Missouri Route 171

Route 171
Route information
	Maintained by MoDOT
Length	25.907 mi[1] (41.693 km)
Major junctions
South end	I-49 / US 71 / Route 96 / Route 571 in Carthage
North end	K-171 near Opolis, KS
Highway system

Route 171 is a short highway in western Missouri. Its northern terminus is at the Kansas state line where it continues as K-171 near Opolis, Kansas. Its southern terminus is at the junction of Interstate 49/U.S. Route 71, Route 96 and Route 571 in Carthage. The last ten southbound miles are concurrent with Business I-49.

Route description

Some (about half) of those last 10 miles (16 km) to Carthage, from its junction with I-49 Business at Madison Ave. in Webb City, are routed in a northeasterly direction. This results in going northeast on southbound Route 171 and vice versa along this stretch. However, I-49 Business is going more or less in its designated direction, north, in a wrong-way concurrency at the same time.

Also, because of this curve back to the northeast, Route 171 and Route 96 intersect each other on opposite sides of the Joplin/Webb City area. Going "southbound," Route 96 and Route 171 meet each other about two miles (3 km) north of Carl Junction and then again about two miles (3 km) west of Carthage. Route 96 maintains a straight east–west routing between these two points except at the very east end before the intersection with Route 171 and I-49 Business.

At Carthage, Route 171 meets its "parent" route, US 71, along with I-49. Route 171's "southern" terminus and I-49 Business' northern terminus are here while the northern terminus of Route 571 approaches from the east. Route 96 continues through this interchange. This results in three x71's meeting in the same location.

History

Route 171 was once Route 57. That was changed when I-57 was established on the eastern side of the state. Kansas did not change K-57's number to match until 2004, when it became K-171 after it was decided to shorten K-57 because it had numerous concurrencies along its routing.

Major intersections

The entire route is in Jasper County.

Location	mi[1]	km	Exit	Destinations	Notes
Carthage	0.000	0.000	48	I-49 / US 71 / Route 96 east / Route 571 south – Carthage, Kansas City, Joplin	I-49 exit 53; southern end of I-49 Bus. / Route 96 overlap; southern end of freeway
	1.670	2.688	47	Route 96 west / Oak Street – Oronogo	Northern end of Route 96 overlap
	3.534	5.687	46	Brooklyn Heights (Historic US 66)
Carterville	6.195	9.970	44	Route HH – Carterville
Carterville	6.673	10.739	43	Route 249 south to I-44 / I-49 – Joplin	Interchange; northern end of freeway
Webb City	8.810	14.178		I-49 BL south (Madison Avenue) – Joplin, Missouri Southern State University	Northern end of I-49 Bus. overlap
Webb City	9.465	15.232		Historic US 66 east (Powell Drive)	Southern end of Historic US 66 overlap
Airport Drive	10.808	17.394		Route 43 / Historic US 66 west (North Main Street Road) – Joplin, Joplin Regional Airport Main Terminal	Roundabout; northern end of Historic US 66 overlap
	16.027	25.793		Route 96 east / Route YY west – Kansas state line, Carthage
	25.907	41.693		K-171 west – Pittsburg	Continuation into Kansas
1.000 mi = 1.609 km; 1.000 km = 0.621 mi Concurrency terminus

References

Missouri Department of Transportation (December 13, 2020). MoDOT HPMAPS (Map). Missouri Department of Transportation. Retrieved December 13, 2020.

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[MoDOT-1] Missouri Department of Transportation (December 13, 2020). MoDOT HPMAPS (Map). Missouri Department of Transportation. Retrieved December 13, 2020.