Water Reservoir

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The City of Tigard will design and construct a new water reservoir. This will ensure enough healthy, safe water to:

  • Keep pace with the city’s growth
  • Meet peak demand periods
  • Navigate emergencies and natural disasters

This project includes three major pieces:

  • A fully-buried 4.5-million gallon concrete drinking water reservoir at Sunrise Park – this is referred to as Reservoir 18
  • A new pump station at Water Site 13 to deliver drinking water to the new reservoir – this is referred to as Pump Station 13, and
  • Installation of distribution piping upgrades along two routes within the surrounding neighborhoods – these are referred to as the East and West Piping Upgrades

The main work areas are as follows:

  • Reservoir 18 work will take place at Sunrise Park (15005 SW Sunrise Lane)
  • Pump Station 13 work will take place at Water Site 13 at the southern end of SW 154th Ave.
  • West Piping Upgrades will take place in SW Snapdragon Ln, SW Uplands Dr, SW Rockrose Ln, and SW Yarrow Way.
  • East Piping Upgrades will take place in SW Wintergreen St, SW 153d Terr, SW Roundtree Dr, SW Menlor Ln, SW Fern St, and SW 135th Ave.

What’s Happening Now:

  • Construction is underway and is estimated to be complete by June 2025.
    • Reservoir 18: Tank construction has begun, and limited park access has been restored. A walking trail and observation deck are available on the eastern edge of Sunrise Park. In order to ensure public safety, the park will be closed again during the final backfill phase as early as fall 2024 to June 2025 at the latest.
    • Pump Station 13: Construction began in June 2023 and is expected to be complete by December 2024.
    • West Piping Upgrades: Construction is complete with temporary surface restoration in place. Final restoration is tentatively planned for early March 2024, weather permitting.
    • East Piping Upgrades: Construction began in January 2024.
      • In the area of SW 135th Ave: Work began on January 8, 2024 in the area of SW 135th Ave and SW Walnut St. It is estimated that SW 135th Ave between SW Walnut St and SW Fern St will be closed (local traffic only) through the end of February 2024.
      • In the area of SW 154th Ave: Work began on January 22, 2024 in the area of SW 154th Ave and SW Wintergreen St. SW Wintergreen St between SW 154th Ave and SW 153rd Terrace and all of SW 153rd Terrace is now open. SW Roundtree Dr between SW 154th Ave and SW Brianne Way will be closed (local traffic only) through the end of February 2024.
  • Expect increased traffic on SW 150th Ave, SW 154th Ave, and SW Sunrise Lane as equipment is delivered and construction activities begin. During Piping Upgrade construction, expect intermittent traffic interruptions and detour routes from the above mentioned streets.


Project Photos Update - December 12, 2023

Project Photos Update: October 30, 2023






The City of Tigard will design and construct a new water reservoir. This will ensure enough healthy, safe water to:

  • Keep pace with the city’s growth
  • Meet peak demand periods
  • Navigate emergencies and natural disasters

This project includes three major pieces:

  • A fully-buried 4.5-million gallon concrete drinking water reservoir at Sunrise Park – this is referred to as Reservoir 18
  • A new pump station at Water Site 13 to deliver drinking water to the new reservoir – this is referred to as Pump Station 13, and
  • Installation of distribution piping upgrades along two routes within the surrounding neighborhoods – these are referred to as the East and West Piping Upgrades

The main work areas are as follows:

  • Reservoir 18 work will take place at Sunrise Park (15005 SW Sunrise Lane)
  • Pump Station 13 work will take place at Water Site 13 at the southern end of SW 154th Ave.
  • West Piping Upgrades will take place in SW Snapdragon Ln, SW Uplands Dr, SW Rockrose Ln, and SW Yarrow Way.
  • East Piping Upgrades will take place in SW Wintergreen St, SW 153d Terr, SW Roundtree Dr, SW Menlor Ln, SW Fern St, and SW 135th Ave.

What’s Happening Now:

  • Construction is underway and is estimated to be complete by June 2025.
    • Reservoir 18: Tank construction has begun, and limited park access has been restored. A walking trail and observation deck are available on the eastern edge of Sunrise Park. In order to ensure public safety, the park will be closed again during the final backfill phase as early as fall 2024 to June 2025 at the latest.
    • Pump Station 13: Construction began in June 2023 and is expected to be complete by December 2024.
    • West Piping Upgrades: Construction is complete with temporary surface restoration in place. Final restoration is tentatively planned for early March 2024, weather permitting.
    • East Piping Upgrades: Construction began in January 2024.
      • In the area of SW 135th Ave: Work began on January 8, 2024 in the area of SW 135th Ave and SW Walnut St. It is estimated that SW 135th Ave between SW Walnut St and SW Fern St will be closed (local traffic only) through the end of February 2024.
      • In the area of SW 154th Ave: Work began on January 22, 2024 in the area of SW 154th Ave and SW Wintergreen St. SW Wintergreen St between SW 154th Ave and SW 153rd Terrace and all of SW 153rd Terrace is now open. SW Roundtree Dr between SW 154th Ave and SW Brianne Way will be closed (local traffic only) through the end of February 2024.
  • Expect increased traffic on SW 150th Ave, SW 154th Ave, and SW Sunrise Lane as equipment is delivered and construction activities begin. During Piping Upgrade construction, expect intermittent traffic interruptions and detour routes from the above mentioned streets.


Project Photos Update - December 12, 2023

Project Photos Update: October 30, 2023






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  • Share Will the roads where work was done eventually be repaved, or just the patching work left indefinitely? I live on the corner of Roundtree, which is still a mess even though the street has been filled in. on Facebook Share Will the roads where work was done eventually be repaved, or just the patching work left indefinitely? I live on the corner of Roundtree, which is still a mess even though the street has been filled in. on Twitter Share Will the roads where work was done eventually be repaved, or just the patching work left indefinitely? I live on the corner of Roundtree, which is still a mess even though the street has been filled in. on Linkedin Email Will the roads where work was done eventually be repaved, or just the patching work left indefinitely? I live on the corner of Roundtree, which is still a mess even though the street has been filled in. link

    Will the roads where work was done eventually be repaved, or just the patching work left indefinitely? I live on the corner of Roundtree, which is still a mess even though the street has been filled in.

    Jen26 asked 4 months ago

    Thank you for reaching out with this question. Yes, final surface restoration is planned for Spring 2024, weather permitting. Residents that live along the paving route will be notified once the work is scheduled.

  • Share Has the final location been determined for the new water reservoir? on Facebook Share Has the final location been determined for the new water reservoir? on Twitter Share Has the final location been determined for the new water reservoir? on Linkedin Email Has the final location been determined for the new water reservoir? link

    Has the final location been determined for the new water reservoir?

    Sara asked over 2 years ago

    The technical analysis will be complete this month. We expect to make an announcement by the end of March. 

Page last updated: 29 Feb 2024, 10:25 PM