Complex sentence: Supreme Court challenges in 1999 and 2005 led to temporary production stoppages but ultimately failed to stop construction of the seawall, which was opened in April 2006 and is 500 metres longer than the Afsluitdijk in Zuiderzee, the Netherlands, previously the longest dyke in the world.
Split into simpler sentences: Supreme Court challenges in 1999 and 2005 led to temporary production stoppages but ultimately failed to stop construction of the seawall. The seawall is 500 metres longer than the Afsluitdijk in Zuiderzee, the Netherlands, previously the longest dyke in the world.