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Building inclusive, safe and livable neighborhoods and communities.

ONI Main: 503-823-4519

City/County Info: 503-823-4000

TDD: 503-823-6868

1221 SW 4th Ave, Suite 110, Portland, OR 97204

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Tryon Creek Stream Bank Stabilization Project: Construction starts early September

Tryon Creek Stream Bank Stabilization Project: Construction starts early September

This project will reduce erosion, help stabilize the Tryon Creek stream bank near its confluence with the Willamette River, and improve Tryon Creek water quality. Realigning a portion of the creek and adding boulders and large wood will also protect the Tryon Creek Trunk Sewer.

Construction is expected to start after Labor Day weekend and will continue until early October 2014. The contractor will use SW Stampher Road to access the site with smaller construction vehicles. On two occasions, unloading and transporting supplies to the construction site will temporarily restrict traffic lanes on Highway 43. SW Stampher Road and all driveways will be accessible to residents during construction.


  • Standard City of Portland construction hours are 7:00 a.m. to 6:00 p.m. Monday through Friday. There may be work during the same hours on Saturdays if needed.
  • Sewer and other utilities will remain in service during construction.
  • Construction creates noise, vibration and dust and disrupts normal neighborhood activity.
  • The contractor will maintain local access, but you may experience some delays.
  • A variety of factors, including conditions underground, weather, subcontractor schedules, and availability of materials, may cause periods of inactivity.
  • A BES inspector will be on‐site during work hours and may be able to assist you with any immediate needs during construction.
  • Please stay clear of all construction activities. Please keep your children and pets from harm and instruct them to stay clear of all construction activities.



Learn more about this project at

Thank you for your cooperation during this project. Please let us know if you have concerns such as business operations, disability issues or medical or business deliveries. As always, we’ll strive to provide quick response to your concerns, minimal disruption of your residence or commercial business, and open and honest communication with you throughout the project.

Debbie Caselton

Community Outreach

City of Portland Environmental Services

1120 SW 5th Ave, Room 1000, Portland, Oregon 97204

Phone: 503-823-2831


Working for clean rivers

Stormwater runoff can impact water quality in rivers and streams. Natural resources, like urban streams, forests, and wetlands manage stormwater naturally to protect water quality, public health, and the environment. Green infrastructure reduces flooding and erosion, provides cool, clean water to our rivers and streams, and adds wildlife habitat and urban green space for healthier watersheds. Learn more at