That’s actually still the BRP, not the Taconic. Cross over to get up to WCC, right turn to get to Kensico dam. You can actually cross over there make a left and go southbound towards the County Center, if you are quick, or crazy.
People have been going around that “gate” for years, trains usually are going pretty slow after leaving the North White Plains station.
Thanks for the clarification. It shows up as the Taconic on Google Maps!