To expand their Capitol Complex in Austin, The State of Texas is adding two new state office buildings and five levels of underground parking, with a landscaped pedestrian mall atop the underground parking. Brierley Associates was selected to provide final detailed design of the entire Phase 1 retention system, an approximately 40-to 65-ft deep, 500,000+ CY excavation through overburden and limestone bedrock.

Charles Luxford and Eric Lindquist describe the complex retention system designed by Brierley Associates in article originally published in DFI’s bi-monthly member magazine, Deep Foundations, July/August 2021 issue.  DFI is an international technical association of firms and individuals in the deep foundations and related industries. To join DFI and receive the magazine, go to www.dfi.org.