Rijkswaterstaat, founded in 1798 as the Bureau voor den Waterstaat, is part of the Dutch Ministry of Infrastructure and the Environment, the former Ministry of Transport, Public Works and Water Management. Its role is the practical execution of the public works and water management, including the construction and maintenance of waterways and roads, and flood protection and prevention. The agency was also involved in the construction of big railway projects such as the Betuweroute and the HSL-Zuid.