Friday - January 23, 2015

Gladstone Pipeline and River Intake Construction Update

Forming the walls for the new pedestrian gate

Contractor’s equipment staging area

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

  • River Intake Pump Station (RIPS) - fish screens installed and testing begins!
  • Meldrum Bar Park pipeline work - night work complete, day work continuing
  • Microtunnel at Jensen Road pathway - excavation of the work pit begins next week


River Intake Pump Station (RIPS) - fish screens installed, and testing begins

This week, the fish screens were installed and concrete was poured for the new RIPS pedestrian gate. The new gate and fence will be installed over the next month. The large red crane will be removed from the site in February.

Electricians have begun testing equipment in the electrical and control rooms. Over the next month, crews will be performing operational testing for the new pumps as part of startup and commissioning of the new structure. In early March, the new intake will be operatational, pumping water to the existing treatment plant in West Linn.
This summer, the existing intake will be demolished. Once this is complete, landscaping will be installed.

Meldrum Bar Park pipeline work - night work complete, day work continuing

Last week, night work was completed and day work began to install pipe along Meldrum Bar Park Road. Work hours are 7 a.m. – 6 p.m., Monday through Friday. Crews are currently installing pipe on Meldrum Bar Park Road, near the contractor’s equipment staging area.

Next week, crews will be working closer to the river, to make the connection between the newly installed pipe under the river. Once this is complete, crews will relocate back to near the staging area, and continue laying pipe on Meldrum Bar Park Road and through the ballfield parking lot.

In February, the ballfield parking lot will be temporarily closed. During this time, the lot will be used as an equipment storage and work area for construction of the pipeline through the parking lot.

Access to the park and boat ramp will remain open during Meldrum Bar Park hours. Please watch for flaggers in the work areas, as 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 – excavation of the work pit begins next week

Next week, crews expect to begin excavating for the microtunnel shaft (work pit), and installing steel piles to support the shaft at the Jensen Road pathway near River Road.

Once this is done, crews will pour a temporary floor in the base of the shaft and place the tunnel borning machine inside. The machine will then bore a tunnel under River Road and McLoughlin Boulevard, working east to Exeter Street.

Dirt and materials will be removed during the excavation and microtunneling. Equipment will run on the microtunnel site, sometimes continuously during work hours.

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.

To maintain safety, the Jensen Road pathway will be closed to pedestrians during construction of the microtunnel and pipeline work along the pathway. Please use Meldrum Bar Park Road to access the park.

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