Idaho State Highway 78
State Highway 78 | ||||
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Route information | ||||
Maintained by ITD | ||||
Length: | 99.720 mi[1] (160.484 km) | |||
Major junctions | ||||
West end: | SH-55 in Marsing | |||
SH-51 | ||||
East end: | I-84 Business Loop in Hammett | |||
Location | ||||
Counties: | Owyhee, Elmore | |||
Highway system | ||||
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State Highway 78 (SH-78) is a state highway in Idaho from SH-55 in Marsing to I-84 Business Loop in Hammett
Route description
SH-78 starts at the intersection with SH-55 in Marsing and provides access to sites south of the Snake River from there to Bruneau and a few along the north side via SH-167 from Grand View. SH-78 provides access to Bruneau Dunes State Park and itself crosses the Snake into Elmore County before reaching its eastern terminus at Hammett.[1]
History
The basic route of today's SH-78 from Marsing to Bruneau was in place as early as the mid-1930s, mostly as unimproved roads with a few all-weather gravel segments near Bruneau, Grand View and north of Murphy (a segment originally part of SH-45), and some paved segments near Marsing as of the 1937 map.[2]
Major junctions
County | Location | mi[1] | km | Destinations | Notes |
---|---|---|---|---|---|
Owyhee | Marsing | 0.000 | 0.000 | SH-55 – Marsing, Nampa, Boise, Eagle | US-95 is about 2 miles (3.2 km) south on SH-55 |
| 19.775 | 31.825 | SH-45 north – Nampa | ||
Murphy | 34.105 | 54.887 | Silver City Road | National historic mining district and former Owyhee County seat about 25 miles (40 km) south | |
Grand View | 59.782 | 96.210 | SH-167 north – Mountain Home AFB, Mountain Home | Access to Simplot feed lot, USAF Recreation Area at C. J. Strike Dam, Simco Road | |
| 76.004 | 122.317 | SH-51 south – Grasmere, Elko | Southern end of SH-51 overlap | |
Bruneau | 82.680 | 133.061 | SH-51 north – Mountain Home | Northern end of SH-51 overlap | |
84.360 | 135.764 | Bruneau Dunes State Park | protected sand dunes | ||
Snake River | 94.664 | 152.347 | Snake River Bridge Owyhee–Elmore county line | ||
Elmore | Hammett | 98.640– 99.720 | 158.746– 160.484 | I-84 Business Loop – Mountain Home, Boise, Twin Falls | Overlap with I-84 Bus. |
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
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References
- 1 2 3 Staff (March 19, 2014). "State Highway 78 Milepoint Log" (PDF). Idaho Transportation Department. Retrieved February 3, 2015.
- ↑ Rand McNally and Company, Road map: Idaho, Mont., Wyo., published by Texaco, 1937