Nevada's State Routes were developed beginning in 1917 upon the creation of the Nevada Department of Transportation. Routes were not assigned according to any particular numbering system, and sequential numbers were largely scattered throughout the state. Additionally, several suffixed highways were also designated, branching from the original parent route.

During the statewide route renumbering that began in 1976, the majority of Nevada's two-digit state routes were eliminated. Most of the old two-digit routes were reassigned to one or more of the new three-digit highway numbers (State Routes 28 and 88 were the only routes to permanently keep their pre-1978 numbers). Other routes were immediately eliminated from the state highway system, while a select few retained their pre-1978 numbers on official state maps into the 1980s only to be later reassigned or completely removed from the state highway system.

1976 State Route Number Section of 1976 Route Post-1982 State Route Number Notes
From To
SR 3 US 95 at Lida Junction California state line west of Lida SR 266
SR 3A California state line southeast of Dyer, Nevada Unnumbered road near Fish Lake Valley SR 264
Unnumbered road near Fish Lake Valley US 6 west of Coaldale SR 773
SR 3B US 395 south of Washoe Lake US 395 north of Washoe City SR 428
SR 8A US 6 east of Tonopah US 50 southeast of Austin SR 376
US 50 near Austin US 40 near Battle Mountain SR 305
US 95/SR 140 south of Orovada SR 140 west of Denio SR 140 Section had been concurrent with SR 140
SR 140 west of Denio California state line east of Cedarville None Removed from system; still signed as SR 8A but maintained by Washoe County
SR 10 California state line west of Basalt US 6 at Basalt US 6 Previously concurrent with US 6
US 6 at Basalt US 95 south of Mina SR 360
SR 17 US 50 west of Dayton US 395 & SR 27 south of Reno SR 341
SR 20 US 6 at Currant Duckwater SR 379
Duckwater US 50 south of Eureka None Section removed from system
SR 25 US 6 at Warm Springs US 93 at Crystal Springs SR 375
US 93 near Pioche Utah state line southwest of Modena SR 319
SR 27 entire route SR 431
SR 28 entire route SR 28 Route number unchanged
SR 29 California state line US 95 at Lathrop Wells SR 373
SR 35 entire route SR 489
SR 47 Silver Peak US 6/US 95 at Blair Junction SR 265
SR 51 US 50 in Eureka US 40 in Carlin SR 278
US 40 at Elko Idaho state line SR 225
SR 53 US 91 in Jean Goodsprings SR 161
Goodsprings California state line near Sandy Valley None Section removed from system
SR 58 California state line US 95 in Beatty SR 374
SR 60 entire route SR 165
SR 61 entire route SR 117
SR 68 entire route SR 164
SR 69 entire route SR 377
SR 71 Gold Point SR 3 near Lida SR 774
SR 72 California state line US 95 at Scotty's Junction SR 267
SR 80 SR 17 south of Gold Run SR 17 in Virginia City SR 342
SR 81 SR 34 north of Gerlach California state line near Cedarville SR 447
SR 88 California state line US 395 in Minden SR 88 Route number unchanged
SR 90 entire route None Section removed from system
SR 91 entire route SR 844
SR 92 entire route SR 378
SR 140 Oregon state line US 95 north of Paradise Valley SR 140 Route number unchanged; Proposed to be SR 291