According to Joe Creason's report appearing in the Courier-Journal June 23, 1957 (copy attached), the Kentucky Rock Asphalt Company elected, June 14, 1957, to liquidate. Among the assets was a stockpile of material which was valued at $197,000 (I recall that the stated price, F.O.B. Sweden, in 1955 was $7.00 per ton); this calculates to be 28,140 tons-- which is a small quantity in comparison to the gross production (200,000 to 275,000 tons; $1.2 to $1.75 million) during some prior years. Apparently 1956 was the last year of sales, and I believe that Kentucky was the sole purchaser. Perhaps as much as 100,000 tons was used for re-surfacing in Kentucky during 1956. U.S. 60 and 421 on the east side of Frankfort was one of the last resurfacing projects.
Digital Object Identifier
Havens, James H., "Use of Kentucky Rock Asphalt for De-slicking Purposes" (1964). Kentucky Transportation Center Research Report. 1175.