Because the Oregon Coast is punctuated with so many rivers large and small, it is natural that you'll find a wide variety of bridges. The most famous of these are the bridges on Highway 101 that were produced by Conde McCullough in the 1930s, when the highway first became drivable from Astoria to the California border. Other important bridges include the bridge across the mouth of the Columbia, the highest coastal bridge between San Francisco and Seattle, and a number of covered bridges.
Nearly all of McCullough's original bridges remain in service on Highway 101, although the bridge over Alsea Bay at Waldport was replaced several years ago. The Oregon Department of Transportation works hard to maintain the existing bridges to preserve them for future generations.