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The bridge and torch problem (also known as The Midnight Train [1] and Dangerous crossing [2]) is a logic puzzle that deals with four people, a bridge and a torch. It is in the category of river crossing puzzles , where a number of objects must move across a river, with some constraints.
By way of specifying the logical task unambiguously, solutions involving either reaching an island or mainland bank other than via one of the bridges, or; accessing any bridge without crossing to its other end; are explicitly unacceptable. Euler proved that the problem has no solution.
Mahatma Gandhi Setu (also called Gandhi Setu or Ganga Setu) is a bridge over the river Ganga in Bihar, India, connecting Patna in the south to Hajipur in the north. [3] Its length of 5,750 metres (18,860 ft) makes it the fourth-longest river bridge in India.
Two trucks were crossing the bridge when one struck a tie rod causing the bridge to collapse. One truck fell 15 feet to the creek bed, and the other escaped to safety. 4 killed, 5 injured [28] Kasai River Bridge Kasaï: Belgian Congo 12 September 1937: Railway bridge While under construction. Began in 1935; construction never resumed.
Construction began the week of January 12, 2009, and the interchange opened on June 21, 2009. [12] [13] This interchange was a conversion of an existing standard diamond interchange, and used the existing bridge. [14] MoDot reports that traffic congestion for left turns at the intersection cleared up immediately, and crashes dropped by 40–50% ...
After Hurricane Katrina on August 29, 2005, videos collected showed damage to the bridge. The storm surge was not as high under the causeway as it was near the I-10 Twin Span Bridge, and damage was mostly limited to the turnarounds. [12] A total of 17 spans were lost on that bridge but [12] the structural foundations remained intact. The ...
[1] [2] The bridge spans the Chenab River at a height of 359 m (1,178 ft) above the river, making it the world's highest rail bridge and the world's highest arch bridge. [3] [4] The bridge was fully completed and was inaugurated in August 2022. [5] It is built between the Sangaldan Railway Station and the Reasi Railway Station. [citation needed]
An extradosed bridge employs a structure that combines the main elements of both a prestressed box girder bridge and a cable-stayed bridge. [1] [2]: 85 [3] The name comes from the word extrados, the exterior or upper curve of an arch, and refers to how the "stay cables" on an extradosed bridge are not considered as such in the design, but are instead treated as external prestressing tendons ...