Utah State Route 280

State Route 280
	100 South
	SR-280 highlighted in red
Route information
	Defined by Utah Code §72-4-133
	Maintained by UDOT
Length	0.399 mi[1] (0.642 km)
Existed	1961–present
Major junctions
West end	I-80 / US-189 in Coalville
East end	Main Street in Coalville
Highway system

State Route 280 (SR-280) is a 0.39-mile-long (0.63 km) state highway completely within Summit County in the northern portion of the U.S. state of Utah. SR-280 connects Interstate 80 (I-80) in Coalville to Main Street in the same town. The entirety of the highway is named 100 South.

Route description

The highway begins at a diamond interchange on I-80 at exit 162 west of the center of Coalville and heads northwest on a two-lane undivided highway. SR-280 enters downtown Coalville and terminates on Main Street.[2]

History

Prior to the construction of I-80, SR-4 (US-189) passed through Coalville on Main Street. To retain access to the town once I-80 replaced the surface road, the State Road Commission designated State Route 280 in 1961 as a short connection between I-80 and Main Street on Icy Springs Road (100 South).[3] Before serving its intended purpose, the road briefly formed part of SR-2 (which had replaced SR-4 in 1962) and US-189, since I-80 was completed west of SR-280 before the portion east to Echo opened. A temporary ramp left the right side of SR-280 where the ramp to I-80 east now begins, and curved left into the westbound lanes of I-80 just before the Interstate crosses under SR-280.[4]

Major intersections

The entire route is in Coalville, Summit County.

mi[1]	km	Destinations	Notes
0.000	0.000	I-80 / US-189 – Salt Lake City, Cheyenne	Western terminus
0.399	0.642	Main Street	Eastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

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References

"State Route 280 Highway reference". Utah Department of Transportation.
"Google Maps". Google.
Utah Department of Transportation, Highway Resolutions: "Route 280". (550 KB), updated December 2007, accessed May 2008
Google Maps street maps and USGS topographic maps, accessed May 2008 via ACME Mapper

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[reference-1] "State Route 280 Highway reference". Utah Department of Transportation.

[gmaps-2] "Google Maps". Google.

[resolutions-280-3] Utah Department of Transportation, Highway Resolutions: "Route 280". (550 KB), updated December 2007, accessed May 2008

[maps-4] Google Maps street maps and USGS topographic maps, accessed May 2008 via ACME Mapper