Storm Drain Insert Reminder

–Builders Need to Inspect and Maintain Storm Drain “Socks”

With the onset of the rainy season, SDCI is reminding builders working in Seattle to inspect and maintain any temporary storm drain inserts they have installed as part of construction projects. The inserts, also known as storm drain socks, are used on many construction projects to catch sediment not captured by other required construction-related erosion control measures.

All construction sites must have on-site erosion control measures to prevent soil from washing away. The use of storm drain inserts is an added level of protection for water quality.

Stormwater Code standards for the use of the socks include the following:

  • Inspections by the builder should be made on a regular basis, especially after large storms. Inlet protection devices shall be cleaned or removed and replaced when sediment has filled one-third of the available storage. Product manufacturer standards should be followed.
  • Do not wash sediment into storm drains while cleaning. Spread all excavated material evenly over the surrounding land area or stockpile and stabilize as appropriate.
  • Only place the storm drain inserts in the area directly adjacent to the project site.
  • In the event of heavy rain, remove the socks to prevent local flooding.


For reference, see SDCI Director’s Rule 17-2017, SPU DWW-200, Stormwater Manual, Volume 2, Chapter 4, Section 4.3.3.

Any questions on active construction site drainage or erosion control measures may be referred to the SDCI Site Inspection Team at (206) 684-8600.

To help prevent flooding, the public is urged to clear clogged drains where it is safe and practical to do so. Flooding should be reported to Seattle Public Utilities at (206) 386-1800.

Community invited to learn about Laurelhurst Tennis Court drainage improvement project

Seattle Parks and Recreation invites the community to the Laurelhurst Community Club meeting on Monday, March 14, 2016 at the Laurelhurst Community Center, 4554 NE 41st St. Katie Bang, Seattle Parks and Recreation project manager, is on the agenda at 7:30 p.m. Seattle Parks and Recreation would like to thank the Laurelhurst Community Club for partnering with us.

This project replaces the Laurelhurst drainage system installed in the early 1900s. The existing lines are in poor condition. The goal of the project is to improve drainage of the tennis court and bang board courts, to reduce flooding, and to reduce ongoing maintenance needs.

The southern tennis courts will be closed this spring for construction. The courts are scheduled to be open in time for Summer Tennis Camp in late June. Seattle Parks and Recreation will work with the contractor to minimize impacts to the neighborhood and park.

For more information about the project please visit If you have additional questions about the project or would like to request accommodations or need an interpreter please contact Katie Bang at or 206-684-9286.

Community invited to learn about improvements for Golden Gardens Park drainage and stairway

Seattle Parks and Recreation is hosting a public design meeting for the Golden Gardens Park drainage and stairway renovation project on Wednesday, Oct. 7, 2015 from 7 – 8:30 p.m. at the Golden Gardens Bathhouse, 8498 Seaview Pl NW.

This meeting is an opportunity for the community to learn about the project.  Seattle Parks and Recreation staff and the design consultant, Osborn Consulting, Inc., will provide background information and the construction timeline for the upcoming project. 

This project provides drainage improvements and replaces the damaged stairway steps in the park from the lower park area to the dog-off-leash area. The purpose of the project is to renovate the existing storm drainage system and replace the damaged steps with a new stairway to improve the drainage system and related impacts such as hillside erosion. The work will be done in accordance with environmental and regulatory requirements.

We anticipate construction to begin by the end of 2015 and be completed in early 2016.

For more information on this project, please visit

For more additional questions about the project or to request special meeting accommodations please contact Seattle Parks and Recreation, Capital Project Coordinator, Robert Lee at or 206-386-4388.

City Seeking Community Input on Projects in Delridge

The City of Seattle is collaborating with the North Delridge community to produce a shared vision and action plan to continue improving the health and equity of the Delridge community.

Delridge is an area in West Seattle with a rich heritage that is home to diverse communities and organizations. Over the years, the residents of Delridge have worked with the City to create neighborhood assets such as the Youngstown Cultural Arts Center, Longfellow Creek Legacy Trail, Cottage Grove Park, and affordable housing options. Fifteen years have passed since the Delridge community completed their neighborhood plan and there are new opportunities to seize and challenges to meet. DPD and Department of Neighborhoods (DON) are leading the development of an “Action Plan” for the North Delridge area. They are co-hosting a public workshop with the Seattle Department of Transportation (SDOT), Seattle Public Utilities (SPU) and Seattle Parks and Recreation (Parks) to integrate multiple projects into a large community workshop.

Share your ideas about transportation, community development, drainage, and parks at our workshop.

Saturday, June 6
9:30 a.m. to Noon.

Southwest Teen Life Center
2801 SW Thistle Street

Light snacks and childcare will be provided.

SDOT will share existing conditions information and learning how the community currently uses the street, what works, what needs improvement, and what ideas they have about how the street could look and function in the future. The Delridge Way SW Multimodal Corridor Study seeks to transform Delridge Way SW (from SW Roxbury St. to the West Seattle Bridge) into a safer and healthier public space with more predictable movements of people and goods.

DPD is working with the Delridge community (primarily within the neighborhood planning area to the north of SW Elmgrove Street) to develop a shared vision and action plan for a healthy Delridge. At this workshop, the project advisory team and City are seeking review and comments on the potential steps the City and neighborhood can take to realize community goals, including: creating great community places along Delridge Way; addressing drainage and flooding; supporting on the Delridge Grocery Cooperative to increase access to healthy food; making walking, biking and taking transit an easy choice; and growing community capacity to take action.

SPU is developing a Natural Drainage Systems (NDS) Partnership Program. This program will achieve the water quality goals identified in the Plan to Protect Seattle’s Waterways by working with sister agencies and community partners to deliver high-value neighborhood improvements. SPU wants to know where in the Longfellow Creek watershed neighbors think natural drainage systems could meet neighborhood goals by overlapping with the Delridge Neighborhood Planning and the Multimodal Corridor planning efforts.

For more information:

  • Visit DPD’s web site and sign up to receive updates
  • Visit SDOT’s web site and take an online survey and share your thoughts about the future of the Delridge Way SW corridor
  • Visit SPU’s web site to learn more about natural drainage systems

Department of Planning and Development
David Goldberg, Planner
(206) 615-1447

Seattle Department of Transportation
Sara Zora

Seattle Public Utilities
April Mills