Index: dam engine/trunk/src/Deltares.DamEngine.Calculators/Dikes Design/DesignCalculator.cs
===================================================================
diff -u -r694 -r697
--- dam engine/trunk/src/Deltares.DamEngine.Calculators/Dikes Design/DesignCalculator.cs	(.../DesignCalculator.cs)	(revision 694)
+++ dam engine/trunk/src/Deltares.DamEngine.Calculators/Dikes Design/DesignCalculator.cs	(.../DesignCalculator.cs)	(revision 697)
@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Text;
 using Deltares.DamEngine.Calculators.KernelWrappers.Common;
 using Deltares.DamEngine.Calculators.KernelWrappers.DamPipingBligh;
 using Deltares.DamEngine.Calculators.KernelWrappers.DamPipingSellmeijer4Forces;
@@ -73,7 +74,13 @@
                             // Process output
                             calculationMessages.AddRange(locationCalculationMessages);
                             DesignResult designResult;
-                            string resultMessage = locationCalculationMessages.ToString();
+                            StringBuilder sb = new StringBuilder();
+                            foreach (var message in locationCalculationMessages)
+                            {
+                                sb.Append(message.Message + Environment.NewLine);
+                            }
+                            string resultMessage = sb.ToString();
+
                             kernelWrapper.PostProcess(damKernelInput, kernelDataOutput, resultMessage, out designResult);
                             damProjectData.DesignCalculations.Add(designResult);
                         }