South Dakota Highway 73

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Highway 73

Length:

250 mi (402 km)

Formed:

1926

South end:

Nebraska border

North end:

Thunder Hawk

Major cities:

Martin, Philip, Faith, Lemmon

South Dakota numbered highways
< SD 71		SD 75 >

South Dakota Highway 73 is a state route that runs across western South Dakota. It begins at the Nebraska border north of Merriman, Nebraska, as a continuation of Nebraska Highway 61. It runs to the North Dakota border, where it continues as North Dakota Highway 49. It is 250 miles (402 kilometers) in length.

1 History
2 List of Counties
3 Legal Definition
4 External resources

[edit] History

When designated in the 1920's, South Dakota 73 only consisted of the segment from Faith (U.S. Highway 212) to Lemmon (U.S. Highway 12). The remainder of the route was unnumbered.

Around 1935, SD 73 was extended south from Faith, absorbing what had been a portion of South Dakota Highway 24 to near Plainview, then southeast via a new route to Philip. From there, it was concurrent with U.S. Highway 16 to Kadoka then southward along what had been South Dakota Highway 63. It continued south to the Nebraska border south of Martin, after sharing an alignment with U.S. Highway 18. Except for minor route straightening and a new concurrency with Interstate 90, this route has not changed since.

Around 1979, the northern terminus was extended east along U.S. 12 to Thunder Hawk, where it met up with a new road to link with ND 49.