A large number of minor routes in Utah, United States, were deleted by the State Legislature in 1969. This was by far the largest mass-decommissioning of highways in the history of Utah.

State Route 19 (1927–1969)

The State Road Commission designated a state highway connecting Cedar City with Lund on August 2, 1912. The purpose was to connect Cedar City with the nearest railroad station, that of the Los Angeles and Salt Lake Railroad (Union Pacific Railroad) at Lund. A connecting road—now known as Gap Road—running west from the county seat at Parowan through Hieroglyphic Canyon (now Parowan Gap) to the Cedar City–Lund road was added to the state highway system on December 21, 1915. In 1919, the state legislature redefined the state highway system to include only a short list of roads and any federal aid projects. The road to Cedar City was kept since it was improved with federal aid, and the road to Parowan was dropped, but restored in 1921.

The Union Pacific Railroad began to promote a "circle tour" connecting Bryce Canyon National Park, Cedar Breaks National Monument, Zion National Park, Pipe Spring National Monument, and the North Rim of the Grand Canyon National Park in 1922. A new Cedar City Branch from Lund shortened the off-railroad distance, allowing the Utah Parks Company, a Union Pacific subsidiary that operated the tour buses and park lodging, to begin at Cedar City. Passenger trains on the branch usually operated only during the summer, however, while railroad-operated bus service on the Lund-Cedar City state highway ran year round.

The state legislature designated the roads connecting Lund to SR-1 at both Cedar City and Parowan as State Route 19 in 1927, and in 1931 the Parowan branch was split off, first as SR-128 and then in 1933 as State Route 127. A second connection between SR-19 and SR-1, following Midvalley Road past Enoch, became State Route 199 in 1935 but was given back to the county in 1943. SR-127 was removed from the state highway system in 1953. This route was deleted in 1969, with the route number immediately reused for the road for old US-6 through Green River.

State Route 50

State Route 50 was originally a branch of SR-122, but was split off as its own route in 1935, running from Wattis southeast to SR-122 east of Hiawatha (the number was not used before this because of US-50). This route was deleted in 1969, with the route number immediately reused for the road between Roy and Ogden (Riverdale Road), which was subsequently renumbered to SR-26 as part of the 1977 Utah state route renumbering in order to avoid confusion with US-50.

State Route 53 State Route 53 connected SR-8 (now US-6/US-191) at Wellington with SR-6 (now US-40) west of Myton via Ninemile Canyon Road. The road was designated on January 10, 1916 as a branch of SR-8, and was renumbered as SR-53 in 1931. In 1941, State Route 207, connecting Price to the Carbon County Regional Airport, was created. In 1945, SR-53 was rerouted to end in Price, replacing SR-207. In 1953, SR-53 was rerouted back to its old route which ended in Wellington. The highway was cancelled in 1969; the number was immediately reused to replace part of SR-37 in Ogden after its 1969 deletion.

State Route 54

State Route 54 was created as a renumbering of a branch of SR-12 to Tropic in 1931. That same year, a new State Route 120 was created, continuing the road from Tropic to Henrieville, and in 1935 it became part of SR-54. Another road was also added to the state highway system in 1914, connecting SR-22 at Widtsoe with Escalante, and it was numbered State Route 23 in 1927. An extension took SR-23 northeast to Boulder in 1941, and in 1947 SR-54 absorbed SR-23, with the Widtsoe-Escalante road dropped in favor of Henrieville-Escalante. State Route 117, running southeast from SR-24 near Teasdale to Grover, became a state highway in 1931, and was extended south to Boulder in 1957, becoming part of SR-54 in 1966.Utah Department of Transportation, Highway Resolutions:  , updated November 2007, accessed May 2008 In 1969, the section to the north limit of Boulder (at the Dixie National Forest boundary) became part of SR-12, and the rest was dropped. The number was reused in 1971 for a road from I-15 to Mona. In 1985, SR-12 was extended back north from Boulder to SR-24, using a different route than old SR-117 north of Grover.

State Route 55

State Route 55 connected Cedar Breaks Junction on SR-14 to the south boundary of Cedar Breaks National Monument, a distance of about . This route was designated on June 17, 1927 as part of SR-14, and split in 1931. It was withdrawn as a state route in 1969 and re-designated as part of SR-143. Later, in 1985, this route was split off from SR-143 and designated as a distinct highway, SR-148 (previous SR-148 was also removed in 1969), while SR-143 was extended to run along the rest of Panguitch Lake Road, north and east of Cedar Breaks until US-89 in Panguitch. SR-148 now follows the same route of former SR-55. The SR-55 route number was reused in 1975 as a business loop for US-6 in Price.

State Route 58 State Route 58 was transferred from State Route 1 (US-91) on September 27, 1965, consisting of the old road through Kanarraville, between the present exits 42 and 51 of I-15. It was deleted in 1969 and immediately reassigned to old SR-2 (US-40) through Wendover.

State Route 63A State Route 63A ran from SR-63 (modern US-50) in Scipio to SR-1/I-15. This was created in 1953. but was deleted in 1969.

State Route 64 State Route 64 - River Road from the Arizona state line north to SR-1 (US-91) in St. George - was added to the state highway system on May 12, 1931. It initially ran through St. George via 700 South, 700 East, 300 South, and 200 East, but was moved to use 700 East all the way to SR-1 (100 North) on January 25, 1963. After its deletion in 1969, the number was not reassigned until 1975, when it was used on what had been a spur of SR-26 through Holden.Utah Department of Transportation, Route 64 history, updated November 2008

State Route 67

State Route 67 served Dixie College in St. George connecting US-91 (SR-91, now SR-34) to the college. It was created in 1935 as SR-191, renumbered as SR-181A in 1945, and as SR-67 in 1962. As part of the renumbering of highways serving state institutions, it was renumbered as SR-281 in 1969. The 67 route number was reused in 1975 from US-6 to SR-36 in Tintic Junction. This was eliminated in 1991 and transferred to SR-36. Old SR-36 was removed from the state highway system. The 67 route number was reused in 2008 for the newly built Legacy Parkway.

State Route 76

The road from Parowan northeast through Paragonah and southwest through Summit was added to the state highway system in 1910,Utah Department of Transportation, Highway Resolutions:  , updated September 2007, accessed May 2008 and in the 1920s it became part of SR-1 and US-91.Rand McNally Auto Road Atlas, 1926 In 1968, with the construction of I-15 in the area imminent, SR-1 was moved to the proposed bypass, and the old route of SR-1 became State Route 38 (I-15 near Summit to Center Street in Parowan), SR-143 (Center Street to near 500 North in Parowan, and then continuing to I-15), and State Route 76 (near 500 North in Parowan to I-15 near Paragonah). However, the state legislature did not concur with the latter, and the old road through Paragonah was maintained only until I-15 was completed.Utah Department of Transportation, Highway Resolutions:  , updated November 2007, accessed May 2008 Construction of I-15 was finished by 1975, and included a second Parowan interchange that had not been in the 1968 plans. SR-143 was rerouted to turn south on SR-38 (old SR-1) in Parowan and west on 200 South to the new interchange, and the remainder of SR-38 was removed from the state highway system. (The 1968 extension of SR-143 was redesignated SR-274.)Utah Department of Transportation, Highway Resolutions:  , updated October 2007, accessed May 2008 The road from Parowan through Paragonah to I-15 (former State Route 76) was restored to the state highway system in 1978 as SR-271.Utah Department of Transportation, Highway Resolutions:  , updated December 2007, accessed May 2008

The route number was reused in 1977 for former SR-10 between SR-72 and I-70 at Fremont Junction in Sevier County.

State Route 78 State Route 78 ran from SR-8 in Orem east to SR-7 at Edgemont along 800 South.Utah Department of Transportation, Route 114 history, updated November 2008 It was added as a state highway on May 14, 1935, and extended west to SR-114 at Vineyard until 1953. The number was not reused until the 1977 renumbering, for former SR-163.

State Route 86

State Route 86 ran from SR-6 in Bridgeland north via Upalco and Altamont to Altonah. It was added as a state highway on May 14, 1935. In 1964, the portion from Upalco to Altamont was transferred to SR-87, and the portion from Altamont to Altonah was transferred to former SR-221, leaving SR-86 with only about 10 miles of road. This short remainder was deleted in 1969, and the number was reused in 1975 to designate a highway that currently runs from Henefer to I-84.

State Route 90 State Route 90 was the second state route in Utah to be numbered 90. Established in 1947, it ran from US-191 west on 25800 North to Portage, a distance of approximately 2.3 miles. This was created in exchange for deleting the first SR-90, which went from SR-1 near the north line of Iron County southeast to SR-20, and was moved north to end at SR-11 rather than SR-20 in 1943 (this is now Freemont Road and Dog Valley Road). The second SR-90 was deleted in 1969. The number was reused in 1975, when it was used to renumber the spur of SR-85 in Brigham City, itself a bypassed routing of US-91.

State Route 91 State Route 91 was established May 14, 1935, and ran from Fairview at SR-32 (now US-89) northerly to Milburn. It was deleted in 1969 and the route number was reused in 1977 as the legislative designation for US-91. The road is now known as the Fairview Milburn Highway.

State Route 92 State Route 92 (SR-92) was established 1953 and ran from SR-155 north of Cleveland to Elmo along Elmo Road. The number was not reused until the 1977 renumbering, for former SR-80.

The original SR-92 had been established May 14, 1935, and ran from Elmo to SR-10 (north-northwest of Elmo), but was extended south to SR-155 in Cleveland in 1943. (That entire route ran along what is now known as Cleveland Road.) The original SR-92 was decommissioned in 1947, but the southern extension of the original route was used as the routing for the second version of SR-92 that was established in 1953.

State Route 94 State Route 94 was established May 14, 1935 and ran from Thompson north to Sego. The number was reused immediately on the continuation of this road from I-70 to Thompson.

State Route 98 State Route 98 was established May 14, 1935 and ran from Beryl Junction (SR-56 at SR-18 between Newcastle and Modena) north to Beryl in Iron County. The original highway was approximately long and is now known as the Beryl Highway. It was deleted from the state highway system in 1969, and SR-98 was immediately reused for an arterial highway in Weber County. in 2000, this highway was consolidated with SR-97 and deleted.

State Route 99 State Route 99 was designated in the 1930s as a spur from US-6 to Sugarville, a distance of approximately 11 miles. It began at 700 West and Main Street in Delta, heading west to 1000 West and turning north. It then curved west into 1500 North before turning north on 3000 West. The route passed through Sutherland before turning west on 7500 North, coming to its northern terminus at 4250 West in Sugarville. The route was decommissioned in 1969, and the number was immediately reused as the I-15 business loop through Fillmore.

State Route 110