Index: Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.KernelWrapper/Calculators/UpliftVan/UpliftVanCalculator.cs
===================================================================
diff -u -r197f5481b023a6f8609cf81bb5f7b6a205ea3439 -r6139d8deb7b8f83cd06a4534f04ed18ecbada3b6
--- Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.KernelWrapper/Calculators/UpliftVan/UpliftVanCalculator.cs	(.../UpliftVanCalculator.cs)	(revision 197f5481b023a6f8609cf81bb5f7b6a205ea3439)
+++ Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.KernelWrapper/Calculators/UpliftVan/UpliftVanCalculator.cs	(.../UpliftVanCalculator.cs)	(revision 6139d8deb7b8f83cd06a4534f04ed18ecbada3b6)
@@ -117,7 +117,7 @@
             upliftVanKernel.SoilModel = SoilModelCreator.Create(soils);
             upliftVanKernel.SoilProfile = SoilProfileCreator.Create(input.SoilProfile, layersWithSoils);
             upliftVanKernel.Location = StabilityLocationCreator.Create(input);
-            upliftVanKernel.SurfaceLine = SurfaceLineCreator.Create(input.SurfaceLine);
+            upliftVanKernel.SurfaceLine = SurfaceLineCreator.Create(input.SurfaceLine, input.LandwardDirection);
             upliftVanKernel.SlipPlaneUpliftVan = SlipPlaneUpliftVanCreator.Create(input.SlipPlane);
             upliftVanKernel.GridAutomaticDetermined = input.SlipPlane.GridAutomaticDetermined;
             upliftVanKernel.CreateZones = input.CreateZones;
Index: Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.KernelWrapper/Creators/Input/SurfaceLineCreator.cs
===================================================================
diff -u -r5384132a6cf39e2cc34d3eeac2becaefa2a349f1 -r6139d8deb7b8f83cd06a4534f04ed18ecbada3b6
--- Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.KernelWrapper/Creators/Input/SurfaceLineCreator.cs	(.../SurfaceLineCreator.cs)	(revision 5384132a6cf39e2cc34d3eeac2becaefa2a349f1)
+++ Ringtoets/MacroStabilityInwards/src/Ringtoets.MacroStabilityInwards.KernelWrapper/Creators/Input/SurfaceLineCreator.cs	(.../SurfaceLineCreator.cs)	(revision 6139d8deb7b8f83cd06a4534f04ed18ecbada3b6)
@@ -21,9 +21,11 @@
 
 using System;
 using System.Collections.Generic;
+using System.ComponentModel;
 using System.Linq;
 using Core.Common.Base.Geometry;
 using Deltares.WTIStability.Data.Geo;
+using Ringtoets.MacroStabilityInwards.KernelWrapper.Calculators.UpliftVan.Input;
 using Ringtoets.MacroStabilityInwards.KernelWrapper.Kernels.UpliftVan;
 using Ringtoets.MacroStabilityInwards.Primitives;
 
@@ -40,9 +42,14 @@
         /// </summary>
         /// <param name="surfaceLine">The <see cref="MacroStabilityInwardsSurfaceLine"/> from
         /// which to take the information.</param>
+        /// <param name="landwardDirection">The landward direction of the surface line.</param>
         /// <returns>A new <see cref="SurfaceLine2"/> with information taken from the <see cref="surfaceLine"/>.</returns>
         /// <exception cref="ArgumentNullException">Thrown when <paramref name="surfaceLine"/> is <c>null</c>.</exception>
-        public static SurfaceLine2 Create(MacroStabilityInwardsSurfaceLine surfaceLine)
+        /// <exception cref="InvalidEnumArgumentException">Thrown when <paramref name="landwardDirection"/>
+        /// is an invalid value.</exception>
+        /// <exception cref="NotSupportedException">Thrown when <paramref name="landwardDirection"/>
+        /// is a valid value but unsupported.</exception>
+        public static SurfaceLine2 Create(MacroStabilityInwardsSurfaceLine surfaceLine, UpliftVanLandwardDirection landwardDirection)
         {
             if (surfaceLine == null)
             {
@@ -52,7 +59,7 @@
             var wtiSurfaceLine = new SurfaceLine2
             {
                 Name = surfaceLine.Name,
-                LandwardDirection = LandwardDirection.PositiveX
+                LandwardDirection = ConvertLandwardDirection(landwardDirection)
             };
 
             if (surfaceLine.Points.Any())
@@ -72,6 +79,35 @@
             return wtiSurfaceLine;
         }
 
+        /// <summary>
+        /// Converts a <see cref="UpliftVanLandwardDirection"/> into a <see cref="LandwardDirection"/>.
+        /// </summary>
+        /// <param name="landwardDirection">The <see cref="UpliftVanLandwardDirection"/> to convert.</param>
+        /// <returns>A <see cref="LandwardDirection"/> based on <paramref name="landwardDirection"/>.</returns>
+        /// <exception cref="InvalidEnumArgumentException">Thrown when <paramref name="landwardDirection"/>
+        /// is an invalid value.</exception>
+        /// <exception cref="NotSupportedException">Thrown when <paramref name="landwardDirection"/>
+        /// is a valid value but unsupported.</exception>
+        private static LandwardDirection ConvertLandwardDirection(UpliftVanLandwardDirection landwardDirection)
+        {
+            if (!Enum.IsDefined(typeof(UpliftVanLandwardDirection), landwardDirection))
+            {
+                throw new InvalidEnumArgumentException(nameof(landwardDirection),
+                                                       (int) landwardDirection,
+                                                       typeof(UpliftVanLandwardDirection));
+            }
+
+            switch (landwardDirection)
+            {
+                case UpliftVanLandwardDirection.PositiveX:
+                    return LandwardDirection.PositiveX;
+                case UpliftVanLandwardDirection.NegativeX:
+                    return LandwardDirection.NegativeX;
+                default:
+                    throw new NotSupportedException();
+            }
+        }
+
         private static IEnumerable<CharacteristicPoint> CreateCharacteristicPoints(MacroStabilityInwardsSurfaceLine surfaceLine, GeometryPoint[] geometryPoints)
         {
             var characteristicPoints = new List<CharacteristicPoint>();
Index: Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.KernelWrapper.Test/Calculators/UpliftVan/UpliftVanCalculatorTest.cs
===================================================================
diff -u -r197f5481b023a6f8609cf81bb5f7b6a205ea3439 -r6139d8deb7b8f83cd06a4534f04ed18ecbada3b6
--- Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.KernelWrapper.Test/Calculators/UpliftVan/UpliftVanCalculatorTest.cs	(.../UpliftVanCalculatorTest.cs)	(revision 197f5481b023a6f8609cf81bb5f7b6a205ea3439)
+++ Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.KernelWrapper.Test/Calculators/UpliftVan/UpliftVanCalculatorTest.cs	(.../UpliftVanCalculatorTest.cs)	(revision 6139d8deb7b8f83cd06a4534f04ed18ecbada3b6)
@@ -140,7 +140,7 @@
             UpliftVanKernelInputAssert.AssertSoilModels(SoilModelCreator.Create(soils), upliftVanKernel.SoilModel);
             UpliftVanKernelInputAssert.AssertSoilProfiles(SoilProfileCreator.Create(input.SoilProfile, layersWithSoils), upliftVanKernel.SoilProfile);
             UpliftVanKernelInputAssert.AssertStabilityLocations(StabilityLocationCreator.Create(input), upliftVanKernel.Location);
-            UpliftVanKernelInputAssert.AssertSurfaceLines(SurfaceLineCreator.Create(input.SurfaceLine), upliftVanKernel.SurfaceLine);
+            UpliftVanKernelInputAssert.AssertSurfaceLines(SurfaceLineCreator.Create(input.SurfaceLine, input.LandwardDirection), upliftVanKernel.SurfaceLine);
             UpliftVanKernelInputAssert.AssertSlipPlanesUpliftVan(SlipPlaneUpliftVanCreator.Create(input.SlipPlane), upliftVanKernel.SlipPlaneUpliftVan);
 
             Assert.AreEqual(input.SlipPlane.GridAutomaticDetermined, upliftVanKernel.GridAutomaticDetermined);
@@ -192,7 +192,7 @@
             // Assert
             var exception = Assert.Throws<UpliftVanCalculatorException>(test);
             Assert.IsInstanceOf<UpliftVanKernelWrapperException>(exception.InnerException);
-            Assert.AreEqual(exception.InnerException.Message, exception.Message);            
+            Assert.AreEqual(exception.InnerException.Message, exception.Message);
         }
 
         [Test]
Index: Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.KernelWrapper.Test/Creators/Input/SurfaceLineCreatorTest.cs
===================================================================
diff -u -r5384132a6cf39e2cc34d3eeac2becaefa2a349f1 -r6139d8deb7b8f83cd06a4534f04ed18ecbada3b6
--- Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.KernelWrapper.Test/Creators/Input/SurfaceLineCreatorTest.cs	(.../SurfaceLineCreatorTest.cs)	(revision 5384132a6cf39e2cc34d3eeac2becaefa2a349f1)
+++ Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.KernelWrapper.Test/Creators/Input/SurfaceLineCreatorTest.cs	(.../SurfaceLineCreatorTest.cs)	(revision 6139d8deb7b8f83cd06a4534f04ed18ecbada3b6)
@@ -25,6 +25,7 @@
 using Core.Common.TestUtil;
 using Deltares.WTIStability.Data.Geo;
 using NUnit.Framework;
+using Ringtoets.MacroStabilityInwards.KernelWrapper.Calculators.UpliftVan.Input;
 using Ringtoets.MacroStabilityInwards.KernelWrapper.Creators.Input;
 using Ringtoets.MacroStabilityInwards.Primitives;
 
@@ -37,7 +38,7 @@
         public void Create_SurfaceLineNull_ThrowsArgumentNullException()
         {
             // Call
-            TestDelegate call = () => SurfaceLineCreator.Create(null);
+            TestDelegate call = () => SurfaceLineCreator.Create(null, UpliftVanLandwardDirection.PositiveX);
 
             // Assert
             var exception = Assert.Throws<ArgumentNullException>(call);
@@ -52,7 +53,7 @@
             var surfaceLine = new MacroStabilityInwardsSurfaceLine(name);
 
             // Call
-            SurfaceLine2 actual = SurfaceLineCreator.Create(surfaceLine);
+            SurfaceLine2 actual = SurfaceLineCreator.Create(surfaceLine, UpliftVanLandwardDirection.PositiveX);
 
             // Assert
             AssertGeneralValues(name, actual);
@@ -73,7 +74,7 @@
             });
 
             // Call
-            SurfaceLine2 actual = SurfaceLineCreator.Create(surfaceLine);
+            SurfaceLine2 actual = SurfaceLineCreator.Create(surfaceLine, UpliftVanLandwardDirection.PositiveX);
 
             // Assert
             AssertGeneralValues(name, actual);
@@ -97,7 +98,7 @@
             });
 
             // Call
-            SurfaceLine2 actual = SurfaceLineCreator.Create(surfaceLine);
+            SurfaceLine2 actual = SurfaceLineCreator.Create(surfaceLine, UpliftVanLandwardDirection.PositiveX);
 
             // Assert
             AssertGeneralValues(name, actual);
@@ -123,7 +124,7 @@
             });
 
             // Call
-            SurfaceLine2 actual = SurfaceLineCreator.Create(surfaceLine);
+            SurfaceLine2 actual = SurfaceLineCreator.Create(surfaceLine, UpliftVanLandwardDirection.PositiveX);
 
             // Assert
             AssertGeneralValues(name, actual);
@@ -154,7 +155,7 @@
             });
 
             // Call
-            SurfaceLine2 actual = SurfaceLineCreator.Create(surfaceLine);
+            SurfaceLine2 actual = SurfaceLineCreator.Create(surfaceLine, UpliftVanLandwardDirection.PositiveX);
 
             // Assert
             AssertGeneralValues(name, actual);
@@ -210,7 +211,7 @@
             surfaceLine.SetDikeTopAtRiverAt(geometry[13]);
 
             // Call
-            SurfaceLine2 actual = SurfaceLineCreator.Create(surfaceLine);
+            SurfaceLine2 actual = SurfaceLineCreator.Create(surfaceLine, UpliftVanLandwardDirection.PositiveX);
 
             // Assert
             AssertGeneralValues(name, actual);
Index: Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.KernelWrapper.TestUtil/Kernels/UpliftVan/Input/UpliftVanKernelInputAssert.cs
===================================================================
diff -u -r3096dd0aeecf478a662cae38533233949c76e103 -r6139d8deb7b8f83cd06a4534f04ed18ecbada3b6
--- Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.KernelWrapper.TestUtil/Kernels/UpliftVan/Input/UpliftVanKernelInputAssert.cs	(.../UpliftVanKernelInputAssert.cs)	(revision 3096dd0aeecf478a662cae38533233949c76e103)
+++ Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.KernelWrapper.TestUtil/Kernels/UpliftVan/Input/UpliftVanKernelInputAssert.cs	(.../UpliftVanKernelInputAssert.cs)	(revision 6139d8deb7b8f83cd06a4534f04ed18ecbada3b6)
@@ -72,6 +72,8 @@
         public static void AssertStabilityLocations(StabilityLocation expected, StabilityLocation actual)
         {
             Assert.AreEqual(expected.DikeSoilScenario, actual.DikeSoilScenario);
+            Assert.AreEqual(expected.WaternetCreationMode, actual.WaternetCreationMode);
+            Assert.AreEqual(expected.PlLineCreationMethod, actual.PlLineCreationMethod);
             Assert.AreEqual(expected.WaterLevelRiver, actual.WaterLevelRiver);
             Assert.AreEqual(expected.WaterLevelRiverAverage, actual.WaterLevelRiverAverage);
             Assert.AreEqual(expected.WaterLevelPolder, actual.WaterLevelPolder);
@@ -94,7 +96,6 @@
             Assert.AreEqual(expected.LeakageLengthInwardsPl3, actual.LeakageLengthInwardsPl3);
             Assert.AreEqual(expected.LeakageLengthOutwardsPl4, actual.LeakageLengthOutwardsPl4);
             Assert.AreEqual(expected.LeakageLengthInwardsPl4, actual.LeakageLengthInwardsPl4);
-            Assert.AreEqual(expected.WaternetCreationMode, actual.WaternetCreationMode);
         }
 
         /// <summary>
@@ -107,6 +108,7 @@
         public static void AssertSurfaceLines(SurfaceLine2 expected, SurfaceLine2 actual)
         {
             Assert.AreEqual(expected.Name, actual.Name);
+            Assert.AreEqual(expected.LandwardDirection, actual.LandwardDirection);
             AssertGeometryPointStrings(expected.Geometry, actual.Geometry);
             AssertCharacteristicPointSets(expected.CharacteristicPoints, actual.CharacteristicPoints);
         }
@@ -330,6 +332,7 @@
             Assert.AreEqual(expected.TangentLineZTop, actual.TangentLineZTop);
             Assert.AreEqual(expected.TangentLineZBottom, actual.TangentLineZBottom);
             Assert.AreEqual(expected.TangentLineNumber, actual.TangentLineNumber);
+            Assert.AreEqual(expected.MaxSpacingBetweenBoundaries, actual.MaxSpacingBetweenBoundaries);
         }
     }
 }
\ No newline at end of file