Final answer:
The national road, also known as the Cumberland Road, crossed the Ohio River and the Wabash River, and passed through Maryland, West Virginia, Ohio, and Illinois.
Step-by-step explanation:
The national road, also known as the Cumberland Road, crossed several rivers and passed through three states. It started in Cumberland, Maryland and crossed the Ohio River in Wheeling, West Virginia.
It then went through Ohio and crossed the Wabash River in Vandalia, Illinois, before ending in Illinois. So, the national road crossed the Ohio River and the Wabash River, and passed through Maryland, West Virginia, Ohio, and Illinois.