Item No.
Date of Meeting

8f_supp
May 26, 2026

S Concourse Evolution and 188th Duct Bank Crossing
Construction Authorization

Background
• The SCE Project is a critical infrastructure renewal effort at SEA, addressing the 53-year-old
facility's seismic, structural, and code compliance needs while enhancing the passenger
experience. SCE project will renew this important regional facility through two main
objectives:
o Extend the useful life and bring the facility up to current code
including structural and seismic upgrades
o Re-purpose space left vacant by services relocated to the
International Arrivals Facility (IAF) and enhance the passenger
experience by increasing amenities, expanding dining and
retail (ADR) opportunities, and elevating the level of service.

2

188th Street Duct Bank Authorization

This action is to authorize the construction of limited utility infrastructure scope along 188th
Street. This work connects the electrical substation to S Concourse and is a necessary
prerequisite for SCEs future power requirements.
Scope elements include:
• Duct Bank
• Electrical Equipment
• Retaining Wall
• Electrical Vaults
• Equipment Pads
• Other ancillary electrical items

3

Pre-construction Authorization
This action is to increase authorization necessary to complete all pre-construction activities for
S Concourse Evolution Program.

Increased authorization supports:
• Project Management
• Construction Management
• Design Services
• Special Testing and Inspection
• Contractor led efforts associated with
developing the Maximum Allowable
Construction Cost (MACC)
Request $38,610,000 authorization
4

Questions

5