Taxiway B environmental assessment

King County International Airport-Boeing Field (KCIA or Airport), through the King County Department of Executive Services (Airport Sponsor), and in coordination with the Federal Aviation Administration (FAA), intends to undertake a variety of project improvements to meet current FAA safety and design standards at KCIA. Project improvements include relocating Taxiway B approximately 50 to 75 feet to the west and rehabilitating Runway 14R/32L. Other project components include, but are not limited to:

• Demolition and/or removal of pavement
• Demolition and relocation of the air traffic control tower (ATCT) and aircraft rescue and firefighting (ARFF) buildings
• Land acquisition
• Other support project components, such as stormwater facilities and fence construction.

To comply with the requirements of the National Environmental Policy Act (NEPA) and FAA Order 1050.1G, a Draft Environmental Assessment (EA) will be prepared for these project improvements. The Draft EA will describe the project improvements and the impacts associated with the implementation of the project improvements on environmental resource categories outlined in FAA Order 1050.1G. The Airport Sponsor is holding a scoping open house for the public and agencies to provide input regarding the issues to be addressed in the Draft EA. This scoping open house will describe the general characteristics of the project improvements and identify the environmental resource categories to be analyzed in the Draft EA.

Open House Presentation - April 15, 2026

Public meetings

Virtual

A virtual meeting about the Taxiway B project will be held via Zoom on Wednesday, October 14, 2026 from 11:30 a.m. to 12:30 p.m. Pacific time. Register for the virtual open house on Zoom.

In-Person

An in-person Public Open House about the Taxiway B project will be held on Wednesday, October 14, 2026 from 6 to 7:30 p.m. Pacific time. Stop by any time to hear from the project team.

KCIA Flight Service Station
6526 Ellis Ave. S.
Seattle, WA 98108

Registration is not required for the in-person meeting.