Upper Diversion Dam #1, located in Idaho Falls, Idaho, is a gravity dam completed in 1982 with a primary purpose of hydroelectric power generation. This dam, situated on the Snake River, has a height of 23 feet and a length of 600 feet, providing a storage capacity of 1230 acre-feet. With a maximum discharge rate of 60,000 cubic feet per second, the dam serves as a vital component in the region's water resource management and flood control efforts.

Managed by the Federal Energy Regulatory Commission, Upper Diversion Dam #1 also offers recreational opportunities in addition to its hydroelectric function. The dam features a controlled spillway with a width of 430 feet, ensuring safe and efficient water flow during times of excess. Despite its low hazard potential, the dam is subject to regular inspections to ensure its structural integrity and operational reliability.

With a risk assessment ranking of very high, Upper Diversion Dam #1 underscores the critical importance of proactive risk management measures. As a key infrastructure asset in the region, the dam plays a crucial role in water resource sustainability and climate resilience efforts. Its strategic location and multifaceted functionalities make it a significant contributor to the overall water management framework in the area.