Utah State Route 138

From its western terminus at exit 84 of I-80, northeast of the Stansbury Mountains, the route heads southwest (toward the mountain range), reaching the mining operation of Flux, then turns southeasterly. Upon entering the western side of Grantsville, the highway heads east (serving as Grantsville's Main Street) and turns to the northeast after leaving the city. It runs northeasterly until terminating where Parachute Lane meets the Tooele Midvalley Highway (SR-179). The route runs about with an additional on the Midvalley Highway back to I-80. With the exception of the segment between SR-112 and Sheep Lane, the route is included in the National Highway System. ==History==

Previous route 1938-1952 The State Road Commission of Utah first printed the designation of SR-138 in 1938 on a route connecting Grantsville north to Burmester, known today as Burmester Road. This first iteration of SR-138 was deleted from further state maps with the 1953 edition. Previous route 1970-2020 In the 1970 edition of the Utah Official Highway Map, I-80 appeared for the first time as a new route in Tooele County that bypassed a major section of existing state highway once dually designated as U.S. Route 50 Alternate and U.S. Route 40 but redesignated under the reprised name of SR-138. This was part of a broader highway naming reconfiguration that extended SR-36 beyond Mills Junction to Lake Point exit 99 on I-80. This version of SR-138, which connected to SR-36 at Mills Junction through Stansbury Park into Grantsville to exit 84 on I-80, remained the same for 50 years. In the May 2018 meeting of the Utah Transportation Commission, a motion passed to truncate the east end SR-138 to the future Tooele Midvalley Highway (SR-179). This was formalized with the completion of the segment of SR-179 between SR-138 and I-80 in 2021. The section of highway removed from SR-138 east of SR-179 has been renamed Pole Canyon Road which starts from Parachute Lane in Stansbury Park and terminates at Center Street in Lake Point, Utah. ==Major intersections==