The Massena Canal Power Dam Remediation Project includes the final decommissioning and resurfacing of the former Alcoa Powerhouse, a 577-foot-long structure located at the intersection of the Massena Canal and the Grasse River in Massena. The work will involve the removal of steel structures and the partial demolition of the concrete structure. Any remaining structures will be stabilized and covered with topsoil and grass to form an earthen dam