China Hat is a vital water resource infrastructure located in Caribou, Idaho, primarily serving the purpose of irrigation. Constructed in 1925, this earth dam stands at a height of 23.5 feet and has a storage capacity of 125,000 acre-feet. With a surface area of 18,000 acres and a drainage area of 581 square miles, China Hat plays a crucial role in managing water resources in the region. The dam is regulated by the Idaho Department of Water Resources and undergoes regular inspections to ensure its fair condition and low hazard potential.

Situated along the Blackfoot River and Snake River, China Hat contributes to the agricultural productivity of the area by providing water for irrigation purposes. It is owned by a public utility and falls under state jurisdiction, with the Idaho Department of Water Resources overseeing its permitting, inspection, and enforcement processes. The dam's moderate risk assessment underscores the importance of proper risk management measures to safeguard the surrounding communities and environment. Despite its age, China Hat continues to play a significant role in water management and climate resilience efforts in Idaho.