{{short description|State highway in Utah, United States}} {{For|the former highway|Utah State Route 174 (1935–1965)}} {{Use American English|date=May 2025}} {{Use mdy dates|date=January 2025}} {{Infobox road |state=UT |type=SR |route=174 |alternate_name= |section=123 |map={{maplink-road|from=Utah State Route 174.map}} | map_custom = yes | map_notes = SR 174 highlighted in red |length_mi=8.122 |length_round=3 |length_ref=<ref name="reference">{{cite web | title=State Route 174 Highway reference | publisher=Utah Department of Transportation | url=http://www.udot.utah.gov/main/uconowner.gf?n=7246520900981787|access-date=15 November 2011|date=1 May 2008|format=PDF}}</ref> |established=1985<ref name="resolutions">{{cite web|title=State Route 174 Resolutions|publisher=Utah Department of Transportation|url=http://www.udot.utah.gov/main/uconowner.gf?n=200609190947421|access-date=15 November 2011|date= November 2008|format=PDF}}</ref> |counties=Millard |direction_a=West |terminus_a=Main gate of Intermountain Power Plant |direction_b=East |terminus_b={{jct|state=UT|US|6}} south of Lynndyl |previous_type=SR |previous_route=173 |next_type=SR |next_route=175 }}

'''State Route 174''' ('''SR-174''') is a state highway in the U.S. state of Utah. Spanning {{convert|8.1|mi|km}} in rural Millard County, it connects the Intermountain Power Plant with U.S. Route 6 south of Lynndyl.

==Route description== Starting at the main gate of the Intermountain Power Plant in rural Millard County, State Route 174 travels straight in a west-southwest direction for about {{convert|8|mi|km}} along Brush Wellman Road through the Sevier Desert before ending at its intersection with U.S. Route 6.<ref name="reference"/><ref name="Google Maps">{{Google Maps|url=https://maps.google.com/?ll=39.498676,-112.554417&spn=0.037288,0.080509&t=h&z=14&vpsrc=6}}</ref>

==History== The Utah State Legislature established State Route 174 in 1985, along its current alignment.<ref name="resolutions"/> This coincided with the construction of the Intermountain Power Plant, which commenced in 1981, and began commercial operation in 1986.<ref name="IPP">{{cite web|url=http://www.intermountainpower.com/About_Us.html|title=About Us|publisher=Intermountain Power Project|access-date=15 November 2011}}</ref> Before 1969, this was part of the much longer Utah State Route 215.

==Major intersections== The entire route is in rural Millard County, Utah. {{jcttop|length_ref=<ref name="reference"/>|state=UT|nocty=yes|location=none|hatnote=off}} {{UTint|mile=0.000|road=Main gate of Intermountain Power Plant|notes=Western terminus}} {{UTint|mile=8.122|road={{jct|state=UT|US|6|city1=Delta|city2=Spanish Fork}}|notes=Eastern terminus}} {{jctbtm}}

==References== {{Attached KML|display=title,inline}} {{reflist}}

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