Mulgoa Quarries, engaged AWMA to design an isolating penstock for a new detention basin.
Development discussions led to a custom-designed outlet structure and undershot ULF penstock. By customising the gate and outlet characteristics, significant savings were gained in civil works.
The detention basin has a 1m high weir wall which isolates storm water downstream of the site.
Located on the weir wall, the undershot penstock is manufactured from grade 316 stainless steel and operates via an electric actuator, allowing controlled releases from the detention basin.