Microtunnel machine to begin boring under River Road and McLoughlin Boulevard
Gladstone Pipeline and River Intake Construction Update
This update includes construction work in the following areas. Read more for specific information on each location:
- River Intake Pump Station (RIPS) - testing continues, commisioning to begin!
- Meldrum Bar Park pipeline work - continues next week through the ballfield parking lot
- Microtunnel at Jensen Road pathway - tunnel boring machine to begin soon
River Intake Pump Station (RIPS) - testing continues, commissioning to begin!
Over the last few weeks, Water Treatment Plant staff have been training at the intake on the new pumps, fish screens and operational equipment. Operational testing of the new pumps continues through this week. Next week, commisioning will begin and the new RIPS is expected to be pumping water to the existing treatment plant in West Linn!
In summer, the existing intake will be demolished. Once this is complete, the area will be landscaped.
Meldrum Bar Park pipeline work - continues next week through the ballfield parking lot
Due to higher river levels, work on the connection at the river with the newly installed pipe was postponed until this week. Crews are currently working at night in this area, and expect to be complete by the end of this week.
Next week, crews will resume laying pipe through the ballfield parking lot, working towards the Jensen Road pathway. This work will be done during the day. To accommodate equipment and maintain safety during construction, the ballfield parking lot is temporarily closed. Once work in the ballfield parking lot is complete, crews expect to resume installing pipe along Exeter Street.
Access to the park and boat ramp remains open during regular park hours. Please watch for flaggers in the work areas—single lane closures are in place during construction in the park. Neighbors and park users can expect to see and hear excavators, loaders, pipe, steel plates, gravel and dump trucks.
Microtunnel at Jensen Road pathway – tunnel boring machine to begin soon
Crews have installed steel piles to support the microtunnel shaft, and are installing wells to manage additional groundwater at the site at the Jensen Road pathway and end of Exeter Street.
Next week, crews expect to pour a temporary floor in the base of the shaft and set up the microtunneling equipment. The machine will then bore a tunnel under River Road and McLoughlin Boulevard, working east to Exeter Street and 60 in. pipe casing will be inserted into the tunnel.
Large storage tanks to help separate the dirt and materials removed during microtunneling are set up at the site and along the side of River Road, near Jensen Road. Work hours are 7 a.m. – 6 p.m., Monday to Friday, and Saturdays, 9 a.m. – 6 p.m.
To maintain safety, there is a single lane closure on River Road at the Jensen Road pathway during the microtunnel work. Two lanes of traffic will be maintained. The Jensen Road pathway is also closed to pedestrians during construction. Please use Meldrum Bar Park Road to access the park.
Neighbors can expect to see and hear excavators, a hydraulic crane, trucks, a separation tank for the materials removal and a generator. During work hours, there may also be an increase in noise, truck traffic and vibration depending on neighbors’ locations.