Civil engineering and infrastructure repair in New Orleans after Hurricane Katrina evaluation, design and construction management of levees and floodwalls, special closure structures for protection of the communities adjacent to the Inner Harbor Navigation Canal, major pumping facilities and planning studies for improved levels of flood protection for New Orleans and southern Louisiana.<ref name="Arcadis/Bioengineering Group contract">Infrasite.net @ web.archive.org "</ref> The Delta Works are a series of constructions built between 1953 and 1997 in the southwest of the Netherlands to protect a large area of land around the Rhine-Meuse-Scheldt delta from the sea. The works consist of dams, sluices, locks, levees, and storm surge barriers. The works were initiated after the North
European land exploration of Australia discovered—the Darling, Macquarie, Murray and Murrumbidgee rivers—all of which flowed west, a theory was developed of a vast inland sea into which these rivers flowed. Another reason behind the idea of an inland sea was that Matthew Flinders, who had very carefully mapped much of Australia's coast had discovered no great river delta where these rivers should have emerged by had they reached the coast. The Murray-Darling basin actually drains into Lake Alexandrina. Matthew Flinders had noted this on his maps but viewed from the sea does not look like the outfall of a large watershed, but instead as a