Pearl Street Drainage Improvement Project

The City will make drainage improvements in west Beacon Hill.

Project Description

Reducing stormwater flooding and backups in your neighborhood
Seattle Public Utilities is working on a capital improvement project to upgrade the combined sewer infrastructure in Seattle's Beacon Hill neighborhood.  
 
The goal of the Pearl Street Drainage Improvement Project is to reduce storm-related sewer backups and flooding in the area, which will help protect public health and the environment as well as improve service reliability.
 
This project involves:

• Installing a new sewer pipe along Corson Ave S from S Ferdinand to S Dawson streets
• Building a large underground storage tank to capture sewage and stormwater during large storm events and then slowly release it into the pipes that run under S Dawson St (view underground storage tank)
• Constructing a small facility building on the south side of the intersection of Corson Ave S and S Dawson St (view facility building design)
• Expanding existing pipe between S Dawson and S Bennett streets using trenchless technology (i.e. no excavation for pipe installation) and installing a maintenance hole at the S Bennett street end
• Installing three aboveground electrical cabinets on the north side of S Dawson St

View the map of new sewer and drainage infrastructure to see what is being installed at S Dawson St near Corson Ave S.

Location

This project is located in west Beacon Hill near Maple Elementary School with work occurring on Corson Ave S from S Ferdinand to S Bennett streets, the street end of S Bennett St, and on S Dawson St between Corson Ave S and 12th Ave S. Most of the work will occur on S Dawson St. Visit project area map.

Anticipated Impacts

In general, you can expect:

• Construction noise, dirt, dust, and vibrations
• Crews typically work 8-hour days Monday through Friday. Evening or weekend work may occasionally be required. When possible, advanced notice will be provided.
• Increased construction traffic and staging of large equipment in the area
• Road/lane closures and parking restrictions near the work areas. Please pay attention to onsite signage and park your car in an alternative area, if needed, to avoid being towed.
• The contractor will coordinate garbage/recycling/compost pick-up and access for mail delivery for homes near construction. The contractor may relocate your garbage/recycling/compost bins, if needed, to facilitate pick-up. In the event of a missed pick-up, please contact the project team.
• The contractor will work to provide access for USPS and other delivery services, as needed
• Emergency vehicles will continue to have access to homes, if needed
• Paving and other restoration work, which may require temporary 24/7 closures, to be performed throughout construction

Community Engagement

Our email list will be the primary means of sharing timely information. Please subscribe to the project email list to receive construction updates.