Construction Update: Sections of Sound Fencing to Come Down

Due to rainy conditions, the removal of fencing has been postponed. Fencing will be removed in mid-February.

Because the open trench work for both pipelines in the Right of Way has been completed, the contractor will begin removing sound fencing between Nugget Way and Mission Blvd.

Some fencing close to Mission Blvd. will remain until the completion of the project. This flexible sound fencing has significantly reduced noise and dust out of the neighborhood, and will continue to do so for ongoing work areas.

The sound fencing marked with blue lines will be removed.

 Fencing south of the blue lines, as well as north of Nugget 

Way, will remain.

Construction Update: Articulated Vault Forming Work to Take Place on Saturdays

Regular work will take place between 9 a.m. and 6 p.m. on Saturdays moving forward in order to form elements of an articulated vault. The work will take place underground beneath Mission Blvd near I-680.

If you have questions or concerns, please call our 24-hour answering service at 866-973-1476.
  
Para información en español, por favor llame 866-973-1476

To learn more about the unique articulated vault system, check out this visualization of the system at work:

Construction Update: Work Saturday January 11

Some welding will take place on the
Bay Division 4 pipeline.

On Saturday January 11, testing and construction activities on either side of Mission Blvd. will take place between 9 a.m. and 6 p.m. 

Workers will be welding a pipe element in the Right of Way parallel to Tissiack Way and coating pipe joints with protective material in the northbound Mission Blvd. to northbound I-680 cloverleaf area. The light work will cause minimal noise and disturbances.

If you have questions or concerns, please call our 24-hour answering service at 866-973-1476. 

Milestone: Non-stick Pipes Slipped Beneath I-680

On December 27, we placed the final length of the Bay Division No. 4 water pipeline under I-680 in Fremont. Representatives from the SFPUC, the general contractor and engineering firm came together this week to sign the final 25-foot-long length of pipe.

From L to R: SFPUC Project Manager Bryan Dessaure, Tony Ferencik and
Jim Pelletier of Steve P. Rados, Inc., WSIP Deputy Director of Construction
Alan Johanson and URS Corp. Structural Engineer Changmo Kwon.

In order to slide this new seismically-reinforced pipe into the existing pipeline, URS Corp. proposed an unusual method. Smooth sheets of the material used on non-stick pans, PTFE, were affixed to the inside of the existing pipe and the bottom of the new pipe. These sheets allowed the pipe to be slipped into place without using rollers or damaging the pipe coating. The material will also allow the new pipe to move more freely within the existing pipe during an earthquake so that it won't break.

WSIP Deputy Director of Construction Alan Johanson signs
his name on the final piece of Bay Division Pipeline No. 4
to be sliplined using the new technique.

We will continue installing additional segments of Bay Division Pipeline No. 4 pipeline throughout 2014 using a combination of open trenches and trenchless techniques.

White sheets of PTFE are applied to a pipe segment
 at the Seismic Upgrade of BDPL3&4.

Construction Update: Saturday and Nighttime Work

Work will take place on Saturday, December 21 and Saturday, December 28 between 9 a.m. and 6 p.m. in the SFPUC right of way near the southbound Mission Blvd. to northbound I-680 on-ramp. 

Workers will be welding and testing new lengths of pipeline in the Right of Way area adjacent to Tissiack Way. Vehicles will access the area via Omega Drive and Tissick Way.

Some additional work activities are currently taking place at 2 a.m. daily near the northbound Mission Blvd. to northbound I-680 cloverleaf, and will continue throughout next week with the exception of Christmas day.

Workers are using these early-morning hours to place mortar on new pipe segments and allow it time to dry. During this work, a generator is running to power a work light.

If you have questions or concerns, please call our 24-hour answering service at 866-973-1476.

Para información en español, por favor llame 866-973-1476

DeAndre Washington, Steve P. Rados, Inc., works to secure PTFE material
to the outside of pipe segments prior to sliplining.

Construction Update: Saturday Pipeline Work

A seismically-upgraded length of Bay Division
Pipeline No. 4 is being installed this December.

Work will take place on Saturday, December 14 between 9 a.m. and 6 p.m. in the SFPUC right of way near the Mission Blvd. to northbound I-680 on-ramp.

Workers will excavate and remove elements of the original water system to keep regular weekday construction activities on schedule. No road closure will be necessary and no construction machinery will be moved in or out via residential streets on Saturday.

If you have questions or concerns, please call our 24-hour answering service at 866-973-1476.


Para información en español, por favor llame 866-973-1476

Construction Update: Saturday and Sunday Work

On Saturday, November 23 and Sunday, November 24, construction work will take place in the SFPUC right of way near the Mission Blvd. to I-680 on-ramp between 9 a.m. and 6 p.m.

Workers will be excavating and removing elements of the original water system to ensure that construction can resume on-schedule next week.

Construction activities will continue next week, Monday, November 25 through Wednesday, November 27, and will be on hold Thursday, November 28 and Friday, November 29 for the Thanksgiving holiday.

The project team wishes you a safe and happy holiday.

If you have questions or concerns, please call our 24-hour answering service at 866-973-1476.

Para información en español, por favor llame 866-973-1476