diff -r 8c3619631cb2 -r bd1637f172b4 src/roadveh_cmd.cpp
--- a/src/roadveh_cmd.cpp	Sat Feb 24 16:37:06 2007 +0000
+++ b/src/roadveh_cmd.cpp	Sat Feb 24 18:44:30 2007 +0000
@@ -880,7 +880,9 @@
 
 	// Clamp
 	spd = min(spd, v->max_speed);
-	if (v->u.road.state == RVSB_WORMHOLE) spd = min(spd, SetSpeedLimitOnBridge(v));
+	if (v->u.road.state == RVSB_WORMHOLE && !(v->vehstatus & VS_HIDDEN)) {
+		spd = min(spd, GetBridge(GetBridgeType(v->tile))->speed * 2);
+	}
 
 	//updates statusbar only if speed have changed to save CPU time
 	if (spd != v->cur_speed) {