town and shire in southern Victoria, Australia, situated on the Werribee River about 19 mi (29 km) southwest by rail from Melbourne and nearly 5 mi from the coast of Port Phillip Bay. Three major government facilities are located at Werribee: The Melbourne and Metropolitan Board of Works Farm (a sewage farm that experiments with water waste purification methods), the State (agricultural) Research Farm, and the Werribee Hydraulic Experimental Station. Situated in a dairying, grazing, and gardening district, Werribee also has one of the world's largest poultry farms and the University of Melbourne Veterinary Clinic Center. Near the town is a park, a scenic gorge, and the Werribee Open Range Zoo. Werribee Park is a splendid Italianate-style mansion erected by Thomas Chirnside in 1874–77. The Point Cook air force base and aviation museum are nearby. Werribee now constitutes one of the suburbs embraced by the Wyndham local government area. Pop. (2001) Werribee state suburb, 33, 068; Wyndham local government area, 85,176.