Showing posts with label San Francisco Public Utilities Commission. Show all posts
Showing posts with label San Francisco Public Utilities Commission. Show all posts

Friday, April 5, 2019

Join Us at the Wildflower Festival April 14th!


The flowers are blooming all over Sunol Valley and the East Bay. That's right, it's time for the Wildflower Festival at the Sunol Regional Wilderness.


Hosted by the East Bay Regional Park District, the Wildflower Festival features:
  • Guided hikes for all ability levels
  • Activity stations
  • Educational Booths
  • Free Make and Take Crafts
  • Live Music
  • And so much more!


Sunday, April 14, 2019, 11 a.m. to 4 p.m. 

Sunol Regional Wilderness, 1895 Geary Road, Sunol

Overflow parking available along Calaveras Road.

For more information, check out the East Bay Regional Park District’s website, or call
510-544-3249.

Visit us at the SFPUC booth. Make crafts and test your watershed knowledge for prizes!

 We hope to you there!



Friday, October 26, 2018

Love Your Local Stilling Basin

We have written a great deal about the spillway at the Calaveras Dam Replacement Project. Completed in 2016, this spillway is the width of a six lane freeway, and the height of a three-story building. The spillway's job is to protect Calaveras Dam by allowing water from Calaveras Reservoir to flow safely around, and away from, the dam in extreme high water events.

We have neglected to highlight an important component of a spillway - the stilling basin. Today, we'd like to generate a little love for stilling basins.  



A stilling basin is a structure that dissipates the energy of the water rushing down the spillway. Without a stilling basin, water coming out of the spillway could scour out the foundation of the dam, the base of the spillway, and nearby creek beds. In short, the stilling basin is a sort of bodyguard for the dam.

Stilling basins come in a variety of types, but generally fall into two categories: a straight drop for lower elevations, or an inclined chute. The stilling basin at the new Calaveras Dam is an example of the latter category. To be specific, it is a United States Bureau of Reclamation (USBR) Type II stilling basin.  Our stilling basin is approximately 200 feet long, 45 feet high and 80 feet wide.    


Water flowing down the new spillway of the new Calaveras Dam will drop 200 feet in elevation before it reaches the stilling basin at the bottom.The stilling basin creates a hydraulic jump to slow down the high velocity water before it slowly, and safely, discharges into Calaveras Creek.

A view of the new stilling basin at the Calaveras Dam Replacement Project

So, let's hear it for the humble stilling basin!

See you around the Valley! 

Thursday, September 27, 2018

Calaveras Road Closure Extended through November 2, 2018



The Closure of Calaveras Road to through traffic between Milpitas and Sunol has been extended from September 30, 2018 to Friday, November 2, 2018.

The road will reopen to all traffic, weekdays, weekends, and holidays starting Saturday, November 3, 2018.

Why:

The SFPUC has been working with the appropriate county agencies to secure final approval for renewed public access to the road after a portion of the road was built by the SFPUC to replace a portion undermined by a landslide.

Background:

We have been working since 2011 to replace the 93 year-old Calaveras Dam to increase the reliability of the Hetch Hetchy Regional Water System, which serves 2.7 million people in four Bay Area counties.

The closure of Calaveras Road began in July 2016 to protect public safety on the extremely narrow portions of Calaveras Road while large trucks utilized the road for construction.  

Road Closure Details:

Where: Calaveras Road just south of Geary Road (entrance to Sunol Regional Wilderness) to Oakridge Road near the Alameda /Santa Clara County line.

When: July, 2016 through November 2, 2018. The Road will be open on weekdays, weekends, and holidays starting Saturday, November 3, 2018.

For more information, visit sfwater.org/calaverasroad

Thank you for your continued patience. We apologize for the inconvenience.

Friday, August 31, 2018

Photo Friday from Sunol Long Term Improvements

Happy Photo Friday!

The team working on our Sunol Long Term Improvements Project has been tasked with constructing a new corporation yard and offices to house SFPUC Water Supply and Treatment and Natural Resources staff near Sunol. These new facilities replace the old corporation yard and buildings, which were aging and in need of upgrading.  The teams housed here operate the East Bay water system as well as monitor the rights of way and 35,000 acres of SFPUC-owned watershed lands.

We dedicate this photo Friday to the tremendous progress the team has made this year.



Here is a view of the new administration building.

Workers are installing a new bioswale to catch and absorb water run off at the site.








And, here is a very modern looking canopy for equipment to be installed outside of the shop.

The Sunol Long Term Improvement Project is 75% complete. The project is expected to be completed by the end of 2018. 

During construction, the Sunol Water Temple will remain closed to the general public.

We hope you have a great Labor Day weekend! See you around the Valley!

Thursday, August 23, 2018

Thank you, Jordan Erickson

Meet Jordan Erickson. He is a native of Maple Grove, Minnesota and was with us this summer as a student intern. Jordan is currently studying civil engineering at Iowa State University. During the summer. He was an integral part of the Sunol Yard Long Term Improvement Project team. Last week was his last week on the job.



He said that working as an intern for the SFPUC gave him a better perspective on the type of work he'll be doing in the future. One the most valuable things that it taught him was the importance of communication between the contractor and the owner.

When he is not busy working, Jordan enjoys playing sports and hanging out with his friends. We wish Jordan another successful year at Iowa State University.

Jordan is one of dozens of summer interns we at the SFPUC are delighted to host each summer. They are all fantastic, like Jordan. It is extremely important to help support the growth of future leaders in our industry.

The entire staff at the Sunol Yard Long Term Improvement Project would like to thank Jordan for all of his hard work.

See you around the Valley!





Friday, August 10, 2018

Meet the CAT-773

Our work at the Calaveras Dam Replacement Project wouldn’t be possible without the help of heavy equipment. Heavy equipment helps our team complete big tasks like moving 12 million cubic yards of rock and earth. Because of the size and scope of our project, we have the privilege of working with some big and cool heavy equipment on our job site.

On any given day we could have approximately 20 pieces of heavy equipment operating. Today I would like to introduce you to the CAT-773



Here is a picture of some of our equipment.


With a full load it can carry 100 tons of dirt or 200,000 pounds of material. This machine can climb steep roads and is very comfortable for the operator. It has a 12-cylinder engine that can reach 42 miles an hour.


















John Rocca, Field Operations Manager in front of a CAT-773.

It’s a real life Tonka truck. We have a total of 10 CAT-773’s on site hauling material and getting the job done.

 This equipment belongs to our Joint Venture (Dragados, Sukut and Flatiron), our partners on this project.

See you around the Valley!

Friday, July 27, 2018

Meet Glen Gorski, Lead Quality Assurance Inspector


















As the Calaveras Dam Replacement Project starts to wind down, we'd like to focus on some of the key people that have played a crucial role in the construction of the replacement Dam. 

This week we'd like to introduce you to Glen Gorski. He is the Lead Quality Assurance Inspector for the project. A big part of his job is to ensure that the project is being built correctly. 

He and his team are tasked with observing and reporting that quality control measures are effective, so that the entire dam project is being constructed to the expectation of the San Francisco Public Utilities Commission.  He is a wealth of information and insight and he knows every detail of the dam's construction. If you have a question, Glen will always have the correct answer.
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Here is Glen with his team.


Glen has over 40 years of experience in the construction industry. He has quite a resume with two Bachelor of Science degrees in Engineering and Geology from the University of Notre Dame and one Masters of Science in Civil Engineering from Notre Dame and a Masters of Science in Business Administration from the University of Indiana. He started his career as a geotechnical engineer for the Scilts Graves & Associates. 


He says that the biggest lesson learned in his career is the importance of "paying attention to the contract." Paying attention to the contract will save you plenty of headaches in the long run. Out of the plethora of projects he's worked on throughout his career he says that the most interesting one is his work at Snoqualmie Falls where he was refurbishing a hydro electric power plant built in 1895.

When he is not working at the Calaveras Dam Replacement Project, you can find him volunteering at his local Community Emergency Response Team (CERT) group, golfing, leading a Boy Scout troop, or spending time with his grandchildren.



Glen enjoying the great outdoors.


The team at the Calaveras Dam Replacement Project would like to thank Glen for his commitment to excellence. 


See you around the valley!

Thursday, June 28, 2018

Meet Manny Yeboah

Meet Emmanuel (Manny) Yeboah. Manny has been an employee of the San Francisco Public Utilities Commission (SFPUC) for over 10 years. He started his career with the SFPUC's Bureau of Environmental Management preparing categorical exemptions and mitigation monitoring reports. Currently, Manny is an Office Engineer for the Fish Passage/ACDD project and a Project Construction Manager for the Sunol Nursery Project. As a Project Construction Manager, Manny ensures that the project is running on time, on budget and that the Contractor’s operations comply with the contract specifications, drawings and permits.

He and his team are responsible for constructing the first nursery project of its kind for SFPUC. The Sunol Nursery Project is a $2.2 million dollar project located within the Sunol Temple yard. The new Sunol Nursery encompasses 1-acre and includes construction of new water storage tanks, garage, office building, shade house and a state of the art greenhouse structure with a cooling pad system. The purpose of this project is to propagate plants for the Alameda Creek Watershed Center, Sunol Yard and other SFPUC projects. The project is scheduled to be completed by October 2018.

Manny enjoys his role as a Project Construction Manager. When asked about his role as a Project Construction Manager he stated, "It’s a huge accomplishment to be in this position, I’ve worked hard throughout the years and now my goals are coming into fruition with me running an innovative project for the SFPUC."

Manny is no stranger to construction projects. He has worked as an office engineer for over 6 years and has a degree in Urban Studies Regional Planning from Cal State Northridge. When he is not working, Manny enjoys going to new restaurants, working out, and spending time with family.

If you ever see him around the valley, don't hesitate to say hello.

Friday, June 15, 2018

What's the Big Deal about an Approach Channel?

We are building a new earth and rock fill Calaveras Dam right next to the existing 93 year-old dam (directly downstream of the existing dam as they say in the dam industry.)  As many of our previous blog posts have been tracking, we have been busy building the new dam, foot by foot, from the bottom up like a layer cake. A very large layer cake.

Our Calaveras cake is high enough now to allow us to begin to excavate out the approach channel to the new dam this week.

"What is an approach channel?" you ask. An approach channel is a breaching of an existing dam in order for its adjacent reservoir to come in contact with it. We will remove a portion of the existing dam (500,000 cubic yards of it to be exact) to allow reservoir water to eventually fill in the space between the old dam and the new dam. The old dam will look like a peninsula in the reservoir when the project is done. 

"Why not remove the old dam in its entirety?" We don't have to. Complete removal would be expensive, environmentally difficult, and not necessary to operate the reservoir. 

The start of excavation of the approach channel means that we have reached a high enough elevation with the new dam to safely begin carving out a huge chunk of the existing dam. It's a coming of age for the new dam, if you will. A significant milestone. 

Here is what the approach channel looked like at the beginning of last week.



And, here is what it looks like this week.




The channel will be lined with large rocks called rip rap to protect it from erosion so the channel will be ready when we start to refill the reservoir this fall.


Approach channels may not seem exciting at first glance, but we at the SFPUC are thrilled!

See you around the valley!

Friday, June 8, 2018

Photo Friday at the Bay Division Pipelines

Happy Photo Friday!

We've been neglecting the Bay Division Pipelines in our East Bay Photo Series. So we thought we'd celebrate this Photo Friday with a couple of construction shots - from 1966.

Five Bay Division Pipelines transmit Hetch Hetchy and East Bay supplies through our two Irvington Tunnels to our 2.7 million Bay Area Customers.  Bay Division Pipelines 1,2, and the newest addition - 5 connect to a brand new water tunnel under San Francisco Bay on their way to the Peninsula.

Pipelines 3 and 4 pass through the South Bay overland on their way to the Peninsula. 




As you can tell, these are large pipelines. They are also crucial to our water transmission system.


We can't blame those kids. We think they're pretty cool, too!

See you around the Valley!


Friday, May 25, 2018

Memorial Day 2018












In observance of Memorial Day, our construction teams at the Calaveras Dam Replacement Project, Fish Passage Facilities within the Alameda Creek Watershed (within EBRPD's Sunol Regional Wilderness) and the Sunol Valley Long Term Improvements (Water Temple) will not be working on Monday, May 30th.

Here is a photo of one of our D4 Dozer's working on the dam’s core at the Calaveras Dam Replacement Project.



We hope all of you have a safe and wonderful Memorial Day weekend.

See you around the valley!

Friday, May 18, 2018

Happy Infrastructure Week 2018

The Week of May 14 to May 21st is national Infrastructure Week! This is the week where public agencies across the nation highlight the importance of our nation’s infrastructure, and the need to maintain it.

At the San Francisco Public Utilities Commission, our ratepayers had the foresight more than 10 years ago to allow us to pass the $4.8 billion Water System Improvement Program (WSIP). The program has 87 projects, spanning seven counties, to repair, replace, and seismically upgrade aging portions of the Hetch Hetchy Regional Water System. To date the program is more than 90% complete.

A tremendous amount of work was done in the Sunol Valley to ensure a seismically reliable water supply for our Bay Area customers.  The Calaveras Fault runs right through the Sunol Valley. The Calaveras Dam Replacement Project is the largest WSIP Project in construction, but there have been many others. Here are the highlights:  





Alameda Siphon #4. A high tech pipeline crossing of the Calaveras Fault designed to survive an earthquake. Completed 2013.

















New Irvington Tunnel. A new seismically designed tunnel to connect the new Siphon with new pipelines in Fremont. Tunnel brought into service in 2015.













Upgrades to our Sunol Valley Water Treatment Plant to enable the plant to provide minimum demand to all of our 2.7 million customers on its own for up to 60 days. Completed 2015.
















A complete new Bay Division Pipeline #5 to connect the New Irvington Tunnel to a new Bay Tunnel and the Peninsula. Completed 2016.












We've been posting videos on Facebook all week to highlight the SFPUC's efforts to upgrade your infrastructure. And at Twitter: #TimetoBuild. See the Facebook posts  here.  

See you around the Valley!

Friday, May 11, 2018

Photo Friday - Lupine at Calaveras Dam

Happy Photo Friday from the Calaveras Dam Replacement Project!

The hillsides in the Sunol Valley are still green this time of year, and wildflowers are blooming, including at the Calaveras Dam Replacement Project.




Robin Scheswohl, our fabulous SFPUC photographer, captured this beautiful photo. You can see the new dam being constructed in the background and blue lupine in the forefront.

Construction of the dam itself is expected to be completed this year, with site restoration to follow.


See you around the Valley!


Friday, September 15, 2017

Meet Sunol Valley's Natural Garbage Collectors


This week we wanted to highlight some special local inhabitants - turkey vultures.  If you drive anywhere in the Sunol Valley, you will almost always spot a committee of vultures waiting to see what their next meal will be. 



Turkey vultures, like this one spotted near Calaveras Reservoir, like to roost in bare trees to keep an eye (and nose) out for their next meal.

Turkey vultures, also known as turkey buzzards, are the most widespread species of vulture in the New World. They are so named because of their resemblance to the male wild turkey. Their range spreads from Canada all the way to the southernmost tip of South America. We call them nature’s garbage collectors because they feed almost exclusively on carrion and perform a crucial natural function of picking clean disease carrying carcasses.

Vultures are probably one of the most misunderstood birds in the animal kingdom. Here are some fun facts about these creatures:

  • Turkey vultures have one of the best senses of smell in the animal kingdom.
  • It's a misconception that they actually prefer their food rotten.  However, vultures do have a cool adaptation; their stomach acid is almost comparable to battery acid.
  • Nothing goes to waste with a vulture. They even make good use of semi-digested and digested food.



Photo courtesy of WikiCommons



Although few people would call them cute, they do perform a crucial role in natural areas like the Sunol Valley. 

See you around the valley!



Friday, September 8, 2017

The Building Blocks of the Replacement Calaveras Dam

If you are new to the world of dam construction, you might wonder what types of materials are used in building one.  Today’s blog will focus on what types of materials we are using to construct the new Calaveras Dam. Calaveras Dam is an earth embankment dam.  Earth embankment dams tend to be constructed of all types of geologic materials.



Calaveras Dam, July 2017
The picture above was taken recently; from it you can visually see the different materials. Let’s start with the middle and the most important material used in our dam, the core. 


The Core of Calaveras Dam

Zone 1 & 1A—aka…the Core
The core is made up of clay.  Clay is very dense and less permeable than most materials.  Our new dam will have a large core, which will help ensure that the dam withstands a 7.2 magnitude earthquake.  The clay used in our dam has been ‘borrowed’ from the south end of Calaveras Reservoir.

The core is taking shape.


Zone 1A- Core’s foundation
At the bottom of the core, you will find Zone 1A material. This clay is plastic, pliable clay, or another words, clay that has a Play-dohtm like consistency.   Zone 1A material is placed on the foundation’s bedrock and acts as a seal against water flow beneath the dam.

The core is the most important element of the dam and therefore must be protected.  We protect our core by using filters in both the upstream (reservoir side) and the downstream (dry side) of the dam to control the seepage of water and remove it safely from the Dam.

Zone 2 and 2A- Sand
Upstream zones are made of sand  (Zone 2A) and large gravel (Zone 5A)The downstream filters or chimneys are made of sand (Zone 2) and pea gravel (Zone 3).

Zone 5-Rock Fill
Further protection for both the core and filters is provided by rockfill shells. The upstream shell consists of hard durable rock because it will be submerged in the reservoir, Zone 5 material.  This material consists of metamorphic rock known as blue schist.

The downstream shell (Zone 4) consists of onsite material from a geologic formation known as Temblor Sandstone.  While this is a sedimentary rock, it tends to degrade into a gravelly, sandy soil and is best suited for drier conditions than the upstream shell.


Zone 6- Rip Rap
Wave action in the reservoir due to wind can erode most earthen materials.  Large durable rocks are placed on the slopes of the dam at the waterline to prevent this erosion. This is Zone 6 also known as rip rap.


Image courtesy of www.fhwa.dot.gov



See you around the valley!


Friday, August 18, 2017

Photo Friday in Sunol Valley


This week we wanted to share a snapshot of construction underway at the Fish Passage Facilities in the Alameda Creek Watershed located adjacent to the East Bay Regional Park District's Sunol Regional Wilderness.

The photo below shows the construction of the intake structure were the fish screens are being constructed.  This particular intake structure will have a total of 4 fish screens (high tech contraptions that will prevent fish from being drawn into the intake structure).




The goal of the project is to provide for safe passage of fish around the Alameda Creek Diversion Dam to support the restoration of Steelhead trout to the Alameda Creek Watershed. 

This project is part of the San Francisco Public Utilities Commission's $4.8 billion Water System Improvement Program to repair, replace, and seismically upgrade portion of the Hetch Hetchy Regional Water System.

Construction is expected to be complete in fall 2018.

Happy Friday! 

Thursday, August 10, 2017

National Water Quality Month





August is National Water Quality Month! Your drinking water comes from a watershed. And if you are a customer of the San Francisco Public Utilities Commission (SFPUC) or one of our 27 wholesale customers in four Bay Area counties, your drinking water comes from three watersheds: the Tuolumne River Watershed near Yosemite National Park, the Alameda Creek Watershed in the East Bay, and the Crystal Springs Watershed on the Peninsula.

By protecting and preserving the lands that produce our drinking water, we not only support rare and endangered wildlife, we also provide the highest possible quality water to our customers.

In honor of National Water Quality month, we’d like to take this opportunity to remind ourselves how we all can help protect our local watersheds to protect the quality of our water.



The SFPUC owns 35,000 acres of watershed lands in the Alameda Creek Watershed. They are home to critters, like the Western Pond Turtle.

As part of National Water Quality month awareness, there are small things that you can do in your everyday life to help keep and protect water quality. Here are some helpful tips:
  • Use a commercial car wash — cleaning your car at home flushes dangerous chemicals down the storm drain and directly into our lakes and streams
  • Pick up after your dog
  • Dispose of used motor oil properly - one quart of motor oil can contaminate more than 250,000 gallons of water
  • Help pick up litter on the streets that could end up going down the storm drain use detergents that are phosphate-free 
  • Join in a beach, stream, or wetlands cleanup project. Look for local projects in your area.
By doing these simple things you will be contributing to protecting your watershed for future generations.

Thank you and Happy National Water Quality Month!

Friday, June 30, 2017

Building Dams in Earthquake Regions, Part II

As Californians, we live with the possibility of earthquakes.  Here at the Calaveras Dam Replacement Project we are in the middle of constructing a new dam that will be strengthened to resist seismic forces and withstand a 7.25 magnitude earthquake.  Dam technology has evolved since we built the original dam in 1925. 

If you missed our first blog about the technology used in construction of the original dam, see it here. The methods used in constructing the new Replacement Calaveras Dam are very different. Here’s why.

New Construction Methods

We are using state of the art dam technology and engineering to enhance the safety of this large civil structure.

A Sound Foundation

Our director Dan Wade says that building an earth and rock fill dam is a lot like painting a house. You need to strip all the old paint off the walls to get to good wood. You need to prime the surface so it will hold the new paint. The very last thing you do is paint.  We have been doing the preparation for the building of our dam for 6 years. We have moved more than 7 million cubic yards of soil to reach competent rock as a solid foundation of the new dam. 

A cross section of the replacement dam showing the different zones. Green is upstream (the reservoir side), light yellow is downstream, the clay core is in the center, and the narrow yellow strips are the drains and filters.


Controlling Water Seepage

We have drilled the grout curtains (see our previous blog about curtains and blankets) extending more than 100 feet below the dam’s foundation to control water seepage. We have done even more work to treat the foundation of the core of the dam, which is made of impervious clay. Remember the drain blanket? That also is constructed on the downstream face (the dry side away from the reservoir) to control water. The new dam will have various filter zones and drain zones on both sides of the dam to control the movement of water so it does not compromise the structural integrity of the dam.

Resisting Seismic Forces

A wide core will help the new dam be robust. In addition, the materials placed in this dam will be compacted using heavy machinery.

Here's the dam being constructed as it looks now. The different zones are clearly visible.

The complete removal of unstable rock and soil to form a solid foundation, careful design and placement of filters and drains within the dam to control water, extensive grouting and sealing of the foundation of the dam, a robust core and heavy compaction of all materials enable the replacement Calaveras Dam to withstand seismic forces and serve our customers for generations to come.

Monitor our progress at building the dam here at sfwater.org/sunolvalley.


See you around the Valley! 

Friday, June 23, 2017

Building Dams in Earthquake Regions Part I

The First Two Calaveras Dams

As Californians, we live with the possibility of earthquakes.  Here at the Calaveras Dam Replacement Project, we are constructing a new earth and rock-fill dam that will be strengthened to resist the seismic forces and withstand a 7.25 magnitude earthquake. 

Dam technology has evolved since we completed the original dam in 1925. In a two-part series, we’re going to take a look at how our predecessors built the previous Calaveras Dam, which has served us well for 90 years, and what new technologies and construction methods we are using for the new dam to be ready for the next big quake.


The original Calaveras Dam (construction spanned 1913 to 1918) was constructed using the so-called hydraulic fill method.  Basically, to create the impermeable 'puddle core', fine soils were washed off the surrounding slopes with high pressure water cannons, and this slurry was collected between two 'training' dikes on both sides of the dam’s core.

During gold mining in the Sierra foothills, this method was used to build much smaller dams to impound water for hydraulic mining. But scaling this method up to this size had some serious problems. 

The first Calaveras Dam, nearly complete in 1918. It was the largest earthen dam in the world at the time.

The process did not allow excess water in the puddle core to dissipate, and this extra weight exceeded the ability of the upstream shell to retain it, and it failed as it neared completion.



The second (current) dam was completed in 1925 and was built on the remains of the first dam. For the current dam, soil was compacted in the core, primarily by running heavily-loaded wagons over it (pulled by mules). In this photo you can see the mule trains compacting the core.



The second Calaveras Dam, shown in 1926.

However, one problem that wasn't addressed during the construction of the current dam was the fact that alluvial soils (creek sediments including silt, sand, and gravel) were not removed before the first dam was constructed. Such saturated, loose sediments, which are removed during the construction of a modern dam, have the potential to 'liquefy' as they are shaken during an earthquake. 

It was for this reason that we at the SFPUC elected to build a completely new dam next to the existing dam.  And this time, things were different. 

Stay tuned to learn more!




Friday, June 16, 2017

Bald Eagle Photo Friday at San Antonio Reservoir

Happy Photo Friday!

This week’s pick comes courtesy of Kevin and Pat from our Natural Resources and Lands Management staff.

We have spent a lot of time writing about the nesting pairs of bald eagles who reside at Calaveras Reservoir and the pair near our restoration sites near San Antonio Reservoir in the SFPUC-owned Alameda Creek Watershed. But we’d like to introduce you to a more recent arrival to the San Antonio Reservoir area.   


This pair has made its home closer to our Turner Dam at San Antonio Reservoir.  Since it is the time of year when our pairs are on their nests taking care of chicks, our staff spotted two eaglets in their nest.

Once bald eagles find a nesting location they like, they tend to stay in the area. Which is why these bald eagles and our Natural Resources and Lands Management staff have gotten to know one another.  Our staff monitors the well being of these birds on a weekly basis. They all have been trained on bald eagle monitoring and behavior. Knowing these particular birds and bald eagle behavior enables our Natural Resources staff to know quickly if the birds seem ‘off’ because they have been disturbed by something.  



These little ones will fledge (develop the ability to fly) anywhere from 8 to 14 weeks of age. For now, they’re being fed a consistent diet of fish found in the reservoirs and creeks within the Alameda Watershed.

Healthy watersheds provide high quality water and also provide a safe haven for many amazing plants and animals. We consider it an honor and a privilege to look after these watershed lands, and all who live there, too.

Have a wonderful weekend, everyone!