SR‑113 begins at the intersection of South 3600 West/Charleston Road and US‑189 on the northeast shore of Deer Creek Reservoir on the southwestern corner of Charleston. From its southern terminus, the route heads north as a two-lane road along South 3600 West/Charleston Road to pass through the length of the west side of Charleston. Along the way it connects with the west end of West 3600 South before passing by the west side of the Charleston City Park. On the north edge of the park, the route connects with the west end of West 3400 South, and then the west ends of West 3300 South, West 3150 South, and West 3000 South. The route then connects with a gravel road that heads west to the Deer Creek State Park Charleston Day Use Area, followed by a connection with the west end of West 2400 South on the northwest edge of town. Immediately after leaving Charleston, the route enters the northeastern part of Deer Creek State Park and makes its first crossing over the Provo River. The route then connects with a Rest Area before a level crossing over the single set of tracks for the Heber Valley Railroad, just west of the Charleston station. Immediately after crossing the tracks, the route connects with the east end of Tate Lane, the road to the Soldier Hollow area of the Wasatch Mountain State Park. The route also begins running along the border of Midway, until it fully enters the city, about north of the railroad tracks. Just after entering Midway, SR‑113 crosses over the small Snake Creek, as it passes by some recently constructed residential developements to the west. Continuing north the route connects with the east end of West 970 South and the west end of East 850 South. Passing briefly back into an unincorporated area of Wasatch County, the route connects with the southeast end of South Appenzell Lane, before re-entering Midway. Continuing north through Midway, SR‑113 connects with the west end of East 500 South, the west end of East 450 South, and the east end of West 350 South. After crossing 300 South and 100 South, the route reaches Main Street at a junction with the southern end of Utah State Route 222. At this intersection, the route turns east along East Main Street, while North Center Street continues north, and West Main Street continues west as SR‑222 towards the Homestead Resort, the Zermatt Resort, and the main part of Wasatch Mountain State Park. , April 2016 Heading east along the three-lane East Main Street, SR‑113 passes through the east end of Midway's business district. After crossing 100 East, the area becomes mix of residences and businesses as it crosses 200 East and connects with the south end of North 300 East and reaching 400 East/River Road. Shortly after connecting with the northern ends of South 500 East, South 580 East, and South 700, SR‑113 curves southeast and runs along the eastern border of Midway until it reaches its connection with the north end of South 950 East. The route then leaves Midway, and begins curving back to an eastern direction, before reaching the north end of South 1000. The route then promptly makes its second crossing over the Provo River. Just south of the bridge over the Provo River is the Legacy Bridge. East of the river, the route completes it curve to the east and connects with the south end of South Ryan Lane. Heading east, SR‑113 connects with the south end of South 1750 West before crossing over Spring Creek and then continues east to connect with the north end of South 1140 West. East of South 1140 West SR‑113 runs along the border of Heber City until it crosses the Sagebrush and Spring Creek Canal. East of the canal the route fully enters Heber City and runs along East 100 South for the remainder of its course. Shortly after connecting with the north end of South 780 West, the route begins a slight jog to the south and then crosses South 600 East. Just after crossing South 500 East, the route completes its slight jog to the south, crosses South 400 East, and begins passing through three blocks of residential areas. After crossing South 300 East, South 200 East, and South 100 East, the route passes through a block of the business district before reaching its northern terminus at South Main Street. East 100 South continues east to end at South 5000 East, while South Main Street continues south to the Provo Canyon Junction on the south end of town and north past the east side of the Jordanelle Reservoir to Silver Creek Junction, where it connects with Interstate 80.
History
The route was first defined by the Utah State Legislature in 1931 and has not seen any significant changes since then. In 1935, the legislature designated State Route 169, which began on US-40 one block north of the eastern terminus of SR-113. From there, that route ran east along Center Street and Lake Creek Road to Lake Creek. It was decommissioned in 1953.
