As California moves into the drier summer season, the Department of Water Resources (DWR) has begun scaling back water releases from Lake Oroville, shifting from flood control to water conservation mode.
During winter and early spring, DWR performs flood control releases to protect the City of Oroville and downstream communities by creating space in the reservoir for storm inflows. Now, with the risk of major storms decreasing, the priority is to conserve as much water as possible for the dry months ahead.
As of this week, Lake Oroville sits at 891 feet in elevation, which is 97% of total capacity. Current releases into the Feather River have been reduced to 2,300 cubic feet per second, with adjustments made regularly in coordination with the U.S. Army Corps of Engineers and other water agencies.
Lake Oroville plays a critical role in the State Water Project, supporting water delivery for 27 million Californians, sustaining fish and wildlife, and helping maintain Delta water quality. Water released from the lake supports local agriculture, replenishes the Central Valley, and eventually supplies Southern California.
DWR continues to monitor snowpack levels, weather forecasts, and reservoir inflows to strike a balance between storage needs, environmental requirements, and long-term water supply planning.
With another wet winter behind us, Lake Oroville is once again proving to be one of the state’s most vital water assets.
Join us for a 12-hour food drive Friday, 6am to 6pm, in Redding or Chico. Help stuff a RABA or B-Line bus at Les Schwab with food donations!
LIVE UPDATESButte College celebrates Hispanic culture with first 'Festival de Nuestras Voces' on May 7by Marion Rodriguez
— Butte College to host first ever 'Festival de Nuestras Voces' on Wednesday
Butte College said the festival seeks to highlight Latino and Hispanic heritage through music performances
Translated 'the festival of our voices,' entertainment for the event includes Chico High School Ballet Folklorico
local performers and Yosimar Reyes a nationally recognized poet and activist who will be the keynote speaker
The festival takes place at the Butte College Main Campus center lawn on 3536 Butte Campus Dr.
is conducted by CalFire in conjunction with California Department of Water Resources at Loafer Creek State Recreation Area in Oroville
With the discovery of the highly invasive golden mussel in California waterways
the Department of Water Resources (DWR) is developing plans to protect State Water Project (SWP) infrastructure in Oroville while maintaining recreation opportunities at local reservoirs
Golden mussels have not been detected at Lake Oroville
and DWR will be implementing measures to prevent their introduction
Golden mussels can alter aquatic ecosystems by filter-feeding on planktonic algae and changing the habitat structure
impact water delivery systems by clogging small-diameter pipelines
and impact recreation by fouling boat hulls and motors and clogging intakes and cooling lines.
DWR is coordinating with partners at the California Department of Parks and Recreation (State Parks) and the California Department of Fish and Wildlife (CDFW) to implement a watercraft inspection program at Lake Oroville and the surrounding SWP facilities in Butte County
which is expected to begin later this month
watercraft and trailers will need to be mussel free and 100 percent dry to pass an inspection
or any area in the watercraft or trailer that can hold water
Mussel inspections at DWR’s Oroville facilities will be free
with more details about inspection locations
and a future decontamination station to come
Boats that pass inspection will be permitted to launch and also offered an Oroville reentry seal upon departure
An intact reentry seal will allow watercraft to bypass the inspection process on the next visit and launch at any of the three Oroville reservoirs
When recreating on California’s waterways
Golden mussels range from ¾ inches to 2 inches in size and have a light to dark yellowish-brown to brown-colored shell
When golden mussel populations are established
they are difficult to control since they can become very abundant and are easily spread to new waterbodies
are microscopic and free floating in infested waters and can be transported in a boat’s live well
or in the bilge if these areas are not completely drained
Additional details about golden mussels and an informational video are available on DWR’s website
flood control releases from Oroville Dam ensure the safety of the City of Oroville and downstream communities by reserving storage space to capture high storm inflows while permitting controlled and coordinated releases from the dam
As the summer months approach and rain and snowstorms driven by atmospheric rivers wane
DWR transitions from performing flood control releases at Oroville Dam to conserving as much water in the reservoir as possible
while still meeting water delivery and environmental requirements
DWR has decreased total releases from Lake Oroville to account for reduced inflows into the reservoir while optimizing storage for the benefit of water supply
DWR coordinates releases closely with the U.S
Army Corps of Engineers and other water operators and adjusts releases as needed to maintain balance throughout the water system
Lake Oroville is the largest storage facility in the State Water Project
providing flood protection while supporting environmental and water delivery needs to 27 million Californians
Some water released from Lake Oroville is distributed locally for agriculture benefits
while the remaining Feather River releases flow south through the State Water Project system to reduce salinity effects in the Delta
provide irrigation for crops in the Central Valley
and eventually make their way to Southern California
and mountain snow levels to optimize water storage while allowing for carryover storage into next year
Summer Hours in Effect for Spillway Day-Use Area
As the summer months approach and daylight hours linger
the Spillway Boat Ramp and Day Use Area is now open from 5 a.m
All vehicles and trailers are subject to inspection by the California Highway Patrol (CHP) for security purposes
There are five other boat ramps at Lake Oroville that are open and do not entail CHP inspections: Bidwell Canyon
DWR and its partners at the California Conservation Corps (CCC) and Butte County Sheriff’s Office are closing portions of Canyon Drive for tree and vegetation removal over the next two weeks
intersection and Oroville Dam Crest Road will be closed to traffic Tuesday
Canyon Drive will be closed between Oroville Dam Crest Road and Royal Oaks Drive (Upper Oroville Dam Overlook) Monday
DWR is performing fuel load reduction activities to minimize fire risk in areas surrounding Lake Oroville
Oroville Dam Crest Road will remain open to visitors during nearby tree removal work
DWR’s Fuel Load Management Plan is dedicated to reducing wildfire risk
and improving forest health around Lake Oroville
During vegetation management activities some trails within the Lake Oroville State Recreation Area may be intermittently closed
Trail users should use caution in active work areas and follow all posted signage
Vegetation management remains a top priority for DWR and its partners including CAL FIRE
the California Department of Fish and Wildlife (CDFW)
the California Department of Parks and Recreation (State Parks)
Lake Oroville is at 891 feet elevation and storage is approximately 3.29 million acre-feet (MAF)
which is 96 percent of its total capacity and 120 percent of the historical average
Feather River flows are at 650 cfs through the City of Oroville with 1,650 cfs being released from the Thermalito Afterbay River Outlet (Outlet) for a total Feather River release of 2,300 cfs downstream
DWR continues to assess Feather River releases daily.
The public can track precipitation, snow, reservoir levels, and more at the California Data Exchange Center
The Lake Oroville gage station is identified as “ORO.”
either observed and verified firsthand by the reporter
or reported and verified from knowledgeable sources
Translations may contain inaccuracies—please refer to the original content
Lake Oroville is expected to reach its capacity for the third year in a row
the first time such a milestone has ever been achieved for California's second-largest reservoir
Over the past few years, Lake Oroville's water levels have significantly recovered following years of drought that depleted the state's reservoirs to concerningly low levels
Above-average snowfall in the winter of 2023 and 2024 helped the reservoir recover
the lake is expected to reach its capacity this spring as snow melts
Lake Oroville's levels were marked at 888 feet
The lake's water levels have been steadily rising since late November
when winter storms begin to regularly to bring precipitation to Northern California
Lake Oroville's water levels peaked in early June after seasonal snowmelt supplemented the reservoir
amid dry conditions and increasing water needs
the lake's levels fell through the summer until starting to rise again in the fall
many of the state's reservoirs are still performing above average
"The April 1 snowpack is an important benchmark for water managers who rely on snowpack and snowmelt runoff forecast data to plan for the amount of water that will flow into California's rivers and reservoirs in the spring," a DWR spokesperson previously told Newsweek
"The State Water Project and water districts use this data to plan for how much water will be available for urban and agricultural water users during the drier summer and fall months."
likewise hit its capacity the previous two years
Lake Shasta's water levels were nearly 1,062 feet
the reservoir reached capacity in early May
A DWR spokesperson told Newsweek: "Lake Oroville is likely to reach full capacity this year
This will be the first time the reservoir has reached full capacity three years in a row."
DWR Director Karla Nemeth said in a press release: "It's great news that our state's snowpack has recovered from several weeks of extremely dry conditions in the heart of our winter storm season
it's not a wet year across the entire Sierra Nevada
but snowpack is less than average in the central and southern part of the mountain range
That snowpack ultimately flows to the Delta
and the regional disparity affects how much water the State Water Project will be able to deliver."
Lake Oroville's water levels are expected to continue rising through the spring
as warmer temperatures melt the snowpack in California's mountains
with the southern part of the state struggling with severe and extreme drought conditions
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Live EventSTUFF THE BUS: Food Drive 2025 See MoreJoin us for a 12-hour food drive Friday, 6am to 6pm, in Redding or Chico. Help stuff a RABA or B-Line bus at Les Schwab with food donations!
LIVE UPDATESMan charged with murder after ex-girlfriend's tragic death in Orovilleby Ashley Harting
OROVILLE, Calif. — A Hurleton man was arraigned in a Butte County courtroom on Wednesday, facing charges related to the fatal shooting of his ex-girlfriend over the weekend
Butte County District Attorney Mike Ramsey announced that Curtis Ector Morales
has been charged with felony counts of murder with the use of a firearm and possession of a short-barreled shotgun
The charges are connected to the death of 32-year-old Dakota Morningstar
who was shot on Morales' property in the 600 block of Black Bart Road in the rural Hurleton area
Ramsey stated that police received reports of a woman with a gunshot wound at approximately 11:55 p.m
Officers from the Butte County Sheriff's Office found Morningstar at the scene with a gunshot wound to her left side
the investigation revealed that Morningstar was Morales' ex-girlfriend and had recently moved out of the Black Bart Road property
She had returned to the property to collect her dog and personal belongings shortly before she was shot
Ramsey said that witnesses reported hearing a verbal altercation between Morningstar and Morales
Police discovered a short-barreled shotgun hidden in a manzanita bush on the property
Morales was arrested and booked into the Butte County Jail on suspicion of murder on Sunday morning
Morales appeared in court with his private attorney
He is scheduled to return to Butte County Superior Court on April 24
for the entry of plea and setting of a preliminary hearing
Morales is currently being held in custody with bail set at $2,015,000
Golden mussels during surveys at O’Neill Forebay in Merced County
Stopping the Spread of Golden Mussel
With the discovery of the highly invasive golden mussel in California waterways in October 2024
the Department of Water Resources (DWR) has been developing plans to protect State Water Project (SWP) infrastructure while maintaining facilities like Lake Oroville as prime recreation destinations
golden mussels are expected to begin spawning
making them a significant threat to the ecological health of all waters of the state
Golden mussels have not been detected at Lake Oroville and DWR will be implementing measures to prevent their introduction
with a program expected to begin within the next month
golden mussels can alter aquatic ecosystems by filter-feeding on planktonic algae and changing the habitat structure which can damage fisheries
DWR routinely monitors for these species and acts to prevent their spread to non-infested waters
Additional details about golden mussels and an informational video are available on DWR’s website. CDFW also issued a press release last week about a joint effort to stop the spread of golden mussels in California waterways
As the warm summer months approach and rain and snowstorms driven by atmospheric rivers wane
The Oroville Recreation Advisory Committee (ORAC) will hold a meeting on Friday
at the Southside Oroville Community Center located at 2959 Lower Wyandotte Road
ORAC was established by the Federal Energy Regulatory Commission (FERC) to review and provide recreation plan recommendations for Oroville Facilities owned by the Department of Water Resources (DWR)
The 13-member committee is made up of representatives from state and local government
DWR is hosting an Earth Day event at the Lake Oroville Visitor Center this Saturday
Join our guides in creating beautiful chalk art and craft projects showcasing your love for our planet and its precious resources
Also stop by to view wildflower-inspired artwork from Butte County residents of all ages
Artwork is being displayed in the Visitor Center’s front lobby from Saturday
the Visitor Center is open daily from 9 a.m
the Visitor Center features interpretive displays on Oroville Dam
View videos in the theater about the construction of Oroville Dam
and visit the 47-foot-tall observation tower that provides unsurpassed panoramic views of surrounding areas
Free guided tours for school and community groups are available by reservation
Parking and admission to the Visitor Center are free
CAL FIRE Recognizes DWR for Vegetation Management Efforts
CAL FIRE Butte County Unit Chief Garrett Sjolund recognized the Department for its vegetation and fire risk reduction efforts throughout the Lake Oroville area
strong winds began to push the fire along the Feather River and up the canyon towards the Kelly Ridge area
which would have had devastating impacts on local residents
thanks in part to DWR’s previous fuels reduction work along Oro Dam Blvd
which caused the fire to slow significantly
Due to lighter vegetation and ladder fuels in the area
surface fuels burned at a much lower rate and reduced spot fire potential
“It is my opinion that had the DWR not focused effort on fuels reduction along Oro Dam Blvd
the outcome of this incident may have been much different,” noted Chief Sjolund in his letter
DWR's Fuel Load Management Plan is reducing hazardous fuels and the risk of catastrophic wildfire by thinning vegetation using hand and mechanical methods
accompanied by chipping and controlled burning
firefighters have a better chance at suppressing a wildfire
DWR and its local partners treated or retreated more than 2,500 acres of vegetation
Lake Oroville is at 886 feet elevation and storage is approximately 3.21 million acre-feet (MAF)
which is 94 percent of its total capacity and 119 percent of the historical average
Know someone who would like to receive Community Updates? They can email their request to oroville@water.ca.gov
Various wildflowers blanket a field at North Table Mountain Ecological Reserve in Butte County
Stopping the Spread of Golden Mussels
Watercraft inspections at Lake Oroville and the surrounding SWP facilities are expected to begin within the next month
More details will be released soon about the inspection and decontamination program
Mussel larvae are microscopic and free floating in infested waters and can be transported in a boat’s live well
Flood Control Releases from Lake Oroville Ongoing
DWR continues to perform flood protection releases from Lake Oroville using the main spillway and Hyatt Powerplant
Releases from Lake Oroville during the spring months help maintain storage capacity in the reservoir to capture runoff from mountain snowmelt
while optimizing storage for the benefit of water supply
DWR continues to conserve as much water supply as possible in coordination with the U.S
Between October and June, DWR is required to operate Lake Oroville for flood control under federal Water Control Manual guidelines set by USACE. DWR is also operating under its own Interim Operations Plan (IOP)
approved by USACE and the Federal Energy Regulatory Commission
These federal regulations and the IOP establish an expanded storage space that is reserved to capture inflows from rain and future snowmelt
while protecting downstream communities from damaging flood events through water releases
Releases to the Feather River are coordinated closely with USACE and other downstream water operators
which would have had devastating impacts to local residents
Celebrate Earth Day this month with DWR and the Lake Oroville Visitor Center
The Visitor Center is currently accepting wildflower-inspired artwork from Butte County residents of all ages
Submissions can range from photography and painting to digital art
Artwork will be displayed in the Visitor Center’s front lobby from Saturday
DWR is hosting an Earth Day event at the Lake Oroville Visitor Center on Saturday
Lake Oroville is at 880 feet elevation and storage is approximately 3.13 million acre-feet (MAF)
which is 91 percent of its total capacity and 119 percent of the historical average
Feather River flows are at 1,000 cfs through the City of Oroville with 5,000 cfs being released from the Thermalito Afterbay River Outlet (Outlet) for a total Feather River release of 6,000 cfs downstream
Graphic explaining flood control releases in reservoirs
The Department of Water Resources (DWR) continues federally required flood control releases from Lake Oroville to maintain flood protection for downstream communities
Flood releases using Oroville Dam’s main spillway began this morning at 10 a.m
with water also being released through the Hyatt Powerplant for energy production
Total Feather River flood control releases are currently at 35,000 cubic feet per second (cfs)
DWR is required to operate Lake Oroville for flood control under federal Water Control Manual Guidelines set by the U.S
These federal regulations establish a set storage space that is reserved to capture inflows from rain and future snowmelt
while protecting downstream communities from damaging flood events through coordinated releases
DWR has increased releases from Lake Oroville
storm impacts and runoff into Lake Oroville were less than initially projected on forecasts and weather models
DWR currently plans to maintain flood releases this week at 35,000 cfs with releases subject to change with ongoing wet weather
Releases to the Feather River are coordinated closely with the U.S
Army Corps of Engineers and other downstream water operators
Feather River recreation users are advised to remain alert as river flows are expected to be swift and cold and may change based on projected weather forecasts
The information below reflects current reservoir level estimates
Forecasts can change quickly and may affect the estimates provided
The Lake Oroville reservoir is the largest storage facility in the State Water Project
and eventually make their way to southern California
The work is part of the fuel load management program which reduces fire risk
Flood Control Releases from Lake Oroville Continue
Water is being released through the Hyatt Powerplant for energy production and from Oroville Dam’s main spillway
DWR has reduced releases from Lake Oroville to conserve as much water supply as possible in coordination with the U.S
Releases are subject to change based on ongoing weather conditions
DWR is required to operate Lake Oroville for flood control under federal Water Control Manual guidelines set by USACE
The California Natural Resources Agency hosted its 19th Oroville Dam Citizens Advisory Commission meeting on March 7
the Commission received presentations from the Sutter Butte Flood Control Agency and the City of Oroville on the status of the City of Oroville’s levee
an explanation of the typical components of Water Control Manuals from the U.S
and an update on the Commission’s 2025 Legislative Report
The Citizens Advisory Commission is a forum for questions and feedback from the communities surrounding Oroville Dam. For information on the meeting, please visit the Oroville Dam Citizens Advisory Commission website
A transcript of the virtual meeting will be available on the webpage in the coming weeks
DWR and its partners at the California Conservation Corps (CCC) and Butte County Sheriff’s Office are closing a portion of Oro Dam Blvd
between Canyon Drive and Oro Powerhouse Road for tree and debris removal
A full road closure will be in effect Monday through Friday between 7 a.m
DWR is taking advantage of the closure to drop and clear large hazard trees that were damaged by the July 2024 Thompson Fire
in addition to performing routine fuel load reduction activities to minimize fire risk in areas surrounding Lake Oroville
Vegetation management remains a top priority for DWR and its partners
Boaters and recreationists can help combat the spread of a new invasive species recently discovered in California waterways – the golden mussel
this species poses a significant threat to infrastructure and the ecological health of all state waterways
Golden mussels range from ¾ inches to 2 inches in size and have a light to dark yellowish-brown to brown-colored shell
they can alter aquatic ecosystems by filter-feeding on planktonic algae and changing the habitat structure
and impact recreation by fouling boat hulls and motors and clogging intakes and cooling lines
Speed boat time trials are returning to the Thermalito Afterbay March 8-9
The event requires the closure of the southern portion of the Afterbay (south of Highway 162)
The Wilbur Road boat ramp and areas north of Hwy 162 will remain open for public use during the boating event
The event is hosted by the Northern California Outboard Association and East Bay Boat Club and features a mile-long course. Time trial events are expected Saturday and Sunday between 8 a.m. and 5 p.m. depending on weather and water conditions. More information about the event can be found on the American Power Boat Association webpage
Lake Oroville is at 862 feet elevation and storage is approximately 2.88 million acre-feet (MAF)
which is 84 percent of its total capacity and 126 percent of the historical average
Feather River flows are at 900 cfs through the City of Oroville with 6,700 cfs being released from the Thermalito Afterbay River Outlet (Outlet) for a total Feather River release of 7,600 cfs downstream
A drone view of water levels at Bidwell Bar Bridge at Lake Oroville in Butte County
Flood releases using Oroville Dam’s main spillway began Monday
3 with water also being released through the Hyatt Powerplant for energy production
Total Feather River flood control releases remain at 35,000 cubic feet per second (cfs) with a planned reduction to 30,000 cfs on Sunday
DWR is required to operate Lake Oroville for flood control under federal Water Control Manual guidelines set by the U.S
Inflows into Lake Oroville continue to exceed flood releases with water storage increasing in the reservoir
With a significant increase in runoff into Lake Oroville from recent storm systems
DWR’s civil maintenance crews have been patrolling the branches of Lake Oroville to capture floating woody debris before it reaches the main body of the lake
Higher inflows wash woody debris into the reservoir
which can impact water infrastructure and present a hazard to boaters
and pulling larger pieces of wood out of the lake and away from shoreline areas using boom lines
DWR crews spent a significant amount of time collecting woody debris in Lake Oroville in 2023 and 2024 following heavy storms and high reservoir levels with over 19,000 cubic yards of woody vegetation collected
Floating debris removal ensures continued infrastructure operations and the safety of the recreating public on Lake Oroville
boaters and other water recreationists should take precautions when operating watercrafts on Lake Oroville and should remain alert for floating debris
The Enterprise boat ramp is open for use thanks to continued rising lake levels
Located on the south fork arm of Lake Oroville
Enterprise ramp provides easy access to the south fork for fishing and swimming opportunities
Check the status of Lake Oroville boat and cartop ramps on the California Department of Parks and Recreation’s (State Parks) website
the Lake Oroville Visitor Center features interpretive displays on Oroville Dam
Lake Oroville is one of the State Water Project’s premier recreational destinations and one of California’s best fishing spots
The lake provides both warm-water and cold-water fisheries
with excellent bass fishing opportunities during the fall and winter months
Be sure to check CDFW fishing regulations before fishing
The marinas at Bidwell Canyon and Lime Saddle are open daily and provide a variety of services including a convenience store
DWR, State Parks, and CDFW maintain over 92 miles of trails in the Oroville area. An interactive map of recreation facilities, including open trails and their permitted uses (hike, bike, horse, multi), is available on DWR’s Lake Oroville Recreation webpage
A paper trail map is available at various locations
including most entrance kiosks and the Lake Oroville Visitor Center
Upstream migrating fish totals through the Feather River Fish Monitoring Station between Jan
Lake Oroville is at 862 feet elevation and storage is approximately 2.87 million acre-feet (MAF)
which is 84 percent of its total capacity and 137 percent of the historical average
Feather River flows are at 25,000 cfs through the City of Oroville with 10,000 cfs being released from the Thermalito Afterbay River Outlet (Outlet) for a total Feather River release of 35,000 cfs downstream
Total Feather River releases will decrease to 30,000 cfs on Sunday with flows reduced to 20,000 cfs through the City of Oroville and Outlet releases remaining at 10,000 cfs
A drone view of water levels at Bidwell Bar Bridge and (Left) Bidwell Canyon Marina at Lake Oroville in Butte County
With lessening storms and reduced inflows into Lake Oroville
DWR has decreased total Feather River flood control releases to 17,000 cubic feet per second (cfs)
DWR is required to release water from Lake Oroville
DWR maintains several areas that preserve and enhance wildlife habitat
Encompassed within the Thermalito Afterbay’s 17 miles of shoreline and 4,300 surface acres of water are numerous brood ponds that provide prime habitat and breeding areas for waterfowl and giant garter snakes
While water levels at the Afterbay may fluctuate based on agriculture and hydropower operations
DWR ensures brood pond habitats remain stable
A flap gate outlet system permits water to flow into brood pond areas
raising water levels while preventing water from being released and maintaining a stable elevation for waterfowl nests and giant garter snakes
These measures ensure these species continue to thrive
upholding DWR’s commitment to protect
and enhance the natural and human environments
To improve fish habitats at Lake Oroville and the Thermalito Afterbay
DWR works with members of the California Conservation Corps (CCC) to bundle recycled Christmas trees and anchor them in various locations around the lakebed
Anchoring the trees allows them to remain submerged
and improving fisheries and recreational fishing opportunities
Installation of the Christmas tree habitats will occur in the coming weeks
boaters and other water recreationists should take precautions when operating watercraft on Lake Oroville and should remain alert for floating debris
DWR, the California Department of Parks and Recreation (State Parks), and the California Department of Fish and Wildlife (CDFW) maintain over 92 miles of trails in the Oroville area. An interactive map of recreation facilities, including open trails and their permitted uses (hike, bike, horse, multi), is available on DWR’s Lake Oroville Recreation webpage
Lake Oroville is at 857 feet elevation and storage is approximately 2.8 million acre-feet (MAF)
which is 82 percent of its total capacity and 131 percent of the historical average
Feather River flows are at 7,000 cfs through the City of Oroville with 10,000 cfs being released from the Thermalito Afterbay River Outlet (Outlet) for a total Feather River release of 17,000 cfs downstream
Total Feather River releases will decrease to 15,000 cfs on Feb
with flows from the Outlet remaining at 10,000 cfs
A drone view of Oroville Dam and main spillway at Lake Oroville in Butte County
Flood Control Releases from Lake Oroville Increased
The Department of Water Resources (DWR) has increased federally required flood control releases from Lake Oroville to maintain flood protection for downstream communities
Atmospheric rivers have delivered rain and snow to the Feather River watershed this week
elevating inflows into Lake Oroville and requiring increased flood control releases
Forecast-Informed Reservoir Operations at Lake Oroville Can Increase Region’s Resilience to Floods
A new report released this week shows that changes to reservoir operations at Lake Oroville and New Bullards Bar Reservoir can further reduce flood risk for communities along the Yuba and Feather rivers during extreme atmospheric river storm events and potentially benefit water supply during drier periods. The approach, known as Forecast-Informed Reservoir Operations
and runoff projections to build more flexibility and efficiency into reservoir operations
Lake Oroville is managed by DWR and New Bullards Bar is managed by Yuba Water
combined with a planned second spillway at New Bullards Bar
could provide additional flood storage capacity in the Yuba-Feather system and reduce downstream peak flows during prolonged storms like the 1986 and 1997 floods that devastated Yuba County
“California’s reservoirs play a critical role in safeguarding our communities from floods and maintaining our state’s water supply
especially as we continue to see more extreme weather events in the form of larger
more severe periods of drought,” said DWR’s State Climatologist Dr
“The Yuba-Feather FIRO Viability Assessment is an important step toward improving flood protection to communities downstream while managing California’s valuable water resources for decades to come.”
Learn more about the Yuba-Feather FIRO Final Viability Assessment in DWR’s news release
DWR and its partners at the California Conservation Corps (CCC) and Butte County Sheriff’s Office continue the closure of a portion of Oro Dam Blvd
A full road closure will continue to be in effect Monday through Thursday between 7 a.m
Lake Oroville is at 864 feet elevation and storage is approximately 2.9 million acre-feet (MAF)
which is 85 percent of its total capacity and 124 percent of the historical average
Feather River flows are at 900 cfs through the City of Oroville with 9,100 cfs being released from the Thermalito Afterbay River Outlet (Outlet) for a total Feather River release of 10,000 cfs downstream
A drone view of water levels near the Oroville Dam at Lake Oroville
DWR Begins Required Flood Control Releases from Lake Oroville
Ahead of forecasted storms arriving this weekend
the Department of Water Resources (DWR) has increased water releases to the Feather River from the Oroville-Thermalito Complex to maintain flood protection for downstream communities
With runoff into Lake Oroville projected to range between 50,000 to 120,000 cubic feet per second (cfs) by early next week
DWR is currently planning to start using Oroville Dam’s main spillway on Monday for additional flood control releases.
DWR must increase releases from Lake Oroville
While weather conditions have largely remained dry in the southern part of California this water year
northern California received a series of atmospheric river-driven storms in late November and December to boost reservoir storage at Lake Oroville
Lake Oroville’s elevation rose approximately 64 feet
An update on planned Feather River releases will be provided Monday
DWR is nearing completion on a project to improve a 1.5-mile section of the Brad Freeman Trail between Cherokee Road and the Highway 70 Garden Drive overpass
DWR crews are currently installing a 4-foot-wide decomposed granite path alongside an 8-foot-wide asphalt path
which offers an improved recreation experience for trail users
The Brad Freeman Trail between Cherokee Road and Garden Drive may be closed intermittently during work
which is weather dependent and subject to change
DWR also previously installed accessible gates at trail entrance points
which restrict vehicles while still providing access for equestrians
and pedestrians. Project improvements were supported by a Land and Water Conservation Fund grant through the National Park Service
with remaining funding for the $700,000 project provided by DWR.
ORAC was established by the Federal Energy Regulatory Commission (FERC) to review and provide recreation plan recommendations for Oroville Facilities owned by DWR
the Butte County Sheriff’s Office crew is conducting post-burn cleanup efforts in the Loafer Creek area following CAL FIRE’s prescribed burn in October 2024
CAL FIRE hand crews and heavy equipment operators are also assisting as resources allow
These efforts focus on reducing wildfire risk by thinning vegetation through hand and mechanical methods
some trails within the Lake Oroville State Recreation Area may be intermittently closed
Vegetation management in this critical area remains a top priority for DWR and its partners
including most entrance kiosks and the Lake Oroville Visitor Center.
Lake Oroville is at 840 feet elevation and storage is approximately 2.58 million acre-feet (MAF)
which is 75 percent of its total capacity and 126 percent of the historical average
Feather River flows are at 1,050 cubic feet per second (cfs) through the City of Oroville with 4,950 cfs being released from the Thermalito Afterbay River Outlet (Outlet) for a total Feather River release of 6,000 cfs downstream
Total Feather River releases will increase to 12,000 cfs on Saturday with flows increased to 2,000 cfs through the City of Oroville and Outlet releases at 10,000 cfs
DWR continues to assess Feather River releases daily.
A drone view of Bidwell Bar Bridge and Bidwell Canyon Marina at Lake Oroville in Butte County
The Department of Water Resources (DWR) continues federally required flood control releases from Lake Oroville to reduce flood risk for downstream communities
Oroville Wildflower & Nature Festival
The Feather River Recreation & Park District (FRRPD) is hosting its annual Wildflower & Nature Festival at Riverbend Park in Oroville on Saturday
Admission is free to the festival with activities highlighting the area’s natural resources and booths showcasing handmade Butte County products
Activities and entertainment will be available for all ages including children’s crafts
Make sure to stop by DWR’s booth for information about native plants that inhabit local vernal pools and a craft activity for kids – making felt California poppies and tissue paper Butte County meadowfoam. More information about the Wildflower & Nature Festival is available on FRRPD’s website
DWR’s Civil Maintenance staff have removed log booms from the south
and north forks of the Feather River that feed into Lake Oroville
permitting access to recreation sites further upstream
crews use log booms to collect woody debris during high water inflow periods and prevent it from reaching the larger body of the lake
Crews will continue woody vegetation collection as water levels rise this spring at Lake Oroville
A popular excursion at Lake Oroville during high-water level periods is to take a boat trip to the upper end of the Middle Fork Arm to view Feather Falls
a Yosemite-style waterfall of exquisite beauty
there are many smaller waterfalls to see including some that tumble directly into Lake Oroville such as Bean Creek and Frey Creek
There are unlimited bass fishing opportunities along the route and trout fishing can also be good where the cold mountain streams enter the lake
and CDFW installed fish habitat structures earlier this month at Lake Oroville and the Thermalito Afterbay using approximately 1,300 recycled Christmas trees
The trees were collected by Chico Boy Scout Troop 2 and delivered free of charge to DWR by Recology
To create the habitats on Lake Oroville and the Thermalito Afterbay
members of the CCC team bundle the recycled Christmas trees together and anchor them in various locations around the lakebed
At Lake Oroville near the Bidwell Saddle Dam area
744 trees were assembled into 35 structures
570 trees were assembled into 56 structures
DWR has worked with local groups to construct fish habitat structures
which is one of the longest continuously running warmwater fish habitat improvement programs in the State of California
Lake Oroville is at 870 feet elevation and storage is approximately 2.97 million acre-feet (MAF)
which is 87 percent of its total capacity and 120 percent of the historical average
Feather River flows are at 2,500 cfs through the City of Oroville with 8,500 cfs being released from the Thermalito Afterbay River Outlet (Outlet) for a total Feather River release of 11,000 cfs downstream
With drier weather returning and reduced inflows into Lake Oroville
DWR has decreased total Feather River flood control releases to 13,000 cubic feet per second (cfs)
Lake Oroville is at 862.5 feet elevation and storage is approximately 2.87million acre-feet (MAF)
which is 84 percent of its total capacity and 132 percent of the historical average
Feather River flows are at 3,000 cfs through the City of Oroville with 10,000 cfs being released from the Thermalito Afterbay River Outlet (Outlet) for a total Feather River release of 13,000 cfs downstream
California Poppies bloom on a hillside near Lake Oroville in Butte County
the Department of Water Resources (DWR) continues to perform flood protection releases from Lake Oroville using the main spillway and Hyatt Powerplant
the 3,300-acre North Table Mountain Ecological Reserve is a flat-topped mesa providing spectacular views of the valley below
fissures along the vast lava caps form natural streams
and waterfalls that cascade off the plateau to the valley below
DWR, the California Department of Parks and Recreation (State Parks), and CDFW maintain over 92 miles of trails in the Oroville area. An interactive map of recreation facilities, including open trails and their permitted uses (hike, bike, horse, multi), is available on DWR’s Lake Oroville Recreation webpage
including most entrance kiosks and the Lake Oroville Visitor Center.
Lake Oroville is at 875 feet elevation and storage is approximately 3.06 million acre-feet (MAF)
which is 89 percent of its total capacity and 121 percent of the historical average
A new wooden foot bridge spans a small stream that cuts through the Brad Freeman Trail near the Hyatt Powerplant
DWR and the California Department of Parks and Recreation (State Parks) have reopened additional Lake Oroville State Recreation Area trails that were damaged by the July 2024 Thompson Fire
State Parks has rebuilt the Potter’s Ravine foot bridge
which will also permit public access to the North Fork trail
the east portions of the Brad Freeman and Dan Beebe trails from the base of Oroville Dam’s main spillway to Canyon Drive have reopened
DWR and State Parks continue to assess fire impacts to recreation facilities and prioritize recovery efforts
Trail users should remain alert during recreation activities as State Parks continues trail repairs and brush removal using heavy equipment
Closures remain in effect at the following locations:
DWR, State Parks, and the California Department of Fish and Wildlife (CDFW) maintain over 92 miles of trails in the Oroville area. An interactive map of recreation facilities, including open trails and their permitted uses (hike, bike, horse, multi), is available on DWR’s Lake Oroville Recreation webpage
Lake Oroville is at 862 feet elevation and storage is approximately 2.87million acre-feet (MAF)
which is 84 percent of its total capacity and 130 percent of the historical average
Feather River flows are at 1,600 cfs through the City of Oroville with 8,800 cfs being released from the Thermalito Afterbay River Outlet (Outlet) for a total Feather River release of 10,400 cfs downstream
Total Feather River releases will decrease to 10,100 cfs on March 1 with flows through the City of Oroville reduced to 1,300 cfs
the Butte County Sheriff’s Office crew is continuing post-burn cleanup efforts in the Loafer Creek area following CAL FIRE’s prescribed burn in October 2024
Smoke will be visible throughout the Oroville area
Lake Oroville is at 878 feet elevation and storage is approximately 3.09 million acre-feet (MAF)
which is 90 percent of its total capacity and 120 percent of the historical average
Feather River flows are at 2,500 cfs through the City of Oroville with 10,000 cfs being released from the Thermalito Afterbay River Outlet (Outlet) for a total Feather River release of 12,500 cfs downstream
Total Feather River releases will be decreased to 11,000 cfs on Sunday
April 13 with flows through the City of Oroville reduced to 2,200 cfs and flows from the Outlet reduced to 8,800 cfs
Benefits Of the Flexible Water Management Strategy Outlined in A New Report
OROVILLE, Calif. – A new report released today shows that changes to reservoir operations at Lake Oroville and New Bullards Bar Reservoir can further reduce flood risk for communities along the Yuba and Feather rivers during extreme atmospheric river storm events and potentially benefit water supply during drier periods. The approach, known as Forecast-Informed Reservoir Operations
The Yuba and Feather rivers originate in the Sierra Nevada and join at Marysville and Yuba City before flowing into the Sacramento River
With significant watershed runoff making both rivers prone to flooding
Lake Oroville and New Bullards Bar play a critical role in managing river flows
especially as the state sees more intense atmospheric river storms
While reducing flood risk is the top priority
FIRO can also improve California’s ability to provide a reliable water supply for communities and agriculture
“This is a critical step towards making more floodwaters available for groundwater recharge when we see extremely wet storms,” said DWR Director Karla Nemeth
“FIRO drives tighter coordination between reservoir operators and water districts downstream
creating opportunities to use reservoir releases to build up our groundwater reserves for dry years.”
Realizing The Full Benefits of FIRO With a Second Spillway at New Bullards Bar Dam
Yuba Water is planning operational changes
and the construction of a new Atmospheric River Control (ARC) Spillway at New Bullards Bar
The second spillway will have gates 31.5 feet lower than the dam’s existing spillway gates
allowing the agency to release water before large
when there is enough downstream channel capacity to handle the flows
“The ARC Spillway will help realize the full benefits of FIRO in our region by reducing peak flows downstream and decreasing stress on our levee system during large atmospheric river events,” explained Yuba Water’s Director of Resource Planning John James
we’re essentially gaining the amount of flood storage that would historically only be created through building additional infrastructure
we’re enhancing existing infrastructure and using the latest in science and technology to modernize flood operations and improve public safety.”
The ARC Spillway project is currently at 100 percent design with Yuba Water actively pursuing state and federal grant funding
Yuba Water anticipates construction could begin as soon as 2027
The existing spillway capacity at Oroville Dam is already adequate to fully realize the benefits of FIRO.
Next Step: Incorporating FIRO Into Water Control Manual Updates
both DWR and Yuba Water are required to draw down their reservoirs to ensure there’s enough flood storage space
These requirements are outlined in each reservoir’s water control manual
Since advanced weather forecasting tools give dam operators more notice of incoming storms
water releases to reduce flood risk may begin earlier using FIRO
providing additional storage capacity to capture increased runoff into reservoirs
As storm systems pass and dry conditions return
Both agencies are working with the USACE Sacramento District to update their water control manuals
While FIRO and the water control manual are separate processes
the final viability assessment can help inform the water control manual process
The updates will ensure both reservoirs continue to comply with federal flood control guidelines while potentially adding flexibility to make operational decisions based on improved forecasting
Public meetings for the water control manual updates are on track to begin this year
“The Yuba-Feather FIRO Viability Assessment
is an important step toward formalizing our district's use of improved weather forecasts for strategic water management decisions at New Bullards Bar and Oroville reservoirs,” said Jenny Fromm
the USACE Sacramento District’s chief of water management
“As we consider including aspects of the report in water control manual updates for these non-USACE-owned reservoirs
public participation in the process will be another essential part of our efforts to decrease flood risk and improve drought resilience.”
FIRO is being implemented successfully at Lake Mendocino in the Russian River watershed in Northern California and will soon be integrated into operations at Prado Dam in the Santa Ana River watershed in Southern California
As the largest and most complex FIRO assessment to date and the first with a primary goal of reducing flood risk
the Yuba-Feather FIRO Program continues establishing FIRO’s benefit in California as an important part of a comprehensive water management and resilience strategy
Media@water.ca.gov
dcordell@yubawater.org
Center for Western Weather and Water Extremes
UC San Diego’s Scripps Institution of Oceanography
Lmwood@ucsd.edu
spk-pao@usace.army.mil
LIVE UPDATESMan arrested for murder after fatal shooting of ex-girlfriend in Orovilleby Adam Robinson
— A man has been arrested for murder following the fatal shooting of his ex-girlfriend at a home in Oroville over the weekend
deputies from the Butte County Sheriff's Office (BCSO) responded to a report of a shooting on Black Bart Road
Despite lifesaving efforts by deputies and medical personnel
detectives contacted several people at the property where the woman was found
Detectives obtained a search warrant for the property and determined that Morales and the victim had previously been in a dating relationship
Detectives said they uncovered evidence leading them to believe Morales was responsible for the shooting
The Butte County Sheriff's Office said that the investigation is ongoing
Morales was booked into the Butte County Jail on murder charges
He is scheduled to be arraigned at the Butte County Superior Court on Wednesday afternoon
Report a correction or typo.
Northern California’s significant rain and snow levels in 2023 continued to benefit Lake Oroville at the start of 2024. Rising reservoir levels from January storms prompted DWR to conduct flood control releases from Oroville Dam’s main spillway for the second year in a row. Releases began Jan. 31 and continued intermittently throughout the spring
providing critical flood protection to downstream communities
DWR maintains storage space in Lake Oroville during the typical wet weather months to ensure adequate space remains in the reservoir to capture runoff from rain and spring snowmelt
Releases are coordinated closely with the U.S
Army Corps of Engineers and other water operators and adjusted as needed
The Feather River watershed received enough precipitation and snowpack runoff in the first months of 2024 to fill Lake Oroville to capacity by early May for the second year in a row. As the largest storage facility in the State Water Project
Lake Oroville helps provide water to 27 million Californians and 750,000 acres of farmland
making spring an important time for water project operators to fill reservoirs ahead of dry months
With a full reservoir providing prime recreation opportunities at the Lake Oroville State Recreation Area
the California Department of Parks and Recreation (State Parks) completed improvements to reopen the Bidwell Canyon Gold Flat Loop Campground
In addition to repaving campground access roads
three of the 37 tent/RV camping sites received accessibility upgrades with parking stalls and a clear path of travel to accessible restroom and shower facilities
Upgrades to the campground also included new water and sewer facilities to complement new power hookups that were completed in recent years.
In late June, DWR announced an update to Lake Oroville’s storage capacity
Because decades had passed since Oroville Dam’s construction
DWR sought to assess whether sedimentation (rock and silt settling on the lakebed floor) had altered Lake Oroville's storage capacity and topography significantly
Using an airplane-mounted LiDAR (Light Detection and Ranging) laser system and multibeam-sonar bathymetry instruments
highly detailed 3D topographic terrain models of the bottom of the lake were created
which DWR engineers used to calculate a new storage capacity of 3,424,753 acre-feet
approximately 3 percent less than previously estimated
the Thompson Fire threatened the Lake Oroville State Recreation Area and several DWR facilities including the Hyatt Powerplant
with DWR activating its emergency Incident Command Team in response
several recreation trails near the Diversion Pool and in the Potter’s Ravine area remain closed for repair and hazard tree removal
DWR’s Oroville Field Division hosted emergency preparedness exercises for staff and partnering local emergency management agencies
A tabletop exercise included a review of the Oroville-Thermalito Complex dams
and an overview of DWR’s incident command team structure which follows National Incident Management System (NIMS) guidelines established by the Federal Emergency Management Agency (FEMA)
in-depth functional exercise had DWR staff and emergency management partners responding to a mock emergency scenario
DWR leads emergency preparedness trainings on a yearly basis to ensure Oroville Field Division staff readiness for any type of emergency or incident
The exercises reinforce DWR’s commitment to enhancing emergency preparedness and maintaining relationships and collaboration with local emergency response partners
Construction work also continued on the River Valve Outlet System (RVOS) at Oroville Dam
The system is a series of two parallel outlet conduits
that have the capacity to draw water from deep in Lake Oroville for release
providing the ability to discharge cold water to the Feather River to maintain water temperatures necessary for fish health
It also ensures the ability to maintain Feather River flows through RVOS releases during drought years
especially if reservoir levels drop below Hyatt Powerplant’s water intake structures
DWR also made progress on a project to improve a 1.5-mile section of the Brad Freeman Trail between Cherokee Road and the Highway 70 Garden Drive overpass
Work this fall included paving an 8-foot-wide asphalt path and the installation of accessible box gates at trail entrance points
Future work is weather dependent and will include a 4-foot-wide decomposed granite path for pedestrians
The improvement project is supported by a Land and Water Conservation Fund grant through the National Park Service
with remaining funding for the $700,000 project provided by DWR
Fuel load reduction and fire mitigation work continued on DWR property along Oro Dam Blvd
and the Loafer Creek State Recreation Area
DWR and its local partners have treated or retreated more than 2,500 acres of vegetation
DWR’s Floating Classroom program returned this fall
offering free educational rafting tours on the Feather River to local schools and public members
The Floating Classroom program takes participants through Feather River spawning habitat while scientists with DWR and Pacific States Marine Fisheries Commission provide information on Chinook salmon conservation efforts
and fisheries management activities supported by DWR’s State Water Project (SWP)
This year’s program provided free education to more than 900 local students
Annual Chinook salmon spawning activities at the Feather River Fish Hatchery in Oroville were also completed
The Hatchery collected enough eggs to meet its normal production goal of 2 million spring-run fingerlings and 6 million fall-run fingerlings
with additional eggs collected to increase production this year
Another 1 million spring-run and 6 million fall-run Chinook salmon will be produced to address declines in Central Valley Chinook salmon populations during recent years
Chinook salmon fingerlings raised at the Hatchery will be released in the Feather River and San Francisco Bay between March and June to support inland and ocean populations
The Feather River Fish Hatchery is a SWP facility built in the late 1960s by DWR to mitigate impacts on fish migration resulting from the construction of Oroville Dam
DWR owns and maintains the facility and provides funding to the California Department of Fish and Wildlife (CDFW) to perform spawning
DWR looks forward to initiating and completing more projects in 2025 at the Oroville-Thermalito Complex
The Lake Oroville Community Update will continue to share news and information with the community.
The Lake Oroville Visitor Center will close all day for the Christmas and New Year holidays
Visitors may still access nearby trails during the holiday closures
The Spillway Day Use Area and Boat Ramp will be open from 6 a.m
Winter hours for the Spillway Day Use Area are in effect through April 30
with the recreation area open daily from 6 a.m
Lake Oroville is at 791 feet elevation and storage is approximately 2 million acre-feet (MAF)
which is 59 percent of its total capacity and 110 percent of the historical average
Feather River flows are at 800 cubic feet per second (cfs) through the City of Oroville with 950 cfs being released from the Thermalito Afterbay River Outlet (Outlet) for a total Feather River release of 1,750 cfs downstream
DWR continues to assess Feather River releases daily
DWR wishes everyone a happy holiday season
The Lake Oroville Community Update will return on January 10
A drone view of the Historic Bidwell Bar Bridge and Lake Oroville in Butte County
With wetter watershed conditions earlier in the week
DWR increased releases to 15,000 cubic feet per second (cfs)
but reduced releases today as drier conditions returned
Planned Water Fluctuations at the Oroville-Thermalito Complex
Water levels at several locations within the Oroville-Thermalito Complex will fluctuate this weekend for planned concrete work on the River Valve Outlet System (RVOS) at Oroville Dam
water levels at the Thermalito Afterbay will drop approximately 3 feet
while water levels at the Diversion Pool and Thermalito Forebay will be approximately 1 foot lower than usual
These water level fluctuations are within the standard operating range at these facilities
with water elevations returning to their usual level by Sunday evening
The lower water levels within the complex enable DWR to continue making progress on the RVOS at Oroville Dam
A new report released last week shows that changes to reservoir operations at Lake Oroville and New Bullards Bar Reservoir can further reduce flood risk for communities along the Yuba and Feather rivers during extreme atmospheric river storm events and potentially benefit water supply during drier periods. The approach, known as Forecast-Informed Reservoir Operations
Lake Oroville is at 868 feet elevation and storage is approximately 2.96 million acre-feet (MAF)
which is 86 percent of its total capacity and 123 percent of the historical average
Feather River flows are at 4,000 cfs through the City of Oroville with 8,500 cfs being released from the Thermalito Afterbay River Outlet (Outlet) for a total Feather River release of 12,500 cfs downstream
On Sunday total Feather River flows will reduce to 11,500 cfs with flows through the City of Oroville at 3,000 cfs and flows from the Outlet at 8,500 cfs
A drone view of Bidwell Canyon Marina at Lake Oroville in Butte County
Like Chinook salmon that migrate from the Pacific Ocean to the Feather River to spawn
steelhead trout have similar migratory practices
with most returning in the fall and winter months
With more than 1,300 steelhead trout migrating upstream from DWR’s fish monitoring station this year
the cooler months offer prime steelhead fishing opportunities in the Feather River
The Oroville Wildlife Area (OWA) provides walk-in access to several miles of the Feather River for fishing
the Thermalito Forebay and Thermalito Afterbay offer additional excellent fishing opportunities for steelhead
Lake Oroville is also one of the State Water Project’s premier recreational destinations and one of California’s best fishing spots
Be sure to check California Department of Fish and Wildlife (CDFW) fishing regulations before fishing
DWR staff are reporting high numbers of ticks this fall along Lake Oroville State Recreation Area trails and within vegetated or grassy portions of the Oroville Wildlife Area (OWA)
Ticks are parasites that feed off the blood of a host such as an animal or human
They live in vegetated areas and crawl to the tips of grasses
or branches and wait for a host to brush up against them
Ticks can carry diseases including Lyme Disease
which can be transmitted to a host and cause serious illness and long-term health issues
When recreating around Lake Oroville and the OWA
protect yourself from ticks using these methods:
While Oroville Dam plays a critical role in providing flood protection to downstream communities
it is also a prime location for physical fitness
A 1.3-mile paved road and separated two-lane multi-use path runs the length of the dam’s crest
offering an opportunity for exercise while enjoying scenic views of both Lake Oroville and the valley
Free parking is available on either side of the dam’s crest with restroom facilities located at the intersection of Canyon Drive and Oroville Dam Crest Road
Additional nearby parking is available at the Oroville Dam Crest Overlook
with a short path connecting to the dam crest road
For early birds or late-night fitness enthusiasts
making it a great location for free outdoor recreation during the shorter daylight hours of the autumn and winter months
Lake Oroville is at 758 feet elevation and storage is approximately 1.68 million acre-feet (MAF)
which is 49 percent of its total capacity and 95 percent of the historical average
The Lake Oroville Community Update will return on December 6
where personnel harvest and fertilize eggs
at the Feather River Fish Hatchery in Oroville
The facility was built between 1966 and 1967 by the California Department of Water Resources and operated by the Department of Fish and Wildlife
to compensate for spawning grounds lost to returning salmon and steelhead trout with the construction of Oroville Dam
roughly 9,000 to 18,000 salmon and 2,000 steelhead are spawned and raised at the hatchery
Annual Chinook salmon spawning activities at the Feather River Fish Hatchery in Oroville have been completed
This treatment improves the health of the fish
increasing the survival of Chinook salmon from egg to juvenile
The Feather River Fish Hatchery is a California State Water Project (SWP) facility built in the late 1960s by the California Department of Water Resources (DWR) to mitigate impacts on fish migration resulting from the construction of Oroville Dam
DWR’s civil maintenance crews will begin deploying log booms within the next few weeks throughout the various branches of Lake Oroville to capture floating woody debris before it reaches the main body of the lake
inflows into Lake Oroville are expected to increase with strong storms from atmospheric rivers
These higher inflows wash woody debris into the reservoir
Stop by the Lake Oroville Visitor Center each weekend in December for free winter-themed craft activities for kids three-years-old and up
Located at 917 Kelly Ridge Road in Oroville
Snow-cember weekend craft activities include:
Rising reservoir levels at Lake Oroville from recent storms have required the closure of Lakeside Access Road at Oroville Dam
vehicle access to the Spillway Boat Ramp and Day Use Area is available daily between 6 a.m
with all vehicles and trailers subject to inspection by the California Highway Patrol (CHP) for security purposes
There are three other boat ramps at Lake Oroville that are open 24 hours per day and do not entail CHP inspections: Bidwell Canyon
Lake Oroville is at 785 feet elevation and storage is approximately 1.94 million acre-feet (MAF)
which is 57 percent of its total capacity and 108 percent of the historical average
In November a series of atmospheric rivers brought heavy rainfall to Northern California, with Lake Oroville experiencing an approximate 26-foot rise in elevation between Nov. 19 and Nov. 30 due to runoff. Incoming weekend storms are expected to further raise water levels at Lake Oroville
but with the reservoir currently at 56 percent of its total capacity
there is still ample storage to capture storm runoff while providing flood control protection for the Feather River and downstream communities
Water inflows to the reservoir during November storms were as high as 64,000 cubic feet per second (cfs) while outflows in the Feather River through Oroville remained at a minimum of 800 cfs
DWR took advantage of the recent storm systems to capture as much water as possible in Lake Oroville
while continuing to support environmental and water delivery needs to 27 million Californians
The public can track precipitation, snow, reservoir levels, and more at the California Data Exchange Center. The Lake Oroville gage station is identified as “ORO.”
LIVE UPDATESCalifornia's Lake Oroville sees rising water levels amid storm impactby Tyler Van Dyke
SACRAMENTO, Calif. — The California Department of Water Resources (DWR) is set to conduct its second snow survey of the season on Friday at Phillips Station near Lake Tahoe
This survey is part of the California Cooperative Snow Surveys (CCSS) program
and disseminates snow data from more than 265 snow courses and 130 snow sensors throughout the Sierra Nevada and Shasta-Trinity Mountains
but it also forecasts seasonal and water year runoff for major snow-bearing watersheds in California
Lake Oroville
which is 75 percent of its total storage capacity
The runoff for the lake is projected to range between 50,000 to 60,000 cubic feet per second by early next week
Lake Oroville’s elevation is expected to rise several feet over the coming week
The reservoir's storage saw a significant boost due to a series of atmospheric river-driven storms in Northern California in late November and December
leading to the elevation rising approximately 64 feet between November 19 and December 31
"Since Lake Oroville’s elevation is currently 126 percent of its historical average for this date
the increase in water elevation has prompted DWR to begin making flood control releases," said a DWR spokesperson
DWR is increasing releases from Lake Oroville."
When asked about concerns for water levels lasting over the summer
"While this storm system will certainly boost water supply at Lake Oroville
the Feather River Basin would continue to need further atmospheric river storms for Lake Oroville to reach full capacity this summer
and mountain snow levels to optimize water storage while allowing for carryover storage into next year."
The Feather River Fish Hatchery raises steelhead at the hatchery and releases them into the Feather River at Boyd’s Pump Boat Launch in Yuba City
The California Department of Fish and Wildlife (CDFW) has begun planting Central Valley steelhead raised at the Feather River Fish Hatchery at sites along the Feather and Sacramento rivers
A total of 540,222 yearling-size steelhead were raised in 2024 for release in local waterways between Jan
Steelhead spawning operations are also underway at the Hatchery and will continue through early February
These fish enter the Hatchery via the fish ladder that leads up from the Feather River Fish Barrier Dam and can be seen at the viewing windows and facility
the juvenile fish will be reared at the hatchery for a full year and then released next winter into the Feather River
Like the salmon that populate the Feather River
steelhead trout migrate from the river to the ocean
they can spawn several times during their lifetime
The name “steelhead” comes from their appearance
a more streamlined shape than Chinook salmon with a silvery or brassy color as an adult
DWR owns and maintains the facility and provides funding to CDFW to perform spawning
Celebrate one of the greatest migratory bird pathways in the world at the Snow Goose Festival of the Pacific Flyway happening Jan
The festival hosts a variety of activities throughout the four-day event
including guided field trips to view the waterfowl
and Snow Geese that migrate through the Northern Sacramento Valley during the winter months
and guided field trips during the four-day event
Floating Classroom Program Highlights Chinook Salmon Lifecycle
the Feather River in Oroville is home to adult Chinook salmon that have returned to their natural spawning grounds to complete their lifecycle and start the next generation
This infusion of thousands of salmon offers a prime opportunity for public education
with classes held on the river instead of within the four walls of a school
Through the Department of Water Resources’ (DWR) Feather River Floating Classroom Program
people of all ages are learning about the salmon lifecycle and critical ongoing conservation efforts and research in the Feather River.
Developed by environmental scientists within DWR’s Division of Integrated Science and Engineering (DISE)
the Feather River Floating Classroom Program has held various forms over the last decade
For many years public tours were offered solely during the City of Oroville’s Salmon Festival
With the program’s growing popularity
DWR is now supporting dozens of free tours for local schools and public members during the fall spawning season
“The floating classroom program is so important because it gives people an opportunity to have a connection to their local environment,” said Michelle Pepping
“We’re building that bridge from the environment directly to the community and sharing information about the salmon’s life history and the work DWR does on the river to benefit salmon.”
The 2024 fall-run spawning season marked the first year in which DWR sponsored dozens of free tours to local schools and members of the public, with support from the Pacific States Marine Fisheries Commission and the Thermalito Union Elementary School District
While the Feather River Floating Classroom program has concluded for the season
DWR’s efforts continue year-round to study salmon and enhance the Feather River habitat and help Chinook Salmon populations thrive
The Feather River Floating Classroom program will resume with the return of fall-run Chinook salmon
Read more about the Feather River Floating Classroom program on DWR’s website and watch our YouTube video
Lake Oroville is at 835 feet elevation and storage is approximately 2.52 million acre-feet (MAF)
which is 74 percent of its total capacity and 129 percent of the historical average
Feather River flows are at 650 cubic feet per second (cfs) through the City of Oroville with 1,100 cfs being released from the Thermalito Afterbay River Outlet (Outlet) for a total Feather River release of 1,750 cfs downstream
Water Control Manual Update Informational Meeting
Army Corps of Engineers (USACE) Sacramento District will host a public meeting on October 15 to share information regarding water control manual updates for New Bullards Bar and Oroville Dams
The meeting will be held from 5:00 to 6:30 p.m
at the Sutter County Veterans Memorial Building at 1425 Veterans Memorial Circle in Yuba City
USACE will present information on the water control manual update process
audience members will have the opportunity to ask questions regarding the update process
Comment cards will also be available to submit questions or comments.
Water Control Manuals are the operational procedures that guide storm-season operations to ensure dam owners comply with federal rules related to flood management for the protection of downstream communities
Updates to the Water Control Manuals for Oroville and New Bullards Bar are being considered to reflect recent improvements to forecasting and coordinated operations between the two reservoirs
California Prepares for Extreme Weather Swings
The Department of Water Resources (DWR) previewed the new Water Year which started October 1 by highlighting preparations for more extreme weather events this season following a record hot summer across much of California and a looming La Niña pattern
climate extremes have posed significant challenges to water managers
especially the extreme hot and dry conditions that frequently persist well past summer months and into the fall
California is seeing that right now with above-average temperatures forecast into October and no rain in the current forecast
the water that California does receive will arrive from more powerful storms
and hotter temperatures will mean less winter precipitation falls as snow and more will arrive as rain
While Lake Oroville, the State Water Project’s largest reservoir, is currently 98 percent of average, the latest outlook from NOAA’s Climate Predication Center shows a 71 percent chance of La Niña conditions emerging this fall
While seven of the 10 La Niña events this century resulted in dry years
research also suggests that even as the climate grows hotter and drier overall
the precipitation that California does receive will arrive in stronger storms
More information about new Water Year preparations is available in DWR’s press release
DWR had a great time supporting the City of Oroville’s Salmon Festival celebrating the migration of native Chinook salmon in the Feather River
Thank you to everyone who stopped by our educational booth and took a free tour of the Feather River Fish Hatchery
DWR staff estimated that approximately 600 children and adults participated in DWR-led tours of the Hatchery
where Chinook salmon and steelhead are raised to improve fisheries populations throughout the state
DWR also partnered with the Oroville State Theater to showcase videos about efforts to support vital salmon habitat restoration, fisheries health, and population growth. To learn more about what DWR is doing year-round to support Feather River fish populations, visit our Storymap webpage
and the Feather River offer additional excellent fishing opportunities for Chinook salmon and steelhead
DWR, State Parks, and the California Department of Fish and Wildlife (CDFW) maintain over 92 miles of trails in the Oroville area. An interactive map of recreation facilities, including open trails and their permitted uses (hike, bike, horse, multi), is available on DWR’s Lake Oroville Recreation webpage
Lake Oroville is at 777 feet elevation and storage is approximately 1.86 million acre-feet (MAF)
which is 54 percent of its total capacity and 98 percent of the historical average
Feather River flows are at 800 cubic feet per second (cfs) through the City of Oroville with 4,200 cfs being released from the Thermalito Afterbay River Outlet (Outlet) for a total Feather River release of 5,000 cfs downstream
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