Date: 1848
The first shop is covered with a neat and light roof, built of an arched "Howe truss," forming asegmeut osa circle, 784 i"ee^ span by 16 feet rise.  At Richmond, the lower terminus of the Road, at tide water on the river Delaware, are constructed the most extensive and commo- The Engines vary from 3 to 224 'ons weight ; two very powerful engines, of 27 tons weight each, are used exclusively on the Falls grade, before mentioned.  The iron cars weigh 24-10 tons empty, and carry five tons of coal.