I was in Baltimore when the 17 year cicadas hatched, this was about, well 17 years ago. They were shoveling the sidewalks around the Aquarium and dumping them in the water there. There were drifts of them a foot deep in the corners of the buildings downtown. The cicadas weren't the worst part, the seagulls had discovered this source of food and were swarming the waterfront to feast. It wasn't safe to walk outside without an umbrella. There were gulls sitting on the street that had eaten so much they couldn't fly.

As far as what year cicada hatch this is, there can be 17 year cicadas hatching in consecutive years. The 17 or 7 or 13 year refers to the species of cicada that they are. I'm fairly certain that the black with orange eyes we are seeing are 17 year cicadas and there may be hatches of them happen from county to county, year to year. This year it is especially large in central Kentucky, next year it may be Western Kentucky or Georgia. Here's a map that shoes how the hatch moves from year to year, of course it's Virginia but you get the idea.
http://www.ext.vt.edu/pubs/entomology/444-276/444-276.html

An article with good info on KY--http://www.courier-journal.com/apps/pbcs.dll/article?AID=/20080531/NEWS01/805310509/1008

As to the fishing. Last Sunday we caught two 1 liter bottles full and fished elkhorn. We caught a fish every cast on those things. I was wanting to get some carp but they weren't feeding on top yet, maybe this weekend. Hook them through the main body a couple of times and add a split shot. They'll try to fly for a little while underwater but rarely do they make it to the bottom. Just wait a couple of weeks though, the noise of them will absolutely drive you insane!