Index: Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Forms/Views/ClosingStructuresFailureMechanismSectionResultRow.cs
===================================================================
diff -u -reb57d12cd6a211b057827b5c8ec4c04973535724 -r26584a20ed79a9a782456c5ad758832e689f0f22
--- Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Forms/Views/ClosingStructuresFailureMechanismSectionResultRow.cs	(.../ClosingStructuresFailureMechanismSectionResultRow.cs)	(revision eb57d12cd6a211b057827b5c8ec4c04973535724)
+++ Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Forms/Views/ClosingStructuresFailureMechanismSectionResultRow.cs	(.../ClosingStructuresFailureMechanismSectionResultRow.cs)	(revision 26584a20ed79a9a782456c5ad758832e689f0f22)
@@ -386,7 +386,8 @@
 
             FailureMechanismSectionResultRowHelper.SetColumnState(ColumnStateDefinitions[simpleAssessmentResultIndex], false);
             FailureMechanismSectionResultRowHelper.SetColumnState(ColumnStateDefinitions[detailedAssessmentResultIndex], simpleAssessmentSufficient);
-            if (simpleAssessmentSufficient)
+            if (simpleAssessmentSufficient
+                || !FailureMechanismSectionResultRowHelper.DetailedAssessmentResultIsProbability(DetailedAssessmentResult))
             {
                 FailureMechanismSectionResultRowHelper.DisableColumn(ColumnStateDefinitions[detailedAssessmentProbabilityIndex]);
             }
Index: Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Forms.Test/Views/ClosingStructuresFailureMechanismSectionResultRowTest.cs
===================================================================
diff -u -reb57d12cd6a211b057827b5c8ec4c04973535724 -r26584a20ed79a9a782456c5ad758832e689f0f22
--- Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Forms.Test/Views/ClosingStructuresFailureMechanismSectionResultRowTest.cs	(.../ClosingStructuresFailureMechanismSectionResultRowTest.cs)	(revision eb57d12cd6a211b057827b5c8ec4c04973535724)
+++ Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Forms.Test/Views/ClosingStructuresFailureMechanismSectionResultRowTest.cs	(.../ClosingStructuresFailureMechanismSectionResultRowTest.cs)	(revision 26584a20ed79a9a782456c5ad758832e689f0f22)
@@ -555,6 +555,41 @@
             }
         }
 
+        [Test]
+        [TestCase(DetailedAssessmentResultType.NotAssessed, false)]
+        [TestCase(DetailedAssessmentResultType.Probability, true)]
+        public void Constructor_WithDetailedAssessmentResultSet_ExpectedColumnStates(DetailedAssessmentResultType detailedAssessmentResult,
+                                                                                     bool cellEnabled)
+        {
+            // Setup
+            var failureMechanism = new ClosingStructuresFailureMechanism();
+
+            var mocks = new MockRepository();
+            IAssessmentSection assessmentSection = AssessmentSectionHelper.CreateAssessmentSectionStub(failureMechanism, mocks);
+            mocks.ReplayAll();
+
+            FailureMechanismSection section = FailureMechanismSectionTestFactory.CreateFailureMechanismSection();
+            var result = new ClosingStructuresFailureMechanismSectionResult(section)
+            {
+                DetailedAssessmentResult = detailedAssessmentResult,
+                Calculation = CreateCalculationWithOutput()
+            };
+
+            using (new AssemblyToolCalculatorFactoryConfig())
+            {
+                // Call
+                var row = new ClosingStructuresFailureMechanismSectionResultRow(
+                    result, failureMechanism, assessmentSection, ConstructionProperties);
+
+                // Assert
+                IDictionary<int, DataGridViewColumnStateDefinition> columnStateDefinitions = row.ColumnStateDefinitions;
+                FailureMechanismSectionResultRowTestHelper.AssertColumnState(columnStateDefinitions[ConstructionProperties.DetailedAssessmentProbabilityIndex],
+                                                                             cellEnabled,
+                                                                             true);
+                mocks.VerifyAll();
+            }
+        }
+
         #endregion
 
         private static TestClosingStructuresCalculation CreateCalculationWithOutput()