Wyoming Highway 789
|Canada to Mexico Highway|
|Maintained by WYDOT|
|Length:||404 mi (650 km)|
|South end:||SH 13 at Colorado state line near Baggs|
WYO 120 in Thermopolis
US 16 in Worland
US 14 / US 310 in Greybull
WYO 114 near Deaver
|North end:||US 310 at the Montana Border near Frannie|
|Counties:||Carbon, Sweetwater, Natrona, Fremont, Hot Springs, Washakie, Big County|
Wyoming Highway 789 (WYO 789) is a 404-mile-long (650 km) state highway in the U.S. state of Wyoming. WYO 789 travels south-to-north from the Colorado state line to the Montana state line. For most of its length, it is concurrent with other routes.
WYO 789 begins at the Colorado state line just south of Baggs. It travels north for about 4 miles (6.4 km) to Baggs. After Baggs, it continues north for about 45 miles (72 km) until it reaches the county line.
I-80/US 30/WYO 789 re-enter Carbon County. Just west of Rawlins, WYO 789 leaves at exit 211, joining I-80 Bus./US 30 Bus. through Rawlins. North of town, WYO 789 intersects US 287 and travels concurrent with it north for 50 miles (80 km) to the county line, after which it passes through Natrona County for about 2 miles (3.2 km).
US 287/WYO 789 continue in a northwest direction, passing through the towns of Jeffrey City and Sweetwater Station. About 40 miles (64 km) from Sweetwater Station, US 287/WYO 789 enter Lander. WYO 789 splits from US 287 here and continues northeast for 24 miles (39 km), alone, to Riverton. WYO 789 joins US 26 until they reach Shoshoni. Here, US 26/WYO 789 intersect US 20 where WYO 789 continues north with US 20 west.
US 20/WYO 789 continue through the Wind River Canyon into Thermopolis. From there, the highway veers off in a northeasterly direction into Washakie County. From the Washakie county line, the highway travels approximately 21 miles (34 km) before crossing the Big Horn River into Worland where it joins US 16/US 20.
Upon crossing into Big Horn County, US 16/US 20/WYO 789 veer back to the northwest and cross back over the Big Horn River after reaching Manderson. It continues on 20 miles (32 km) to the north through Basin and Greybull. Upon reaching Greybull, US 16/US 20/WYO 789 head west and join US 14 for about 5 miles (8.0 km).
At that point, WYO 789 separates from the concurrency of US 14/US 16/US 20 and returns to its northern path along with US 310 for about 28 miles (45 km) to the town of Lovell. For about 3 miles (4.8 km), US 310/WYO 789 travels west along US 14 Alt. US 310/WYO 789 then turn north for about 3 miles (4.8 km) to Cowley and then head west about 7 miles (11 km) to Deaver.
From Deaver, US 310/WYO 789 travel about 6 miles (9.7 km) north along the Park County line to Frannie. The highway leaves Wyoming on the eastern edge of Park County and enters Montana. Here, the "789" designation is dropped, while US 310 continues along the roadway.
|This section requires expansion. (June 2014)|
|This section needs additional citations for verification. (June 2014)|
Highway 789 was part of a proposed border-to-border U.S. Route 789 that would have traveled from Nogales, Arizona to Sweet Grass, Montana. After the US 789 proposal was rejected by AASHTO, US 789 became part of a series of state highways numbered "789" traveling along the proposed route. Wyoming, however, was the only state that actually applied the number to an existing highway (the other states simply added a concurrent SR 789 over existing highways). Because of this, all the states except Wyoming deleted the designation and removed the signs.
|Carbon||0.00||0.00||SH 13||Continuation into Colorado|
|Baggs||2.52||1.57||WYO 70||Western terminus of WYO 70|
|Sweetwater||near Creston Junction||53.19||33.05||I‑80 / US 30||Western end of I-80/US 30 concurrency; I-80/US 30, exit 187|
I‑80 / US 30 / I‑80 Bus. / US 30 Bus.
|Eastern end of I-80/US 30 concurrency; western end of I-80 Bus./US 30 Bus. concurrency; I-80/US 30, exit 211|
US 287 south / I‑80 Bus. / US 30 Bus.
|Eastern end of I-80 Bus./US 30 Bus. concurrency; southern end of US 287 concurrency|
US 287 Byp.
|Northern terminus of US 287 Bypass|
|Lamont||112.47||69.89||WYO 73||Eastern terminus of WYO 73|
|Muddy Gap Junction||123.52||76.75||WYO 220||Western terminus of WYO 220|
||No major junctions|
|Fremont||Sweetwater Station||165.63||102.92||WYO 135||Southern terminus of WYO 135|
|south of Lander||195.82||121.68||WYO 28||Eastern terminus of WYO 28|
|Lander||204.00||126.76||US 287 north||Northern end of US 287 concurrency|
|near Hudson||215.59||133.96||WYO 138||Western terminus of WYO 138|
|south of Riverton||227.02||141.06||WYO 137 to WYO 138||Eastern terminus of WYO 137|
|227.38||141.29||WYO 135 to WYO 136||Northern terminus of WYO 135|
|Riverton||228.73||142.13||US 26 west||Western end of US 26 concurrency|
|242.61||150.75||WYO 134||Eastern terminus of WYO 134|
|Shoshoni||250.87||155.88||US 20 / US 26 east||Eastern end of US 26 concurrency; eastern terminus of US 20 concurency|
|Hot Springs||280.62||174.37||WYO 173||Western terminus of WYO 137|
|Thermopolis||283.27||176.02||WYO 120||Southern terminus of WYO 120|
|Lucerne||290.55||180.54||WYO 172||Western terminus of WYO 172|
|Washakie||307.28||190.93||WYO 431 west / WYO 432 east||Eastern terminus of WYO 431; southern terminus of WYO 432|
|Worland||315.35||195.95||WYO 433||Southern terminus of WYO 433|
|316.01||196.36||To WYO 432||To WYO 432|
|316.33||196.56||US 16 east||Southern end of US 16 and US 20 concurrencies|
|Big Horn||Manderson||334.98||208.15||WYO 31||Western terminus of WYO 31|
|west of Manderson||336.15||208.87||WYO 433||Northern terminus of WYO 433|
|Basin||346.60||215.37||WYO 30||Eastern terminus of WYO 30|
|north of Basin||349.45||217.14||WYO 36||Northern terminus of WYO 36|
|Greybull||354.23||220.11||US 14 east||Eastern end of US 14, US 16, US 20, and US 26 concurrencies|
|359.21||223.20||US 14 west / US 16 west / US 20 west / US 310 north||Western end of US 14, US 16, US 20, and US 26 concurrencies; southern end of US 310 concurrency|
|Lovell||386.24||240.00||US 14A east||Eastern end of US 14A and US 310 concurrencies|
|387.98||241.08||WYO 32||Northern terminus of WYO 32|
|389.44||241.99||US 14A west||Western terminus of US 14A and US 310 concurrencies|
|Deaver||399.35||248.14||WYO 114||Eastern terminus of WYO 114|
|near Frannie||407.14||252.99||US 310||Continuation into Montana|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi