Index: DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/Common/DamKernelInput.cs
===================================================================
diff -u -r1007 -r1024
--- DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/Common/DamKernelInput.cs	(.../DamKernelInput.cs)	(revision 1007)
+++ DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/Common/DamKernelInput.cs	(.../DamKernelInput.cs)	(revision 1024)
@@ -70,6 +70,16 @@
         public SoilGeometryProbability SubSoilScenario { get; set; }
 
         /// <summary>
+        /// The high river level
+        /// </summary>
+        public double RiverLevelHigh;
+
+        /// <summary>
+        /// The low river level
+        /// </summary>
+        public double? RiverLevelLow;
+
+        /// <summary>
         /// Gets or sets the dam failure mechanisme calculation specification.
         /// </summary>
         /// <value>
Index: DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/DamPipingSellmeijer4Forces/DamPipingSellmeijer4ForcesKernelWrapper.cs
===================================================================
diff -u -r909 -r1024
--- DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/DamPipingSellmeijer4Forces/DamPipingSellmeijer4ForcesKernelWrapper.cs	(.../DamPipingSellmeijer4ForcesKernelWrapper.cs)	(revision 909)
+++ DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/DamPipingSellmeijer4Forces/DamPipingSellmeijer4ForcesKernelWrapper.cs	(.../DamPipingSellmeijer4ForcesKernelWrapper.cs)	(revision 1024)
@@ -63,7 +63,7 @@
                 var soilProfile1D = damKernelInput.SubSoilScenario.SoilProfile1D;
                 var surfaceLine = damKernelInput.Location.SurfaceLine;
                 var location = damKernelInput.Location;
-                var riverLevel = damKernelInput.DesignScenario.RiverLevel;
+                double riverLevel = damKernelInput.RiverLevelHigh;
                 UpliftSituation upliftSituation;
                 var plLines = PlLinesHelper.CreatePlLines(location, soilProfile1D, riverLevel, out upliftSituation);
                 var upliftLocationDeterminator = new UpliftLocationDeterminator
Index: DamEngine/trunk/src/Deltares.DamEngine.Calculators/DikesDesign/DesignCalculator.cs
===================================================================
diff -u -r1017 -r1024
--- DamEngine/trunk/src/Deltares.DamEngine.Calculators/DikesDesign/DesignCalculator.cs	(.../DesignCalculator.cs)	(revision 1017)
+++ DamEngine/trunk/src/Deltares.DamEngine.Calculators/DikesDesign/DesignCalculator.cs	(.../DesignCalculator.cs)	(revision 1024)
@@ -71,6 +71,8 @@
                         damKernelInput.SubSoilScenario = soiProfileProbability;
                         damKernelInput.DesignScenario = location.Scenarios[designScenarioIndex];
                         damKernelInput.DamFailureMechanismeCalculationSpecification = damProjectData.DamProjectCalculationSpecification.CurrentSpecification;
+                        damKernelInput.RiverLevelHigh = damKernelInput.DesignScenario.RiverLevel;
+                        damKernelInput.RiverLevelLow = damKernelInput.DesignScenario.RiverLevelLow;
                         AnalysisType analysisType = DamProjectCalculationSpecification.SelectedAnalysisType;
                         SynchronizeScenarioDataWithLocationData(damKernelInput);
                         IKernelDataInput kernelDataInput;
Index: DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/DamPipingSellmeijerVnk/DamPipingSellmeijerVnkKernelWrapper.cs
===================================================================
diff -u -r912 -r1024
--- DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/DamPipingSellmeijerVnk/DamPipingSellmeijerVnkKernelWrapper.cs	(.../DamPipingSellmeijerVnkKernelWrapper.cs)	(revision 912)
+++ DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/DamPipingSellmeijerVnk/DamPipingSellmeijerVnkKernelWrapper.cs	(.../DamPipingSellmeijerVnkKernelWrapper.cs)	(revision 1024)
@@ -62,7 +62,7 @@
                 var soilProfile1D = damKernelInput.SubSoilScenario.SoilProfile1D;
                 var surfaceLine = damKernelInput.Location.SurfaceLine;
                 var location = damKernelInput.Location;
-                var riverLevel = damKernelInput.DesignScenario.RiverLevel;
+                double riverLevel = damKernelInput.RiverLevelHigh;
                 UpliftSituation upliftSituation;
                 var plLines = PlLinesHelper.CreatePlLines(location, soilProfile1D, riverLevel, out upliftSituation);
                 var upliftLocationDeterminator = new UpliftLocationDeterminator
Index: DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/DamPipingBligh/DamPipingBlighKernelWrapper.cs
===================================================================
diff -u -r909 -r1024
--- DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/DamPipingBligh/DamPipingBlighKernelWrapper.cs	(.../DamPipingBlighKernelWrapper.cs)	(revision 909)
+++ DamEngine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/DamPipingBligh/DamPipingBlighKernelWrapper.cs	(.../DamPipingBlighKernelWrapper.cs)	(revision 1024)
@@ -69,7 +69,7 @@
                 var soilProfile1D = damKernelInput.SubSoilScenario.SoilProfile1D;
                 var surfaceLine = damKernelInput.Location.SurfaceLine;
                 var location = damKernelInput.Location;
-                double riverLevel = damKernelInput.DesignScenario.RiverLevel;
+                double riverLevel = damKernelInput.RiverLevelHigh;
                 UpliftSituation upliftSituation;
                 var plLines = PlLinesHelper.CreatePlLines(location, soilProfile1D, riverLevel, out upliftSituation);
                 UpliftLocationDeterminator upliftLocationDeterminator = new UpliftLocationDeterminator