This photograph of the central spill and fishway of the Rock Island dam in 1940 shows the first mainstem dam on the Columbia River. It is just one of a group of photographs recently released by the Oregon State University Archives on flickr. This release is the tip of the ice(water?)berg. Have a look at the Western Waters Digital Collection to see how one archives is making its unique collection available for public view.

On a smaller scale, Beau Freeman, a Senior Water Resources Engineer at California Polytechnic State University has created a website displaying his private collection of irrigation postcards, irrigation technik. I happened upon several that depicted the CPR projects in southern Alberta.