Market Garden Day 5 - The Poles arrive just in time

In the south, 30th Corps is able to capture 2 bridges and get behind the German armor threatening their line of communication. With assistance from the 101st, they decimate the Germans.
At Nijmegen, thanks to the Poles dropping behind the Germans blocking the Nijmegen Bridge, the Allies cross the bridge again with the 82nd.
This time will they hold?