In 1940, the Kentucky Department of Highways constructed an experimental concrete pavement which was one of a group of six built in co-operation with the Bureau of Public Roads by the States of Minnesota, California, Kentucky, Michigan, Missouri and Oregon. The purpose of these projects was to study and evaluate the performance of such pavements over a period of years with specific regard to types of joints and spacings. The Kentucky project, consisting of 6.27 miles, was constructed in Daviess County, beginning approximately 6 miles south of Owensboro on US Route 231 (formerly Ky. Route 71).

This report is a continuation of the 1940 joint-spacing and pavement performance study. A complete discussion of the original scope, purpose, and early performance of this project has been given in previous reports (l, 2, 3, and 4).

The present report is essentially a 17-yr. performance report but includes some data obtained through 1958. Subgrade, traffic, riding quality, and over-all condition data are provided.

Report Date


Report Number

No. 134

Digital Object Identifier