Based on the latest information available, the boat ramp named US 34;US 275 Mills County in Nebraska is a public boat ramp located at the confluence of the Platte River and the Missouri River. It is managed by the Nebraska Game and Parks Commission and provides access to the Missouri River for both motorized and non-motorized watercraft.

The boat ramp is approximately 16 feet wide and 80 feet long, with a gentle slope that makes it easy for boats to launch and retrieve. It also has a parking lot that can accommodate up to 50 vehicles and trailers.

The waterbody that the boat ramp services is the Missouri River, which is a major waterway in the United States that runs for over 2,300 miles from Montana to Missouri. The Missouri River is a popular destination for boating, fishing, and other water-based recreational activities.

As for the type of craft permitted on the water, there are no specific restrictions mentioned on the Nebraska Game and Parks Commission website. However, it is recommended that boaters check local regulations and safety guidelines before launching their craft.

In summary, US 34;US 275 Mills County boat ramp is a public boat ramp located at the confluence of the Platte River and the Missouri River in Nebraska. It is approximately 16 feet wide and 80 feet long and provides access to the Missouri River for both motorized and non-motorized watercraft. There are no specific restrictions on the type of craft permitted on the water, but local regulations and safety guidelines should be followed.