The Nationwide Parking Ramp was a means of expansion for the Nationwide Campus in downtown Des Moines. Nationwide Realty Investors chose 360 Architects out of Columbus, Ohio as the design architects and OPN Architects served as the Architect of Record. The client required a fully functional and usable parking garage to be durable as well as minimizing future maintenance issues.
Planning and design for the eight level parking structure required 1,690 parking spaces, lobby elevator enclosures, and sensitivity for pedestrian traffic. The design provided ways to enhance cost savings, aesthetics, operations, and performance. The ramp uses cast-in-place post-tensioned concrete slabs, beams, and columns. The backup structure is designed to resist gravity and lateral loads in combination with loads induced by temperature changes, elastic shortening, creep, and moisture induced masonry expansion.
Pedestrian access to the parking structure is provided at points designed to be convenient to pedestrian circulation and promote passive security, minimize hiding places. Pedestrian and vehicle conflicts at ingress/egress points are minimized. The exit areas have minimal visual obstructions and maximize unobstructed sight distance.
The parking structure is open to the fullest extent possible with out compromising safety and security. The parking structure is designed in a manner that there shall be no discharge of storm water off the exterior and interior edges of the elevated floors. Under normal expected rainfall conditions, consideration was given to slope each floor toward the interiors of the structures, and to provide positive drainage.
Designed in collaboration with 360 Architecture.