San Francisco will be in great shape going into 2023, said Spreck Rosekrans, executive director of Restore Hetch Hetchy Its unfortunate that too little is being done with these flows to recharge groundwater basins to help cities and farms and even restoring Hetch Hetchy Valley., Kurtis Alexander is a San Francisco Chronicle staff writer. Hetch Hetchy is Monitoring location 11275500. The reservoir is now projected to cost $4.4 billion, with Prop. At the same time, theyve also said its critical to maintain sufficient water supplies to keep Bay Area communities and its economy running during a prolonged drought. Quite an eye opener. Only improvement I would suggest is an improvement of the display of the smaller reservoirs so the names are readable. However, I am interested in how much we are saving. The Department of Water Resources, which manages the state's water supply, said in a statement that there are several possible reasons for the difference in inflow amounts between the two reservoirs. Top ways to experience Hetch Hetchy Reservoir and nearby attractions Yosemite: Audio Driving Tour 1 Full-day Tours from $9.99 per group (up to 8) Private Yosemite Explorer Package | 3 Days of Adventure 3 Private and Luxury from $750.00 per adult (price varies by group size) Private Family Photo Day in Yosemite 78 Recommended Full-day Tours from No it is correct. Its not possible to see or really interact with the tiniest slivers. "It was a very healthy shot in the arm. He frequently writes about water, wildfire, climate and the American West. The construction of the Hetch Hetchy Railroad took place from 1915 to 1918. Forty-six percent . Data and Tools The maximum that the city has put away is 570,000 acre-feet of water. Even with the latest precipitation, Folsoms values was unchanged. The trail takes you to the base of Wapama Falls, passing two smaller waterfalls (during spring) on the way. River. After record snowfall in December was followed by a dry January, there are renewed concerns of drought. As it is, at first glance, it looks like shasta is at the top because its 28000 instead of 4552. very nice product overall. This is of particular interest as the self-imposed restrictions deadline is approaching and the federal government may have to step in and mandate restrictions across the 7 states, including California. the Hetch Hetchy Valley to its natural state. Arg. ) or https:// means youve safely connected to the .gov website. And early forecasts show the rest of the wet season is not likely to produce enough precipitation. "It is unknown how much area of the Feather River and Shasta Lake drainages are impacted by hydrophobic soils.". Getting There. O'Shaughnessy Dam is a 430-foot (131 m) high concrete arch-gravity dam in Tuolumne County, California, United States.It impounds the Tuolumne River, forming the Hetch Hetchy Reservoir at the lower end of Hetch Hetchy Valley in Yosemite National Park, about 160 miles (260 km) east of San Francisco. The water system, which includes the landmark Hetch Hetchy Reservoir, is expected to fill this winter, for the first time since 2019, with nearly 1.5 million acre-feet of water. Emissions must be offset by dedicated conservation programs or renewable energy generation such as wind or solar. It could be the 180% of historical average of snowpack, which will be melting in a couple months. By a large measure, damming and flooding Hetch Hetchy is the most significant damage ever allowed in any of our national parks. Located in the northwest portion of Yosemite National Park, Hetch Stay up-to-date with breaking news and upcoming events. Great Job on this site! Updated to include drought zones while tracking water shortage status of your area, plus reservoir levels and a list of restrictions for the Bay Areas largest water districts. But the growing water reserves dont please everyone. For each of the top 8 reservoirs the storage has increased by a total of 217 kaf, however). 1 kaf is the amount of water that would cover 1 acre in one thousand feet of water (or 1000 acres in water in 1 foot of water). As of 5pm on 1/18, the data appears correct (~58k acre feet), but an hour ago it was reading off the chart (3X above what they are allowed to store right now). California reservoir levels: . One gauge in the area has measured 6.12 inches since Oct. 1, which is 899% of normal. Find out more about the system at http://www.sfwater.org, BAWSCA Board Policy Committee Meeting, April 12, 2023 1:30pm. Lock San Francisco and the thousands of suburban . This was helpful to project seasonal trends & storm impacts. Ronald Reagan and George W. Bush. This November, a group of environmental advocates will put forth a ballot measure that would require the San Francisco Public Utilities Commission to develop a plan to drain Hetch Hetchy. Interesting. Flood control agencies (not DWR) have the most say in regard to releases. Water data back to 1930 are available online. This system encompasses more than 1,250 miles of distribution pipelines, as well as 12 in-City reservoirs and eight water tanks with a total storage capacity of approximately 413 million gallons. document.getElementById('globes').contentWindow.location.reload(); Read more about the data team and their work. His recent work has examined the impacts of drought, threats to public lands and wildlife, and the nation's widening rural-urban divide. Its great seeing all the reservoirs in California at or near historical averages. An official website of the United States government. This dashboard provides a bit more detail on the state of each of the reservoirs while also showing an aggregate total. How Fast Are California Reservoirs Filling Up? } Could the reason be that the water from Lake Alma or seems to be used for energy generation, and that there does not seem to be any agricultural or urban use? Why isnt Lake Sonoma included? environmental context. That cant be right. It carried workers and materials for the dam, as well as tourists, postage and other amenities. I am grateful for all that you have done here to open our eyes to what is happening, what has happened, and even what might be on the horizon. Several cities and water agencies that are now part of BAWSCA urged Congress to pass the Raker Act in 1913, the law that allowed federal lands in the Sierra Nevada Mountains, including Hetch Hetchy Valley in Yosemite National Park, to be used to build the water system. A .gov website belongs to an official government organization in the Near the town of La Grange, the river exits the Sierra Nevada foothills and flows through a gently sloping alluvial valley that is incised into Pleistocene alluvial fans. One acre-foot is the equivalent of one acre of land covered in one foot of water. Kellie has held many leadership roles for the Asian American Journalists Association, including most recently a board member for the San Francisco chapter. Francisco Public Utilities Commissions 26 wholesale customers While the long-term voluntary agreement work continues, the SFPUC does not want to wait to restore the Tuolumne Rivers ecosystem. and its snowmelt-fed water supply, water from Hetch Hetchy The group says the recent plethora of water shows that the city could do without Hetch Hetchy Reservoir, by using other storage facilities that have filled and pursuing new projects to capture the surplus. It allowed the water over the spillway to move too fast creating a vacuum between the water and the concrete that pulled the concrete sections out of the spillway. That puts it at 84 percent of where it would usually be usually at this time of year. Shasta, Oroville, Hetch Hetchy and many others were built by damming large rivers. Monitoring location 11277500 is associated with a LAKE, RESERVOIR, IMPOUNDMENT in TUOLUMNE COUNTY, CALIFORNIA. This is wonderful information. That includes the Tuolumne River, which provides water via Hetch Hetchy Reservoir to Bay Area customers. California drought: Charts show where reservoir levels stand after a dry January, Track water shortages and restrictions across Bay Area. The gain came after weather gauges in the area recorded more than 5 inches from one storm. administration attempted to allocate funds to study removing the Jeff, the average changes daily as well. This is my first year watching the levels, so maybe Im missing something. Also, do they provide inflows and outflows for locations? A diverse mix of sources protects us from potential disruptions due to emergencies or natural disasters, provides resiliency during periods of drought, and helps us ensure a long-term, sustainable water supply as we address issues such as climate uncertainty, regulatory changes and population growth. For the higher elevations, more of their water comes directly from snowmelt. Add a button to convert the row heights to log scale. If you are on a mobile device you can tap the reservoir to get that same info. The overall storage is said to have dropped by 57.4 to 56.4 (or 302 kaf). The state's second-largest reservoir, Lake Oroville in Butte County, saw especially dramatic gains with a 30.4-foot rise in the water level and a 182,625-acre-foot increase in the total amount of water, data posted Tuesday from the California Department of Water Resources showed. Similar findings are described in theUC Davis studyRe-Assembling Hetch HetchyandUS Bureau of Reclamation study. Begin at O'Shaughnessy Dam. A wet December produced ample snowfall, which is still sitting at high elevations. This would allow us to see important, but noise-level reservoirs like hetch hetchy. 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