COMMISSION 
AGENDA MEMORANDUM                        Item No.          6h 
ACTION ITEM                            Date of Meeting        June 9, 2020 
DATE:     May 29, 2020 
TO:        Stephen P. Metruck, Executive Director 
FROM:    Wendy Reiter, Director Aviation Security 
Wayne Grotheer, Director Aviation Project Management 
SUBJECT:  Construction  Authorization  for  Airport  Terminal  Accessibility  and  Safety
Enhancements Phase II (CIP #C800862) 
Amount of this request:       $ 3,784,000 
Total estimated project cost:   $19,900,000 
ACTION REQUESTED 
Request Commission authorization for the Executive Director to advertise and award a major
works construction contract for Phase II of the Airport Terminal Accessibility and Safety
Enhancements (TSE) project at Seattle-Tacoma International Airport (Airport). The amount of
this request is $3,784,000 for a total estimated project cost of $19,900,000. 
EXECUTIVE SUMMARY 
The TSE Phase II 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 American with Disabilities Act (ADA) access
improvements along the arrivals and departures curbsides. 
Construction bids were opened for this project, in August 2019, that were significantly higher
than the engineer's estimate. Due to the significant cost increase, and the widerange of costs 
between the bids, the bids were cancelled. The higher costs were attributed to three drivers: a
sole  vendor  providing  the  bollards,  mobilization  costs,  and  labor  risk  associated  with
operational constraints along with an aggressive construction schedule.  Staff has addressed
these issues by pursuing owner furnished equipment for the bollards and re-phasing the project
to minimize labor and logistics risks. 
The overall project increase was also subject to a majority-in-interest (MII) vote of signatory
airlines and was approved in May 2020.


Template revised January 10, 2019.

COMMISSION AGENDA  Action Item No. __6h__                              Page 2 of 5 
Meeting Date: June 9, 2020 
JUSTIFICATION 
The Phase II of the TSE program is necessary as it will provide an improved safe environment for
the airport passengers, vendors and staff.  These improvements also provide ADA compliant
access improvements as recommended by the Accessibility Study completed by the Open Doors
Organization (ODO). These improvements support the port's goalof making Seattle-Tacoma
International Airport the most accessible airport in the nation for people with disabilities. 
Diversity in Contracting 
Project staff worked with the Diversity in Contracting Department and have established eight
percent (8%) women- and minority-owned business enterprise (WMBE) aspirational goal for the
construction project. 
DETAILS 
On July 23, 2019, the project was advertised for construction bids with an engineer's estimate
in the amount of $8,568,103.  The Port cancelled the bids because all bids exceeded the
engineers estimate and the Port determined it was in our best interest to re-design the project
and delivery method.  Based upon the bids received the total estimated project cost was
$24,000,000. 
On January 28, 2020 the Commission authorized the procurement of the structural bollards as
owner procured materials in an attempt to increase competition resulting in a lower bollard
cost. A total of five proposals were received, ranging in cost from $1.5 to $2.9 million, and are
currently under evaluation. 

The original scope had included sidewalk resurfacing, but in recent months the Aviation Division
determined it would be prudent to remove that scope due to lack of support from airlines. In
addition, the overall project costs have increased by $400,000 due to the additional health and
safety requirements necessary to perform construction during the pandemic. 
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 to twelve on the arrival's curbside, and from three to twelve on the
departure's curbside.  Security improvements will also be installed in the Main Garage at the
entrance to each of the six sky bridges and along the third-floor courtesy vehicle plaza.  The
sidewalks will not be resurfaced. 
Schedule 
Activity 
Execute Purchase Contract - Bollards             2020 Quarter 2 

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

COMMISSION AGENDA  Action Item No. __6h__                              Page 3 of 5 
Meeting Date: June 9, 2020 
Advertise for Construction Bids                   2020 Quarter 2 
Start Construction / Issue Notice to Proceed      2020 Quarter 3 
Construction Complete / In-Use Date            2021 Quarter 3 
Cost Breakdown                                      This Request           Total Project 
Design                                                           $0             $2,857,104 
Construction                                             $3,784,000            $17,042,896 
Total                                                          $3,784,000             $19,900,000 
ALTERNATIVES AND IMPLICATIONS CONSIDERED 
Alternative 1  Do not proceed with Phase II of the TSE project 
Cost Implications: $1,035,000 for a total of $4,352,000 (includes Phase I) 
Pros: 
(1)   No capital investment by the Port 
Cons: 
(1)   Does not increase the safety and security of the occupants of the Main Terminal. 
(2)   Does not enhance ADA accessibility at the Main Terminal curbside. 
(3)   Does not enhance aesthetics of the Main Terminal curbside and courtesy vehicle
plaza. 
(4)   The procurement of the structural bollards would need to be cancelled and a total of
$1,035,000 would need to be expensed. 
This is not the recommended alternative. 
Alternative 2  Proceed with Phase II of the TSE project including sidewalk resurfacing. 
Cost Implications: $20,582,912 for a total of $23,900,000 (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)   The arrivals and departures curbsides, and courtesy vehicle plaza, will be resurfaced to
improve the aesthetics of the curb front that greets passengers as they arrive and
depart the Airport. 
Cons: 
(1)   Requires a capital investment of $20,582,912 by the Port. 

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

COMMISSION AGENDA  Action Item No. __6h__                              Page 4 of 5 
Meeting Date: June 9, 2020 
(2)   Sidewalk resurfacing scope is not supported by the airline tenants. 
This is not the recommended alternative. 
Alternative 3  Proceed with bollard installation and ADA access ramp improvements.  The
sidewalk resurfacing is not included. 
Cost Implications: $16,582,912 for a total of $19,900,000 (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. 
Cons: 
(1)   Requires capital investment of $16,582,912 by the Port. 
(2)   Does not take advantage of an opportunity to resurface the sidewalks as one
construction contract, reducing the total cost to the Port for both efforts, and
minimizing construction impacts on the traveling public, should sidewalk resurfacing
be desired at a later date 
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                          $5,469,546        $792,454      $6,262,000 
Current change                                $4,072,339      ($288,339)      $3,784,000 
Revised estimate                               $19,395,885        $504,115     $19,900,000 
AUTHORIZATION 
Previous authorizations                         $15,611,885        $504,115     $16,116,000 
Current request for authorization                $3,784,000               $0      $3,784,000 
Total authorizations, including this request      $19,395,885        $504,115     $19,900,000 
Remaining amount to be authorized                    $0             $0             $0 
Annual Budget Status and Source of Funds 
This project was included in the 2020  2024 capital budget and plan of finance with a budget
amount of $15,323,000. A budget increase of $4.1M was transferred from the Aeronautical
Reserve CIP (C800753) resulting in zero net change to the Aviation capital budget. The funding

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

COMMISSION AGENDA  Action Item No. __6h__                              Page 5 of 5 
Meeting Date: June 9, 2020 
source will be existing revenue bonds.  This project was initially approved by the signatory
airlines via the April 2019 MII vote, and again in May 2020 for the budget increase. 
Financial Analysis and Summary 
Project cost for analysis              $19,900,000 
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                        $.10 in 2022 
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 preventive maintenance is performed on the
security and access improvements. 
ATTACHMENTS TO THIS REQUEST 
(1) Presentation slides 
PREVIOUS COMMISSION ACTIONS OR BRIEFINGS 
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).