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Projects in category guide rail: Select status All Finished Ongoing Alphabetical  By year Maintenance of national trunk roads Zuid-Holland Ballast Nedam Infra Specialiteiten B.V. The Zuid-Holland’s Foreland is part of Rijkswaterstaat [Directorate General for Public Works and Water Management] Zuid Holland. The total number of kilometres of roads in this district comes to... Show project Modify guide rail on A15 and A27 Ballast Nedam Infra Specialiteiten B.V. Ballast Nedam Infra Specialiteiten replaced the existing guide rail on the A15 at the Gorinchem interchange and on the A27 between the Gorinchem interchange and Lexmond. Show project Replacing step barrier on the Oosterschelde storm the "Roompot" Ballast Nedam Infra Specialiteiten B.V. Ballast Nedam Infra Specialiteiten replaced the existing guide rail on the Oosterschelde storm surge barrier with a concrete step barrier. The reason for this replacement was the poor condition of the... Show project 1