Nevada State Route 163

State Route 163
Colorado River Highway (formerly Laughlin Highway)
Nevada State Route 163, highlighted in red
Route information
Maintained by NDOT
Length	19.207 mi [1]  (30.911 km)
Existed	July 1, 1976–present
History	SR 77 by 1942
Major junctions
West end	US 95 in Palm Gardens
East end	SR 95 in Bullhead City
Location
Country	United States
State	Nevada
County	Clark
Highway system
Nevada State Highway System Interstate US State Pre‑1976 Scenic
← SR 161 → SR 164

State Route 163 (SR 163), officially referred to as the Colorado River Highway and formerly Laughlin Highway, is a state highway in southern Clark County, Nevada. The route connects the town of Laughlin to the rest of the state via U.S. Route 95 (US 95).

SR 163 and Arizona State Route 95 provide the next closest public Colorado River crossing to Hoover Dam. Due to the restriction of commercial vehicles over the dam following the September 11 attacks, SR 163 comprised part of the required detour for truck traffic traveling between the Las Vegas and Phoenix metropolitan areas from September 11, 2001 to October 19, 2010, when the Mike O'Callaghan–Pat Tillman Memorial Bridge just downstream from the dam was opened to traffic.

Prior to the renumbering of Nevada state routes on July 1, 1976, SR 163 previously comprised the northern part of State Route 76 and all of State Route 77.

Route description

View from the west end of SR 163 looking eastbound in 2015

SR 163 (in the foreground) descending towards Laughlin and the Colorado River in 2006

State Route 163 begins as a four-lane divided highway at its junction with US 95 in Palm Gardens just north of the California state line. From there, the highway negotiates some fairly steep mountain grades as it loses elevation heading east toward Laughlin. Just outside Laughlin, the divided highway comes together and intersects Casino Drive before crossing the Colorado River and entering Bullhead City, Arizona on Arizona State Route 95.

History

State Route 77 first appeared on Nevada state maps in 1942 as an unimproved road. At that time, SR 77 had an eastern terminus near the Bulls Head Dam (later Davis Dam) site and a western terminus at former State Route 76 (now an unnumbered road), which connected to US 95 north of the current US 95/SR 163 junction. ^[2] By 1947, the west end of SR 76 was realigned and paved; along with a paved SR 77, this new pavement would eventually form the majority of SR 163. ^[3] As of 1973, the southern part of SR 76 was removed from the state highway system and SR 77 was extended to US 95 along the paved alignment of the former SR 76. ^[4]

On July 1, 1976, Nevada's highway department began a project to renumber the state highway system. SR 77 was reassigned to State Route 163 during this process; this change was reflected on official state maps in 1978. ^[5]

Major intersections

The entire route is in Clark County.

Location	mi [1]	km	Destinations	Notes
Palm Gardens	0.00	0.00	US 95  – Needles, Las Vegas	Wye intersection; western terminus
Colorado River	19.21	30.92	Donald J. Laughlin Memorial Bridge; Nevada–Arizona line
			SR 95 south to SR 68 east – Kingman, Bullhead City	Continuation into Arizona
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also

• Nevadaportal
• U.S. Roadsportal

References

Template:Attached KML/Nevada State Route 163

KML is not from Wikidata

1. Nevada Department of Transportation (January 2017). "State Maintained Highways of Nevada: Descriptions and Maps" . Retrieved May 6, 2017.
2. Official Road Map of the State of Nevada (Map). Nevada Department of Highways. 1942. Retrieved February 18, 2018.
3. Official Road Map of the State of Nevada (Map). Nevada Department of Highways. 1947. Retrieved February 18, 2018.
4. Official Highway Map of Nevada (Map). Nevada Department of Highways. 1973. § G5-G6. Retrieved February 18, 2018.
5. Official Highway Map of Nevada (Map). Nevada Department of Highways. 1978–1979. § G5-G6. Retrieved February 18, 2018.