Upper Diversion Dam #2 is a gravity dam located on the Snake River in Idaho Falls, Idaho, completed in 1982 for hydroelectric and recreational purposes. Owned by the local government, this dam stands at a height of 33 feet and has a length of 470 feet, with a storage capacity of 1230 acre-feet. With a low hazard potential and a controlled spillway, the dam's maximum discharge capacity is 15,000 cubic feet per second.

Managed by the Federal Energy Regulatory Commission, Upper Diversion Dam #2 is inspected every three years, with the last inspection conducted in September 2017. Despite its low hazard potential, the dam is categorized as having a very high risk due to its age and location. Emergency action plans are in place, although specific details on preparedness and risk management measures are not readily available. Overall, this dam serves as a vital resource for water diversion and energy production in the region, contributing to both economic development and environmental conservation efforts.