State Highway 52 (SH-52) is a 54.126-mile-long (87.107 km) state highway in the U.S. state of Idaho that travels along the Payette River from the Oregon State Line and Snake River to Horseshoe Bend.

Quick Facts State Highway 52, Route information ...

State Highway 52
SH-52 highlighted in red
Route information
Maintained by ITD
Length	54.126 mi[1] (87.107 km)
Existed	1938–present
Major junctions
West end	OR 52 at the Snake River/Oregon state line near Payette
Major intersections	US 95 in Payette
East end	SH-55 in Horseshoe Bend
Location
Country	United States
State	Idaho
Counties	Payette, Gem, Boise
Highway system
Idaho State Highway System Interstate US State
← SH-51 → SH-53

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State Highway 52 begins at the Oregon/Idaho state line at the terminus of Oregon Route 52 where the highway crosses the Snake River near Payette. The highway heads eastward through the city of Payette, then following the Payette River. The highway meets SH-72 at its junction east of New Plymouth. Then heads eastward to the city of Emmett where it turns north at its junction with SH-16 then continuing east up Black Canyon to its terminus at Horseshoe Bend.^[2]

This route has been in existence since 1929, originally as part of State Highway 16, which originally terminated in Horseshoe Bend. State Highway 52 was created in 1938, when the northern section of SH-16 from Emmett to Horseshoe Bend was rerouted westward to New Plymouth. SH-16 was eventually truncated at Emmett in 1955, and SH-52 was then extended westward along the former SH-16 heading toward New Plymouth, and ending up in Payette and the state line.^{[citation needed]}

• List of highways numbered 52