Index: Application/Ringtoets/src/Application.Ringtoets.Storage/Application.Ringtoets.Storage.csproj
===================================================================
diff -u -r993abad2c25b543f2fce10da1646f98da880a54b -rdb71c07ce0e920be557d203f3e822443c9fe34c4
--- Application/Ringtoets/src/Application.Ringtoets.Storage/Application.Ringtoets.Storage.csproj	(.../Application.Ringtoets.Storage.csproj)	(revision 993abad2c25b543f2fce10da1646f98da880a54b)
+++ Application/Ringtoets/src/Application.Ringtoets.Storage/Application.Ringtoets.Storage.csproj	(.../Application.Ringtoets.Storage.csproj)	(revision db71c07ce0e920be557d203f3e822443c9fe34c4)
@@ -377,6 +377,7 @@
     <Compile Include="Read\ClosingStructures\ClosingStructuresFailureMechanismMetaEntityReadExtensions.cs" />
     <Compile Include="Read\DuneErosion\DuneErosionFailureMechanismMetaEntityReadExtensions.cs" />
     <Compile Include="Create\DuneErosion\DuneLocationCalculationCollectionCreateExtensions.cs" />
+    <Compile Include="Read\DuneErosion\DuneLocationCalculationCollectionEntityReadExtensions.cs" />
     <Compile Include="Read\DuneErosion\DuneLocationCalculationEntityReadExtensions.cs" />
     <Compile Include="Read\DuneErosion\DuneLocationEntityReadExtensions.cs" />
     <Compile Include="Read\DuneErosion\DuneLocationOutputEntityReadExtensions.cs" />
Index: Application/Ringtoets/src/Application.Ringtoets.Storage/Read/DuneErosion/DuneLocationCalculationCollectionEntityReadExtensions.cs
===================================================================
diff -u
--- Application/Ringtoets/src/Application.Ringtoets.Storage/Read/DuneErosion/DuneLocationCalculationCollectionEntityReadExtensions.cs	(revision 0)
+++ Application/Ringtoets/src/Application.Ringtoets.Storage/Read/DuneErosion/DuneLocationCalculationCollectionEntityReadExtensions.cs	(revision db71c07ce0e920be557d203f3e822443c9fe34c4)
@@ -0,0 +1,76 @@
+// Copyright (C) Stichting Deltares 2017. All rights reserved.
+//
+// This file is part of Ringtoets.
+//
+// Ringtoets is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+// All names, logos, and references to "Deltares" are registered trademarks of
+// Stichting Deltares and remain full property of Stichting Deltares at all times.
+// All rights reserved.
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Application.Ringtoets.Storage.DbContext;
+using Ringtoets.DuneErosion.Data;
+
+namespace Application.Ringtoets.Storage.Read.DuneErosion
+{
+    /// <summary>
+    /// This class defines extension methods for read operations for a collection of 
+    /// <see cref="DuneLocationCalculation"/> based on the <see cref="DuneLocationCalculationCollectionEntity"/>.
+    /// </summary>
+    internal static class DuneLocationCalculationCollectionEntityReadExtensions
+    {
+        /// <summary>
+        /// Reads the <see cref="DuneLocationCalculationCollectionEntity"/> and uses the information 
+        /// to update a collection of <see cref="DuneLocationCalculation"/>.
+        /// </summary>
+        /// <param name="entity">The <see cref="HydraulicLocationCalculationEntity"/> to update the 
+        /// <see cref="DuneLocationCalculation"/>.</param>
+        /// <param name="calculations">The target of the read operation.</param>
+        /// <param name="collector">The object keeping track of the read operations.</param>
+        /// <exception cref="ArgumentNullException">Thrown when any parameter is <c>null</c>.</exception>
+        internal static void Read(this DuneLocationCalculationCollectionEntity entity,
+                                  IEnumerable<DuneLocationCalculation> calculations,
+                                  ReadConversionCollector collector)
+        {
+            if (entity == null)
+            {
+                throw new ArgumentNullException(nameof(entity));
+            }
+
+            if (calculations == null)
+            {
+                throw new ArgumentNullException(nameof(calculations));
+            }
+
+            if (collector == null)
+            {
+                throw new ArgumentNullException(nameof(collector));
+            }
+
+            Dictionary<DuneLocation, DuneLocationCalculation> calculationsLookup = 
+                calculations.ToDictionary(calc => calc.DuneLocation, calc => calc);
+
+            foreach (DuneLocationCalculationEntity calculationEntity in entity.DuneLocationCalculationEntities)
+            {
+                DuneLocation duneLocation = collector.Get(calculationEntity.DuneLocationEntity);
+                DuneLocationCalculation calculation = calculationsLookup[duneLocation];
+                
+                calculationEntity.Read(calculation);
+            }
+        }
+    }
+}
\ No newline at end of file
Index: Application/Ringtoets/test/Application.Ringtoets.Storage.Test/Application.Ringtoets.Storage.Test.csproj
===================================================================
diff -u -r993abad2c25b543f2fce10da1646f98da880a54b -rdb71c07ce0e920be557d203f3e822443c9fe34c4
--- Application/Ringtoets/test/Application.Ringtoets.Storage.Test/Application.Ringtoets.Storage.Test.csproj	(.../Application.Ringtoets.Storage.Test.csproj)	(revision 993abad2c25b543f2fce10da1646f98da880a54b)
+++ Application/Ringtoets/test/Application.Ringtoets.Storage.Test/Application.Ringtoets.Storage.Test.csproj	(.../Application.Ringtoets.Storage.Test.csproj)	(revision db71c07ce0e920be557d203f3e822443c9fe34c4)
@@ -96,6 +96,7 @@
     <Compile Include="Read\ClosingStructures\ClosingStructuresCalculationEntityReadExtensionsTest.cs" />
     <Compile Include="Read\ClosingStructures\ClosingStructuresFailureMechanismMetaEntityReadExtensionsTest.cs" />
     <Compile Include="Read\DuneErosion\DuneErosionFailureMechanismMetaEntityReadExtensionsTest.cs" />
+    <Compile Include="Read\DuneErosion\DuneLocationCalculationCollectionEntityReadExtensionsTest.cs" />
     <Compile Include="Read\DuneErosion\DuneLocationCalculationEntityReadExtensionsTest.cs" />
     <Compile Include="Read\DuneErosion\DuneLocationEntityReadExtensionsTest.cs" />
     <Compile Include="Read\DuneErosion\DuneLocationOutputEntityReadExtensionsTest.cs" />
Index: Application/Ringtoets/test/Application.Ringtoets.Storage.Test/Read/DuneErosion/DuneLocationCalculationCollectionEntityReadExtensionsTest.cs
===================================================================
diff -u
--- Application/Ringtoets/test/Application.Ringtoets.Storage.Test/Read/DuneErosion/DuneLocationCalculationCollectionEntityReadExtensionsTest.cs	(revision 0)
+++ Application/Ringtoets/test/Application.Ringtoets.Storage.Test/Read/DuneErosion/DuneLocationCalculationCollectionEntityReadExtensionsTest.cs	(revision db71c07ce0e920be557d203f3e822443c9fe34c4)
@@ -0,0 +1,139 @@
+// Copyright (C) Stichting Deltares 2017. All rights reserved.
+//
+// This file is part of Ringtoets.
+//
+// Ringtoets is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+// All names, logos, and references to "Deltares" are registered trademarks of
+// Stichting Deltares and remain full property of Stichting Deltares at all times.
+// All rights reserved.
+
+using System;
+using System.Linq;
+using Application.Ringtoets.Storage.DbContext;
+using Application.Ringtoets.Storage.Read;
+using Application.Ringtoets.Storage.Read.DuneErosion;
+using NUnit.Framework;
+using Ringtoets.DuneErosion.Data;
+using Ringtoets.DuneErosion.Data.TestUtil;
+
+namespace Application.Ringtoets.Storage.Test.Read.DuneErosion
+{
+    [TestFixture]
+    public class DuneLocationCalculationCollectionEntityReadExtensionsTest
+    {
+        [Test]
+        public void Read_EntityNull_ThrowsArgumentNullException()
+        {
+            // Call
+            TestDelegate call = () =>
+                ((DuneLocationCalculationCollectionEntity) null).Read(Enumerable.Empty<DuneLocationCalculation>(),
+                                                                      new ReadConversionCollector());
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(call);
+            Assert.AreEqual("entity", exception.ParamName);
+        }
+
+        [Test]
+        public void Read_CalculationsNull_ThrowsArgumentNullException()
+        {
+            // Setup
+            var entity = new DuneLocationCalculationCollectionEntity();
+
+            // Call
+            TestDelegate call = () => entity.Read(null, new ReadConversionCollector());
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(call);
+            Assert.AreEqual("calculations", exception.ParamName);
+        }
+
+        [Test]
+        public void Read_CollectorNull_ThrowsArgumentNullException()
+        {
+            // Setup
+            var entity = new DuneLocationCalculationCollectionEntity();
+
+            // Call
+            TestDelegate call = () => entity.Read(Enumerable.Empty<DuneLocationCalculation>(),
+                                                  null);
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(call);
+            Assert.AreEqual("collector", exception.ParamName);
+        }
+
+        [Test]
+        public void Read_EntityWithValidValues_SetsCalculationsWithExpectedValues()
+        {
+            // Setup
+            DuneLocationEntity duneLocationEntityOne = CreateDuneLocationEntity();
+            var calculationEntityWithoutOutput = new DuneLocationCalculationEntity
+            {
+                DuneLocationEntity = duneLocationEntityOne
+            };
+
+            DuneLocationEntity duneLocationEntityTwo = CreateDuneLocationEntity();
+            var calculationEntityWithOutput = new DuneLocationCalculationEntity
+            {
+                DuneLocationEntity = duneLocationEntityTwo,
+                DuneLocationOutputEntities =
+                {
+                    new DuneLocationOutputEntity()
+                }
+            };
+
+            var collectionEntity = new DuneLocationCalculationCollectionEntity
+            {
+                DuneLocationCalculationEntities =
+                {
+                    calculationEntityWithoutOutput,
+                    calculationEntityWithOutput
+                }
+            };
+
+            var duneLocationOne = new TestDuneLocation("1");
+            var duneLocationTwo = new TestDuneLocation("2");
+            var collector = new ReadConversionCollector();
+            collector.Read(duneLocationEntityOne, duneLocationOne);
+            collector.Read(duneLocationEntityTwo, duneLocationTwo);
+
+            var calculationOne = new DuneLocationCalculation(duneLocationOne);
+            var calculationTwo = new DuneLocationCalculation(duneLocationTwo);
+
+            // Call
+            collectionEntity.Read(new []
+            {
+                calculationOne,
+                calculationTwo
+            }, collector);
+
+            // Assert
+            Assert.IsNull(calculationOne.Output);
+            Assert.IsNotNull(calculationTwo.Output);
+        }
+
+        private static DuneLocationEntity CreateDuneLocationEntity()
+        {
+            return new DuneLocationEntity
+            {
+                LocationId = 1,
+                Name = "Dune Location",
+                LocationX = 1,
+                LocationY = 2
+            };
+        }
+    }
+}
\ No newline at end of file