Index: trunk/data/tagchecker.cfg
===================================================================
--- trunk/data/tagchecker.cfg	(revision 6183)
+++ trunk/data/tagchecker.cfg	(revision 6184)
@@ -80,5 +80,5 @@
 #way  : I : highway != * && railway != * && waterway != * && name == * # unusual named way type
 #*    : W : natural == water && waterway == *                   # unusual tag combination (natural=water & waterway)
-*    : W : highway == * && waterway == *                       # unusual tag combination (highway & waterway)
+*    : W : highway == * && waterway == * && waterway != dam    # unusual tag combination (highway & waterway)
 *    : W : highway == * && natural == *                        # unusual tag combination (highway & natural)