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Environmental Services

working for clean rivers

Phone: 503-823-7740

Fax: 503-823-6995

1120 SW 5th Avenue, Suite 1000, Portland, OR 97204

Watershed Revegetation Program

Portland’s Watershed Revegetation Program has four project areas.

Watershed Revegetation Program

River View Natural Area before restoration

River View Natural Area before restoration

Riverview after restoration

River View after restoration

a restored portion of Veterans Creek

Restored portion of Veterans Creek

new trees in the NW Industrial District

Newly-planted trees in the NW Industrial District

Willamette Park swale

Willamette Park swale

Natural Areas Restoration and Management

This project began in 1995 in the Columbia Slough watershed and today is active in all Portland watersheds. The Reveg team works on restoration projects with other City of Portland bureaus and many public and private groups. The restoration work improves water quality, controls erosion, reduces stormwater pollution, and enhances fish and wildlife habitat.

Recent Projects

In fall 2011, the Revegetation team began treating English ivy and removing English holly and laurel in the 146-acre River View Natural Area in southwest Portland. The forested site has several spring-fed streams that contribute clean, cold water to the Willamette River.

  • In summer 2010, the team removed two culverts and four constructed rock waterfalls that blocked fish passage on Veterans Creek, a Johnson Creek tributary. The work included reconstructing the stream channel with boulders and logs, creating riffles and pools, adding off-channel backwater areas for high-flow refuge, and revegetating streambanks.
  • The team works with the Portland Water Bureau and Portland Parks & Recreation to restore habitat at Powell Butte Nature Park. The Revegetation team has removed over 150 acres of invasive English hawthorn and Himalayan blackberry, and planted over 27,000 native trees and shrubs on 95 acres.
  • Since 2000, the team has restored segments of the Willamette Bluffs to improve plant diversity and wildlife habitat, reduce invasive vegetation and prevent wildfire hazards. In north Portland, there is work between the University of Portland and between North Interstate and Greeley avenues on slopes as steep as 180 vertical feet. In southeast Portland, the Revegetation team is working on restoration between the Ross Island and Sellwood bridges, including the Oaks Bottom Bluff and the river bank.

Seed Bank

Throughout Portland, English ivy and other invasive species have compromised native understory plants. The Revegetation team works with regional partners and private contractors to collect and grow native

groundcovers (e.g., fringecup, Pacific waterleaf, large-leaf avens) that aren’t commercially available to produce seeds and create a sustainable regional native seed source.

Urban Tree Canopy Program

This program works with community partners to help Portland reach its stormwater management, tree canopy cover and carbon reduction goals. The team partners with property owners, neighborhood associations, schools, and other organizations to plant street trees, large native trees in rights-of-way and at schools, and to pilot innovative planting models to get more trees in low-canopy areas. For more information about tree planting opportunities, recent projects and incentives, visit the Urban Tree Canopy Program page.

Recent Projects

The program has been involved in recent tree-planting projects in south Portland, Hillsdale, South Burlingame neighborhoods and in the Northwest and Central

Eastside Industrial areas. The tree team is also planting large, native street trees in east side neighborhoods, and staff is also involved in tree-planting along the I-5 sound wall in north Portland, at five Portland schools and in several parks. Get more information about the Urban Tree Canopy Program.

Stormwater Management Facilities Program

This team designs, plants, inspects, and maintains stormwater management facilities, which include stormwater ponds and green streets. In 2011, the Revegetation program team designed and constructed the Willamette Park Swale to capture and treat stormwater runoff from the parking lot adjacent to the river. The team also provides long-term maintenance for about 900 green streets in Portland, and that number is growing all the time. The Stormwater Management Facilities team helps the public understand green street benefits and how green streets work.

Learn more about Portland’s Green Street Steward Program.

Early Detection Rapid Response (EDRR) Program

This program works on the early eradication of targeted nuisance species. Controlling invasive plants before they gain a foothold is more cost-effective than managing them after they become established.

The EDRR team maps and treats new plants of concern, and provides residents with information about invasive plants. The team works on public and private land, in cooperation with local agencies and nonprofit groups.

Get more information about the EDRR Program.

Other Links

For More Information

Contact Michele Juon, Watershed Revegetation Program Manager, at 503-823-2365.