Index: Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Data/ClosingStructuresInput.cs
===================================================================
diff -u -rc3294111adba59fbf4a19757d1b945ec7045a19f -r547267b70fbf09e80c59b252b4660300cc370c74
--- Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Data/ClosingStructuresInput.cs	(.../ClosingStructuresInput.cs)	(revision c3294111adba59fbf4a19757d1b945ec7045a19f)
+++ Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Data/ClosingStructuresInput.cs	(.../ClosingStructuresInput.cs)	(revision 547267b70fbf09e80c59b252b4660300cc370c74)
@@ -159,33 +159,62 @@
 
         #region Deterministic inputs
 
+        #region Structure Normal orientation
+
         /// <summary>
-        /// Gets or sets the storm duration for an open structure.
+        /// Gets or sets the orientation of the normal of the structure.
         /// </summary>
-        public RoundedDouble FactorStormDurationOpenStructure
+        /// <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 StructureNormalOrientation
         {
             get
             {
-                return factorStormDurationOpenStructure;
+                return structureNormalOrientation;
             }
             set
             {
-                factorStormDurationOpenStructure = value.ToPrecision(factorStormDurationOpenStructure.NumberOfDecimalPlaces);
+
+                RoundedDouble newOrientationValue = value.ToPrecision(structureNormalOrientation.NumberOfDecimalPlaces);
+                newOrientationValue = ValidateStructureNormalOrientationInRange(newOrientationValue);
+
+                structureNormalOrientation = 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;
+        }
+
+        #endregion
+
         /// <summary>
-        /// Gets or sets the orientation of the normal of the structure.
+        /// Gets or sets the storm duration for an open structure.
         /// </summary>
-        public RoundedDouble StructureNormalOrientation
+        public RoundedDouble FactorStormDurationOpenStructure
         {
             get
             {
-                return structureNormalOrientation;
+                return factorStormDurationOpenStructure;
             }
             set
             {
-                structureNormalOrientation = value.ToPrecision(structureNormalOrientation.NumberOfDecimalPlaces);
+                factorStormDurationOpenStructure = value.ToPrecision(factorStormDurationOpenStructure.NumberOfDecimalPlaces);
             }
         }