Index: Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.IO/HeightStructuresCharacteristicsCsvReader.cs
===================================================================
diff -u -rcf6492440ed1b8aea0531cec0670f2559b6c503f -r3bbcb9e79264c1031d399da357be326c48f4e5f4
--- Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.IO/HeightStructuresCharacteristicsCsvReader.cs	(.../HeightStructuresCharacteristicsCsvReader.cs)	(revision cf6492440ed1b8aea0531cec0670f2559b6c503f)
+++ Ringtoets/HeightStructures/src/Ringtoets.HeightStructures.IO/HeightStructuresCharacteristicsCsvReader.cs	(.../HeightStructuresCharacteristicsCsvReader.cs)	(revision 3bbcb9e79264c1031d399da357be326c48f4e5f4)
@@ -21,6 +21,9 @@
 
 using System;
 using System.Collections.Generic;
+using System.IO;
+using Core.Common.IO.Exceptions;
+using Core.Common.IO.Readers;
 using Core.Common.Utils;
 
 namespace Ringtoets.HeightStructures.IO
@@ -46,15 +49,27 @@
             filePath = path;
         }
 
+        /// <summary>
+        /// Reads the given file and extract all <see cref="StructuresParameterRow"/> from
+        /// it and organizes them based on location.
+        /// </summary>
+        /// <returns>Returns a dictionary with 'location ID' being the key and all associated
+        /// <see cref="StructuresParameterRow"/> that were read from the file.</returns>
+        /// <exception cref="CriticalFileReadException">File/directory cannot be found or 
+        /// some other I/O related problem occurred.</exception>
         public IDictionary<string, IList<StructuresParameterRow>> ReadAllData()
         {
-            // Validate file exists
-            // Read 1st line: Index header
-            // For every remaining line
+            using (StreamReader reader = StreamReaderHelper.InitializeStreamReader(filePath))
+            {
+                // Validate file exists
+                // Read 1st line: Index header
+                // For every remaining line
                 // Skip if empty
                 // Tokenize line
-                // 
-            return new Dictionary<string, IList<StructuresParameterRow>>();
+                // Parse token values into StructuresParameterRow
+                // Add StructuresParameterRow to correct location
+                return new Dictionary<string, IList<StructuresParameterRow>>();
+            }
         }
     }
 }
\ No newline at end of file