CA - DWR
@CA_DWR
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Managing the water resources for California to benefit the State's people & to protect, restore, & enhance the natural & human environments.
Headquarters - Sacramento, CA
Joined January 2012
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We are proud to work for DWR every day! Through a variety of fulfilling
#careers
, we can sustainably manage the water resources of
#California
to benefit the state’s people and protect, restore, and enhance natural and human environments. Join our team at
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EMERGENCY EVACUATION: Auxiliary spillway at Oroville Dam predicted to fail within the next hour. Oroville residents evacuate northward.
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2K
DWR is maintaining releases from
#LakeOroville
to the Feather River at 35,000 cfs. These releases are being made in coordination with the U.S. Army Corps of Engineers & downstream water operators for
#flood
control protection. DWR continues to closely monitor lake inflow levels
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Ready. Set. Spill! Check out this spectacular view from today of water rushing from Oroville Dam’s main spillway. Not only was this planned release impressive to witness; it helps provide flood protection to downstream communities.
#California
#LakeOroville
#Flood
#Oroville
#Dam
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DWR plans to use helicopters to drop rocks to fill in the gouge in the Oroville Auxilliary Spillway to stabilize.
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Since Dec 1, 2022, Lake Oroville has seen over a 100ft rise in elevation thanks to a series of atmospheric rivers that delivered significant rain and snow to the Feather River watershed. However, due to historic
#drought
, most major reservoirs, including Lake Oroville, remain low
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EVACUATION ORDER. Use of the auxiliary spillway has lead to severe erosion that could lead to a failure of the structure.
@CALFIRE_ButteCo
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Lake Oroville is at 895 feet elevation and storage is approximately 3.47 million acre-feet (MAF), which is 98 percent of its total capacity and 123 percent of the historical average.
Read more at the
#LakeOroville
Community Update at
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This evening, 4 DWR temporary emergency power generators were activated to provide electricity to our statewide energy grid. This is the first time they’re being used as part of an effort to help keep the lights on & keep Californians safe and healthy during this
#heatwave
. (1/2)
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Since Dec. 1 Lake Oroville’s storage has increased approximately 178 feet and gained 1.66 million acre-feet of water. DWR continues to closely monitor lake levels, weather forecasts and mountain snow levels. With continued wet weather...
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Fremont Weir is flowing and forecasted to flow for the next five days, as it is designed to do. Weirs are designed to help manage
#flood
. These weirs are passive systems & move water when it reaches a specific height into flood bypass to relieve pressure on mainstem levees.
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Efforts are underway to make repairs to both the primary and auxiliary spillways at Lake Oroville.
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Incredible photos of
#OrovilleSpillway
as flows reduced to 0 on 2/27. Crews working aggressively to remove debris & sediment below spillway.
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Lake Oroville is at 899 feet elevation and storage is approximately 3.52 million acre-feet (MAF), which is 100 percent of its total capacity and 127 percent of the historical average.
Read more at the
#LakeOroville
Community Update at
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DWR is maintaining releases from Lake Oroville to the Feather River at 35,000 cfs today. Releases are made in coordination with the U.S. Army Corps of Engineers and downstream water operators for flood control protection. DWR continues to closely monitor lake inflow levels...
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Lake Oroville is at 899 feet elevation and storage is approximately 3.52 million acre-feet (MAF), which is 100 percent of its total capacity and 128 percent of the historical average.
Read more at the
#LakeOroville
Community Update at
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Flows over the auxiliary spillway have ceased. 100,000 cfs continue down the main spillway.
@ButteSheriff
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We are happy California has a break in the rain. Here's🎥 from early in week showing Fremont Weir, Cache Creek Outlet Weir, & the Yolo Bypass doing exactly what they were designed to do & help manage
#flood
. Weirs are passive systems & move water when it reaches a specific height
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Lake Oroville is at 899 feet elevation and storage is approximately 3.53 million acre-feet, which is 100 percent of its total capacity and 127 percent of the historical average.
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As weather patterns have become more variable and extreme, resulting in more frequent and consequential droughts and high flow events, replenishment of depleted
#groundwater
basins is an essential part of California’s long-term water resilience and drought mitigation efforts.
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Lake Oroville releases to the Feather River remain at 15,000 cfs today, but will increase to 20,000 cfs by noon Wed. DWR continues to monitor lake levels, weather forecasts, & mountain snow levels to optimize operations for
#flood
control, water storage & environmental protection
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DWR today conducted the first Phillips Station snow survey of the season. The survey recorded 78.5 inches of snow depth and snow water equivalent of 20 inches, which is 202% of average for this date at Phillips Station. The statewide average is 160% of average.
#SnowSurvey2022
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DWR continues to release water from
#OrovilleDam
to the Feather River at a total of 15,000 cfs. Releases from the main spillway remain at 8,000 cfs, but may be adjusted as storm systems continue.
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Feather River
#water
releases from
#LakeOroville
were increased to 10,000 cfs today & will be increased to 15,000 cfs this Sunday. Lake Oroville is currently at 95 percent capacity with 3.37 million acre-feet of water stored. Learn more > .
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Releases from Oroville Dam to the Feather River were increased to 20K cfs today and will increase to 25K cfs tomorrow due to heavy inflows into
#LakeOroville
. We will continue to adjust releases based on ongoing weather conditions and
#flood
control guidelines set by the
@USACEHQ
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DWR today conducted the first Phillips Station snow survey of the season. The manual survey recorded 55.5 inches of snow depth & a snow water equivalent of 17.5 inches, which is 177 percent of the January 3 average for this location.
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“This year’s result will go down as one of the largest snowpack years on record in California.” - Sean de Guzman, Manager of DWR’s
#SnowSurveys
and Water Supply Forecasting Unit.
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DWR today conducted the fourth Phillips Station
#snowsurvey
of the season. The manual survey recorded 126.5 inches of snow depth & a snow water equivalent of 54 inches, which is 221 percent of the April 3 average for this location.
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The intense storms in Southern CA prompted DWR to release excess storm water through the gated spillway at Pyramid Dam today in LA County. The water will be captured & stored downstream by
@UnitedWaterCD
in Lake Piru for future water supply to benefit communities in the region.
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DWR has begun releasing water from the main
#OrovilleDam
spillway. Total releases to the Feather River are currently at 15,000 cfs and will be adjusted as required to meet
@USACEHQ
flood conservation storage guidelines.
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With many
#California
river locations forecasted to reach flood stage by Monday, the State-Federal Flood Operations Center will continue to provide direct assistance to local flood emergency responders including supplying
#flood
fight materials and flood fight crews.
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“At this point we are switching to cumulative impacts so it’s not that any individual storm is the big, scary one. It’s what are the cumulative impacts, because it’s really rare for us to get into
#storms
7, 8, & 9 as part of a storm series.”-State Climatologist Mike Anderson
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Lake Oroville Spillway Incident Press Conference at 9 pm. Watch on Periscope via Twitter or FB
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Reservoirs are full to the brim in northern
#California
from the winter storms and the results are jaw dropping! Check out this view of
#LakeOroville
from last week, where we were even able to catch the spillway flowing.
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We are at full capacity at
#LakeOroville
for the 2nd year in a row! This is great news for ensuring adequate water supply for millions of Californians & environmental needs & we continue to manage both while maintaining flood protection for downstream communities.
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DWR continues to reinforce the emergency spillway. Construction crews working around the clock. Check out morning photos.
#OrovilleSpillway
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DWR Acting Director William Croyle caught some great pics while surveying the scene from the air this afternoon.
#OrovilleSpillway
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Water releases from
#LakeOroville
to the Feather River are at 9,000 cfs today. Lake Oroville is currently at 96% capacity with 3.4 million acre-feet of water in the reservoir. Since Dec. 1, Lake Oroville’s storage has increased approximately 230 feet & gained over 2.4 million...
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“The snowpack will not disappear in one week or one month but will lead to sustained high flows across the San Joaquin and Tulare Basins over the next several months...
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Wonder why the West has been so wet this year? Atmospheric rivers, and a lot of them! Learn more from
@NOAAClimate
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Since Dec. 1, Lake Oroville has increased more than 210 feet and gained over 2 million acre-feet of water. DWR continues to release water from
#LakeOroville
to maintain storage for
#spring
snowmelt in the Feather River watershed. Read more at .
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Climate change models show precipitation patterns are changing, creating more runoff & river flows in winter. Infrastructure built for seasonal patterns of the past cannot handle the
#WeatherWhiplash
& winter flows of today.
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Lake Oroville, the SWP's largest reservoir, is at 53% of average. Statewide CA’s major reservoirs are at just 50% of overall capacity. The amount of water expected to enter CA’s reservoirs when the snowpack melts is only projected to be 58% of average.
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As another atmospheric river hits California, DWR crews and local agencies are working together to stabilize the levee breach on the
#PajaroRiver
and continue emergency protective measures to help protect the community of
#Pajaro
in
#MontereyCounty
.
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Lake Oroville is at 899 feet elevation and storage is approximately 3.53 million acre-feet (MAF), which is 100 percent of its total capacity and 130 percent of the historical average. Read more at the
#LakeOroville
Community Update at .
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Flow over auxiliary spillway between 6,000 and 12,000 cfs. No danger to dam or people.
#OrovilleSpillway
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@CaliforniaDFW
successfully evacuated almost all salmon from the Feather River Fish Hatchery. Nice work! Great pics!
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Crews still working around the clock to reinforce emergency
#OrovilleSpillway
and remove debris from the diversion pool.See pics from today!
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Recent photos of progress made at
#OrovilleSpillway
. Despite wet weather, ongoing delivery of rock and concrete continues today.
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Weirs in the Sacramento flood system are already flowing, doing exactly what they’re designed to do. Weirs are designed to help manage
#flood
, control the flow of water in rivers and streams, and relieve pressure on mainstem levees. 📸 Tisdale Weir 1/12/23
#California
#Weirs
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Help slow the spread of
#COVID19
in your neck of the woods. Wear a mask when you are in public. //
#SlowTheSpread
#YourActionsSaveLives
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DWR reduced water releases from
#LakeOroville
to the Feather River to 13,000 cfs today. Lake Oroville is currently at 96% capacity with 3.38 million acre-feet of
#water
in the reservoir. Read more➡️ .
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Check out this before and after of the Phillips Station
#snow
course with just one year in between - May 1, 2022 vs. May 1, 2023. Can you believe the difference? This is a great example of
#California
’s extreme weather caused by a changing climate.
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The State of California, along with our partners at the Klamath River Removal Corporation, the federal government, State of Oregon and Klamath Basin Tribes, are making progress on the largest river restoration project in U.S. history!
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DWR is increasing releases from Lake Oroville to the Feather River to 18,000 cfs due to heavier snowmelt. Releases will be further increased to 20,000 cfs on Thursday. Learn more➡️
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DWR has begun releasing water from the main spillway at
#OrovilleDam
. We are closely monitoring the upcoming storms & will continue working with the
@USACEHQ
as we adjust outflow of the spillway to manage lake levels & experience changes to runoff into the lake.
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DWR reduced releases from
#LakeOroville
to the Feather River to 10,000 cfs due to decreased
#water
inflows into the reservoir. Flows are scheduled to be further reduced to 7,000 cfs on Friday. Lake Oroville is currently at 92 percent capacity. Learn more➡️
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DWR is continuing our support of
#flood
fighting efforts in
#TulareCounty
. In addition to fulfilling a request of 1 mile of muscle wall & 5,000 super saks, the Flood Operation Center has provided inundation maps & hydraulic models to Tulare County &
@CALFIRE_TUU
...
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Water releases to the Feather River are increasing in stages today from 25,000 cfs to 35,000 cfs for continued
#flood
control protection for downstream communities. As storms continue and the snowpack begins to melt, DWR is reserving space in Lake Oroville to capture this runoff.
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Roughly 620k cubic yards of material removed from diversion pool. Lake levels at 858.8' elevation. 24hr work continues.
#OrovilleSpillway
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A lot of work has been done on
#OrovilleSpillway
. Big thanks to all who worked days and nights on the project.
@CountyofButte
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Images of Lake Oroville in 2019 compared to this year show a shocking drop in water levels during our severe
#drought
. It’s up to us all to do our part to
#SaveOurWater
esp. during the summer when water use can increase. Learn what changes you can make at
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December storms have added to California’s seasonal snowpack and provided run off to our parched streams & reservoirs. While this offers a glimmer of hope, we aren’t out of the woods yet. What will it take to ease drought impacts? Read here:
#cadrought
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Today, DWR conducted the 3rd Phillips Station snow survey of 2019. The manual survey recorded 113" of snow depth & a snow water equivalent of 43.5". Statewide, the Sierra Nevada snowpack is 153% of average.
More here:
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Would you believe these are images of the same boat ramp at the San Luis Reservoir less than a year apart? This year, our reservoirs have seen an increase in water, which DWR will continue to move & store as much as possible to benefit communities, agriculture, & the environment.
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Main
#OrovilleSpillway
flowing at 100,000 cfs. Lake levels down to 894’ feet. Crews working to fill erosion on the emergency spillway.
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Huge Milestone for flood protection in the Sacramento Valley - the new expanded space in the Yolo Bypass made possible by DWR's Lower Elkhorn Basin Levee Setback Project is now filling with water from the Sacramento River. Seven-miles of new levee were finished in late-2023
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Thunderstorms are expected which can cause localized impacts with heavy rain & other potential severe weather. The timing between storms will be important for river levels to come down between rises & more areas may be exposed to increased flood risk with each successive storm.
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The large storms we experienced this year not only filled our
#reservoirs
but completely revitalized our lakes in northern
#California
. This video shows the stunning transformation of Shasta Lake from the sky! 🚁
@usbr
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DWR opened
#OrovilleSpillway
gates today at 11, with plans to run for several days at 50,000 cfs. See photos.
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The rain and snowfall
#California
has received this winter has dramatically changed conditions in many parts of California. This year will have one of the largest snowpacks on record, on par with the top 3 snowpack years since 1950.
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Check out the Oroville spillway in use for the first time since it was reconstructed.
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“We're working under conditions of intense saturation such that even moderate levels of rainfall can produce significant flooding impacts. We're working closely w/ local county offices of emergency services to make sure communities are prepared.”–DWR Director Karla Nemeth
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Since Dec. 1 Lake Oroville’s storage has increased approximately 179 feet and gained 1.68 million acre-feet of water. DWR continues to closely monitor lake levels, weather forecasts and mountain snow levels. In anticipation of increased runoff inflows into Lake Oroville...
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The first live snow survey of the year takes place tomorrow at Phillips Station. But you may be asking yourself, why should I care about a snow survey?
Here’s a great video to explain just that:
-
#california
#water
#cawater
#snow
#SnowSurvey2022
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The
#StateWaterProject
is working to move & store as much of the surplus water from these storms as possible & is making additional water available to its contractors (public agencies & local water districts) that have the ability to take delivery of the water in their own system
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DWR announced recent storms will allow the State Water Project to boost deliveries to 29 public water agencies. DWR now expects to deliver 30% of requested water supplies (or 1.27 million acre-feet) in 2023, up from the initial 5% announced on 12/1. More➡️
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Outflows are being reduced from 80k to 70k cfs to support the removal of debris from the diversion pool near the
#Orovillespillway
.
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The
#LakeOroville
reservoir has made an astounding recovery thanks to atmospheric rivers that delivered heavy amounts of rain & snow to CA this winter. See the difference between 12/21/22, when the reservoir was at 29% capacity, to 7/3/23 with Lake Oroville at 99% capacity.
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Local news affiliates just made a mistake. There is NO evacuation order in the Oroville area.
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Water, what a force! This is what 100,000 cfs looks like.
#LakeOroville
making room for the next round of storms.
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Run-off from the
#snowpack
will affect the Tulare Basin over the next few months. DWR provided 10k super sacks to help close levee breaches, 89k sandbags, 432k sq ft of protective plastic sheeting & over 5k ft of Muscle Wall to Tulare County to support emergency flood response.
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Statewide, snowpack is 111% of normal for this date! 1/19/2015 it was at 32%!
#WeStillNeedMoreSnow
#cadrought
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Crews continue to work around the clock to armor the emergency spillway in the event it's used later in the rainy season.
#OrovilleSpillway
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