The Kroombit Dam is a roller compacted concrete dam, built to replenish the groundwater supply to the Callide Irrigation area. The dam has a maximum height of 25m and used 275,000m³ of zoned earthfill and 100,000m³ of RCC and conventional concrete. SunWater is undertaking a dam spillway capacity upgrade program to ensure the highest level of safety for our dams is maintained. The spillway will be upgraded in the longer term.