Situated near two major rivers, the City of Sacramento is prone to flooding. In the 1800s, after several major floods that enveloped downtown, Sacramento built a system of levees and weirs to hold back the floodwaters, and raised the city's streets up to their current levels. 

• How much effort and money should be spent to shore up the Delta levees? This article argues that many Delta islands are essentially not worth saving. Look for opposite view?