3
rd
Floor GT Booth Enhancements
Project Authorization
Item No.
8d_supp
Date of Meeting May 23, 2023
Project Purpose and Scope
Purpose:
To renovate and expand the existing facility to support ground
transportation operations
Scope:
• Expansion of administration space including a staff breakroom
and restroom
• Upgrade of customer restrooms to meet accessibility
requirements
2
Project Location
3
Existing GT Booth
N
MAIN GARAGE
Additional Project Information
• Construction will be phased to maintain SEA operations during
construction
• Includes technology enhancements (Wi-Fi, cell phone
coverage)
• Does not remodel existing Ground Transportation Center plaza
4
Existing Photos
5
Existing Front Customer Service Window Existing Back Administration Area
Proposed Improvements
6
Looking Southwest
Customer Service Window and Booth Entrance
Construction Phase 1
Construction Phase 2
Existing
GT Booth
Project Budget:
Original Budget: $2,800,000
Revised Budget: $3,181,000
Budget revision due to:
• HVAC system risk (design
$131,000, construction
$250,000)
Key Schedule Milestones:
• Design Start: Q2 2023
• Construction Start: Q4 2024
• In-Use Date: Q3 2025
Project Budget & Schedule
7
We are here
Cone of Certainty
Project Risks and Opportunities
Risk /
Opportunity
Description Probability Impact Mitigation Plan
Risk
HVAC system improvements
constrained due to limited floor
clearance in SEA Garage
H H
Exploring two options through
30% design; included additional
project contingency for risk
Risk
GT Booth needs to remain in
operation during construction
H H
Developed phased approach to
construction
Risk
Existing plaza tile may be
damaged; product not available
for replacement
M M
Utilize a close match
replacement tile
Opportunity
Limited architectural standards
for facilities in SEA Garage
H L
Evaluate materials and finishes
and establish standard
9
