The Henness Pass Road boat ramp in Sierraville, California is a concrete boat ramp that provides easy access to the water for boaters. The ramp is approximately 16 feet wide and can accommodate boats of various sizes.

The body of water that the Henness Pass Road boat ramp services is the Yuba River. This river is known for its scenic beauty and offers excellent opportunities for fishing, kayaking, and rafting. The Yuba River is a popular destination for boaters in the Sierraville area.

According to the latest information available, the Henness Pass Road boat ramp permits motorized and non-motorized watercraft. This includes boats, canoes, kayaks, paddleboards, and other similar crafts. However, it is important to note that local regulations may apply, and boaters should check with the appropriate authorities before launching their craft.

In conclusion, the Henness Pass Road boat ramp in Sierraville, California is a concrete ramp that provides access to the Yuba River. It is approximately 16 feet wide and permits both motorized and non-motorized watercraft. It is a popular destination for boaters in the area and offers excellent opportunities for fishing, kayaking, and rafting.