After conducting research, there is no specific information about a boat ramp named US 59 in Live Oak County, Texas. However, there is a boat ramp located in Live Oak County that services Choke Canyon Reservoir, which is located near US Highway 59.

The boat ramp is known as Choke Canyon State Park - South Shore Boat Ramp, and it is a concrete ramp that is 4-lanes wide. This ramp services Choke Canyon Reservoir, which is a large body of water spanning over 25,500 acres.

According to the Texas Parks and Wildlife Department, all types of boats are allowed on Choke Canyon Reservoir, including canoes, kayaks, sailboats, and motorized boats. There are no specific restrictions on the type of watercraft allowed on the reservoir, but all boats must comply with the state's boating laws and regulations.

In summary, the boat ramp located in Live Oak County that services Choke Canyon Reservoir is called Choke Canyon State Park - South Shore Boat Ramp. It is a 4-lane concrete ramp that services a large body of water spanning over 25,500 acres. All types of watercraft are allowed on the reservoir.