You may have heard of the extensive flooding in the Canyon in the spring of 2009. did it ruin everything. the answer is no and the Arizona Republic tells you so in this article http://www.azcentral.com/members/Blog/ShaunMcKinnon/tag/5946 . OH the wonders of nature are once again revealed to us!
Here's a link to a site updating the progress on the Hoover Dam Bypass, an important bridge over the Colorado River that will provide a safer alternative to driving over Hoover Dam.