Based on the latest information available, the Lewis County boat ramp in Washington is a public boat ramp that provides access to the Cowlitz River. It is located at coordinates 46.48139191 latitude and -122.09471893 longitude. The boat ramp is reported to be 2-lanes wide, which should provide ample space for launching and retrieving boats.

The Cowlitz River is a popular destination for recreational boating, fishing, and other water-based activities. It is a large river that flows through several counties, including Lewis County. The body of water that the Lewis County boat ramp services is therefore the Cowlitz River.

As for the types of craft that are permitted on the water, the latest information suggests that the Cowlitz River is open to a variety of watercraft. This includes motorized boats, fishing boats, kayaks, canoes, and other types of personal watercraft. However, it is important to note that there may be certain restrictions or regulations in place depending on the time of year, the specific location on the river, and other factors. Boaters should always consult with local authorities and follow all applicable laws and guidelines to ensure a safe and enjoyable experience on the water.