How deep is Niagara Falls?

Depth of Niagara Falls

The deepest part of the Niagara River is located right below the falls, with a depth that matches the falls' height at 52 meters (170 feet). The Upper Niagara River stretches approximately 35 kilometers (22 miles) from Lake Erie to the beginning of the Cascade Rapids, which are situated 1 kilometer (0.6 miles) downstream.