PORT OF SEATTLE 
MEMORANDUM 
COMMISSION AGENDA               Item No.      6b 
ACTION ITEM 
Date of Meeting    February 23, 2016 
DATE:    February 16, 2016 
TO:      Ted Fick, Chief Executive Officer 
FROM:   Michael Ehl, Director, Airport Operations 
Wayne Grotheer, Director, Aviation Project Management Group 
SUBJECT:  South Satellite Narrow-Body Configuration (SSAT NBC) Project Authorization 
(CIP# C800781) 
Amount of This Request:        $5,500,000   Source of Funds:   Airport Development
Fund 
Est. Total Project Cost:          $5,500,000 
Est. State and Local Taxes:        $354,000 
ACTION REQUESTED 
Request Commission authorization for the Chief Executive Officer to (1) approve the design and
construction of the South Satellite Narrow-Body Configuration Project in an amount not to
exceed $5,500,000 and (2) approve design and construction of the project scope to be completed 
via a contract executed for an existing project. The total estimated cost of this project is
$5,500,000. 
SYNOPSIS 
As briefed to the Commission at the February 9 meeting (Item No. 7b), this project will
reconfigure the physical geometry of the existing South Satellite aircraft parking area to yield
three additional narrow-body (single-aisle, Boeing 737-sized) aircraft parking positions within
the footprint of the existing ramp area. Two of the positions will be ground-loading positions and
one will have a new passenger loading bridge connected to the building. These additional
narrow-body aircraft parking positions will be available for off-peak evening arrivals, overnight
parking, and early morning departures, all complementing the mid-day wide-body peak-hour
demand. Adding these three positions will reduce the number of narrow-body flights that would
otherwise go to hardstands when existing gates are full. Each of these gates will include
sustainable aircraft utilities to provide aircraft electrical power (400 Hz) and conditioned air (PC
Air) and improved passenger access to the terminal building where necessary. 
This request also authorizes the design and construction of the project by the design/build
contractor procured for the International Arrivals Facility (IAF) project based on the following
rationale: 

Template revised May 30, 2013.

COMMISSION AGENDA 
Ted Fick, Chief Executive Officer 
February 16, 2016 
Page 2 of 8 
1.  The narrow-body layout on the exterior cannot be designed until the wide-body layout 
required to accommodate the IAF bridge is finalized. 
2.  The IAF design/build team is facilitating the overall design and construction for related
project work in the same footprint as this project. 
Timing of this project is urgent in order to limit the number of gate outages involved. Using
separate design and construction contracts to perform the work would mean delaying the project
until 2019, when the IAF Design Build Project team will have completed their work at the South
Satellite. Further, the recommended method for design and construction will not increase the
budget of the IAF project. 
BACKGROUND 
With the rapid growth in enplanements and operations expected to continue, and with the
upcoming construction activities that will take existing gates out of service during construction
for several years, the Airport will experience a severe shortage of contact gates, i.e., gates with a
passenger loading bridge connection between the aircraft and terminal building. 
The Sustainable Airport Master Plan (SAMP) calculations forecast the need for 11-13 hardstand
parking positions (narrow-body equivalents) by 2020. During SAMP's review of SSAT gating,
an opportunity was identified to provide additional narrow-body parking positions in advance of
the construction of new SAMP facilities. The SSAT NBC Project was conceived to seize that
opportunity and reduce the need for hardstand operations. This project is supported by the
airlines and was approved via a Majority in Interest Vote in January. 
PROJECT JUSTIFICATION AND DETAILS 
The Aviation Division Business Plan calls for "increased productivity of existing terminal
facilities" (Strategy 1.2, Objective 6). The need for increased productivity is driven by the
following: 
1.  Recent and forecasted significant growth in enplanements and operations; 
2.  Construction activities that will take several existing gates out of service during the
International Arrivals Facility and North Satellite renovation and expansion projects. 
The Airport will face a severe shortage of contact gates for at least the next decade. 
The SSAT NBC Project was conceived to address the Airport's near-term need for narrow-body
parking positions and operational flexibility. The project will create three additional narrow-body
parking positions at the South Satellite. These additional narrow-body positions will reduce the
need for hardstand operations as soon as they are in place. Therefore, accelerated execution of
this work is critical. Using the IAF Design Build Project team to execute the project design and
construction provides the opportunity to complete the project concurrently with the revised widebody
layout. The IAF has been contracted using the progressive design-build delivery method
whereby the designer and the construction contractor are contracted as one team and the IAF's

COMMISSION AGENDA 
Ted Fick, Chief Executive Officer 
February 16, 2016 
Page 3 of 8 
Design-Build team is already in place. Additionally, the IAF scope includes work for wide-body
aircraft that is similar to this project including wide-body gating, fuel system modification,
passenger loading bridge purchase and installation, and apron marking in the same location. 
While the need for the additional narrow-body positions is not connected to the justification for
the IAF, the design is heavily dependent on overall layout of aircraft parking (i.e., narrow- and
wide-body) at the South Satellite, which is being redesigned by the IAF in order to accommodate
the bridge connector between the South Satellite and the IAF. 
Project Objectives 
The SSAT NBC capitalizes on an opportunity to provide the following benefits by early 2018: 
Provide operational flexibility and maximize use of the South Satellite during off-peak
wide-body periods during the day 
Reduce frequency of hardstand use 
Scope of Work 
The SSAT NBC Project scope elements include: 
One additional passenger loading bridge with standard amenities (preconditioned (PC)
air, potable water, 400hz electrical power) at what is currently Gate S9; 
One new fuel pit at Gate S6 for the narrow-body parking position 
New portable PC air and 400Hz units for dedicated ground loading use at Gates S1a and
S10b. The new PC air and 400Hz units will be purchased by the project and all necessary
infrastructure needed to support these units will be designed and constructed; 
Building modification and new stairway with an integrated wheelchair lift at Gate S10b; 
Ramp markings associated with the narrow-body configuration. 
Schedule 
MII ballot                                          January 2016 
NTP issued to IAF contractor to execute SSAT NBC exterior work   February 2016 
Design start                                         1Q2016 
Construction start                                     1Q2017 
Construction complete                               3Q2017

COMMISSION AGENDA 
Ted Fick, Chief Executive Officer 
February 16, 2016 
Page 4 of 8 
FINANCIAL IMPLICATIONS 
Budget/Authorization Summary              Capital     Expense   Total Project 
Original Budget                      $5,500,000          $0    $5,500,000 
Previous Authorizations                       $0          $0          $0 
Current request for authorization            $5,500,000          $0    $5,500,000 
Total Authorizations, including this request     $5,500,000          $0    $5,500,000 
Remaining budget to be authorized               $0          $0          $0 
Total Estimated Project Cost              $5,500,000          $0    $5,500,000 
Project Cost Breakdown                     This Request       Total Project 
Design & Construction*                      $4,426,000         $4,426,000 
Port Project & Construction Management**          $ 700,000         $ 700,000 
Permitting                                   $20,000           $20,000 
State & Local Taxes (estimated)                   $354,000          $354,000 
Total                                      $5,500,000         $5,500,000 
* Design and construction activities to be completed by the IAF Design/Build team. 
**The integrated Port of Seattle IAF team will provide project management and construction
management services. 
Budget Status and Source of Funds 
This project was included in the 2016-2020 capital budget and plan of finance as a business plan
prospective project. The funding source will be the Airport Development Fund (ADF). 
Financial Analysis and Summary 
CIP Category             Renewal/Enhancement 
Project Type              Renewal and Replacement 
Risk adjusted discount rate     N/A 
Key risk factors             N/A 
Project cost for analysis        $5,500,000 
Business Unit (BU)          Passenger Loading Bridge, Apron 
Effect on business performance  NOI after depreciation will increase 
IRR/NPV             N/A 
CPE Impact             $0.02 in 2018 
Lifecycle Cost and Savings 
Aviation Maintenance completes regular preventive, corrective, and emergency maintenance on
all Port-owned passenger loading bridges (PLBs), and provides customer service support for
operations. Aviation Maintenance estimates a current annual maintenance cost per PLB of
approximately $2,500 inclusive of all repair, maintenance, and customer support activities,
including 24/7 response.

COMMISSION AGENDA 
Ted Fick, Chief Executive Officer 
February 16, 2016 
Page 5 of 8 
Aviation Maintenance also performs regular preventative, corrective,  and emergency
maintenance for PCAir, potable water, portable PCAir units, and 400Hz units. On average,
Aviation Maintenance has performed maintenance on the 400Hz and potable water units
approximately twice per year at an average cost of $500 per repair. Annual maintenance cost is 
estimated at approximately $5,000 per year for each portable PCAir unit. 
Aviation Maintenance has new portable 400Hz units currently serving hardstand operations.
These are still under warranty and have not generated any maintenance records as of yet. Each
portable 400Hz unit requires installation of a dedicated electrical connection. 
The life expectancy of the stairs and lift at Gate S10b is estimated to be 15 years. We do not
anticipate significant ongoing maintenance costs. However, we do anticipate performing
refurbishment of the floors, ceiling material, and siding material approximately every 3 to 5
years depending on usage and weather. It is estimated that the cost of these refurbishments will
range from $5,000-$7,000 per event. 
The fuel pit will be leased to and maintained by SEATAC Fuels, LLC, an airline consortium. 
STRATEGIES AND OBJECTIVES 
This project supports the Port's Century Agenda objectives of making Seattle-Tacoma
International Airport the West Coast 'Gateway of Choice' for international and domestic travel
and of meeting the region's air transportation needs at the Airport for the next 25 years by
providing critically needed close-in or PLB-connected aircraft parking locations that reduce the
number of hardstand operations needed due to increased passenger aircraft operations. 
Adding new close-in parking positions provides the Port the opportunity to supply sustainable
features at new aircraft parking positions such as PC Air and 400 Hz electrical power. This is
preferred compared to remote locations where aircraft must leave engines running to have power
and air conditioning. 
In the course of delivering the project, the IAF team and the  Port's Office of Social
Responsibility will work together collaboratively to establish small business participation
opportunities, in accordance with small business Resolution No. 3618. 
This project represents an investment in our current facilities and supports the long-term vitality
of the Airport, airlines, and other airport tenants. This project also provides an opportunity to
help meet the region's air transportation needs at Seattle-Tacoma International Airport for the
next 25 years and encourage the cost-effective expansion of passenger traffic. 
ALTERNATIVES AND IMPLICATIONS CONSIDERED 
Alternative 1)  Maintain the status quo 
This option does not provide additional capacity for narrow body aircraft to load and unload
passengers in existing facilities. More aircraft would have to use remote parking positions.

COMMISSION AGENDA 
Ted Fick, Chief Executive Officer 
February 16, 2016 
Page 6 of 8 
Cost: $2,400,000 capital cost for airfield ramp buses and $620,000 per year in Port operating
costs for busing. This assumes six full narrow-body turns per day (2 per gate) that we could
avoid if we add these close-in parking positions. No capital investment at the SSAT. 
Pros: 
This alternative does not require a capital investment at the South Satellite. 
Cons: 
This alternative would require a greater number of aircraft to load and unload at
remote parking positions, which requires additional staff and equipment and
provides a lower than desired passenger experience. 
This alternative would require the purchase of more airfield ramp buses and
funding of more staff to facilitate hardstand operations. 
This is not the recommended alternative. 
Alternative 2)  Add aircraft parking spaces without adding fuel pits, loading bridges, or
gate utilities to service aircraft at these locations. 
Capital Cost: No capital investment at the SSAT. The cost of applying markings for three 
additional narrow-body parking spaces would be approximately $165,000. 
Pros: 
This alternative would only require a modest investment while still providing
additional capacity at the SSAT. 
Cons: 
This alternative would not provide the best customer experience; since not all
spaces would be passenger loading bridge connected or have dedicated passenger
pathways for access. 
The passenger routes for this alternative are not ideal and require operational
work-arounds such as closing a bagwell entrance and escorting passengers down
uncovered stairs. 
This alternative would require additional staffing to ensure passenger control is
maintained per the Airport Security Plan. 
This alternative would require the aircraft to run their engines or auxiliary power
units (APUs) to provide air conditioning and to power critical systems while on
the ground which results in more carbon emissions compared to providing these
amenities via PC Air and 400 Hz ground units. 
This is not the recommended alternative.

COMMISSION AGENDA 
Ted Fick, Chief Executive Officer 
February 16, 2016 
Page 7 of 8 
Alternative 3)  Add one additional Passenger Loading Bridge (PLB) including gate
utilities at the identified positions to service additional narrow-body aircraft at the SSAT as
a stand-alone project to be completed utilizing new design and construction contracts and
not the IAF Design Build team. 
Capital Cost: $6,300,000 
Pros: 
This alternative provides three additional parking and boarding locations for
narrow-body aircraft during late night and morning activities at the SSAT
reducing the need for busing/towing during these times. 
This alternative provides full utilities for aircraft reducing the demand for more
service vehicles and controlling congestion in the busy ramp area as well as
reducing carbon emissions by enabling aircraft engines to be turned off at the gate
during ground time. 
Cons: 
This alternative could not be designed until the SSAT wide-body layout design is
finalized for the placement of the IAF bridge. 
This alternative could not be constructed until the IAF Design/Build contractor
vacates the area due to inability to take more than two gates out of service at a
time. This would delay these additional narrow-body aircraft parking positions
until 2019. Between now and then we would need additional remote parking
position operations to accommodate increased flights that could have been parked
at the SSAT. 
The construction of this alternative would require gate shutdowns after the SSAT
work related to the IAF is complete. 
This alternative has a higher estimated cost because of the two-year delay in
design and construction 
This alternative does not provide additional narrow-body parking positions when
the demand for wide-body positions is at its peak. 
This is not the recommended alternative.

COMMISSION AGENDA 
Ted Fick, Chief Executive Officer 
February 16, 2016 
Page 8 of 8 
Alternative 4)  Add one additional Passenger Loading Bridge (PLB) including gate
utilities at the identified positions to service additional narrow-body aircraft at the SSAT as
a stand-alone project to be completed via the IAF Design Build Project team. 
Capital Cost: $5,500,000 
Pros: 
This alternative provides three additional parking and boarding locations for
narrow-body aircraft during late night and morning activities at the SSAT
reducing the need for busing/towing during these times. 
This alternative minimizes operational disruption by designing and constructing
the scope at the same time as similar planned work at the satellite. 
This alternative provides full utilities for aircraft reducing the demand for more
service vehicles and controlling congestion in the busy ramp area as well as
reducing carbon emissions by enabling aircraft engines and APUs to be turned off
at the gate during ground time. 
This alternative could be designed concurrently with the SSAT wide-body layout
design to ensure that the two do not conflict. 
This alternative could be constructed by the IAF Design/Build contractor, which
would provide efficiencies in construction including fewer shutdowns  and
contractor mobilizations. 
This is the only way, due to gate outage restrictions, to gain these positions in
advance of the completion of the SSAT work for the IAF. 
Cons: 
This alternative does not provide additional narrow-body parking positions when
the demand for wide-body positions is at its peak. 
This is the recommended alternative. 

ATTACHMENTS TO THIS REQUEST 
Layout illustrating three new narrow-body parking positions at the SSAT. 
PREVIOUS COMMISSION ACTIONS OR BRIEFINGS 
February 9, 2016  South Satellite Narrow-Body Configuration Briefing