Expand the list of projects and sources by clicking the sidebar icon in the top left of the map. From there you can choose which lists to include. Clicking an icon will reveal details, such as the overall funding level. Icons are color-coded by agency, and you can hide individual layers, such as airports, by clicking the checkmark in the map sidebar. Note: This map only contains funding exceeding $1 million. Some smaller projects, and the 205 airports receiving either $159k or $110k are excluded for visibility. The complete list of airports can be found here.