diff --git a/core/modules/system/lib/Drupal/system/Controller/SystemController.php b/core/modules/system/lib/Drupal/system/Controller/SystemController.php
new file mode 100644
index 0000000..84981cd
--- /dev/null
+++ b/core/modules/system/lib/Drupal/system/Controller/SystemController.php
@@ -0,0 +1,46 @@
+<?php
+/**
+ * @file
+ * Contains \Drupal\system\Controller\SystemController.
+ */
+
+namespace Drupal\system\Controller;
+
+use Drupal\Core\ControllerInterface;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+use Drupal\system\SystemManager;
+
+/**
+ * Controller routines for system routes.
+ */
+class SystemController implements ControllerInterface {
+
+  /**
+   * System Manager Service.
+   *
+   * @var \Drupal\system\SystemManager
+   */
+  protected $systemManager;
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container) {
+    return new static($container->get('system.manager'));
+  }
+
+  /**
+   * Constructs a SystemController object.
+   */
+  public function __construct(SystemManager $systemManager) {
+    $this->systemManager = $systemManager;
+  }
+
+  /**
+   * Provide a single block from the administration menu as a page.
+   */
+  public function systemAdminMenuBlockPage() {
+    return $this->systemManager->getBlockContents();
+  }
+}
diff --git a/core/modules/system/lib/Drupal/system/SystemManager.php b/core/modules/system/lib/Drupal/system/SystemManager.php
index 2712169..86712a7 100644
--- a/core/modules/system/lib/Drupal/system/SystemManager.php
+++ b/core/modules/system/lib/Drupal/system/SystemManager.php
@@ -124,4 +124,31 @@ public function getMaxSeverity(&$requirements) {
     return $severity;
   }
 
+  /**
+   * Loads the contents of a menu block.
+   *
+   * This function is often a destination for these blocks.
+   * For example, 'admin/structure/types' needs to have a destination to be
+   * valid in the Drupal menu system, but too much information there might be
+   * hidden, so we supply the contents of the block.
+   *
+   * @return array
+   *   A render array suitable for drupal_render.
+   */
+  public function getBlockContents() {
+    $item = menu_get_item();
+    if ($content = system_admin_menu_block($item)) {
+      $output = array(
+        '#content' => $content,
+        '#theme' => 'admin_block_content',
+      );
+    }
+    else {
+      $output = array(
+        '#type' => 'markup',
+        '#markup' => t('You do not have any administrative items.'),
+      );
+    }
+    return $output;
+  }
 }
diff --git a/core/modules/system/system.admin.inc b/core/modules/system/system.admin.inc
index 6177dfd..c8aeeff 100644
--- a/core/modules/system/system.admin.inc
+++ b/core/modules/system/system.admin.inc
@@ -69,28 +69,6 @@ function system_admin_config_page() {
 }
 
 /**
- * Provide a single block from the administration menu as a page.
- *
- * This function is often a destination for these blocks.
- * For example, 'admin/structure/types' needs to have a destination to be valid
- * in the Drupal menu system, but too much information there might be
- * hidden, so we supply the contents of the block.
- *
- * @return
- *   The output HTML.
- */
-function system_admin_menu_block_page() {
-  $item = menu_get_item();
-  if ($content = system_admin_menu_block($item)) {
-    $output = theme('admin_block_content', array('content' => $content));
-  }
-  else {
-    $output = t('You do not have any administrative items.');
-  }
-  return $output;
-}
-
-/**
  * Menu callback; prints a listing of admin tasks, organized by module.
  */
 function system_admin_index() {
diff --git a/core/modules/system/system.module b/core/modules/system/system.module
index ce326d2..7d8bede 100644
--- a/core/modules/system/system.module
+++ b/core/modules/system/system.module
@@ -649,11 +649,9 @@ function system_menu() {
   );
   $items['admin'] = array(
     'title' => 'Administration',
-    'access arguments' => array('access administration pages'),
-    'page callback' => 'system_admin_menu_block_page',
+    'route_name' => 'system_admin',
     'weight' => 9,
     'menu_name' => 'admin',
-    'file' => 'system.admin.inc',
   );
   $items['admin/compact'] = array(
     'title' => 'Compact mode',
@@ -682,9 +680,7 @@ function system_menu() {
     'description' => 'Administer blocks, content types, menus, etc.',
     'position' => 'right',
     'weight' => -8,
-    'page callback' => 'system_admin_menu_block_page',
-    'access arguments' => array('access administration pages'),
-    'file' => 'system.admin.inc',
+    'route_name' => 'system_admin_structure',
   );
   // Appearance.
   $items['admin/appearance'] = array(
@@ -785,9 +781,7 @@ function system_menu() {
     'description' => 'Media tools.',
     'position' => 'left',
     'weight' => -10,
-    'page callback' => 'system_admin_menu_block_page',
-    'access arguments' => array('access administration pages'),
-    'file' => 'system.admin.inc',
+    'route_name' => 'system_admin_config_media',
   );
   $items['admin/config/media/file-system'] = array(
     'title' => 'File system',
@@ -808,9 +802,7 @@ function system_menu() {
     'description' => 'Tools related to web services.',
     'position' => 'right',
     'weight' => 0,
-    'page callback' => 'system_admin_menu_block_page',
-    'access arguments' => array('access administration pages'),
-    'file' => 'system.admin.inc',
+    'route_name' => 'system_admin_config_services',
   );
   $items['admin/config/services/rss-publishing'] = array(
     'title' => 'RSS publishing',
@@ -824,9 +816,7 @@ function system_menu() {
     'description' => 'Development tools.',
     'position' => 'right',
     'weight' => -10,
-    'page callback' => 'system_admin_menu_block_page',
-    'access arguments' => array('access administration pages'),
-    'file' => 'system.admin.inc',
+    'route_name' => 'system_admin_config_development',
   );
   $items['admin/config/development/maintenance'] = array(
     'title' => 'Maintenance mode',
@@ -853,9 +843,7 @@ function system_menu() {
     'description' => 'Regional settings, localization and translation.',
     'position' => 'left',
     'weight' => -5,
-    'page callback' => 'system_admin_menu_block_page',
-    'access arguments' => array('access administration pages'),
-    'file' => 'system.admin.inc',
+    'route_name' => 'system_admin_config_regional',
   );
   $items['admin/config/regional/settings'] = array(
     'title' => 'Regional settings',
@@ -905,9 +893,7 @@ function system_menu() {
     'description' => 'Local site search, metadata and SEO.',
     'position' => 'left',
     'weight' => -10,
-    'page callback' => 'system_admin_menu_block_page',
-    'access arguments' => array('access administration pages'),
-    'file' => 'system.admin.inc',
+    'route_name' => 'system_admin_config_search',
   );
 
   // System settings.
@@ -916,9 +902,7 @@ function system_menu() {
     'description' => 'General system related configuration.',
     'position' => 'right',
     'weight' => -20,
-    'page callback' => 'system_admin_menu_block_page',
-    'access arguments' => array('access administration pages'),
-    'file' => 'system.admin.inc',
+    'route_name' => 'system_admin_config_system',
   );
   $items['admin/config/system/site-information'] = array(
     'title' => 'Site information',
@@ -937,9 +921,7 @@ function system_menu() {
     'title' => 'User interface',
     'description' => 'Tools that enhance the user interface.',
     'position' => 'right',
-    'page callback' => 'system_admin_menu_block_page',
-    'access arguments' => array('access administration pages'),
-    'file' => 'system.admin.inc',
+    'route_name' => 'system_admin_config_ui',
     'weight' => -15,
   );
   $items['admin/config/workflow'] = array(
@@ -947,29 +929,23 @@ function system_menu() {
     'description' => 'Content workflow, editorial workflow tools.',
     'position' => 'right',
     'weight' => 5,
-    'page callback' => 'system_admin_menu_block_page',
-    'access arguments' => array('access administration pages'),
-    'file' => 'system.admin.inc',
+    'route_name' => 'system_admin_config_workflow',
   );
   $items['admin/config/content'] = array(
     'title' => 'Content authoring',
     'description' => 'Settings related to formatting and authoring content.',
     'position' => 'left',
     'weight' => -15,
-    'page callback' => 'system_admin_menu_block_page',
-    'access arguments' => array('access administration pages'),
-    'file' => 'system.admin.inc',
+    'route_name' => 'system_admin_config_content',
   );
 
   // Reports.
   $items['admin/reports'] = array(
     'title' => 'Reports',
     'description' => 'View reports, updates, and errors.',
-    'page callback' => 'system_admin_menu_block_page',
-    'access arguments' => array('access site reports'),
+    'route_name' => 'system_admin_reports',
     'weight' => 5,
     'position' => 'left',
-    'file' => 'system.admin.inc',
   );
   $items['admin/reports/status'] = array(
     'title' => 'Status report',
diff --git a/core/modules/system/system.routing.yml b/core/modules/system/system.routing.yml
index 6f0e7f5..2f9b96d 100644
--- a/core/modules/system/system.routing.yml
+++ b/core/modules/system/system.routing.yml
@@ -1,3 +1,75 @@
+system_admin:
+  pattern: '/admin'
+  defaults:
+    _content: '\Drupal\system\Controller\SystemController::systemAdminMenuBlockPage'
+  requirements:
+    _permission: 'access administration pages'
+system_admin_structure:
+  pattern: '/admin/structure'
+  defaults:
+    _content: '\Drupal\system\Controller\SystemController::systemAdminMenuBlockPage'
+  requirements:
+    _permission: 'access administration pages'
+system_admin_reports:
+  pattern: '/admin/reports'
+  defaults:
+    _content: '\Drupal\system\Controller\SystemController::systemAdminMenuBlockPage'
+  requirements:
+    _permission: 'access administration pages'
+system_admin_config_media:
+  pattern: '/admin/config/media'
+  defaults:
+    _content: '\Drupal\system\Controller\SystemController::systemAdminMenuBlockPage'
+  requirements:
+    _permission: 'access administration pages'
+system_admin_config_services:
+  pattern: '/admin/config/services'
+  defaults:
+    _content: '\Drupal\system\Controller\SystemController::systemAdminMenuBlockPage'
+  requirements:
+    _permission: 'access administration pages'
+system_admin_config_development:
+  pattern: '/admin/config/development'
+  defaults:
+    _content: '\Drupal\system\Controller\SystemController::systemAdminMenuBlockPage'
+  requirements:
+    _permission: 'access administration pages'
+system_admin_config_regional:
+  pattern: '/admin/config/regional'
+  defaults:
+    _content: '\Drupal\system\Controller\SystemController::systemAdminMenuBlockPage'
+  requirements:
+    _permission: 'access administration pages'
+system_admin_config_search:
+  pattern: '/admin/config/search'
+  defaults:
+    _content: '\Drupal\system\Controller\SystemController::systemAdminMenuBlockPage'
+  requirements:
+    _permission: 'access administration pages'
+system_admin_config_system:
+  pattern: '/admin/config/system'
+  defaults:
+    _content: '\Drupal\system\Controller\SystemController::systemAdminMenuBlockPage'
+  requirements:
+    _permission: 'access administration pages'
+system_admin_config_ui:
+  pattern: '/admin/config/user-interface'
+  defaults:
+    _content: '\Drupal\system\Controller\SystemController::systemAdminMenuBlockPage'
+  requirements:
+    _permission: 'access administration pages'
+system_admin_config_workflow:
+  pattern: '/admin/config/workflow'
+  defaults:
+    _content: '\Drupal\system\Controller\SystemController::systemAdminMenuBlockPage'
+  requirements:
+    _permission: 'access administration pages'
+system_admin_config_content:
+  pattern: '/admin/config/content'
+  defaults:
+    _content: '\Drupal\system\Controller\SystemController::systemAdminMenuBlockPage'
+  requirements:
+    _permission: 'access administration pages'
 system.cron:
   pattern: '/cron/{key}'
   defaults:
diff --git a/core/modules/system/tests/modules/design_test/design_test.module b/core/modules/system/tests/modules/design_test/design_test.module
index a7ab1b5..d35e491 100644
--- a/core/modules/system/tests/modules/design_test/design_test.module
+++ b/core/modules/system/tests/modules/design_test/design_test.module
@@ -137,9 +137,9 @@ function design_test_menu_theme_callback() {
 /**
  * Menu page callback for a category listing page.
  *
- * This is a specialized version of system_admin_menu_block_page(), which
- * retrieves all direct child menu links of the current page, regardless of
- * their type, skips default local tasks, and outputs them as a simple menu
+ * This is a specialized version of SystemController::systemAdminMenuBlockPage()
+ * , which retrieves all direct child menu links of the current page, regardless
+ * of their type, skips default local tasks, and outputs them as a simple menu
  * tree as the main page content.
  *
  * @param string $category
diff --git a/core/modules/system/tests/modules/menu_test/menu_test.module b/core/modules/system/tests/modules/menu_test/menu_test.module
index f0a02c5..5261e7f 100644
--- a/core/modules/system/tests/modules/menu_test/menu_test.module
+++ b/core/modules/system/tests/modules/menu_test/menu_test.module
@@ -24,14 +24,12 @@ function menu_test_menu() {
     'type' => MENU_CALLBACK,
     'access arguments' => array('access content'),
   );
-  // This item uses system_admin_menu_block_page() to list child items.
+  // This item uses SystemController::systemAdminMenuBlockPage() to list child
+  // items.
   $items['menu_callback_description'] = array(
     'title' => 'Menu item title',
-    'page callback' => 'system_admin_menu_block_page',
     'description' => 'Menu item description parent',
-    'access arguments' => array('access content'),
-    'file' => 'system.admin.inc',
-    'file path' => drupal_get_path('module', 'system'),
+    'route_name' => 'menu_callback_description',
   );
   $items['menu_callback_description/description-plain'] = array(
     'title' => 'Menu item with a regular description',
@@ -295,8 +293,8 @@ function menu_test_menu() {
   );
 
   // File inheritance tests. This menu item should inherit the page callback
-  // system_admin_menu_block_page() and therefore render its children as links
-  // on the page.
+  // SystemController::systemAdminMenuBlockPage() and therefore render its
+  // children as links on the page.
   $items['admin/config/development/file-inheritance'] = array(
     'title' => 'File inheritance',
     'description' => 'Test file inheritance',
diff --git a/core/modules/system/tests/modules/menu_test/menu_test.routing.yml b/core/modules/system/tests/modules/menu_test/menu_test.routing.yml
index 09b42ba..92e02e9 100644
--- a/core/modules/system/tests/modules/menu_test/menu_test.routing.yml
+++ b/core/modules/system/tests/modules/menu_test/menu_test.routing.yml
@@ -1,3 +1,10 @@
+menu_callback_description:
+  pattern: 'menu_callback_description'
+  defaults:
+    _content: '\Drupal\system\Controller\SystemController::systemAdminMenuBlockPage'
+  requirements:
+    _permission: 'access content'
+
 menu_router_test1:
   pattern: '/foo/{bar}'
   defaults:
diff --git a/core/modules/user/user.module b/core/modules/user/user.module
index 28083e0..caa2d48 100644
--- a/core/modules/user/user.module
+++ b/core/modules/user/user.module
@@ -997,15 +997,13 @@ function user_menu() {
 
   // Administration pages.
   $items['admin/config/people'] = array(
-   'title' => 'People',
-   'description' => 'Configure user accounts.',
-   'position' => 'left',
-   'weight' => -20,
-   'page callback' => 'system_admin_menu_block_page',
-   'access arguments' => array('access administration pages'),
-   'file' => 'system.admin.inc',
-   'file path' => drupal_get_path('module', 'system'),
+    'title' => 'People',
+    'description' => 'Configure user accounts.',
+    'position' => 'left',
+    'weight' => -20,
+    'route_name' => 'user_accounts',
   );
+
   $items['admin/config/people/accounts'] = array(
     'title' => 'Account settings',
     'description' => 'Configure default behavior of users, including registration requirements, e-mails, and fields.',
diff --git a/core/modules/user/user.routing.yml b/core/modules/user/user.routing.yml
index fb49de3..8d4b349 100644
--- a/core/modules/user/user.routing.yml
+++ b/core/modules/user/user.routing.yml
@@ -26,6 +26,13 @@ user_autocomplete_anonymous:
   requirements:
     _permission: 'access user profiles'
 
+user_accounts:
+  pattern: '/admin/config/people'
+  defaults:
+    _form: '\Drupal\system\Controller\SystemController::systemAdminMenuBlockPage'
+  requirements:
+    _permission: 'access administration pages'
+
 user_account_settings:
   pattern: '/admin/config/people/accounts'
   defaults: