Rvm604 
COMMISSION 
AGENDA MEMORANDUM                        Item No.          8e 
ACTION ITEM                            Date of Meeting     December 14, 2021 

DATE:     November 19, 2021 
TO:        Stephen P. Metruck, Executive Director 
FROM:    Wendy Reiter, Director Aviation Security 
Wayne Grotheer, Director Aviation Project Management 
SUBJECT:  Additional  Construction  Authorization  for  Terminal  Security  Enhancements 
(CIP #C800862) 
Amount of this request:               $1,729,000 
Total estimated project cost:         $22,950,000 
ACTION REQUESTED 
Request Commission authorization for the Executive Director to 1) complete the final design, 2) 
award a design-build contract, and 3) authorize an additional $1,729,000 for Phase II of the
Terminal Security Enhancements project at Seattle-Tacoma International Airport (Airport). The
total estimated project cost is $22,950,000. 
EXECUTIVE SUMMARY 
Phase II of the Terminal Security Enhancements (TSE) project is intended to improve passenger
safety with the installation of structural bollards along the airport's arrivals and departures
curbsides, the courtesy vehicle plaza, and the pedestrian sky bridge entrances in the main garage.
The installation of these bollards has been identified as a key component of the overall
comprehensive security program at the airport. The project will also complete the Americans
with Disabilities Act (ADA) access improvements along the arrivals and departures curbsides. 
This project was authorized to be delivered through a traditional design-build contract and the
selection process concluded in October 2021. All the design-build team's proposals were higher
than the Port engineer's estimate and ranged between $13.8 to $16.5 million. The successful
design-build  team's bid was $13,807,637 which requires the additional authorization of
$1,729,000 to execute and complete the design-build contract. The higher project costs are
attributed to escalating construction material costs, current market conditions and risks. 
This project was initially approved by a majority-in-interest (MII) vote of the signatory airlines per
the Signatory Lease and Operating Agreement (SLOA). The project increase of $1,729,000 will not
require an additional MII vote since the increase is less than the 10% allowed per the SLOA. 

Template revised January 10, 2019.

COMMISSION AGENDA  Action Item No. __8e__                              Page 2 of 5 
Meeting Date: December 14, 2021 
JUSTIFICATION 
Phase II of the TSE program is necessary as it will provide security improvements, accessibility
improvements as recommended by the Accessibility Study completed by the Open Doors
Organization (ODO), and corrective actions per an agreement with the FAA. These improvements
support the Port's goal of making SEA the most accessible airport in the nation for people with
disabilities and provide a safe environment for SEA's passengers, staff, and visitors. 
Diversity in Contracting 
There will be an eight percent (8%) Women-and Minority-Owned Business Enterprise (WMBE)
aspirational goal for the project. 
DETAILS 
This project was authorized to be delivered through a traditional design-build contract in
December 2020. The request for qualifications was advertised in March 2021 and four (4) teams
submitted statements of qualifications, with only three (3) teams being selected to submit
proposals. The three (3) remaining teams submitted initial proposals in June 2021. The review of
the proposals identified that all bids were significantly higher than the engineer's estimate. The
Port then requested a best and final offer proposal in an effort to reduce project costs and to
improve the overall value to the project. The final proposals were submitted in late September
with the selection process concluding in October. While the proposal costs were reduced, all of
the design-build team's proposals were still higher than the Port engineer's estimate and ranged
between $13.8 to $16.5 million. The successful design-build team's bid was $13,807,637 which
requires the additional authorization of $1,729,000 for the Port to be able to execute and
complete the design-build contract.
Additionally, the Federal Aviation Administration (FAA) received a complaint regarding the lack
of accessibility improvements on the curbside and has requested that the airport remedy the
situation. FAA has been notified of the delayed project schedule. 
Scope of Work 
The project will install security and ADA access improvements at the entrances to the main
terminal from the arrivals and departures curbsides. The number of accessible loading zones will
increase from two (2) to twelve (12) on the arrival's curbside, and from three (3) to twelve (12) 
on the departure's curbside. Security improvements will also be installed in the Main Garage at
the entrance to each of the six (6) pedestrian sky bridges and along the third-floor courtesy
vehicle plaza. 



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

COMMISSION AGENDA  Action Item No. __8e__                              Page 3 of 5 
Meeting Date: December 14, 2021 

Schedule 
Activity 
Execute Contract                               2021 Quarter 4 
Design Validation                                2022 Quarter 1 
In-use date                                       2023 Quarter 2 
Cost Breakdown                                     This Request           Total Project 
Design                                                           $0             $3,397,104 
Construction                                             $1,729,000            $16,552,896 
Total                                                         $1,729,000             $22,950,000 
ALTERNATIVES AND IMPLICATIONS CONSIDERED 
Alternative 1  Do not proceed with Phase II of the TSE project. 
Cost Implications: $2,413,000 for a total cost of $5,730,000 (includes Phase I). 
Pros: 
(1)   No further capital investment by the Port. 
Cons: 
(1)   Does not increase the safety and security of the occupants of the Main Terminal. 
(2)   Does not fulfill obligation to FAA to enhance ADA accessibility at the Main Terminal
curbside. 
(3)   A total of $2,413,000 would need to be expensed. 
This is not the recommended alternative. 
Alternative 2  Proceed with bollard installation and ADA access ramp improvements using
traditional design-build approach. 
Cost Implications: $19,633,000 for a total of $22,950,000 (Includes Phase I) 
Pros: 
(1)   The safety and security of the occupants of the Main Terminal will be increased. 
(2)   The  Arrivals  and  Departures  curbsides  will  become  compliant  with  current  ADA 
standards and helps expedite achieving the Port goal of making the Airport the most 
accessible airport for people with disabilities in the nation. 
(3)   Shorter implementation schedule than design-bid-build approach. 
(4)   Budget increase does not require additional MII approval and is within the allowable
10% variance per SLOA agreement. 
Cons: 
(1)   Requires capital investment of nearly $23 million by the Port. 

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

COMMISSION AGENDA  Action Item No. __8e__                              Page 4 of 5 
Meeting Date: December 14, 2021 
This is the recommended alternative. 
FINANCIAL IMPLICATIONS 
Cost Estimate/Authorization Summary              Capital        Expense           Total 
COST ESTIMATE 
Original estimate                                 $9,854,000               $0      $9,854,000 
Previous changes  net                          $9,658,523      $1,708,477     $11,367,000 
Current change                                 $1,729,000              $0      $1,729,000 
Revised estimate                              $21,241,523      $1,708,477    $22,950,000 
AUTHORIZATION 
Previous authorizations                         $19,512,523      $1,708,477     $21,221,000 
Current request for authorization                $1,729,000               $0      $1,729,000 
Total authorizations, including this request      $21,241,523      $1,708,477     $22,950,000 
Remaining amount to be authorized                    $0             $0             $0 
Annual Budget Status and Source of Funds 
This project was included in the 2022  2026 capital budget and Plan of Finance with a budget 
amount of $20,895,885. A budget increase of $345,638 was transferred from the Aeronautical
Reserve CIP (C800753) resulting in zero net change to the Aviation capital budget. The funding
sources include the Airport Development Fund (ADF) and revenue bonds. 
This project was approved by the signatory airlines in December 2017, April 2019 MII vote, and 
May 2020 with a total approval of f $19,500,000. The increase in capital budget does not require
additional approval from the signatory airlines since it is within 10% of the approved amount. 
Financial Analysis and Summary 
Project cost for analysis              $22,950,000 
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                       $0.11 in 2023 
Future Revenues and Expenses (Total cost of ownership) 
Port staff does not anticipate a significant change in the on-going operation and maintenance
costs associated with these efforts since minimal preventative maintenance is performed on the
security and access improvements. 

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

COMMISSION AGENDA  Action Item No. __8e__                              Page 5 of 5 
Meeting Date: December 14, 2021 
The project will install new roadway directional signage that will replace existing signage attached
to the pedestrian sky bridges. Currently, the airport receives revenue from advertising signage
that is placed on the exterior of the pedestrian sky bridges. The new roadway directional signage
will be slightly taller than the existing signage and may impact the revenue potential from the
advertising signage. 
ATTACHMENTS TO THIS REQUEST 
(1)   Presentation 
PREVIOUS COMMISSION ACTIONS OR BRIEFINGS 
December 15, 2020  The Commission authorized utilization of the traditional design-build
contracting methodology, the advertisement and award of a design-build contract, and
to complete final design and construct Phase II of the Terminal Security Enhancements
project.
June 9, 2020 - The Commission authorized the advertisement and execution of a major works
construction contract for Phase II of the Airport Terminal Accessibility and Safety
Enhancements project. 
January 28, 2020  The Commission authorized the purchase of structural bollards for Phase
II of the Airport Terminal Accessibility and Safety Enhancements project. 
May 3, 2019  The Commission authorized the advertisement and execution of a major works
construction contract for Phase II of the Airport Terminal Accessibility and Safety
Enhancements project. 
January 30, 2018  The Commission authorized the design and preparation of contract bid
documents for Phase II of the Airport Terminal Safety and Security Enhancements project. 
October 24, 2017  The Commission authorized the design, preparation of contract bid
documents, advertisement, and execution of a major works construction contract for
Phase I of the Airport Terminal Safety and Security Enhancements project. 







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