This week's challenge was taken in the Bonnet Carre' Spillway in Montz, Louisiana. The structure was built in the early 1930's and is still rock solid. My oldest brother, who died in a house fire in December 2006, was one of the workers who helped build the Spillway. I believe that is where he acquired his love of concrete which he mixed by hand even in his 92nd year.
http://www.pbase.com/image/80918462.
Coleen