Index: DamEngine/trunk/src/Deltares.DamEngine.Calculators.Tests/KernelWrappers/MacroStabilityInwards/UpliftVanGridCreatorTests.cs
===================================================================
diff -u -r5662 -r5669
--- DamEngine/trunk/src/Deltares.DamEngine.Calculators.Tests/KernelWrappers/MacroStabilityInwards/UpliftVanGridCreatorTests.cs	(.../UpliftVanGridCreatorTests.cs)	(revision 5662)
+++ DamEngine/trunk/src/Deltares.DamEngine.Calculators.Tests/KernelWrappers/MacroStabilityInwards/UpliftVanGridCreatorTests.cs	(.../UpliftVanGridCreatorTests.cs)	(revision 5669)
@@ -202,7 +202,7 @@
             Assert.That(upliftVanCalculationGrid.TangentLineZTop, Is.EqualTo(expectedZTop).Within(tolerance));
             Assert.That(upliftVanCalculationGrid.TangentLineZBottom, Is.EqualTo(expectedZBottom).Within(tolerance));
             Assert.That(upliftVanCalculationGrid.TangentLineCount, Is.EqualTo(expectedCount));
-            Assert.That(upliftVanCalculationGrid.TangentLineLevels, Is.Empty);
+            Assert.That(upliftVanCalculationGrid.TangentLineLevels, Has.Count.EqualTo(expectedCount));
         });
     }
    
Index: DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/MacroStabilityInwards/UpliftVanGridCreator.cs
===================================================================
diff -u -r5662 -r5669
--- DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/MacroStabilityInwards/UpliftVanGridCreator.cs	(.../UpliftVanGridCreator.cs)	(revision 5662)
+++ DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/MacroStabilityInwards/UpliftVanGridCreator.cs	(.../UpliftVanGridCreator.cs)	(revision 5669)
@@ -153,12 +153,15 @@
         bottomTangentLines = Math.Min(bottomTangentLines, surfaceLevel);
         double topTangentLines = bottomTangentLines;
         var tangentLinesCount = 1;
+        upliftVanCalculationGrid.TangentLineLevels.Add(topTangentLines);
         while (topTangentLines < surfaceLevel)
         {
             topTangentLines += distance;
+            upliftVanCalculationGrid.TangentLineLevels.Add(topTangentLines);
             tangentLinesCount++;
         }
         
+        upliftVanCalculationGrid.TangentLineLevels.Reverse();
         upliftVanCalculationGrid.TangentLineCount = tangentLinesCount;
         upliftVanCalculationGrid.TangentLineZTop = topTangentLines;
         upliftVanCalculationGrid.TangentLineZBottom = bottomTangentLines;
Index: DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/MacroStabilityInwards/BishopGridCreator.cs
===================================================================
diff -u -r5662 -r5669
--- DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/MacroStabilityInwards/BishopGridCreator.cs	(.../BishopGridCreator.cs)	(revision 5662)
+++ DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/MacroStabilityInwards/BishopGridCreator.cs	(.../BishopGridCreator.cs)	(revision 5669)
@@ -132,12 +132,15 @@
         bottomTangentLines = Math.Min(bottomTangentLines, surfaceLevel);
         double topTangentLines = bottomTangentLines;
         var tangentLinesCount = 1;
+        bishopCalculationGrid.TangentLineLevels.Add(topTangentLines);
         while (topTangentLines < surfaceLevel)
         {
             topTangentLines += distance;
+            bishopCalculationGrid.TangentLineLevels.Add(topTangentLines);
             tangentLinesCount++;
         }
 
+        bishopCalculationGrid.TangentLineLevels.Reverse();
         bishopCalculationGrid.TangentLineCount = tangentLinesCount;
         bishopCalculationGrid.TangentLineZTop = topTangentLines;
         bishopCalculationGrid.TangentLineZBottom = bottomTangentLines;
Index: DamEngine/trunk/src/Deltares.DamEngine.Calculators.Tests/KernelWrappers/MacroStabilityInwards/BishopGridCreatorTests.cs
===================================================================
diff -u -r5662 -r5669
--- DamEngine/trunk/src/Deltares.DamEngine.Calculators.Tests/KernelWrappers/MacroStabilityInwards/BishopGridCreatorTests.cs	(.../BishopGridCreatorTests.cs)	(revision 5662)
+++ DamEngine/trunk/src/Deltares.DamEngine.Calculators.Tests/KernelWrappers/MacroStabilityInwards/BishopGridCreatorTests.cs	(.../BishopGridCreatorTests.cs)	(revision 5669)
@@ -142,7 +142,7 @@
             Assert.That(bishopCalculationGrid.TangentLineZTop, Is.EqualTo(expectedZTop).Within(tolerance));
             Assert.That(bishopCalculationGrid.TangentLineZBottom, Is.EqualTo(expectedZBottom).Within(tolerance));
             Assert.That(bishopCalculationGrid.TangentLineCount, Is.EqualTo(expectedCount));
-            Assert.That(bishopCalculationGrid.TangentLineLevels, Is.Empty);
+            Assert.That(bishopCalculationGrid.TangentLineLevels, Has.Count.EqualTo(expectedCount));
         });
     }