Category:Bonneville Power Administration Chehalis Substation, Untanking Tower

English: "Completed in 1941, The Bonneville Power Administration (BPA) Chehalis Substation untanking tower is an industrial building designed for specialized functions relating to substation maintenance within the BPA's Master Grid system. Completion of the Master Grid initiated the marketing and transmission of electrical power from Bonneville and Grand Coulee dams on the Columbia River, the first Federal hydroelectric facilities on that river. Construction of those dams and completion of the BPA's Master Grid network (1939-1945) represented Federal economic recovery programs instituted by President Franklin D. Roosevelt. Those programs played a prominent role in defense-related industries during World War II (1941-1945) and initiated the widespread and diversified use of electricity at nominal costs in the Northwest Pacific Coast states of Washington and Oregon. The original Master Grid has since been expanded to include eight states in the western region of the United States. The poured concrete untanking tower is an outstanding example of the Starved Classical style of industrial architecture commonly used in construction of BPA substation structures during the decade of the 1940s. The historic structure was determined eligible for inclusion in the National Register of Historic Places in 1987." [1]