Currently there is only 1 road tunnel in Poland. It is 700 metres long Lalikach tunnel on S1 highway. Very soon this will change radically. Currently, there are 9 tunnels under construction with a total length of 14 km, and in the coming years a dozen tunnels with a length of 25km will be added to Poland's tunnel network.

Magazyn eLubin give a good information on all of them.

http://magazyn.elubin.pl/przybedzie-tuneli-w-ciagu-drog-krajowych/