California's infrastructure was established 90 years after it became a state and required a statewide water system to support development. The state established legal frameworks for irrigation districts, which turned Southern California into an agricultural empire. As populations grew in Los Angeles and the San Francisco Bay Area, California needed more water quickly. Various cities and regions established their own water administration boards and systems, though these caused environmental damage, requiring rethinking of water planning. Major construction projects like the Hoover Dam and Golden Gate Bridge helped address water and infrastructure needs.