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Project Updates


October 20, 2016: Washington Park Reservoir Improvements Project Monthly Update

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The Portland Water Bureau and contractor Hoffman Construction Company have started a long-term capital improvement project to update the Washington Park reservoir site at 2403 SW Jefferson Street. The project complies with federal and state mandates, seismically strengthens key water infrastructure on Portland’s west side, and helps ensure a healthy, resilient, and secure water system.

PROJECT SUMMARY
A new 12.4-million gallon, seismically reinforced below ground reservoir will be constructed in the same footprint of existing Reservoir 3 (upper) with a reflecting pool/water feature on top. The new reservoir will preserve the historic drinking water function provided by the original reservoirs and be engineered to withstand ongoing landslide encroachment and potentially catastrophic effects of a major earthquake.             

When complete and online, the new reservoir will supply water to Portland’s west side and serve more than 360,000 people, including all downtown businesses and residents, 20 schools, five hospital complexes, more than 60 parks, and the Oregon Zoo.

Existing Reservoir 4 (lower) 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.

SCHEDULE
Construction started Sept. 12, 2016 and will proceed through 2020. A pause is scheduled to occur from 2020 to 2022 to allow soils to settle. From 2022 to 2024, construction of interpretive features, including the two reflecting pools and surface features, will conclude the project.

FIVE MONTHS AT-A-GLANCE

TASK LOCATION 2016 2017
OCT NOV DEC JAN FEB
Install Tree Protection Fencing Around project site  X        
Begin Removal of Grand Staircase Within project site, by Existing Reservoir 3  X        
Remove Gatehouse 3 Platform Within project site, by Gatehouse 3  X        
Remove Plastic Liner Within Existing Reservoir 3  X        
Vegetation / Tree Removal Around the existing reservoirs, by SW Sacajawea Blvd. and SW Sherwood Blvd.  X        
Removal of Stilling Tank inside Gatehouse 4 Within project site, by Gatehouse 4  X  X      
Modify Reservoir 4 concrete liner Within Existing Reservoir 4  X  X      
Erosion Control (ongoing) Within project site, by Existing Reservoirs 3 and 4  X X  X  X 
Fill Reservoir 4 Basin Existing Reservoir 4   X  X  X  X
Construct Upper and Lower Shoring Walls Within project site, by Existing Reservoir 3   X  X  X  X
Install Piping  Under Dam 3   X   X   X

ACTIVITY & IMPACTS
Until March 2018, major earthwork will occur along with the construction of shoring walls and the new underground reservoir. Work during this stage will cause temporary impacts to traffic, parking, and TriMet bus service.  

Current –   March 2018
IMPACTS
Road Closures
  • SW Sacajawea Boulevard is closed to all vehicle and bike traffic and pedestrian use from the   intersection of SW Sacajawea Boulevard/SW Rose Park Road/SW Wright Road to SW Park Place.
  • SW Sherwood Boulevard is closed to all vehicle and bike traffic and pedestrian use from SW Sacajawea Boulevard to the Soccer Field.
  • SW Sherwood Boulevard is closed to all vehicle traffic from the Soccer Field to SW Kingston Avenue.
  • SW Sherwood Boulevard sidewalk is open for pedestrian use and bike traffic from SW Kingston Avenue to the Soccer Field. 
Tour Buses, Free Park Shuttle
  • Tour buses and the free park shuttle are allowed access onto SW Sherwood Boulevard at SW Kingston Drive for turnaround at the Soccer Field. No unauthorized vehicles will be permitted on SW Sherwood Blvd.
 Traffic Flow Reversal
  • The flow of traffic is reversed on SW Lewis Clark Way.
  • One-way traffic travels SW Lewis Clark Way and exits the park on SW Park Pl.
Multi-Use Shared Path
  • A designated path separate from vehicles is now available on SW Lewis Clark Way.
  • Pedestrians and cyclists can use the path to travel both in and out of the park on SW Lewis Clark Way.  
  • Cyclists are required to walk and not ride bicycles on the path.   
Parking
  • All parking spaces are closed on SW Lewis Clark Way, SW Sacajawea Blvd., and SW Sherwood Blvd. 
Trails
  • Madison Ct. Trail: Pedestrians and cyclists can enter and exit the Madison Ct. Trail on SW   Madison St. and SW Sacajawea Blvd. The trail will be closed intermittently; watch for detour signage.
  • Mac Trail: Open, not affected by project work. Continued access via SW Sherwood Blvd. and SW Sacajawea Blvd.
TriMet Bus Service
  • TriMet Bus Line 63 - Washington Park/ Arlington Heights is detoured.
  • The following stops are closed: 6177, 4346, and 4343
  • Check trimet.org for updates.

SAFETY IS OUR TOP PRIORITY
The traffic control plan in place until March 2018 has been approved by the Portland Bureau of Transportation with input from Portland Parks & Recreation, Explore Washington Park, neighborhood associations, and the community. Please contact us to share any concerns related to the project, including traffic control.

OCTOBER 2016 ACCOMPLISHMENTS

General Site Work

  • Tree protection fencing has been installed to minimize impacts during construction.
  • Vegetation and trees have been removed from in and around the project site. Of the approximately 210 trees removed, 19 percent (40 trees) are non-native/invasive. Roughly 47 percent (80 trees) of the healthy, non-invasive trees removed will be used in river restoration projects in the Sandy River Basin. These projects will help create pool habitat, increase cover, and improve spawning beds for migrating, spawning, and rearing fish populations. Several trees were also delivered to the Oregon Zoo for use in primate exhibits. After construction is completed, the Water Bureau has committed to plant 20 percent more trees and shrubs than required. 

 Reservoir 3 & 4 Work

  • Existing Reservoir 4 inlet and outlet piping has been disconnected.
  • Existing Reservoir 3 Grand Staircase has been partially removed.
  • Gatehouse 3 platform has been removed.
  • The plastic liner in Existing Reservoir 3, originally installed in the 1970s and later replaced in 2003-2004, has been removed.

UPCOMING/ONGOING WORK

  • Erosion control at the site is ongoing.
  • The Stilling Tank inside Gatehouse 4 will be removed.
  • Existing Reservoir 4 concrete liner will be perforated to allow for drainage. As part of the project, existing Reservoir 4 will be removed and buried, making room for a large stormwater bioswale and wildlife habitat area with open water and connecting walkways.
  • Existing Reservoir 4 basin will be filled in order to stabilize the historic landslide. Excavated material from Reservoir 3 will be moved inside the project work site to fill Reservoir 4. This will dramatically reduce construction impacts and truck traffic to local neighborhoods.
  • Crews will begin construction on the first of two shoring walls, one temporary and one permanent, to protect the site from earth movement and allow for construction of the underground reservoir.
  • Under Dam 3, piping will be installed.

KEEPING YOU UP-TO-DATE
Please contact us with questions, concerns, or to sign up to receive monthly project updates.

September 30, 2016: Washington Park Reservoir Improvements Project Monthly Update

The Portland Water Bureau and contractor Hoffman Construction Company have started a long-term capital improvement project to update the Washington Park reservoir site at 2403 SW Jefferson Street. The project complies with federal and state mandates, seismically strengthens key water infrastructure on Portland’s west side, and helps ensure a healthy, resilient, and secure water system.

PROJECT SUMMARY
A new 12.4-million gallon, seismically reinforced below ground reservoir will be constructed in the same footprint of existing Reservoir 3 (upper) with a reflecting pool/water feature on top. The new reservoir will preserve the historic drinking water function provided by the original reservoirs and be engineered to withstand ongoing landslide encroachment and potentially catastrophic effects of a major earthquake. When complete and online, the new reservoir will supply water to Portland’s west side and serve more than 360,000 people, including all downtown businesses and residents, 20 schools, five hospital complexes, more than 60 parks, and the Oregon Zoo.

Existing Reservoir 4 (lower) will be disconnected from the public drinking water system and a lowland wildlife habitat area, bio-swale, and reflecting pool will be constructed in the basin.

SCHEDULE
Construction started Sept. 12, 2016 and will proceed through 2020. A pause is scheduled to occur from 2020 to 2022 to allow soils to settle. From 2022 to 2024, construction of interpretive features, including the two reflecting pools and surface features, will conclude the project.

ACTIVITY & IMPACTS
From September 12, 2016 until March 2018, major earthwork will occur along with the construction of shoring walls and the new underground reservoir. Work during this stage will cause temporary impacts to traffic, parking, and TriMet bus service.  
Access a map of park impacts online.

IMPACTS
Road Closures

  • SW Sacajawea Boulevard is closed to all vehicle and bike traffic and pedestrian use from the intersection of SW Sacajawea Boulevard/SW Rose Park Road/SW Wright Road to SW Park Place.
  • SW Sherwood Boulevard is closed to all vehicle and bike traffic and pedestrian use from SW Sacajawea Boulevard to the Soccer Field.
  • SW Sherwood Boulevard is closed to all vehicle traffic from the Soccer Field to SW Kingston Avenue.
  • SW Sherwood Boulevard sidewalk is open for pedestrian use and bike traffic from SW Kingston Avenue to the Soccer Field.

Tour Buses, Free Park Shuttle

  • Tour buses and the free park shuttle are allowed access onto SW Sherwood Boulevard at SW Kingston Drive for turnaround at the Soccer Field.
  • No unauthorized vehicles will be permitted on SW Sherwood Blvd.

Traffic Flow Reversal

  • The flow of traffic is reversed on SW Lewis Clark Way.
  • One-way traffic travels SW Lewis Clark Way and exits the park on SW Park Pl.

Multi-Use Shared Path

  • A designated path separate from vehicles is now available on SW Lewis Clark Way.
  • Pedestrians and cyclists can use the path to travel both in and out of the park on SW Lewis Clark Way.
  • Cyclists are required to walk and not ride bicycles on the path. 

Parking

  • All parking spaces are closed on SW Lewis Clark Way, SW Sacajawea Blvd., and SW Sherwood Blvd.

Trails

  • Madison Ct. Trail: Pedestrians and cyclists can enter and exit the Madison Ct. Trail on SW Madison St. and SW Sacajawea Blvd. The trail will be closed intermittently; watch for detour signage.
  • Mac Trail: Open, not affected by project work. Continued access via SW Sherwood Blvd. and SW Sacajawea Blvd.

TriMet Bus Service

  • TriMet Bus Line 63 - Washington Park/ Arlington Heights is detoured.
  • The following stops are closed: 6177, 4346, and 4343
  • Check http://trimet.org for updates.

Park Entrances

  • W Burnside Rd. to SW Tichner Dr.
  • SW Canyon Rd. to SW Knights Blvd.
  • SW Fairview Blvd. to SW Knights Blvd.

Park Exits

  • SW Fairview Blvd. to SW Knights Blvd. 
  • SW Knights Blvd. to SW Canyon Rd.
  • SW Lewis Clark Way to SW Park Pl.
  • SW Tichner Dr. to W Burnside Rd.  

SAFETY IS OUR TOP PRIORITY
The traffic plan spanning now until March 2018 has been approved by the Portland Bureau of Transportation. The Water Bureau will be conducting evaluations and adjusting traffic flow as conditions require. The Water Bureau is working with Portland Parks & Recreation, Explore Washington Park, neighborhood associations, and the community to gather on-the-ground feedback and determine if changes are necessary. Please provide your traffic and signage feedback by phone, e-mail, or on the dedicated webpage.

SEPTEMBER 2016 ACCOMPLISHMENTS
General Site Work         

  • Construction trailers for project team members to work, meet, and manage the project have been delivered and installed. 
  • The Portland Bureau of Transportation approved traffic control plan spanning Sept. 12, 2016 to March 2018 was successfully implemented. The plan includes road closures, parking changes, a traffic flow reversal, and a multi-use shared path for pedestrians and cyclists along with more than 130 signs, reader boards, and flaggers to maintain a safe, uniform flow of traffic in Washington Park.
  • Vegetation and trees are in the process of being removed from around the project site. Of the approximately 210 trees to be removed, 19 percent (40 trees) are non-native/invasive. Roughly 47 percent (80 trees) of the healthy, non-invasive trees removed will be used in river restoration projects in the Sandy River Basin. These projects will help create pool habitat, increase cover, and improve spawning beds for migrating, spawning, and rearing fish populations. Several trees were also delivered to the Oregon Zoo for use in primate exhibits. After construction is completed, the Water Bureau has committed to plant 20 percent more trees and shrubs than required.

Reservoir 3 & 4 Work      

  • The wrought iron fencing surrounding Existing Reservoir 3 and 4 has been removed. Portions will be rehabilitated off‐site and incorporated into the redeveloped surface water feature. Prior to removal, the fence was photographed, documented, tagged, inventoried, and specially packaged for protection so that it could be taken off site for restoration, some for repurposing, and all for protection during construction.
  • The construction fencing surrounding the site has been installed.
  • The Weir Building, constructed in 1949 to screen water, has been removed. Its removal will provide the necessary space to build shoring that will in turn support the underground reservoir construction.
  • Large equipment is mobilizing on site for the installation of two shoring walls, one temporary and one permanent, to allow excavation for the new seismically reinforced underground reservoir fortress.

PHOTOS
Photos of project work are accessible on the project's Flickr album.

KEEPING YOU UP-TO-DATE
Please contact us with questions, concerns, or to sign up to receive monthly project updates.

September 8, 2016: Breaking Ground, Temporary Impacts to Travel & Parking

Downloadable file: Traffic Advisory 
Downloadable file: Brochure

The Portland Water Bureau and contractor Hoffman Construction Company have begun an eight-year capital improvement project to update the Washington Park reservoir site.

The project complies with federal and state mandates, seismically strengthens key water infrastructure on Portland’s west side, and helps ensure a healthy, resilient, and secure water system. 

The project will span from 2016 to 2024. During the first two years, major earthwork will occur along with the construction of shoring walls and the new underground reservoir. This will trigger the most significant impacts to TriMet bus service, traffic, transportation, and parking in the park.

Park users are encouraged to move safely around the park. Please watch for detours and signage and follow direction from flaggers. The public should not follow construction vehicles or buses as they may enter restricted zones. All construction-related traffic impacts are subject to change.

To avoid delays, plan ahead and visit Explore Washington Park and TriMet for transit options in the park. Please consider taking public transit and the Explore Washington Park Free Shuttle. The shuttle runs weekends only now through October 31 and will resume service in the spring.

From September 12, 2016 through March 2018, the following traffic restrictions will be in place:

ROAD CLOSURES

  • SW Sacajawea Blvd. will be completely closed to all vehicle and bike traffic and pedestrian use from the intersection of SW Sacajawea Blvd./SW Rose Park Rd./SW Wright Rd. to SW Park Pl.
  • SW Sherwood Blvd. will be closed to all vehicles from SW Kingston Ave. to the Soccer Field.
  • SW Sherwood Blvd. will be closed to all vehicles, bikes, and pedestrians from the Soccer Field to SW Sacajawea Blvd.

OPEN FOR PEDESTRIANS/BIKES/TOUR BUSES/SHUTTLE

  • The sidewalk of SW Sherwood Blvd. will remain open for pedestrian use and bike traffic from SW Kingston Ave. to the Soccer Field.

TRAFFIC REVERSAL

  • Traffic flow will be reversed on SW Lewis Clark Way. One-way traffic will travel SW Lewis Clark Way and exit the park on SW Park Place.

MULTI-USE SHARED PATH

  • Starting Sept. 16, 2016, a designated paved-path separate from vehicles will be available on SW Lewis Clark Way. Pedestrians and cyclists can use the path to travel both in and out of the park on SW Lewis Clark Way. Cyclists are required to walk and not ride bicycles on the path.
  • Prior to Sept. 16, pedestrians are encouraged to use the stairs by the Lewis and Clark Memorial Column or be escorted around SW Lewis Clark Way.

TRAILS

  • Pedestrians and cyclists can enter and exit the Madison Court Trail on SW Madison St. and SW Sacajawea Blvd. The trail will close intermittently; watch for signage.
  • The Mac Trail will remain open. Pedestrians are cautioned to watch for trucks where the trail intersects with SW Sherwood Blvd. and SW Sacajawea Blvd.

NO PARKING

  • All parking spaces closed on SW Sacajawea Blvd., SW Sherwood Blvd., and SW Lewis Clark Way.

TRIMET BUS SERVICE

  • Line 63 - Washington Park/Arlington Heights will be detoured and stops 6177, 4346 and 4343 will be closed. Check TriMet.org for updates.

PARK ENTRANCES AND EXITS During this stage of construction:

  • Three park entrances will be available: W Burnside Rd. to SW Tichner Dr.; SW Fairview Blvd. to SW Knights Blvd.; and SW Canyon Rd. to SW Knights Blvd.
  • Four park exits will be available: SW Tichner Dr. to W Burnside Rd.; SW Fairview Blvd. to SW Knights Blvd.; SW Lewis Clark Way to SW Park Pl.; and SW Knights Blvd. to SW Canyon Rd.

The project entails constructing a new 12.4-million gallon, seismically reinforced below ground reservoir in the same footprint of existing Reservoir 3 (upper) with a reflecting pool/water feature on top. The new reservoir will preserve the historic drinking water function provided by the original reservoirs and be engineered to withstand ongoing landslide encroachment and potentially catastrophic effects of a major earthquake.

When complete and online, the new reservoir will supply water to Portland’s west side and serve more than 360,000 people, including all downtown businesses and residents, 20 schools, three hospital complexes, more than 60 parks, and the Oregon Zoo.

Existing Reservoir 4 (lower) 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.

For additional project information and updates, contact 503-823-7030, e-mail Lindsay.Wochnick@portlandoregon,gov, or visit www.portlandoregon.gov/water/wpreservoirs.