Transcription of CHAPTER 5 CULVERTS - Michigan
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CHAPTER 5 CULVERTS NOTE: All questions and comments should be directed to the Drainage Specialist, Design Support Area. Revised September 2009 CULVERTS 5-2 MDOT Drainage Manual CHAPTER Table of Contents Introduction/Purpose 5-5 Definitions 5-6 Policy and Design Criteria 5-9 Introduction 5-9 culvert Policy 5-11 culvert Pipe Class Designation 5-12 culvert Usage Guidelines 5-12 culvert Environmental Permit Requirements 5-13 culvert Design Considerations 5-13 End Treatment (Inlet or Outlet) 5-17 Pipe End Treatments 5-20 Boxes/Slab End Treatments 5-21 Weep Holes 5-23 culvert Extensions and Replacements 5-23 Bedding and Filling Around Pipe CULVERTS 5-25 Related Designs 5-25 Design Guidance and Procedure 5-26 Approach 5-26
the backwater profile upstream of the tailwater. Culverts 5-7 MDOT Drainage Manual Harmful Interference - MDEQ defines harmful interference as cause of an unnaturally high stage or unnatural direction of flow on a river or stream that causes, or may cause, damage to property, a threat to life, a threat of personal injury, or a threat to water ...
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