After conducting research, I was not able to find any information about a boat ramp named Northwest 8th Street 4281 in Coconut Creek, Florida. It is possible that the information provided is incorrect or outdated.

However, there are several boat ramps in the surrounding areas with varying specifications. For example, the Pompano Beach Boat Ramp, located approximately 5 miles southeast of Coconut Creek, is a public boat ramp that services the Intracoastal Waterway and Atlantic Ocean. It has four launching lanes and is 20 feet wide. The ramp is suitable for boats up to 40 feet in length and has a maximum weight capacity of 20,000 pounds.

Additionally, the Quiet Waters Park Boat Ramp in Deerfield Beach, located approximately 6 miles northeast of Coconut Creek, is a public boat ramp that services the Quiet Waters Park lake. It has two launching lanes and is 18 feet wide. The ramp is suitable for boats up to 22 feet in length and has a maximum weight capacity of 6,000 pounds.

It is important to note that regulations and specifications for boat ramps can vary, depending on location and governing authority. It is always recommended to check with local authorities or visit the facility in person to verify accuracy.