After conducting research, I was unable to find any information about a boat ramp named Marina Drive 298 in Montgomery County, North Carolina. It's possible that the location or name has changed, or it may be a private boat ramp for a specific community or organization.

Without more specific details, it's impossible to determine what kind of boat ramp it is, how wide it is, what body of water it services, or what kind of watercraft are permitted on the water.

If more information becomes available, I would be happy to revisit this topic and provide a more thorough response.