The highway is used to access Grand Canyon National Park and is known for the Navajo Bridge.

Navajo Bridge and newer (1995) bridge of the same general construction, each built as unsupported cantilevers joined with a central pin.

Marble Canyon is also well known for the Navajo Bridge, where US Highway 89A crosses the Colorado River.

Later that year, the Navajo Bridge was completed at a point five miles (8 km) downstream, rendering the ferry obsolete.

A plaque honoring the Nevills was installed at Navajo Bridge in 1952.

Some steel arch bridges (such as the Navajo Bridge) are built using pure cantilever spans from each side.

Construction of the original Navajo Bridge began in 1927, and the bridge opened to traffic in 1929.

Only the Navajo Bridge near Page connects the rims by road in Arizona; this journey can take around five hours by car.

The latter form is common when the bridge is constructed as cantilever segments from each side as in the Navajo Bridge.

Later, other places to cross the Colorado were constructed, such as Lee's Ferry, Navajo Bridge and Boulder Dam.