Based on the latest information available, the boat ramp named Old US Hwy 29 Anderson County in South Carolina is a concrete boat ramp that is approximately 12 feet wide. It services the waters of Lake Hartwell, which is a large reservoir located on the border of South Carolina and Georgia. This boat ramp is maintained by the Anderson County government and is open to the public.

According to the South Carolina Department of Natural Resources, Lake Hartwell is known for its great fishing opportunities and is home to a variety of fish species such as largemouth and spotted bass, crappie, and catfish. The lake is also used for recreational boating, and a variety of watercraft are permitted on the lake, including powerboats, sailboats, canoes, and kayaks.

It is important to note that rules and regulations may vary depending on the specific body of water and local government guidelines. Boaters should always check with local authorities and review any posted signage or rules before launching their watercraft.