K-13 (Kansas highway)

K-13 is a 14.62-mile-long (23.53 km) state highway in the northeastern part of the US state of Kansas. It begins at U.S. Route 24 (US-24) north of Manhattan and runs north to K-16 southwest of Fostoria. K-13 serves as the only northeasterly route out of Manhattan. The majority of the highway is exclusively in Pottawatomie County, with less than a mile of it existing in Riley County. The first two miles (3.2 km) traverse Tuttle Creek State Park, and crosses the Tuttle Creek Lake dam.

K-13 was first designated as a state highway in 1927, and at that time ran from US-77 in De Graff northward to Manhattan. By 1932, K-13 was realigned to intersect US-77 further south in El Dorado. By 1933, K-13 was extended north from Manhattan to K-9 north of Barrett. In 1958, K-13 was rerouted to cross the Tuttle Creek Dam and continue northward to K-16 southwest of Fostoria. Then in 1964, K-13's southern terminus was truncated to Manhattan, and the old section along with K-213 was redesignated as K-177. In 1991, K-13 was truncated to its current southern terminus.