Is the bridge wheelchair accessible on both ends?

On the east side, kinda. The West side, I think it's just stairs unless they've added a ramp.

Only from one side, east side.

No.

It is not wheelchair accessible if you want to get to street level, there are steps on one end. If you just want to go across and come back, you can from the east end.

Not really

Just like Shannon Carlson said.