Hefner Dam, located in Oklahoma City, Oklahoma, is a vital infrastructure managed by the local government for water supply purposes. Built in 1943 by designer V.V. Long, this Earth-type dam stands at a height of 112 feet and has a storage capacity of 107,400 acre-feet, with a normal storage capacity of 74,400 acre-feet. The dam spans 26,400 feet and is situated on Bluff Creek, within the Tulsa District.

With a high hazard potential and a very high risk assessment rating, Hefner Dam is closely regulated by the Oklahoma Water Resources Board (OWRB), with state inspection, enforcement, and permitting in place. The dam's spillway is of the controlled type, with seven slide (sluice gate) outlet gates for water release. Despite its high risk potential, the dam's condition assessment as of October 2021 was rated as satisfactory, indicating its current operational safety.

In the event of an emergency, the dam is equipped with Emergency Action Plans (EAP) and has designated emergency contacts. While the dam's risk management measures are not specified in the data, ongoing inspections and maintenance ensure the safety and reliability of Hefner Dam for water supply and flood control in the region.