Benton City – Kiona Bridge

The steel box girder and cable-stayed bridge stretches 400 feet across the Yakima River, carrying two lanes of Washington State Route 225.

The current bridge opened in 1957, replacing two previous structures that connected Benton City and Kiona since 1901 at a location 300 feet downstream.

The Washington Heritage Register included this structure in 2002, recognizing its engineering design as the first steel box girder bridge in the United States.

The structure includes 4-foot-wide sidewalks raised 10 inches above the roadway surface and connects to Interstate 82 and U.S. Route 12.

The bridge design came from Homer M. Hadley, with construction costs reaching 140,000 dollars, equivalent to 1.2 million dollars in current value.

Location: Washington

GPS coordinates: 46.25290,-119.47500

Latest update: November 28, 2025 14:29