Location: Paducah Rd and KY 121, Mayfield Immediately after KY 121, we’ll approach KY 3141. Location: Paducah Rd and Cortland Ln, Mayfield Reassurance shield after the 121 junction as we approach 3141. Location: Paducah Rd and Crittendon Ln, Mayfield Turn right for KY 3141, a short spur to a KYTC maintenance facility.  N to US-45 … Continue reading U.S. Route 45, KY-121 to KY-3141