Columbia River Bridge - Credit: Wikimedia Commons
Columbia River Bridge - Credit: Wikimedia Commons
The Columbia River Bridge at Wenatchee, Washington, also known as the Old Wenatchee Bridge, was built by the Washington Bridge Company in 1908, primarily as a means to carry irrigation water pipelines across the Columbia River. It was the first road bridge over the Columbia south of Canada. The bridge is a pin-connected cantilever truss, long, with one Pratt truss between two cantilever arms, with side arms and a girder span. The bridge was purchased by the Washington highway department for $182,000 for highway use. As originally built, the bridge carried a wide timber roadway, with additional ability to carry a street railway. However, the east approach to the bridge was built at a 6% grade, limiting its potential. Read more on Wikipedia
Source: en.wikipedia.org