This April 2023 presentation by Erin Nelson outlines options for the Des Moines Creek Basin Committee as it prepares to renew its Interlocal Agreement (ILA), a cooperative arrangement among local jurisdictions managing the creek basin near Des Moines, Washington. The meeting agenda covers a review of past studies and committee accomplishments, a discussion of what has worked and what needs improvement, and a decision on workable paths forward. While focused on stormwater and creek basin management rather than airport noise policy directly, the Des Moines Creek basin is located adjacent to Sea-Tac Airport and its management is relevant to the broader environmental context of the surrounding area.Open full document
Notes
Presentation by Erin Nelson dated April 5, 2023, prepared for the Des Moines Creek Basin Committee covering options for the next Interlocal Agreement (ILA). Reviews previous studies, committee accomplishments, and current basin conditions including infrastructure features such as Northwest Ponds, Des Moines Creek Retention/Detention Facility (RDF), Tyee Pond, Tyee diversion pipe, West Berm, East Berm, sediment trap, and high-flow bypass pipe. Agenda items include discussion of what has worked well, what needs improvement, and committee member priorities for moving forward.