I've fished Bridgeport a bit before. There's a good population of channel cats in there and usually any kind of punch bait will work good to put some in the boat. I haven't caught any personally, but I have seen some good flatheads come out of there.
For Pk, I would focus on blue cats from Costello Island up to the river mouth. There's a good amount of trees along the channel ledge which will hold some good fish this time of year.