A Level 1B CEE was completed for the U.S. 1, Section RC1 and Section RC2 project in 2006. Based on changes to the design of the project, this CEE document required revisions to accurately depict the impacts to the natural and built environments, which resulted in the completion of a Level 2 CEE re-evaluation in 2016/2017. The Level 2 CEE re-evaluation document was approved in 2017 and can be found by clicking on the following link here.