This had a profound impact. The amount of steel needed to build suspension bridges could be hundreds of tons less than required by previous design practice. Less steel greatly reduced the cost of a bridge. By the late 1920s and into the 1930s great long-span suspension bridges were being built across the country.
Waltham, Massachusetts. Waltham (/ËwÉËlËÎ¸Ã¦m/) is a city in Middlesex County, Massachusetts, United States, and was an early center for the labor movement as well as a major contributor to the American Industrial Revolution.
Old Suffolk County Courthouse 1810-1841. The county was created by the Massachusetts General Court on May 10, 1643, when it was ordered that the whole plantation within this jurisdiction be divided into four shires . Suffolk initially contained Boston, Roxbury, Dorchester, Dedham, Braintree, Weymouth, and Hingham. The county was named after Suffolk, England, which means southern folk.. In 1731, the extreme western portions of Suffolk County, which included Uxbridge, were split off to become part of Worcester County.