DN

DN LLC (formerly DN Tanks) is a designer and constructor of prestressed concrete liquid storage tanks, founded in 1929 with nearly a century of experience in the water and wastewater infrastructure market. The company provides a full scope of services spanning preconstruction design engineering through construction of prestressed concrete tanks for water storage, wastewater storage, thermal energy storage, and concrete tank rehabilitation, retrofit, and inspection. DN's tanks are classified as Type I and Type III configurations with flat slab roof designs featuring interior columns, and the company employs a collaborative design-build process that integrates preconstruction planning with field construction. Notable completed projects include a 2.6 MG water storage tank for Canton Township, MI; four 16.0 MG tanks at the Eastside Water Treatment Plant in Dallas, TX; 18.45 MG tanks at Baltimore's Back River WWTP; a 5.0 MG water storage tank rehabilitation in Lavon, TX; and a 3.0 MG Charter Oak Reservoir repair in Covina, CA. DN serves primarily municipal water and wastewater utilities across multiple states, emphasizing that its prestressed concrete tanks deliver the highest quality and lowest maintenance solution for long-term liquid storage. The company maintains office professional, construction, and co-op/internship teams, reflecting both engineering design and field construction capabilities.