According to the latest information available, the boat ramp named Highland Lake is located in Winchester, Connecticut at a latitude of 41.92252731 and a longitude of -73.08457947. This boat ramp is a concrete ramp that provides access to the Highland Lake.

The width of the boat ramp is not mentioned in the available information, but it is reported to have a paved parking lot that can accommodate 50 vehicles. The parking lot also has provisions for trailers and is reported to have a fee for parking.

Highland Lake is a freshwater lake that covers an area of 444 acres and spans a length of 3.12 miles. The lake is a popular destination for recreational activities such as boating, fishing, swimming, and water skiing. It is also home to a variety of fish species, including brown trout, largemouth bass, and yellow perch.

As for the kind of craft permitted on the water, the latest information indicates that Highland Lake permits the use of boats with electric motors, canoes, kayaks, and sailboats. However, gas-powered boats are not allowed on the lake.

In conclusion, Highland Lake boat ramp is a concrete ramp with a parking lot that accommodates vehicles and trailers. The ramp provides access to the Highland Lake, a freshwater lake that permits the use of boats with electric motors, canoes, kayaks, and sailboats.