Item No.              10c_supp
Date of Meeting      May 14, 2024
S Concourse Evolution Facilitating Projects
Design Authorization

Presenters:
Chris Coulter – Sr Manager AV Capital Programs
John Freeman – SCE Capital Program Leader

     •  The S Concourse Evolution project (SCE) is a part of Upgrade
SEA.
•  Collaboration from project team happening across airport
teams.
•  Updates will be communicated pre-construction with media
moments and tours, social media, and information on website
project page.
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             S Concourse Evolution (SCE)
– This project will renew the existing S Concourse
facility to support airport operations for another
50 years.
•   Primary objective is to extend the useful life and
meet current code including Structural/Seismic
Upgrades.
•   Secondary objective is to enhance passenger
experience, including Increased passenger
Amenities/Level of Service and Increased ADR
Opportunities.
– This project does not increase the number of
gates or increase the overall capacity at SEA.
– Project team has selected a designer,
GC/CM, project management/controls support,
and commission agent. Project is starting 30%
design.

     Construction Impact on Airport Operations
•   Performed comprehensive planning effort with Airlines and SEA Operations, Customer Experience, and
other SEA Stakeholders to determine how best to offset impact - 50 to 70 unaccommodated flights on a
peak day based on current airline schedules.
•   Team developed menu of options – 
considering both Phasing of Base project
and Supporting projects
•   Engagement with SEA Stakeholders, Airlines
& FAA around a variety of competing
factors:
•   Offsetting impacted Aircraft Parking and
Holdroom Space
•   Customer Experience
•   Cost & Schedule
•   Regulatory Risks
•   Operational Efficiency
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               Menu of Alternatives
Concourse C
Re-Phase                                  Q-Gate
S Conc.                                        Conversions
Base                                                                                                          Cargo 2
Cargo 7                     Gate B16
Project
Cargo 6







Cargo 3
Gate S4B
Temp
AS Hangar
Holdroom                           Gate D6
Relocation

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      Projects Addressing Construction Impacts
•   Phasing approach will be 4+ phases – Maximum of 3 Widebody connected gates out of service
•   Improve existing Cargo 7 and provide Short-Term Holdroom serving 4 narrowbody aircraft
•   Improve existing Cargo 6 location to allow for Passenger Operations
•   Convert existing Gate D6 from a bussing gate back to a Passenger Loading Bridge
•   Convert existing parking area at Cargo 3 for GSE Storage
Cargo 7 & Short-Term Holdroom
Cargo 6
Cargo 3
GSE
Parking



Phasing                                 Gate D6
Approach                             Conversion


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              Base Building – Re-phrase
Assumptions
•   A phase shall not close more than 3 WB gates with limited incidental 4th gate closure.
•   Phases based on seismic hug structural solution.
•   Interior work will adjust to the chosen phasing program.
•   Overall phasing and interior work will take into consideration early work packages​.
•   Estimated 2 to 3 years of additional Construction Time.
Phasing Options





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            SCE Project Budget Increase
Project                       Budget

SCE Rephase                    $300,000,000     •    Maximum of 3 Widebody Contact Gates out
of service
SCE Facilitating Projects             $179,000,000      •     Cargo 7 and Holdroom
•     Cargo 6 Passenger Operations
•     Gate D6 PLB Conversion
•     Cargo 3 GSE Storage
Supporting Capital Purchases       $21,000,000      •    COBUS, Staff Shuttles, GSE, AviRamps
Total              $500,000,000      Project Budget Range $1.9B to $2.2B

   Commission Request
•  Request Commission Approval for the Executive Director to (1) Prepare
design and construction bid packages for S Concourse facilitating projects,
(2) Procure long-lead items, (3) Utilize Port crews for design support, (4)
execute an alternative delivery contract, and (5) Increase the project
authorization by $25,000,000 for a total project authorization to date of
$127,500,000.



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                     Questions?


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                      Thank you!


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