Idaho State Highway 51

State Highway 51 marker
State Highway 51
Map
SH-51 highlighted in red
Route information
Maintained by ITD
Length93.598 mi[1] (150.631 km)
Major junctions
South end SR 225 near Owyhee, NV
Major intersections
North end I-84 BL in Mountain Home
Location
CountryUnited States
StateIdaho
CountiesOwyhee, Elmore
Highway system
  • Idaho State Highway System
SH-50 SH-52

State Highway 51 (SH-51) is a state highway in southwestern Idaho from Mountain Home south to the Nevada border, where it continues as State Route 225 to Elko. It is the major north–south road in Owyhee County.[2]

As currently configured in the state's official milepoint log, SH-51 terminates at the Business Loop 84 intersection with American Legion Boulevard, and is not otherwise officially concurrent/overlaid with BL-84 (where the signs at I-84's Exits 90 and 95 say "To SH-51/To SH-67") or the former section of US-20 that follows American Legion Boulevard to Interstate 84/U.S. Route 20 east at Exit 95. As of February 2015, some map products such as Google Maps still show SH-51's former overlay with American Legion Boulevard.[1]

  1. ^ a b ITD (March 19, 2014). "State Highway 51 Milepoint Log" (PDF). Idaho Transportation Department. Archived from the original (PDF) on February 5, 2015. Retrieved February 5, 2015.
  2. ^ Conley, Cort (1982). Idaho for the curious: a guide. Cambridge, Idaho: Backeddy Books. p. 281. ISBN 0-9603566-3-0.