Housing for the workers and their families was provided in temporary demountable dwellings within the village. At this time and also during the 1935 dam build, utilitarian construction prevailed, giving Wyangala no dwellings of historical note. The ten-year, A£18 million enlargement project increased the storage capacity of the dam threefold. The total surface area of the upgraded reservoir was , storing (two and a half times the volume of Sydney Harbour), within a catchment of . The opening ceremony for the upgraded dam was scheduled to be performed by Sir Roden Cutler, Governor of NSW on 8 February 1971. However, because of heavy rains and road flooding three days prior to the event, the opening was delayed until 6 August 1971. Over 2000 guests and officials attended the ceremony. In the months and years following the dam opening, the population of Wyangala decreased significantly; houses used by workers on the north-west and north-east sides of the village were removed, leaving only the houses seen in the present day village, just below the dam wall. Post office, school and church By March 1929, with dam construction underway (see above), up to 60 letters arrived in the village every day or two, whenever a vehicle made the trip from Cowra to Wyangala. With over 350 workers and their families already in the growing village, the lack of a post office or telegraph office was a great inconvenience to the residents. To alleviate this issue, and to provide the residents with a reliable postal service, Wyangala Dam Post Office was opened on 14 March 1929. The newly opened post office stamped mail with a Type 2C postmark, which had a full stop after the ‘W’ of ‘N.S.W.’. Throughout the subsequent years, the village post office became an integral part of the Wyangala community, providing the expected postal and, at times, banking services (as an agent for the Commonwealth Bank of Australia). In the post-telegraph era, a manual telephone exchange was also located within the post office. The postmaster/mistress would run the telephone exchange in conjunction with running the post office. The telephone exchange was automated in the late 1980s and the post office itself was closed in 1998. Postmasters/mistresses from the 1970s until closure, included: Ken and Peggy Bloomfield (1970s) Rosa and Graham Parr (1970s to early 1980s) Geoff and Vicki Scott (early to mid 1980s) Jim and Yvonne Thomas (mid 1980s to