What will be studied in Tier 2?
Once the Tier 1 Environmental Impact Statement (EIS) results in a corridor being selected as the preferred corridor alternative, the project will proceed to Tier 2. Tier 2 will consist of a series of individual environmental and engineering studies addressing location specific design details and environmental impacts in smaller sections called Sections of Independent Utility (SIU). SIUs are portions of the preferred corridor alternative that can be constructed independently of each other. Tier 2 studies will focus on individual SIUs. Once the Tier 2 study is completed for an SIU, engineering plans will be developed and construction of that SIU can be begin once funding is secured.
