2002-01-01
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The City of SeaTac conducted an environmental review of the Des Moines Creek Basin Restoration Projects, a multi-agency effort involving the cities of SeaTac and Des Moines, the Port of Seattle, and King County. The project aims to improve water quality, reduce flooding, and restore fish habitat along Des Moines Creek by building a new detention facility, installing a high-flow bypass pipe, and maintaining low-flow water levels during dry summer months. The city's staff determined that the project does not require a full Environmental Impact Statement, as it is not expected to have a significant adverse impact on the environment.
A map document (POS 714, section 5.30) from the Sea-Tac Communities Plan, sponsored by the Port of Seattle and King County, depicting the Miller Creek Basin and Des Moines Creek Basin drainage areas with waterways shown in blue. The document is part of a regional planning effort covering communities in the Sea-Tac area of King County, Washington.
A planning map from the Sea-Tac Communities Plan, sponsored by the Port of Seattle and King County, showing the Des Moines Creek Basin holding pond locations (labeled a through f) in relation to Seattle-Tacoma Airport and surrounding areas, including Hog Lake. A note indicates ponds are not shown to scale and locations indicate general vicinity only.
2024-12-10
Commission misses opportunity to protect and maintain Des Moines Creek Trail Our comments on Item 8j ( Memo , Presentation ) where the Port Commission voted to renew the Des Moines Creek Basin Plan V5. The original 1997 plan came out of two practical concerns: hydrology and environmental. The airport plateau is the source of most
2024-12-10
The Port of Seattle is seeking authorization to enter into a fifth Interlocal Agreement (ILA V) with the Cities of Des Moines and SeaTac to continue restoration projects along Des Moines Creek, contributing $89,304 per year over a 20-year period. This agreement is the latest in a series dating back to 1995, through which the Port, neighboring cities, King County, and the Washington Department of Transportation have collaborated on stormwater management and environmental restoration in the creek basin near Sea-Tac Airport. The ongoing work addresses the airport's environmental impact on local waterways and reflects a long-term regional commitment to creek basin planning and habitat restoration.
2024-11-01
The Port of Seattle is seeking authorization to enter into a 20-year Interlocal Agreement with the Cities of Des Moines and SeaTac to continue the Des Moines Creek Basin Plan, which manages drainage, flooding, erosion, fish habitat, and water quality issues near Seattle-Tacoma International Airport. The Port would contribute $89,304 per year, covering ongoing operation and maintenance, habitat monitoring, and infrastructure improvements for facilities such as the Regional Detention Facility and High Flow Bypass Pipeline. This cooperative regional effort reduces costs for all parties and supports the airport's stormwater management and environmental compliance obligations.
2023-08-12
This presentation by King County Department of Natural Resources & Parks outlines a holistic approach to restoring Des Moines Creek and its surrounding watershed, located in King County, Washington. It covers basin planning, environmental modeling, regulatory considerations, and project costs and scheduling. The project aims to address watershed health through comprehensive assessment and coordinated restoration strategies.
2023-04-05
PDF Print Version Meeting Purpose and Agenda Goal: Decide what is important to include in next ILA. How: Review previous studies, committee accomplishments, and current basin conditions. Discuss what has worked well, what needs improvement, and what the overall desires are of the committee members. Decide on some workable options for moving forward. Committee Origination
CLIENT King County Water & Land Resource Division Location SeaTac, WA The Des Moines Creek Regional Detention/ Retention Facility (RDF) is intended to provide stormwater storage, reduce peak flows and erosion, enhance habitat, and protect the Des Moines Creek Watershed. During RDF’s initial design, the team identified elevated levels of arsenic in site wetland soils proposed for
2004-04-19
A Port of Seattle resolution authorizing the Chief Executive Officer to execute version two of an Interlocal Agreement with the Cities of Des Moines and SeaTac, Washington State Department of Transportation and King County to fund, construct, operate and maintain capital projects necessary to implement the Des Moines Creek Basin Plan. The projects include construction