ROADSIDE GRADING AND DRAINAGE DESIGN
1950
IF WE ACCEPT THE CONCEPT THAT THE "RANGE" IN CLIMATIC CONDITIONS CONTROLS THE ENGINEERING DESIGN, IT BECOMES POSSIBLE TO PROVIDE THE ENGINEER WITH A MEANS OF CLASSIFYING, EVALUATING, AND ADJUSTING THE DESIGN OF GRADED CROSS SECTIONS FOR THE POSITIVE PROTECTION OF ROADSIDE SLOPES AND DRAINAGEWAYS. WORKING ON THIS PREMISE, THE COMMITTEE ON ROADSIDE DEVELOPMENT HAS INITIATED THIS PRELIMINARY REPORT AS AN ADVANCE OUTLINE OF THE BASIC PRINCIPLES AND ELEMENTS OF GRADING AND DRAINAGE DESIGN AND PRACTICES THAT HAVE EVOLVED THROUGH EXPERIENCE OF THE STATES IN THE VARIOUS REGIONS. A CORRELATED CLASSIFICATION OF TOPOGRAPHIC REGIONS AND OF TYPES OF PRECIPITATION IN RELATION TO PLANT GROWTH REGIONS IS SUGGESTED BY THE COMMITTEE AS A GUIDE FOR FURTHER REGIONAL AND MORE LOCALIZED STUDY BY ROADSIDE ENGINEERS. /AUTHOR/
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