page_title: Nizhny Novgorod Oblast
section_title: External links
hierarchical_section_title: Nizhny Novgorod Oblast / External links
caption_attribution_description: English: Shukhov Towers on the Oka River near Dzerzhinsk, in Nizhniy Novgorod Oblast, central Russia – hyperboloid diagrid shell electricity pylons. The Shukhov Towers were part of 110 kV power lines crossing the Oka River. Between 1927 and 1929, two parallel-running, 110 kV three-phase AC power lines with towers designed by Russian engineer and scientist Vladimir Shukhov (1853–1939) were built there. For the Oka River crossing, six hyperbolic pylons (three for each power line) were built, a 20 metre tall anchor pylon, a 68 metre tall crossing pylon on the South shore and a 128 metre tall crossing pylon on the North shore. As the terrain on the South shore is hilly, the pylons there were lower. In 1989 the powerline was rerouted and the 20 and 68 metre pylons were dismantled. The 128 metre pylons were left intact as a monument. Today, only one of the 128 metre pylons stands as the other (eastern one) was illegally demolished to sell its steel in May 2005. (The west tower is the world’s only surviving hyperboloid electricity pylon.) The Shukhov Towers each consist of five 25-metre steel lattice sections, formed by single-cavity hyperboloids of revolution. The pylon sections are made of straight profiles, the ends of which rest against circular foundations. The tower's circular concrete foundation has a diameter of 30 metres.
context_page_description: Nizhny Novgorod Oblast, is a federal subject of Russia. Its administrative center is the city of Nizhny Novgorod. It has a population of 3,310,597 as of the 2010 Census. From 1932 to 1990 it was known as Gorky Oblast.
  The oblast is crossed by the Volga River. Apart from Nizhny Novgorod's metropolitan area the biggest city is Arzamas. Near the town of Sarov there is the Serafimo-Diveyevsky Monastery, one of the largest convents in Russia, established by Saint Seraphim of Sarov. The Makaryev Monastery opposite of the town of Lyskovo used to be the location of the largest fair in Eastern Europe. Other historic towns include Gorodets and Balakhna, located on the Volga to the north from Nizhny Novgorod.
context_section_description: Official website of the Government of Nizhny Novgorod Oblast (in Russian)
  Official website of the Legislative Assembly of Nizhny Novgorod Oblast (in Russian)
  Nizhny Novgorod City Guide Travel and business guide to Nizhny Novgorod
  (in English) Central Eurasian Information Resource; Images of Nizhny Novgorod Oblast – University of Washington Digital Collections
caption: Shukhov towers built in Nizhny Novgorod suburbs near Dzerzhinsk in 1927–1929
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