Final answer:
About 66% of the Ohio River is accessible to large boats. The river has a minimum depth of about 9 feet and is maintained by the U.S. Army Corps of Engineers for safe navigation.
Step-by-step explanation:
The Ohio River is navigable by large boats for most of its length. Approximately 66% of the Ohio River is accessible to large boats. This means that they can travel on the river for a significant distance without encountering any major obstacles or navigational challenges.
Large boats can navigate the Ohio River because it has a minimum depth of about 9 feet (2.7 meters) under normal flow conditions. In addition, it is maintained by the U.S. Army Corps of Engineers to ensure that the river is free of any significant obstructions that could impede navigation.
For example, along the entire length of the river, commercial navigation channels are maintained at a depth of at least 9 feet to allow for the safe passage of large boats, barges, and other vessels. This helps to facilitate transportation and trade along the Ohio River.