http://www.subterra.us/wp-content/uploads/2017/02/squareLogoWork.jpg251300jsubthttp://www2.subt.com/wp-content/uploads/2016/04/aspectRatioWebsite-300x137.jpgjsubt2017-02-07 07:28:012017-02-11 00:19:13Bulletin 180 - Howard Hanson Dam, Blasting Near the Concrete Intake Tower and Gate Structures, Cumberland, Washington