Index: Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Data/HeightStructuresInput.cs
===================================================================
diff -u -ra8ffe20fbe684f5020f5158354b33fad488baac9 -r547267b70fbf09e80c59b252b4660300cc370c74
--- Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Data/HeightStructuresInput.cs	(.../HeightStructuresInput.cs)	(revision a8ffe20fbe684f5020f5158354b33fad488baac9)
+++ Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Data/HeightStructuresInput.cs	(.../HeightStructuresInput.cs)	(revision 547267b70fbf09e80c59b252b4660300cc370c74)
@@ -185,6 +185,10 @@
         /// <summary>
         /// Gets or sets the orientation of the normal of the structure.
         /// </summary>
+        /// <remarks><list type="bullet">
+        /// <item>When the value is smaller than 0, it will be set to 0.</item>
+        /// <item>When the value is larger than 360, it will be set to 360.</item>
+        /// </list></remarks>
         public RoundedDouble OrientationOfTheNormalOfTheStructure
         {
             get
@@ -193,10 +197,30 @@
             }
             set
             {
-                orientationOfTheNormalOfTheStructure = value.ToPrecision(orientationOfTheNormalOfTheStructure.NumberOfDecimalPlaces);
+                RoundedDouble newOrientationValue = value.ToPrecision(orientationOfTheNormalOfTheStructure.NumberOfDecimalPlaces);
+                newOrientationValue = ValidateStructureNormalOrientationInRange(newOrientationValue);
+
+                orientationOfTheNormalOfTheStructure = newOrientationValue;
             }
         }
 
+        private RoundedDouble ValidateStructureNormalOrientationInRange(RoundedDouble newOrientationValue)
+        {
+            const double upperBoundaryRange = 360;
+            const double lowerBoundaryRange = 0.0;
+
+            if (newOrientationValue > upperBoundaryRange)
+            {
+                newOrientationValue = new RoundedDouble(2, upperBoundaryRange);
+            }
+            else if (newOrientationValue < lowerBoundaryRange)
+            {
+                newOrientationValue = new RoundedDouble(2, lowerBoundaryRange);
+            }
+
+            return newOrientationValue;
+        }
+
         /// <summary>
         /// Gets or sets the allowable increase of level for the storage.
         /// </summary>