1、ASCE STANDARDANSI/ASCE/EWRI66-17Management Practices for Control of Erosion and Sediment from Construction ActivitiesASCE STANDARD ANSI/ASCE/EWRI66-17Management Practicesfor Control of Erosionand Sediment fromConstruction ActivitiesPUBLISHED BY THE AMERICAN SOCIETY OF CIVIL ENGINEERSLibrary of Congr
2、ess Cataloging-in-Publication DataNames: American Society of Civil Engineers.Title: Management practices for control of erosion and sediment from construction activities /American Society of Civil Engineers.Description: Reston, Virginia : American Society of Civil Engineers, 2017 | “ANSI/ASCE/EWRI 6
3、6-17.” | Includes bibliographical references and index.Identiers: LCCN 2017015047 | ISBN 9780784414224 (soft cover : alk. paper) | ISBN9780784449407 (PDF)Subjects: LCSH: Soil stabilizationStandards. | Building sitesUnited StatesStandards. |Soil erosionPreventionStandards. | Sediment controlStandards
4、. | Soil conservationStandards.Classication: LCC TA749 .A44 2017 | DDC 624.1/51363dc23 LC record available athttps:/lccn.loc.gov/2017015047Published by American Society of Civil Engineers1801 Alexander Bell DriveReston, Virginia, 20191-4382www.asce.org/bookstore | ascelibrary.orgThis standard was de
5、veloped by a consensus standards development process that has beenaccredited by the American National Standards Institute (ANSI). Accreditation by ANSI, avoluntary accreditation body representing public and private sector standards developmentorganizations in the United States and abroad, signies th
6、at the standards developmentprocess used by ASCE has met the ANSI requirements for openness, balance, consensus, anddue process.While ASCEs process is designed to promote standards that reect a fair and reasonedconsensus among all interested participants, while preserving the public health, safety,
7、andwelfare that is paramount to its mission, it has not made an independent assessment of anddoes not warrant the accuracy, completeness, suitability, or utility of any information,apparatus, product, or process discussed herein. ASCE does not intend, nor shouldanyone interpret, ASCEs standards to r
8、eplace the sound judgment of a competentprofessional, having knowledge and experience in the appropriate eld(s) of practice, norto substitute for the standard of care required of such professionals in interpreting andapplying the contents of this standard.ASCE has no authority to enforce compliance
9、with its standards and does not undertake tocertify products for compliance or to render any professional services to any person or entity.ASCE disclaims any and all liability for any personal injury, property damage, nancial loss,or other damages of any nature whatsoever, including without limitati
10、on any direct, indirect,special, exemplary, or consequential damages, resulting from any persons use of, or relianceon, this standard. Any individual who relies on this standard assumes full responsibility forsuch use.ASCE and American Society of Civil EngineersRegistered in U.S. Patent and Trademar
11、kOfce.Photocopies and permissions. Permission to photocopy or reproduce material from ASCEpublications can be requested by sending an e-mail to permissionsasce.org or by locatinga title in ASCEs Civil Engineering Database (http:/cedb.asce.org) or ASCE Library(http:/ascelibrary.org) and using the “Pe
12、rmissions” link.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.2423222120191817 12
13、345ASCE STANDARDSIn 2014, the Board of Direction approved revisions to the ASCERules for Standards Committees to govern the writing andmaintenance of standards developed by ASCE. All such stan-dards are developed by a consensus standards process managedby the ASCE Codes and Standards Committee (CSC)
14、. Theconsensus process includes balloting by a balanced standardscommittee, and reviewing during a public comment period. Allstandards are updated or reafrmed by the same process. Exten-sions beyond a ve-year period shall require the approval of boththe appropriate Executive Committee and CSC. Reque
15、sts forformal interpretations shall be processed in accordance withSection 7 of ASCE Rules for Standards Committees, which areavailable at www.asce.org. Errata, addenda, supplements, andinterpretations, if any, for this standard can also be found atwww.asce.org.The provisions of this document are wr
16、itten in permissivelanguage and, as such, offer to the user a series of options orinstructions but do not prescribe a specic course of action.Signicant judgment is left to the user of this document.This standard has been prepared in accordance with recog-nized engineering principles and should not b
17、e used without theusers competent knowledge for a given application. The publi-cation of this standard by ASCE is not intended to warrant thatthe information contained therein is suitable for any general orspecic use, and ASCE takes no position respecting the validityof patent rights. The user is ad
18、vised that the determination ofpatent rights or risk of infringement is entirely his or her ownresponsibility.A complete list of currently available standards is available inthe ASCE Library (http:/ascelibrary.org/page/books/s-standards).iiiThis page intentionally left blankCONTENTSPREFACE . ixACKNO
19、WLEDGMENTS . xi1 INTRODUCTION AND SCOPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.1 Appropriate Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 BACKGROUND . . . . . . . . . . . . . . . . . . . . .
20、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32.1 Erosion and Sediment Problems Associated with Construction Activities. . . . . . . . . . . . . . . . . . . 32.2 Environmental Impacts of Sediment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42.2.1 I
21、n-stream and Off-stream Impacts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42.2.2 Specic Environmental Impacts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42.3 Economic Impacts of Sediment . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22、. . . . . . . . . . . . 52.4 Other Potential Nonsediment Pollutants. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52.4.1 Metals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52.4.2 Nutrients . . . . . . . . . . . . . . .
23、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52.4.3 Pesticides. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52.4.4 Spills and Illegal Dumping of Construction Materials . . . . . . . . . . . . . . . . . . . . . . . . 52.4.5 Miscel
24、laneous Wastes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62.5 Economic Advantages of Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62.6 Environmental Advantages of Compliance . . . . . . . . . . . . . . . . . . . . . . .
25、. . . . . . . . . . . . 63 REGULATIONS AND PERMITTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73.1 Model Ordinance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73.2 Federal Regulations . . . . . . . . . . .
26、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73.2.1 NPDES Program (Phases I and II) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73.2.2 Phase II Municipal Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83.3 State a
27、nd Local Regulations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83.3.1 Declaration of Purpose and Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83.3.2 Denitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
28、. . . . . . . . . . . . . 83.3.3 Application Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83.3.4 Permit Requirements and Approval Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83.3.5 Contents of an Erosion and Sediment Control Plan .
29、. . . . . . . . . . . . . . . . . . . . . . . . 83.3.6 Design Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83.3.7 Inspection and Monitoring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83.3.8 Maintenance Requirements .
30、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83.3.9 Enforcement Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83.3.10 Training and Certication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 CO
31、NTROL PROCESSES AND SITE PLANNING CONCEPTS . . . . . . . . . . . . . . . . . . . . . . . . . . . 94.1 Erosion Processes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94.1.1 Raindrop Erosion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
32、. . . . . . . . . . . . . 94.1.2 Sheet Erosion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94.1.3 Rill Erosion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94.1.4 Gully Erosion . . . . . . . . . . . . . . .
33、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94.1.5 Channel Erosion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94.2 Factors Inuencing Erosion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94.2.1 Clima
34、te / Rainfall (R) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104.2.2 Soils and Soil Erodibility (K) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104.2.3 Topography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
35、. . . . . . . . . . . . 104.2.4 Vegetative Cover (C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114.2.5 Conservation Practices (P). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114.3 Sedimentation . . . . . . . . . . . . . . . . .
36、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114.4 Site Planning Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Management Practices for Control of Erosion and Sediment from Construction Activities v4.4.1 Plan the Developmen
37、t to Fit the Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114.4.2 Determine the Limits of Clearing and Grading. . . . . . . . . . . . . . . . . . . . . . . . . . . . 114.4.3 Divide the Site into Natural Drainage Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . .
38、. 114.4.4 Minimize the Area and Duration of Exposure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114.4.5 Apply Perimeter Control Practices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124.4.6 Apply Erosion Control Practices to Prevent Excessive On-Site Damage . . .
39、 . . . . . . . . . . . 124.4.7 Keep Runoff Velocities Low and Retain Runoff On Site . . . . . . . . . . . . . . . . . . . . . . 124.4.8 Stabilize Disturbed Areas Immediately . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124.4.9 Implement a Thorough Maintenance and Follow-Up Program
40、. . . . . . . . . . . . . . . . . . . . 124.4.10 Summary of Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 CONTROL CONCEPTS, PRACTICES, AND STANDARDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135.1 Erosion and Sediment Control Concepts
41、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135.1.1 Erosion Control Practices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135.1.2 Sediment Control Practices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135.1
42、.3 Operation and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135.2 Erosion Control Practices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135.2.1 Site Preparation . . . . . . . . . . . . . . . . . . . . . . . . .
43、. . . . . . . . . . . . . . . . . . . 135.2.1.1 Land Grading/Roughening. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135.2.1.2 Topsoiling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145.2.2 Vegetative Stabilization . . . . . . . . . . . . . .
44、 . . . . . . . . . . . . . . . . . . . . . . . . . . 145.2.3 Blankets and Matting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145.2.4 Road Stabilization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155.2.4.1 Construction
45、Road Stabilization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155.2.4.2 Stabilized Construction Entrances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165.2.4.3 Stabilized Construction Entrances with Wash Racks. . . . . . . . . . . . . . . . . . . 175.3 Sediment Control M
46、easures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175.3.1 Sediment Barriers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175.3.2 Sediment Traps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
47、 . . . . . . . . 215.3.3 Sediment Basins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235.4 Water Conveyance Measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245.4.1 Dikes and Diversions . . . . . . . . . . . . .
48、. . . . . . . . . . . . . . . . . . . . . . . . . . . . 245.4.2 Downdrains and Flumes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255.5 Grass or Lined Waterways . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275.6 Inlet and Ou
49、tlet Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275.6.1 Riprap Inow Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275.6.2 Gabion Inow Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295.6.3 Stone Check Dams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305.6.4 Stone Outlet Structures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305.6.5 Rock Ou
