Absolutely. The amount of reading I was given in college did not leave much time for any other reading. Not only did I struggle to finish the required readings (at times not being able to do it all), but I was also so burnt out from reading that the last thing I wanted to do was read something on the side.
I think there was a study conducted that conluded that the average amount of reading given out by college professors over the course of a semester is more than is physically possible (and healthy) to do. So if you don't get it all done, don't worry too much, chances are not most people didn't either.