Kentucky Route 100 (KY 100) is a state highway in south-central Kentucky. The highway begins at an intersection with US 79 in Russellville in Logan County and travels east through Simpson, Allen, and Monroe Counties before ending at an intersection with KY 90 near Waterview in Cumberland County. --- Please note that the stated 102.060-mile overall length does not reflect changes made since this designation; in 2026, carefully measured county-by-county and verified by county milemarkers, actual on-the-ground overall length is 94.65-miles, a discrepancy of over 7-miles; this throws off the measurements in the "Major Intersections" Chart and it cannot be relied on for accuracy.
The route serves the cities of Franklin, Scottsville, and Tompkinsville. According to the Caves, Lakes, and Corvettes regional brochure by the Kentucky Department of Tourism, the entire KY 100 corridor is considered a Kentucky Scenic Byway."Scenic Byways". Caves, Lakes, and Corvettes. Kentucky Department of Tourism. Retrieved July 2, 2016.
Route description
Kentucky Route 100 begins at an intersection with US 79 (Russellville Bypass) on the eastern edge of Russellville in Logan County. From its western terminus, the highway travels east through the rolling farmland of southern Logan County, briefly sharing a concurrency with KY 663 before crossing into Simpson County.
In Simpson County, KY 100 enters Franklin, where it briefly runs concurrently with US 31W through downtown and overlaps KY 73 for a short distance. East of downtown, the route passes an interchange with Interstate 65 (Exit 6), providing access to the interstate, before continuing through the rural communities of Hickory Flat and Gold City.
After entering Allen County, KY 100 continues east through predominantly agricultural countryside to Scottsville, where it intersects the concurrent routes of US 31E and US 231. East of Scottsville, the highway passes through the community of Holland before crossing into Monroe County.
Within Monroe County, KY 100 serves the communities of Fountain Run, Flippin, Gamaliel, and Tompkinsville. The route briefly overlaps KY 63 in Gamaliel and again through part of downtown Tompkinsville. East of Tompkinsville, the highway continues through wooded hills and rural farmland before entering Cumberland County.
In Cumberland County, KY 100 continues east through sparsely populated rural terrain before reaching its eastern terminus at an intersection with KY 90 near Waterview.
History
Kentucky Route 100 was established as part of Kentucky's original numbered state highway system during the late 1920s. Its original western terminus was located near downtown Russellville, while its eastern terminus was located approximately west of Burkesville at KY 90. The original alignment passed through several small communities, including Leslie and Arat.
Between 1945 and 1958, KY 100 was rerouted near its eastern end. The final portion of the route and its eastern terminus were relocated westward to a new intersection with KY 90 near Waterview. The former alignment toward Burkesville was later redesignated as portions of KY 1205 and KY 691. Other sections of the original route were removed from the state highway system or transferred to local maintenance in Cumberland County.
The western end of KY 100 was later modified as part of improvements to the Russellville Bypass. In 2015, the western terminus was moved from its former location near downtown Russellville to an intersection with US 68 and US 68 Business on the east side of the city. In 2018, the western terminus was moved again to its current location at Franklin Road and the southern loop of the Russellville Bypass, following the relocation of US 79 onto the bypass. Major intersections
Related routes
Kentucky Route 100 Truck
Kentucky Route 100 Truck (KY 100 Truck) is a truck route of KY 100 in Franklin, Simpson County. The route follows KY 1008 along the southern side of Franklin, allowing commercial truck traffic to bypass the downtown section of KY 100. The truck route consists of the first of KY 1008.
References
External links
KY 100 at Kentucky Roads