diff --git a/lang/polish.txt b/lang/polish.txt
--- a/lang/polish.txt
+++ b/lang/polish.txt
@@ -1586,6 +1586,7 @@ STR_RAILROAD_TRACK_WITH_COMBOSIGNALS    
 
 ##id 0x1800
 STR_1801_MUST_REMOVE_ROAD_FIRST                                 :{WHITE}Trzeba usunac najpierw droge
+STR_ROAD_WORKS_IN_PROGRESS                                      :{WHITE}Trwaja roboty drogowe
 STR_1802_ROAD_CONSTRUCTION                                      :{WHITE}Tworzenie drog
 STR_1803_SELECT_ROAD_BRIDGE                                     :{WHITE}Wybierz most drogowy
 STR_1804_CAN_T_BUILD_ROAD_HERE                                  :{WHITE}Nie mozna zbudowac tutaj drogi...