State Route 177 in Utah
State Route 177, also known as the West Davis Corridor, is an under construction state route and freeway in Utah, located north of Salt Lake City. The highway should run from Farmington to Hooper, between Interstate 15 and the Great Salt Lake. State Route 177 runs through suburban Davis County. The planned length is 26 kilometers.
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The interstate is to connect to both Interstate 15 and the Legacy Parkway at Farmington, which run side by side on site. The highway runs west for a bit, then north along the shore of the Great Salt Lake. The highway opens up suburbs west of I-15, such as Syracuse. The route ends at Hooper, in Weber County. The northernmost section between Antelope Drive in Syracuse and Clinton is a super two.
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A second north-south route through the Wasatch Front has been planned for years. The Wasatch Front is an urbanized corridor 180 kilometers north and south of Salt Lake City. The first section of this, the Legacy Parkway, opened to traffic in 2008. After that, the Mountain View Corridor south of Salt Lake City was developed. The third project is the West Davis Corridor.
Davis County is growing rapidly. In 1970 it still had 99,000 inhabitants, in 2020 that had grown to 360,000 inhabitants. Weber County, further north, is also growing rapidly, from 126,000 in 1970 to 260,000 in 2020.
In 2013, the preferred alternative was developed, alternative B1 between Farmington and Hooper. The final EIS of the project was established on July 6, 2017 and the record of decision was issued on October 3, 2017.
Construction of the highway started on May 25, 2021. The highway is due to open in mid-2024.
State Route 18 in Utah
|Get started||St. George|
State Route 18 is a state route in the U.S. state of Utah. The road forms a north-south route from St. George to Beryl Junction in the southwest of the state and is 82 kilometers long.
State Route 18 begins in St. George at a junction with Interstate 15, not far from the Arizona state border. The SR-18 is then a five-lane road with center turn laneby St. George, a small town. The road has mostly traffic lights, but has an unusual connection with the Red Hills Parkway in northern St. George. The road then heads north through a mountainous desert area. The road has four more lanes until the Ledges Parkway at an exurban area well north of St. George. The road then leads through more sparsely populated areas, past the base of the 3,145-foot-tall Burger Peak. There are a few small villages on the route, but few other roads are crossed. The highest point of the road is south of Enterprise at 1,900 meters. The road then continues through a flat valley with circular irrigation and ends at Beryl Junction on State Route 56.
State Route 18 partly follows the Old Spanish Trail, an ancient trade route mapped by the Spanish in the 16th century, and heavily used by migrants to California between 1830 and 1850. The road was designated a state highway in 1918, and has been numbered State Route 18 since 1927.
The road had a somewhat insignificant importance for a long time, until St. George started to grow strongly from the 1980s. Traffic on State Route 18 increased sharply in the area surrounding the city. The road was widened to four lanes north of St. George in 2013. In 2006, the grade-separated connection with Ledges Parkway opened in an exurb area well north of St. George.
On May 17, 2015, an unusual junction between State Route 18 and the Red Hill Parkway opened on the north side of St. George, creating a grade-separated junction with traffic lights in the median strip. Traffic that wants to turn must therefore do so on the left.
24,000 vehicles travel daily between I-15 and St. George, peaking at 43,000 vehicles north of downtown St. George. This drops to 9,000 vehicles north of the city, later dropping to 1,600 vehicles south of Enterprise and 1,000 vehicles until Beryl Junction.