Translation. Region: Russian Federation –
Source: Government of the Russian Federation – Government of the Russian Federation –
An important disclaimer is at the bottom of this article.
The government continues its consistent efforts to comprehensively develop the country's infrastructure. To this end, large-scale projects are being implemented, including the construction of city bypasses.
A bypass road around Adler will be built in the Krasnodar Krai. The new road will reduce travel time to Sochi Airport and Krasnaya Polyana and will also divert transit traffic from the resort area, creating comfortable conditions for local residents and tourists. The final approval for the third phase of the Adler bypass, which includes the construction of a tunnel complex, has been received, according to Deputy Prime Minister Marat Khusnullin.
"The country's infrastructure development is inextricably linked to the modernization of the entire road network. Therefore, we are actively building new highways and upgrading existing ones. Specifically, in the Krasnodar Krai, we are continuing to build the Adler bypass. This is an ambitious project that requires unique engineering and technological solutions. We have now received a positive assessment from the Main State Expertise Authority of Russia for the third and final of its five construction phases. This is the most complex and labor-intensive phase, as it involves constructing a tunnel complex within rock at a depth of up to 250 meters. It will include two parallel road tunnels with a series of structures, a 916-meter-long overpass from the bridge crossings over the Kudepsta River to the western portal, and a 1,412-meter-long complex of retaining and landslide protection structures. Upon completion of all construction phases and commissioning, the Adler tunnels will be the longest road tunnels in Russia," said Marat Khusnullin.
The Deputy Prime Minister clarified that the tunnels' construction length, according to the approved design, is 5,878 meters for the forward section from the Kudepsta microdistrict toward Krasnaya Polyana and 5,894 meters for the return section. The tunnel's internal diameter will be 10.9 meters.
Particular attention has been paid to safe operation. Eleven evacuation connections are provided between the tunnels, allowing for underground movement if necessary. Furthermore, a 98-meter-deep ventilation shaft will be built as part of the tunnel complex. The total length of the Adler bypass, excluding interchanges, will be 8.1 km.
According to Vyacheslav Petushenko, Chairman of the Board of the state-owned company Avtodor, preparations are currently underway at the production site in the village of Vysokoye for the installation of tunnel boring machines.
"They will be used to bore tunnels. For this purpose, we previously reconstructed the overpass near Ivanovskaya Street, widening it to two lanes. The space underneath will be used to assemble the extended structures of the tunnel boring machines. Furthermore, in 2024 and 2025, we tested the piles used in the retaining walls of the tunnels' eastern portal and relocated utility lines. It's important to note that when designing the third phase of the Adler bypass, we considered numerous routing options. Ultimately, we utilized the best practices accumulated in the design of similar structures both in Russia, including during the Olympic construction in Sochi, and internationally. Many of the future facility's technological characteristics will be record-breaking and will be implemented for the first time," said Vyacheslav Petushenko.
When designing this stage, many aspects were taken into account – from the anthropogenic load at a specific location on the slopes in the area of the proposed tunnel exits to the complex engineering and geological conditions of the Caucasus Mountains and the execution of work in densely populated tourist areas of Sochi.
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