After conducting research, it appears that there is no specific boat ramp named "King Drive Nueces County" in Texas. However, there are several boat ramps in Nueces County that service different bodies of water, including the Gulf of Mexico, Nueces Bay, and Corpus Christi Bay.

One of the most popular boat ramps in Nueces County is the Redfish Bay Boat House, which is located in Aransas Pass and services Redfish Bay and the surrounding areas. This boat ramp is approximately 30 feet wide and can accommodate a variety of watercraft, including motorboats, sailboats, and kayaks. It also offers a fuel dock, bait shop, and a variety of amenities for boaters.

Another popular boat ramp in Nueces County is the Padre Balli Park Boat Ramp, which is located in Corpus Christi and services the Gulf of Mexico. This boat ramp is approximately 24 feet wide and can accommodate a variety of watercraft, including fishing boats, kayaks, and jet skis. It also offers a fish cleaning station, picnic facilities, and a playground for families.

Overall, the type of boat ramp and the width of the ramp will vary depending on the specific location and body of water being serviced. It is important to research the specific boat ramp and regulations for any body of water before launching any watercraft.