Yakutia's Ambitious Lena River Bridge Project Faces Critical Test in June
Yakutia is gearing up for a major engineering operation on the Lena River. The region plans to float cofferdams into position as part of a new bridge construction project. Work is set to start in early to mid-June, once water levels rise enough for the structures to be safely lowered.
Preparations have been underway for months. A side cofferdam for pier No. 10 has now been fully assembled and stands ready for launch. Two of the three planned cofferdams are already complete, with the third still in progress.
The operation was originally set for last year but faced delays. Sediment buildup blocked the riverbed, forcing a cancellation and requiring costly dredging work worth 500 million rubles. This time, officials have postponed the launch to spring 2026 to ensure higher water levels during the spring flood. Recent meetings brought together project teams to coordinate the upcoming work. The timing depends on river conditions—specifically, the ice drift near Yakutsk on May 17 marked the start of the seasonal window. Floating cofferdams are a first for Russian bridge-building, chosen because of the project’s extreme environmental challenges.
The cofferdams will only be lowered once the Lena’s water levels reach the required height. If successful, this method will pave the way for further construction phases. The project remains on track, with teams closely monitoring river conditions to avoid further setbacks.
