Index: DamEngine/trunk/src/Deltares.DamEngine.Calculators/PlLinesCreator/PlLinesCreator.cs
===================================================================
diff -u -r2145 -r2146
--- DamEngine/trunk/src/Deltares.DamEngine.Calculators/PlLinesCreator/PlLinesCreator.cs	(.../PlLinesCreator.cs)	(revision 2145)
+++ DamEngine/trunk/src/Deltares.DamEngine.Calculators/PlLinesCreator/PlLinesCreator.cs	(.../PlLinesCreator.cs)	(revision 2146)
@@ -116,7 +116,7 @@
             }
         }
 
-        private double GetHeadPl4(DamType damType)
+        private double GetHeadPl4()
         {
             double waterLevel = WaterLevelToUse();
             if (HeadInPlLine4 == null)
@@ -1356,7 +1356,7 @@
                     plLine = this.CreatePlLine3ByExpertKnowledge(HeadPl3Taking, this.ModelParametersForPlLines.DampingFactorPl3, slopeGradient);
                     break;
                 case PlLineType.Pl4:
-                    plLine = this.CreatePlLine4ByExpertKnowledge(GetHeadPl4(damType), this.ModelParametersForPlLines.DampingFactorPl4, slopeGradient);
+                    plLine = this.CreatePlLine4ByExpertKnowledge(GetHeadPl4(), this.ModelParametersForPlLines.DampingFactorPl4, slopeGradient);
                     break;
             }