Tuesday - September 29, 2015

Bonita pipeline construction moves closer towards completion

Crews backfill a section of pipe that was recently installed.

This construction update includes all work in Tigard for the project.

  • Bonita Pipeline Installation
  • Temporary Night Construction - Bonita Road
  • Bonita Pump Station
  • Did You Know?

Bonita Pipeline Installation

Pipeline work continues in the area south of the Bonita Road freeway overpass. Crews began at the site of the I-5 auger bore and are working towards Sequoia Parkway. Work hours are 7 a.m. to 6 p.m., Monday through Friday.

This final section of pipeline is expected to be complete by next month. Afterwards, crews plan to restore the site, including irrigation systems and landscaping. The final paving of Bonita Road will occur after the pipeline is pressure tested and disinfected, likely this fall.

Temporary Night Construction - Bonita Road

Over a few nights this week, crews will make several important connections and abandon an old, smaller water line along Bonita Road. This work will be done during the night, between 8 p.m. and 5 a.m. On Wednesday, Sept. 30, crews will work near the intersection of Milton Court and Bonita Road to make a connection. On Thursday, Oct. 1, crews will make a connection in the intersection of 72nd Avenue and Bonita Road. Please watch for temporary lane closures and flaggers during this time.

Bonita Pump Station

Over the next few weeks, crews will be onsite finishing landscaping and completing the irrigation system installation. Next month, the pump station will undergo testing and chlorination to begin the process of being put into service. Please note, the testing schedule is dependent on the pipeline installation along Bonita Road and schedules are subject to change.

Did You Know?

The new Bonita Pump Station is resilient against large seismic events, featuring discharge pumps with their own foundations and flexible couplings. These design features allow the pumps to move independently from the building during an earthquake. In addition, the building utilizes reinforced masonry shear walls that prevent crumbling.

Click here to learn more about how Tigard and Lake Oswego is preparing for the Cascadia quake with resilient water facilities.

About Bonita Pump Station

The Bonita Pump Station will connect with several local water systems including Lake Oswego, Portland and Washington County. This supply collaboration will keep Tigard protected should one water supply become interrupted. Completion is expected in fall 2015.

For more information, please email, follow @LOTwater on Twitter, call the hotline at 503-697-6502 or visit the All Work Underway map under construction activities.