Hi, There's a free ramp in the Black Rock section of Bridgeport at the end of Brewster Street. Google "Brewster Street Boat Ramp". The ramp is located right next to the Fayerweather Yacht Club, which is about a 1/2 mile sail out Black Rock harbor to the open Sound. There's a small, 10-car parking lot next to the ramp. I'm around the corner in Fairfield. We've got a pretty good cat scene here on Jennings Beach as well.

You can see the ramp here...
http://www.fayerweatheryachtclub.com/sitebuildercontent/sitebuilderpictures/FYCfromAir.jpg