Sustainable Airport Master Plan
Near-Term Projects
Environmental Review
Forecast and
Schedule Update
Item No. 9b_ supp
Meeting Date: January 28, 2020
SAMP Demand Forecasts and
Constrained Scenarios
2
2027 2032
Type
Aircraft
Operations
Passengers
(millions)
Aircraft
Operations
Passengers
(millions)
SAMP Demand Forecast (2015)
Unconstrained
477,000
56.0
527,000
63.0
SAMP Updated Demand Forecast (2019)
Unconstrained
520,000
61.1
557,000
68.2
No Action (w/o projects) scenario
Constrained
499,000
58.1
506,000
60.7
Proposed Action (w/projects) scenario
Constrained
508,000
59.2
524,000
63.1
250,000
300,000
350,000
400,000
450,000
500,000
550,000
600,000
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
Environmental review analysis based on
constrained growth scenarios
3
Aircraft Operations
Proposed Action
Constrained Scenario
No Action
Constrained Scenario
Extended Schedule
• Update to the demand forecast and development of
constrained operating growth scenarios
• Advanced planning coordination to support environmental
review
• Additional technical environmental analysis, in response to
scoping comments
• Separation of the NEPA and SEPA documents and processes
• Continued extensive stakeholder engagement and community
outreach
4
2020
Extended Schedule
5
NEPA EA Draft
Document
(Oct. 2020)
NEPA EA Agency &
Public Review Complete
(Nov. 2020)
NEPA EA Final Document & Decision
(Apr. 2021)
SEPA EIS Agency &
Public Review Complete
(July 2021)
SEPA EIS Final
Document & Decision
(Sep. 2021)
Updated Forecast
Refined Purpose and Need
(Jan. 2020)
2021
Existing Condition
Impact Analysis
Draft Sections
(June 2020)
2022
SEPA EIS Draft Document
(May 2021)
Scoping
(Fall 2018)
Alternatives & No Action
(Feb. 2020)
= Completed
= Key milestones
= Agency and Public Comment Period
