a walking trail across the dam wall, and a picnic area including a carpark. Woronora Dam Road leads from the Princes Highway for seven kilometres to the dam. Popular culture The building of the Woronora Dam became part of the backdrop of the comedy drama Dad Rudd MP. The film featured several construction scenes and employed many workers and their families as 'extras'. Heritage listing As at 10 September 2009, the Woronora Dam, constructed between 1927 and 1941, was the fifth and last of the water supply dams constructed prior to the Second World War to provide a secure water supply to satisfy the demands of industrial, commercial and residential development of metropolitan Sydney up to . The Woronora Dam was specifically built to service metropolitan areas south of the Georges River. The foundation and wall drainage systems, and the Stripped Classical architectural expression of the crest and valve houses, collectively continue to be integral elements of an Inter-war (s) era high, curved, gravity dam in New South Wales. The scale of the use of mass concrete in the upper portions of the dam wall is unique in New South Wales for the period. The design of the spillway incorporating the zig zag weir wall and diversion channels are likely to represent an early and notable technological advancement in the design of such structures. The Woronora Dam is part of a group (in conjunction with the Metropolitan Dams) of like structures which are the State's largest and most intact ensemble of large dams completed prior to the Snowy Mountains Hydro-Electricity Scheme within a well defined geographical area. The Dam contains in-situ items of Inter-war era water delivery technologies developed by the Water Board, such as lengths of iron discharge pipes, emergency roller gate, stopboards and penstocks which in consideration of their scale and integrity are rare examples of their types. The welded mild steel delivery pipeline (of which only a small section is included in the heritage curtilage) similarly represents a notable advance in construction technology for the period. The site of the Woronora Dam contains remnants of the construction platforms, roadways blasted out of the hillside for plant and machinery, and the sites of the township specifically established for the construction of the Dam that collectively continue to evoke the era of the dam's construction, which in consideration of the scale and permanent nature of the works represent a