Index: Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Data/ClosingStructuresInput.cs
===================================================================
diff -u -r41a37c93cb0b3e36ff7023c9f42b4e6225598b55 -r3c5c79577a895d7318b90d891f3647abae4f701e
--- Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Data/ClosingStructuresInput.cs	(.../ClosingStructuresInput.cs)	(revision 41a37c93cb0b3e36ff7023c9f42b4e6225598b55)
+++ Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Data/ClosingStructuresInput.cs	(.../ClosingStructuresInput.cs)	(revision 3c5c79577a895d7318b90d891f3647abae4f701e)
@@ -51,8 +51,8 @@
             factorStormDurationOpenStructure = new RoundedDouble(2, double.NaN);
             deviationWaveDirection = new RoundedDouble(2, double.NaN);
 
-            failureProbabilityOpenStructure = double.NaN;
-            failureProbabilityReparation = double.NaN;
+            failureProbabilityOpenStructure = 0;
+            failureProbabilityReparation = 0;
             probabilityOpenStructureBeforeFlooding = 1.0;
 
             thresholdHeightOpenWeir = new NormalDistribution(2)
Index: Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Data.Test/ClosingStructuresInputTest.cs
===================================================================
diff -u -r41a37c93cb0b3e36ff7023c9f42b4e6225598b55 -r3c5c79577a895d7318b90d891f3647abae4f701e
--- Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Data.Test/ClosingStructuresInputTest.cs	(.../ClosingStructuresInputTest.cs)	(revision 41a37c93cb0b3e36ff7023c9f42b4e6225598b55)
+++ Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Data.Test/ClosingStructuresInputTest.cs	(.../ClosingStructuresInputTest.cs)	(revision 3c5c79577a895d7318b90d891f3647abae4f701e)
@@ -73,8 +73,8 @@
             // Assert
             Assert.IsInstanceOf<StructuresInputBase<ClosingStructure>>(input);
 
-            Assert.IsNaN(input.FailureProbabilityOpenStructure);
-            Assert.IsNaN(input.FailureProbabilityReparation);
+            Assert.AreEqual(0, input.FailureProbabilityOpenStructure);
+            Assert.AreEqual(0, input.FailureProbabilityReparation);
 
             Assert.IsNaN(input.FactorStormDurationOpenStructure);
             Assert.IsNaN(input.DeviationWaveDirection);