To expand the use of the Phoenix Convention Center, the City needed to replace an existing shoring wall with one that could support the load of a pedestrian bridge doubling as additional event space. The wall needed to be constructed in a very tight workspace with challenging soil conditions and had to avoid numerous underground utilities and the existing wall’s tie-backs, impact to a neighboring project to replace a 5-foot diameter storm sewer, and meet Valley Metro’s zero vibration tolerance for the live light rail lying directly alongside the new wall’s location. This session will show participants a successful case study of how city staff and the design and construction teams worked together to provide the city with expanded and improved facilities safely under physically constrained circumstances. After this session, participants will be able to:
• Identify design and construction techniques for subterranean infrastructure.
• Identify challenges in constructing infrastructure in a dense urban environment.
• Recognize opportunities to engage other agency staff to support project solutions.

Contributor/Source

Robert Stanley

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