2026 Airfield Projects and SCE Spot 99 Utility Scope
Construction Authorization
(CIP# C801379 & C801203)
Seattle-Tacoma International Airport
10b_supp
Item No.
October 28, 2025Date of Meeting
2026 Airfield Projects & SCE Spot 99 Utility Scope
• Request Commission authorization for the Executive Director to
- Advertise and execute two construction contracts for 2026
Airfield Projects and limited utility installation scope in S
Concourse Evolution (SCE) Program located in the S Concourse
Taxilane between the Southwest Corner of the S Concourse and
the Cargo 7 hardstand area (Spot 99);
- Authorize use of Port crews for abatement work.
• The total amount of this authorization request: $73,040,000
2
SCE Program
(CIP# C801203)
2026-2030 Airfield Program
(CIP# C801379)
$8,640,000$64,400,000Amount of this request:
$2.25B$400,000,000Total estimated project cost:
2026 Airfield Projects & SCE Spot 99 Utility Scope
Two construction contracts are comprised of interdependent Capital
Improvement Projects (CIPs) with overlapping design functionality,
interdependent operational impacts, and shared 2026 schedule
milestones.
3
• S Concourse Evolution
Program (C801203)
-
This work is needed to provide
new electrical infrastructure to
the S Concourse.
• 2026-2030 Airfield Program
(C801379)
– Airfield infrastructure renewal and
replacement, as well as projects needed
to provide safe and efficient conditions
for aircraft operations at SEA and meet
FAA and other regulatory requirements.
2026 Airfield Contract #1 – federally funded
4
• 2026-2030 Airfield Program (C801379)
– Replacement of distressed pavement, aging and failing utilities, non-
standard flush fire hydrant access hatches, electrical circuits, lighting
fixtures and signs at RW 16C/34C, connecting taxiways, infield areas
and vehicle service road;
– Removal of turf edge dams, mitigation of ponding spots and
installation of anti-perching devices at RW 16C/34C, connecting
taxiways and infield areas.
Entitlement Funds Anticipated in 2026: ~$15M
2026 Airfield Contract #2
• 2026-2030 Airfield Program (C801379)
– Replacement of distressed pavement at TW B, North Concourse
taxilane and Cargo areas.
• S Concourse Evolution Program (C801203)
– Installation of power utility duct bank in Spot 99 area, which is a
critical taxiway around the S Concourse.
5
2026 Airfield Contracts Map
6
2026-2030 Airfield Program Overview
7
2026 Airfield Contracts Schedule
8
Contract #2Contract #1Construction Contract #
2026 Quarter 12026 Quarter 2Construction start
2026 Quarter 42026 Quarter 4In-use date
2026 Airfield Projects & SCE Spot 99 Utility Scope
Budget
9
Total Estimated
Project Cost
Amount
Authorized to
Date, incl. this
Request
Amount of
this Request
CIP Name/#
$400,000,000$135,698,000$64,400,000
2026-2030 Airfield Program
C801379
$2.5B$261,390,000$8,640,000
S Concourse Evolution
Program C801203
$73,040,000Total Authorization of this
Request
Operated by the
Port of Seattle
FlySEA.org
Thank
You!
10
