Contact Us

Alexis Barton, Program Coordinator
Cell: 530 (not 503) 902-7528

Terri Preeg Riggsby, Executive Director
971 404-4909

Mailing Address:
Tryon Creek Watershed Council
P.O. Box 1456
Lake Oswego, OR 97035

We are no longer housed at the Tryon Creek State Natural Area (11321 S Terwilliger Blvd) and are working from home. When public safety permits in-person meetings, we will continue to host our monthly Board Meetings and convene quarterly cross-partner Stewardship Committee Meetings at the TCSNA.

Mission Statement

The Tryon Creek Watershed Council restores, protects and enhances the ecological health and function of our unique urban watershed.

What We Do

Click here to read the Tryon Creek Watershed Council 2019-2020 Year in Review! (Suggest downloading to Adobe to view page spread view, or in web reader enable two-page view via options in upper-right corner)

Click here to read the Tryon Creek Watershed Council 2018-2019 Year in Review!

We manage projects and coordinate partnerships to restore riparian native vegetation on streambanks, focusing on private properties along key wildlife corridors, neighboring green-spaces, and land adjacent to existing restoration sites. The Stone Bridge Culvert Replacement Project on Nettle Creek is an example of our work to remove fish passage barriers. We advocate for watershed health and support partners who’s projects align with our mission such as the Boones Ferry Culvert and the Highway 43 Culvert projects. We monitor watershed health.

TCWC History

The Council has been actively bringing the community together since 1994 when a small group of concerned citizens joined forces to become stewards of our natural heritage.  TCWC worked under the fiscal sponsorship of Southwest Neighborhoods, Inc. and then the Friends of Tryon Creek until receiving 501(c)(3) status in 2014.

Non Profit Status

Tryon Creek Watershed Council is a nonprofit charitable organization with tax-exempt status under section 501(c)(3) of the Internal Revenue Code and is eligible to receive tax-deductible contributions. Our EIN number is 46-3898313.


Tryon Creek Watershed Council Bylaws (Adopted December 13, 2013)