Highlights:

• 5-level, 650-car parking ramp, with paper wrapped button-headed wire post-tensioning system
• Tendon replacement began as a partial restoration on two levels of the ramp in 1988. During 1992, Reigstad & Associates provided complete restoration design and completed restoration of entire ramp using the Trenching Method™ of tendon replacement
• Restoration Costs: 2.0 million

Client: City of Des Moines, Iowa