COMMISSION 
AGENDA MEMORANDUM                        Item No.          6f 
ACTION ITEM                            Date of Meeting     February 11, 2020 
DATE:     February 3, 2020 
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:               $1,700,000 
Total estimated project cost:         $10,300,000 
ACTION REQUESTED 
Request Commission authorization for the Executive Director to (1) prepare design and bid
documents and (2) purchase a portion of time-sensitive seating now for  the Seating
Replacement and Electrical Infrastructure project at Seattle-Tacoma International Airport in an
amount not to exceed $1,700,000 out of a total estimated project cost of $10,300,000. 
EXECUTIVE SUMMARY 
The purpose of this project is to improve passenger experience by continuing to replace older
existing seating with the Port's current standard seating that includes electricalcharging. This
project will purchase and install new gate holdroom seating for Concourse A and construct
electrical infrastructure so that passengers can charge their electronic devices from their seats.
This project will also install bench seating for passenger recomposure at security checkpoints
and lounge seating at two locations: the South Satellite Club at SEA and an area in the South
Satellite west end concourse level. 
This request, should it be authorized, would allow the project to start design. It would also
allow immediate purchase of some seating in need of replacement due to its condition. To
meet this need, the project would purchase approximately 400 seats now. The remainder of
the seating, approximately 2600 seats, would be purchased later as a part of this project's next
authorization request scheduled for Q1 2021. 
The Port has previously completed projects that installed new gate holdroom seating and
electrical power at Concourses B and C, the North Satellite, and the Concourse D Annex, in
accordance with the Airport seating standard. This project continues implementation of new
seating and electrical power throughout the Airport terminal. 

Template revised January 10, 2019.

COMMISSION AGENDA  Action Item No. _6f___                               Page 2 of 6 
Meeting Date: February 11, 2020 
The Airport's gate seating standard is primarily row seating and a small amount of accent 
seating that provides more color options, aesthetic variety, and/or extra comfort. Older existing
seats will be relocated to airport areas in need of seating or will be removed through the Port
Asset Disposition process. 
JUSTIFICATION 
In a Gate Comfort Study, travelers expressed many factors that contribute to their comfort
while waiting at gates. The biggest need for improvement identified in the study was for the
provision of electrical power at seating, as well as availability of comfortable seating in the
boarding area. The installation of new seating  when combined with electrical charging
capability  satisfies this need. This  project will  replace existing  older seating and offer a
consistent airport experience regardless of location. The project will provide seating that meets
the needs of people with reduced mobility. 
Diversity in Contracting 
This project plans to use an existing architect design services IDIQ contract which includes small
business  requirements. For  construction,  project  staff  will  work  with  the  Diversity  in
Contracting Department to identify a  woman and minority business enterprise (WMBE)
aspirational goals. 
DETAILS 
Gate holdrooms will remain operational throughout the project. Construction and seating
removal and installation will occur off-hours to minimize disruptions. 
The South Satellite concourse level includes a specific seating area (Relaxation Area) at the west
end for which this project will replace seating, but not include electrical charging capability. The
replacement of these seats is required due to the condition of the existing seating. The project
scope does not include replacement of seating on Concourse D or South Satellite gate
holdrooms. Work in those areas will be completed by future projects after new electrical
infrastructure is constructed to provide the necessary electrical capacity. 
Scope of Work 
This project will purchase and install new seating and construct electrical infrastructure as
described below: 
(1)   Electrical infrastructure, including new electrical panels, new conduit and wiring, and
recessed floor receptacles (approximately 20 per holdroom),  on Concourse A to
provide charging capability for passengers 
(2)   Seating on Concourse A gate holdrooms with electrical charging 
(3)   Seating at The Club at SEA lounge at the South Satellite with electrical charging for
some seats re-using existing electrical circuits 

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

COMMISSION AGENDA  Action Item No. _6f___                               Page 3 of 6 
Meeting Date: February 11, 2020 
(4)   Seating at the Relaxation Area at the west end of the South Satellite with no electrical
charging 
(5)   Seating  at  passenger  security  checkpoint  recomposure  areas  (without  charging
capability as these locations are intended for transitional use only) 
Seating Location                  Type of Seating               Electrical Charging at
Seats? 
Concourse A Gate          Primarily row seating and a small    Row seating  Yes
Holdrooms                amount of accent seating           Accent seating  if possible 
Club at SEA 
Lounge-style seating                  At some seats, utilizing
at South Satellite 
existing wall outlets 
Relaxation Area              Lounge-style seating                  No 
at South Satellite West End 
Security Checkpoints         Bench seating                        No 

Schedule 
Activity 
Design start                                       2020 Quarter 2 
Commission construction authorization          2021 Quarter 1 
Construction start                                2021 Quarter 3 
In-use date                                       2022 Quarter 2 
Cost Breakdown                                      This Request           Total Project 
Design                                                  $1,700,000             $1,700,000 
Construction                                                     $0             $8,600,000 
Total                                                          $1,700,000             $10,300,000 
ALTERNATIVES AND IMPLICATIONS CONSIDERED 
Alternative 1  Provide only row seating with electrical charging and no accent seating in the
Concourse A gate holdrooms. Provide lounge-style seating for the Club at SEA on South Satellite
and at the relaxation area at the west end of South Satellite. Provide bench seating at security
checkpoints. 
Cost Implications: $10,000,000 
Pros: 
(1)   Row seating is more durable than the accent seating. 
(2)   Row  seating  typically  provides  more  seats  in  a  given  space  than  accent  seating 
(greater seating density). 

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

COMMISSION AGENDA  Action Item No. _6f___                               Page 4 of 6 
Meeting Date: February 11, 2020 

Cons: 
(1)   Passengers will not have the opportunity to enjoy aesthetic variety, extra comfort, or
color variation in the accent seating. 
This is not the recommended alternative. 
Alternative 2  Provide row seating with electrical charging and accent seating in the Concourse
A gate hold rooms. Provide row seating without electrical charging and accent seating in the
Concourse D gate holdrooms due to the lack of available electrical power. Provide lounge-style
seating for the Club at SEA on South Satellite and at the relaxation area at the west end of
South Satellite. Provide bench seating at security checkpoints. 
Cost Implications: $14,000,000 
Pros: 
(1)   Continues implementation of a portion of the Port's new standard seating throughout
the airport facility by providing new holdroom seating on Concourses A and D. 
Cons: 
(1)   Does not meet the Port's seating standard or passenger expectations that new seating
provides charging capability. This could even diminish the passenger experience by
having  non-functional  charging  capability  until  electrical  infrastructure  can  be
upgraded. 
This is not the recommended alternative. 
Alternative 3  Provide row seating with electrical charging and accent seating in the Concourse
A gate hold rooms. Provide lounge-style seating for the Club at SEA on South Satellite and at the
relaxation  area  at  the  west  end  of  South  Satellite.  Provide  bench  seating  at  security
checkpoints. 
Cost Implications: $10,300,000 
Pros: 
(1)   Improves passenger experience 
(2)   Continues implementation of the Port's new seating standard 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. 
Cons: 
(1)   Does not include seating on Concourse D. A future seating project would need to
provide seating on Concourse D after the electrical infrastructure is upgraded on that
concourse. 
(2)   Includes accent seating that is aesthetically pleasing, however, is less durable than the
row seating and may need to be replaced more often. 

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

COMMISSION AGENDA  Action Item No. _6f___                               Page 5 of 6 
Meeting Date: February 11, 2020 
(3)    Includes accent seating that will fit fewer seats in a given space than row seating
(lower seating density). 
This is the recommended alternative. 
FINANCIAL IMPLICATIONS 
Expense costs are for procurement of seating at lounge, relaxation area, security checkpoints,
and gate alternate seating. Those seats (fabric upholstery or less durable materials) are assets
that are not expected to last more than three years due to the high level of use and therefore
cannot be capitalized, so the costs are treated as expenses.
Cost Estimate/Authorization Summary               Capital        Expense           Total 
COST ESTIMATE 
Original estimate                                $14,347,000               $0     $14,347,000 
Scope and cost revisions                        ($5,277,000)      $1,230,000    ($4,047,000) 
Revised estimate                                $9,070,000      $1,230,000     $10,300,000 
AUTHORIZATION 
Previous authorizations                             $50,000               $0         $50,000 
Current request for authorization                $1,200,000        $500,000      $1,700,000 
Total authorizations, including this request       $1,250,000        $500,000      $1,750,000 
Remaining amount to be authorized            $7,820,000       $730,000     $8,550,000 
Annual Budget Status and Source of Funds 
This project, CIP C800722, was included in the 2020-2024 capital budget and plan of finance
with a budget of $14,347,000. The  capital budget decreased due to the following: (1) a
reduction in scope removing the work from Concourse D; and (2) some of the seating is
anticipated to be expense rather than capital. The expense furniture is not in the 2020 budget
because it was not known at that time, and it might not be needed, but if it is, the Aviation
Division will strive to absorb it. The reduced capital cost was transferred to the Aeronautical
Reserve CIP (C800753) resulting in zero net change to the Aviation capital budget. The funding
source will be revenue bonds.
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                        $0.06 in 2022, and $0.02 in following years. 

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

COMMISSION AGENDA  Action Item No. _6f___                               Page 6 of 6 
Meeting Date: February 11, 2020 
Future Revenues and Expenses (Total cost of ownership) 
Maintenance of the new row seating will be less expensive than old row seating, because
damaged components can be removed easily with just a few fasteners. The accent and loungestyle
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. 

ATTACHMENTS TO THIS REQUEST 
(1)   Presentation slides 
PREVIOUS COMMISSION ACTIONS OR BRIEFINGS 
April 11, 2017  The Commission authorized new seating on Concourses B and C for 
$9,300,000. 













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