Delta Works was completed by the Europoortkering which required the construction of the Maeslantkering in the Nieuwe Waterweg between Maassluis and Hoek van Holland and the Hartelkering in the Hartel Canal near Spijkenisse. The works were declared finished after almost forty years in 1997. In reality the works were finished on 24 August 2010 with the official opening of the last strengthened and raised retaining wall near the city of Harlingen, Netherlands. Due to climate change and relative sea-level rise, the dikes will eventually have to be made higher and wider. This is a long term uphill battle against the sea. The
Voyage to the Bottom of the Sea series encouraged Irwin Allen to produce other science fiction television shows. The most notable of these shows were "Lost in Space", "The Time Tunnel", and "Land of the Giants". The success of the feature film led to the 1964–1968 television series on ABC, "Voyage to the Bottom of the Sea". During the series run, the film's storyline was remade as a one-hour episode. That episode was written by Willam Welch and was titled "The Sky's on Fire". Other scenes in the film were also rewritten and incorporated into the television series. In June 1961, Pyramid Books published a novelization of