Specifications 1890, 1892, 1895-1902, 1904-1908, 1912. 1907. Earthwork and structures, Ralston lateral, station 231+25.02 to station 413+69.25, laterals R-1, R-4N, R-6N, R-9N, R-11N, R-15-2N, R-15-6, R-15-9, R-15-11, R-26, R-28, R-32, R-39, R-41, and sublaterals and north alkali drain, Heart Mountain division, Shoshone project, Wyo.