diff --git a/core/modules/block_content/block_content.routing.yml b/core/modules/block_content/block_content.routing.yml
index 1d41aa3098f..82b31488873 100644
--- a/core/modules/block_content/block_content.routing.yml
+++ b/core/modules/block_content/block_content.routing.yml
@@ -8,32 +8,6 @@ block_content.add_page:
   requirements:
     _entity_create_any_access: 'block_content'
 
-# @todo Deprecate this route once
-#   https://www.drupal.org/project/drupal/issues/3159210 is fixed, or remove
-#   it in Drupal 11.
-# @see https://www.drupal.org/node/3320855
-entity.block_content_type.collection.bc:
-  path: '/admin/structure/block/block-content/types'
-  defaults:
-    _controller: '\Drupal\block_content\Controller\BlockContentController::blockContentTypeRedirect'
-  options:
-    _admin_route: TRUE
-  requirements:
-    _permission: 'administer block types'
-
-# @todo Deprecate this route once
-#   https://www.drupal.org/project/drupal/issues/3159210 is fixed, or remove
-#   it in Drupal 11.
-# @see https://www.drupal.org/node/3320855
-entity.block_content_type.edit_form.bc:
-  path: '/admin/structure/block/block-content/manage/{block_content_type}'
-  defaults:
-    _controller: '\Drupal\block_content\Controller\BlockContentController::blockContentTypeRedirect'
-  options:
-    _admin_route: TRUE
-  requirements:
-    _permission: 'administer block types'
-
 block_content.add_form:
   path: '/block/add/{block_content_type}'
   defaults:
@@ -65,20 +39,6 @@ entity.block_content.edit_form:
     _entity_access: 'block_content.update'
     block_content: \d+
 
-# @todo Deprecate this route once
-#   https://www.drupal.org/project/drupal/issues/3159210 is fixed, or remove
-#   it in Drupal 11.
-# @see https://www.drupal.org/node/2317981
-entity.block_content.edit_form.bc:
-  path: '/block/{block_content}'
-  defaults:
-    _controller: '\Drupal\block_content\Controller\BlockContentController::editRedirect'
-  options:
-    _admin_route: TRUE
-  requirements:
-    _entity_access: 'block_content.update'
-    block_content: \d+
-
 entity.block_content.delete_form:
   path: '/admin/content/block/{block_content}/delete'
   defaults:
@@ -90,20 +50,6 @@ entity.block_content.delete_form:
     _entity_access: 'block_content.delete'
     block_content: \d+
 
-# @todo Deprecate this route once
-#   https://www.drupal.org/project/drupal/issues/3159210 is fixed, or remove
-#   it in Drupal 11.
-# @see https://www.drupal.org/node/2317981
-entity.block_content.delete_form.bc:
-  path: '/block/{block_content}/delete'
-  defaults:
-    _controller: '\Drupal\block_content\Controller\BlockContentController::editRedirect'
-  options:
-    _admin_route: TRUE
-  requirements:
-    _entity_access: 'block_content.delete'
-    block_content: \d+
-
 block_content.type_add:
   path: '/admin/structure/block-content/add'
   defaults:
@@ -119,14 +65,3 @@ entity.block_content.collection:
     _entity_list: 'block_content'
   requirements:
     _permission: 'access block library+administer block content'
-
-# @todo Deprecate this route once
-#   https://www.drupal.org/project/drupal/issues/3159210 is fixed, or remove
-#   it in Drupal 11.
-# @see https://www.drupal.org/node/3320855
-entity.block_content.collection.bc:
-  path: '/admin/structure/block/block-content'
-  defaults:
-    _controller: '\Drupal\block_content\Controller\BlockContentController::blockLibraryRedirect'
-  requirements:
-    _permission: 'access block library+administer block content'
diff --git a/core/modules/block_content/src/Controller/BlockContentController.php b/core/modules/block_content/src/Controller/BlockContentController.php
index dbe844d9d6b..8177e44e873 100644
--- a/core/modules/block_content/src/Controller/BlockContentController.php
+++ b/core/modules/block_content/src/Controller/BlockContentController.php
@@ -4,15 +4,11 @@ namespace Drupal\block_content\Controller;
 
 use Drupal\Core\Controller\ControllerBase;
 use Drupal\Core\Entity\EntityStorageInterface;
-use Drupal\Core\Routing\PathChangedHelper;
-use Drupal\Core\Routing\RouteMatchInterface;
-use Drupal\block_content\BlockContentInterface;
 use Drupal\block_content\BlockContentTypeInterface;
 use Drupal\Core\Extension\ThemeHandlerInterface;
 use Drupal\Core\Url;
 use Symfony\Component\DependencyInjection\ContainerInterface;
 use Symfony\Component\HttpFoundation\Request;
-use Symfony\Component\HttpFoundation\RedirectResponse;
 
 class BlockContentController extends ControllerBase {
 
@@ -140,100 +136,4 @@ class BlockContentController extends ControllerBase {
     return $this->t('Add %type content block', ['%type' => $block_content_type->label()]);
   }
 
-  /**
-   * Provides a redirect to the list of block types.
-   *
-   * @param \Drupal\Core\Routing\RouteMatchInterface $route_match
-   *   A route match object, used for the route name and the parameters.
-   * @param \Symfony\Component\HttpFoundation\Request $request
-   *   The current request object.
-   *
-   * @return \Symfony\Component\HttpFoundation\RedirectResponse
-   *
-   * @deprecated in drupal:10.1.0 and is removed from drupal:11.0.0. Use
-   *   /admin/structure/block-content directly instead of
-   *   /admin/structure/block/block-content/types.
-   *
-   * @see https://www.drupal.org/node/3320855
-   */
-  public function blockContentTypeRedirect(RouteMatchInterface $route_match, Request $request): RedirectResponse {
-    @trigger_error('The path /admin/structure/block/block-content/types is deprecated in drupal:10.1.0 and is removed from drupal:11.0.0. Use /admin/structure/block-content. See https://www.drupal.org/node/3320855', E_USER_DEPRECATED);
-    $helper = new PathChangedHelper($route_match, $request);
-    $params = [
-      '%old_path' => $helper->oldPath(),
-      '%new_path' => $helper->newPath(),
-      '%change_record' => 'https://www.drupal.org/node/3320855',
-    ];
-    $warning_message = $this->t('You have been redirected from %old_path. Update links, shortcuts, and bookmarks to use %new_path.', $params);
-    $this->messenger()->addWarning($warning_message);
-    $this->getLogger('block_content')->warning('A user was redirected from %old_path. This redirect will be removed in a future version of Drupal. Update links, shortcuts, and bookmarks to use %new_path. See %change_record for more information.', $params);
-
-    return $helper->redirect();
-  }
-
-  /**
-   * Provides a redirect to the content block library.
-   *
-   * @param \Drupal\Core\Routing\RouteMatchInterface $route_match
-   *   A route match object, used for the route name and the parameters.
-   * @param \Symfony\Component\HttpFoundation\Request $request
-   *   The current request object.
-   *
-   * @return \Symfony\Component\HttpFoundation\RedirectResponse
-   *
-   * @deprecated in drupal:10.1.0 and is removed from drupal:11.0.0. Use
-   *   /admin/content/block directly instead of
-   *   /admin/structure/block/block-content.
-   *
-   * @see https://www.drupal.org/node/3320855
-   */
-  public function blockLibraryRedirect(RouteMatchInterface $route_match, Request $request) {
-    @trigger_error('The path /admin/structure/block/block-content is deprecated in drupal:10.1.0 and is removed from drupal:11.0.0. Use /admin/content/block. See https://www.drupal.org/node/3320855', E_USER_DEPRECATED);
-    $helper = new PathChangedHelper($route_match, $request);
-    $params = [
-      '%old_path' => $helper->oldPath(),
-      '%new_path' => $helper->newPath(),
-      '%change_record' => 'https://www.drupal.org/node/3320855',
-    ];
-    $warning_message = $this->t('You have been redirected from %old_path. Update links, shortcuts, and bookmarks to use %new_path.', $params);
-    $this->messenger()->addWarning($warning_message);
-    $this->getLogger('block_content')
-      ->warning('A user was redirected from %old_path. This redirect will be removed in a future version of Drupal. Update links, shortcuts, and bookmarks to use %new_path. See %change_record for more information.', $params);
-
-    return $helper->redirect();
-  }
-
-  /**
-   * Provides a redirect to block edit page.
-   *
-   * @param \Drupal\Core\Routing\RouteMatchInterface $route_match
-   *   A route match object, used for the route name and the parameters.
-   * @param \Symfony\Component\HttpFoundation\Request $request
-   *   The current request object.
-   * @param Drupal\block_content\BlockContentInterface $block_content
-   *   The block to be edited.
-   *
-   * @return \Symfony\Component\HttpFoundation\RedirectResponse
-   *
-   * @deprecated in drupal:10.1.0 and is removed from drupal:11.0.0. Use
-   *   /admin/content/block/{block_content} directly instead of
-   *   /block/{block_content}.
-   *
-   * @see https://www.drupal.org/node/3320855
-   */
-  public function editRedirect(RouteMatchInterface $route_match, Request $request, BlockContentInterface $block_content): RedirectResponse {
-    @trigger_error('The path /block/{block_content} is deprecated in drupal:10.1.0 and is removed from drupal:11.0.0. Use /admin/content/block/{block_content}. See https://www.drupal.org/node/3320855', E_USER_DEPRECATED);
-    $helper = new PathChangedHelper($route_match, $request);
-    $params = [
-      '%old_path' => $helper->oldPath(),
-      '%new_path' => $helper->newPath(),
-      '%change_record' => 'https://www.drupal.org/node/3320855',
-    ];
-    $warning_message = $this->t('You have been redirected from %old_path. Update links, shortcuts, and bookmarks to use %new_path.', $params);
-    $this->messenger()->addWarning($warning_message);
-    $this->getLogger('block_content')->warning('A user was redirected from %old_path to %new_path. This redirect will be removed in a future version of Drupal. Update links, shortcuts, and bookmarks to use %new_path. See %change_record for more information.', $params);
-
-    return $helper->redirect();
-  }
-
 }
diff --git a/core/modules/block_content/tests/src/Functional/BlockContentRedirectTest.php b/core/modules/block_content/tests/src/Functional/BlockContentRedirectTest.php
deleted file mode 100644
index e271f842955..00000000000
--- a/core/modules/block_content/tests/src/Functional/BlockContentRedirectTest.php
+++ /dev/null
@@ -1,74 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Drupal\Tests\block_content\Functional;
-
-/**
- * Ensures that custom block type functions work correctly.
- *
- * @group block_content
- * @group legacy
- */
-class BlockContentRedirectTest extends BlockContentTestBase {
-
-  /**
-   * {@inheritdoc}
-   */
-  protected $defaultTheme = 'stark';
-
-  /**
-   * Tests the deprecation message from the old block-type page.
-   *
-   * @group legacy
-   */
-  public function testBlockContentTypeRedirect() {
-    $this->drupalLogin($this->adminUser);
-    $this->expectDeprecation('The path /admin/structure/block/block-content/types is deprecated in drupal:10.1.0 and is removed from drupal:11.0.0. Use /admin/structure/block-content. See https://www.drupal.org/node/3320855');
-    $this->drupalGet('/admin/structure/block/block-content/types');
-    $this->assertSession()
-      ->pageTextContains("You have been redirected from admin/structure/block/block-content/types. Update links, shortcuts, and bookmarks to use admin/structure/block-content.");
-  }
-
-  /**
-   * Tests the deprecation message from the old block library page.
-   *
-   * @group legacy
-   */
-  public function testBlockLibraryRedirect() {
-    $this->drupalLogin($this->adminUser);
-    $this->expectDeprecation('The path /admin/structure/block/block-content is deprecated in drupal:10.1.0 and is removed from drupal:11.0.0. Use /admin/content/block. See https://www.drupal.org/node/3320855');
-    $this->drupalGet('admin/structure/block/block-content');
-    $this->assertSession()
-      ->pageTextContains("You have been redirected from admin/structure/block/block-content. Update links, shortcuts, and bookmarks to use admin/content/block.");
-  }
-
-  /**
-   * Tests the deprecation message from the old block edit page.
-   *
-   * @group legacy
-   */
-  public function testBlockContentEditRedirect(): void {
-    $block = $this->createBlockContent();
-    $this->drupalLogin($this->adminUser);
-    $this->expectDeprecation('The path /block/{block_content} is deprecated in drupal:10.1.0 and is removed from drupal:11.0.0. Use /admin/content/block/{block_content}. See https://www.drupal.org/node/3320855');
-    $this->drupalGet("/block/{$block->id()}");
-    $this->assertSession()
-      ->pageTextContains("You have been redirected from block/{$block->id()}. Update links, shortcuts, and bookmarks to use admin/content/block/{$block->id()}.");
-  }
-
-  /**
-   * Tests the deprecation message from the old block delete page.
-   *
-   * @group legacy
-   */
-  public function testBlockContentDeleteRedirect(): void {
-    $block = $this->createBlockContent();
-    $this->drupalLogin($this->adminUser);
-    $this->expectDeprecation('The path /block/{block_content} is deprecated in drupal:10.1.0 and is removed from drupal:11.0.0. Use /admin/content/block/{block_content}. See https://www.drupal.org/node/3320855');
-    $this->drupalGet("/block/{$block->id()}/delete");
-    $this->assertSession()
-      ->pageTextContains("You have been redirected from block/{$block->id()}/delete. Update links, shortcuts, and bookmarks to use admin/content/block/{$block->id()}/delete.");
-  }
-
-}
diff --git a/core/modules/layout_builder/tests/src/FunctionalJavascript/InlineBlockTest.php b/core/modules/layout_builder/tests/src/FunctionalJavascript/InlineBlockTest.php
index b76512c8497..60310e0a959 100644
--- a/core/modules/layout_builder/tests/src/FunctionalJavascript/InlineBlockTest.php
+++ b/core/modules/layout_builder/tests/src/FunctionalJavascript/InlineBlockTest.php
@@ -508,7 +508,7 @@ class InlineBlockTest extends InlineBlockTestBase {
     $this->assertSaveLayout();
     $node_1_block_id = $this->getLatestBlockEntityId();
 
-    $this->drupalGet("block/$node_1_block_id");
+    $this->drupalGet("admin/content/block/$node_1_block_id");
     $assert_session->pageTextNotContains('You are not authorized to access this page');
 
     $this->drupalLogout();
@@ -516,13 +516,13 @@ class InlineBlockTest extends InlineBlockTestBase {
       'administer nodes',
     ]));
 
-    $this->drupalGet("block/$node_1_block_id");
+    $this->drupalGet("admin/content/block/$node_1_block_id");
     $assert_session->pageTextContains('You are not authorized to access this page');
 
     $this->drupalLogin($this->drupalCreateUser([
       'create and edit custom blocks',
     ]));
-    $this->drupalGet("block/$node_1_block_id");
+    $this->drupalGet("admin/content/block/$node_1_block_id");
     $assert_session->pageTextNotContains('You are not authorized to access this page');
   }