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Oregon Watershed Enhancement Small Grant Awarded to MOA

 The Oregon Watershed Enhancement Board (OWEB) has awarded a small grant to the Owners Association for the removal of invasive species along a section of Summer Creek along the south side of Teal Blvd from Power Line crossing to the Chase Bank access road., around the fenced holding pond, the common area adjacent to the path behind 24 hour fitness between the lower parking area to the end of MOA common area at the east boundary of the amphitheater and along the trail between 155th and Teal. If funds allow there will be additional ivy and blackberry removal on the North side of Teal in the resource area east of the Power line crossing.  In addition to the project funding form the OWEB small grant additional assistance is being provided by the Owners Associations, Clean Water Services, City of Beaverton, Friends of Trees and community volunteers.

The grant was put together by Murrayhill resident Shelly Seger who has organized the SOLVE-IT projects along the stream for the past four years. This project will retreat some earlier planted areas and prepare sites in the areas listed above. Treatment will include chemical and mechanical treatments of invasive plant species.  Volunteer and contracted crews will plant native plants in newly treated areas during 2014-15.   Some spraying and site preparation for the restoration began October 23, 2013.  

The Healthy Streams Plan This creek restoration project is part of a larger award-winning regional program called the Healthy Streams Plan (HSP). The HSP outlines actions required to improve our region’s streams, wetlands, floodplains, and their surrounding buffer, or riparian zones. The HSP establishes goals for Washington County and its cities and has specific procedures and methodologies for these habitats.

What to Expect as the Creek Restoration Project is implemented October 2013—October 2014:  Site preparation that includes mowing, cutting and spot spraying of non-native vegetation including invasive Hawthorne and Cherry trees.Expert reforestation crews will begin through spraying of Himalayan blackberry near the stream areas and English ivy in the upland areas probably mid-October 2013.  Late fall 2013 or early winter, the crews will cut down non-native plants that are less than 6 inches in diameter and located on the restoration property. This vegetation is left on the ground as erosion control.  Removal work is carried out using chain saws. The work can be noisy, but should be completed in a day.  Restoration crews are trained to identify and remove only non-native plants.

Please note that the restoration areas can look brown and barren immediately after we have cut down non-native plants. This is normal, and the sites will return to a more natural, green state once replanting gets underway.

 Approximately 4 to 6 weeks after non-native vegetation is cut, the crews will return to spray any sprouting blackberry, ivy, or other non-native plant species with a short-acting, water-based herbicide. This method of weed removal is used because it achieves the greatest kill rate of non-native plants with the least amount of herbicide. In order to safeguard existing native plants, herbicides will be applied selectively targeting invasive plants (spot spraying)as opposed to spraying the entire area. The herbicides are non-toxic to fish and other aquatic organisms and are rated to dissipate from the contact area within 24 hours.

In late fall 2013 or early winter 2014, the reforestation crews will spray and cut stump invasive trees such as English hawthorn and cherry trees.  Where possible trees will be left onsite and those presenting pedestrian hazards will be chipped and removed.

February – March 2015:  Replanting the restoration site with approximately 3700 bare root native plants with contracted and volunteers crews.   The site will be planted with over 20 different species of native shrubs and trees.

Spring – fall 2015.   Spot spray as needed.  Interplant native plants if needed.

Twice a year for the next 2 years (2016-2017) – New plantings will be maintained to ensure success.

Depending upon the condition of the plantings and the site, this bi-annual maintenance will include spot spraying by a contracted crew, there may be additional native planting, and girdling of non-native trees over 6 inches in diameter.

VOLUNTEER: To volunteer for upcoming planting events please contact Pam Mizuo at 503-524-4429 or


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