GENERAL INFORMATION: 503-823-7404
1120 SW Fifth Ave, Suite 600, Portland, OR 97204
In order to comply with federal and state mandates and ensure a healthy, resilient, and secure water system, the Portland Water Bureau and Oregon general contractor Hoffman Construction Company are moving forward with an eight-year capital improvement project to update the Washington Park reservoir site at 2403 SW Jefferson Street.
The project includes building a new, seismically reinforced below ground reservoir.
The new reservoir will preserve the historic drinking water function provided by the original reservoirs at the site and be engineered to withstand ongoing landslide encroachment and potentially catastrophic effects of a major earthquake. A reflecting pool/water feature will be constructed on top in the same general footprint as the historical Reservoir 3.
Reservoir 4 will be disconnected from the public drinking water system and a lowland wildlife habitat area, bioswale, and reflecting pool will be constructed in the basin.
When complete and online, the new underground reservoir will supply water to Portland’s west side and serve more than 360,000 people, including all downtown businesses and residents, the Oregon Zoo, more than 60 parks, three hospital complexes, and 20 Portland public schools.
UPCOMING PROJECT WORK & IMPACTS
The project will span eight years. The first two years (2016-2018) will trigger the most significant impacts to traffic, transportation, and parking in the park. Washington Park users are encouraged to travel to and move safely around the park and its attractions by using the bus and light rail, walking, biking and skating, and taking the free park shuttle. Visit trimet.org and explorewashingtonpark.org for transit options.
Upcoming Work: Current – September 11, 2016
|Tree Pruning / Inspection||Within project site, around the reservoirs, along SW Sacajawea Boulevard, SW Lewis Clark Way, & SW Madison Court|
|Construction Fence Installation||Within project site|
|Placement of Mobile Field Offices||Project site, below Reservoir 4|
|Vegetation / Tree Removal||Around the reservoirs, by SW Sacajawea and Sherwood Boulevards|
|Erosion Control||Within project site|
|Disconnect Reservoir 3 Inlet and Outlet Piping||Within project site|
|Remove Weir Building||Within project site, east of Reservoir 3|
|Disconnect Reservoir 4 Inlet and Outlet Piping||Within project site, by Reservoir 4|
|Cut and Cap Piping||Within project site, by Reservoir 4|
|Removal of Stilling Tank inside Gatehouse 4||Within project site, by Gatehouse 4|
|Construct Shoring Wall (begins mid-Sept)||Within project site, by Reservoir 3|
|DISCLAIMER: The chart is intended solely for general purposes and guidance only. Target dates for beginning and completion of each task are subject to change.|
Impacts: May – September 11, 2016
FUNDING & BUDGET
The project is part of the Water Bureau’s Capital Improvement Program. It is funded by revenue bond proceeds backed by the utility ratepayers’ fund. Currently, 100 percent of the project’s design is complete. With high confidence, the Water Bureau now appraises the total project budget for the life of the project at $190 million (+/- 10 percent).
In May 2016, the Water Bureau project team presented to Portland City Council two financial items related to the project.
KEEPING YOU UP-TO-DATE To contact us with questions or concerns or to change your preferences on how to receive project updates: