Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
This section will provide underlying GIS data for all maps and applicable appendices released throughout the planning process.
02/04/21: Due to error in the shape files for "Preliminary Alternative D Maps Data" a revised data set has been generated for all alternatives to resolve the issue. No change in data values.
