Wachusett Dam & Reservoir The Masonry Aqueduct Sections 4, 5, 6, 7, 9 & 10 Aqueduct terminal chamber in Marlborough Sections 4, 5, 6, 7, 9 & 11 Arched masonry aqueduct. The second contract of the Wachusett Aqueduct was awarded in six different sections to Silvio Casparis & Co. of Columbus, Ohio. This section… Continue reading Wachusett Aqueduct – Masonry Aqueduct