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Coal Creek sewer upgrade

The Coal Creek Sewer Upgrade Project will install new sewer pipes to carry more wastewater and meet the growing needs of Bellevue and Newcastle.

Project description

The Coal Creek Sewer Upgrade Project will upgrade a regional sewer line that serves Bellevue and Newcastle. Built between 1966 and 1991, the existing pipeline is nearing its maximum capacity and needs to be upgraded to carry more wastewater and meet the growing needs of the community.

Once installed, the new sewer pipe will serve the area for another 50 years or more.

Project update

August, 2023 

Learn how we’re protecting and restoring the Coal Creek project area 

We know that people are interested in what we are doing to protect and restore the Coal Creek Natural Area during this project. Check out our winter 2023 newsletter to learn about what you can expect to see during and after construction.  
View the newsletter here Also, look for upcoming opportunities to visit and learn about the project site! 

Select the "Sign up here" button in the Stay informed box to get updates, surveys, notices, and other information by email and/or text. You can unsubscribe anytime. 

Previous project updates

Project location