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Utah State Route 171

From Wikipedia, the free encyclopedia

State Route 171
3500 South/3300 South
SR-171 highlighted in red
Route information
Defined by Utah Code §72-4-123
Maintained by UDOT
Length15.660 mi[1] (25.202 km)
Major junctions
West end SR-111 in Magna
East end I-215 in Millcreek
CountiesSalt Lake County
Highway system
  • State highways in Utah
Utah 168.svg SR-168Utah 172.svg SR-172

State Route 171 (SR-171) is a state highway in the Salt Lake City metropolitan area in northern Utah that runs from SR-111 in Magna in the west side of the city to Interstate 215 in the city of Millcreek in the eastern part valley. In its sixteen-mile span, the route is named 3500 South and 3300 South.

Route description

From SR-111 in Magna, the highway (known as 3500 South) runs due east with between one and four general-purpose lanes in each direction until its junction with Redwood Road (SR-68), where it veers to the northeast before again straightening out to the east. Other than the west end, this portion is entirely within West Valley City. The route passes through the former towns (now neighborhoods) of Hunter and Granger as well as West Valley City's modern downtown area near I-215 (which overlaps with historic Granger). The intersection with Bangerter Highway (SR-154) was the first continuous flow intersection built in Utah. At the intersection with 2700 West just west of I-215, the route crosses Green Line (TRAX) light rail tracks near their terminus at the (West Valley Intermodal Hub. Between about SR-154 and Market Street (near 2700 West and I-215), dedicated bus lanes for UTA's 3500 South MAX bus rapid transit line run in the median.

SR-171 approaching I-215
SR-171 approaching I-215

East of Redwood Road and the curve where it becomes 3300 South, SR-171 continues due east with two to three lanes in each direction, passing through South Salt Lake and Millcreek Township (and very small segments near former SR-181 bordering Salt Lake City), until its terminus. It is the first road south of 2100 South that provides access, for travelers from the west, to I-15 or other points east of the Union Pacific-FrontRunner railroad right-of-way; other roads in the area are blocked by Union Pacific's Roper rail yard. About two blocks east of the bridges carrying the Union Pacific railroad, FrontRunner railroad, and I-15 over the route, there is also a grade crossing with TRAX's Blue and Red lines next to Millcreek station. Just before reaching former SR-181, SR-171 becomes much steeper than at any point to the west (other than when it ducks under the Union Pacific-FrontRunner right-of-way), and from there it continues to climb the East Bench foothills until its terminus at I-215 in Millcreek.

The entire route is included as part of the National Highway System.[2]


3300 South/3500 South was added to the state highway system west of State Street on April 24, 1916, along with 8400 West north to 2100 South (which was already a state highway); on November 13 of that year, East 3300 South to a connection with the old Territorial Road in Parley's Canyon (also already part of the system) became a state highway.[3] In 1919, when the state legislature redefined the state road system to include only a short list given in the law and any federal aid projects, West 3300 South remained as part of the Lincoln Highway,[4] and became part of SR-4 and US-40 in the 1920s,[5] but East 3300 South was given back to the county until 1935. That year, the legislature created State Route 171, occupying that street from State Street (by then designated SR-1 and US-91) east to Wasatch Boulevard (just east of present I-215).[6] SR-210 was created in 1941, beginning at SR-4 (now I-80) at the mouth of Parley's Canyon and running south on Wasatch Boulevard to Little Cottonwood Canyon;[7] that route was truncated in 1945, and the portion on Wasatch Boulevard between SR-171 and SR-4 became an extension of SR-171.[8] In 1962, SR-171 was extended west to SR-111 in Magna, replacing SR-4 (which was moved to present I-80 as SR-2); in 1965, the eastern terminus was reverted to the interchange with I-215 at Wasatch Boulevard (as I-215 had replaced the purpose of Wasatch Boulevard).[9]

Major intersections

The entire route is in Salt Lake County.

Magna0.0000.000 SR-111 (8400 West)Western terminus
West Valley City SR-85 (Mountain View Corridor)Opening summer 2021
3.5065.642 SR-172 (5600 West)
5.8159.358 SR-154 (Bangerter Highway)Continuous-flow intersection
I-215 – Provo, OgdenI-215 exit 18;
8.02212.910 SR-68 (Redwood Road)
South Salt Lake9.976–
I-15 – Ogden, Las Vegas, NVI-15 exit 303; Single-point urban interchange
10.73117.270 US 89 (State Street)
11.62118.702 SR-71 (700 East)
I-215 – Provo, Reno, NV, Cheyenne, WYEastern terminus; I-215 exit 3;
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
  •       Unopened

See also


  1. ^ a b "State Route 171 Highway reference". Utah Department of Transportation. 1 May 2008. Retrieved 2 Apr 2013.
  2. ^ "Utah National Highway System". UDOT Data Portal. Retrieved 2019-01-22.
  3. ^ Fourth Biennial Report, State Road Commission, 1915 and 1916, pp. 214, 218
  4. ^ Utah State Legislature (1919). "Chapter 57: State Road Commission". Session Laws of Utah. (e) The Lincoln Highway from the Utah-Wyoming State line, via Echo Canyon, Echo, Coalville, Hoytsville and Parley's canyon to Salt Lake City; thence westwardly via Magna, Garfield, Tooele, Stockton, St. John, Clover, Johnson's Pass, Granite Mountain and Ibapah to the Utah-Nevada State line.
  5. ^ (Map). Rand McNally. 1926 Retrieved 2 Apr 2013. Missing or empty |title= (help)
  6. ^ Utah State Legislature (1935). "Chapter 37: Designation of State Roads". Session Laws of Utah. Route 171. From a point on route 1 south of Salt Lake City east via Thirty-third South Street to Wasatch Boulevard.
  7. ^ Utah State Legislature (1941). "Chapter 34". Session Laws of Utah. Route 210. From route 4 in Parley's Canyon via Wasatch Boulevard and Little Cottonwood Canyon to Alta.
  8. ^ Utah State Legislature (1945). "Chapter 61: State Roads and Routes". Session Laws of Utah. Route 171. From route 1 south of Salt Lake City east via Thirty-third south Street to Wasach[sic] Boulevard thence northerly to route 4 in Parley's Canyon." "Route 210. From route 152 at seventieth south street southeasterly via twentieth east street and Little Cottonwood Canyon to Alta.
  9. ^ Utah Department of Transportation, Highway Resolutions: "Route 171". (863 KB), updated November 2007, accessed May 2008

External links

KML is from Wikidata

Media related to Utah State Route 171 at Wikimedia Commons

This page was last edited on 20 May 2021, at 15:29
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