Thursday - February 20, 2014

River Intake Construction Update

Some river intake cofferdam sheet piles tilted Wednesday, causing water to enter the work area.

Some river intake cofferdam sheet piles tilted Wednesday, causing water to enter the work area.

Heavy rains over the weekend may have contributed to a breach on the bank side of the cofferdam, causing it to fill with water. Crews worked to reinstall sheet piles to repair the breach earlier this week.

A second failure on the river side of the cofferdam occurred late yesterday, resulting in several sheet piles detaching and tilting into the river. Safety crews were on-site last night monitoring the situation. Damage assessments are currently underway and the focus is on securing the cofferdam against any further failure. No injuries were reported during this event.

The Partnership and its contractor’s first priority is safety. Crews will be working to stabilize and secure the sheet piles. Despite the breach, work will be able to continue within portion of the pump station that has already been constructed.

Neighbors may notice an increase in noise and potential vibration as crews work to repair the cofferdam. Updates will be provided once the approach to repairs is determined.

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