Index: trunk/data/validator/deprecated.mapcss
===================================================================
--- trunk/data/validator/deprecated.mapcss	(revision 15265)
+++ trunk/data/validator/deprecated.mapcss	(revision 15266)
@@ -1723,2 +1723,10 @@
   fixAdd: "roof:shape=half-hipped";
 }
+
+/* #18003 */
+*[bridge_name] {
+  throwWarning: tr("{0} is deprecated", "{0.key}");
+  suggestAlternative: "bridge:name";
+  group: tr("deprecated tagging");
+  fixChangeKey: "bridge_name => bridge:name";
+}