Tualatin Hills Park & Recreation District

Jenkins Estate -- natural area restoration, trail improvements

Bond Category:Natural Area Preservation
Site Address:8005 SW Grabhorn Rd
Beaverton OR 97007
Status:Land Use/Permit Phase
Master Plan Start:November 2014
Construction Start:May 2015
Construction Finish:December 2020
Estimated Public Opening:park open during construction
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Project Summary & Public Benefits

The 68-acre Jenkins Estate on the northwest slope of Cooper Mountain in Aloha offers an exceptional opportunity for those seeking outdoor recreation. With several walking trails through the forested acreage, gardens near the restored country estate and wildflower meadows, Jenkins Estate is a jewel in THRPD's crown.

But over the years, non-native plants have invaded the forested areas. With funds from the 2008 voter-approved bond, THPRD's Natural Resources Department has been able to plan two phases of large-scale weed removal and trail improvement projects at Jenkins Estate.

Area with overgrown invasive plants.

Phase I of the restoration project took place from June 2009 through early spring 2013. Invasive blackberry, ivy, holly, hawthorn, cherry and other weedy species were removed before contractors installed 32,000 native trees and shrubs

Same area after restoration.

To enhance visitor experiences and create larger blocks for wildlife habitat, illegal trails were either removed or rerouted, some new trails were built, and some existing trails were enhanced.


Phase II work, which will include further restoration to the southern 28 acres of forested land, will begin in May 2015 and will continue through the end of 2020.

Contractor selection process will begin in April 2015, initial weed treatments will begin in summer 2015.

Project Budget

Phase I - $135,200

Phase II - TBD

Contact Information

Please direct bond project-related comments or questions to Melissa Remick via email, by phone at 503/629-6305 or electronically via THPRD's web contact form.

Contractor Information

Phase I - Native Ecosystems NW

Phase II - TBD

15707 SW Walker Rd, Beaverton, OR 97006


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