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:[1]
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 702 (KY702) is a 2.855-mile-long (4.595km) 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 714 is a 8.733-mile-long (14.054km) rural secondary highway in southeastern Shelby County. The highway begins at a four-legged intersection in the village of Southville. KY 44 heads south along Mount Eden Road and west along Southville Pike, KY 53 heads north along Mount Eden Road, and KY 714 heads east along Hempridge Road. KY 714 meets the eastern end of KY 2866 (Woodlawn Road) and curves north to Hemp Ridge, where the route crosses a tributary of Guist Creek and an R.J. Corman Railroad Group line. The highway crosses over I-64 with no access and meets the eastern end of KY 1790 (Hooper Station Road) near Hooper before reaching its northern terminus at US 60 (Frankfort Road) south of Guist Creek Lake and west of Clay Village.[1][16][17]
Kentucky Route 718 is a 10.813-mile-long (17.402km) rural secondary state highway in eastern Knox County that runs from Kentucky Route 223 and Walker Road at Dewitt to Paint Gap Branch Road and Pigeon Fork Road northeast of Erose via Walker and Erose.
Kentucky Route 730 is an 11.784-mile-long (18.965km) rural secondary highway in eastern Lyon County. The highway begins at KY 903 north of Lamasco. KY 730 heads northwest and crosses Sand Hollow Creek and the Eddy Creek arm of Lake Barkley. The highway meets the eastern end of KY 818 before crossing Glass Creek at its junction with KY 293 at Saratoga. KY 730 runs concurrently with KY 293 west to the latter route's terminus at KY 93. Along the way, the routes have two junctions with KY 818 and a diamond interchange with I-24. At the KY 93–KY 293 junction, KY 730 also meets the eastern end of KY 1055. KY 730 heads north along KY 93 and splits west at the south city limit of Eddyville. The highway meets the western end of KY 1055 shortly before the highway reaches Lake Barkley, where the highway turns onto Water Street, which passes between the lake and the Kentucky State Penitentiary, to its terminus at a dead end.[1][28][29]
Kentucky Route 731 is a 1.579-mile-long (2.541km) rural secondary state highway in western downtown Paducah that runs from U.S. Routes 45 and 62 to U.S. Route 60 and Downs Drive.
Kentucky Route 732 is a 9.571-mile-long (15.403km) rural secondary state highway in eastern Calloway County that runs from Kentucky Route 94 and Todd Road to Waterview Lane and Richard Lane along Kentucky Lake east of Boatwright.
Kentucky Route 738 is a 6.706-mile-long (10.792km) rural secondary state highway in west southwestern Clinton County. The route runs from the Wolf River Dock on Dale Hollow Lake just a few feet north of the Tennessee state line to U.S. Route 127 Business in southern Albany.
Kentucky Route 740 is a 13.807-mile-long (22.220km) rural secondary highway in northeastern Barren County. The highway begins at US 68 and KY 80, which run concurrently on Edmonton Road, just east of the city of Glasgow. KY 740 heads northeast along Coral Hill Road, which crosses Beaver Creek and meets the western end of KY 2131 (French Mill Road) at Coral Hill. The highway parallels and crosses Duff Branch and intersects KY 70 (Hiseville Main Street) in Hiseville. KY 740 continues northeast along Hiseville–Park Road, which crosses Blue Spring Creek and intersects KY 571 (Seymour–Park Road) at Park. The highway parallels the Barren–Metcalfe county line to its terminus at KY 677 at the Barren–Hart county line very close to the Barren–Metcalfe–Hart county tripoint. KY 677 heads north onto Hart County and southeast into Metcalfe County.[1][38][39]
Kentucky Route 742 is a 5.109-mile-long (8.222km) rural secondary highway in central McCreary County. The highway begins on Mine 18 Road at the boundary of Big South Fork National River and Recreation Area. KY 742 heads south and curves back north and crosses Roaring Paunch Creek. The highway passes through Hickory Grove and intersects KY 741 near its southern end before reaching its eastern terminus at KY 1651 at Revelo.[1][41][42]
Kentucky Route 743 is a 12.914-mile-long (20.783km) rural secondary highway in northeastern Warren County and southern Edmonson County. The highway begins at US 31W (Louisville Road) west of Tuckertown. KY 743 follows Boiling Springs Road, which heads northwest to its junction with KY 2630 (Fairview Boiling Springs Road) then heads north toward the Warren–Edmonson county line. The highway crosses Little Beaverdam Creek south of the county line and meets the eastern end of KY 1749 (Wingfield Church Road). KY 743 continues along Chalybeate School Road, which turns east toward Chalybeate. The highway crosses Alexander Creek, meets the northern end of KY 2326 (Otter Gap Road), and meets the southern end of KY 3611 just west of its northern intersection with KY 101 (Chalybeate Road) south of Chalybeate. KY 743 runs concurrently south with KY 101, then the former highway turns east onto New Grove Road. The highway crosses Beaverdam Creek on its way to its end at KY 422 (Pig Road) south of Pig.[1][43][44][45][46]
Kentucky Route 745 is a 8.783-mile-long (14.135km) rural secondary highway that runs across northeastern Metcalfe County and south central Green County through mostly rural areas. The route follows Mell Ridge Road, running from U.S. 68 east of Sulphur Well to Kentucky Route 487 south of Exie.
Kentucky Route 376 (KY 376) is a 5.599-mile-long (9.011 km) state highway in the U.S. state of Kentucky. The highway connects mostly rural areas of Breckinridge and Meade counties with Payneville.
Kentucky Route 622 is a rural secondary state highway in South Central Kentucky. The 20.020-mile-long (32.219 km) route traverses eastern Simpson and south-central Warren Counties.
Kentucky Route 645 (KY 645) is a 14.692-mile-long (23.644 km) state highway in eastern Kentucky that runs from U.S. Route 23 (US 23) northeast of Ulysses to, temporarily, a dead end east of KY 40 southeast of Inez.
Kentucky Route 717 (KY 717) is a 2.977-mile-long (4.791 km) state highway in northeastern Boone County and northwestern Kenton County, Kentucky, that runs from KY 842 and the southbound lanes of Interstate 71 (I-71) and I-75 in northwestern Florence to KY 3076 and Turfway Road in northwestern Erlanger.
Kentucky Route 1010 (KY 1010) is an 17.826-mile-long (28.688 km) state highway in the U.S. state of Kentucky. The route traverses rural areas of eastern Wolfe and southwestern Morgan counties. KY 1010 runs from KY 1812 northwest of Malaga to U.S. Route 460 (US 460) southeast of Hazel via Lexie, Rose Chapel, Hazel Green, Toliver, and Maytown.
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