List of Interstate Highways in Washington
Interstate 90 (I-90) is the longest primary Interstate Highway in Washington, which connects Seattle to Spokane and the Idaho border, measuring , while I-82, connecting the Oregon border city of Umatilla to Elensburg via Yakima, is the shortest at . The longest auxiliary Interstate Highway in Washington is I-405, a bypass of Seattle through the Eastside, at , and the shortest is I-705, a spur into downtown Tacoma, at . One route, I-605, has been proposed over the years to form another Eastside bypass, however there are no plans to construct this fifth auxiliary route.
After passage of the Federal Aid Highway Act of 1956, which formed the Interstate Highway System, the American Association of State Highway Officials had approved I-5 and I-90 across Washington on August 17, 1957. I-82 was approved on October 17, 1957, two months after I-5 and I-90, as part of a addition to the Interstate Highway System.
Lincoln Highway (Omaha)
The Lincoln Highway in Omaha, Nebraska, runs east–west from near North 183rd Street and West Dodge Road in Omaha, Nebraska, towards North 192nd Street outside of Elkhorn. This section of the Lincoln Highway, one of only that were paved with brick in Nebraska, is one of the most well-preserved in the country. The roadway was listed on the National Register of Historic Places in 1984. The Lincoln Highway was the first road across the United States, traversing coast-to-coast from Times Square in New York City to Lincoln Park in San Francisco, California.