Unfortunately, the coordinates provided for the boat ramp named Imperial County in Arizona are incorrect. The coordinates provided actually point to an area in California, not Arizona. Therefore, it is not possible to provide accurate information about this specific boat ramp.

However, Imperial County is a county located in southeastern California that does have several boat ramps that provide access to the Imperial Valley's various waterways. Some of the bodies of water in the region include the Salton Sea, the Colorado River, and several canals and waterways.

To obtain information about a specific boat ramp in Imperial County, it is recommended to contact the Imperial County Parks and Recreation Department or the local agency responsible for managing the body of water in question. They should be able to provide accurate information regarding the type of boat ramp, width, permitted watercraft, and other relevant details.