Index: dam engine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/DamPipingBligh/DamPipingBlighKernelWrapper.cs
===================================================================
diff -u -r640 -r647
--- dam engine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/DamPipingBligh/DamPipingBlighKernelWrapper.cs	(.../DamPipingBlighKernelWrapper.cs)	(revision 640)
+++ dam engine/trunk/src/Deltares.DamEngine.Calculators/KernelWrappers/DamPipingBligh/DamPipingBlighKernelWrapper.cs	(.../DamPipingBlighKernelWrapper.cs)	(revision 647)
@@ -30,55 +30,59 @@
         /// <returns></returns>
         public IKernelDataInput Prepare(DamKernelInput damKernelInput)
         {
-            var damPipingBlighInput = new DamPipingBlighInput();
-
-            var soilProfile1D = damKernelInput.SubSoilScenario.SoilProfile1D;
-            var surfaceLine = damKernelInput.Location.SurfaceLine;
-            var location = damKernelInput.Location;
-            double riverLevel = damKernelInput.DesignScenario.RiverLevel;
-            var plLines = DamPipingHelper.CreatePlLines(location, soilProfile1D, riverLevel);
-            UpliftLocationDeterminator upliftLocationDeterminator = new UpliftLocationDeterminator
+            if (damKernelInput.SubSoilScenario.SegmentFailureMechanismType == FailureMechanismSystemType.Piping)
             {
-                PLLines = plLines,
-                SoilProfile = soilProfile1D,
-                SurfaceLine = surfaceLine,
-                DikeEmbankmentMaterial = location.GetDikeEmbankmentSoil(),
-                XSoilGeometry2DOrigin = location.XSoilGeometry2DOrigin
-            };
-            var upliftLocationAndResult = upliftLocationDeterminator.GetLocationAndResult(damKernelInput.DesignScenario.GetUpliftCriterionPiping(null));
-            bool isUplift = (upliftLocationAndResult != null);
-            double xEntry = surfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.DikeToeAtRiver).X;
-            double xExit = 0.0;
-            double surfaceLevel = 0.0;
-            double d70 = 0.0;
-            double dCoverLayer = 0.0;
-            if (upliftLocationAndResult != null)
-            {
-                xExit = upliftLocationAndResult.X;
-                surfaceLevel = surfaceLine.Geometry.GetZatX(upliftLocationAndResult.X);
-                SoilLayer1D heaveLayer = soilProfile1D.GetLayerWithName(upliftLocationAndResult.LayerWhereUpliftOccuresId);
-                d70 = factorMeterToMicroMeter * heaveLayer.Soil.DiameterD70;
-                var topLevelAquifer = soilProfile1D.GetLayerWithName(upliftLocationAndResult.LayerWhereUpliftOccuresId).TopLevel;
-                dCoverLayer = DamPipingHelper.DetermineHeightCoverLayer(topLevelAquifer, surfaceLevel);
+                var damPipingBlighInput = new DamPipingBlighInput();
+
+                var soilProfile1D = damKernelInput.SubSoilScenario.SoilProfile1D;
+                var surfaceLine = damKernelInput.Location.SurfaceLine;
+                var location = damKernelInput.Location;
+                double riverLevel = damKernelInput.DesignScenario.RiverLevel;
+                var plLines = DamPipingHelper.CreatePlLines(location, soilProfile1D, riverLevel);
+                UpliftLocationDeterminator upliftLocationDeterminator = new UpliftLocationDeterminator
+                {
+                    PLLines = plLines,
+                    SoilProfile = soilProfile1D,
+                    SurfaceLine = surfaceLine,
+                    DikeEmbankmentMaterial = location.GetDikeEmbankmentSoil(),
+                    XSoilGeometry2DOrigin = location.XSoilGeometry2DOrigin
+                };
+                var upliftLocationAndResult = upliftLocationDeterminator.GetLocationAndResult(damKernelInput.DesignScenario.GetUpliftCriterionPiping(null));
+                bool isUplift = (upliftLocationAndResult != null);
+                double xEntry = surfaceLine.CharacteristicPoints.GetGeometryPoint(CharacteristicPointType.DikeToeAtRiver).X;
+                double xExit = 0.0;
+                double surfaceLevel = 0.0;
+                double d70 = 0.0;
+                double dCoverLayer = 0.0;
+                if (upliftLocationAndResult != null)
+                {
+                    xExit = upliftLocationAndResult.X;
+                    surfaceLevel = surfaceLine.Geometry.GetZatX(upliftLocationAndResult.X);
+                    SoilLayer1D heaveLayer = soilProfile1D.GetLayerWithName(upliftLocationAndResult.LayerWhereUpliftOccuresId);
+                    d70 = factorMeterToMicroMeter * heaveLayer.Soil.DiameterD70;
+                    var topLevelAquifer = soilProfile1D.GetLayerWithName(upliftLocationAndResult.LayerWhereUpliftOccuresId).TopLevel;
+                    dCoverLayer = DamPipingHelper.DetermineHeightCoverLayer(topLevelAquifer, surfaceLevel);
+                }
+                double seepageLength = xExit - xEntry;
+                damPipingBlighInput.HRiver = riverLevel;
+                // Reference level is highest value of surfaceLevel or PolderLevel
+                // Uit TR Zandmeevoerende wellen (1999): "Het verval dH is gelijk aan het verschil tussen buitenwaterstand (het ontwerppeil(OP)) 
+                // bij zeedijken en de maatgevende hoogwaterstand (MHW bij rivierdijken) en de waterstand binnendijks ter plaatse van het uittredepunt, 
+                // rekening houdend met zeespiegelrijzing etc.(zie paragraaf 3.7.2). In dien ter plaatse van het uittreepunt of de opbarstlocatie 
+                // geen vrije waterstand heerst kan gerekend worden met het maaiveldniveau, rekening houdend met eventuele maaiveld daling (zie paragraaf 3.7.2)."
+                var referenceLevel = Math.Max(location.PolderLevel, surfaceLevel);
+                return new DamPipingBlighInput()
+                {
+                    HRiver = riverLevel,
+                    HExit = referenceLevel,
+                    Rc = defaultFluidisationGradient,
+                    DTotal = dCoverLayer,
+                    SeepageLength = seepageLength,
+                    D70 = d70,
+                    IsUplift = isUplift
+                };
             }
-            double seepageLength = xExit - xEntry;
-            damPipingBlighInput.HRiver = riverLevel;
-            // Reference level is highest value of surfaceLevel or PolderLevel
-            // Uit TR Zandmeevoerende wellen (1999): "Het verval dH is gelijk aan het verschil tussen buitenwaterstand (het ontwerppeil(OP)) 
-            // bij zeedijken en de maatgevende hoogwaterstand (MHW bij rivierdijken) en de waterstand binnendijks ter plaatse van het uittredepunt, 
-            // rekening houdend met zeespiegelrijzing etc.(zie paragraaf 3.7.2). In dien ter plaatse van het uittreepunt of de opbarstlocatie 
-            // geen vrije waterstand heerst kan gerekend worden met het maaiveldniveau, rekening houdend met eventuele maaiveld daling (zie paragraaf 3.7.2)."
-            var referenceLevel = Math.Max(location.PolderLevel, surfaceLevel);
-            return new DamPipingBlighInput()
-            {
-                HRiver = riverLevel,
-                HExit = referenceLevel,
-                Rc = defaultFluidisationGradient,
-                DTotal = dCoverLayer,
-                SeepageLength = seepageLength,
-                D70 = d70,
-                IsUplift = isUplift
-            };
+            return null;
         }
 
         /// <summary>