The Serpentine Pipehead Dam is an earth-filled embankment and concrete gravity dam across the Serpentine River, in Western Australia. Established in 1957, the dam is connected with the Serpentine Dam and together they supplement the supply of potable water for Water Corporation to provide to greater metropolitan .
The dam is high and long. The resultant reservoir draws from a catchment area.
The dam is also used to store water from the Dandalup scheme whereby water can be pumped or gravity transferred back into the Serpentine Pipehead Dam. The dam site also contains a water treatment plant and picnic area. The pipehead dam is upstream from Serpentine Falls and was constructed using of concrete and of earth.