According to the latest information available, the US 67 boat ramp in Somervell County, Texas is a concrete boat ramp that is 16 feet wide. It services the Brazos River, which is approximately 840 miles long and runs through Texas. The ramp is located at latitude 32.27181625 and longitude -97.66391754, making it easily accessible for boaters in the area.

As for the types of craft permitted on the water, it appears that the Brazos River is open to a variety of watercraft, including power boats, kayaks, canoes, and other small watercraft. However, it is always a good idea to check with local authorities or signage at the boat ramp to ensure that your particular type of watercraft is allowed.

Overall, the US 67 boat ramp in Somervell County, Texas appears to be a well-maintained and convenient access point for boaters looking to explore the Brazos River.