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原文传递 Final Truss Is Major Milestone For Top St. Louis Bridge Project

题名：	Final Truss Is Major Milestone For Top St. Louis Bridge Project
正文语种：	eng
作者：	DAVID MURRAY
摘要：	A group of 175 people took a ride on the riverboat Becky Thatcher from the St. Louis riverfront August 26 to see the third and final truss being floated into place before it was placed onto the Merchants Bridge, a railroad bridge that crosses the Mississippi River north of downtown St. Louis, Mo. The group consisted of invited guests of St. Louis Freightway, a regional freight district and authority for freight operations within eight counties in southwestern Illinois and eastern Missouri, along with members of the public. The $222 million project to replace the old Merchants Bridge has been the St. Louis Regional Freight-way's top priority since 2016. Dating back to the 1890s, the original Merchants Bridge was designed by George Morison, an important figure in the history of engineering who designed some of the first large-scale metal truss bridges in the country. Many 19th century railroad bridges over the Mississippi and Missouri rivers were designed by Morison. The Merchants Bridge's original trusses were among the very few in America with spans of more than 500 feet.
出版年：	2022
期刊名称：	The Waterways Jouranl
卷：	136
期：	23
页码：	5-5