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According to the official website of Webster County, Iowa, the boat ramp at 6th Avenue Northwest Fort Dodge is a concrete ramp that provides access to the Des Moines River. The website states that the ramp is 16 feet wide, which allows for boats of various sizes to be launched into the river.

The Des Moines River is a popular destination for boating and fishing in the area, and the website notes that a variety of watercraft are permitted on the river, including motorized boats, kayaks, canoes, and paddleboards. However, it is important to note that specific regulations may vary depending on the location and time of year, so boaters should consult local authorities for the most up-to-date information.

Overall, the boat ramp at 6th Avenue Northwest Fort Dodge appears to be a well-maintained and accessible facility for boaters looking to explore the Des Moines River in Iowa.