Kentucky Route 420

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Kentucky Route 420

KY 420 highlighted in red
Route information
Maintained by KYTC
Length5.120 mi[1] (8.240 km)
Major junctions
South end US 127 south of Frankfort
Major intersections
North end US 127 in Frankfort
CountryUnited States
Highway system
KY 419 US 421

Kentucky Route 420 (KY 420) is a 5.1-mile-long (8.2 km) state highway in the U.S. state of Kentucky. The highway connects southern parts of Franklin County with Frankfort.

Route description

Route 420 north of the Kentucky State Capitol

KY 420 begins at an intersection with U.S. Route 127 (US 127) south of Frankfort, within the southern part of Franklin County, where the roadway continues as Old Lawrenceburg Road. It travels to the east-southeast and curves to the east. It intersects the southern terminus of KY 3163 (Lawrenceburg Road). It curves to the northeast and crosses over Cedar Run. Then, it begins to parallel that creek. It intersects the southern terminus of KY 1263 (Johnson Road). It curves to the north and travels under two overpasses that carry Interstate 64 (I-64). It then crosses over Cedar Run. The highway very briefly travels along the southeastern edge of the city limits of Frankfort. Just after it leaves the city limits, it begins a brief concurrency with KY 676 (East–West Connector). The two highways cross over Cedar Run. When KY 420 splits off, it travels to the north-northwest and crosses over Cedar Run. It then enters Frankfort and intersects the northern terminus of KY 1263. It curves to the north-northeast and travels under a parking garage for the Kentucky State Capitol. It then travels just to the east of the capitol. It curves to the west-northwest and enters downtown Frankfort. KY 420 turns right, to the north-northeast, onto Capital Avenue. It then begins a concurrency with U.S. Route 60 (West 2nd Street). The two highways cross over the Kentucky River on the War Mothers Memorial Bridge and immediately split. One block later, KY 420 splits onto one-way streets. Northbound traffic uses High and Mero streets, while southbound traffic uses Ann and Clinton streets. Both directions of traffic travel to the north-northeast and cross over some railroad tracks. They pass the Thomas D. Clark Center for Kentucky History. Northbound traffic then passes the Frankfort State Office Building, which houses the Kentucky Department of Revenue, and then intersects the southern terminus of KY 2261 (Holmes Street). Both directions of traffic head to the west-northwest. Northbound traffic passes the headquarters of the Kentucky Transportation Cabinet. Then, southbound traffic passes the Old State Capitol building. Both directions pass the Frankfort Convention Center. After that, northbound traffic passes the Kentucky Department of Education. Immediately, the highway meets its northern terminus, an intersection with US 127/US 421 (Wilkinson Boulevard / West Frankfort Connector). This intersection is on the southeastern edge of River View Park.[1]

Major intersections

The entire route is in Franklin County.

0.0000.000 US 127 – Lawrenceburg, FrankfortSouthern terminus
KY 3163 north (Lawrenceburg Road)
Southern terminus of KY 3163
KY 1263 north (Johnson Road)
Southern terminus of KY 1263
KY 676 west (East–West Connector)
Southern end of KY 676 concurrency
KY 676 east (East–West Connector)
Northern end of KY 676 concurrency
KY 1263 south
Northern terminus of KY 1263
US 60 west (West 2nd Street) – Shelbyville
Southern end of US 60 concurrency
4.3687.030War Mothers Memorial BridgeCrossing of the Kentucky River
US 60 east (East Main Street) – Versailles
Northern end of US 60 concurrency
KY 2261 north (Holmes Street)
Southern terminus of KY 2261; no access from KY 2261 to KY 420 south or vice versa
5.1208.240 US 127 / US 421 (Wilkinson Boulevard / West Frankfort Connector) – Lawrenceburg, OwentonNorthern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ a b c Division of Planning (n.d.). "Official Milepoint Route Log Extract (Franklin County)". Highway Information System. Kentucky Transportation Cabinet. Retrieved June 21, 2016.