Kentucky supplemental roads and rural secondary highways are the lesser two of the four functional classes of highways constructed and maintained by the Kentucky Transportation Cabinet, the state-level agency that constructs and maintains highways in Kentucky. The agency splits its inventory of state highway mileage into four categories: The State Primary System includes Interstate Highways, Parkways, and other long-distance highways of statewide importance that connect the state's major cities, including much of the courses of Kentucky's U.S. Highways. The State Secondary System includes highways of regional importance that connect the state's smaller urban centers, including those county seats not served by the state primary system. The Rural Secondary System includes highways of local importance, such as farm-to-market roads and urban collectors. Supplemental Roads are the set of highways not in the first three systems, including frontage roads, bypassed portions of other state highways, and rural roads that only serve their immediate area.
The same-numbered highway can comprise sections of road under different categories. This list contains descriptions of Supplemental Roads and highways in the Rural Secondary System numbered 700 to 799 that do not have portions within the State Primary and State Secondary systems.
Kentucky Route 700
Kentucky Route 700 is a rural secondary state highway in central McCreary County that runs from a boat ramp along the Big South Fork of the Cumberland River in the northern portion of the Big South Fork National River and Recreation Area to Kentucky Route 90 south of Honeybee via Marshes Siding.
Major intersections
Kentucky Route 701
Kentucky Route 701 (KY 701) is a rural secondary state highway in central McCreary County that runs from Kentucky Route 92 east of Smith Town to Kentucky Route 1651 southwest of Whitley City.
Kentucky Route 702
Kentucky Route 702 (KY 702) is a supplemental state highway in southwestern Elliott County that runs from a point along Neal Howard Creek Road southwest of Little Sandy to Kentucky Route 7 at Little Sandy.
Kentucky Route 703
Kentucky Route 703 (KY 703) is a state highway in central Hickman County that runs from U.S. Route 51 in northern Clinton to Kentucky Route 307 and O'Neal Road north of Nichols.
Major intersections
Kentucky Route 704
Kentucky Route 704 (KY 704) is a rural secondary state highway in northeastern Cumberland County and southern Adair County that runs from Kentucky Route 61 north of Burkesville to Kentucky Route 55 south of Columbia via Amandaville and Fairplay.
Major intersections
Kentucky Route 705
Kentucky Route 705 (KY 705) is a rural secondary state highway in southwestern Morgan County that runs from Kentucky Route 844 at Salem to Kentucky Route 772 northwest of Bonny via Nickell, Grassy Creek, and Woodsbend.
Major intersections
Kentucky Route 706
Kentucky Route 706 (KY 706) is a rural secondary state highway in northeastern Morgan County and southern Elliott County that runs from Kentucky Route 172 in Crockett to Kentucky Route 7 northeast of Green via Eldridge, and Isonville.
Major intersections
Kentucky Route 707
Kentucky Route 707 (KY 707) is a rural secondary state highway in northeastern Lawrence County that runs from Kentucky Route 3 northwest of Fallsburg to U.S. Route 23 at Buchanan.
Major intersections
Kentucky Route 708
Kentucky Route 708 (KY 708) is a rural secondary state highway in northeastern Owsley County and eastern Lee County that runs from Kentucky Route 30 in Lerose to Spencer Bend Road on the Breathitt County line northeast of Fillmore via Lone, Tallega, Canyon Falls, and Fillmore.
Major intersections
Kentucky Route 711
Kentucky Route 711 (KY 711) is a rural secondary highway in northeastern Morgan County and northwestern Elliott County that runs from Redwine Road and Clevitt Branch Road east of Redwine to Kentucky Route 173 on the Rowan County line northwest of Wyett via Redwine, Wrigley, Leisure, Oak Hill, and Blairs Mills.
Major intersections
Kentucky Route 712
Kentucky Route 712 (KY 712) is a rural secondary state highway in eastern Oldham County and western Henry County that runs from Kentucky Route 146 in northeastern LaGrange to Kentucky Route 153 in northern Jericho via Tarascon.