From their FAQ:
“With the completion of the route assessment, RTC is working with state and local partners across the preferred route to determine the costs associated with trail development. Projected trail development costs will provide the detail necessary to advocate for the federal, state and local funds and private investment that will be critical to completing the trail gaps along the route.
Based on RTC’s experiences completing regional trail networks across the country, we expect that a combination of federal funds dedicated to trail building, as well as state and local funds and private investment, will be critical to complete the trail gaps along the route. RTC actively advocates for federal and state programs used to support trail, walking and biking projects across the country, and will continue to do so.”
So yeah...they expect taxpayer funding in addition to any donations.
Exactly. See my post right above...