Scappoose Drainage Improvement Company

Following the decision to rebuild the Evans pump #2 in 2021 for mechanical wear issues, but unexpectedly discovering severe cavitation damage to the propeller and diffuser housing it was decided that all three remaining Evans pumps need to be visually inspected for the same damage.  During this investigation, it was discovered that cavitation was affecting all the pumps to varying degree, but that…

In 2019 the Evans pump #2 experienced a small electrical fire within the motor.  Vibration testing conducted in 2020 showed alert levels in the motor originating from the pump.  In 2021 the SDIC board of directors decided to rebuild both the pump and motor.  Though motor rebuilds have been completed in the past, pump rebuilds to the Evans had not been completed since the United States Army Corp of…

In December of 2020, the Smith Pumping plant original wood and concrete foundation failed.  Large sinkholes developed where the foundation began to collapse.  The pumps were removed to be used later, but the foundation needed to be replaced.

Deer Island, OR - May 26, 2020 - Columbia River PUD awarded the Scappoose Drainage Improvement Company (SDIC) an Economic Development Grant for $7,500. The PUD's Board of Directors approved the grant request during their May 19 meeting.