Eco-friendly and reliable: how a unique underwater siphon was built in the center of the capital

Translation. Region: Russian Federation –

Source: Moscow Government – Moscow Government –

An important disclaimer is at the bottom of this article.

In 2025, in less than a year, the construction of the Shelepikhinsky gas pipeline was completedthe bottom of the Moscow River.

The facility has become a significant element of the capital's gas infrastructure. The pipeline, which stretches over 170 meters, has improved the reliability of gas supply to six districts in four administrative districts of Moscow. The areas served include residential and industrial areas of Khoroshevo-Mnevniki and Shchukino (Northwestern Administrative District), Khoroshevsky (Northern Administrative District), Presnensky (Central Administrative District), and Dorogomilovo and Ramenki (Western Administrative District).

As they told inMoscow's urban infrastructure complexThe new siphon gas pipeline runs under the Moskva River and connects Bolshaya Filevskaya Street with Shelepikhinskaya Embankment. During construction, specialists dug starter and receiver pits over 20 meters deep, an open-pit section of 16 meters, and the main portion of the route (over 160 meters) was completed using microtunneling. This technology allowed for the pipeline to be laid with high precision under the riverbed using tunneling systems guided by laser navigation systems. Furthermore, a high-pressure steel pipeline pipe, meeting modern reliability and industrial safety requirements, was installed in a protective casing.

The implemented engineering solution has no negative impact on the Moscow River ecosystem or the urban environment. Unlike outdated technologies, which involved laying pipes directly into riverbed trenches, the new pipeline is located at a depth of more than 10 meters beneath the riverbed. This reduced operating costs and eliminated the need for underwater work.

Domestic materials and pipelines meeting current safety standards were used during construction. The pipeline has a service life of over 40 years, and requires no annual maintenance.

Operational monitoring is carried out 24/7 by specialists from Mosgaz's central control room. Modern monitoring systems allow for remote gas shutoff in less than a minute and a half in the event of an emergency. Completion of the project marks a significant milestone in the modernization of Moscow's gas infrastructure and has created an additional reserve of reliability and security for the city's long-term energy supply.

The projects being implemented in the capital to develop and modernize the engineering infrastructure are in line with the goals and objectives of the national project Infrastructure for LifeMore information about Russia's national projects and the capital's contribution can be found atspecial page.

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