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Wyoming State Route Log: 400 through 499

STATE ROUTE DESCRIPTION COUNTY MILEAGE NAMING
Routing: Wyoming 410 travels from Wyoming 414 in Mountain View southeast to Meeks Cabin Access Road four miles west of Robertson. The route becomes Uinta County Route 204 (Piedmont Road) at its end. Mileposts: Mileposts increase from northeast to southwest. Wyoming 410 begins at Milepost 3.11 at Junction Wyoming 414 (P-16, MP 99.87). The route passes by the southern corporate limits of Mountain View at Milepost 3.86. Milepost 4.19 is Junction Wyoming 411 (MP 0.00), and Robertson is at Milepost 12.35. The route ends at Milepost 16.48. Uinta 13.37 -
Routing: Wyoming 411 is a spur from Wyoming 410 west to Millburne, where it connects to Uinta County Route 260 (Milburne Road). Mileposts: Mileposts increase from east to west. Milepost 0.00 is Junction Wyoming 410 (MP 4.19), and the route crosses over Blacks Fork River at Milepost 3.26. Wyoming 411 ends at Milepost 4.04 in Milburne. Uinta 4.04 Milburne Road
Routing: Wyoming 412 travels from U.S. 189 just north of the Uinta-Lincoln County Line southeast to Interstate 80 Exit 39 via Carter. The pavement continues south of this interchange as Wyoming 414. Mileposts: Mileposts increase from south to north. The route begins at Milepost 2.81 at Junction Interstate 80 (MP 39.00) and Wyoming 414 (MP 93.88) -- there is a rest area here too. The route enters Carter at Milepost 10.33, and the route crosses the Lincoln-Uinta County Line at Milepost 23.64. The route ends at Milepost 24.83 at Junction U.S. 189 (P-11, MP 21.41). Uinta; Lincoln 22.02 Carter-Lyman Road
Routing: Wyoming 413 travels from Interstate 80 Exit 41 south to Business Loop I-80 in Lyman. Mileposts: Mileposts increase from south to north. Milepost 0.00 is Junction Business Loop I-80 (S-2106, MP 42.84); this is also the northern corporate limits of Lyman. Wyoming 413 crosses over the Black's Fork River at Milepost 2.31. The route ends at Milepost 2.72 where it meets Interstate 80 (MP 41.99). Wyoming 410-414 are clustered in Uinta County. Uinta 2.72 -
Routing: Wyoming 414 travels from Interstate 80 Exit 39 southeast to McKinnon via Urie, Mountain View, and Lonetree. Upon reaching the Utah-Wyoming Border, it changes into Utah 43. Utah 43 is an east-west route that serves Manila, Utah, then turns north back into Wyoming as Wyoming 530. Utah 44 splits off Utah 43 in Manila and heads south to join U.S. 191 on its way to Vernal. Signs along eastbound Interstate 80 tout Wyoming 414 as a route to the Flaming Gorge National Recreation Area. Mileposts: Mileposts increase from northwest to southeast. The route begins at Milepost 93.88 at Junction Interstate 80 (MP 39.90) and Wyoming 412 North (MP 2.81). At Milepost 94.32, Wyoming 414 crosses the Black's Fork River. At Milepost 96.69, Wyoming intersects Business Loop I-80 (S-2106, MP 39.78) and enters Mountain View at Milepost 98.98. Wyoming 414 intersects Wyoming 410 at Milepost 99.87 and crosses the Smith's Fork River at Milepost 99.89. There is a realignment at the eastern corporate limits of Mountain View at Milepost 100.67BK=101.29AH. At Milepost 120.61, the route crosses Henry's Fork River, and at Milepost 121.81 it enters Lonetree. The route crosses the Sweetwater-Uinta County Line at Milepost 127.70. Wyoming 414 ends when it crosses the Utah State Line at Milepost 140.36. Uinta; Sweetwater 45.86 -

STATE ROUTE DESCRIPTION COUNTY MILEAGE NAMING
History: Wyoming 414 was a short-lived designation for U.S. 212 around Colony in the northeastern corner of the state. This designation was used between 1936 and 1939, when U.S. 212 was extended into Wyoming and Montana from its prior end in Belle Fourche, South Dakota. Crook N/A U.S. 212
History: Between 1926 and 1936, Wyoming 416 ran from Greybull to Burgess Junction via Shell Canyon. When U.S. 14 was commissioned in 1936, Wyoming 416 was decommissioned. Bighorn, Sheridan N/A U.S. 14
History: Wyoming 420 had several early definitions, but it is not used anymore. Between 1926 and 1936, U.S. 420 ran from Cody to Deaver, via today's U.S. 14A and Wyo.114. Continuing along the U.S. 420 alignment to the southeast, Wyoming 420 continued from Cody to Thermopolis via what is now Wyoming 120 (see above). In 1926, the road was only partially completed; the central portion of the road was probably not improved. Between 1936 and 1938, the newly extended U.S. 14 replaced U.S. 420. The Wyoming 420 definition between U.S. 20 at Thermopolis northwest to U.S. 20 at Cody remained. Then in 1939, when U.S. 14 was rerouted over Wyoming 520, the old U.S. 420 alignment became Wyoming 420. So in 1939, Wyoming 420 began at U.S. 20 in Thermopolis, met U.S. 14-20 in Cody, then turned northeast to serve Powell and Deaver. In that year only, there was a Wyoming 310 that connected Powell and Lovell. Wyoming 310 is not the same as U.S. 310, even though U.S. 310 traveled through the same general area. Both of these roads (Wyoming 420 north of Cody and Wyoming 310 east of Powell) were commissioned to replace U.S. 14, which was moved to its Greybull alignment. But in 1940, the routing changed again. This time, Wyoming 420 and 310 were recommissioned as Wyoming 14. Wyoming 420 between Powell and Deaver was recommissioned as Wyoming 114. However, Wyoming 420 between Thermopolis and Cody remained. In 1945, Wyoming 420 was recommissioned as Wyoming 120. This was done to provide a continuous route from Thermopolis to Cody and the Montana Border. Park, Bighorn, Sheridan N/A U.S. 14
Routing: Wyoming 430 travels from Wyoming 376 in Rock Springs south to the Colorado-Wyoming State Line near Hiawatha Camp, Colorado. The route continues south as an unimproved highway all the way to Colorado 318 near Dinosaur National Monument. History: Wyoming 430 may have extended north into downtown Rock Springs, ending at Business Loop I-80 and Business U.S. 30 (Pilot Butte Avenue), but the route it may have taken is not clear. Further map research is necessary. Sweetwater 53.53 -
Routing: Wyoming 431 travels from U.S. 20 and Wyoming 789 at Neiber west to Wyoming 120 along the Goose Creek. Mileposts: Mileposts increase from east to west. The zero milepost is at Junction U.S. 20 and Wyoming 789 (P-34, MP 156.64) and Wyoming 432 North (MP 10.81). At Milepost 23.99, the route crosses the Hot Springs-Washakie County Line. At Milepost 25.45, Wyoming 431 crosses Gooseberry Creek, and it comes to its end at Milepost 30.20, where it meets Wyoming 120 (P-33, MP 32.29). Washakie; Hot Springs 30.20 -
Routing: Wyoming 432 travels from U.S. 20 and Wyoming 789 at Worland parallel to U.S. 20 and Wyoming 789. Wyoming 432 follows the east bank of the Bighorn River. Mileposts: Mileposts increase from north to south. Milepost 0.00 is Junction U.S. 20 and Wyoming 789 (P-34, MP 165.38). A milepost equation for a realignment is at 0.18BK=0.00AH. The route passes through the southern corporate limits of Worland at Milepost 0.53. At Milepost 3.81, Wyoming 432 crosses over No Water Creek and at Milepost 10.27, it crosses over the Big Horn River. An at-grade railroad crossing is at Milepost 10.73, and the route ends at Milepost 10.81 at its junction with U.S. 20 and Wyoming 789 (P-34, MP 156.64) and Wyoming 431 West (MP 0.00). Washakie 10.99 -
Routing: Wyoming 433 travels from U.S. 20 and Wyoming 789 west of Worland north to U.S. 16-20 and Wyoming 789 west of Manderson. The entire route parallels U.S. 16-20 and Wyoming 789. Mileposts: Mileposts increase from south to north. Milepost 0.00 is at Junction U.S. 20 and Wyoming 789 (P-34, MP 164.72), and the route passes through Worland between Mileposts 0.54 and 0.62. At Milepost 10.92, Wyoming 433 crosses the Bighorn-Washakie County Line. At Milepost 18.81, Wyoming 433 ends at Junction U.S. 16-20 and Wyoming 789 (P-34, MP 185.52). Washakie; Bighorn 18.81 -
Routing: Wyoming 434 travels from U.S. 16 at Ten Sleep south to Big Trails. Mileposts: Mileposts increase from north to south. Milepost 0.00 is Junction U.S. 16 (P-36, MP 26.42), and Wyoming 434 leaves Ten Sleep at Milepost 0.19. There is one milepost realignment at 7.27BK=7.53AH, and the route ends at Milepost 20.63 at Big Trails. Washakie 20.37 Nowood Road
Routing: Wyoming 435 is a spur from U.S. 16 at eight miles east of Ten Sleep east to Fish Hatchery near Ten Sleep Canyon. Mileposts: Mileposts increase from west to east. Milepost 0.00 is Junction U.S. 16 (P-36, MP 33.90). The highway crosses over Ten Sleep Creek at Milepost 0.95. Wyoming 435 ends at Milepost 1.17 at the Fish Hatchery. Washakie 1.17 Fish Hatchery Road
Routing: Wyoming 436 is a spur from U.S. 16 five miles east of Ten Sleep east to near Canyon Creek. Mileposts: Mileposts increase from northwest to southeast. Milepost 0.00 is at Junction U.S. 16 (P-36, MP 30.04). Wyoming 436 ends at Milepost 5.93. Wyoming 431 through 436 are clustered in Washakie County. Washakie 5.93 Rome Hill Road
Routing: Wyoming 450 travels from U.S. 16 at Newcastle via Clareton west to Wyoming 59 near Wright (Reno Junction). Mileposts: Mileposts increase from east to west. Milepost 0.00 is Junction U.S. 16 (P-44, MP 245.67). Milepost 29.81 is Junction Wyoming 116 North (S-2302, MP 32.46), and Wyoming 450 crosses the Campbell-Weston County Line at Milepost 45.60. At Milepost 55.71, Wyoming 450 meets the Coal Road Overpass at Milepost 45.60. There are two Burlington Northern Railroad Separations, at Mileposts 56.92 and 60.57. Wyoming 450 ends at Milepost 66.22 at its junction with Wyoming 59 (P-43, MP 72.39). Weston 66.22 Little Thunder Road
Routing: Wyoming 451 travels from U.S. 16 at Osage west to Weston County Route 36B just west of Beaver Creek in the Thunder Basin National Grassland, where it changes into Weston County Route 22 (Oil City Road). Mileposts: Mileposts increase from east to west. Milepost 0.00 is Junction U.S. 16 (P-44, MP 233.29), with a milepost equation at 0.29BK=0.76AH. The route ends at Milepost 5.03. Weston 4.56 Oil City Road
History: Wyoming 452 was the original routing of U.S. 16 through Newcastle. Now this route is known as Business U.S. 16, and mainline U.S. 16 is designated as By-Pass U.S. 16. Weston Approx. 3 miles Business U.S. 16
Routing: Wyoming 487 travels from U.S. 30-287 at Medicine Bow north to Wyoming 220 near Alcova Reservoir via Shirley Basin. This major north-south state highway is part of the primary route from Laramie to Casper. Carbon, Natrona 71.56 Shirley Basin Road

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Page Updated June 17, 2012.