Friday - March 6, 2015

Tunnel boring machine arrives to site

Tunnel boring machine

Architectural stone veneer

Gladstone Pipeline and River Intake Construction Update

This update includes construction work in the following areas. Read More for specific information on each location:

  • Microtunnel at Jensen Road pathway - tunnel boring machine arrives
  • Meldrum Bar Park pipeline work - ballfield parking lot, major pipe connection
  • W. Exeter Street - pipeline construction to resume mid-March
  • River Intake Pump Station (RIPS) - stone veneer being placed, testing continues


Microtunnel at Jensen Road pathway – tunnel boring machine arrives

Safety is our first priority for the partnership and our contractors. Unfortunately, an accident occurred on site this week where a worker fell off a ladder into the microtunnel shaft. Emergency responders rescued the man and transported him to OHSU, where he is in a serious, but stable condition. Our thoughts are with the foreman, his family and crew. Click here for more information about the incident.

At the site, the temporary base slab is now poured, and the shaft is being prepared prior to installing the tunneling equipment.

The tunnel boring machine arrived on site this week and will likely be launched in the next week or so. 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 construction, there may also be an increase in noise, truck traffic and vibration depending on neighbors’ locations.

Meldrum Bar Park pipeline work - pipeline installation in ballfield parking lot and major pipe connection on Meldrum Bar Park Road

Crews are progressing with pipe installation through the ballfield parking lot, working towards Jensen Road pathway. This work should be done in the next week or so. To accommodate equipment and maintain safety during construction, the ballfield parking lot is temporarily closed.

Next week, crews will be working on Meldrum Bar Park Road near the river, making a connection from the new pipe to the existing 27 in. water pipe.

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.

W. Exeter Street – pipeline installation to resume mid-March

During the week of March 16, crews expect to mobilize equipment to W. Exeter Street at Bellevue, and resume installing pipe to the western end of W. Exeter Street. Traffic detours and temporary closures will be in place during work hours, usually one block at a time. Equipment and material will be stored and parked in the right-of-way along Exeter Street. Key information:

  • During work hours, there will be no on-street parking in the one block closure zone
  • For safety, residents located in the closed work zone who usually park along the street during the day, will need to park elsewhere on side streets.
  • Neighbors may notice an increase in noise and truck traffic during construction.

River Intake Pump Station (RIPS) - stone veneer being placed, testing continues

Crews have started to install the architectural stone veneer as part of the entrance gate at the site. This is expected to take about three weeks to complete.

Operational testing of the new pump station continues, including Water Treatment Plant staff training on the new pumps and equipment.

Commissioning will begin once operational testing is complete, and the new RIPS will 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.

For more information, please visit the Gladstone construction activities page or “all work underway” map, or contact us.