The (SF Bay Model), located in Sausalito, California, is a massive three-dimensional hydraulic engineering tool that serves as a working scale model of the San Francisco Bay and Sacramento-San Joaquin River Delta. This 1.5-acre scientific instrument was originally designed to simulate tides, currents, and water flow to test major infrastructure proposals before the advent of modern computer modeling. 1. Executive Summary: Purpose and Origin

The model is typically used for:

The model is constructed from 286 individual concrete slabs, joined together like a giant jigsaw puzzle. It doesn't just show the outline of the bay; it meticulously reproduces shipping channels, rivers, dikes, bridges, and even the piers in the San Francisco harbor. The "Tidal Hut" and Engineering Feats