COMMISSION 
AGENDA MEMORANDUM                        Item No.          6j 
ACTION ITEM                            Date of Meeting     February 26, 2019 
DATE:     January 16, 2019 
TO:        Stephen P. Metruck, Executive Director 
FROM:    Michael Ehl, Director, Aviation Operations 
Wendy Reiter, Director, Aviation Security 
SUBJECT:  Checkpoint 1 Expansion at Seattle-Tacoma International Airport (Short Form) 
Amount of this request:                 $560,000 
Total estimated project cost:            $560,000 
ACTION REQUESTED 
Request a single Commission authorization for the Executive Director to (1) proceed with design
and construction of the Checkpoint 1 Expansion project at Seattle-Tacoma International
Airport; and (2) use Port crews to construct the project. This single authorization is for the total
estimated project cost of $560,000. 
SUMMARY 
As part of an airport-wide strategy for managing passenger security lines during the busy
summer travel period, and in coordination with the Transportation Security Administration
(TSA), the Airport is proposing to add two standard screening lanes at Checkpoint 1, located at
the south end of the Airport next to the international ticket counters. This would bring the total
number of lanes at Checkpoint 1 up to four. This would allow Checkpoint 1 to screen south end
TSA pre-check passengers, permitting more general screening lanes at Checkpoint 2. 
The scope of this project includes construction of checkpoint infrastructure and installation of
two standard screening lanes  comprising two X-Ray machines and a  walkthrough metal
detector. This project will also include the installation of a second travel document checker
position, and the relocation of known crew member, airline storage and other work necessary
to provide the two lanes at Checkpoint 1. 
This request will expedite project completion in time for the 2019 summer peak travel period. It
is anticipated that these lanes will be removed for other facility needs in the next couple of
years; therefore, this request is for expense funds. This expenditure was not included in the
2019 operating budget. The Aviation Division will strive to identify savings to absorb this cost.
The Airport is currently studying potential capital projects to add additional security screening
lanes in the future. However, those projects would not be available for 2019. 
There is a layout diagram attached to this memo. 

Template revised April 12, 2018.