CONSTRUCTION NOTICE: Night Work at Harry Tracy

The contractor will be working extended hours inside the Harry Tracy Water Treatment Plant beginning Monday, June 24th. This swing shift may end as late as 2:00 am, Monday through Friday.

Lights may be visible in the area during the evenings. Our contractor is now constructing the walls for the new 11 million gallon treated water reservoir.

Construction is now 50% complete as Harry Tracy Water Treatment Plant is undergoing major seismic and reliability upgrades through the Water System Improvement Program. Work continues on new filters, retrofitting and installing critical process and electrical equipment, and upgrading piping systems.

We can genuinely say the Hetch Hetchy Water System is more seismically reliable today than it was a year ago. Upon completion of construction, the treatment plant will be able to reliably provide up to 140 million gallons per day (MGD), for up to 60 days, within 24 hours following a major earthquake on the San Andreas Fault.

We are making every effort to minimize construction impacts to surrounding neighborhoods. Please don’t hesitate to call our 24-hour phone line, (866) 973-1476, or email us at peninsula@sfwater.org with questions or concerns.

Upcoming Construction Near Helen Drive

Starting the week of June 10th, the Harry Tracy Water Treatment Plant will conduct work in three phases during 2013 behind Meadows Elementary School on Helen Drive in Millbrae. 

A major water pipeline that brings drinking water from Harry Tracy to the Peninsula is located underground along the hill behind Meadows School. This construction project is a seismic upgrade to the pipeline by “sliplining”: placing a new steel pipe inside the existing pipe.

We are coordinating our work around Meadows School and Happy Hall's Summer Camp drop-off and pick-up schedules for safety and convenience. The work will take place on the hillside and a staging area will be located on the north end of the school parking lot. 

Project Schedule

Phase 1: June 10^th – June 14^th 

Phase 2: July 9^th – July 26^th

Phase 3: September 23^rd – December 15^th

Phases 1 and 2 entail exploratory and preparatory work, while the sliplining will occur during phase 3. Phase 1 will be exploratory work to equip the project engineers with precise mapping and geological data. Work hours will be between 7:00 am and 5:30 pm. 

Phase 2 will include a drill rig and a crane to install support structures needed for phase 3. Phase 3 will be the most intense period of work. 

Construction truck traffic can be expected in all phases of work. Temporary fencing will be placed along the north end of Meadows School’s parking lot for construction access only. We will notify residents and school parents with reminders and more details closer to the work dates.

We aim to minimize construction impacts to your neighborhood and schools.

We apologize in advance for any disturbance or inconvenience and invite you to call our 24-hour phone line at (866) 973-1476 or email us at peninsula@sfwater.org with questions or concerns. 

Project Description 

Our contractor, Kiewit Infrastructure West Co., is working in over 20 areas within the Harry Tracy Plant, part of the Hetch Hetchy Water System Improvement Program. Seismic retrofits and electrical upgrades will allow us to reliably provide up to 140 million gallons of water per day, for 60 days, within 24 hours of a major earthquake. Harry Tracy serves several communities on the Peninsula in addition to San Francisco.

Construction Update for Water Awareness Month!

May is Water Awareness Month! So we're taking the opportunity to explain how we’re improving the way “raw water” from our Peninsula watershed flows through the Crystal Springs Reservoir System to the Harry Tracy Water Treatment Plant (HTWTP), where it is treated before being sent to customers’ taps.


Old outlet structures, such as the one on the left,

are being modified and cut below water level.

Water in the reservoirs is called “raw water,” a generic term used for water resources from nature, e.g. from a local watershed, before purification at a treatment plant.  Local raw water that collects in the Crystal Springs Reservoir, which is comingled with a surplus of Sierra Nevada snowmelt, is pumped through a transmission system into the San Andreas Reservoir. From this reservoir the water is drawn into the HTWTP, which is located nearby.



A crane delivers a steel beam for underwater

construction at Crystal Springs Reservoir



Pipe for new Crystal Springs
Pump Station



San Andreas Rises to Meet Your Needs

Visitors to San Andreas Trail with an astute eye may observe water levels in San Andreas Reservoir rising late this spring as our new Crystal Springs Pump Station is tested during its final stages of construction. Located near Crystal Springs Dam, the new pump station will be able to transport water from Crystal Springs Reservoir to San Andreas Reservoir with 1/3 more capacity and using less power than the old pump station, which was last substantially upgraded in the 1920s. During the testing period this spring, San Andreas Reservoir is expected to rise approximately six feet.

Work at Highway 92 Crossing, Where South to North is Upper to Lower

You’ll also notice construction activities at the south end of Lower Crystal Springs Reservoir just north of the Hwy 92 crossing. This includes seismic improvements to the Upper Crystal Springs Dam Lower Culvert (small bypass tunnel) which conveys water north from the Upper Crystal Springs Reservoir to the Lower Crystal Springs Reservoir. A durable, flexible high density polyethylene (HDPE) liner will be installed within the culvert, which crosses the San Andreas Fault, and a vertical portal will be connected to the culvert upstream of the fault.



Welding at HTWTP



Harry Tracy Water Treatment Plant Upgrades 50% Complete

 Like the Crystal Springs-San Andreas Transmission System, the regional water treatment plant is also undergoing major seismic and capacity upgrades as part of the Water System Improvement Program (WSIP). The Contractor has completed pouring the base for the new 11-million gallon treated water reservoir. Crews continue to work on the addition of new filters, seismic retrofits of critical processing units, and upgrades to electrical and other systems.

We can genuinely say the Hetch Hetchy Water System is more seismically reliable today than it was a year ago. Upon completion of construction, the HTWTP will be able to sustain a capacity of 140 million gallons per day (MGD), for up to 60 days, within 24 hours following a major earthquake on the San Andreas Fault.



Concrete Pour for 11 million gallon Treated Water Reservoir at HTWTP



 


Truck Traffic for Concrete Pours Moved to Wednesday, May 8th

RESCHEDULED: The final date for concrete pours for the base slab of the new treated water reservoir (TWR) at Harry Tracy has been rescheduled to Wednesday, May 8th.

Heavy trucking hours along Crystal Springs Road in San Bruno: 7:00 am to 7:00 pm. Residents may require extra time to enter and exit their driveways.

We are making every effort to minimize construction impacts to surrounding neighborhoods. Please don’t hesitate to call our 24-hour phone line at (866) 973-1476 or email us at peninsula@sfwater.org with questions or concerns. 

Learn more about our upgrades at Harry Tracy Water Treatment Plant on our project website: tinyurl.com/cnpbb9k

UPDATE: Truck Traffic for Concrete Pours May 7th

Concrete pumps and construction crew for concrete placement activity.

Photo by Robin Scheswohl, SFPUC.



We are pleased to report that the concrete pours for the 11 million gallon treated water reservoir (TWR) at Harry Tracy are 75% complete, and that the work has gone faster than expected for each of the first three concrete “placement activities”. The one remaining date for this work is Tuesday, May 7^th.

Heavy trucking hours along Crystal Springs Road in San Bruno: 7:00 am to 7:00 pm. Residents may require extra time to enter and exit their driveways.



Teamwork is required to carefully
place rebar for the TWR walls.
Photo by Katherine DuTiel, SFPUC



A “whirlybird” is used to smooth the
surface of the concrete, rather
than using a trowel by hand.
Photo by Katherine DuTiel, SFPUC



We are making every effort to minimize construction impacts to surrounding neighborhoods. Please don’t hesitate to call our 24-hour phone line at (866) 973-1476 or email us at peninsula@sfwater.org with questions or concerns.  

Learn more about our upgrades at Harry Tracy Water Treatment Plant on our project website: tinyurl.com/cnpbb9k

Concrete pour layout at dusk. Photo by Katherine DuTiel, SFPUC

Tweet Us Your Emergency Preparedness Tips!

April 18 Marks the 107th Anniversary of the Great 1906 Earthquake

The April 18, 1906 earthquake ranks as one of the most significant earthquakes of all time. Beginning at 5:12 a.m., with the epicenter located near San Francisco, the shocks were felt as far north as Oregon and as far south as Los Angeles.

 

As the earthquake anniversary looms, it presents the opportunity to begin a dialogue with your family and community about emergency preparedness in your home or workplace.

This April, we are providing you an incentive to become better prepared as it relates to water. We want you to share a photo of your water-related emergency preparedness tips. Tweet us @WSIPInTheNews or email us at wsip@sfwater.org now until April 30, and let us know what you're doing to be a local water hero by demonstrating (via photo) or sharing your own tips.

Bay Area residents, social media influencers and city agencies who participate will receive a pen and certificate.

 

 

 

We will retweet your tips and publicly tweet you this certificate. All partnering city departments, Twitter fans and residents will receive this certificate and pen by tweeting us your tip or showing how your city, home or office is a local hero.

Tuesday, April 16th: Truck Traffic for 2nd Concrete Pour

The second of four intensive concrete pours will occur at the Harry Tracy Water Treatment Plant on Tuesday, April 16^th from 7 am to 7 pm.

As with last Tuesday, residents on Crystal Springs Road may require extra time to enter and exit their driveways. The project is conducting concrete “placement activities” to create the base slab for the new 11 million gallon treated water reservoir.  This will require a large number of trucks travelling along Crystal Springs Road in San Bruno. Pilot cars will regulate the speed and number of trucks entering and exiting the plant gate. Long work days are necessary to ensure the concrete base slab has adequate time to dry.

We are making every effort to minimize construction impacts to surrounding neighborhoods. Please don’t hesitate to call our 24-hour phone line or email us with questions or concerns.  The dates of two additional concrete placement activities will be posted here on our blog, www.sfwater.org/Peninsula, and will be available by email - peninsula@sfwater.org - and on our 24-hour phone line, (866) 973-1476.

Learn more about our upgrades at Harry Tracy Water Treatment Plant on our project website: tinyurl.com/cnpbb9k