COMMISSION 
AGENDA MEMORANDUM                        Item No.          8e 
ACTION ITEM                            Date of Meeting        July 13, 2021 

DATE:     July 2, 2021 
TO:        Stephen P. Metruck, Executive Director 
FROM:    Eileen Francisco, Acting Director, Aviation Facilities and Capital Programs 
Wayne Grotheer, Director, Aviation Project Management 
SUBJECT:  Building 161G AVM Facility Upgrade (CIP# C800924) Construction 
Amount of this request:               $1,993,000 
Total estimated project cost:          $2,972,000 
ACTION REQUESTED 
Request Commission authorization for the Executive Director to (1) advertise, award, and
execute a construction contract for the construction of the Building 161G AVM Facility Upgrade
project at Seattle-Tacoma International Airport (Airport).  The  amount of this request is 
$1,993,000 for a total estimated project cost not to exceed $2,972,000. 
EXECUTIVE SUMMARY 
The 161G Aviation Maintenance (AVM) Facility (known as Air Cargo 4) at the Airport is a 50-yearold
former mail sorting facility that has had minimal updates and modifications. This project will
replace obsolete and failing Heating, Ventilation, and Air Conditioning (HVAC) systems, new
energy efficient lighting, and provide essential communication connections to the building and
offices. These upgrades will provide a reliable working space for the approximately 120 Port
maintenance staff that operate from this critical facility. 
JUSTIFICATION 
The 161G AVM facility is the operational base to approximately 120 Port maintenance staff. The
maintenance groups housed in this facility operate 24 hours a day, 365 days a year, and perform
critical maintenance work to keep the airport and runways operational.  This work includes
winter runway and airport drive snow operations; servicing of the Port's fleet vehicles, police
cars, and airport shuttle buses; repairs & maintenance to runways, taxiways, ramps, and airfield
lighting; and carpentry, painting, and striping work throughout the airport's property. For the
last 20+ years this facility has been on the list for potential tear-down and replacement, as a
result, the building improvements have been delayed. This project addresses the facility's most
critical needs. 

Template revised January 10, 2019.

COMMISSION AGENDA  Action Item No. _8e__                               Page 2 of 5 
Meeting Date: July 13, 2021 
Failing HVAC, insufficient communication and connectivity infrastructure, outdated analog phone
line, and inadequate office lighting are contributing factors in making this a deficient and
functionally poor-working facility.  This project will install new HVAC equipment in two highly
used areas. The existing phone and data communication connections are still on a copper
network with no digital backbone to support the increased data use. A new fiber backbone will
be installed to the facility and the obsolete copper removed. The lighting in the break rooms and
other areas are fluorescent fixtures, the project will replace these fixtures (approx. 190) with
more energy efficient LED assemblies. Port Construction Services (PCS) support may be required 
for relocation and demolition of furniture and equipment as needed. 
The project work has been scaled to meet the minimum improvements needed to keep the
facility operational and to improve the working environment given the expected remaining life
of the building. This building has been on the list for eventual demolition and replacement for
many years as a part of the Sustainable Airport Master Plan. During that time some of these
systems have failed or degraded and need to be replaced. Further delay of the work could cause
disruption in the service affecting the maintenance personnel operating out of the facility. 
Diversity in Contracting 
The project staff, in coordination with the Diversity in Contracting Department, have set a 12% 
woman and minority business enterprise (WMBE) aspirational goal for the Building 161G AVM
Facility Upgrade project. The goal is based upon the project's scopes of work and baseline
availability of certified WMBE businesses to perform the work.
DETAILS 
Scope of Work 
Communication & Connectivity Infrastructure Upgrade: 
(1)   New/additional fiber optic and copper cabling 
(2)   Installation of new high-grade Wireless Access Point (WAP) units 
(3)   Installation of new telephone/data wall units 
Facility Upgrade: 
(1)   Spot abatement 
(2)   Demolition and removal of obsolete HVAC equipment 
(3)   Installation of new HVAC equipment in two highly used spaces 
(4)   New energy efficient LED light fixtures and occupancy sensors 
(5)   New acoustical ceiling grid panels 
(6)   Installation of new breakroom exhaust fan 


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

COMMISSION AGENDA  Action Item No. _8e__                               Page 3 of 5 
Meeting Date: July 13, 2021 

Schedule 
The project schedule reflects that this facility operates 24/7, year-round. Most of the required
work will be performed during the evening shift when there is minimal crew on-site, for a
moderate but manageable impact to the facility and employees during construction. One
potential risk to the schedule is significant weather events that may require the construction
schedule to be adjusted to not impact snow or maintenance operations. 
Activity 
Commission design authorization               2019 Quarter 4 
Design start                                       2019 Quarter 4 
Commission construction authorization          2021 Quarter 3 
Construction start                                2021 Quarter 4 
In-use date                                       2023 Quarter 1 
Cost Breakdown                                     This Request           Total Project 
Design                                                            $               $979,000 
Construction                                             $1,993,000             $1,993,000 
Total                                                         $1,993,000              $2,972,000 
ALTERNATIVES AND IMPLICATIONS CONSIDERED 
Alternative 1  Do not proceed with construction, and cancel the project 
Cost Implications: approximately $450,000 would need to be expensed. 
Pros: 
(1)   No additional capital funding would be required. 
Cons: 
(1)   Failing infrastructure and communication & connectivity limitations will remain a
concern. 
(2)   The 120+ employees who work here will have to continue to operate in a deficient, lessthan-ideal
work environment. 
This is not the recommended alternative. 
Alternative 2  Proceed with Construction 
Cost Implications: $2,972,000 
Pros: 
(1)   Addresses the most pressing needs of the facility. 
(2)   Creates a better functioning facility and increased workstation efficiency. 

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

COMMISSION AGENDA  Action Item No. _8e__                               Page 4 of 5 
Meeting Date: July 13, 2021 
(3)   Provides  a  more  comfortable  work  environment,  fostering  increased  employee
satisfaction. 
Cons: 
(1)   Requires capital investment. 
(2)   Moderate but manageable impacts to facility operations during construction. 
(3)   This building could potentially be targeted for tear down (in an estimated 5-10 years) in
support of the Sustainable Airport Master Plan (SAMP.) 
This is the recommended alternative. 
FINANCIAL IMPLICATIONS 
Cost Estimate/Authorization Summary              Capital        Expense           Total 
COST ESTIMATE 
Original estimate                                 $4,566,000                $      $4,566,000 
Previous changes  net                         ($1,632,000)         $66,000    ($1,566,000) 
Art (Transfer to Art CIP)                              ($28,000)                 0        ($28,000) 
Revised estimate                                $2,906,000         $66,000      $2,972,000 
AUTHORIZATION 
Previous authorizations                            $979,000                0        $979,000 
Current request for authorization                $1,927,000         $66,000      $1,993,000 
Total authorizations, including this request       $2,906,000         $66,000      $2,972,000 
Remaining amount to be authorized                    $0             $0             $0 
Annual Budget Status and Source of Funds 
This project, CIP C800924, was included in the 2021-2025 capital budget and plan of finance with
a budget of $2,931,000. A budget decrease was transferred to the Aeronautical Reserve CIP
(C800753) resulting in zero net change to the Aviation capital budget. The funding source will be
2021 revenue bond. 
Financial Analysis and Summary 
Project cost for analysis              $2,972,000 
Business Unit (BU)                  Administration which allocates to airfield, terminal, and
landside
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                       $.01 in 2024 


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

COMMISSION AGENDA  Action Item No. _8e__                               Page 5 of 5 
Meeting Date: July 13, 2021 
Future Revenues and Expenses (Total cost of ownership) 
This project is a renewal and replacement project, as such, Aviation Maintenance does not
anticipate any increase, and may even realize a slight reduction in long-term maintenance costs. 
ATTACHMENTS TO THIS REQUEST 
(1)   Presentation slides 
PREVIOUS COMMISSION ACTIONS OR BRIEFINGS 
November 12, 1999  The Commission authorized Design 














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