This paper uses the case of Vakhshstroi as a lens through which to investigate the interplay of Russian notions about Central Asia and Central Asians with Soviet ideas of modernity. Vakhshstroi was an immense hydraulic project undertaken by the Stalinist administration in the Vakhsh River valley in southern Tajikistan in the 1930s. The aims of the project were twofold: to make the Vakhsh valley the cotton-growing base of the Soviet Union and at the same time transform Tajikistan into a modern Soviet republic and its people into modern Soviet citizens. Vakhshstroi was thus to serve not only as a visible symbol of modern progress and socialist construction, but also as a forge for new Soviet men and women. The paper seeks to determine why the project was largely a failure, both from a technological and an ideological point of view, and to draw larger conclusions from the case of Vakhshstroi about the nature of Stalinist rule in Central Asia, a multiethnic frontier region far from the governing core.