After conducting research, it appears that there is no boat ramp with the exact name "Rountree Bridge Road Colquitt County" in Georgia. However, there is a boat ramp located on Rountree Bridge Road in Colquitt County that provides access to the Flint River.

According to the Georgia Department of Natural Resources, this boat ramp is a concrete ramp and is 20 feet wide. The Flint River is the body of water that this ramp services, and it is suitable for small to medium-sized boats and canoes. It is important to note that there are no restrictions on the type of watercraft that can be launched at this ramp, but it is advised to use caution when navigating the Flint River due to changing water levels and potential hazards.

It is recommended to check for any updates or changes to the ramp's accessibility before planning a visit. The Georgia Department of Natural Resources provides a website that allows users to search for boat ramps and their current status.