It is recognized that speed is a vital contributing factor in many wet weather skidding accidents. Since the potential for skidding is so speed-sensitive, establishment of wet weather speed limits represents one approach to relieving the immediate problem in priority locations. This report includes an assimilation of findings from various related skid research efforts to form a basis for equating the available friction at a site (pavement skid resistance) to the expected friction demand for selected maneuvers. Friction normally decreases with increased speed. Since the speeds in question are usually in excess of 40 mph, the speed at which skid numbers are normally determined, the change in available friction with respect to speed must be considered. Nomographs and curves are presented in the report to accomplish this. The report presents curves to determine the critical speed for hydroplaning, stopping maneuvers, cornering maneuvers, passing maneuvers, emergency path-correction maneuvers, and combined maneuvers. A process is recommended by which wet weather speed zoning may be implemented at selected sites. A design process to establish the wet weather speed limit is discussed and examples are presented to illustrate the use of the curves in the report.