Monday, August 18, 2014

Overnight work and Lane Closure Scheduled at Mission Boulevard and I-680

On Friday, August 22 beginning at midnight to 5 a.m. construction crews will be working overnight to shift the I-680 northbound on-ramp at the eastbound lanes of Mission Boulevard back to its original position. During these work hours, the northbound on-ramp and right-hand eastbound lane at Mission Boulevard and I-680 will be closed. When work is complete, traffic will be rerouted to the permanent on-ramp.

Why:   Workers are replacing and retrofitting large pipelines under the current I-680 northbound on-ramp to ensure the region has a reliable water supply following an earthquake. The construction work taking place at the original on-ramp is now complete, allowing the northbound on-ramp to be restored to its original position.

When: Friday, August 22, Midnight to 5 a.m. (Thursday night to Friday morning)
         
Where: Mission Boulevard at I-680 in Fremont

Ramp Closure Detour: Trucks will be rerouted north on Mission Boulevard to Durham Road and I-680. All other traffic heading east on Mission Boulevard will be directed to make a u-turn at Paseo Parkway. Once heading west, drivers can use the northbound on-ramp on the west side of Mission Boulevard.


The northbound on-ramp at Mission Boulevard and I-680 will be shifted back to its original position.



The temporary northbound on-ramp at Mission Boulevard and I-680 in Fremont.

Thursday, July 3, 2014

Wishing You a Happy Fourth of July

On behalf of the San Francisco Public Utilities Commission and the Bay Division Pipelines Nos. 3 & 4 (BDPL3&4) project team and construction crew, we want to wish you a Happy Fourth of July. Construction work will not take place over the holiday weekend.

As we celebrate our country's independence, our team is also celebrating another success. This week, the BDPL3&4 project garnered the top story in Engineering News-Record. The magazine highlights the cutting-edge slip joint installation to help the pipe compress, move, and even rotate without rupturing during a major earthquake. The goal is to ensure that the 2.6 million people relying on the Hetch Hetchy Regional Water System, which includes BDPL3&4, can receive potable drinking water within 24 hours of a major earthquake.

To read the article in its entirety, click here

The highly innovative slip joint on the cover of Engineering News-Record



Watch the installation of the one-of-a-kind seismic slip joint

Seismic Slip Joint

Friday, June 20, 2014

The WSIP Turns 10!


This year the Water System Improvement Program (WSIP) turns 10! One of the largest infrastructure projects in the nation, the WSIP is repairing, replacing and upgrading our aging water infrastructure to ensure we can deliver water to customers following an earthquake. We’ve gotten a little nostalgic about how far we’ve come in the last 10 years, and we would like to share this video with you.



Now 80 percent complete, the WSIP has already provided increased reliability to the water supply for customers as a result of the completion of some of the program’s major projects. The program has created over 6 million construction craft hours to date, employing more than 11,000 workers since 2007. Nearly half of those workers live in our four-county service area.

Wednesday, May 7, 2014

Construction Notice: Excavation and Testing near Paseo Padre Pkwy

Construction activities will re-commence in the area between Paseo Padre Parkway and Nugget Way on Monday, May 12. 

Crews will use machines to excavate near the pipeline shut-off station, run water tests and then connect the new earthquake-safe pipeline to the regional water system.

This work will take place between 7 a.m. and 7 p.m., Mondays through Fridays, and 9 a.m. to 6 p.m. on Saturdays. The work will not affect traffic.

Thursday, May 1, 2014

Milestone: the Seismic Slip Joint

In April, we installed a one-of-a-kind seismic slip joint. Watch the video here:

Monday, April 14, 2014

Construction Notice: Two-day on-ramp closure at Mission Blvd.

The westbound Mission Blvd. to northbound I-680 on-ramp in the Warm Springs neighborhood of Fremont will be closed between 10 p.m. on Wednesday night April 16 through 6 a.m. on Saturday morning, April 19 to install a large slip joint.

The slip joint to be installed is designed to absorb up to 6.5 feet
of movement during a major earthquake.

The red line shows the on-ramp subject to closure.
Detour Information 
To detour during this on-ramp closure, use Warm Springs Blvd. (North), and make a right at Auto Mall Parkway to merge onto the I-680 North.

Trucks should take the Warm Springs Blvd. detour or turn left at Durham Rd. to access I-680 before the Mill Creek bridge.

Monday, April 7, 2014

On-ramp Closure: Eastbound Mission Blvd. to Northbound I-680

This Thursday night 4/10 and Friday morning 4/11, the Eastbound Mission Blvd. to Northbound I-680 on-ramp in the Warm Springs neighborhood of Fremont will be closed between midnight and 5:00 a.m.

In order to complete essential elements of our regional water pipeline upgrade, it is necessary to close and slightly re-align this on-ramp. This will allow construction activities to continue alongside this busy commuter corridor without further impacting traffic.

Why a Night Time Closure? 
Closing the on-ramp late at night causes the least impact to commuters and local residents.
The pipelines we are upgrading are located directly under the I-680 freeway and the on/off-ramps of Mission Blvd. In order to access the pipeline, a phased traffic handling plan is being put in place. The SFPUC, Caltrans and other governmental agencies have worked together closely on this phased traffic approach plan to limit impacts to drivers and the surrounding community.

Detour Information 
To detour during this five-hour on-ramp closure, use Warm Springs Blvd. (North), and make a right at Auto Mall Parkway to merge onto the I-680 North.

Trucks should take the Warm Springs Blvd. detour or turn left at Durham Rd. to access I-680 before the Mill Creek bridge.

The red line shows on-ramp to be closed at midnight on Thursday night.
The on-ramp will re-open on Friday morning, April 11 at 5:00 a.m., shown in blue.