Swinerton Quarterly

Swinerton Quarterly

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A Concrete Record at Viejas Casino

In February 2013, Swinerton Builders San Diego was awarded the Viejas Casino Parking Structure project in Alpine, California. Work started in May and wrapped up in late November. This $12 million design-build project is also the Orange County Concrete group’s largest 100% self-performed parking structure to date; the group self performed  nearly $5 million worth of work. Construction was done on an aggressive schedule, as Viejas needed the parking structure to be open in time for Thanksgiving. In order to finish on schedule, the project broke ground while design was still under way. Daily changes were made at the start while work was being put in place, all while plan approvals were being made with the Gaming Commission.

The 280,000-square-foot parking structure is four stories high with three elevated decks. Built with auger-cast deep foundations, it has space for 850 vehicles. It has two fully enclosed pedestrian bridges, one linking to the casino and one to the hotel—both of which were recently built by Swinerton. The casino bridge is a 13-foot-wide, full-conditioned, steel truss span. It has carpeting and stone flooring, a storefront exterior, and a hard-lid ceiling. The hotel bridge is a nine-foot wide, open steel truss span. It has a colored concrete finish and a stainless steel horizontal guardrail system.

Two elevator towers were built, for a total of three elevators. They consist of a mix of stucco and stone veneer skin, with stainless steel fronts. Significant road work was also in the project scope, including two new loop roads for east and west access. The sides of the road are landscaped, while additional surface improvements were made to the adjacent valet parking lots. Before the parking structure footings were built, a major relocation of the existing underground utilities was required. Relocated lines included natural gas, water, sewer, and storm. The primary electrical feed to the casino was also relocated, which required a temporary powering of the 24-hour casino. This involved tight scheduling and was successfully accomplished through a 16-hour shutdown coordinated in 30-minute increments—all with zero impact to casino operations.

In order to ensure the parking structure could be built as designed, the Orange County Concrete group modeled 100% of the concrete work and produced formwork shop drawings for use in the field. All of the concrete formwork was detailed as well, including the columns, deck, and ramps. Set on a very constrained site, they utilized just-in-time delivery for materials and strict laydown procedures were put in place. At the height of construction, over 30 Swinerton concrete employees were working on site. Slab-on-grade was poured in June, while the deck was poured from July through the end of August. When all was finished, the team formed and placed over 7,500 cubic yards of concrete slabs, beams, decks, columns, and walls.

Congratulations to Swinerton Builders San Diego and the Orange County Concrete group for completing this challenging project on time, including: Tony Martin, Richard Mendiola, Jeff Goodermote, Stephen Campion, Andy Dillavou, Stephen Flint, Deena Takato, Jenny Clough, Jane Koontz, John Hallgarth, and Ken Li.