Index: water_cmd.cpp
===================================================================
--- water_cmd.cpp	(revision 27222)
+++ water_cmd.cpp	(working copy)
@@ -109,7 +109,7 @@
 		return_cmd_error(STR_ERROR_MUST_BE_BUILT_ON_WATER);
 	}

-	if (IsBridgeAbove(tile) || IsBridgeAbove(tile2)) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
+	// if (IsBridgeAbove(tile) || IsBridgeAbove(tile2)) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);

 	if (!IsTileFlat(tile) || !IsTileFlat(tile2)) {
 		/* Prevent depots on rapids */
@@ -288,9 +288,9 @@
 		return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
 	}

-	if (IsBridgeAbove(tile) || IsBridgeAbove(tile - delta) || IsBridgeAbove(tile + delta)) {
-		return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
-	}
+	// if (IsBridgeAbove(tile) || IsBridgeAbove(tile - delta) || IsBridgeAbove(tile + delta)) {
+		// return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
+	// }

 	if (flags & DC_EXEC) {
 		/* Update company infrastructure counts. */
@@ -859,10 +859,12 @@

 		case WATER_TILE_LOCK:
 			DrawWaterLock(ti);
+			DrawBridgeMiddle(ti);
 			break;

 		case WATER_TILE_DEPOT:
 			DrawWaterDepot(ti);
+			DrawBridgeMiddle(ti);
 			break;
 	}
 }