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Pages 4-5

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From page 4...
... 4 Background The necessity and effectiveness of subsurface drainage are important considerations in achieving pavement performance expectations and preserving public investments. A drained pavement structure typically has a subsurface layer that is intended to evacuate water quickly, thereby minimizing or eliminating any detrimental effects of water on moisture-sensitive subbase or subgrade materials.
From page 5...
... Introduction 5   obtained from the literature review, survey of practice, and follow-up interviews formed the basis for this synthesis. Report Organization This synthesis is organized into the following chapters: • Chapter 1 -- Introduction.

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