Index: DamEngine/trunk/src/Deltares.DamEngine.Calculators.Tests/KernelWrappers/MacroStabilityCommon/MacroStabilityCommonHelperTests.cs
===================================================================
diff -u -r4992 -r4994
--- DamEngine/trunk/src/Deltares.DamEngine.Calculators.Tests/KernelWrappers/MacroStabilityCommon/MacroStabilityCommonHelperTests.cs	(.../MacroStabilityCommonHelperTests.cs)	(revision 4992)
+++ DamEngine/trunk/src/Deltares.DamEngine.Calculators.Tests/KernelWrappers/MacroStabilityCommon/MacroStabilityCommonHelperTests.cs	(.../MacroStabilityCommonHelperTests.cs)	(revision 4994)
@@ -88,6 +88,36 @@
         });
     }
 
+    [Test]
+    public void GivenSoilGeometryProbabilityWithSoilProfile2DAndMatchingSurfaceLineShortOnLeftWhenCombiningThenSoilProfile2DIsCutOnTheLeft()
+    {
+        SoilGeometryProbability soilGeometryProbability = CreateSoilGeometryProbabilityWithSoilProfile2DWithSurfaceLineDitchDike();
+        // Create the same surfaceline as is used for creating the SoilProfile2D in the SoilGeometryProbability
+        // But now the SurfaceLine2 is shorter on the left side (5.0 instead of 0.0)
+        SurfaceLine2 surfaceLine = FactoryForSurfaceLines.CreateSurfaceLineWithDikeAndDitch();
+        surfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.SurfaceLevelOutside).X =
+            surfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.SurfaceLevelOutside).X + 5.0;
+        // Now combine the soilGeometryProbability with the same SurfaceLine2 which should result the SoilProfile2D
+        // being cut to the left with 5.0 meters
+        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(5.0).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.SurfaceLine.Points.First().X, Is.EqualTo(5.0).Within(cTolerance));
+            Assert.That(geometry.SurfaceLine.Points.First().Z, Is.EqualTo(0.0).Within(cTolerance));
+            Assert.That(geometry.SurfaceLine.Points.Last().X, Is.EqualTo(75.0).Within(cTolerance));
+            Assert.That(geometry.SurfaceLine.Points.Last().Z, Is.EqualTo(0.0).Within(cTolerance));
+        });
+    }
+
     private SoilGeometryProbability CreateSoilGeometryProbabilityWithSoilProfile2DWithSurfaceLineDitchDike()
     {
         SoilGeometryProbability soilGeometryProbability = FactoryForSoilGeometryProbabilities.CreateSoilGeometryProbabilityWithSoilProfile1D();
Index: DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/MacroStabilityCommon/MacroStabilityCommonHelper.cs
===================================================================
diff -u -r4979 -r4994
--- DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/MacroStabilityCommon/MacroStabilityCommonHelper.cs	(.../MacroStabilityCommonHelper.cs)	(revision 4979)
+++ DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/MacroStabilityCommon/MacroStabilityCommonHelper.cs	(.../MacroStabilityCommonHelper.cs)	(revision 4994)
@@ -32,6 +32,7 @@
 using Deltares.DamEngine.Data.Design;
 using Deltares.DamEngine.Data.General;
 using Deltares.DamEngine.Data.General.Results;
+using Deltares.DamEngine.Data.Geometry;
 using Deltares.DamEngine.Data.Geotechnics;
 using Deltares.DamEngine.Data.Standard.Calculation;
 using Deltares.DamEngine.Data.Standard.Language;
@@ -419,8 +420,19 @@
         {
             throw new ArgumentNullException(nameof(subSoilScenario.SoilProfile1D), @"SoilProfile2D cannot be null.");
         }
+
+        FitSoilProfile2DToSurfaceLine(subSoilScenario, surfaceLine2);
     }
 
+    private static void FitSoilProfile2DToSurfaceLine(SoilGeometryProbability subSoilScenario, SurfaceLine2 surfaceLine2)
+    {
+        double surfaceLine2LeftX = surfaceLine2.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.SurfaceLevelOutside).X;
+        if (surfaceLine2LeftX > subSoilScenario.SoilProfile2D.Geometry.GetGeometryBounds().Left)
+        {
+            GeometryHelper.CutGeometryLeft(subSoilScenario.SoilProfile2D.Geometry, surfaceLine2LeftX);
+        }
+    }
+
     /// <summary>
     /// Combines the surfaceline with the SoilProfile1D.
     /// </summary>