K-128 (Kansas highway)

K-128
K-128 highlighted in red
Route information
Maintained by KDOT
Length	36.886 mi[2] (59.362 km)
Existed	January 7, 1937[1]–present
Major junctions
South end	US-24 / K-9 northwest of Glen Elder
Major intersections	US-36 west of Mankato
North end	N-78 at the Nebraska border
Location
Country	United States
State	Kansas
Counties	Mitchell, Jewell
Highway system
Kansas State Highway System Interstate US State Spurs
← K-127 → K-129

K-128 is a 36.9-mile-long (59.4 km) north–south state highway in the U.S. state of Kansas. K-128's southern terminus is at U.S. Route 24 (US-24) and K-9 northwest of Glen Elder, and the northern terminus continues as Nebraska Highway 78 (N-78) at the Nebraska border north of Burr Oak. West of Mankato, a small section of K-128 is co-designated as US-36.

Before state highways were numbered in Kansas, there were auto trails, which were an informal network of marked routes that existed in the United States and Canada in the early part of the 20th century. The section of K-128 that overlaps with US-36 was part of the Pikes Peak Ocean to Ocean Highway auto trail. K-128 was first designated on January 7, 1937, and ran from US-24 and K-9 north to US-36. In February 1996, K-28 was truncated to K-14 in Jewell, and the section of K-28 from US-36 to the Nebraska state line became an extension of K-128.^[3]