# K-15 (Kansas highway)

K-15 is a 257.141-mile-long (413.828 km) north–south state highway in the U.S. State of Kansas. Originating at the Oklahoma state line as a continuation of State Highway 18 and continuing to the Nebraska state line where it continues as Nebraska Highway 15. Throughout Kansas, it is signed as the Eisenhower Memorial Highway due to its route through Abilene, where the Eisenhower Memorial Museum and Library is located.

## Route description

From the Oklahoma state line, K-15 runs north for 8 miles (13 km) before turning west for 4 miles (6.4 km) and overlapping US-166. It then returns to a due north course for 9 miles (14 km) to Dexter. Then, it heads west for 3 miles (4.8 km) where it again overlaps, this time with US-160.
At Winfield, K-15 follows US-77 west to Udall and then turns north then cuts through Mulvane. It then continues traveling north through Derby, finally joining I-135 and US-81 in Wichita. K-15 is a multilane divided highway beginning immediately southeast of Mulvane at its intersection with K-53. K-15 follows this four-lane alignment through both Mulvane and Derby until merging with I-135 in south Wichita.
K-15 follows the I-135 alignment to US-50, where it exits after less than a mile onto Kansas Avenue (old US-81) in Newton. It goes through Newton and North Newton then continues north to US-56 in Marion County. It overlaps US-56 east for 6 miles (9.7 km) then continues north through Durham before crossing K-4. It keeps heading towards Abilene, where it crosses I-70, and continues north to K-18.
K-15 overlaps K-18 another 4 miles (6.4 km) before returning north and crossing US-24 at Clay Center. K-9 joins K-15 for 12 miles (19 km), then departs. K-15 overlaps US-36 for 6 miles (9.7 km) before returning north to end at the Nebraska border, becoming N-15.
The entire section within Winfield is maintained by the city. The entire 1.630 miles (2.623 km) section of K-15 within Mulvane is maintained by the city. The entire 2.118 miles (3.409 km) section within Derby is maintained by the city. The section of K-15 in Wichita from the south city limit to I-135 is maintained by the city. The section of K-15 in Newton from US-50 to the north city limit is maintained by the city. The entire 2.758 miles (4.439 km) section within Abilene is maintained by the city. The entire 1.910 miles (3.074 km) section within Clay Center is maintained by the city.

## History

K-15 once split into two routes near Washington. The K-15W fork is the present-day routing of K-15, while K-15E was redesignated as part of K-148. Before 1988, the section of K-148 from the K-9/K-15 intersection to the Nebraska border was designated as K-15E and the section of K-15 from the K-9/K-148 intersection northward was designated as K-15W. Then in a May 2, 1988 resolution, K-148 was extended over the former K-15E and K-15W was renumbered to K-15. K-15 was the only state route in Kansas to fork in this manner.

## Junction list

| County | Location | mi | km | Destinations | Notes |
| Cowley | ​ | 0.000 | 0.000 | SH-18 south | Continuation into Oklahoma |
| Cowley | ​ | 7.870 | 12.666 | US-166 east – Sedan | South end of US-166 concurrency |
| Cowley | ​ | 11.820 | 19.022 | US-166 west – Arkansas City, Winfield | North end of US-166 concurrency |
| Cowley | ​ | 24.039 | 38.687 | US-160 east – Burden | North end of US-160 concurrency |
| Cowley | Winfield | 33.893 | 54.545 | K-360 west | Eastern terminus of K-360 |
| Cowley | Winfield | 36.592 | 58.889 | US-77 south (Main Street) / US-160 west (9th Avenue) – Wellington, Arkansas City | North end of US-160 concurrency; south end of US-77 concurrency |
| Cowley | ​ | 47.050 | 75.720 | US-77 north – El Dorado | North end of US-77 concurrency |
| Cowley | Udall | 53.009 | 85.310 | K-55 west (Clark Street) – Belle Plaine | Eastern terminus of K-55 |
| Sumner | Mulvane | 61.711 | 99.314 | K-53 west (119th Street South) | Eastern terminus of K-53; interchange |
| Sedgwick | ​ | 73.093 | 117.632 | I-35 / Kansas Turnpike | Exit 45 on I-35/Kansas Tpke. |
| Sedgwick | Wichita | 74.297 | 119.569 | Southeast Boulevard north | Interchange; northbound exit and southbound entrance |
| Sedgwick | Wichita | 74.297 | 119.569 | I-135 / US-81 south | Interchange; south end of I-135/US-81 concurrency; southbound exit and northbound entrance; exit 3A on I-135 |
| Overlap with I-135/US-81 ||||||
| Harvey | Newton | 101.083 | 162.677 | I-135 north / US-50 east (US-81 north) – Salina, Emporia | North end of I-135/US-81 concurrency; south end of US-50 concurrency; exit 30 on I-135 |
| Harvey | Newton | 101.841 | 163.897 | US-50 west – Hutchinson | Interchange; north end of US-50 concurrency |
| Harvey | Newton | 105.793 | 170.257 | I-135 / US-81 – Salina, Wichita | Exit 34 on I-135 |
| Marion | Goessel | 117.064 | 188.396 | K-215 west – Goessel | Eastern terminus of K-215 |
| Marion | ​ | 125.042 | 201.236 | US-56 west – McPherson | South end of US-56 concurrency |
| Marion | ​ | 126.526 | 203.624 | K-168 north – Lehigh | Southern terminus of K-168 |
| Marion | Hillsboro | 131.040 | 210.888 | US-56 east (200th Street) – Marion | North end of US-56 concurrency |
| Dickinson | Elmo | 153.095 | 246.383 | K-4 (600 Avenue) – Gypsum, Hope | |
| Dickinson | Abilene | 171.143 | 275.428 | I-70 / US-40 – Topeka, Salina | Exit 275 on I-70 |
| Dickinson | ​ | 177.539 | 285.721 | K-18 west (3000 Avenue) – Bennington | South end of K-18 concurrency |
| Dickinson | ​ | 181.505 | 292.104 | K-18 east (3000 Avenue) – Junction City | North end of K-18 concurrency |
| Clay | ​ | 188.561 | 303.460 | K-197 west – Industry | Eastern terminus of K-197 |
| Clay | ​ | 194.524 | 313.056 | K-82 east (7th Road) – Wakefield | Western terminus of K-82 |
| Clay | Clay Center | 205.578 | 330.846 | US-24 (Crawford Street) – Beloit, Manhattan | |
| Clay | ​ | 211.564 | 340.479 | K-80 west – Morganville | Eastern terminus of K-80 |
| Clay–Washington county line | ​ | 218.491 | 351.627 | K-9 west (Parallel Road) – Concordia | South end of K-9 concurrency |
| Washington | ​ | 223.011 | 358.901 | K-115 west (Palmer Avenue) – Palmer | Eastern terminus of K-115 |
| Washington | ​ | 230.585 | 371.091 | K-9 east / K-148 (10th Road) – Blue Rapids, Agenda | North end of K-9 concurrency; K-148 east is former K-15E; K-15 north of this point is former K-15W |
| Washington | Washington | 237.619 | 382.411 | US-36 east (7th Street) – Marysville | South end of US-36 concurrency |
| Washington | ​ | 243.966 | 392.625 | US-36 west (17th Road) – Belleville | North end of US-36 concurrency |
| Washington | ​ | 257.141 | 413.828 | N-15 north | Continuation into Nebraska |
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi Concurrency terminus Incomplete access Tolled ||||||