Index: DamEngine/trunk/src/Deltares.DamEngine.TestHelpers/Factories/FactoryForSoilProfiles.cs
===================================================================
diff -u -r4874 -r4879
--- DamEngine/trunk/src/Deltares.DamEngine.TestHelpers/Factories/FactoryForSoilProfiles.cs	(.../FactoryForSoilProfiles.cs)	(revision 4874)
+++ DamEngine/trunk/src/Deltares.DamEngine.TestHelpers/Factories/FactoryForSoilProfiles.cs	(.../FactoryForSoilProfiles.cs)	(revision 4879)
@@ -996,7 +996,7 @@
     /// Create a soil profile 2D with one layer
     /// </summary>
     /// <returns>The 2D Soil Profile</returns>
-    public static SoilProfile2D CreateSoilProfile2DWithOneLayer()
+    public static SoilProfile2D CreateSoilProfile2DWithTwoLayers()
     {
         const string layerName = "Layer";
         const string topLayerName = "TopLayer";
@@ -1034,7 +1034,7 @@
     /// Creates 2D SoilProfile with two layers
     /// </summary>
     /// <returns>The 2D Soil Profile</returns>
-    public static SoilProfile2D CreateSoilProfile2DWithTwoLayers()
+    public static SoilProfile2D CreateSoilProfile2DWithThreeLayers()
     {
         const string layer1Name = "Layer1";
         const string layer2Name = "Layer2";
Index: DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/GeometryData.cs
===================================================================
diff -u -r4874 -r4879
--- DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/GeometryData.cs	(.../GeometryData.cs)	(revision 4874)
+++ DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/GeometryData.cs	(.../GeometryData.cs)	(revision 4879)
@@ -136,6 +136,43 @@
     }
 
     /// <summary>
+    /// Deletes all the loose curves.
+    /// Returns true when the loose curve is inside publisherEventArgs surface.
+    /// Calls Regeneration if the funtion returns true.
+    /// </summary>
+    public bool DeleteLooseCurves()
+    {
+        SynchronizeLoops();
+        geometryGenerator.SetupCurveSurfaceAssociations();
+        bool regenerateGeometry = false;
+        var curvesToDelete = new List<GeometryCurve>();
+        foreach (var curve in Curves)
+        {
+            if ((curve.SurfaceAtLeft == null && curve.SurfaceAtRight == null))                    
+            {
+                curvesToDelete.Add(curve);                    
+            }
+            else if ((curve.SurfaceAtLeft != null && curve.SurfaceAtRight != null) &&
+                     (curve.SurfaceAtLeft == curve.SurfaceAtRight))
+            {
+                regenerateGeometry = true;
+                curvesToDelete.Add(curve);
+            }
+        }
+
+        foreach (var curve in curvesToDelete)
+        {
+            DeleteCurve(curve, false);
+        }
+        if (regenerateGeometry)
+        {
+            RegenerateGeometry();
+        }
+
+        return regenerateGeometry;
+    }
+
+    /// <summary>
     /// Deletes the curve if the aValidate is true.
     /// </summary>
     /// <param name="geometryCurve">The curve to delete</param>
@@ -493,8 +530,6 @@
         {
             SynchronizeLoops();
             RemoveDoublesFromNewlyEffectedPointsAndCurves();
-            // Curves.Clear();
-            // Points.Clear();
             Points.AddRange(NewlyEffectedPoints);
             Curves.AddRange(NewlyEffectedCurves);
 
Index: DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/GeometryGenerator.cs
===================================================================
diff -u -r4835 -r4879
--- DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/GeometryGenerator.cs	(.../GeometryGenerator.cs)	(revision 4835)
+++ DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/GeometryGenerator.cs	(.../GeometryGenerator.cs)	(revision 4879)
@@ -773,7 +773,7 @@
     /// <summary>
     /// Setups the curve surface associations.
     /// </summary>
-    private void SetupCurveSurfaceAssociations()
+    public void SetupCurveSurfaceAssociations()
     {
         SetUpGeometryLoopDirections();
         // only try to connect curves to surfaces when there are loops (i.e. surfaces)
Index: DamEngine/trunk/src/Deltares.DamEngine.Data.Tests/Geotechnics/GeometryHelperTests.cs
===================================================================
diff -u -r4874 -r4879
--- DamEngine/trunk/src/Deltares.DamEngine.Data.Tests/Geotechnics/GeometryHelperTests.cs	(.../GeometryHelperTests.cs)	(revision 4874)
+++ DamEngine/trunk/src/Deltares.DamEngine.Data.Tests/Geotechnics/GeometryHelperTests.cs	(.../GeometryHelperTests.cs)	(revision 4879)
@@ -43,7 +43,10 @@
     public void GivenTwoLayerGeometryWhenExtendingLeftThenLeftBoundaryIsChanged()
     {
         // Given
-        SoilProfile2D soilProfile2D = FactoryForSoilProfiles.CreateSoilProfile2DWithTwoLayers();
+        SoilProfile2D soilProfile2D = FactoryForSoilProfiles.CreateSoilProfile2DWithThreeLayers();
+        // For debugging purposes
+        // GeometryExporter.ExportToFile(soilProfile2D.Geometry, visualizationFolder + "Geometry.txt");
+        // GeometryExporter.ExportToJsonFile(soilProfile2D.Geometry, visualizationFolder + "Geometry.json");
 
         // When
         GeometryHelper.ExtendGeometryLeft(soilProfile2D.Geometry, -2);
@@ -64,7 +67,7 @@
     public void GivenTwoLayerGeometryWhenExtendingLeftToTheRightThenExceptionIsThrown()
     {
         // Given
-        SoilProfile2D soilProfile2D = FactoryForSoilProfiles.CreateSoilProfile2DWithTwoLayers();
+        SoilProfile2D soilProfile2D = FactoryForSoilProfiles.CreateSoilProfile2DWithThreeLayers();
 
         // When & Then
         Assert.Throws<ArgumentException>(() => { GeometryHelper.ExtendGeometryLeft(soilProfile2D.Geometry, 2); });
@@ -74,7 +77,7 @@
     public void GivenTwoLayerGeometryWhenExtendingRightThenRightBoundaryIsChanged()
     {
         // Given
-        SoilProfile2D soilProfile2D = FactoryForSoilProfiles.CreateSoilProfile2DWithTwoLayers();
+        SoilProfile2D soilProfile2D = FactoryForSoilProfiles.CreateSoilProfile2DWithThreeLayers();
 
         // When
         GeometryHelper.ExtendGeometryRight(soilProfile2D.Geometry, 12);
@@ -92,7 +95,7 @@
     public void GivenTwoLayerGeometryWhenExtendingRightToTheLeftThenExceptionIsThrown()
     {
         // Given
-        SoilProfile2D soilProfile2D = FactoryForSoilProfiles.CreateSoilProfile2DWithTwoLayers();
+        SoilProfile2D soilProfile2D = FactoryForSoilProfiles.CreateSoilProfile2DWithThreeLayers();
 
         // When & Then
         Assert.Throws<ArgumentException>(() => { GeometryHelper.ExtendGeometryRight(soilProfile2D.Geometry, 8); });
Index: DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/GeometryHelper.cs
===================================================================
diff -u -r4874 -r4879
--- DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/GeometryHelper.cs	(.../GeometryHelper.cs)	(revision 4874)
+++ DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/GeometryHelper.cs	(.../GeometryHelper.cs)	(revision 4879)
@@ -66,6 +66,7 @@
             }
         }
 
+        geometry.DeleteLooseCurves();
         geometry.RegenerateGeometry();
         geometry.Rebox();
         geometry.Left = toX;
@@ -110,6 +111,7 @@
             }
         }
 
+        geometry.DeleteLooseCurves();
         geometry.RegenerateGeometry();
         geometry.Rebox();
         geometry.Right = toX;
Index: DamEngine/trunk/src/Deltares.DamEngine.Data.Tests/Geotechnics/SoilProfile2DSurfaceLineHelperTests.cs
===================================================================
diff -u -r4759 -r4879
--- DamEngine/trunk/src/Deltares.DamEngine.Data.Tests/Geotechnics/SoilProfile2DSurfaceLineHelperTests.cs	(.../SoilProfile2DSurfaceLineHelperTests.cs)	(revision 4759)
+++ DamEngine/trunk/src/Deltares.DamEngine.Data.Tests/Geotechnics/SoilProfile2DSurfaceLineHelperTests.cs	(.../SoilProfile2DSurfaceLineHelperTests.cs)	(revision 4879)
@@ -38,7 +38,7 @@
     public void GivenSurfaceLineAndSoilProfile2D_WhenCheckIsSurfaceLineInsideSoilProfile2D_ThenReturnCorrectResult(PositionToSoilProfile2D positionToSoilProfile2D, bool result)
     {
         // Given
-        SoilProfile2D soilProfile2D = FactoryForSoilProfiles.CreateSoilProfile2DWithOneLayer();
+        SoilProfile2D soilProfile2D = FactoryForSoilProfiles.CreateSoilProfile2DWithTwoLayers();
         SurfaceLine2 surfaceLine = CreateSurfaceLineForSoilProfile2D(soilProfile2D, positionToSoilProfile2D);
 
         // When-Then