Dutch Flat Forebay, also known as Dutch Flat No. 2 Forebay, is a key water resource facility located in Dutch Flat Afterbay, California. Built in 1966 by Ebasco Services, Inc., this public utility structure serves multiple purposes, including irrigation, hydroelectric power, and water supply. Situated along the Dutch Flat Canal and owned by the Federal Energy Regulatory Commission, Dutch Flat Forebay plays a crucial role in managing water resources in the region.

With a dam height of 77 feet and a structural height of 105 feet, Dutch Flat Forebay has a storage capacity of 184 acre-feet and a surface area of 8 acres. The spillway, with a width of 250 feet, ensures controlled water discharge during peak flow periods. The facility has a low hazard potential and is regulated and inspected by various state and federal agencies, including the California Department of Water Resources and the Federal Energy Regulatory Commission.

Despite its moderate risk assessment, Dutch Flat Forebay meets safety guidelines and has emergency action plans in place. The facility's last inspection in September 2019 confirmed its sound condition. As a vital component of the water infrastructure in Nevada County, Dutch Flat Forebay continues to contribute to the sustainability of water resources and climate resilience in the region.