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We’ll be making sewer and drainage improvements in Broadview neighborhood.
The Broadview neighborhood has longstanding sewer and drainage problems. During heavy rains, water can overwhelm Broadview’s sewer system and cause sewage backups into homes, which is a serious public health issue. Stormwater runoff can also flow from streets onto private property and cause damage. Broadview’s high water table, steep bluff, lack of consistent drainage and aging sewer pipes contribute to the complexity of these issues.
Since 2012, Seattle Public Utilities has been working with the community to identify sewer and drainage projects in the areas of Broadview that are most impacted. The project team completed a detailed analysis and recommended preferred options.
This project will improve drainage in the 12th Avenue NW drainage system (pdf), along 11th Avenue NW between 120th and 122nd streets. It will reduce storm-related flooding by slowing runoff and improving flows, and its design will allow for future drainage work upstream of the project area. The project will:
Estimated budget: $4.9 million
Stormwater that enters sewer pipes is the main cause of sewer backups in the Dayton Ave N area (pdf). To reduce sewer backups, this project will:
Estimated budget: $13.7 million
Learn more about how these projects were selected for the Broadview Sewer and Drainage Improvement Program (pdf).
The overall project goal is to reduce the potential for sewer backups and surface flooding for the Broadview neighborhood.