2019 Nepean Tunnel Culvert Diversion Contextual History Nepean Tunnel inlet c.1885. [Dictionary of Sydney By Courtesy of Charles Blomfield, Wagga Wagga] Aboriginal History & CultureGovernmentalIndustrialColonialSydney SurroundsResearchHistory Authors: Liz Gorman and Dr Sue Rosen Client: Unearthed Archaeology & Heritage for Sydney Water This historic context report covered the period from the D'harrawal's sole occupancy to contemporary times, including the industrial heritage of the site. It was to inform an assessment of the impact of the works on the heritage qualities of the area.