Wow! WOW!!!! I think that was the nicest ballpark i've ever been to. everything is right on top of the action, they understand making it an experience (unlike Seattle). Great scenery, and yes you probably can hit a ball into the river. Funny voicetrous fans ala Philly.
They close the bridge for the games, though don't do anything with it. just lacking crowds (which was nice for us as we could sit everywhere and tour the park. Manny Santguine has a BBQ in the outfield and sits there and signs autographs the whole game.)
Great fun, I think the bleachers might be the best seats in the house right on the fence. Unlike other places they seem to mandate the players interact with the fans.