From The Sacramento BEE – At the ripe old age of 64, Folsom Dam is about to hit a growth spurt. Federal crews have begun a five-year effort to raise the height of the dam by 3.5 feet to increase flood protection for 440,000 downstream residents in metropolitan Sacramento, including areas of Arden-Arcade, Rosemont and many areas in the city of Sacramento as far south as the Pocket area and north to upper Natomas.

The Sacramento region, much of built on low-lying land at the confluence of two major rivers, is considered one of the highest urban flood-risk areas in the country. (more) (additional info)