Weekly “Arguments and facts” № 35. What is the future of Siberia? 09/01/2021 Expert response 0 + –
A bridge spanning a river 7 & nbsp; thousand. km really not. However, a few years ago the administration of Jair Bolsonaro (President of Brazil since & nbsp; January 2019 & nbsp;) announced grandiose plans for the & nbsp; development of the country, including the construction of a bridge across the Amazon in the state of Para in the north. Project details (funding, schedule, environmental impact) are not known. In & nbsp; in any case, the matter did not go beyond the swear words.
& laquo; Bridge & nbsp; & ndash; connecting link between cities and & nbsp; sufficiently large cities and & nbsp; roads in the & nbsp; Amazon basin. Local residents prefer boats to all types of transport, & nbsp; & ndash; tells civil engineer, designer of structures on the & nbsp; Volga Alexander Sulimenko . & nbsp; & ndash; & Nbsp; This river has a very unreliable marshy bottom, and & nbsp; would require piles that are too long to build a bridge. Towards & nbsp; the same background in & nbsp; at any time can 'sink'. In addition, the Amazon, whose width in the lower stretches of 100 & nbsp; km, does not have an exact channel. Under & nbsp; its bottom is another river with & nbsp; salt water & ndash; Rio Hamza (watercourse up to & nbsp; 400 & nbsp; km), proof of which has been presented in & nbsp; 2011 & nbsp; g. And & nbsp; twice in & nbsp; year, Pororoca comes from l & nbsp; ocean & nbsp; & ndash; a giant and shy tidal wave from a height of 4 & ndash; 6 & nbsp; m, which rushes at a speed of 20 & ndash; 27 & nbsp; km/h and & nbsp; ride the & nbsp; current for & nbsp; 800 & nbsp; km. Therefore, it makes no sense to erect a heavy structure on the river, which at any time can change the channel, depth, wave height and even the direction of the current. & # 39; & # 39;