1、ASCE STANDARD ANSI/ASCE/EWRI 66-17 Management Practices for Control of Erosion and Sediment from Construction ActivitiesASCE STANDARD ANSI/ASCE/EWRI 66-17 Management Practices for Control of Erosion and Sediment from Construction Activities PUBLISHED BY THE AMERICAN SOCIETY OF CIVIL ENGINEERSLibrary
2、 of Congress Cataloging-in-Publication Data Names: American Society of Civil Engineers. Title:Managementpracticesforcontroloferosionandsedimentfromconstructionactivities/ American Society of Civil Engineers. Description:Reston,Virginia:AmericanSocietyofCivilEngineers,2017| “ANSI/ASCE/ EWRI 66-17.” |
3、 Includes bibliographical references and index. Identi ers: LCCN 2017015047 | ISBN 9780784414224 (soft cover : alk. paper) | ISBN 9780784449407 (PDF) Subjects: LCSH: Soil stabilizationStandards. | Building sitesUnited StatesStandards. | Soil erosionPreventionStandards. | Sediment controlStandards. |
4、 Soil conservation Standards. Classi cation: LCC TA749 .A44 2017 | DDC 624.1/51363dc23 LC record available at https:/lccn.loc.gov/2017015047 Published by American Society of Civil Engineers 1801 Alexander Bell Drive Reston, Virginia, 20191-4382 www.asce.org/bookstore | ascelibrary.org This standard
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12、. Errata: Errata, if any, can be found at http:/dx.doi.org/10.1061/9780784414224. Copyright 2017 by the American Society of Civil Engineers. All Rights Reserved. ISBN 978-0-7844-1422-4 (soft cover) ISBN 978-0-7844-4940-7 (PDF) Manufactured in the United States of America. 2 42 32 22 12 01 91 81 7 12
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19、TENTS PREFACE . ix ACKNOWLEDGMENTS. xi 1 INTRODUCTION AND SCOPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 Appropriate Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2 BACKGROUND. . . . . . . .
20、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.1 Erosion and Sediment Problems Associated with Construction Activities. . . . . . . . . . . . . . . . . . . 3 2.2 Environmental Impacts of Sediment . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
21、 . . . . . . . . . 4 2.2.1 In-stream and Off-stream Impacts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.2.2 Speci c Environmental Impacts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.3 Economic Impacts of Sediment . . . . . . . . . . . . . .
22、 . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.4 Other Potential Nonsediment Pollutants. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.4.1 Metals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.4.2 Nutrie
23、nts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.4.3 Pesticides. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.4.4 Spills and Illegal Dumping of Construction Materials . . . . . . . . . . . . .
24、 . . . . . . . . . . . 5 2.4.5 Miscellaneous Wastes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.5 Economic Advantages of Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.6 Environmental Advantages of Compliance . . . .
25、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 REGULATIONS AND PERMITTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.1 Model Ordinance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.2
26、Federal Regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.2.1 NPDES Program (Phases I and II) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.2.2 Phase II Municipal Requirements. . . . . . . . . . . . . . . . . . . .
27、 . . . . . . . . . . . . . . . 8 3.3 State and Local Regulations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.3.1 Declaration of Purpose and Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.3.2 De nitions . . . . . . . . . . .
28、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.3.3 Application Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.3.4 Permit Requirements and Approval Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.3.5 C
29、ontents of an Erosion and Sediment Control Plan . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.3.6 Design Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.3.7 Inspection and Monitoring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30、 . . . . . . . . . 8 3.3.8 Maintenance Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.3.9 Enforcement Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3.3.10 Training and Certi cation . . . . . . . . . . . . . .
31、 . . . . . . . . . . . . . . . . . . . . . . . . . 8 4 CONTROL PROCESSES AND SITE PLANNING CONCEPTS . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4.1 Erosion Processes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4.1.1 Raindrop Erosion .
32、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4.1.2 Sheet Erosion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4.1.3 Rill Erosion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
33、. . . . . 9 4.1.4 Gully Erosion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4.1.5 Channel Erosion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4.2 Factors In uencing Erosion . . . . . . . . . . . . . . . . .
34、 . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4.2.1 Climate / Rainfall (R) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 4.2.2 Soils and Soil Erodibility (K). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 4.2.3 Topography .
35、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 4.2.4 Vegetative Cover (C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 4.2.5 Conservation Practices (P). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
36、. . . . . . . . 11 4.3 Sedimentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 4.4 Site Planning Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Management Practices for Control of Eros
37、ion and Sediment from Construction Activities v4.4.1 Plan the Development to Fit the Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 4.4.2 Determine the Limits of Clearing and Grading. . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 4.4.3 Divide the Site into Natur
38、al Drainage Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 4.4.4 Minimize the Area and Duration of Exposure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 4.4.5 Apply Perimeter Control Practices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 4.
39、4.6 Apply Erosion Control Practices to Prevent Excessive On-Site Damage . . . . . . . . . . . . . . 12 4.4.7 Keep Runoff Velocities Low and Retain Runoff On Site . . . . . . . . . . . . . . . . . . . . . . 12 4.4.8 Stabilize Disturbed Areas Immediately . . . . . . . . . . . . . . . . . . . . . . . .
40、 . . . . . . . . 12 4.4.9 Implement a Thorough Maintenance and Follow-Up Program. . . . . . . . . . . . . . . . . . . . 12 4.4.10 Summary of Concepts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 5 CONTROL CONCEPTS, PRACTICES, AND STANDARDS. . . . . . . . . . .
41、. . . . . . . . . . . . . . . . . . 13 5.1 Erosion and Sediment Control Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 5.1.1 Erosion Control Practices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 5.1.2 Sediment Control Practice
42、s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 5.1.3 Operation and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 5.2 Erosion Control Practices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
43、. . . . . 13 5.2.1 Site Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 5.2.1.1 Land Grading/Roughening. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 5.2.1.2 Topsoiling . . . . . . . . . . . . . . . . . . . . . . . . . . .
44、. . . . . . . . . . . . . . 14 5.2.2 Vegetative Stabilization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 5.2.3 Blankets and Matting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 5.2.4 Road Stabilization . . . . . . . . .
45、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 5.2.4.1 Construction Road Stabilization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 5.2.4.2 Stabilized Construction Entrances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 5.2.4.3 Stabilized Constr
46、uction Entrances with Wash Racks. . . . . . . . . . . . . . . . . . . 17 5.3 Sediment Control Measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 5.3.1 Sediment Barriers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
47、. 17 5.3.2 Sediment Traps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 5.3.3 Sediment Basins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 5.4 Water Conveyance Measures . . . . . . . . . . . . . . . . . . . .
48、. . . . . . . . . . . . . . . . . . . . . . 24 5.4.1 Dikes and Diversions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 5.4.2 Downdrains and Flumes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 5.5 Grass or Lined Waterways .
49、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 5.6 Inlet and Outlet Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 5.6.1 Riprap In ow Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 5.6.2 Gabion In ow Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 5.6.3 Stone Check Dams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 5.6.4 Stone Out
