Tuesday, October 27, 2015

Creepy Crawlies at Calaveras Dam


Happy Halloween from the Calaveras Dam Replacement Project! 

The Sunol Valley is naturally decorated for Halloween thanks to the “spooky” tarantulas coming out this time of year.  That’s right.  It’s tarantula season and just in time for Halloween. 

The California brown tarantula (Aphonopelma sp.) heads out of its burrow at Calaveras Dam in search of romance.

Turns out that after five plus years of living alone (maturing in a burrow), male tarantulas head out in the fall to find a female mate. 

After mating, the males tend to die a few months later.  By stark contrast, females live for 20 plus years in silk-lined burrows.   Talk about luxury!

And how many babies do these productive moms create?  The number ranges from 75 to hundreds per year.

Our goal is to keep these native species safe from harm while we build the replacement Calaveras Dam.  On a daily basis, our environmental inspectors work closely with construction staff to identify any wildlife on the move through the site. 

Even the spooky ones!  

See you around the Valley!

Friday, October 16, 2015

Sunol's Own Shine at the Calaveras Dam Replacement Project


The $4.8 billion Water System Improvement Program has generated millions of craft hours and thousands of job opportunities for residents of the Bay Area counties served by the San Francisco Public Utilities Commission (SFPUC).

The SFPUC Infrastructure Division’s Workforce and Economic Program Services Bureau works closely with participating contractors to support their efforts to employ local journey and apprentice workers on their projects. 

To date, 48% of all workers are residents of the agency’s 7-county service territory, which includes Bay Area residents who receive SFPUC services or who are impacted as a result of WSIP construction activity. Furthermore, 71% of all apprentice hours have been worked by SFPUC service territory resident apprentices.

On the Calaveras Dam Replacement Project, for example, three residents of Sunol have found successful employment and professional development opportunities as a result of this once-in-a-lifetime project. Two residents, Mr. Anthony DeValle and Mr. Travis Hoxie, have recently completed their respective apprenticeship programs, obtaining milestones such as advanced certifications and more than 3600 hours of on the job training. Mr. Justin Gronley, also of Sunol, is nearing completion of his apprenticeship training, and will soon “journey out”.

Mr. DeValle expressed that, for him, the best part of achieving journeyman status is the opportunity to reach back, “Helping to teach the younger kids by sharing lessons I’ve learned from the more experienced workers.”

Mr. Hoxie agrees that “passing it on” is a major benefit. Travis also liked “gaining more education and developing one’s professional skills necessary to make it in the construction industry.” 

Some of the skills and experience they highlighted while working on the Calaveras Project were: environmental remediation, electrical work, tree cutting, concrete work, dirt work, asphalt, power tools, carpentry, iron work, and traffic control. They even learned complex skills such as rappelling as part of the complex structural work.

Mr. Gronley is especially grateful that the Calaveras project’s timing and location has benefited him. “It’s nice to be able to succeed right out of high school, participate on this project, and still be close to home.”

The Calaveras Dam Replacement Project team would like to congratulate these hard-working individuals on their recent success and express their gratitude for their efforts, and the efforts of all of the workers and staff who are working on this integral project of the WSIP program. 





Calaveras Dam's newest journeymen from Left to Right:

Anthony DeValle; Travis Hoxie;  Justin Gronley

Congratulations!

Tuesday, September 22, 2015

Sunol AgPark Harvest Festival Sunday, September 27, 2015

It may still feel like summer in the Sunol Valley, but, believe it or not, October is right around the corner!

Come join us to kick start the fall season at the Third Annual Sunol AgPark Harvest Festival.

Hosted by SAGE, the Sunol AgPark Harvest Festival features:
  • Farm Fresh produce
  • Food
  • Live music
  • Pumpkin patch
  • Children's crafts and games
  • And much more...


Plus drinking water provided by yours truly....

So bring your refillable water bottle, some sunscreen and your family and come on down!

Sunol AgPark Harvest Festival
Sunday, September 27th, 10 am – 3 pm
505 Paloma Way, Sunol, CA

Learn more at SAGE's Website. 


We hope to see you there!

Image result for pumpkin patch

Thursday, September 17, 2015

Star Walk: Sunol Glen School Walk-A-Thon is On!





This Friday, September 18th  is Sunol Glen School’s 23rd Annual Walk-a-Thon!


It is the Sunol Glen Community Club’s largest fundraiser.

We at the SFPUC are pleased and proud to be out there again this year to provide drinking water and moral support to the student participants.

How can you show your support, you ask? 

Visit www.sunolglencc.com to learn more!


Go Eagles!!



May the Force Be With You!

Wednesday, September 9, 2015

Heat and High Fire Danger!

You do not need us to tell you that the weather has been unseasonably hot. Daytime temperatures are 10 to 20 degrees above seasonal averages throughout the Bay Area, according to the National Weather Service.  

Because of the high heat and low moisture, our Natural Resources and Lands Management Division has issued a high fire alert for the Peninsula /Alameda Watershed lands that we own. 

If you are driving in the area, please remember:

  • Do not pull your car over to the side of the road in the grass. The heat from the underside of your car could quickly spark a grassfire. This is all too common.
  • Please do not smoke, hold lit cigarettes out the window, or dispose of cigarette butts onto the side of the road.
  • Please do not operate machinery in dry grasses that might generate sparks, including mowers.

For tips on how to stay safe in this heat, please visit the National Weather Service’s website: http://www.nws.noaa.gov/om/heat/index.shtml.

Please stay hydrated and stay cool out there!


Please do not operate machinery that might generate sparks, including mowers.

Friday, July 10, 2015

One huge pipe at Calaveras Dam


As we busily work towards construction of a replacement Calaveras Dam, there are many fundamental issues we have to address. For example, given that the existing Calaveras Dam will be left in place when we are done, how will we be able to transport water out of the reservoir when the new dam is built?

Answer: We are building a large pipe (more than 7 feet in diameter) that will be completely buried in the new dam that connects directly to the outlet structure already in place in the existing dam.
This pipe will transport our drinking water supply from the Calaveras Reservoir to the Sunol Valley Water Treatment Plant and then on to our 2.6 million Bay Area customers when supplies are needed.
To date, our crews have installed 500 feet of the new steel pipe, welded  the joints, and started building the formwork for reinforced concrete encasement  around the entire pipeline to protect it. The pipeline and encasement  has been designed to withstand the force of being buried under 180 feet of earth embankment as well as the force of any seismic activity from the nearby Calaveras Fault. The team plans to connect the new 78 inch pipe to the existing pipes within the existing dam in Fall 2016. 

Seems a shame to put all this work into something that will be completely buried under more than 3.5 million cubic yards of earth and rock. But, thanks to these careful efforts, customers will be able to drink Calaveras Reservoir water, even after an earthquake.
The new pipe is shown here in orange on the layout, connecting to existing pipes in green.  The old pipeline in black is being abandoned to excavate the foundation for the new dam.

Friday, June 19, 2015

A Snapshot of our Spillway Chute and Stilling Basin Today


Spillways are important safety features on any dam. They allow for the safe discharge of high water in a reservoir around a dam.  And the new spillway at the Calaveras Dam Replacement Project is no different.

Work began on our spillway in March 2014. A total of 40,000 cubic yards of concrete, equivalent to one football field filled six feet deep, will be used to build the structure. All of the concrete is being supplied by our on-site concrete batch plant. The concrete is placed into the spillway in sections, or slabs. This spillway requires a total of 170 slabs, and we only have 18 more to go.

The spillway chute is 60 feet wide, equivalent to a five lanes of a highway. The slabs are strengthened with reinforcing steel bars and the entire structure is anchored to the bedrock to resist movement during an earthquake. 

The quality of the concrete used in the structure is key. It has to be kept at a cool temperature while it cures in order to prevent cracking. Sunol Valley in summer is anything but cool. That means our crews often begin cement pours at 2 o'clock in the early morning, the coolest time of the day.

The spillway is expected to be completed later this year. This will be a major milestone for the project to complete this important feature of the dam.