TagSAMP(336)

Agenda for the Des Moines Airport Advisory Committee meeting covering approval of minutes, complaints/communications, StART meeting update, SAMP update, and workplan amendment discussion. Includes items about supporting city response to SAMP Draft EIS, public education efforts, and mitigation measures research.

The Des Moines Airport Advisory Committee met on April 13, 2026, and is scheduled to meet again on May 11, 2026, to discuss issues related to Seattle-Tacoma International Airport's impact on the Des Moines, Washington community. Key agenda topics include updates on the Sustainable Airport Master Plan (SAMP) and its Draft Environmental Impact Statement, as well as a proposed workplan amendment covering noise and traffic mitigation measures, public education efforts, and a community survey. The committee also seeks a more comprehensive traffic analysis that accounts for impacts from the completed WSDOT Highway 509 project.

This Commission agenda memorandum briefing provides an overview of the SEPA Draft Environmental Impact Statement (DEIS) findings for the Sustainable Airport Master Plan (SAMP) Near-Term Projects, to be published May 22, 2026. The DEIS evaluated sixteen environmental resource categories, identifying significant but mitigable impacts to surface transportation. The briefing also outlines a 60-day public comment

A slide titled 'SAMP Near-Term Projects' presents an aerial map of Seattle-Tacoma International Airport identifying planned near-term capital improvements including a Second Terminal, North Gates, Taxiway A/B and D Extensions, Runway Blast Pads, Hardstand areas (Central and North), Busway and Stations, Roadway Improvements, Fuel Farm Expansion, ARFF Relocation, Westside Maintenance Campus, C4S Warehouse Redevelopment, Off-site Cargo, and a Centralized Receiving and Distribution Facility. The slide is labeled page 3 and uses a color-coded legend distinguishing new terminal, maintenance, cargo, support facilities, hardstand pad, existing buildings, new pavement, and demolition areas.

A project timeline slide showing the environmental review process for a Sea-Tac Airport project, currently at the Draft SEPA EIS Publication stage (5/22/26). Key milestones include the Final NEPA FEA & Decision (9/26/25), Draft SEPA EIS Agency & Public Review, Final SEPA EIS & SEPA Decision (Q4 2026), and Commission Action Required for NTP(s) approval in 2027.

A slide titled 'SAMP Near-Term Projects' presents an aerial map of Seattle-Tacoma International Airport identifying planned near-term capital improvements including a Second Terminal, North Gates, Taxiway A/B and D Extensions, Runway Blast Pads, Hardstand areas (Central and North), Busway and Stations, Roadway Improvements, Fuel Farm Expansion, ARFF Relocation, Westside Maintenance Campus, C4S Warehouse Redevelopment, Off-site Cargo, and a Centralized Receiving and Distribution Facility. The slide is numbered page 3 and uses a color-coded legend distinguishing new terminal, maintenance, cargo, support facilities, hardstand pads, existing buildings, new pavement, and demolition areas.