Technical challenges - Technical challenges Satellite image...

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Technical challenges Satellite image of Bering Strait. Cape Dezhnev , Russia is on the left, the two Diomede Islands are in the middle, and Cape Prince of Wales , Alaska is on the right. The depth of the water offers little challenge, as the strait is no deeper than 180 ft (55 m). [15] The tides and currents in the area are not severe. [13] However, the route would lie just south of the Arctic Circle , subject to long dark winters and extreme weather (average winter lows −20 °C (−4 °F) with possible lows approaching −50 °C (−58 °F)), and so building activity will likely be restricted to five months of the year. [15] The weather also poses challenges to exposed steel. [15] In Lin's design, concrete covers all structures, to simplify maintenance and to offer additional stiffening. [15] Also, while there are no icebergs in the Bering strait, ice floes up to 6 ft (2 m) thick are in constant motion during certain seasons, which could produce forces in the order of 5,000 short tons-force (44,000 kN; 10,000,000 lbf) on a pier.
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