# Kentucky Route 139

Kentucky Route 139 (KY 139) is a 55.797-mile-long (89.797 km) state highway in Kentucky that runs from Tennessee State Route 120 at the Tennessee state line south of Cadiz to Kentucky Route 120 in rural Crittenden County north of Princeton via Cadiz and Princeton.

## Route description

KY 120 begins at the Tennessee state line just west of the Fort Campbell Military Reservation. The first city it goes through is Cadiz, where it intersects the concurrent U.S. Route 68 (US 68) and KY 80, as well as US 68's business loop in downtown Cadiz. After entering Caldwell County, it then intersects Interstate 24 (I-24) where north of the ramp is the frontage roads, KY 6059 and KY 6060. South from that, at the point where Trigg County meets with Caldwell and Lyon counties.
At Princeton, KY 139 runs concurrently with US 62 and KY 91. KY 91/KY 139 together turns right on the west side of town and then intersects with Interstate 69 (I-69). KY 139 turns off KY 91 and then goes due north to intersect KY 70 in northern Caldwell County. Then KY 139 ends at a junction with KY 120 in rural southeastern Crittenden County just west of the Tradewater River.

## Major intersections

| County | Location | mi | km | Destinations | Notes |
| Trigg | ​ | 0.000 | 0.000 | SR 120 south (Cadiz Road) | Southern terminus; Kentucky-Tennessee state line |
| Trigg | ​ | 6.257 | 10.070 | KY 164 (Roaring Spring Road / Linton Road) | |
| Trigg | ​ | 9.000 | 14.484 | KY 807 west (Donaldson Creek Road) / Maggie Road | Eastern terminus of KY 807 |
| Trigg | ​ | 13.125 | 21.123 | KY 525 south (New Hope Road) | Northern terminus of KY 525 |
| Trigg | ​ | 14.415 | 23.199 | KY 272 (Caledonia Road) | |
| Trigg | ​ | 15.285 | 24.599 | US 68 / KY 80 | |
| Trigg | Cadiz | 16.706 | 26.886 | US 68 Bus. (Main Street) | |
| Trigg | Cadiz | 16.999 | 27.357 | Marion Street (KY 929 east) / Marion Street | Western terminus of KY 929 |
| Trigg | Cadiz | 17.103 | 27.525 | KY 778 north (Brown Street) / Brown Street | Southern terminus of KY 778 |
| Trigg | Cadiz | 17.905 | 28.815 | KY 124 north (Cerulean Road) | Southern terminus of KY 124 |
| Trigg | ​ | 23.789 | 38.285 | KY 276 west (Hurricane Road) | South end of KY 276 overlap |
| Trigg–Caldwell– Lyon county tripoint | ​ | 24.620 | 39.622 | KY 93 north / KY 276 east (Blackhawk Road) | North end of KY 276 overlap; southern terminus of KY 93 |
| Caldwell | ​ | 25.078– 25.098 | 40.359– 40.391 | I-24 – Paducah, Nashville | I-24 exit 56 |
| Caldwell | ​ | 27.349 | 44.014 | KY 514 east (Nabb School Road) | South end of KY 514 overlap |
| Caldwell | ​ | 28.491 | 45.852 | KY 514 west (Nabb School Road) | North end of KY 514 overlap |
| Caldwell | ​ | 29.677 | 47.761 | KY 1272 west | Eastern terminus of KY 1272 |
| Caldwell | ​ | 30.646 | 49.320 | KY 126 south | Northern terminus of KY 126 |
| Caldwell | ​ | 30.967 | 49.837 | KY 515 west (Eddy Creek Church Road) | Eastern terminus of KY 515 |
| Caldwell | Princeton | 35.491 | 57.117 | KY 2080 north (Cadiz Street) / Cadiz Street | Southern terminus of KY 2080 |
| Caldwell | Princeton | 35.967 | 57.883 | KY 293 south (South Jefferson Street) / West Legion Street | South end of KY 293 overlap |
| Caldwell | Princeton | 36.290– 36.381 | 58.403– 58.550 | US 62 east / KY 293 north (North Jefferson Street) / KY 91 south (East Main Street) | North end of KY 293 overlap; south end of US 62 / KY 91 overlap |
| Caldwell | Princeton | 37.408 | 60.202 | US 62 west | North end of US 62 overlap |
| Caldwell | Princeton | 37.881 | 60.964 | I-69 – Elizabethtown, Paducah | I-69 exit 79 |
| Caldwell | ​ | 39.464 | 63.511 | KY 91 north (Marion Road) | North end of KY 91 overlap |
| Caldwell | ​ | 43.662 | 70.267 | KY 1119 south (Clayton Road) | Northern terminus of KY 1119 |
| Caldwell | ​ | 47.141 | 75.866 | KY 70 | |
| Caldwell | ​ | 48.747 | 78.451 | KY 902 west (Creswell Road) / Creswell Road | Eastern terminus of KY 902 |
| Caldwell | ​ | 52.765 | 84.917 | KY 1592 east (Webster Road) | Western terminus of KY 1592 |
| Crittenden | ​ | 55.797 | 89.797 | KY 120 | Northern terminus |
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi Concurrency terminus ||||||