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Flood Control District approves $1.74 million Parametrix amendment for Lower Green River plan
Summary
The King County Flood Control District on Feb. 11 adopted a resolution authorizing the chair to sign a third amendment with Parametrix for project management and plan development work on the Lower Green River Corridor, not to exceed $1,739,408.24 over 24 months.
Chair Reagan Dunn called the King County Flood Control District Board of Supervisors to order on Feb. 11, 2025, and the board voted 9-0 to adopt proposed resolution FCD 2025-03, authorizing the chair to enter into a third amendment with Parametrix for project management services supporting the Lower Green River Corridor Flood Hazard Management Plan and Programmatic Environmental Impact Statement (PEIS) process. The amendment is for an amount not to exceed $1,739,408.24 and a term of 24 months.
Stephen Shower, deputy executive director of the King County Flood Control District, summarized the amendment and the work that Parametrix will perform. Shower said the district is transitioning from the PEIS phase into the corridor plan and capital investment strategy phase and described the 2024 PEIS as “the largest and most challenging integrated floodplain management program envisioned for the Central Puget Sound area in our state's history.”
Under the amendment, Parametrix will provide project management and technical support across defined tasks: overall project management (monthly invoices, progress reporting, meeting notes); organizing and preparing meetings and an annotated plan outline; planning for engagement and an engagement plan that reflects district feedback; content development including briefing papers or technical memoranda for six topic areas; engagement summaries including community navigator activities and tribal correspondence drafts; preparation of draft and final plan documents; outreach and web content for the plan and capital investment strategy; and development of an unprioritized list of projects and actions to be included in the capital investment strategy.
The staff report noted that approval of the amendment is administrative and does not change the authorized project budget, and that legal counsel reviewed the amendment. Vice Chair Perry moved the item; the clerk recorded 9 ayes and 0 noes. The resolution was adopted.
The board’s action advances work to convert technical and community-engagement outcomes from the district’s PEIS into a corridor plan and capital investment strategy, with deliverables intended to inform future project prioritization and outreach. The contract term and stated deliverables set the district’s next two-year timeline for drafting and revising plan materials and preparing outreach and tribal correspondence.
