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Vista Ridge Tunnel
The Vista Ridge Tunnels are highway tunnels through the Tualatin Mountains ("West Hills") of Portland, Oregon, United States. Located in the Goose Hollow, Portland, Oregon, Goose Hollow neighborhood, the tunnels pass through a hillside locally known as Vista Ridge which is a half mile (1 km) west of downtown Portland. Sunset Highway (Oregon), Sunset Highway, also known as U.S. Route 26 (Oregon), U.S. Route 26, is carried through the tunnels, three lanes in each direction. They are Oregon's busiest tunnels. The eastbound tunnel is 1001 feet (305 m) in length; the westbound tunnel is 949 feet (289 m). Both have 41 ft (12.5 m) of horizontal and 15.58 ft (4.75 m) of vertical clearance. The eastbound tunnel was completed in 1969, the westbound a year later. There is a six-percent grade (slope), grade through the tunnels. Most of the tunnels' lengths are straight, though they curve southward at the west ends 35°. The tunnels were built with ventilation shafts ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portland, Oregon
Portland (, ) is a port city in the Pacific Northwest and the list of cities in Oregon, largest city in the U.S. state of Oregon. Situated at the confluence of the Willamette River, Willamette and Columbia River, Columbia rivers, Portland is the county seat of Multnomah County, Oregon, Multnomah County, the most populous county in Oregon. Portland had a population of 652,503, making it the List of United States cities by population, 26th-most populated city in the United States, the sixth-most populous on the West Coast of the United States, West Coast, and the second-most populous in the Pacific Northwest, after Seattle. Approximately 2.5 million people live in the Portland metropolitan area, Portland metropolitan statistical area (MSA), making it the List of metropolitan statistical areas, 25th most populous in the United States. About half of Oregon's population resides within the Portland metropolitan area. Named after Portland, Maine, the Oregon settlement began to be po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
