diff --git a/core/modules/hal/tests/src/Functional/EntityResource/Node/NodeHalJsonAnonTest.php b/core/modules/hal/tests/src/Functional/EntityResource/Node/NodeHalJsonAnonTest.php
index e92a3d6643..d5dde27ab2 100644
--- a/core/modules/hal/tests/src/Functional/EntityResource/Node/NodeHalJsonAnonTest.php
+++ b/core/modules/hal/tests/src/Functional/EntityResource/Node/NodeHalJsonAnonTest.php
@@ -38,6 +38,7 @@ class NodeHalJsonAnonTest extends NodeResourceTestBase {
     'changed',
     'promote',
     'sticky',
+    'path',
     'revision_timestamp',
     'revision_uid',
   ];
@@ -54,7 +55,7 @@ protected function getExpectedNormalizedEntity() {
     return  $normalization + [
       '_links' => [
         'self' => [
-          'href' => $this->baseUrl . '/node/1?_format=hal_json',
+          'href' => $this->baseUrl . '/llama?_format=hal_json',
         ],
         'type' => [
           'href' => $this->baseUrl . '/rest/type/node/camelids',
diff --git a/core/modules/hal/tests/src/Functional/EntityResource/Term/TermHalJsonAnonTest.php b/core/modules/hal/tests/src/Functional/EntityResource/Term/TermHalJsonAnonTest.php
index ff952eabdf..73a1549e0a 100644
--- a/core/modules/hal/tests/src/Functional/EntityResource/Term/TermHalJsonAnonTest.php
+++ b/core/modules/hal/tests/src/Functional/EntityResource/Term/TermHalJsonAnonTest.php
@@ -40,7 +40,7 @@ protected function getExpectedNormalizedEntity() {
     return $normalization + [
       '_links' => [
         'self' => [
-          'href' => $this->baseUrl . '/taxonomy/term/1?_format=hal_json',
+          'href' => $this->baseUrl . '/llama?_format=hal_json',
         ],
         'type' => [
           'href' => $this->baseUrl . '/rest/type/taxonomy_term/camelids',
diff --git a/core/modules/path/path.module b/core/modules/path/path.module
index a724b773d6..9b3d8af832 100644
--- a/core/modules/path/path.module
+++ b/core/modules/path/path.module
@@ -4,7 +4,7 @@
  * @file
  * Enables users to rename URLs.
  */
-
+use Drupal\Core\Entity\ContentEntityInterface;
 use Drupal\Core\Entity\EntityTypeInterface;
 use Drupal\Core\Field\BaseFieldDefinition;
 use Drupal\Core\Form\FormStateInterface;
@@ -76,3 +76,17 @@ function path_entity_base_field_info(EntityTypeInterface $entity_type) {
     return $fields;
   }
 }
+
+/**
+ * Implements hook_entity_translation_create().
+ */
+function path_entity_translation_create(ContentEntityInterface $translation) {
+  foreach ($translation->getFieldDefinitions() as $field_name => $field_definition) {
+    if ($field_definition->getType() === 'path' && $translation->get($field_name)->pid) {
+      // If there are values and a path ID, update the langcode and unset the
+      // path ID to save this as a new alias.
+      $translation->get($field_name)->langcode = $translation->language()->getId();
+      $translation->get($field_name)->pid = NULL;
+    }
+  }
+}
diff --git a/core/modules/path/src/Plugin/Field/FieldType/PathFieldItemList.php b/core/modules/path/src/Plugin/Field/FieldType/PathFieldItemList.php
index ee03361d96..a98e718696 100644
--- a/core/modules/path/src/Plugin/Field/FieldType/PathFieldItemList.php
+++ b/core/modules/path/src/Plugin/Field/FieldType/PathFieldItemList.php
@@ -34,4 +34,42 @@ public function delete() {
     \Drupal::service('path.alias_storage')->delete($conditions);
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public function getValue($include_computed = FALSE) {
+    $this->ensureLoaded();
+    return parent::getValue($include_computed);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function isEmpty() {
+    $this->ensureLoaded();
+    return parent::isEmpty();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getIterator() {
+    $this->ensureLoaded();
+    return parent::getIterator();
+  }
+
+  /**
+   * Automatically create the first item for computed fields.
+   *
+   * This ensures that ::getValue() and ::isEmpty() calls will behave like a
+   * non-computed field.
+   *
+   * @todo: Move this to the base class in https://www.drupal.org/node/2392845.
+   */
+  protected function ensureLoaded() {
+    if (!isset($this->list[0]) && $this->definition->isComputed()) {
+      $this->list[0] = $this->createItem(0);
+    }
+  }
+
 }
diff --git a/core/modules/path/src/Plugin/Field/FieldType/PathItem.php b/core/modules/path/src/Plugin/Field/FieldType/PathItem.php
index 4d8da7a8ad..53ddcc2689 100644
--- a/core/modules/path/src/Plugin/Field/FieldType/PathItem.php
+++ b/core/modules/path/src/Plugin/Field/FieldType/PathItem.php
@@ -23,6 +23,13 @@
 class PathItem extends FieldItemBase {
 
   /**
+   * Whether the alias has been loaded from the alias storage service yet.
+   *
+   * @var bool
+   */
+  protected $isLoaded = FALSE;
+
+  /**
    * {@inheritdoc}
    */
   public static function propertyDefinitions(FieldStorageDefinitionInterface $field_definition) {
@@ -30,12 +37,22 @@ public static function propertyDefinitions(FieldStorageDefinitionInterface $fiel
       ->setLabel(t('Path alias'));
     $properties['pid'] = DataDefinition::create('integer')
       ->setLabel(t('Path id'));
+    $properties['langcode'] = DataDefinition::create('string')
+      ->setLabel(t('Language Code'));
     return $properties;
   }
 
   /**
    * {@inheritdoc}
    */
+  public function __get($name) {
+    $this->ensureLoaded();
+    return parent::__get($name);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
   public static function schema(FieldStorageDefinitionInterface $field_definition) {
     return [];
   }
@@ -43,6 +60,30 @@ public static function schema(FieldStorageDefinitionInterface $field_definition)
   /**
    * {@inheritdoc}
    */
+  public function getValue() {
+    $this->ensureLoaded();
+    return parent::getValue();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function isEmpty() {
+    $this->ensureLoaded();
+    return parent::isEmpty();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getIterator() {
+    $this->ensureLoaded();
+    return parent::getIterator();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
   public function preSave() {
     $this->alias = trim($this->alias);
   }
@@ -50,6 +91,28 @@ public function preSave() {
   /**
    * {@inheritdoc}
    */
+  public function __set($name, $value) {
+    // Also ensure that existing values are loaded when setting a value, this
+    // ensures that it is possible to set a new value immediately after loading
+    // an entity.
+    $this->ensureLoaded();
+    parent::__set($name, $value);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function set($property_name, $value, $notify = TRUE) {
+    // Also ensure that existing values are loaded when setting a value, this
+    // ensures that it is possible to set a new value immediately after loading
+    // an entity.
+    $this->ensureLoaded();
+    return parent::set($property_name, $value, $notify);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
   public function postSave($update) {
     if (!$update) {
       if ($this->alias) {
@@ -88,4 +151,38 @@ public static function mainPropertyName() {
     return 'alias';
   }
 
+  /**
+   * Ensures the alias properties are loaded if available.
+   *
+   * This ensures that the properties will always be loaded and act like
+   * non-computed fields when calling ::__get() and getValue().
+   *
+   * @todo: Determine if this should be moved to the base class in
+   *   https://www.drupal.org/node/2392845.
+   */
+  protected function ensureLoaded() {
+    if (!$this->isLoaded) {
+      $entity = $this->getEntity();
+      if (!$entity->isNew()) {
+        // @todo Support loading languge neutral aliases in
+        //   https://www.drupal.org/node/2511968.
+        $alias = \Drupal::service('path.alias_storage')->load([
+          'source' => '/' . $entity->toUrl()->getInternalPath(),
+          'langcode' => $this->getLangcode(),
+        ]);
+        if ($alias) {
+          $this->setValue($alias);
+        }
+        else {
+          // If there is no existing alias, default the langcode to the current
+          // language.
+          // @todo Set the langcode to not specified for untranslatable fields
+          //   in https://www.drupal.org/node/2689459.
+          $this->langcode = $this->getLangcode();
+        }
+      }
+      $this->isLoaded = TRUE;
+    }
+  }
+
 }
diff --git a/core/modules/path/src/Plugin/Field/FieldWidget/PathWidget.php b/core/modules/path/src/Plugin/Field/FieldWidget/PathWidget.php
index ea69ca1bd0..13ab1f1076 100644
--- a/core/modules/path/src/Plugin/Field/FieldWidget/PathWidget.php
+++ b/core/modules/path/src/Plugin/Field/FieldWidget/PathWidget.php
@@ -5,7 +5,6 @@
 use Drupal\Core\Field\FieldItemListInterface;
 use Drupal\Core\Field\WidgetBase;
 use Drupal\Core\Form\FormStateInterface;
-use Drupal\Core\Language\LanguageInterface;
 use Symfony\Component\Validator\ConstraintViolationInterface;
 
 /**
@@ -26,23 +25,6 @@ class PathWidget extends WidgetBase {
    */
   public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state) {
     $entity = $items->getEntity();
-    $path = [];
-    if (!$entity->isNew()) {
-      $conditions = ['source' => '/' . $entity->urlInfo()->getInternalPath()];
-      if ($items->getLangcode() != LanguageInterface::LANGCODE_NOT_SPECIFIED) {
-        $conditions['langcode'] = $items->getLangcode();
-      }
-      $path = \Drupal::service('path.alias_storage')->load($conditions);
-      if ($path === FALSE) {
-        $path = [];
-      }
-    }
-    $path += [
-      'pid' => NULL,
-      'source' => !$entity->isNew() ? '/' . $entity->urlInfo()->getInternalPath() : NULL,
-      'alias' => '',
-      'langcode' => $items->getLangcode(),
-    ];
 
     $element += [
       '#element_validate' => [[get_class($this), 'validateFormElement']],
@@ -50,22 +32,22 @@ public function formElement(FieldItemListInterface $items, $delta, array $elemen
     $element['alias'] = [
       '#type' => 'textfield',
       '#title' => $element['#title'],
-      '#default_value' => $path['alias'],
+      '#default_value' => $items[$delta]->alias,
       '#required' => $element['#required'],
       '#maxlength' => 255,
       '#description' => $this->t('Specify an alternative path by which this data can be accessed. For example, type "/about" when writing an about page.'),
     ];
     $element['pid'] = [
       '#type' => 'value',
-      '#value' => $path['pid'],
+      '#value' => $items[$delta]->pid,
     ];
     $element['source'] = [
       '#type' => 'value',
-      '#value' => $path['source'],
-    ];
+      '#value' => !$entity->isNew() ? '/' . $entity->toUrl()->getInternalPath() : NULL,
+     ];
     $element['langcode'] = [
       '#type' => 'value',
-      '#value' => $path['langcode'],
+      '#value' => $items[$delta]->langcode,
     ];
     return $element;
   }
diff --git a/core/modules/rest/tests/src/Functional/EntityResource/Node/NodeResourceTestBase.php b/core/modules/rest/tests/src/Functional/EntityResource/Node/NodeResourceTestBase.php
index cfbd971611..7c4436a729 100644
--- a/core/modules/rest/tests/src/Functional/EntityResource/Node/NodeResourceTestBase.php
+++ b/core/modules/rest/tests/src/Functional/EntityResource/Node/NodeResourceTestBase.php
@@ -12,7 +12,7 @@
   /**
    * {@inheritdoc}
    */
-  public static $modules = ['node'];
+  public static $modules = ['node', 'path'];
 
   /**
    * {@inheritdoc}
@@ -28,6 +28,7 @@
     'changed',
     'promote',
     'sticky',
+    'path',
     'revision_timestamp',
     'revision_uid',
   ];
@@ -49,6 +50,10 @@ protected function setUpAuthorization($method) {
         $this->grantPermissionsToTestedRole(['access content', 'create camelids content']);
         break;
       case 'PATCH':
+        // Do not grant the 'create url aliases' permission to test the case
+        // when the path field is protected/not accessible, see
+        // \Drupal\Tests\rest\Functional\EntityResource\Term\TermResourceTestBase
+        // for a positive test.
         $this->grantPermissionsToTestedRole(['access content', 'edit any camelids content']);
         break;
       case 'DELETE':
@@ -77,6 +82,7 @@ protected function createEntity() {
       ->setCreatedTime(123456789)
       ->setChangedTime(123456789)
       ->setRevisionCreationTime(123456789)
+      ->set('path', '/llama')
       ->save();
 
     return $node;
@@ -171,6 +177,13 @@ protected function getExpectedNormalizedEntity() {
         ],
       ],
       'revision_log' => [],
+      'path' => [
+        [
+          'alias' => '/llama',
+          'pid' => 1,
+          'langcode' => 'en',
+        ],
+      ],
     ];
   }
 
diff --git a/core/modules/rest/tests/src/Functional/EntityResource/Term/TermResourceTestBase.php b/core/modules/rest/tests/src/Functional/EntityResource/Term/TermResourceTestBase.php
index 698451b58c..f773eee864 100644
--- a/core/modules/rest/tests/src/Functional/EntityResource/Term/TermResourceTestBase.php
+++ b/core/modules/rest/tests/src/Functional/EntityResource/Term/TermResourceTestBase.php
@@ -11,7 +11,7 @@
   /**
    * {@inheritdoc}
    */
-  public static $modules = ['taxonomy'];
+  public static $modules = ['taxonomy', 'path'];
 
   /**
    * {@inheritdoc}
@@ -41,8 +41,12 @@ protected function setUpAuthorization($method) {
       case 'POST':
       case 'PATCH':
       case 'DELETE':
+        // Grant the 'create url aliases' permission to test the case when
+        // the path field is accessible, see
+        // \Drupal\Tests\rest\Functional\EntityResource\Node\NodeResourceTestBase
+        // for a negative test.
         // @todo Update once https://www.drupal.org/node/2824408 lands.
-        $this->grantPermissionsToTestedRole(['administer taxonomy']);
+        $this->grantPermissionsToTestedRole(['administer taxonomy', 'create url aliases']);
         break;
     }
   }
@@ -64,7 +68,8 @@ protected function createEntity() {
     // Create a "Llama" taxonomy term.
     $term = Term::create(['vid' => $vocabulary->id()])
       ->setName('Llama')
-      ->setChangedTime(123456789);
+      ->setChangedTime(123456789)
+      ->set('path', '/llama');
     $term->save();
 
     return $term;
@@ -116,6 +121,13 @@ protected function getExpectedNormalizedEntity() {
           'value' => TRUE,
         ],
       ],
+      'path' => [
+        [
+          'alias' => '/llama',
+          'pid' => 1,
+          'langcode' => 'en',
+        ],
+      ],
     ];
   }