Utah State Route 73
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| Route information | ||||
| Defined by Utah Code §72-4-113 | ||||
| Maintained by UDOT | ||||
| Length: | 41.177 mi[1] (66.268 km) | |||
| Existed: | 1933 – present | |||
| Major junctions | ||||
| West end: |  SR-36 near Rush Valley |
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| East end: |  US-89 in Lehi |
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| Highway system | ||||
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→State Route 73 (SR-73) is a state highway in the U.S. state of Utah, connecting the Rush and Utah Valleys.
Route description
SR-73 begins at an intersection with SR-36 in the Rush Valley, northeast of the town of the same name. It heads southeasterly, climbing slightly to the edge of the Oquirrh Mountains, and then curving between the south end of the range and the Deseret Chemical Depot. When the highway reaches Fivemile Pass, a wind gap between the Oquirrh Mountains and Thorpe Hills, it curves northeast, joining the historic Central Overland Trail (Pony Express route) through the pass and descending into the Cedar Valley. At Fairfield, SR-73 curves north, while the old trail continues its northeasterly path as Lehi-Fairfield Road. The route again curves northeast at Cedar Fort, crossing the valley and passing between the Lake Mountains and Traverse Mountains. The final segment is within the Utah Valley, as SR-73 heads east across the Jordan River and into Lehi, where it serves as that city's Main Street before ending at US-89.[2]
History
The state legislature defined State Route 73 in 1933, running from SR-68 (created in 1931[3]) west of Lehi southwest via Cedar Fort, Fairfield and Topliff to SR-36. Up until Fivemile Pass, beyond Fairfield, this followed the present route of SR-73, but at Fivemile Pass the route curved southwesterly, generally following the former Fairfield Branch of the Union Pacific Railroad.[4] Two years later, the portion west of Fairfield was dropped, in favor of a routing south from Fairfield to SR-26 (now US-6) near Eureka.[5] State Route 180 was also created in 1935, beginning at SR-36 south of Stockton and heading east through Ophir Canyon to Ophir and southeast through the Oquirrh Mountains to Mercur.[6] State Route 202 was defined in 1939 as an eastern approach to Mercur, splitting off SR-73 north of Fairfield and climbing Manning Canyon,[7] and in 1941 the portion of SR-180 between Ophir and Mercur was removed from the state highway system, with an extension of SR-202 west down Mercur Canyon to SR-180 replacing it.[8]
SR-73 was realigned again in 1945, turning southwest between Cedar Fort and Fairfield, absorbing the beginning of SR-202, and continuing southwest to a point between Fairfield and Fivemile Pass. The remainder of the route followed its present alignment to SR-36, replacing the portions of SR-202 and SR-180 that lay outside the canyons in the Rush Valley. The part of former SR-73 from Fairfield north to the junction south of Cedar Fort became State Route 191, while the part south of Fairfield was given to the county. SR-202 was cut back to only the portion in Mercur Canyon, with the Manning Canyon piece dropped. Finally, a connection from the Deseret Chemical Depot north to SR-73 near its west end, constructed with federal aid in 1942,[9] was numbered State Route 198.[10] In short, SR-73 now connected SR-36 to SR-68, with four spurs from west to east: SR-198 to the chemical depot, SR-180 to Ophir, SR-202 to Mercur, and SR-191 to Fairfield.
Over the next two decades, all four spurs disappeared. The first two to go were SR-191 and SR-202, both eliminated in 1953. This completely removed Mercur from the state highway system, but Fairfield was kept by moving SR-73 to its current alignment through that community.[11][12] SR-180 was eliminated in 1961,[13] and SR-198 was deleted in 1969.[9] Due to a southerly extension of SR-68 in 1960, splitting at the SR-73 intersection, the portion of SR-68 into Lehi was renumbered as an extension of SR-73, which gained its current length at that time.[12]
Major intersections
| County | Location | mi[1] | km | Destinations | Notes |
|---|---|---|---|---|---|
| Tooele | | 0.000 | 0.000 | SR-36 |
Western terminus |
| 3.422 | 5.507 | Stark Road | Former SR-198 | ||
| 4.607 | 7.414 | Ophir Canyon Road | Former SR-180 | ||
| 15.647 | 25.181 | Railroad Bed Road | Former SR-73 | ||
| Utah | Fairfield | 20.497 | 32.987 | 18150 West | Former SR-73 |
| Saratoga Springs | 36.429 | 58.627 |  SR-68 – Salt Lake City, Elberta |
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| Lehi | 39.573 | 63.687 |  SR-197 (500 West) |
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| 40.819 | 65.692 |  I-15 – Salt Lake, Las Vegas |
Interchange | ||
| 41.177 | 66.268 | US-89 (State Street) |
Eastern terminus | ||
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi |
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References
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- ↑ 1.0 1.1 Utah Department of Transportation, Highway Reference Information: SR-73 PDF (93.4 KB), updated 2008-05-01, accessed July 2008
- ↑ Google Maps street maps and USGS topographic maps, accessed July 2008 via ACME Mapper
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- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 9.0 9.1 Utah Department of Transportation, Highway Resolutions: Route 198 PDF (3.00 MB), updated November 2007, accessed May 2008
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 12.0 12.1 Utah Department of Transportation, Highway Resolutions: Route 73 PDF (2.59 MB), updated November 2007, accessed May 2008
- ↑ Utah Department of Transportation, Highway Resolutions: Route 180 PDF (2.42 MB), updated November 2007, accessed May 2008
