Missouri Route 43

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Route 43

Route 43 highlighted in red
Route information
Maintained by MoDOT
Length98.380 mi[1] (158.327 km)
Major junctions
South end SH-20 / AR 43 at the Arkansas/Oklahoma state line
North end US 54 in Vernon County
CountryUnited States
Highway system
Route 42 I-44

Route 43 is a highway in western Missouri. Its northern terminus is at U.S. Route 54 midway between Nevada and Deerfield. Its southern terminus is at the corner of Missouri (near Southwest City), Arkansas, and Oklahoma where it continues down the Arkansas/Oklahoma state line as both Arkansas Highway 43 and Oklahoma State Highway 20.[2]

Route description

First reassurance marker heading north, Route 43, Southwest City, Missouri. Near the AR/MO/OK tripoint

North of Joplin, Route 43 is a relatively straight highway. It intersects U.S. Route 160 in Barton County west of Lamar. A few miles south of there it intersects Route 126. Just north of Joplin, it intersects Route 96.

In Joplin, the highway is known as Main Street and passes through the old historic downtown area. For a few blocks, it is historic US Route 66 until it reaches Seventh Street (Route 66), where Route 66 goes west. It joins Business Loop I-44 until it reaches Interstate 44, then joins this road for one exit west, then turns south again.

When Route 43 reaches Seneca (where it has a junction with U.S. Route 60), it comes within a half mile of Oklahoma and stays relatively close to it all the way to the intersection with Route 76 east of Tiff City. All through this area, the highway becomes more hilly and curvy. The road serves as the western terminus of Route 90 just before reaching Southwest City. South of Southwest City, the highway runs less than a mile before reaching the corner of Missouri, Arkansas, and Oklahoma becoming the concurrency of Arkansas Highway 43/Oklahoma State Highway 20. A stone marker is erected at the corner of the three states.

Major intersections

OKARMO Corner0.0000.000

SH-20 west / AR 43 south
Continuation in Oklahoma and Arkansas
McDonaldPrairie Township3.1695.100
Route 90 east – Noel
McMillen Tiff Township11.71918.860
Route 76 east – Anderson
Southern end of Route 76 overlap
Route 76 west – Tiff City
Northern end of Route 76 overlap
NewtonSeneca25.64141.265 US 60 – Wyandotte, Neosho

US 60 Bus. begins
Roundabout; southern end of US 60 Business overlap

US 60 Bus. west – Wyandotte
Northern end of US 60 Business overlap
I-44 west – Tulsa
Southern end of I-44 overlap
I-44 east – Springfield

I-44 BL begins / Route 86 east (Hearnes Boulevard)
Northern end of I-44 overlap; southern end of Loop 44 overlap
Jasper45.27472.861 I-44 BL / Route 66 (7th Street)Northern end of Loop 44 overlap
47.34976.201Zora StreetInterchange
Airport Drive49.37779.465 Route 171 (DeMott Drive)Roundabout
Twin GrovesMineral
township line
Route 96 to Route 171 – Carthage
BartonNashville Township67.796109.107 Route 126 – Pittsburg, Golden City
Central Township74.161119.351 US 160 – Mindenmines, Lamar
VernonDeerfield Township98.380158.327 US 54 – Nevada, Deerfield
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Related route

Seneca truck route

Route 43 Truck

Length1.97 mi (3.17 km)

Route 43 Truck is used to bypass a steep grade on Route 43 just south of Seneca, Missouri. This route is unsigned and concourrs with US 60 Bus.


  1. ^ a b Missouri Department of Transportation (December 27, 2020). MoDOT HPMAPS (Map). Missouri Department of Transportation. Retrieved December 27, 2020.
  2. ^ Missouri Atlas & Gazetteer, DeLorme, 1998, First edition, pp. 42, 50, and 60, ISBN 0-89933-224-2