Nevada State Route 172

State Route 172
Hoover Dam Access Road
Route information
Maintained by NDOT
Length:	1.612 mi[1] (2.594 km)
Existed:	2010 – present
Major junctions
West end:	US 93 northeast of Boulder City
East end:	Hoover Dam Access Rd west of Hoover Dam
Highway system
Nevada highways ← SR 171 SR 206 →

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

Route description

State Route 172 begins at an interchange with US 93 approximately 5 miles (8.0 km) northeast of downtown Boulder City. From there, the route travels eastward, following the curvy mountainside headed towards Hoover Dam. The SR 172 designation ends 1.61 miles (2.59 km) west of the Arizona state line at the Hoover Dam security checkpoint. While the state highway ends at this point, the Hoover Dam Access Road continues eastward, passing the Mike O'Callaghan – Pat Tillman Memorial Bridge Plaza and ending at the Hoover Dam visitor center.^[1]

History

SR 172 was originally part of US 93.^[1] US 93 was rerouted onto the Hoover Dam Bypass when construction was completed in October 2010, and the new state highway was designated over the old route.

Major intersections

The entire route is in Clark County.

Location	Mile[1]	Destinations	Notes
	0.00	US 93 – Boulder City, Las Vegas, Phoenix
	1.61	Hoover Dam Access Road – Hoover Dam	continuation beyond terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

	Nevada portal
	U.S. Roads portal

1. ^ ^{a b c d} State Maintained Highways of Nevada: Descriptions and Maps. Nevada Department of Transportation. January 2011. http://www.nevadadot.com/reports_pubs/state_maintained/pdf/2011_SMH_PUB.pdf. Retrieved 23 January 2011.