S 160
th
Street Lot TNC Improvements
Additional Project Authorization
8j_supp
Item No.
August 12, 2025Date of Meeting
Requested Action
Request Commission authorization for the Executive Director to
take all steps necessary to complete the South 160th Street TNC
Lot Improvement Project at Seattle-Tacoma International Airport
(SEA). This request is an increase in the amount of $1,100,000
for a total authorization of $8,400,000.
2
Project Purpose
Purpose:
To minimize operational maintenance costs and encourage sustainable ground
transportation services with installation of permanent lighting system and EV chargers.
Scope:
• Replacement of existing diesel-powered temporary light plants with permanent
lighting systems
• Installation of ten EV chargers with associated electrical infrastructure upgrades
• Installation of four permanent restrooms for TNC operators
• Installation of security cameras for operational awareness
• Landscaping and irrigation improvements per Port standards
3
Project Location
4
24
th
Ave S
S 146
th
St
S 160
th
St
S 160
th
St GT Holding Lot
Rental Car
Facility
N
TNC Restrooms Electrical Infrastructure
Project Progress Photos
5
SEA’s Ground Transportation Framework
Guiding Principles
Goals
Strategies and Tactics
GTAP
SAMP
Operational
Contracts
Taxi, TNC,
other GT
• Reduce environmental
impact
• Reduce roadway
congestion
• Support and improve
customer choice and
experience
• Social equity
• Generate revenue for
sustainable airport
• 50% scope 3 GHG
reduction
• 30% private vehicle
pick-up/drop-off
roadway relocation, NE GT
Facility
Capital
Projects
• Financial
sustainability
• Social Equity
• 15 minutes
tower to curb
e.g.
Widen Arrivals Approach
e.g.
Behavior Change
Modeling, SEA Employee
Transportation Strategy (SEA
MOVES)
e.g.
TNC rematch, garage utilization
e.g.
e-KPIs, GT electrification
incentive
e.g.
6
6
Completed Work:
• Installation of permanent
restrooms (Q3 2024)
• Installation of permanent lighting
(Q4 2024)
• Completion of landscape
improvements (Q4 2024)
• Completion of electrical
infrastructure upgrades (Q3
2025)
Remaining Work:
• Procure EV chargers Q3 2025
• Complete site improvements Q4
2025
• Install and activate EV chargers
Q4 2025
Project Schedule
7
Previous Budget: $7,300,000
Revised Budget: $8,400,000
Budget increase due to:
• Port purchase and installation of ten EV
fast charging points
• Work previously assumed to be
completed by third party partner
Department of Commerce Grant
• Reimbursement of up to $1,229,322
Project Budget
8
Transformer
Electrical Equipment
EV Chargers
Questions?
9
