On November 3, Tajik authorities announced that they had completed the main diversion tunnel of the Rogun Dam project. This means that it is now technically possible to divert the Vakhsh River from the part of the valley in which they plan to place the giant dam. Dewatering the construction areas will allow the authorities to start building the facility (www.avesta.tj, November 3).
According to Tajik hydropower experts, there are strong technical reasons for blocking the river as soon as possible. The lake created behind the temporary dam when the river is diverted will enable the authorities to accumulate water next spring and summer. This water can be released in winter so that downstream hydropower plants (HPPs) convert it into additional electricity, helping the country to prevent blackouts (www.avesta.tj, November 3). Besides, the lake will stop the sedimentation of the Norak HPP’s reservoir further downstream, which is reportedly close to reaching a critical level (www.regnum.ru, November 7). Any serious breakdown of the Norak facility, which produces about 70 percent of the country’s electricity output, will have catastrophic consequences for the country. Overall, according to the company building the dam, “the diversion of the river is technically possible now,” but, “the decision to block the river flow is essentially political and has to come from the highest level” (www.avesta.tj, November 3), that is, from the country’s president.