SW Sacajawea closure August 30–September 4 for tower crane removal
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Hard work by our contractor during the past few months means that they are ready to dismantle one of the two tower cranes at the work site. The tower crane will be dismantled into smaller parts by two smaller mobile cranes. Removal of the different crane parts via tractor trailer will require several trips.
What to expect:
- Street closure timeline: SW Sacajawea Boulevard between SW Park Place and SW Sherwood Boulevard will be closed to all traffic all hours shortly after noon on Sunday, Aug. 30 to 7 a.m. Friday, Sept. 4. This closure applies to vehicles, bicycles, and pedestrians.
- Early morning mobilization: Tractor trailers will begin arriving at approximately 5 a.m. Monday, Aug. 31. The mobile cranes that are used to dismantle the tower crane will arrive early to allow for orientation and for the operators to set up.
- Restricted pedestrian/bike access: While bike and pedestrian access will not be allowed on SW Sacajawea Boulevard, the multi-use path on SW Lewis and Clark Way will be open for travel in both directions. People with bicycles will be required to walk along SW Lewis and Clark Way.
- Delays: Expect traffic delays on SW Lewis and Clark Way and SW Sherwood Boulevard as trucks maneuver into position.
- What you can do: Local residents and visitors to the park should watch for signs, plan extra time for trips, and consider alternate routes and modes of transportation to get to destinations.
The second crane will come down later this fall.
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Roof membrane application
Workers are applying waterproofing membrane across the surface of the reservoir roof. First they spread an adhesive on the concrete. Then they apply long, narrow strips of hot rubber sheeting across the adhesive. This membrane will waterproof the reservoir to ensure that no external water enters the drinking water system. Work on the waterproofing membrane started at the southern end of the reservoir and will advance to the north over time.
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Roof pours: we're halfway there
In addition to completing pours on the on the southern half of the reservoir, we’re also halfway done with pours on the northern part of the reservoir roof. (Ok, ok, technically this means we’re three-fourths of the way there, but couldn’t pass on the Bon Jovi reference.)
Our largest roof pours are now complete, but roof pours will continue with several smaller pours for minor elements of the reservoir, including stairs, curbs, and vents.
What to expect
- Pours per week: Twice-weekly pours Wednesday and Thursday through the end of August, then weekly pours taking place through October
- Location: The remaining roof pours will take place on the northern end of the reservoir. After that, smaller pours will take place in various locations around the reservoir.
- Start time: 2:30 a.m. on warmer summer days, later on cooler days
- Number of trucks for roof pours: 35
- Typical number of trucks for minor pours: Ten or less
- Truck Routes: Trucks arrive via SW Park or SW Jefferson (same as before)
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Rebuilding a hillside
Neighbors and park visitors may have noticed a bit of truck traffic lately. We have up to fourteen trucks per day working to add 55,000 tons of gravel to the southwestern hillside of the project area as part of the plan to stabilize the ancient landslide in the area. We expect this work to be complete later this fall.
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Trail and other closures
Madison Trail: As we mentioned in our last email, the trail will remain closed to keep people safe and to reduce the inconvenience of intermittent openings and re-closures. We expect this work to be complete and the trail to reopen by fall.
Other park activities: Check out Explore Washington Park’s COVID-19 resource page for openings, closures, and safety suggestions.
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We’re getting a new look
The City of Portland has a brand-new digital home at portland.gov. With improved searchability and shorter, more conversational content, the new website is organized from a community perspective and designed to be user-friendly so it’s easier to find what you need. We appreciate your patience as we transition Washington Park Reservoirs Improvement Project information to the new design.
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Spread the word!
Help us share Washington Park Reservoir news with neighbors, the construction enthusiast in your life, or anyone else you think might be interested. Sign-up for updates here.
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 503-865-6054
 Water service emergencies
503-823-4874
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The Washington Park Reservoir Improvement Project will create a more earthquake-resistant water supply for residents and businesses on Portland’s west side, including 20 schools, 5 hospital complexes, and more than 60 parks.
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