Isaac Lee Patterson Bridge

The Oregon State Highway Department awarded the $568,181.00 ($10.4 million in 2023 dollars[2]) construction contract to the Mercer, Fraser Company of Eureka, California, on January 16, 1930.

[3] The remote location of the building site presented a significant challenge, with reinforcing steel shipped southward from Port Orford, and built a concrete plant on the north bank of the river.

[4] The detailing of the bridge incorporates Art Deco motifs, with prominent pylons at the ends with stepped Moderne elements and stylized Palladian windows crowned by sunbursts.

[4] The bridge has required extensive preventive maintenance to mitigate deterioration due to the location's salt air.

[4] Construction of the bridge required the excavation of 10,174 cubic yards (7,779 m3) of earth and consumed 27,016 linear feet (8,234 m) of piling, 15,591 cubic yards (11,920 m3) of concrete, 1,764,981 pounds (800,582 kg) of reinforcing steel, and 114,109 pounds (51,759 kg) of structural steel.

Entrance pylons