Based on the latest information available, the Lost Valley Road boat ramp in Benton County, Missouri is a concrete boat ramp that is capable of accommodating various types of watercraft. The width of the boat ramp is not specified, but it appears to be wide enough to allow for easy access of boats and other watercraft.

The Lost Valley Road boat ramp services the Lake of the Ozarks, which is a popular recreational destination for boating, fishing, and other water activities. The Lake of the Ozarks is a large reservoir that covers over 54,000 acres and has over 1,150 miles of shoreline.

Boats and other watercraft that are permitted on the Lake of the Ozarks include motorized boats, jet skis, pontoon boats, sailboats, and kayaks/canoes. However, specific regulations and restrictions may apply depending on the type of watercraft and the area of the lake being used.

Overall, the Lost Valley Road boat ramp in Benton County, Missouri is a popular spot for launching boats and accessing the Lake of the Ozarks. It is important to check the latest information and regulations before using the boat ramp or navigating the lake to ensure compliance with local laws and safety guidelines.