Utah State Route 266

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  (Redirected from Utah State Route 174 (pre-1965))
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State Route 266 marker

State Route 266
Route information
Defined by Utah Code §72-4-132
Maintained by UDOT
Length: 8.120 mi[1] (13.068 km)
Existed: 1959 – present
Major junctions
West end: I-215 in Taylorsville
  SR-68 in Taylorsville
I-15 in Murray
US-89 in Murray
SR-71 in Murray
I-215 in Holladay
East end: Wasatch Boulevard in Holladay
Highway system
  • State highways in Utah
SR-265 SR-268

State Route 266 is a west–east thoroughfare completely within Salt Lake County in northern Utah that connects both sides of the I-215 beltway. It is known as 4500 South and 4700 South along the route.

Route description[edit]

After its western terminus, SR-266 heads east to its western terminus, the only variation of the route being 4700 South veering two blocks to the north after SR-68 to become 4500 South.


The State Road Commission designated SR-266 in 1959 as a mostly-proposed roadway, connecting SR-68 and SR-71 with a planned interchange on I-15. The corresponding section of SR-174, just to the south, was removed from the state highway system, as it would not give access to I-15. The state legislature extended the route west and east to both sides of the I-215 loop in 1969.[2]

Major intersections[edit]

County Location mi[1] km Destinations Notes
Salt Lake Taylorsville 0.000 0.000 I-215 – Provo, Ogden Western terminus
0.777 1.250 SR-68 (Redwood Road)
Murray 2.844 4.577 I-15 – Provo, Salt Lake City
3.536 5.691 US-89 (State Street)
4.422 7.117 SR-71 (700 East)
Holladay 8.048 12.952 I-215 – Park City
8.120 13.068 Wasatch Boulevard Eastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi