Tunneling under the railroad tracks on Bonita Road continues
Tigard Pipeline and Bonita Pump Station Construction Update
This construction update includes all work in Tigard for the project. Read below for specific information on each location:
- Bonita Road Pipeline
- Pipe Installation at the Intersection of 72nd Ave. and Bonita Rd.
- Bonita Pump Station
Bonita Road Pipeline
Crews are currently tunneling under the railroad tracks on Bonita Road to install a crucial component of the new water pipeline. Concrete barricades and other traffic barriers have been installed around the work site for the excavation shaft in the center lane of Bonita Road, near 74th Avenue, for the safety of both drivers and crews (pictured below). The work site is present 24 hours a day, seven days a week for at least another four weeks. While it is in place, there will be no left turns permitted from 74th Avenue onto Bonita Road. Two-way traffic will be maintained on Bonita Road and traffic control devices will direct vehicles around the site.
Pipe installation at the intersection of 72nd Ave. and Bonita Rd.
Beginning Friday, June 19, crews will install the pipeline through the intersection of 72nd Avenue and Bonita Road. Crews will begin construction activities at 8 p.m. and conclude Saturday mid-morning. A single-lane closure will be in place while crews are working in the intersection, which will move as the crew progresses towards Sequoia Parkway.
Regular pipe installation resumes on Bonita Road, between 72nd Avenue and Sequoia Parkway the week of July 22. Work hours are 8 p.m. to 5 a.m., Monday through Friday. Crews expect to install about 50 feet of pipe each night. As the pipeline is installed, the road will be temporarily patched. Final paving will occur after the pipe is pressure tested and disinfected, likely in early fall 2015.
Bonita Pump Station
Next week, crews will pave the Bonita Pump Station site and begin planting landscaping. Over the next few weeks, crews will finish installing the electrical and instrumentation, which runs the pumps. They will also install sky lights and paint the interior pipelines (pictured above).
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.