Calispell Diversion Canal, 1.2 miles southeast of I-20 & Flowery Trail, Usk, Pend Oreille County, WA

Significance: The building of the Calispell Diversion Canal was one of the largest and most widely publicized New Deal projects undertaken in northeast Washington during the Great Depression. Much of the construction work was done by hand labor and with horse and mule teams, and the facility was designed to be entirely manually operated. The project was abandoned when nearing completion in the mid-1930s and, consequently, the canal has remained virtually intact and unaltered ever since. Its many features clearly delineate the intended functions of the various parts of the reclamation scheme and, as such, reveal much about the engineering technology of the 1930s and preceding decades. The canal was determined eligible for the National Register of Historic Places in 1985.
Unprocessed Field note material exists for this structure: FN-12
Survey number: HAER WA-16
Building/structure dates: 1933-1936 Initial Construction