Columbia-Harlem SBDC: Locations & Directions Address: Interchurch Center 475 Riverside Drive, 3rd floor New York, NY 10115-6902 Director: Kaaryn Simmons Center: (646)745-8573 Email Address: email@example.com Hrs. of Operation: M - F, 9 AM - 5 PM Directions: The Columbia-Harlem SBDC is located in the Interchurch Building on 475 Riverside Drive, 3rd floor room 312H. The building is located bewteen 119th and 120th street and you can enter either from Riverside Drive or Claremont Ave. Directions. Five bus lines (M4, M5, M11, M60, M104) and one subway line (the #1 local) serve the Columbia neighborhood. The Columbia University subway stop is 116th Street. (The #2 and #3 express trains do not stop at Columbia University; if you take either of these trains, be certain to transfer at 96th Street to the #1 local northbound to get to Columbia). Alternatively, our center can be reached from the #1 train's Harlem 125th street station.