The project The $1.8 billion expansion of The Seminole Tribe of Florida’s Hard Rock Casino includes an iconic, guitar-shaped 36-story hotel tower and resort and various low-level structures housing resort amenities. The design included construction of a complex 800-ft-long valet tunnel to facilitate smooth trac ow. The challenge A 125-ft-long section of the tunnel ran beneath an existing multi-story parking garage with a clearance area of just 16ft, requiring an alternate design approach to the traditional sheet pile-driving technique. Hard Rock Casino TunnelAdditional headroom constraints were created by an existing $8 million, 200-ft-long television screen adjacent to the garage entrance. The solution Hayward Baker provided a customised solution consisting of multiple techniques to add

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