PORT OF SEATTLE 
MEMORANDUM 
COMMISSION AGENDA               Item No.      4c 
ACTION ITEM 
Date of Meeting    December 9, 2014 
DATE:    December 1, 2014 
TO:      Ted Fick, Chief Executive Officer 
FROM:   David Soike, Director, Aviation Facilities and Capital Programs 
Wayne Grotheer, Director, Aviation Project Management Group 
SUBJECT:  Design for Gate Improvements Loading Bridges Utilities, B Concourse 400Hz
(CIP #C800019) 
Amount of This Request:             $0   Source of Funds:  Airport Development
Fund and Future
Est. Total Project Cost:         $15,648,312 
Revenue Bonds 
Est. State and Local Taxes:        $567,000
ACTION REQUESTED 
Request Commission authorization for the Chief Executive Officer to complete the design for the
Concourse B portion of the Gate Improvements Loading Bridges Utilities 400Hz project at
Seattle-Tacoma International Airport. 
SYNOPSIS 
This project will complete the Gate Improvements Loading Bridges Project by completing the
400Hz ground power system on the B Concourse. Concourse B includes the remaining aircraft
gates that require 400Hz electrical connections. Upon completion, the aircraft that use these
gates will be able to plug-in to the terminal rather than burn fossil fuel to power the aircraft
auxiliary jet engine that in turn powers the flight deck controls. 
Staff notified the Commission in December 2012 that design and construction on Concourse B
was delayed to focus on plug-in gate power for the South Satellite because ANA Airline's first
new 787 aircraft was to begin service between Seattle and Tokyo. The 787 is the most electrified
aircraft in the fleet and has unique plug-in power requirements. In addition, consideration was
given to the possibility that the 787 might also come into greater use and possibly be used in the
future on Concourse B, therefore for procurement reasons related to 400HZ equipment, it was
decided to delay the work on Concourse B until staff knew what equipment might be needed.
Now that the electrical power requirements for the aircraft has been determined, staff is
requesting to restart design process. The total amount expected to be expended on design is
approximately $850,000 and that value is within budget, however follow on construction is
expected to require additional budget. Following design, staff will return to the Commission in

Template revised May 30, 2013.

COMMISSION AGENDA 
Ted Fick, Chief Executive Officer 
December 1, 2014 
Page 2 of 5 
the third quarter of 2015 with a cost estimate for construction and associated authorization
request. The previous design effort for Concourse B 400Hz has been valued at $218,000 and will
be expensed given the many changes to Concourse B since the 2011 400Hz design was
completed. 
BACKGROUND 
This portion of the project was originally authorized in June 2007 under a project wide
authorization. The design was completed to 90% in December 2008 and the project was placed
on hold due to the economic environment. In July 2010 the project was reactivated. In 
December 2012, the B Concourse 400Hz ground power system portion of the scope was placed
on hold since the aircraft types that might utilize that concourse was uncertain. The new
generation of aircraft requires a higher level of electrical service due to recent technology
advances, the Boeing 787 being one example. Since 2012, the B Concourse has undergone
several significant changes.  Gates B1 and B4 have been added, the preconditioned air (PC air)
project on the B Concourse has been completed, and the National Electric Code has gone
through two updates. The B Concourse 400Hz ground power system will need to be redesigned
to ensure the system will provide the best possible service to the airlines and traveling public.
Staff will return to request Commission authorization to advertise and execute a construction
contract after the design has been completed. 
PROJECT JUSTIFICATION AND DETAILS 
Project Objectives 
Advance the Port's Century Agenda objective of reducing aircraft emissions and noise 
Provide sufficient power to the B Concourse gates to support the current and next
generation aircraft 
Enable the Airport to maximize the use of each B Concourse gate 
Reduce the possibility of a carrier being assigned to a gate without the same amenities as
the rest of the airport 
Scope of Work 
The scope of work for this project includes the design and construction of a 400Hz ground power
system for all 13 B Concourse airport-owned gates. The project will install two 400Hz motor 
generator sets, gate-boxes and other equipment to ensure adequate power is provided to all 13 B
Concourse gates. The new 400Hz motor generator sets and gate boxes will provide adequate
ground power for current and future generation aircraft that will utilize the B Concourse gates. 
Schedule 
Design               January-July 2015

COMMISSION AGENDA 
Ted Fick, Chief Executive Officer 
December 1, 2014 
Page 3 of 5 
FINANCIAL IMPLICATIONS 
Budget/Authorization Summary              Capital     Expense   Total Project 
Original Budget                      $9,385,000          $0    $9,385,000 
Previous budget changes (net)             $2,265,480      $516,520    $2,782,000 
Current budget increase                  $2,828,489     $652,823    $3,481,312 
Revised Budget                     $14,478,969    $1,169,343   $15,648,312 
Previous Authorizations (Original Scope)      $8,686,969     $734,343    $9,421,312 
Art Pool Transfer                       ($44,000)          $0     ($44,000) 
Previous Authorizations (400Hz)           $3,789,688          $0    $3,789,688 
Remaining budget to be authorized          $2,046,312     $435,000    $2,481,312 
Total Estimated Project Cost              $14,478,969    $1,169,343   $15,648,312 
Project Cost Breakdown                   Capital      Expense        Total 
Design Phase                         $850,000          $0     $850,000 
Construction Phase                    $4,604,000     $435,000    $5,039,000 
State & Local Taxes (estimated)             $382,000          $0     $382,000 
Total                                $5,836,000      $435,000     $6,271,000 
The costs in the budget/authorization table include all costs associated with the project. All
elements of the project except the Concourse B 400Hz have been completed. The project cost
breakdown reflects the costs associated with the remaining scope to be completed. 
Budget Status and Source of Funds 
This project, C800019, was included in the 2015  2019 capital budget and plan of finance with
a budget of $11,650,480.  The budget increase will be transferred from the Aeronautical
Allowance CIP (C800404), resulting in no net change to the airport capital budget. The funding
sources will include the Airport Development Fund and future revenue bonds.  The Port
anticipates issuing revenue bonds in 2015 to fund a number of projects. The expense portion of
the budget includes previous design costs that were written off and charged to expense in 2014
($218,000) as well as costs for regulated materials. 
Financial Analysis and Summary 
CIP Category             Renewal/Enhancement 
Project Type              Renewal & Replacement 
Project cost for analysis        $6,271,000 
Business Unit (BU)          Terminal  Airline Equipment 
Effect on business performance  NOI after depreciation will decrease 
CPE Impact             CPE will increase by $.03 in 2017. The Airlines will
realize lower operating and maintenance costs as a result
of this project.

COMMISSION AGENDA 
Ted Fick, Chief Executive Officer 
December 1, 2014 
Page 4 of 5 
Lifecycle Cost and Savings 
Annual operating and maintenance costs have been calculated by Aviation Maintenance at
approximately $4,723 per gate per year. This results in a total cost for the entire system of 13
gates at Concourse B of $61,400 for the first year. We anticipate an estimated 3% inflation
escalation thereafter. This is based on the level of repair currently being performed on the
systems from actual costs for 2012  2014 year to date. The additional gate equipment added
will result in an additional work load equivalent to one half of a Full Time Equivalent (FTE).
Any request for FTE will be incorporated in the overall Aviation Maintenance budgeting
process, and is not included in this request. 
STRATEGIES AND OBJECTIVES 
The Gate Improvements Loading Bridges Project supports several of the Port Strategies and
Objectives, notably; 
This project promotes the Port's Century Agenda objective of meeting the region's air
transportation needs at the Airport for the next 25 years. Flexible gate operations will allow for
more efficient utilization of the airport's existing facilities. This project will reduce aircraft
emissions and noise by providing 400Hz ground power so that the aircraft need not operate the
onboard auxiliary power units. 
TRIPLE BOTTOM LINE 
Economic Development 
This project supports the Airport's initiative to standardize equipment and provides the flexibility 
the airport needs to assign gates and to operate more efficiently. 
Environmental Responsibility 
This project will reduce the amount of emissions and noise generated by aircraft by eliminating
the need to use the aircrafts onboard auxiliary power units to operate the aircrafts electronics 
before and after gate arrival. 
Community Benefits 
This project supports the Airport's strategy to operate a world class international airport by
anticipating and meeting the needs of our tenants, passengers and the region's economy.
Minimizing new facilities construction requirements by making new operational improvements
with up-to date equipment and technology helps to minimize costs to the airlines, thereby
supporting the Airport's strategy to reduce airline costs. The program manager will collaborate
with the Office of Social Responsibility (OSR) to maximize small business participation 
throughout this project.

COMMISSION AGENDA 
Ted Fick, Chief Executive Officer 
December 1, 2014 
Page 5 of 5 
ALTERNATIVES AND IMPLICATIONS CONSIDERED 
Alternative 1)  Do nothing: do not install a 400Hz Ground Power System on the 13 gates at the
B Concourse. This alternative will result in the airlines on B Concourse not having the same
level of service as all the other concourses and gates here at the Airport. Airlines will continue to
use emission and noise producing systems  to generate aircraft power.  This is not the
recommended alternative. 
Alternative 2)  Install a 400Hz Ground Power System at all 13 gates on the B Concourse in
order to optimize gate flexibility, accommodate growth and provide the ground power systems
that the current and future aircraft will require. Provide the best level of service possible for our
airlines and the traveling public. This is the recommended alternative. 
ATTACHMENTS TO THIS REQUEST 
Computer slide presentation. 
PREVIOUS COMMISSION ACTIONS OR BRIEFINGS 
December 4, 2012 Commission authorized the advertisement, award and execution of a
major construction contract not to exceed $8,242,000. 
March 6, 2012 the Commission authorized $328,000 expense funding to CIP 800019. 
October 11, 2011 Commission authorized a major construction contract in the amount
of $6,144,000 of the authorized $12,883,000. 
June 14, 2011 Commission authorized an additional $3,489,000 to CIP 800019
increasing the total project budget to $12,883,000. 
June 28, 2007 Commission authorized $9,385,000 (CIP 80019) to replace the 
400Hz Ground Power systems at the South Satellite and B Concourse plus upgrade 29
gates with 400Hz equipment and Potable Water Cabinets. 
December 10, 2002 Commission authorized $2,614,000 (CIP) 102102 to replace and
upgrade the 400Hz Ground Power system at the North Satellite