Stone Bridge Boat Ramp is an asphalt and pre-cast cement slab ramp providing access to the Sakonnet River near Portsmouth, with 12 parking spaces and a high dock.

The narrow channel here experiences strong tidal currents and can be busy, but heading south opens to broader waters while heading north offers access to The Cove's inlets or Mount Hope Bay.

Be prepared for strong southwest winds that typically develop in the morning and afternoon, which can produce significant wave conditions.