3M B229 Parking Ramp

The 16,000-sf B229 parking ramp replaced an existing ramp. The ramp consists of four tiers and 1,847 stalls with access to the west and northwest on tier two and the east on tier one. Three stair towers were constructed to accommodate a maximum travel distance of 300 ft. The northeast tower houses two elevators. An existing skyway was reconnected on tier two and a security checkpoint is also located at this connection. The main structural system for the ramp is post-tensioned concrete.

3M Company



St. Paul

16,000 sf

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