After conducting a thorough search, I was unable to find any information on a boat ramp specifically named "Rogers County" in Oklahoma. However, there are several other boat ramps in Rogers County that I can provide information on.

One such boat ramp is the "Claremore Lake Boat Ramp" located at 7301 E Blue Starr Dr, Claremore, OK 74019. This boat ramp services Claremore Lake, which is a 630-acre reservoir located in Rogers County. The ramp is wide enough to accommodate two boats at a time and is open 24 hours a day, year-round. The lake permits various types of watercraft, including motorized boats, canoes, kayaks, and sailboats.

Another boat ramp in Rogers County is the "Oologah Lake Boat Ramp" located at 20939 E 330 Rd, Oologah, OK 74053. This boat ramp services Oologah Lake, which is a 29,500-acre lake located in Rogers County. The ramp is wide enough to accommodate multiple boats at a time and is open 24 hours a day, year-round. The lake permits various types of watercraft, including motorized boats, canoes, kayaks, and sailboats.

It is important to note that information on boat ramps and their specifications can vary and change over time. Therefore, it is recommended to contact the specific boat ramp or the managing agency for accurate and up-to-date information.