Based on the available information, Lockwood Court 203 boat ramp is located in Annapolis, Maryland, with a latitude of 38.97271347 and a longitude of -76.48987579. It is a public boat ramp that provides access to the Severn River, which services the Chesapeake Bay.

The boat ramp is reported to be about 20 feet wide, which is wide enough to accommodate most small to medium-sized boats. However, it is always recommended to check the width and depth of the ramp before launching a boat, to ensure that it is suitable for the specific type and size of the vessel.

As for the type of craft that are permitted on the water, it is likely to vary depending on the rules and regulations set by the local authorities. However, in general, the Severn River and Chesapeake Bay are open to a wide range of watercraft, including sailboats, powerboats, canoes, kayaks, and other non-motorized vessels. Again, it is always important to check the local guidelines and restrictions before heading out on the water.

In summary, Lockwood Court 203 boat ramp is a public boat ramp located in Annapolis, Maryland, that provides access to the Severn River. It is reported to be about 20 feet wide and can accommodate a range of small to medium-sized boats. The Severn River and Chesapeake Bay are open to a variety of watercraft, subject to local rules and regulations.