SS President Coolidge Newport News, Virginia built the two ships, completing "President Hoover" in 1930. The keel for "President Coolidge" was laid 22 April 1930 and the ship was delivered 1 October 1931. They were the largest merchant ships built in the United States up to that time. Each ship had turbo-electric transmission, with a pair of steam turbo generators generating current that powered propulsion motors on the propeller shafts. Westinghouse built the turbo generators and propulsion motors for "President Coolidge" but General Electric built the turbo generators and propulsion motors for "President Hoover". In the "President Coolidge" twelve Babcock & Wilcox superheater
Calvin Coolidge Bridge Calvin Coolidge Bridge The Calvin Coolidge Memorial Bridge is a major crossing of the Connecticut River in western Massachusetts, connecting the towns of Northampton and Hadley. The bridge carries Route 9 across the river, where it connects to Interstate 91. The bridge is a major bottleneck in Hampshire County—the only major hospital in the county, Cooley-Dickinson, is located in Northampton on the western side of the bridge. The road approaching the bridge is known as Bridge St. in Northampton (eastbound) and Russell St. in Hadley (westbound). The Calvin Coolidge Memorial Bridge is a five-span, single intersection Warren deck truss bridge