Loree Estates Outfall Repair

Project Updates

Summer 2020: Project substantially complete.

April 2020: Project added to the 2020 Ditch and Drainage Maintenance project.

Week of 11/25/19: Data collection is scheduled for the week of 12/2/19. This work will include surveying and a geomorphology assessment.


Project Description

The Loree Estates subdivision was constructed in the late 1970s. Over time, the stormwater outfall located between 20014 and 20028 SE 19th Street fell into disrepair and eroded into a tributary stream to Kanim Creek. The City temporarily stabilized the area with the addition of large rock. The Sammamish City Council adopted the 2019-2020 Biennial Budget, which includes funding for this project to install a tightline in the existing outfall location to prevent further erosion.


Data Collection Winter 2019
Alternatives Analysis / Design Spring 2020
Construction Summer 2020


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