Description
UPDATE:
- Project Complete: The project is now complete. A Grand Opening event for the new 189th Pump Station will be held in spring 2026. Additional details will be shared by mail, email, and here on the project webpage. Learn more.
Project Overview
A contractor for TVWD will be:
- Demolishing the existing pump station and reservoir at TVWD’s 189th property (SW 189th Avenue/SW Hart Road).
- Demolishing the existing pump station and reservoir at TVWD’s Goyak property (189th Avenue/SW Rigert Road).
- Building a new pump station at the 189th property.
- Installing new water transmission pipeline from the 189th property to the Goyak property.
Pump stations control the flow of water through the distribution system, and push water through pipelines from lower to higher elevations.
Project Map
View a map of the worksites and the project's public outreach area.
General Impacts
During Construction
- Work Hours: Typical work will occur Monday through Thursday, from 7 a.m. to 5 p.m.
- Staging: Equipment, tools, and materials may be stored on nearby streets overnight.
- Large equipment: Front loaders, excavators, and dump trucks will be used during this project.
- Dust and noise: Customers in the immediate area will experience dust and noise during the project, including:
- Mechanical noise from heavy machinery and equipment.
- Impact noise from breaking and removing concrete.
- Vehicular noise from trucks transportation materials to and from the construction site.
- Beeping or alarms used by vehicles and machinery for safety purposes.
- Traffic: Trucks will be hauling away dirt and concrete from the construction sites and making large deliveries of materials and equipment to the construction sites. This may cause up to 15-minute delays on 189th Avenue. Customers are encouraged to plan for extra travel time and consider detouring around the site using SW Hart Road to SW 185th Avenue to Farmington Road.
- Unpaved Area: The unpaved area of 189th Avenue, located north of Hart Road, will be restored to its original state after the project is complete, including reinstall of the barriers.
- Vibration and Sound Monitoring Devices: Customers near the construction site will experience vibration. Vibration and sound monitoring devices have been installed at the construction site and on nearby customer’s properties to continuously monitor levels during work hours. If vibration or sound levels exceed the alarm limit, project staff will promptly receive an automatic notification. Immediate action will be taken to address the issue and prevent recurrence.
- Parking: Construction crew members will carpool to the construction site to reduce impacts to parking in the area.
- Planned Water Service Interruptions: Customer's water service may intermittently be shut off for several hours to complete portions of the project. Customers will be notified with a front door notice at least 48 hours in advance of any planned water service shut off.
- Services: Mail, garbage, and delivery services will continue to have access to provide their services.
- Drone Surveys: During the project, TVWD may fly a drone to conduct regular aerial surveys of the construction site and monitor progress. The goal of these surveys is to provide high-resolution images and videos.
After Construction
- Road Restoration: Temporary road surfaces will be maintained until final road restoration can be scheduled, based on weather.
Construction Process
- Spring to Summer 2024: Fencing the Goyak property; Demolishing the reservoir at the 189th property
- Fall 2024 - Spring 2025: Construction of the pump station building including walls, roof, interior mechanical, plumbing, and electrical work, and on-site stormwater piping and appurtenances.
- Fall - Winter 2025: Pipeline construction connecting the new pump station at the 189th property to the Goyak property
- Summer 2025: Startup and testing of the new pump station.
- Fall 2025: Demolition of the Goyak Reservoir and Pump Station, demolition of 189th pump station, final pipeline abandonments.
- Winter 2025: Completion of the project.
Project Benefits
189th Reservoir and Pump Station
The existing 189th Reservoir and Pump Station are aging and experiencing equipment challenges. In addition, the current water demand exceeds the station’s capacity to serve current and future customers in the growing upper elevations of the Cooper Mountain service area.
Goyak Reservoir and Pump Station
The Goyak Reservoir and Pump Station is difficult to access for operations staff, has groundwater intrusion, and needs significant additional upgrades. Due to seismic deficiencies and the challenges of upgrading the reservoir and pump station, the District has elected to consolidate and include the functionality of these facilities elsewhere in the distribution system.
New 189th Pump Station and Piping
The new pump station and associated piping will:
- Replace both the current 189th Pump Station and the Goyak Pump Station.
- Push water to the Cooper Mountain Reservoirs located on Kemmer Road across from the Tualatin Hillsboro Park & Recreation District Cooper Mountain Nature Park.
- Boost water service capacity by 60 percent, supporting the growing needs of the Cooper Mountain service area amid ongoing development, well into the future.