Not sure if it's for charity or not...
But it is of interest nonetheless. The Big Dam Bridge, closing the loop of the Little Rock and North Little Rock, AR, multi-use trails will be opening on September 30, with the inaugural Big Dam Bridge 100 happening on October 1st.
http://www.bigdambridge.com/
An article about the bridge, which will be the longest pedestrian/bicycle bridge in the world, is here:
http://arkansasbusiness.com/article....=all&link=perm
And it was recently featured in the editor's column in an issue of Bicycling magazine.
I signed up my son and I to do the 20 miler. Please PM me if you decide to come to the Natural State to do the century!
Karen