Parking ramp will be closed until May 22 The parking ramp will be closed for yearly spring cleaning until May 22. The skywalk and towers will be open if you choose to park in the surface lot east of Columbia Rd (lot 10). For the summer, this lot converts to a G zone, so any space with a current permit will work. We apologize for any inconvenience this needed work my cause. -- UND Parking and Enforcement.