Crews Complete Plinth on Main Dam

One of the biggest milestones to date at Chimney Hollow Reservoir took place this winter, as the final pour of about 10,800 cubic yards of concrete was placed on the 3,700-foot-long plinth that runs along the center line of the main dam. The plinth will tie together the above-ground elements of the dam to the subsurface portions, providing a watertight connection between the dam’s 350-foot-tall asphalt core and the grout curtain that runs as deep as 235 feet below the foundation. In this new 3-minute video, project managers with Northern Water and Barnard Construction discuss the importance of the plinth and the significance of recently completing it.