There is a ramp on the Branchport side, Atlantic Ave and River Lane. I think this one is free.
There is another ramp on the Oceanport side at River St. Might be a charge for this one.
Take a look at this chart system, search for Long Branch, NJ and then zoom in to the river and look for "Ramp" on the chart.
http://demo.geogarage.com/noaa/There appears to be a number of ramps on the chart, but I would only be guessing that the are really there and free or not.
I lived in this area when a kid and am planning to go back for some "fond memories" crabbing soon, but I am not a local that knows the lay of the land, so maybe some of the locals will speak up.
Let us know how your outing goes.
