ANSI ASCE 45-16 46-16 AND 47-16-2017 Standard Guidelines for the Design Installation and Operation and Maintenance of Urban Stormwater Systems.pdf

1、ASCE STANDARDANSI/ASCE/EWRI45-1646-1647-16Standard Guidelines for the Design, Installation, and Operation and Maintenance of Urban Stormwater SystemsTHREE COMPLETE STANDARDSStandard Guidelines for the Design of Urban Stormwater Systems ANSI/ASCE/EWRI 45-16Standard Guidelines for the Installation of

2、Urban Stormwater Systems ANSI/ASCE/EWRI 46-16Standard Guidelines for the Operation and Maintenance of Urban Stormwater Systems ANSI/ASCE/EWRI 47-16ASCE STANDARD ANSI/ASCE/EWRI45-1646-1647-16Standard Guidelines for theDesign, Installation, andOperation and Maintenanceof Urban Stormwater SystemsThree

3、Complete StandardsStandard Guidelines for the Designof Urban Stormwater SystemsANSI/ASCE/EWRI 45-16Standard Guidelines for the Installationof Urban Stormwater SystemsANSI/ASCE/EWRI 46-16Standard Guidelines for the Operation andMaintenance of Urban Stormwater SystemsANSI/ASCE/EWRI 47-16PUBLISHED BY T

4、HE AMERICAN SOCIETY OF CIVIL ENGINEERSLibrary of Congress Cataloging-in-Publication DataNames: American Society of Civil Engineers, editor.Title: ASCE standard, ANSI/ASCE/EWRI, 45-16, 46-16, 47-16 : standard guidelines for thedesign of urban stormwater systems.Other titles: Standard guidelines for t

5、he design of urban stormwater systemsDescription: Reston, Virginia : American Society of Civil Engineers, 2017 | Includesbibliographical references and index.Identiers: LCCN 2016058532 | ISBN 9780784413319 (soft cover : alk. paper) | ISBN9780784480199 (PDF)Subjects: LCSH: Storm sewersStandardsUnited

6、 States.Classication: LCC TD665 .A79 2017 | DDC 628/.212021873dc23 LC record available athttps:/lccn.loc.gov/2016058532Published by American Society of Civil Engineers1801 Alexander Bell DriveReston, Virginia, 20191-4382www.asce.org/bookstore | ascelibrary.orgThis standard was developed by a consens

7、us 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 that the standards dev

8、elopmentprocess 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, andwelfare that is p

9、aramount to its mission, it has not made an independent assessment of and doesnot warrant the accuracy, completeness, suitability, or utility of any information, apparatus,product, or process discussed herein. ASCE does not intend, nor should anyone interpret,ASCEs standards toreplace thesoundjudgme

10、nt of acompetent professional, havingknowledgeand experience in the appropriate eld(s) of practice, nor to substitute for the standard of carerequired of such professionals in interpreting and applying the contents of this standard.ASCE has no authority to enforce compliance with its standards and d

11、oes 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 limitation any direct, indirect,

12、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 TrademarkOfce.Photocopies and pe

13、rmissions. 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 “Permissions” link.Errata:

14、Errata, if any, can be found at https:/doi.org/10.1061/9780784413319.Copyright 2017 by the American Society of Civil Engineers.All Rights Reserved.ISBN 978-0-7844-1331-9 (soft cover)ISBN 978-0-7844-8019-9 (PDF)Manufactured in the United States of America.24 23 22 21 20 19 18 17 1 2 3 4 5ASCE STANDAR

15、DSIn 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). Theconsensus

16、process includes balloting by a balanced standardscommittee, and reviewing during a public comment period. Allstandards are updated or reafrmed by the same process everyve to ten years. Requests for formal interpretations shall beprocessed in accordance with Section 7 of ASCE Rules forStandards Comm

17、ittees which are available at www.asce.org.Errata, addenda, supplements, and interpretations, if any, forthis standard can also be found at www.asce.org.This standard has been prepared in accordance with recog-nized engineering principles and should not be used without theusers competent knowledge f

18、or 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 advised that the determination ofpatent rights

19、or risk of infringement is entirely their ownresponsibility.A complete list of currently available standards is available inthe ASCE Library (http:/ascelibrary.org/page/books/s-standards).iiiThis page intentionally left blankCONTENTSSTANDARD GUIDELINES FOR THE DESIGN OF URBAN STORMWATER SYSTEMS,ANSI

20、/ASCE/EWRI 45-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1STANDARD GUIDELINES FOR THE INSTALLATION OF URBAN STORMWATER SYSTEMS,ANSI/ASCE/EWRI 46-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

21、 . . . . . 61STANDARD GUIDELINES FOR THE OPERATION AND MAINTENANCE OF URBAN STORMWATER SYSTEMS,ANSI/ASCE/EWRI 47-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85INDEX . 99Standard Guidelines for the Design, Installation, and Operation and M

22、aintenance of Urban Stormwater Systems vThis page intentionally left blankASCE STANDARD ANSI/ASCE/EWRI45-16Standard Guidelines for theDesign of Urban StormwaterSystemsThis page intentionally left blankCONTENTSPREFACE . viiACKNOWLEDGMENTS . ix1 SCOPE 11.1 Applicable Standards . . . . . . . . . . . .

23、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32.1 General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

24、 . . . . . 32.2 Terms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 SITE ANALYSIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53.1 Basic Requirements . . . . . . . . . . . .

25、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53.1.1 Topography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53.1.2 Geography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53.1.3 Wa

26、ter Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53.1.4 Geology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53.1.5 Water Source. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

27、 . . . . . . . . . . . 53.1.6 Soil Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53.1.6.1 Soil Classication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53.1.6.2 Hydraulic Conductivity and Permeability. . . . . . . .

28、 . . . . . . . . . . . . . . . . . 53.1.6.3 Strata and Layers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63.1.6.4 Soil/Water Chemistry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63.1.6.5 Temperature . . . . . . . . . . . . . . . . . . . . . .

29、 . . . . . . . . . . . . . . . . . . 63.1.6.6 Soil Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63.1.7 Environmental Factors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63.1.7.1 Water Quality . . . . . . . . . . . . . .

30、 . . . . . . . . . . . . . . . . . . . . . . . . 63.1.7.2 Flooding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63.1.7.3 Wetlands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63.1.7.4 Principal or Primary Aquifers . . . .

31、 . . . . . . . . . . . . . . . . . . . . . . . . . . . 63.1.7.5 Hydrology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63.1.8 Physical Constraints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63.1.9 Land Use. . . . . . . . .

32、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63.1.10 Zoning Regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63.1.11 Other Governmental Regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

33、4 HYDROLOGY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74.1 Quantity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74.1.1 Design Points and Return Periods. . . . . . . . . . .

34、 . . . . . . . . . . . . . . . . . . . . . . . . 74.1.2 Runoff Determination Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74.1.2.1 Statistical Methods. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74.1.2.2 Regional Methods . . . . . . . .

35、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74.1.2.3 Transfer Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74.1.2.4 Rainfall Runoff Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84.1.3 Design Rainfall . . . . . . . . . .

36、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84.1.4 Rainfall Abstraction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84.1.5 Runoff Hydrographs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84.1.6 Rat

37、ional Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84.1.6.1 Assumptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84.1.6.2 Runoff Coefcient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

38、 84.1.7 Time of Concentration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94.1.7.1 Sheet Flow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94.1.7.2 Shallow Concentrated Flow . . . . . . . . . . . . . . . . . . . . . . . . . .

39、 . . . . . 104.1.7.3 Open Channel Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Standard Guidelines for the Design of Urban Stormwater Systems iii4.1.8 Hydrograph . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104.1.9 Cal

40、ibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104.1.10 Historical Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114.2 Water Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

41、 . . . . . . . . . . . . . . . . . . 114.2.1 Pollutant Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114.2.2 Water Quality Impacts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114.3 Rainfall Runoff Computer Models .

42、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 NONSTRUCTURAL CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135.1 Floodplains. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

43、 . . . 135.2 Wetlands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135.3 Forests and Riparian Buffers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135.4 Stream Bank Assessment . . . . . . . . . . . .

44、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135.5 Site Planning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136 SYSTEM CONFIGURATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

45、 156.1 Collection System Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156.1.1 Pipes or Conduits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156.1.2 Inlet Structures. . . . . . . . . . . . . . . . . . . . . .

46、 . . . . . . . . . . . . . . . . . . . . . . 156.1.3 Drainage Ways. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156.1.4 Streets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156.1.5 Flow Controls . . . .

47、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156.1.6 Retention/Detention Facilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156.1.6.1 Wetlands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

48、56.1.6.2 Impoundments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156.2 Special Structures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166.2.1 Pumping Stations . . . . . . . . . . . . . . . . . . . . . . . . . . .

49、 . . . . . . . . . . . . . . . 166.2.2 Vaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166.2.3 Manholes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166.2.4 Cleanouts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166.2.5 Equipment Access Shafts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166.3 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .