Item No.
Date of Meeting

10b_supp
October 28, 2025

2026 Airfield Projects and SCE Spot 99 Utility Scope
Construction Authorization
(CIP# C801379 & C801203)
Seattle-Tacoma International Airport

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
Amount of this request:
Total estimated project cost:

2026-2030 Airfield Program
(CIP# C801379)
$64,400,000
$400,000,000

SCE Program
(CIP# C801203)
$8,640,000
$2.25B
2

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.
• 2026-2030 Airfield Program
• S Concourse Evolution
(C801379)
Program (C801203)
- Airfield infrastructure renewal and
- This work is needed to provide
replacement, as well as projects needed
to provide safe and efficient conditions
for aircraft operations at SEA and meet
FAA and other regulatory requirements.

new electrical infrastructure to
the S Concourse.

3

2026 Airfield Contract #1 - federally funded
• 2026-2030 Airfield Program (C801379)
- Replacement of distressed pavement, aging and failing utilities, nonstandard 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
4

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
Construction Contract #

Contract #1

Contract #2

Construction start

2026 Quarter 2

2026 Quarter 1

In-use date

2026 Quarter 4

2026 Quarter 4

8

2026 Airfield Projects & SCE Spot 99 Utility Scope
Budget
CIP Name/#

Amount of
this Request

Amount
Authorized to
Date, incl. this
Request

Total Estimated
Project Cost

2026-2030 Airfield Program
C801379
S Concourse Evolution
Program C801203
Total Authorization of this
Request

$64,400,000

$135,698,000

$400,000,000

$8,640,000

$261,390,000

$2.5B

$73,040,000

9

Thank
You!

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Port of Seattle

FlySEA.org
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