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
Water resources management in modern Egypt Nile sediments. Furthermore, agricultural land losses will occur as a result of soil salinization. The extent of vulnerability of the Nile delta to increases in sea level varies. One study estimates that 30% of the Delta and Alexandria coast is vulnerable, 55% is "invulnerable" and 15% was artificially protected in 2003. High-risk areas in and near the Delta include parts of Alexandria, Behaira, Damietta and Port Said governorates. According to Omran Frihy, a retired coastal researcher, authorities are spending US$300 million to build concrete sea walls to protect the beaches of Alexandria. Sand is being dumped in some areas to