Nietiedt Oberflächentechnik Hamburg is one of the leading specialists in heavy corrosion protection in Germany. In addition to the marine corrosion protection of ships of all types and sizes, they are also specialized in industrial preservation of steel surfaces, such as tankers, refineries, bridges and structures in steel and hydraulic engineering. Lately Nietiedt Oberflächentechnik Hamburg was awarded the refurbishment project of Eider Barrage, located in the mouth of the river Eider near Tönning on Germany’s North Sea coast. Built in the early 70s Eider Barrage is known as the biggest coastal protection structure in Germany. Eider Barrage, exposed to high saline contamination of seawaters needed to be completely renewed and repaired.