I need to find a launch on the Mississippi River in or near Davenport, Iowa to launch my 47 Fountain.
It is on a Myco tandem dually trailer so it needs to go pretty deep and I don't want to get stuck!
Anyone know of a ramp that would be safe?

No ramps in that area that can handle a boat of that size. The longest ramps that I've heard of to safely launch a larger boat like that are down by the baseball stadium which you would have to drive in the down town area and with a large boat like that I wouldnt think it would be very do able. Green gables has a 388 hustler that launches there but that is 10 feet shorter then you boat so that probably isnt safe either. They do store many big boats at green gables and put them in with a lift which I'm sure for some kind of fee they could put it in and out for you. Hope that helps you out and hope to see that beast on the river soon.

pook: just 500ft north of Dubuque Yacht Basin has a nice ramp but that may be too far from your intended destination.