THE SEDIMENT MUST FLOW

SILT SAND SLURRY: DREDGING, SEDIMENT, AND THE WORLDS WE ARE MAKING

MIMI ZEIGER

BY ROB HOLMES, BRETT MILLIGAN, AND GENA WIRTH; TIBURON, CALIFORNIA: APPLIED RESEARCH AND DESIGN PUBLISHING, AN IMPRINT OF ORO EDITIONS, 2024; 385 PAGES, $50. REVIEWED BY ZACH MORTICE Midway through Silt Sand Slurry: Dredging, Sediment, and the Worlds We Are Making, Rob Holmes, ASLA; Brett Milligan, ASLA; and Gena Wirth, ASLA, describe a clamshell dredger used to yank up muck from California’s Sacramento–San Joaquin Delta. “Scoop; raise; pivot; dump; pivot; lower; scoop. Repeat; repeat; repeat,” they write of the costly and monotonous process. “The emergence of these machines in the delta was neither arbitrary nor predestined. Rather, they were made to be and act like this through a particular set of values, policies, political regimens, ideologies, and attitudes toward the landscape.” If that seems like a grand explanation for machinery…

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Landscape Architecture (Digital) - 1 Issue, February 2025

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