Kentucky Route 66
KY 66 highlighted in red
Route information
Maintained by KYTC
Length	46.59 mi[1] (74.98 km)
Major junctions
North end	KY 11 near Oneida
Major intersections	US 421 / KY 80 near Big Creek Hal Rogers Parkway near Big Creek
South end	US 25E in Pineville
Location
Country	United States
State	Kentucky
Counties	Bell, Clay, Leslie
Highway system
Kentucky State Highway System Interstate US State Parkways
← I-65 → KY 67

Kentucky Route 66 (KY 66) is a 46.59-mile-long (74.98 km) state highway in southeastern Kentucky. The route runs from Oneida in Clay County to Pineville in Bell County.

Major intersections

County	Location	mi	km	Destinations	Notes
Bell	Pineville	0.000	0.000	US 25E (Bob Madon Bypass)	Southern terminus
		0.223	0.359	KY 2394 north (Dorton Branch Road)	Southern terminus of KY 2394
	​	1.557	2.506	KY 221 east (Stoney Fork Road)	Western terminus of KY 221
	​	4.985	8.023	KY 2133 west (White Mountain Road)	Eastern terminus of KY 2133
	​	17.946	28.881	KY 2011 south	Northern terminus of KY 2011
Clay	​	22.265	35.832	KY 1524 west	Eastern terminus of KY 1524
	​	23.359	37.593	KY 1850 east	Western terminus of KY 1850
Leslie	​	25.380	40.845	KY 406 north	Southern terminus of KY 406
Clay	​	31.161	50.149	KY 2000 west	Eastern terminus of KY 2000
	​	39.695	63.883	US 421 north / KY 80 west	South end of US 421/KY 80 concurrency
	​	40.470	65.130	US 421 south / KY 80 east – Hyden, Harlan	North end of US 421/KY 80 concurrency
	​	41.119	66.175	KY 66 Conn. west to Hal Rogers Parkway	Short connector road between KY 66 and Hal Rogers Parkway
	​	44.521	71.650	KY 149 west	Eastern terminus of KY 149
	Oneida	54.467	87.656	KY 1482 north	Southern terminus of KY 1482
		54.726	88.073	2nd Street (KY 3014 south)
		54.809	88.207	1st Street (KY 3136 south)
		54.899	88.351	College Street (KY 3135 south)
		55.171	88.789	KY 11 to Hal Rogers Parkway west – Manchester, Booneville	Northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus