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Portland Water Bureau

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Phase 1 of Water Mains Project Completed in Hillsdale Neighborhood

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SW Carolina Main Project

The Portland Water Bureau recently completed the first phase of its SW Carolina Pump Main Project, which installed 900 feet of 24-inch diameter water supply pipeline leading to the Burlingame storage tanks on SW 10th Avenue near Wilson High School. Another 500 feet of 4 to 16-inch diameter pipe was also installed or upgraded. In addition to the pipe work, the largest of the three tanks underwent seismic retrofits to make its joints flexible in an earthquake. Underground vaults were also installed to house altitude valves that control the water level elevation of the tanks remotely. 

The Burlingame tank site is a major hub in the city’s water distribution system for much of southwest Portland. These upgrades increased the system’s reliability and versatility as well as reduced their vulnerability.

The second phase of the SW Carolina Pump Main Project will install a new pipeline to connect the Burlingame tanks and the Westwood tank, which will create connections between the Fulton Pump Station to the Carolina Pump Station. This work is slated to begin in early summer 2014 and be completed by December 2014.

Crews will install 3,400 feet of new 24-inch diameter pipe from the intersection of SW Burlingame Avenue and SW Chestnut Street, north along SW Burlingame Avenue, then turn east on SW Burlingame Terrace down to SW Terwilliger Boulevard. Once on SW Terwilliger Boulevard, the construction will continue north until the traffic island at SW Capitol Highway where new underground vaults will be installed.

While fairly straightforward, the project is expected to be challenging due to its neighborhood impacts. A deep four-foot wide pipe trench will need to be dug through narrow, 10 to 12 foot wide residential streets. Once the project moves onto SW Terwilliger Boulevard, traffic impacts are expected to be significant since this is a major thoroughfare through southwest hills communities. The vault work in the traffic island on SW Capitol Highway will cause further traffic delays.

The Portland Water Bureau is committed to keeping area residents and motorists informed of the project’s schedule and its impacts as the project planning moves forward.  While most of Portland’s water is gravity fed, southwest hills neighborhoods rely on pumps to deliver water to higher elevations.

Undoubtedly this work will cause some inconvenience to the area, but the project will significantly increase the reliability and versatility of Portland’s water system. 

For information about this project, contact Darcy Cronin, Public Information, at 503-823-3520.

Darcy Cronin
Public Information

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Spam Prevention In the Pacific Northwest, what state is Portland in?