COMMISSION 
AGENDA MEMORANDUM                        Item No.          8c 
ACTION ITEM                            Date of Meeting      February 8, 2022 

DATE:     January 28, 2022 
TO:        Stephen P. Metruck, Executive Director 
FROM:    Laurel Dunphy, Director, Aviation Operations 
Wayne Grotheer, Director, Aviation Project Management 
SUBJECT:  Seating Replacement and Electrical Infrastructure Project (CIP #C800959) 
Amount of this request:               $8,550,000 
Total estimated project cost:         $10,300,000 
ACTION REQUESTED 
Request Commission authorization for the Executive Director to (1) advertise and execute a 
construction contract, (2) utilize Port crews; and (3) execute contracts for furniture purchases for
the Seating Replacement and Electrical Infrastructure Project at Seattle-Tacoma International
Airport. The total cost of this request is $8,550,000 of an estimated total project cost of
$10,300,000.
EXECUTIVE SUMMARY 
This project improves the passenger experience by replacing older seating with the Port's new 
seating that includes electrical charging, providing mobile device charging at 95% of the seating.
This project will purchase and install new gate holdroom seating and construct electrical
infrastructure for the integrated passenger device charging at fourteen gates at the airport's
Concourse A. The project will increase the number of designated Americans with Disabilities Act 
(ADA) seating for passengers with restricted mobility as SEA strives to be the most accessible
airport in the country.
JUSTIFICATION 
This project continues the  implementation of new seating that provides electrical power
throughout the Airport terminal while expanding accessible options. This includes additional ADA 
seating for passengers with restricted mobility in the holdrooms and at the security checkpoints. 


Template revised January 10, 2019.

COMMISSION AGENDA  Action Item No. 8c                                   Page 2 of 5 
Meeting Date: February 8, 2022 

The Port has previously completed projects that installed new gate holdroom seating and
electrical power at Concourses B and C, the Concourse D Annex, and the North Satellite. This
project continues the effort to upgrade customer waiting areas and consistency to the Airport
seating. 
The installation of new seating combined with electrical charging capabilities is a common
customer request and aligns with our Aviation Division goal of increasing Skytrax service attribute
scores for multiple areas to a higher standard.
Diversity in Contracting 
There will be a 6% women and minority business enterprise (WMBE) aspirational goal for the 
construction contract. 
DETAILS 
The project will purchase and install new seating: 
(1) Approximately 2,000 seats in Concourse A from Gate A1 through Gate A21 including an 
additional 156 ADA seats for passengers with restricted mobility. This will increase the 
total number of seats in Concourse A by over 400. ADA seats will increase from 4 seats
per holdroom to between 8  12 seats per holdroom. All seating units will be provided
with power for device charging. 
(2) A mix of tables and chairs throughout the Concourse A to support eating, relaxing or light
work on tablets and mobile devices. This seating is intended to encourage passengers to
utilize grab and go or delivery food options with the intent of increasing non-aeronautical
revenue. 
(3) Seventy (70) new checkpoint recomposure benches required to support five (5) passenger
security screening checkpoints in the Main Terminal. These units do not require power as
they are intended for transitional use only. 
(4) Eighty-eight (88) seating units in the South Satellite holdroom area between Gate S12 and
S15. This is intended to create a "Relaxation Area" in the South Satellite with a varied mix
of seating with increased comfort. These seating units will benefit most of our
international passengers utilizing the South Satellite. Due to electrical service limitations 
these seats will not be provided with power for charging devices. 
(5) Thirty (30) replacement lounge seats for the Port-owned Club at SEA for the South
Satellite that are at the end of their useful life.
Gate holdrooms will remain operational throughout the project. Construction and seating
removal and installation will occur at off-peak hours to minimize disruptions. 
This project originally included the replacement of seating in Concourse D holdroom. This scope
was removed due to the lack of electrical infrastructure and will become part of a future project
once the electrical infrastructure improvements are completed. 

Template revised June 27, 2019 (Diversity in Contracting).

COMMISSION AGENDA  Action Item No. 8c                                   Page 3 of 5 
Meeting Date: February 8, 2022 

Scope of Work 
A portion of this project will provide electrical infrastructure throughout Concourse A to support
providing power at the seating units to improve the passenger experience. This includes new
electrical panels, new conduit, new wiring, and new recessed floor receptacles. This accounts for
over half of the project costs. 
Schedule 
Activity 
Advertisement                            2022 Quarter 1 
Construction Start                            2022 Quarter 3 
Construction substantial completion         2023 Quarter 2 
Cost Breakdown                                     This Request           Total Project 
Design                                                           $0             $1,750,000 
Construction                                             $8,550,000             $8,550,000 
Total                                                         $8,550,000             $10,300,000 
ALTERNATIVES AND IMPLICATIONS CONSIDERED 
Alternative 1  Do not proceed with construction of this project. 
Cost Implications: Costs up to $1,750,000 authorized for design would need to be expensed. 
Pros: 
(1)   Reduces capital expenditure. 
Cons: 
(1)   Does not improve passenger experience. 
(2)   Does not continue implementation of the Port's new seating throughout the airport 
facility by providing new holdroom seating on Concourse A. 
(3)   Does not provide passengers with aesthetic variety, extra comfort, or color variation
in the supplemental seating. 
(4)   Does not increase number of ADA seats in Concourse A. 
(5)   Does not provide power to ADA seats in Concourse A. 
(6)   Does not provide additional Concourse A seating needed to support increased
passenger volumes. 
This is not the recommended alternative. 
Alternative 2  Proceed with construction of this project. 
Cost Implications: $10,300,000 

Template revised June 27, 2019 (Diversity in Contracting).

COMMISSION AGENDA  Action Item No. 8c                                   Page 4 of 5 
Meeting Date: February 8, 2022 

Pros: 
(1)   Improves passenger experience. 
(2)   Continues implementation of the Port's new seating throughout the airport facility by
providing new holdroom seating on Concourse A. 
(3)   Provides passengers with aesthetic variety, extra comfort, or color variation in the 
supplemental seating. 
(4)   Increases number of ADA seating in Concourse A. 
(5)   Provides power to ADA seating in Concourse A as suggested by 2018 Open Doors
Organization Accessibility Report. 
(6)   Provides 400 additional seats in A Concourse. 
Cons: 
(1)   More costly than Alternative 1. 
This is the recommended alternative. 
FINANCIAL IMPLICATIONS 
Cost Estimate/Authorization Summary              Capital        Expense           Total 
COST ESTIMATE 
Plan of Finance Estimate                        $14,347,000               $0      14,347,000 
Previous changes  net                         ($5,277,000)      $1,230,000    ($4,047,000) 
Current change                                 $1,155,000    ($1,155,000)              $0 
Revised estimate                               $10,225,000         $75,000     $10,300,000 
AUTHORIZATION 
Previous authorizations                          $1,250,000        $500,000      $1,750,000 
Current request for authorization                $8,975,000      ($425,000)      $8,550,000 
Total authorizations, including this request      $10,225,000         $75,000     $10,300,000 
Remaining amount to be authorized                    $0             $0             $0 
Annual Budget Status and Source of Funds 
This project, CIP C800959, was included in the 2022-2026 capital budget and plan of finance with
a budget of $9,070,000. A budget increase of $1,155,000 was transferred from the Aeronautical
Reserve CIP (C800753) resulting in zero net change to the Aviation capital budget. This capital
budget increase is due to the selection of seating that would last more than three years and thus
be eligible for capitalizing. The funding source will include the Airport Development Fund and
future revenue bonds. 


Template revised June 27, 2019 (Diversity in Contracting).

COMMISSION AGENDA  Action Item No. 8c                                   Page 5 of 5 
Meeting Date: February 8, 2022 


Financial Analysis and Summary 
Project cost for analysis              $10,300,000 
Business Unit (BU)                  Terminal Building 
Effect on business performance     NOI after depreciation will increase due to inclusion of
(NOI after depreciation)             capital (and operating) costs in airline rate base. 
IRR/NPV (if relevant)                N/A 
CPE Impact                       $.05 in 2023 
Future Revenues and Expenses (Total cost of ownership) 
The new seating will reduce our maintenance labor costs. The accent and lounge-style seating
tend to be less durable than row seating and will need to be repaired/replaced more frequently,
but no more frequently than existing accent seating. The overall cost of ownership for the accent
and lounge seating will be far less over the next 10 years. 
ATTACHMENTS TO THIS REQUEST 
(1)   Presentation slides 
PREVIOUS COMMISSION ACTIONS OR BRIEFINGS 
February 11, 2020  The Commission authorized design of this project along with purchase
of seating. 








Template revised June 27, 2019 (Diversity in Contracting).