Index: DamEngine/trunk/src/Deltares.DamEngine.Calculators.Tests/KernelWrappers/MacroStabilityCommon/MacroStabilityCommonHelperTests.cs
===================================================================
diff -u -r5002 -r5003
--- DamEngine/trunk/src/Deltares.DamEngine.Calculators.Tests/KernelWrappers/MacroStabilityCommon/MacroStabilityCommonHelperTests.cs	(.../MacroStabilityCommonHelperTests.cs)	(revision 5002)
+++ DamEngine/trunk/src/Deltares.DamEngine.Calculators.Tests/KernelWrappers/MacroStabilityCommon/MacroStabilityCommonHelperTests.cs	(.../MacroStabilityCommonHelperTests.cs)	(revision 5003)
@@ -246,6 +246,29 @@
         });
     }
 
+    [Test, Ignore("Work in progress")]
+    public void GivenSoilGeometryProbabilityWithSoilProfile2DAndSurfaceLineCuttingTopBoundarySoilProfile2DWhenCombiningThenCorrectSoilProfile2DIsCreated()
+    {
+        SoilGeometryProbability soilGeometryProbability = CreateSoilGeometryProbabilityWithSoilProfile2DWithSurfaceLineDitchDike();
+        SurfaceLine2 surfaceLine = FactoryForSurfaceLines.CreateSurfaceLineCuttingSurfaceLineDikeAndDitch();
+        // Now combine the soilGeometryProbability with the surfaceLine which should result that the top part of the 
+        // SoilProfile2D is removed (between top boundary of the SoilProfile2D and the surfaceLine)
+        MacroStabilityCommonHelper.CombineSoilProfileWithSurfaceLine(soilGeometryProbability, surfaceLine, new Soil());
+        GeometryData geometry = soilGeometryProbability.SoilProfile2D.Geometry;
+        // For debugging purposes
+        // GeometryExporter.ExportToFile(geometry, visualizationFolder + "Geometry.txt");
+        // GeometryExporter.ExportToJsonFile(geometry, visualizationFolder + "Geometry.json");
+        Assert.Multiple(() =>
+        {
+            Assert.That(soilGeometryProbability.SoilProfileType, Is.EqualTo(SoilProfileType.ProfileType2D));
+            Assert.That(geometry.Surfaces, Has.Count.EqualTo(1));
+            Assert.That(geometry.Left, Is.EqualTo(0.0).Within(cTolerance));
+            Assert.That(geometry.Right, Is.EqualTo(75.0).Within(cTolerance));
+            Assert.That(geometry.Bottom, Is.EqualTo(-20.0).Within(cTolerance));
+            Assert.That(geometry.MaxGeometryPointsZ, Is.EqualTo(7.0).Within(cTolerance));
+        });
+    }
+
     private SoilGeometryProbability CreateSoilGeometryProbabilityWithSoilProfile2DWithSurfaceLineDitchDike()
     {
         SoilGeometryProbability soilGeometryProbability = FactoryForSoilGeometryProbabilities.CreateSoilGeometryProbabilityWithSoilProfile1D();
Index: DamEngine/trunk/src/Deltares.DamEngine.TestHelpers/Factories/FactoryForSurfaceLines.cs
===================================================================
diff -u -r5002 -r5003
--- DamEngine/trunk/src/Deltares.DamEngine.TestHelpers/Factories/FactoryForSurfaceLines.cs	(.../FactoryForSurfaceLines.cs)	(revision 5002)
+++ DamEngine/trunk/src/Deltares.DamEngine.TestHelpers/Factories/FactoryForSurfaceLines.cs	(.../FactoryForSurfaceLines.cs)	(revision 5003)
@@ -840,4 +840,31 @@
         surfaceLine.Geometry.SyncCalcPoints();
         return surfaceLine;
     }
+
+    /// <summary>
+    /// Creates a surface line, that contains a dike and is cutting the SurfaceLineWithDikeAndDitch. 
+    /// </summary>
+    /// <returns>surface line</returns>
+    public static SurfaceLine2 CreateSurfaceLineCuttingSurfaceLineDikeAndDitch()
+    {
+        var surfaceLine = new SurfaceLine2
+        {
+            Name = "BelowSurfaceLineWithDikeAndDitch",
+            Geometry = new GeometryPointString(),
+            CharacteristicPoints =
+            {
+                GeometryMustContainPoint = true
+            }
+        };
+
+        surfaceLine.EnsurePointOfType(0.0, -2.0, CharacteristicPointType.SurfaceLevelOutside);
+        surfaceLine.EnsurePointOfType(10.0, -2.0, CharacteristicPointType.DikeToeAtRiver);
+        surfaceLine.EnsurePointOfType(34.5, 7.0, CharacteristicPointType.DikeTopAtRiver);
+        surfaceLine.EnsurePointOfType(40.5, 7.0, CharacteristicPointType.DikeTopAtPolder);
+        surfaceLine.EnsurePointOfType(50.5, -2.0, CharacteristicPointType.DikeToeAtPolder);
+        surfaceLine.EnsurePointOfType(75.0, -2.0, CharacteristicPointType.SurfaceLevelInside);
+
+        surfaceLine.Geometry.SyncCalcPoints();
+        return surfaceLine;
+    }
 }
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