Both of King County’s West Seattle projects to reduce combined-sewer overflows (CSO) are proceeding, and we have updates tonight.
In the area of Sunrise Heights/Westwood where the map above is shaded – part of the “basin” feeding the Barton pump station north of the Fauntleroy ferry dock – the plan is to install “green stormwater infrastructure” including rain gardens, and another round of field work is imminent, according to spokesperson Annie Kolb-Nelson. She says residents in the affected area have been sent a letter (see it here), and will get more notification whenever something is happening on their block, but they wanted to get wider word out too. This is what will be happening, according to an online update about the project:
• Project team members conducting land and utility surveys, and looking at topography, stormwater and groundwater patterns, existing parking strip uses, trees, driveways, accessibility for residents with disabilities, and other physical features of the project area
• Geotechnical borings to better understand soil and groundwater conditions
• Infiltration testing to see how long it takes water to soak into the ground
• Parking and traffic pattern survey
• Potential installation of additional groundwater monitoring wells
• Examination of roof downspout connections/disconnections to the existing combined sewer system
All that will start over the next few weeks, Kolb-Nelson tells WSB. There’s also a map showing specific properties in the project area – you can see that here. The county says construction won’t start until 2013.
We also asked what’s new in the neighborhood that is going to be affected by the plan for the basin feeding the Murray pump station at Lowman Beach Park, where a separate pump-station maintenance project is under way right now. For Murray, you may recall, the county has decided to build a huge underground storage tank across the street from the park, which requires buying and demolishing the residential properties that are there now. Kolb-Nelson says, “We’re in contact with property owners and have begun making offers. We’re also notifying people about eligibility for relocation benefits.” She adds that community meetings are planned next month, but the dates aren’t set yet. This project also is set for construction in 2013; an aerial view is here.