| State: | UT |
| Type: | SR |
| Route: | 111 |
| Alternate Name: | 8400 West, Bacchus Highway |
| Section: | 117 |
| Map Custom: | yes |
| Length Mi: | 10.596 |
| Length Round: | 3 |
| Length Ref: | [1] |
| Established: | 1931 |
| Direction A: | South |
| Terminus A: | in West Jordan |
| Junction: | in West Valley City in Magna |
| Direction B: | North |
| Terminus B: | in Salt Lake City |
| Previous Type: | SR |
| Previous Route: | 110 |
| Next Type: | SR |
| Next Route: | 112 |
State Route 111 (SR-111) is a state highway in the U.S state of Utah that runs north–south across the west side of the Salt Lake Valley in Salt Lake County. It connects SR-201 in Magna to SR-209 in West Jordan in a span of 10.6miles. It is known as 8400 West and Bacchus Highway throughout the route's course, in respect of north to south.
Prior to 1969, SR-111 extended past SR-209 (then SR-48) and passed through Herriman before terminating at SR-71.
The route begins at a junction with SR-209 on the rural western end of West Jordan, near Copperton. It continues north as a two-lane road and curves northwest past its junction with 7800 South. The highway widens to four lanes by the time 5400 West terminates on the road. Past 5400 West, SR-111 turns north and passes the ghost town of Bacchus, where there is currently an industrial presence. SR-111 continues into Magna and cuts a path through the center of the town before terminating at SR-201, an expressway/freeway that connects the west-central fringes of the county to Salt Lake City.
Between the intersection of 5400 South and 4100 South, a brake check area is provided to northbound traffic.[1]
The entire route is included as part of the National Highway System.[2]
The state legislature created State Route 111 in 1931, running west from SR-71 in Draper to SR-68 in Riverton.[3] State Route 159, added in 1933, continued west from Riverton through Herriman to Lark and then turned north along the Oquirrh foothills to U.S. Route 50 (US-50), present-day SR-171 (3500 South), near Magna.[4] The two routes were combined as SR-111 in 1945,[5] and in 1957 the east end was extended north along 700 East, which had been SR-71, to 7700 South north of Sandy,[6] only to be truncated back to Draper in 1959 when SR-71 was again restored there.[7] In 1962, the northern terminus of SR-111 was extended north slightly from 3500 South (by then SR-171) to US-50 Alternate (now SR-201).[8] The final change was a major truncation in 1969, moving the south end of SR-111 to its present location near Copperton, at the New Bingham Highway (SR-48 until 2015, SR-209 since).[9] The portion of old SR-111 from SR-68 in Riverton to SR-71 in Draper became an extension of SR-71, but the remainder was removed from the state highway system.[10]