U.S. Route 93 in the state of Arizona is a United States Numbered Highway that begins in Wickenburg and heads north to the Nevada state line at the Mike O'Callaghan–Pat Tillman Memorial Bridge. As part of a proposal by municipal leaders in Nevada and Arizona, the highway could be replaced by Interstate 11 (I-11). Route description The southern terminus of US 93 is located at a junction (rebuilt and relocated between February 2008 and February 2010) with US 60 in Wickenburg, a small town about northwest of Phoenix. It heads towards the northwest from this junction to an intersection with SR 89 (former US 89) across the Maricopa – Yavapai county line just northwest of town. SR 89 heads northeast to Prescott while US 93 continues its northwesterly heading, as a mainly two-lane highway with passing lanes every few miles. US 93 continues to the northwest to a junction with SR 71 at a diamond interchange southwest of Congress. As it continues to the northwest through this scenic but remote rural area, the highway is known as the Joshua Forest Parkway of Arizona. The highway widens to four lanes at the Santa Maria River and continues towards the northwest past a junction with SR 97 on its way to the town of Wikieup. Before reaching that town, it passes the tiny settlement of Nothing (just across the Yavapai – Mohave county line) and crosses Burro Creek over dual steel arch bridges about over the creek. After passing through Wikieup, US 93 curves north to follow the western edge of the Big Sandy River and one of its tributaries, Knight Creek, on its way toward Interstate 40 (I-40). At I-40's exit 71, US 93 merges with the Interstate freeway and shares the same alignment heading west until they reach Kingman. The two split in Kingman with I-40 heading towards the south to skirt the southern end of the Black Mountains before curving west and into California and US 93 heading northwest towards Las Vegas. A project is currently underway to design and builds a free-flowing connection between I-40 and US 93 in the western section of Kingman, to avoid the current diamond interchange (exit 48) at Beale Street and the approximately one-mile section of congested, undivided roadway that US 93 motorists must navigate before the road widens back into a four-lane divided facility. Northwest of Kingman and just over Coyote Pass,