Index: dam engine/trunk/Xsds Liquid/DamSurfaceLine.xsd
===================================================================
diff -u
--- dam engine/trunk/Xsds Liquid/DamSurfaceLine.xsd	(revision 0)
+++ dam engine/trunk/Xsds Liquid/DamSurfaceLine.xsd	(revision 466)
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Created with Liquid XML Studio 1.0.8.0 (http://www.liquid-technologies.com) -->
+<xs:schema elementFormDefault="qualified" xmlns:xs="http://www.w3.org/2001/XMLSchema">
+  <xs:complexType name="SurfaceLine" />
+</xs:schema>
\ No newline at end of file
Index: dam engine/trunk/src/Deltares.DamEngine.Io/DamInput.cs
===================================================================
diff -u -r461 -r466
--- dam engine/trunk/src/Deltares.DamEngine.Io/DamInput.cs	(.../DamInput.cs)	(revision 461)
+++ dam engine/trunk/src/Deltares.DamEngine.Io/DamInput.cs	(.../DamInput.cs)	(revision 466)
@@ -24,6 +24,8 @@
         
         private Location[] locationsField;
         
+        private InputSurfaceLine[] surfaceLinesField;
+        
         private InputDamProjectType damProjectTypeField;
         
         /// <remarks/>
@@ -38,6 +40,17 @@
         }
         
         /// <remarks/>
+        [System.Xml.Serialization.XmlArrayItemAttribute("SurfaceLine", IsNullable=false)]
+        public InputSurfaceLine[] SurfaceLines {
+            get {
+                return this.surfaceLinesField;
+            }
+            set {
+                this.surfaceLinesField = value;
+            }
+        }
+        
+        /// <remarks/>
         [System.Xml.Serialization.XmlAttributeAttribute()]
         public InputDamProjectType DamProjectType {
             get {
@@ -943,7 +956,77 @@
     /// <remarks/>
     [System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "4.6.1055.0")]
     [System.SerializableAttribute()]
+    [System.Diagnostics.DebuggerStepThroughAttribute()]
+    [System.ComponentModel.DesignerCategoryAttribute("code")]
     [System.Xml.Serialization.XmlTypeAttribute(AnonymousType=true)]
+    public partial class InputSurfaceLine {
+        
+        private InputSurfaceLinePoint[] pointsField;
+        
+        /// <remarks/>
+        [System.Xml.Serialization.XmlArrayItemAttribute("Point", IsNullable=false)]
+        public InputSurfaceLinePoint[] Points {
+            get {
+                return this.pointsField;
+            }
+            set {
+                this.pointsField = value;
+            }
+        }
+    }
+    
+    /// <remarks/>
+    [System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "4.6.1055.0")]
+    [System.SerializableAttribute()]
+    [System.Diagnostics.DebuggerStepThroughAttribute()]
+    [System.ComponentModel.DesignerCategoryAttribute("code")]
+    [System.Xml.Serialization.XmlTypeAttribute(AnonymousType=true)]
+    public partial class InputSurfaceLinePoint {
+        
+        private double xField;
+        
+        private double zField;
+        
+        private int pointTypeField;
+        
+        /// <remarks/>
+        [System.Xml.Serialization.XmlAttributeAttribute()]
+        public double X {
+            get {
+                return this.xField;
+            }
+            set {
+                this.xField = value;
+            }
+        }
+        
+        /// <remarks/>
+        [System.Xml.Serialization.XmlAttributeAttribute()]
+        public double Z {
+            get {
+                return this.zField;
+            }
+            set {
+                this.zField = value;
+            }
+        }
+        
+        /// <remarks/>
+        [System.Xml.Serialization.XmlAttributeAttribute()]
+        public int PointType {
+            get {
+                return this.pointTypeField;
+            }
+            set {
+                this.pointTypeField = value;
+            }
+        }
+    }
+    
+    /// <remarks/>
+    [System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "4.6.1055.0")]
+    [System.SerializableAttribute()]
+    [System.Xml.Serialization.XmlTypeAttribute(AnonymousType=true)]
     public enum InputDamProjectType {
         
         /// <remarks/>
@@ -961,4 +1044,12 @@
         /// <remarks/>
         NWO,
     }
+    
+    /// <remarks/>
+    [System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "4.6.1055.0")]
+    [System.SerializableAttribute()]
+    [System.Diagnostics.DebuggerStepThroughAttribute()]
+    [System.ComponentModel.DesignerCategoryAttribute("code")]
+    public partial class SurfaceLine {
+    }
 }
Index: dam engine/trunk/Xsds Liquid/DamInput.xsd
===================================================================
diff -u -r416 -r466
--- dam engine/trunk/Xsds Liquid/DamInput.xsd	(.../DamInput.xsd)	(revision 416)
+++ dam engine/trunk/Xsds Liquid/DamInput.xsd	(.../DamInput.xsd)	(revision 466)
@@ -2,6 +2,7 @@
 <!-- Created with Liquid XML Studio 1.0.8.0 (http://www.liquid-technologies.com) -->
 <xs:schema elementFormDefault="qualified" xmlns:xs="http://www.w3.org/2001/XMLSchema">
   <xs:include schemaLocation=".\DamLocation.xsd" />
+  <xs:include schemaLocation=".\DamSurfaceLine.xsd" />
   <xs:complexType name="Input">
     <xs:sequence>
       <xs:element name="Locations">
@@ -11,6 +12,54 @@
           </xs:sequence>
         </xs:complexType>
       </xs:element>
+      <xs:element name="SurfaceLines">
+        <xs:complexType>
+          <xs:sequence>
+            <xs:element minOccurs="0" maxOccurs="unbounded" name="SurfaceLine">
+              <xs:complexType>
+                <xs:sequence>
+                  <xs:element name="Points">
+                    <xs:complexType>
+                      <xs:sequence>
+                        <xs:element minOccurs="2" maxOccurs="unbounded" name="Point">
+                          <xs:complexType>
+                            <xs:attribute name="X" type="xs:double" use="required" />
+                            <xs:attribute name="Z" type="xs:double" use="required" />
+                            <xs:attribute name="PointType" use="required">
+                              <xs:simpleType>
+                                <xs:restriction base="xs:int">
+                                  <xs:enumeration value="None" />
+                                  <xs:enumeration value="SurfaceLevelOutside" />
+                                  <xs:enumeration value="DikeToeAtRiver" />
+                                  <xs:enumeration value="ShoulderTopOutside" />
+                                  <xs:enumeration value="ShoulderBaseOutside" />
+                                  <xs:enumeration value="DikeTopAtRiver" />
+                                  <xs:enumeration value="DikeLine" />
+                                  <xs:enumeration value="TrafficLoadOutside" />
+                                  <xs:enumeration value="TrafficLoadInside" />
+                                  <xs:enumeration value="DikeTopAtPolder" />
+                                  <xs:enumeration value="ShoulderBaseInside" />
+                                  <xs:enumeration value="ShoulderTopInside" />
+                                  <xs:enumeration value="DikeToeAtPolder" />
+                                  <xs:enumeration value="DitchDikeSide" />
+                                  <xs:enumeration value="BottomDitchDikeSide" />
+                                  <xs:enumeration value="BottomDitchPolderSide" />
+                                  <xs:enumeration value="DitchPolderSide" />
+                                  <xs:enumeration value="SurfaceLevelInside" />
+                                </xs:restriction>
+                              </xs:simpleType>
+                            </xs:attribute>
+                          </xs:complexType>
+                        </xs:element>
+                      </xs:sequence>
+                    </xs:complexType>
+                  </xs:element>
+                </xs:sequence>
+              </xs:complexType>
+            </xs:element>
+          </xs:sequence>
+        </xs:complexType>
+      </xs:element>
     </xs:sequence>
     <xs:attribute name="DamProjectType" use="required">
       <xs:simpleType>