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Johnson Creek Watershed Council

1900 SE MILPORT RD
MILWAUKIE, OR  97222 

Coordinator:  Matthew Clark
E-mail: matt@jcwc.org              Website:www.jcwc.org

The Council meets the third Tuesday of each month from 5:30 to 7:30pm at the above address.

Invasive species control is a constant battle in the Johnson Creek watershed, but the success of a recent program to eradicate Japanese knotweed has shown the benefits of diligence and persistence. Launched in 2006, the knotweed project has seen the cooperation of over 200 landowners and the hard work of our riparian field crews yield impressive and tangible results. We have treated over 480 acres of the invasive weed (over 40,000 stem injections!), leading to control of knotweed along 95% of the creek. Our work doesn’t end there, though; we’ve begun native plant re-vegetation in treated areas, restoring them to a more natural and diverse state.

Johnson Creek 09 atlas image

Volunteers remove invasive species along a riparian area in the Johnson Creek watershed.



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