Based on the latest information available, the boat ramp named Box Elder County is a concrete boat ramp located in the city of Brigham City in Box Elder County, Utah. The ramp is approximately 30 feet wide and can accommodate multiple watercraft at once.

The ramp provides access to Willard Bay, which is a large freshwater reservoir with a surface area of over 9,900 acres. This body of water is popular among boaters and anglers, and is known for its bass and walleye fishing.

As for the type of watercraft permitted on the water, Willard Bay allows motorized boats, sailboats, and personal watercraft such as jet skis. However, it is worth noting that certain size restrictions and speed limits may apply in certain areas of the reservoir.

Overall, the Box Elder County boat ramp provides a convenient and accessible entry point for boaters looking to explore the waters of Willard Bay.