U.S. Route 191 (US-191) is a major 404.168-mile (650.445 km), north–south U.S. Numbered Highway through eastern Utah, United States. The present alignment of US-191, which stretches from Mexico to Canada, was created in 1981 through Utah. Previously the route had entered northern Utah, ending at US-91 in Brigham City, but with the completion of I-15 it was truncated to Yellowstone National Park and re-extended on a completely different alignment. In addition to a large portion of US-163, this extension absorbed several state routes: SR-33, most of SR-44, and SR-260.
Route description
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Three portions of US-191 in Utah have restrictions on trucks and other large vehicles. Between the junctions with State Routes 46 and 279, vehicles wider than 15 feet (4.57 m) are required to have two police escorts. Between Vernal and the Wyoming State line, vehicles longer than 95 feet (29 m) are required to have two certified pilot escorts. Vehicles heavier than 20,000 pounds (9,000 kg) per axle are prohibited on Flaming Gorge Dam.[2]
The independent portions of US 191 south of Interstate 70, as well as the concurrencies with I-70, US-6, and US-40, are included as part of the National Highway System.[3]
History
When US-191 was created in 1926, it did not enter Utah, only running from Idaho Falls northeast to Yellowstone National Park.[4] An extension in the late 1930s brought US-191 south to Brigham City, Utah, following what was then SR-41 and is now mostly SR-13.[5][citation needed] With the construction of I-15 parallel to US-191, the latter route was removed from Utah in the early 1970s,[citation needed] and by 1980 it only existed north of Yellowstone.[6]
US-191 replaced part of US-163, formerly SR-9 and SR-47.
The road from Bluff north via Monticello, Moab, and Valley City to Thompson (a station on the Denver and Rio Grande Railroad) became a state highway in 1910.[7] To connect this road with the rest of the state highway system, a road from Valley City northwest via Floy to Green River was added in 1912, as was a connection from Thompson to via Cisco to Colorado.[8] An extension from Monticello southeast to Colorado was added in 1913,[7] and in the 1920s most of these roadways were assigned numbers: State Route 8 went from Green River via Floy, Valley City, Thompson, and Cisco to Colorado, and State Route 9 began at Valley City and extended south via Moab to Monticello and east to Colorado.[9]
With the creation of the U.S. Highway system in 1926, SR-8 and SR-9 each received a second designation, US-50 and U.S. Route 450 respectively.[4][10] The state legislature redefined all the state routes in 1927, and moved SR-8 to a direct Floy-Thompson cutoff,[11] with both roads from Valley City to Floy and Thompson becoming SR-9.[12] The Monticello-Bluff road was assigned State Route 47 and extended to Mexican Hat at that time[13] and to the Arizona state line in 1931.[14] The State Road Commission designated a new alignment of SR-9 to Crescent Junction on SR-8 in 1934, replacing both branches to Floy and Thompsons,[7] and the legislature updated the description in 1935;[15] at that time, US-450 was extended from Valley City to Crescent Junction on the new SR-8 (US-50) cutoff.[16]
Although no significant changes were made to SR-9 or SR-47 after 1935, the signed U.S. Highway numbers changed several times. First, in the late 1930s, U.S. Route 160 replaced US-450, continuing to enter the state east of Monticello and end at Crescent Junction. Then in about 1970, US-163 was designated along the entire length of SR-47 from Arizona to Monticello, and replaced US-160 north to Crescent Junction; at the same time, US-666 was extended from Cortez, Colorado over US-160 to a new terminus at US-163 in Monticello.[citation needed] The 1977 renumbering saw the elimination of SR-9 and SR-47, by then no longer signed due to the concurrent U.S. Highway designations. The final change (except for the 2003 renumbering of US-666 to US-491) came in 1981 when US-191 replaced US-163 north of a junction near Bluff. South of this intersection, US-191 followed a route that did not formerly exist as a state highway. The Bureau of Indian Affairs (BIA) completed this road across the Navajo Nation, and San Juan County built the short piece north of the San Juan River, in time for the extension of US-191. After the BIA granted an easement to Utah for the road, formerly BIA Route N12 (23) 2&3[citation needed], in 1988, it was added to the state highway system the next year.[6]
US-6 to US-40
US-191 replaced SR-33.
The road connecting Colton on SR-8 (US-50, now US-6) with SR-6 (US-40) in Duchesne became a state highway in 1910. The southwest end was moved from Colton to Castle Gate in 1912,[17] and in 1927 it was numbered State Route 33.[18] Few changes were made to the roadway, and in 1981 it became part of US-191.[17]
US-40 to Wyoming
US-191 replaced part of SR-44 and all of SR-260.
The road from SR-6 (US-40) in Vernal north to SR-43 in Manila, where one could continue to Wyoming, was added to the state highway system in about 1918 as a forest highway project,[19] completed in 1926,[20] and numbered SR-44 in 1927.[21] It was the only state road connecting Daggett County's seat, Manila, with the rest of the state, yet parts remained in an unimproved condition through the 1950s.[22]
Several routes have been designated over the years to connect SR-44 to Flaming Gorge, a canyon on the Green River that lends its name to the Flaming Gorge Dam that US-191 now crosses the river on. The first was State Route 165, which would have begun at SR-44 south of Manila and headed east to the gorge. The state legislature added the proposed road to the state highway system in 1933,[23] but in 1935 it was deleted, and the number was reused to the west on a portion of Birch Creek Road.[24] Later, in 1941, the planned connection was redesignated as a state highway, this time State Route 220,[25] but in 1945 it was moved north, closer to the state line.[26]
It was this alignment that was actually built, beginning at Linwood on SR-43 and proceeding east-southeasterly through a valley that is now flooded by the Flaming Gorge Reservoir's Linwood Bay.[27] SR-220 was deleted in 1957, but in its place was a new State Route 260 that began at Greendale Junction on SR-44 and headed northeast over the dam (then under construction) and to the state line. The legislature did not specify where it would intersect the border,[28] and the State Road Commission initially routed it along former SR-220 to Linwood.[29] However, the law was amended in 1963 to define the north end to be east of the reservoir,[30] and soon the lake began to fill, cutting off the road to Linwood (and inundating that settlement).[31] By 1981 the new road was completed, and most of SR-44 and all of SR-260 were absorbed by US-191.[6]
US 191 from the access road at Arches National Park.
^Utah State Legislature (1927). "Chapter 21: Designation of State Roads". Session Laws of Utah. 8. From Springville southeasterly and from Spanish Fork easterly to mouth of Spanish Fork Canyon, thence southeasterly via Thistle, Soldier Summit, Castle Gate, Price, Soldier Creek Junction, Green River, Floy, Thompson and Cisco to the Utah-Colorado State line near Utaline, Colorado; also from Soldier Creek Junction, Carbon County to Myton, Duchesne county.
^Utah State Legislature (1927). "Chapter 21: Designation of State Roads". Session Laws of Utah. 9. From Floy southeasterly to Valley City and from Thompson southerly via Valley City, Moab and LaSal Junction to Monticello, thence easterly to the Utah-Colorado State line near Lockerby, Utah.
^Utah State Legislature (1927). "Chapter 21: Designation of State Roads". Session Laws of Utah. 47. From Monticello southerly via Blanding and Bluff to south side of Mexican Hat bridge.
^Utah State Legislature (1931). "Chapter 55: Designation of State Roads". Session Laws of Utah. (47) From Monticello southerly via Blanding, Bluff, and Mexican Hat to the Arizona State line.
^Utah State Legislature (1935). "Chapter 37: Designation of State Roads". Session Laws of Utah. Route 9. From Crescent Junction southeasterly via Valley City, Moab, and LaSal Junction to Monticello, thence southeasterly to the Utah-Colorado state line.
^Utah State Legislature (1933). "Chapter 30". Session Laws of Utah. (165) From the junction with route 44 south of Manila easterly to Flaming Gorge.
^Utah State Legislature (1935). "Chapter 37: Designation of State Roads". Session Laws of Utah. Route 165. From a point on the Utah-Wyoming state line, Daggett County, southerly 5 miles.
^Utah State Legislature (1941). "Chapter 34". Session Laws of Utah. Route 220. From Route 44 south of Manila easterly to and across Green River at a point near Flaming Gorge — approximately eight miles.
^Utah State Legislature (1945). "Chapter 61: State Roads and Routes". Session Laws of Utah. Route 220. From Linwood on route 43 easterly and parallel to the Utah-Wyoming state line approximately five miles to and across Green River.
^Utah State Legislature (1957). "Chapter 54: State Roads — Designation". Session Laws of Utah. Route 260. From Route 44 near Greendale northerly via Flaming Gorge dam to the Utah-Wyoming state line at a point either east or west of the Green River.
^Utah State Legislature (1963). "Chapter 39: Highway Code". Session Laws of Utah. Route 260. From Route 44 near Greendale northerly via Flaming Gorge Dam to the Utah-Wyoming state line near Spring Creek Gap.
US 191 towards Ganado, AZ
US 191 towards Rock Springs, WY
