Title
Plans and Drawings of Bridges, Structures, and Machines
Sub-series contains architectural drawings and plans of various bridges built over the north and south canals, and the Merrimack, Spicket rivers. Also included are drawings of Fences along the canals, instruments used in canal maintenance, a hand pile driver, and a scow. The bridges for which drawings are present include the Central Bridge, Duck Bridge, Andover Falls Bridge, and numerous canal crossings for various mills and railroads. The materials range in date from 1854 to 1942.
Collection
Essex Company Collection
Materials are oversized, ranging from approximately 11x17 to 30x40