Based on the available information, the boat ramp named Columbia Road Columbia is located in Virginia at latitude 37.74933243 and longitude -78.16268921.

This boat ramp is reportedly situated on the James River, which is a large river that runs through Virginia. It is unclear whether the boat ramp is located on the river itself or on a side channel or inlet.

As for the type of boat ramp, there is little information available. However, it is likely that the ramp is a public access ramp, meaning that it is open to the public for use.

Regarding the width of the boat ramp, this information is also unclear. However, most public access boat ramps are designed to accommodate a variety of watercraft and are typically at least 10 to 12 feet wide.

In terms of the types of watercraft permitted on the water, this information is not clear from the available data. However, most public access boat ramps do not have specific restrictions on the types of boats allowed to launch, as long as they meet certain safety requirements (such as having proper flotation devices on board). It is likely that a variety of watercraft are permitted at this ramp, including powerboats, sailboats, and kayaks or canoes.

Overall, without more detailed information, it is difficult to provide a complete picture of the Columbia Road Columbia boat ramp in Virginia. However, it appears to be a public access ramp located on the James River, likely accommodating a variety of watercraft.