that if California infrastructure were a student in his class, he’d give it an “F.” 

Aquafornia news Los Angeles Times

#drylandsCA – A wildfire in front of us, drylands all around us

It’s one thing to read about crumbling water infrastructure, another to bump down a road, beneath water level, after freaky July rains in the middle (end? beginning?) of an epic drought.

Aquafornia news Chico Enterprise-Record

Crews work to strengthen Feather River levees

Work is underway in Butte County to shore up Feather River levees that date back to the pioneer era.

Aquafornia news Capital Public Radio

Feather River levee repair work resumes (with audio)

After months of delay, work on a Feather River levee repair project north of Yuba City has resumed.

Aquafornia news Stockton Record

Flood plan comes at a cost

The plan by the U.S. Army Corps of Engineers calls for improving 23 miles of levees, from Mosher Slough in the north to French Camp Slough in the south. This is intended to protect much of Stockton from catastrophic floods worsened by climate change.

Aquafornia news Marin Independent Journal

SMART and state in property disagreement after levee break

The Sonoma-Marin Area Rail Transit agency and the state Department of Fish and Wildlife are involved in a dispute over a failed levee that is flooding sensitive wetlands near the Mira Monte Marina.

Aquafornia news Appeal-Democrat

Yuba City officials lobby for levee funding in D.C.

Local officials took steps to acquire federal funding for the Feather River West Levee project during a lobbying trip last week to Washington, D.C.

Aquafornia news Stockton Record

Controversial study to prioritize funding for Delta levees

Flooding may seem a distant threat at the moment, but that’s the subject of a meeting Monday as a state agency pushes forward with a study of which Delta levees should be first in line for future funding.

Aquafornia news Capital Public Radio

Indian burial sites put flood control agency between conflicting state and federal orders

The Sutter Butte Flood Control Agency has been given another week to decide what to do with hundreds of Native American remains and artifacts dug up by construction crews last year.

Aquafornia news The Sacramento Bee

New campaign of levee work planned along Sacramento River

A massive new round of levee improvements is ahead for Sacramento over the next decade, this time focusing primarily on the Sacramento River south of downtown. … The U.S. Army Corps of Engineers and Sacramento Area Flood Control Agency unveiled the package of projects recently and are planning a series of public meetings in April.

Aquafornia news Public Policy Institute of California (PPIC)

Blog: Caring about Delta levees during a drought

When the sun is shining and our rivers are low, we tend to forget about levees. However, you can’t ignore the 1,100 miles of levees in the Sacramento-San Joaquin Delta. … This video is a simulation of what would happen if a severe earthquake hit the western Delta, causing widespread failure of levees. 

Aquafornia news Appeal-Democrat

Corps a no-show at meeting to settle dispute over Feather River levee project artifacts

The parties in a dispute over the fate of cultural materials discovered in Sutter County have expressed a willingness to solve the issue, but the path toward an agreement remains uncertain and time is short.

Aquafornia news Appeal-Democrat

Status of Native Californians remains have levee work in limbo

The U.S. Army Corps of Engineers and the [United Auburn Indian Community] UAIC disagree about the return of the items uncovered last summer during the Feather River West Levee project, even as both sides meet to resolve the issue.

Aquafornia news Santa Cruz Sentinel

Promise of protection surfaces on 20th anniversary of Pajaro flood

The debate over flood control raged for years before the Pajaro River gushed through a break in the levee at Murphy Crossing in the early morning hours of March 11, 1995.

Aquafornia news Stockton Record

Feds propose levee plan to protect Stockton

The federal government has released a long-awaited $800 million plan to protect Stockton from future floods, but the plan is not as ambitious as local officials would have liked.

Aquafornia news Chico Enterprise-Record

Sacramento River flood project has hope for more funding

Residents of Hamilton City have not left fear of flooding behind them. Yet, hopeful news was found in President Barack Obama’s federal budget.

Aquafornia news Appeal-Democrat

Levee project gets $44 million

California has committed another $44 million to the Feather River West Levee project — not the entirety of the funding the project needs but enough for construction to continue unhindered in 2015.

Aquafornia news Sacramento News & Review

Editorial: Natomas’ future

More than a decade ago, an SN&R writer interviewed Sacramento native Joan Didion about her then-new book, Where I Was From. Part of the conversation involved the development of Natomas, which Didion remembered fondly. “It was always so beautiful,” she said, “even when it was underwater.”

Aquafornia news Maven's Notebook

Blog: Delta Stewardship Council accepts Delta Levee Investment Issue Paper

The Delta Levee Investment Strategy project is an 18-month multi-agency effort led by the Delta Stewardship Council to update priorities for state investments in Delta levees.

Aquafornia news The Sacramento Bee

Editorial: Build smarter in Natomas basin

The return of major construction in Natomas is finally on the horizon, thanks to the shoring up of levees protecting the basin from floods.

Aquafornia news The Sacramento Bee

Feds poised to lift building moratorium in Natomas

Housing and commercial development could resume in Sacramento’s Natomas region as soon as June, more than six years after flood risks prompted the federal government to shut down construction.

Aquafornia news Marin Independent Journal

Gov. Brown declares state of emergency in Marin, three other counties

Gov. Jerry Brown on Monday declared a state of emergency for Marin, Mendocino, San Mateo and Ventura counties after a series of severe winter storms damaged roads and highways throughout the state.

Aquafornia news San Jose Mercury News

San Jose: Overwhelmed pumps led to Alviso flooding; residents say it’s a ‘wake-up call’

When the last big December storm was at its peak, overflowing storm drains and flash-flooding streets gave San Jose’s bayside community of Alviso an all-too-real reminder that if not for the levees and pumps, they’d be underwater.

Aquafornia news UC Davis Center for Watershed Sciences California WaterBlog

Blog: Reconciling fish and fowl with floods and farming

Floodplains are extremely productive habitats for native fish and birds, yet floodplains in California are cut off from rivers by levees and development. … Recognizing these constraints, reconciliation ecology encourages land and water managers to re-engineer human-dominated landscapes to be more hospitable for native species without significantly diminishing human uses. California’s Yolo Bypass, an engineered floodplain on the Sacramento River, is an excellent case study of this new approach to native species conservation.

Aquafornia news San Jose Mercury News

Gov. Jerry Brown touts water bond measure at Stanford summit

Gov. Jerry Brown pitched his plan Monday for a water bond and a rainy-day fund at a Stanford University water conference. … He called his water plan a “four-term effort.”

Aquafornia news Appeal-Democrat

Beetle remains an obstacle to fixing levees

Small half-inch to 1-inch beetles — or at least the bushes where they live — will continue to be a costly obstacle for those who maintain or fix Yuba-Sutter levees.


Delta Warning

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.

Maps & Posters

Delta Sustainability Map
Published 2006

This beautifully illustrated 24×36 inch poster, suitable for framing and display in any office or classroom, focuses on the theme of Delta sustainability.

The text, photos and graphics explain issues related to land subsidence, levees and flooding, urbanization and fish and wildlife protection. An inset map illustrates the tidal action that increases the salinity of the Delta’s waterways. Development of the map was funded by a grant from the California Bay-Delta Authority.


Layperson’s Guide to the State Water Project
Updated 2013

The 24-page Layperson’s Guide to the State Water Project provides an overview of the California-funded and constructed State Water Project.


Layperson’s Guide to Flood Management
Updated 2009

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. 


Layperson’s Guide to the Delta
Updated 2020

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.

Maps & Posters

The Delta Map
Released Oct. 2001

The Delta, convergence of California’s two great water delivery systems and major rivers is depicted in this 36×24 inch map. The map graphically depicts the importance of the Delta — what it is, where it is and how water flows through the area. The 2001 map now includes Delta waterways, pumping facilities and canals, Los Vaqueros Reservoir, and many proposed projects and studies in CALFED’s 2000 Record of Decision. 

Maps & Posters

California Water Map
Updated December 2016

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.

Aquapedia background

Floodplains in California

With the dual threats of obsolete levees and anticipated rising sea levels, floodplains—low areas adjacent to 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.

Aquapedia background

Sacramento-San Joaquin Delta Levees

Sacramento-San Joaquin Delta Levees

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.

Aquapedia background



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.

Western Water Magazine

Meeting the Co-equal Goals? The Bay Delta Conservation Plan
May/June 2013

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.

Western Water Magazine

How Much Water Does the Delta Need?
July/August 2012

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.

Western Water Magazine

Levees and Flood Protection: A Shared Responsibility
May/June 2012

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.

Western Water Excerpt Gary PitzerRita Schmidt Sudman

Levees and Flood Protections: A Shared Responsibility
May/June 2012

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.

Western Water Magazine

Finding a Vision for the Delta
March/April 2008

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.

Western Water Magazine

A Significant Challenge: Adapting Water Management to Climate Change
January/February 2008

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.

Western Water Magazine

It Can Happen Here: Assessing California’s Flood Risk
November/December 2005

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.

Western Water Magazine

Flood Management 2004: A System in Peril
September/October 2004

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.