Based on the latest information available, the boat ramp named Turnpike Drive Camden in Maine is a public boat ramp maintained by the Maine Department of Transportation. It provides access to Megunticook Lake, a popular destination for boating, fishing, and other water sports activities.

The boat ramp at Turnpike Drive Camden is approximately 24 feet wide, which is wide enough to accommodate most types of watercraft, including small boats, kayaks, canoes, and other similar vessels. It is also equipped with a concrete surface and a gradual slope, making it easy for boaters to launch and retrieve their watercraft.

As for the types of watercraft permitted on Megunticook Lake, there are certain restrictions in place to protect the environment and ensure the safety of all users. According to the Maine Department of Inland Fisheries and Wildlife, motorized boats are allowed on the lake, but there are strict speed limits and noise limits in place to minimize disturbance to wildlife and other users.

In addition, there are also regulations in place regarding the use of personal watercraft (PWCs) such as jet skis and wave runners. These types of watercraft are permitted on Megunticook Lake, but they must be operated in accordance with Maine state law and all applicable safety regulations.

Overall, the boat ramp at Turnpike Drive Camden provides convenient and safe access to one of the most popular waterways in Maine. Boaters and other water sports enthusiasts can enjoy a wide range of activities on Megunticook Lake, while also respecting the environment and other users of the lake.