In 1933, the
Bureau of Reclamation decided to build the
Rye Patch Dam to impound the Humboldt and create the reservoir. The dam was built between 1935 and 1936 to the west of Rye Patch station. A
New Deal project intended to help fight the
Great Depression, the dam was funded by the
Public Works Administration and employed workers from the
Civilian Conservation Corps. The dam was expanded in 1975–1976, raising the dam to provide the reservoir with more storage capacity. Rye Patch Reservoir also includes the
Pitt–Taylor Reservoirs, two off-stream storage basins that predate Rye Patch. They were built in 1913 by Humboldt–Lovelock Irrigation, Light and Power Company, a private venture run by William C. Pitt, an upper Lovelock Valley rancher, and John G. Taylor, an upper valley farmer and sheep rancher. These reservoirs are less efficient than Rye Patch, losing much water to evaporation, so they are used only for additional capacity in high-flow years. The reservoir has come under criticism, particularly from upstream users who accuse Lovelock farmers of attempting to monopolize the waters of the Humboldt for their own use. For instance, when the reservoir was nearly drained in 1992 to provide water to the farms, anglers at the
Rye Patch State Recreation Area complained of a massive fish kill. Furthermore, a study by the
Nevada State Museum in 1987 concluded that construction of the Rye Patch and Pitt–Taylor Reservoirs flooded archaeological and paleontological sites that showed evidence of prehistoric human habitation. ==Climate==