Navajo Bridge crosses the Colorado River's Marble Canyon near Lee's Ferry. Apart from the Glen Canyon Bridge a few miles upstream at Page, Arizona, it is the only roadway crossing of the river and the Grand Canyon for nearly 600 miles (970 km). Spanning Marble Canyon, the bridge carries northbound travelers to southern Utah and to the otherwise inaccessible portions of Arizona north of the Colorado River, such as the North Rim of Grand Canyon National Park.

Prior to the construction of the first Navajo Bridge, the only river crossing from Arizona to Utah was at nearby Lee's Ferry, where the canyon walls are low and getting vehicles onto the water is relatively convenient. The ferry offered only unreliable service, however, as adverse weather and flooding regularly prevented its operation.

Original bridge

Dedicated: 1929-06-14 to 1929-06-15 after two years of construction
Total length: 834 ft (254 m)
Steel arch length: 616 ft (188 m)
Arch rise: 90 ft (27.4 m)
Height above river: 467 ft (142 m)
Width of the roadway: 18 ft (5.5 m)
Amount of steel: 2.4 million lb (1,089,000 kg)

Amount of concrete: 500 yd³ (385 m³)
Amount of steel reinforcement: 82000 lb (37,000 kg)

Construction cost: $390,000

New bridge

The main pin of the new bridge was set 1994-10-14, after seven months of construction.
Total length: 909 ft (277 m)
Steel arch length: 726 ft (221 m)
Arch rise 90 ft (27.4 m)
Height above river: 470 ft (143 m)
Width of the roadway: 44 ft (13.4 m)
Amount of steel: 3.9 million lb (1,769,000 kg)

Amount of concrete: 1,790 yd³ (1370 m³)
Amount of steel reinforcement: 434,000 lb (197,000 kg)

Construction cost $14,700,000