Rock Island Arsenal, Building No. 160, Sylvan Drive, Rock Island, Rock Island County, IL

Significance: Replacing a waterpower telodynamic system on the same site, the hydroelectric Powerhouse was completed in 1901 to meet the increased power demands of a small arms plant established at the arsenal at the turn of the century. The building was expanded in 1903, and again in 1919. It is still in service, using machinery installed in 1919. Part of the Rock Island Arsenal National Register Historic District, the Powerhouse has long played a key role in the arsenal's manufacturing program.
Survey number: HAER IL-20-CC
Building/structure dates: 1901 Initial Construction
Building/structure dates: 1903 Subsequent Work
Building/structure dates: 1919 Subsequent Work
National Register of Historic Places NRIS Number: 69000057