Ribbon cutting on Oct 29th, see details in the link. I've been walking through here, watching the build-out and it looks amazing. Guess I'll need to get my bike out for a spin through the park, or "The Pit" as it is being named.
It is pretty easy to ride from Burtonsville, down Greencastle Rd (watch that US-29 crossing, though) and connect up with Fairland Regional Park. Looks like they may be building some limited parking right near the skills park which will likely fill up quickly.
Close to location of new parking area for bike park. https://www.google.com/maps/dir//39.0791678,-firstname.lastname@example.org,-76.9296472,433m/data=!3m1!1e3!4m2!4m1!3e0