The Oregon-Washington Bridge, also known as the Interstate Bridge, is a historic bridge that spans the Columbia River between Portland, Oregon and Vancouver, Washington. Built in 1917, the bridge has been an important transportation link between the two states for over a century.
The bridge was designed by Joseph Strauss, who would later go on to design the Golden Gate Bridge in San Francisco. Strauss was known for his innovative designs and the Oregon-Washington Bridge was no exception. The bridge was the first to use a vertical lift span, which allowed ships to pass underneath without disrupting traffic on the bridge.
The bridge is a marvel of engineering and design. It is over 8,000 feet long and has a main span of 540 feet. The vertical lift span is 200 feet tall and can be raised to allow ships up to 200 feet tall to pass underneath. The bridge is made of steel and concrete and is supported by massive concrete piers that are sunk deep into the riverbed.
The Oregon-Washington Bridge has played an important role in the history of the Pacific Northwest. It was built during a time of rapid growth and development in the region and helped to connect the two states. The bridge was also an important link in the transportation of goods and people between the two states.
Over the years, the bridge has undergone several renovations and upgrades to keep up with the changing needs of the region. In the 1950s, the bridge was widened to accommodate more traffic. In the 1980s, the lift span was replaced with a new, more efficient design.
Today, the Oregon-Washington Bridge is still an important transportation link between Portland and Vancouver. It carries over 130,000 vehicles per day and is a vital link in the region’s transportation network. The bridge is also a popular destination for tourists and locals alike, offering stunning views of the Columbia River and the surrounding area.
In addition to its transportation and recreational uses, the Oregon-Washington Bridge is also an important piece of history. The bridge has been designated a National Historic Civil Engineering Landmark by the American Society of Civil Engineers. It is a testament to the ingenuity and innovation of the engineers and designers who built it over a century ago.
Overall, the Oregon-Washington Bridge is a remarkable piece of engineering and design. It has played an important role in the history of the Pacific Northwest and continues to be a vital link in the region’s transportation network. Whether you’re a local or a tourist, a visit to the Oregon-Washington Bridge is a must-see experience.