Index: Riskeer/GrassCoverErosionInwards/src/Riskeer.GrassCoverErosionInwards.Forms/Views/GrassCoverErosionInwardsCalculationRow.cs
===================================================================
diff -u -rb5f55a106a119d827da89d0b47251f5854f080b7 -r8b712b8935477a50d1a008769d6f0f3bc582128a
--- Riskeer/GrassCoverErosionInwards/src/Riskeer.GrassCoverErosionInwards.Forms/Views/GrassCoverErosionInwardsCalculationRow.cs	(.../GrassCoverErosionInwardsCalculationRow.cs)	(revision b5f55a106a119d827da89d0b47251f5854f080b7)
+++ Riskeer/GrassCoverErosionInwards/src/Riskeer.GrassCoverErosionInwards.Forms/Views/GrassCoverErosionInwardsCalculationRow.cs	(.../GrassCoverErosionInwardsCalculationRow.cs)	(revision 8b712b8935477a50d1a008769d6f0f3bc582128a)
@@ -40,6 +40,7 @@
     /// </summary>
     public class GrassCoverErosionInwardsCalculationRow : CalculationRow<GrassCoverErosionInwardsCalculationScenario>, IHasColumnStateDefinitions
     {
+        private const int useBreakWaterColumnIndex = 3;
         private const int breakWaterTypeColumnIndex = 4;
         private const int breakWaterHeightColumnIndex = 5;
         private const int useForeshoreColumnIndex = 6;
@@ -61,6 +62,7 @@
         {
             ColumnStateDefinitions = new Dictionary<int, DataGridViewColumnStateDefinition>();
             CreateColumnStateDefinitions();
+            UpdateUseBreakWaterColumnStateDefinitions();
             UpdateBreakWaterTypeAndHeightColumnStateDefinitions();
             UpdateUseForeshoreColumnStateDefinitions();
         }
@@ -77,6 +79,8 @@
                 if (!ReferenceEquals(Calculation.InputParameters.DikeProfile, valueToSet))
                 {
                     PropertyChangeHelper.ChangePropertyAndNotify(() => Calculation.InputParameters.DikeProfile = valueToSet, PropertyChangeHandler);
+                    UpdateUseBreakWaterColumnStateDefinitions();
+                    UpdateBreakWaterTypeAndHeightColumnStateDefinitions();
                     DikeProfileChanged?.Invoke(this, EventArgs.Empty);
                 }
             }
@@ -204,6 +208,7 @@
 
         private void CreateColumnStateDefinitions()
         {
+            ColumnStateDefinitions.Add(useBreakWaterColumnIndex, new DataGridViewColumnStateDefinition());
             ColumnStateDefinitions.Add(breakWaterTypeColumnIndex, new DataGridViewColumnStateDefinition());
             ColumnStateDefinitions.Add(breakWaterHeightColumnIndex, new DataGridViewColumnStateDefinition());
             ColumnStateDefinitions.Add(useForeshoreColumnIndex, new DataGridViewColumnStateDefinition());
@@ -236,5 +241,18 @@
                 ColumnStateHelper.EnableColumn(ColumnStateDefinitions[useForeshoreColumnIndex]);
             }
         }
+
+        private void UpdateUseBreakWaterColumnStateDefinitions()
+        {
+            DikeProfile dikeProfile = Calculation.InputParameters.DikeProfile;
+            if (dikeProfile == null)
+            {
+                ColumnStateHelper.DisableColumn(ColumnStateDefinitions[useBreakWaterColumnIndex]);
+            }
+            else
+            {
+                ColumnStateHelper.EnableColumn(ColumnStateDefinitions[useBreakWaterColumnIndex]);
+            }
+        }
     }
 }
\ No newline at end of file
Index: Riskeer/GrassCoverErosionInwards/test/Riskeer.GrassCoverErosionInwards.Forms.Test/Views/GrassCoverErosionInwardsCalculationRowTest.cs
===================================================================
diff -u -rb5f55a106a119d827da89d0b47251f5854f080b7 -r8b712b8935477a50d1a008769d6f0f3bc582128a
--- Riskeer/GrassCoverErosionInwards/test/Riskeer.GrassCoverErosionInwards.Forms.Test/Views/GrassCoverErosionInwardsCalculationRowTest.cs	(.../GrassCoverErosionInwardsCalculationRowTest.cs)	(revision b5f55a106a119d827da89d0b47251f5854f080b7)
+++ Riskeer/GrassCoverErosionInwards/test/Riskeer.GrassCoverErosionInwards.Forms.Test/Views/GrassCoverErosionInwardsCalculationRowTest.cs	(.../GrassCoverErosionInwardsCalculationRowTest.cs)	(revision 8b712b8935477a50d1a008769d6f0f3bc582128a)
@@ -44,6 +44,7 @@
     [TestFixture]
     public class GrassCoverErosionInwardsCalculationRowTest
     {
+        private const int useBreakWaterColumnIndex = 3;
         private const int breakWaterTypeColumnIndex = 4;
         private const int breakWaterHeightColumnIndex = 5;
         private const int useForeshoreColumnIndex = 6;
@@ -67,8 +68,9 @@
             Assert.AreSame(calculationScenario, row.Calculation);
 
             IDictionary<int, DataGridViewColumnStateDefinition> columnStateDefinitions = row.ColumnStateDefinitions;
-            Assert.AreEqual(3, columnStateDefinitions.Count);
+            Assert.AreEqual(4, columnStateDefinitions.Count);
 
+            DataGridViewControlColumnStateDefinitionTestHelper.AssertColumnStateDefinition(columnStateDefinitions, useBreakWaterColumnIndex);
             DataGridViewControlColumnStateDefinitionTestHelper.AssertColumnStateDefinition(columnStateDefinitions, breakWaterTypeColumnIndex);
             DataGridViewControlColumnStateDefinitionTestHelper.AssertColumnStateDefinition(columnStateDefinitions, breakWaterHeightColumnIndex);
             DataGridViewControlColumnStateDefinitionTestHelper.AssertColumnStateDefinition(columnStateDefinitions, useForeshoreColumnIndex);