Properly designed and constructed drainage layers can be used for effective control of surface water infiltration. Former pavement design methods often have resulted in base courses that have not drained well, thereby resulting in some premature failures of the pavement structure. The Kentucky Department of Highways is currently reviewing proposed guidelines for design of highway pavements. The guidelines propose the use of open graded, free draining, aggregate bases for controlling infiltrated surface water. However, interim design guidelines do not specifically address the design of aggregate drainage blankets. The purpose of this study was to develop recommendations relating to the specification, design, and construction of pavement drainage layers as an integral part of the pavement structure.
Digital Object Identifier
Hunsucker, David Q. and Meade, Bobby W., "Subsurface Drainage of Highway Pavements" (1997). Kentucky Transportation Center Research Report. 531.