Question about "The River" seating with a backpack

In a few weeks, I am seeing "The River" and I have Riverbank seating in row BB. The question I have is do they let people bring in bags/backpacks?

I know the Riverbank seating is on benches, so I wasn't sure if there was a special policy about bags for people sitting in that section? I will probably have a medium size backpack with me. Any information or suggestions would be appreciated.

I don't usually have any bags with me, so I'm not familiar with the policies.

Thanks.

I sat on one of the riverbank seats! The lady who was passing out the playbills said something about backpacks, but I didn't listen clearly to what she said. I kept my backpack pressed against the bench with my legs and it was fine. They'll let you know how to situate backpacks and small bags when they hand out the playbills.

All good suggestions. I didn't know there were lockers downstairs at CITS.