Index: Riskeer/GrassCoverErosionInwards/test/Riskeer.GrassCoverErosionInwards.Forms.Test/UITypeEditors/GrassCoverErosionInwardsInputContextDikeProfileEditorTest.cs
===================================================================
diff -u -r1ba3eebbfe2ac3df531f67700f8f787302d8582c -r0f9e6989c163dd5b5f7a00faf6f1f1f706880394
--- Riskeer/GrassCoverErosionInwards/test/Riskeer.GrassCoverErosionInwards.Forms.Test/UITypeEditors/GrassCoverErosionInwardsInputContextDikeProfileEditorTest.cs	(.../GrassCoverErosionInwardsInputContextDikeProfileEditorTest.cs)	(revision 1ba3eebbfe2ac3df531f67700f8f787302d8582c)
+++ Riskeer/GrassCoverErosionInwards/test/Riskeer.GrassCoverErosionInwards.Forms.Test/UITypeEditors/GrassCoverErosionInwardsInputContextDikeProfileEditorTest.cs	(.../GrassCoverErosionInwardsInputContextDikeProfileEditorTest.cs)	(revision 0f9e6989c163dd5b5f7a00faf6f1f1f706880394)
@@ -56,8 +56,8 @@
             {
                 DikeProfileTestFactory.CreateDikeProfile()
             }, "path");
-            var grassCoverErosionInwardsInput = new GrassCoverErosionInwardsInput();
-            var grassCoverErosionInwardsCalculation = new GrassCoverErosionInwardsCalculation();
+            var grassCoverErosionInwardsInput = new GrassCoverErosionInwardsInput(double.NaN);
+            var grassCoverErosionInwardsCalculation = new GrassCoverErosionInwardsCalculation(double.NaN);
 
             var assessmentSection = mockRepository.Stub<IAssessmentSection>();
             var inputContext = new GrassCoverErosionInwardsInputContext(grassCoverErosionInwardsInput,
@@ -100,11 +100,11 @@
                 dikeProfile
             }, "path");
 
-            var grassCoverErosionInwardsInput = new GrassCoverErosionInwardsInput
+            var grassCoverErosionInwardsInput = new GrassCoverErosionInwardsInput(double.NaN)
             {
                 DikeProfile = dikeProfile
             };
-            var grassCoverErosionInwardsCalculation = new GrassCoverErosionInwardsCalculation();
+            var grassCoverErosionInwardsCalculation = new GrassCoverErosionInwardsCalculation(double.NaN);
 
             var assessmentSection = mockRepository.Stub<IAssessmentSection>();
             var inputContext = new GrassCoverErosionInwardsInputContext(grassCoverErosionInwardsInput,
Index: Riskeer/GrassCoverErosionInwards/test/Riskeer.GrassCoverErosionInwards.Forms.Test/Views/DikeHeightOutputGeneralResultFaultTreeIllustrationPointViewTest.cs
===================================================================
diff -u -ra4e3b2745a48598260107bb5bfca7485205cdcc2 -r0f9e6989c163dd5b5f7a00faf6f1f1f706880394
--- Riskeer/GrassCoverErosionInwards/test/Riskeer.GrassCoverErosionInwards.Forms.Test/Views/DikeHeightOutputGeneralResultFaultTreeIllustrationPointViewTest.cs	(.../DikeHeightOutputGeneralResultFaultTreeIllustrationPointViewTest.cs)	(revision a4e3b2745a48598260107bb5bfca7485205cdcc2)
+++ Riskeer/GrassCoverErosionInwards/test/Riskeer.GrassCoverErosionInwards.Forms.Test/Views/DikeHeightOutputGeneralResultFaultTreeIllustrationPointViewTest.cs	(.../DikeHeightOutputGeneralResultFaultTreeIllustrationPointViewTest.cs)	(revision 0f9e6989c163dd5b5f7a00faf6f1f1f706880394)
@@ -37,7 +37,7 @@
         {
             // Call
             var view = new DikeHeightOutputGeneralResultFaultTreeIllustrationPointView(
-                new GrassCoverErosionInwardsCalculation(),
+                new GrassCoverErosionInwardsCalculation(double.NaN),
                 () => new TestGeneralResultFaultTreeIllustrationPoint());
 
             // Assert
Index: Riskeer/GrassCoverErosionInwards/test/Riskeer.GrassCoverErosionInwards.Forms.Test/Views/GrassCoverErosionInwardsCalculationRowTest.cs
===================================================================
diff -u -ra4e3b2745a48598260107bb5bfca7485205cdcc2 -r0f9e6989c163dd5b5f7a00faf6f1f1f706880394
--- Riskeer/GrassCoverErosionInwards/test/Riskeer.GrassCoverErosionInwards.Forms.Test/Views/GrassCoverErosionInwardsCalculationRowTest.cs	(.../GrassCoverErosionInwardsCalculationRowTest.cs)	(revision a4e3b2745a48598260107bb5bfca7485205cdcc2)
+++ Riskeer/GrassCoverErosionInwards/test/Riskeer.GrassCoverErosionInwards.Forms.Test/Views/GrassCoverErosionInwardsCalculationRowTest.cs	(.../GrassCoverErosionInwardsCalculationRowTest.cs)	(revision 0f9e6989c163dd5b5f7a00faf6f1f1f706880394)
@@ -58,7 +58,7 @@
             var handler = mocks.Stub<IObservablePropertyChangeHandler>();
             mocks.ReplayAll();
 
-            var calculationScenario = new GrassCoverErosionInwardsCalculationScenario();
+            var calculationScenario = new GrassCoverErosionInwardsCalculationScenario(double.NaN);
 
             // Call
             var row = new GrassCoverErosionInwardsCalculationRow(calculationScenario, handler);
@@ -87,7 +87,7 @@
             var selectableHydraulicBoundaryLocation = new SelectableHydraulicBoundaryLocation(newLocation, new Point2D(0, 0));
             var newValue = new DataGridViewComboBoxItemWrapper<SelectableHydraulicBoundaryLocation>(selectableHydraulicBoundaryLocation);
 
-            var calculation = new GrassCoverErosionInwardsCalculationScenario();
+            var calculation = new GrassCoverErosionInwardsCalculationScenario(double.NaN);
 
             // Call & Assert
             SetPropertyAndVerifyNotificationsAndOutputForCalculation(row => row.SelectableHydraulicBoundaryLocation = newValue, calculation);
@@ -100,7 +100,7 @@
             DikeProfile newProfile = DikeProfileTestFactory.CreateDikeProfile(new Point2D(0.0, 0.0));
             var newValue = new DataGridViewComboBoxItemWrapper<DikeProfile>(newProfile);
 
-            var calculation = new GrassCoverErosionInwardsCalculationScenario();
+            var calculation = new GrassCoverErosionInwardsCalculationScenario(double.NaN);
 
             // Call & Assert
             SetPropertyAndVerifyNotificationsAndOutputForCalculation(row => row.DikeProfile = newValue, calculation);
@@ -112,7 +112,7 @@
             // Setup
             var dikeProfileChangedCounter = 0;
             var handler = new SetPropertyValueAfterConfirmationParameterTester(Enumerable.Empty<IObservable>());
-            var row = new GrassCoverErosionInwardsCalculationRow(new GrassCoverErosionInwardsCalculationScenario(), handler);
+            var row = new GrassCoverErosionInwardsCalculationRow(new GrassCoverErosionInwardsCalculationScenario(double.NaN), handler);
 
             row.DikeProfileChanged += (s, a) => dikeProfileChangedCounter++;
 
@@ -151,7 +151,7 @@
             var dikeProfileChangedCounter = 0;
             var handler = new SetPropertyValueAfterConfirmationParameterTester(Enumerable.Empty<IObservable>());
             DikeProfile dikeProfile = DikeProfileTestFactory.CreateDikeProfile();
-            var row = new GrassCoverErosionInwardsCalculationRow(new GrassCoverErosionInwardsCalculationScenario
+            var row = new GrassCoverErosionInwardsCalculationRow(new GrassCoverErosionInwardsCalculationScenario(double.NaN)
             {
                 InputParameters =
                 {
@@ -174,7 +174,7 @@
             // Setup
             const bool newValue = true;
 
-            var calculation = new GrassCoverErosionInwardsCalculationScenario();
+            var calculation = new GrassCoverErosionInwardsCalculationScenario(double.NaN);
 
             // Call & Assert
             SetPropertyAndVerifyNotificationsAndOutputForCalculation(row => row.UseBreakWater = newValue, calculation);
@@ -210,7 +210,7 @@
         public void BreakWaterType_AlwaysOnChange_NotifyObserverAndCalculationPropertyChanged(BreakWaterType breakWaterType, BreakWaterType newBreakWaterType)
         {
             // Setup
-            var calculation = new GrassCoverErosionInwardsCalculationScenario
+            var calculation = new GrassCoverErosionInwardsCalculationScenario(double.NaN)
             {
                 InputParameters =
                 {
@@ -252,7 +252,7 @@
             // Setup
             var newValue = new RoundedDouble(4, 16);
 
-            var calculation = new GrassCoverErosionInwardsCalculationScenario();
+            var calculation = new GrassCoverErosionInwardsCalculationScenario(double.NaN);
 
             // Call & Assert
             SetPropertyAndVerifyNotificationsAndOutputForCalculation(row => row.BreakWaterHeight = newValue, calculation);
@@ -285,7 +285,7 @@
             // Setup
             const bool newValue = true;
 
-            var calculation = new GrassCoverErosionInwardsCalculationScenario();
+            var calculation = new GrassCoverErosionInwardsCalculationScenario(double.NaN);
 
             // Call & Assert
             SetPropertyAndVerifyNotificationsAndOutputForCalculation(row => row.UseForeshoreGeometry = newValue, calculation);
@@ -318,7 +318,7 @@
             // Setup
             var newValue = new RoundedDouble(2, 2.08);
 
-            var calculation = new GrassCoverErosionInwardsCalculationScenario();
+            var calculation = new GrassCoverErosionInwardsCalculationScenario(double.NaN);
 
             // Call & Assert
             SetPropertyAndVerifyNotificationsAndOutputForCalculation(row => row.DikeHeight = newValue, calculation);
@@ -351,7 +351,7 @@
             // Setup
             var newValue = new RoundedDouble(4, 0.03);
 
-            var calculation = new GrassCoverErosionInwardsCalculationScenario();
+            var calculation = new GrassCoverErosionInwardsCalculationScenario(double.NaN);
 
             // Call & Assert
             SetPropertyAndVerifyNotificationsAndOutputForCalculation(row => row.MeanCriticalFlowRate = newValue, calculation);
@@ -384,7 +384,7 @@
             // Setup
             var newValue = new RoundedDouble(4, 0.0004);
 
-            var calculation = new GrassCoverErosionInwardsCalculationScenario();
+            var calculation = new GrassCoverErosionInwardsCalculationScenario(double.NaN);
 
             // Call & Assert
             SetPropertyAndVerifyNotificationsAndOutputForCalculation(row => row.StandardDeviationCriticalFlowRate = newValue, calculation);
@@ -516,10 +516,11 @@
         public void Constructor_DikeProfileNull_CorrectColumnStates()
         {
             // Setup
-            var calculationScenario = new GrassCoverErosionInwardsCalculationScenario();
+            var calculationScenario = new GrassCoverErosionInwardsCalculationScenario(double.NaN);
 
             // Call
-            var row = new GrassCoverErosionInwardsCalculationRow(calculationScenario, new ObservablePropertyChangeHandler(calculationScenario, new GrassCoverErosionInwardsInput()));
+            var row = new GrassCoverErosionInwardsCalculationRow(calculationScenario, new ObservablePropertyChangeHandler(
+                                                                     calculationScenario, new GrassCoverErosionInwardsInput(double.NaN)));
 
             // Assert
             IDictionary<int, DataGridViewColumnStateDefinition> columnStateDefinitions = row.ColumnStateDefinitions;
@@ -535,7 +536,7 @@
         public void Constructor_DikeProfileWithoutForeshoreGeometry_CorrectColumnStates(bool useBreakWater)
         {
             // Setup
-            var calculationScenario = new GrassCoverErosionInwardsCalculationScenario
+            var calculationScenario = new GrassCoverErosionInwardsCalculationScenario(double.NaN)
             {
                 InputParameters =
                 {
@@ -545,7 +546,8 @@
             };
 
             // Call
-            var row = new GrassCoverErosionInwardsCalculationRow(calculationScenario, new ObservablePropertyChangeHandler(calculationScenario, new GrassCoverErosionInwardsInput()));
+            var row = new GrassCoverErosionInwardsCalculationRow(calculationScenario, new ObservablePropertyChangeHandler(
+                                                                     calculationScenario, new GrassCoverErosionInwardsInput(double.NaN)));
 
             // Assert
             IDictionary<int, DataGridViewColumnStateDefinition> columnStateDefinitions = row.ColumnStateDefinitions;
@@ -561,7 +563,7 @@
         public void Constructor_DikeProfileWithForeshoreGeometry_CorrectColumnStates(bool useBreakWater)
         {
             // Setup
-            var calculationScenario = new GrassCoverErosionInwardsCalculationScenario
+            var calculationScenario = new GrassCoverErosionInwardsCalculationScenario(double.NaN)
             {
                 InputParameters =
                 {
@@ -574,7 +576,8 @@
             };
 
             // Call
-            var row = new GrassCoverErosionInwardsCalculationRow(calculationScenario, new ObservablePropertyChangeHandler(calculationScenario, new GrassCoverErosionInwardsInput()));
+            var row = new GrassCoverErosionInwardsCalculationRow(calculationScenario, new ObservablePropertyChangeHandler(
+                                                                     calculationScenario, new GrassCoverErosionInwardsInput(double.NaN)));
 
             // Assert
             IDictionary<int, DataGridViewColumnStateDefinition> columnStateDefinitions = row.ColumnStateDefinitions;
@@ -590,7 +593,7 @@
         public void UseBreakWater_AlwaysOnChange_CorrectColumnStates(bool useBreakWater)
         {
             // Setup
-            var calculationScenario = new GrassCoverErosionInwardsCalculationScenario
+            var calculationScenario = new GrassCoverErosionInwardsCalculationScenario(double.NaN)
             {
                 InputParameters =
                 {
@@ -599,7 +602,8 @@
             };
 
             // Call
-            var row = new GrassCoverErosionInwardsCalculationRow(calculationScenario, new ObservablePropertyChangeHandler(calculationScenario, new GrassCoverErosionInwardsInput()))
+            var row = new GrassCoverErosionInwardsCalculationRow(calculationScenario, new ObservablePropertyChangeHandler(
+                                                                     calculationScenario, new GrassCoverErosionInwardsInput(double.NaN)))
             {
                 UseBreakWater = useBreakWater
             };
@@ -614,7 +618,7 @@
         public void DikeProfile_OnChangeToNull_CorrectColumnStates()
         {
             // Setup
-            var calculationScenario = new GrassCoverErosionInwardsCalculationScenario
+            var calculationScenario = new GrassCoverErosionInwardsCalculationScenario(double.NaN)
             {
                 InputParameters =
                 {
@@ -623,7 +627,8 @@
             };
 
             // Call
-            var row = new GrassCoverErosionInwardsCalculationRow(calculationScenario, new ObservablePropertyChangeHandler(calculationScenario, new GrassCoverErosionInwardsInput()))
+            var row = new GrassCoverErosionInwardsCalculationRow(calculationScenario, new ObservablePropertyChangeHandler(
+                                                                     calculationScenario, new GrassCoverErosionInwardsInput(double.NaN)))
             {
                 DikeProfile = new DataGridViewComboBoxItemWrapper<DikeProfile>(null)
             };
@@ -640,10 +645,11 @@
         public void DikeProfile_OnChangeToProfileWithoutForeshoreGeometry_CorrectColumnStates()
         {
             // Setup
-            var calculationScenario = new GrassCoverErosionInwardsCalculationScenario();
+            var calculationScenario = new GrassCoverErosionInwardsCalculationScenario(double.NaN);
 
             // Call
-            var row = new GrassCoverErosionInwardsCalculationRow(calculationScenario, new ObservablePropertyChangeHandler(calculationScenario, new GrassCoverErosionInwardsInput()))
+            var row = new GrassCoverErosionInwardsCalculationRow(calculationScenario, new ObservablePropertyChangeHandler(
+                                                                     calculationScenario, new GrassCoverErosionInwardsInput(double.NaN)))
             {
                 DikeProfile = new DataGridViewComboBoxItemWrapper<DikeProfile>(DikeProfileTestFactory.CreateDikeProfile())
             };
@@ -660,10 +666,11 @@
         public void DikeProfile_OnChangeToProfileWithForeshoreGeometry_CorrectColumnStates()
         {
             // Setup
-            var calculationScenario = new GrassCoverErosionInwardsCalculationScenario();
+            var calculationScenario = new GrassCoverErosionInwardsCalculationScenario(double.NaN);
 
             // Call
-            var row = new GrassCoverErosionInwardsCalculationRow(calculationScenario, new ObservablePropertyChangeHandler(calculationScenario, new GrassCoverErosionInwardsInput()))
+            var row = new GrassCoverErosionInwardsCalculationRow(calculationScenario, new ObservablePropertyChangeHandler(
+                                                                     calculationScenario, new GrassCoverErosionInwardsInput(double.NaN)))
             {
                 DikeProfile = new DataGridViewComboBoxItemWrapper<DikeProfile>(DikeProfileTestFactory.CreateDikeProfile(new[]
                 {
Index: Riskeer/GrassCoverErosionInwards/test/Riskeer.GrassCoverErosionInwards.Forms.Test/Views/GrassCoverErosionInwardsCalculationsViewTest.cs
===================================================================
diff -u -r708d46c0fd7bd4a3038df65c71b03e8944c0a256 -r0f9e6989c163dd5b5f7a00faf6f1f1f706880394
--- Riskeer/GrassCoverErosionInwards/test/Riskeer.GrassCoverErosionInwards.Forms.Test/Views/GrassCoverErosionInwardsCalculationsViewTest.cs	(.../GrassCoverErosionInwardsCalculationsViewTest.cs)	(revision 708d46c0fd7bd4a3038df65c71b03e8944c0a256)
+++ Riskeer/GrassCoverErosionInwards/test/Riskeer.GrassCoverErosionInwards.Forms.Test/Views/GrassCoverErosionInwardsCalculationsViewTest.cs	(.../GrassCoverErosionInwardsCalculationsViewTest.cs)	(revision 0f9e6989c163dd5b5f7a00faf6f1f1f706880394)
@@ -775,7 +775,7 @@
             {
                 Children =
                 {
-                    new GrassCoverErosionInwardsCalculationScenario
+                    new GrassCoverErosionInwardsCalculationScenario(double.NaN)
                     {
                         Name = "Calculation 1",
                         Comments =
@@ -808,7 +808,7 @@
                         },
                         Output = null
                     },
-                    new GrassCoverErosionInwardsCalculationScenario
+                    new GrassCoverErosionInwardsCalculationScenario(double.NaN)
                     {
                         Name = "Calculation 2",
                         Comments =
Index: Riskeer/GrassCoverErosionInwards/test/Riskeer.GrassCoverErosionInwards.Forms.Test/Views/GrassCoverErosionInwardsFailureMechanismResultViewTest.cs
===================================================================
diff -u -ra4e3b2745a48598260107bb5bfca7485205cdcc2 -r0f9e6989c163dd5b5f7a00faf6f1f1f706880394
--- Riskeer/GrassCoverErosionInwards/test/Riskeer.GrassCoverErosionInwards.Forms.Test/Views/GrassCoverErosionInwardsFailureMechanismResultViewTest.cs	(.../GrassCoverErosionInwardsFailureMechanismResultViewTest.cs)	(revision a4e3b2745a48598260107bb5bfca7485205cdcc2)
+++ Riskeer/GrassCoverErosionInwards/test/Riskeer.GrassCoverErosionInwards.Forms.Test/Views/GrassCoverErosionInwardsFailureMechanismResultViewTest.cs	(.../GrassCoverErosionInwardsFailureMechanismResultViewTest.cs)	(revision 0f9e6989c163dd5b5f7a00faf6f1f1f706880394)
@@ -286,7 +286,7 @@
 
             protected override GrassCoverErosionInwardsCalculation CreateCalculation()
             {
-                return new GrassCoverErosionInwardsCalculation();
+                return new GrassCoverErosionInwardsCalculation(double.NaN);
             }
         }