According to the latest information available, the boat ramp named Auditorium Drive Redding in California is a single lane boat ramp with a concrete surface. It is approximately 20 feet wide and can accommodate small to medium-sized boats. The boat ramp services the Sacramento River, which is a major river in Northern California.

The Sacramento River is approximately 447 miles long and is an important water source for agriculture, industry, and urban areas in California. The river is also a popular destination for recreational activities such as boating, fishing, and water skiing.

As for the types of craft permitted on the water, it varies depending on the section of the river. In the lower section of the river, from the Red Bluff Diversion Dam to the Sacramento-San Joaquin Delta, larger boats are permitted. However, in the upper section of the river, from the Redding area to the Red Bluff Diversion Dam, only small to medium-sized boats are allowed due to the shallow waters and rapids.

In conclusion, the Auditorium Drive Redding boat ramp in California is a single lane concrete ramp that services the Sacramento River, which is a major source of water for Northern California. Small to medium-sized boats are permitted on the river, and the types of craft allowed vary depending on the section of the river.