The Lincoln Bathhouse was established in 1915 after conversion from the abandoned Natural Carbonic Gas Company Plant. Although it accommodated large numbers of patrons, it could not keep up with demand, leading to construction of the Washington Bathhouse. By 1920 both bathhouses were in operation and handling 2,500 treatments daily. After the Lincoln Bathhouse burned in 1928, a new and larger facility was constructed and opened in 1930 with capacity for 4,500 treatments a day. The New Spa flourished by offering the most up-to-date therapy techniques in an idyllic resort atmosphere, and the Lincoln Bathhouse still offers mineral baths today.