PROJECT UPDATE
Taylors Ferry Reservoirs and Site
Seismic Improvement Project:
April 2025 |
Progress Updates
In April 2025, the contractor made major progress on building two new seismically resilient concrete reservoirs – new Reservoir 1 has officially gone vertical, and new Reservoir 2 now has its foundation poured and is on solid footing.
View photos and video below showcasing progress. |
Aerial photo of the site in October 2024. (Existing Reservoir 1 is far north of the site, while existing Reservoir 2 is in the middle, with the former Metzger Water District Building situated in the southern portion of the site.) |
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Aerial photo of the site on April 17, 2025. (Existing Reservoir 1 is visible at the far north of the site, while new Reservoirs 1 and 2 can be seen in the middle and southern portions of the site, respectively.) |
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Drone footage of the site on April 17, 2025.
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To build each of the seven 35-foot-tall walls that will make up the new Reservoir 1, crews first set up wall formwork – a temporary mold that shapes the concrete as it’s poured, followed by installation of rebar, seismic cables, and post-tensioning bars. After inspection, the exterior formwork is installed, and the wall concrete is poured. After pouring each wall, the crews remove the formwork and reassemble it for the next section. |
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Photo of the interior formwork with rebar being placed. |
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Reservoir 1’s walls are one foot thick, providing the necessary strength to withstand internal water pressure, ensure structural stability, and support long-term durability. |
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Six of the seven wall pours were successfully completed for the new 103-foot diameter Reservoir 1, each one reinforced with steel rebar to enhance its strength and flexibility. |
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Crews are also working to pour 30 structural columns inside of new Reservoir 1. These columns will be critical to the integrity and stability of the reservoir, helping to evenly distribute the load of the concrete roof. |
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Wood formwork was installed to shape the foundation of the new Reservoir 2 and hold the wet concrete in place as it sets and hardens. Once the formwork was in position, a steel rebar reinforcement system was installed. |
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Concrete was then poured into new Reservoir 2’s form and around the rebar, filling every space and creating a strong bond between the concrete and steel reinforcement. |
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Upcoming Saturday Work
To accelerate the concrete pouring process for the reservoir walls, columns, and roofs, the contractor has been approved to work on Saturday, May 10, from 8 a.m. to 3 p.m. Work that day will be mostly internal to the reservoir but will involve the on-site crane as crews work to set up the formwork for the roof on Reservoir 1.
We understand that this may cause some inconvenience, and we appreciate your patience as these concrete pours are completed as quickly and efficiently as possible. If the noise becomes disruptive to nearby residents, TVWD will assess options to minimize the impact. Thank you for your understanding.
What’s Next
In May 2025, the contractor is scheduled to (weather permitting):
New Reservoir 1:
- Finish pouring the last wall and columns.
- Complete post-tensioning of the walls.
- Pour the roof (Anticipated for May 20, 2025).
New Reservoir 2:
- Pour five of the seven wall sections.
- Pour four of the groups of columns.
During the roof, wall, and column pours, there will likely be a noticeable increase in traffic around the construction site due to the frequent movement of concrete trucks and additional vehicles parked in the neighborhood, similar to what was experienced in April. The largest concrete pours were completed in April with the completion of the reservoir floors.
Impacts of Upcoming Work
Over the next month, you may experience the following based on how close your home or business is to the Taylors Ferry site:
What You May Hear:
- Loud machinery (excavators, concrete trucks, vibrating equipment).
- Hammering, clanking, and metal noises as forms and rebar are set.
- Concrete pouring and vibrating sounds (rushing, buzzing, smoothing).
- Worker communication and tool sounds.
- Safety beeping from trucks and machinery.
What You May See:
- Trucks delivering concrete to the site by entering from SW Taylors Ferry Road and exiting via SW Brugger Street.
- Workers using cranes to position large forms to shape the reservoirs' walls, columns, and roofs.
- Heavy machinery (bulldozers, excavators, dump trucks).
- A drone capturing construction progress.
What You May Feel:
- Mild ground vibrations from concrete trucks, heavy machinery, and vibrating tools.
Additional Information
We appreciate your patience and understanding as we work to complete this critical project. |
Tualatin Valley Water District
1850 SW 170th Ave
Beaverton, OR 97003
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