Index: Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Data/HeightStructuresFailureMechanism.cs
===================================================================
diff -u -red4b032b9903f394deb9691c2c39a9f2122ab0f5 -rfada97a57c5c19983ffe23b02944dc48d02c509c
--- Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Data/HeightStructuresFailureMechanism.cs	(.../HeightStructuresFailureMechanism.cs)	(revision ed4b032b9903f394deb9691c2c39a9f2122ab0f5)
+++ Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.Data/HeightStructuresFailureMechanism.cs	(.../HeightStructuresFailureMechanism.cs)	(revision fada97a57c5c19983ffe23b02944dc48d02c509c)
@@ -48,7 +48,6 @@
             sectionResults = new List<HeightStructuresFailureMechanismSectionResult>();
             CalculationsGroup = new CalculationGroup(RingtoetsCommonDataResources.FailureMechanism_Calculations_DisplayName, false);
             GeneralInput = new GeneralHeightStructuresInput();
-            HeightStructures = new ObservableList<HeightStructure>();
             HeightStructuresCollection = new StructureCollection<HeightStructure>();
             ForeshoreProfiles = new ForeshoreProfileCollection();
         }
@@ -67,11 +66,6 @@
         public GeneralHeightStructuresInput GeneralInput { get; private set; }
 
         /// <summary>
-        /// Gets the available height structure of this instance.
-        /// </summary>
-        public ObservableList<HeightStructure> HeightStructures { get; private set; }
-
-        /// <summary>
         /// Gets the available height structures of this instance.
         /// </summary>
         public StructureCollection<HeightStructure> HeightStructuresCollection { get; private set; }