Index: DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/GeometryHelper.cs
===================================================================
diff -u -r6404 -r7041
--- DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/GeometryHelper.cs	(.../GeometryHelper.cs)	(revision 6404)
+++ DamEngine/trunk/src/Deltares.DamEngine.Data/Geometry/GeometryHelper.cs	(.../GeometryHelper.cs)	(revision 7041)
@@ -84,7 +84,16 @@
         {
             var p1 = new Point2D(geometryCurve.HeadPoint.X, geometryCurve.HeadPoint.Z);
             var p2 = new Point2D(geometryCurve.EndPoint.X, geometryCurve.EndPoint.Z);
-            // If head or endpoint is at atX, skip this curve
+            // If head or endpoint is at atX, add this existing point to the local list
+            if (Math.Abs(p1.X - atX) < GeometryConstants.Accuracy)
+            {
+                splitPoints.Add(p1);
+            }
+            if (Math.Abs(p2.X - atX) < GeometryConstants.Accuracy)
+            {
+                splitPoints.Add(p2);
+            }
+            
             if (Math.Abs(p1.X - atX) > GeometryConstants.Accuracy && Math.Abs(p2.X - atX) > GeometryConstants.Tolerance)
             {
                 var p3 = new Point2D(intersectionCurve.HeadPoint.X, intersectionCurve.HeadPoint.Z);
@@ -140,7 +149,16 @@
         {
             var p1 = new Point2D(geometryCurve.HeadPoint.X, geometryCurve.HeadPoint.Z);
             var p2 = new Point2D(geometryCurve.EndPoint.X, geometryCurve.EndPoint.Z);
-            // If head or endpoint is at atX, skip this curve
+            // If head or endpoint is at atX, add this existing point to the local list
+            if (Math.Abs(p1.X - atX) < GeometryConstants.Accuracy)
+            {
+                splitPoints.Add(p1);
+            }
+            if (Math.Abs(p2.X - atX) < GeometryConstants.Accuracy)
+            {
+               splitPoints.Add(p2);
+            }
+
             if (Math.Abs(p1.X - atX) > GeometryConstants.Accuracy && Math.Abs(p2.X - atX) > GeometryConstants.Accuracy)
             {
                 var p3 = new Point2D(intersectionCurve.HeadPoint.X, intersectionCurve.HeadPoint.Z);