Wachusett Dam & Reservoir The Hard Rock Tunnel Sections 2 & 3 https://vimeo.com/837240397 Brick reinforced tunnel section Section 2 & 3 Hard rock tunnel The first of the contracts for the construction of the two mile long hard rock tunnel was awarded on February 14, 1896 to E.D Smith & Co. with a completion… Continue reading Wachusett Aqueduct – Rock Tunnel