sentences:  Technically, the Commonwealth of Kentucky could request a waiver from the AASHTO that would allow the state to apply the I-69 designation to its parkways before upgrades are completed, but this would only be able to have been done if adjoining segments in Tennessee or Indiana are completed first.The Purchase Parkway has been designated as future I-69, but the route could not be signed as I-69 until several interchanges, including the interchange with I-24, are upgraded to Interstate standards., construction was ongoing on the northern portion of the parkway between Mayfield and I-24, including the reconfiguration of the KY 348 interchange at Benton from a toll-booth design (with opposing loop ramps) to a diamond interchange, the installation of cable barriers in the narrow parkway median, and resurfacing of the mainline to increase bridge clearances and lengthen merge lanes at other interchanges along this section.