Utah State Route 21
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| State Route 21 |
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| Defined by Utah Code ยง72-4-108 | |||||||||
| Length: | 107.575 mi[1] (173.125 km) | ||||||||
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| Formed: | 1910 as a state highway;[2] 1927 as SR-21[3] | ||||||||
| West end: |  SR 487 near Garrison |
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| Major junctions: |
 SR-159 near Garrison SR-257 near Milford SR-130 near Minersville SR-310 near Minersville |
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| East end: |   SR-160 / I-15 Bus. in Beaver |
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State Route 21 (SR-21) is a state highway in western Utah, running for 107.575 miles in Millard and Beaver Counties from the Nevada state line near Garrison to Beaver.
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[edit] Route description
[edit] Nevada State Line to Milford
SR-21 begins at the Nevada state line as a continuation of NV Route 487 and heads southeast through Garrison. It continues southeast past Pruess Lake and continues through Mormon Gap and Halfway Summit. It turns east around Lime Point into Corral Canyon and over Wah Wah Summit. It then heads southeast between Grampian Hill and Squaw Peak into Squaw Gulch, where it turns northeast over Frisco Summit and east through the ghost town of Frisco. It then turns southeast and continues to Milford.[1]
[edit] Milford to Beaver
SR-21 leaves Milford heading southeast across an agricultural area to Minersville. In Minersville, it turns east past Yellow Mountain, then turns northeast past Minersville Lake State Park. It continues through Adamsville, then turns east around Little Bald Hill through Greenville into Beaver. In Beaver, it crosses I-15 without an interchange, the continues to end at an intersection with Business Loop I-15 (SR-160).
[edit] History
SR-21 was commissioned in 1910, running from Milford to Beaver. In 1916, it was extended west to Newhouse. In 1927, it was extended to the Nevada state line. In 1953, it was realigned in the Minersville area.[2]
[edit] Major Intersections
| County | Location | Mile | Roads intersected | Notes |
|---|---|---|---|---|
| Millard | Garrison | 0.000[1] |   SR 487 north to US 6 / US 50 |
Western terminus |
| 1.025 | SR-159 north |
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| Beaver | Milford | 76.920 | SR-257 north (Main Street) |
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| Minersville | 90.498 | SR-130 south (Center Street) |
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| 96.432 | SR-310 north |
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| Beaver | 107.575 | SR-160 (Main Street) / I-15 Bus. |
Eastern terminus |
