Construction of the dam commenced in 1969 and was completed in 1973. The rock and earthfill dam structure is high and long. The dam wall holds back the reservoir when at full capacity. The dam has a clearance of above full supply level for flood mitigation purposes. This allows for a full operating level at . From a catchment area of that lies within the Scenic Rim at the foot of the McPherson Range, the dam creates an unnamed reservoir, with a surface area of . The uncontrolled un-gated spillway has a discharge capacity of , and is situated above the original stream bed. Initially managed by the SunWater, management of the dam was transferred to Seqwater in July 2008.