If you're curious where these rivers are, take a look at a Map of California Rivers that I made a few years ago[1]. Note that nearly the entire Sierra Nevada ra

If you're curious where these rivers are, take a look at a Map of California Rivers that I made a few years ago[1]. Note that nearly the entire Sierra Nevada range drains through the San Francisco Bay. Also note the small blue globs along the rivers (e.g. Yuba) - these are reservoirs, which provide some degree of flood protection, though probably not enough for the size of event described. 1. https://sites.google.com/site/calirivermap/