Nevada State Route 172

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State Route 172
Hoover Dam Access Road
SR 172 highlighted in red
Route information
Maintained by NDOT
Length	1.351 mi[1] (2.174 km)
Existed	2010–present
Major junctions
West end	I-11 / US 93 / US 93 Bus. northeast of Boulder City
East end	Hoover Dam Access Road west of Hoover Dam
Location
Country	United States
State	Nevada
Highway system
Nevada State Highway System Interstate US State Pre‑1976 Scenic
← SR 171 → SR 173

State Route 172 (SR 172) is a state highway in Clark County, Nevada. The route provides access to Hoover Dam from Interstate 11 (I-11)/U.S. Route 93 (US 93)/U.S. Route 93 Business.