Index: trunk/styles/standard/elemstyles.mapcss
===================================================================
--- trunk/styles/standard/elemstyles.mapcss	(revision 11265)
+++ trunk/styles/standard/elemstyles.mapcss	(revision 11281)
@@ -4205,4 +4205,10 @@
     color: water#0000ff;
 }
+way[waterway=river][lock=yes],
+way[waterway=canal][lock=yes] {
+    casing-width: 2;
+    casing-color: lock#303030;
+    casing-dashes: 5,20;
+}
 way[waterway=stream] {
     width: 1;
@@ -4228,4 +4234,8 @@
     icon-image: "presets/nautical/boatyard.svg";
     set icon_z17;
+}
+way[waterway=lock_gate] {
+    width: 3;
+    color: lock_gate#303030;
 }
 node[waterway=lock_gate] {