Tuesday - March 4, 2014

River Intake Construction Update

Crews focus on stabilizing and securing the cofferdam sheet piles

Crews at the river intake pump station site in Gladstone have been working to stabilize and secure the cofferdam sheet piles that detached and tilted into the river late last month.

Yesterday, additional steel beams were installed inside the cofferdam using a ”vibratory hammer,” which is the same method that was first used to install the sheet piles. Once the beams are in place, they will be welded to the existing horizontal support brace in the cofferdam. This work will continue through this week.

Neighbors may notice an increase in noise and potential vibration as crews work to repair the cofferdam and install the beams. Work hours will be 7 a.m. to 6 p.m. Monday to Friday.

Despite the breach, work will be able to continue within the portion of the pump station that has already been constructed. Crews are continuing to prepare for the next stage of forming the pump station floor decking.

We apologize for the inconvenience this work may cause, and thank you for your patience. 

For more information, please contact the Project Hotline at 503-697-6502, email lotwater@ci.oswego.or.us.