Developing a Guide for On-Bridge Stormwater Treatment Practices (2024)
Chapter: Front Matter
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NCHRP Web-Only Document 401 |
Developing a Guide for
On-Bridge Stormwater
Treatment Practices
Aaron Poresky
Ariel Mosbrucker
Jack Lisin
Maral Razmand
Geosyntec Consultants, Inc.
Portland, OR
Michael Barrett
Lynn Katz
University of Texas
Austin, TX
James Lenhart
Stormwater Northwest
Portland, OR
Conduct of Research Report for NCHRP Project 25-61
Submitted March 2024
NCHRP Web-Only Document 401
Developing a Guide for On-Bridge Stormwater Treatment Practices
© 2024 by the National Academy of Sciences. National Academies of Sciences, Engineering, and Medicine and the graphical logo are trademarks of the National Academy of Sciences. All rights reserved.
NATIONAL COOPERATIVE HIGHWAY RESEARCH PROGRAM
Systematic, well-designed, and implementable research is the most effective way to solve many problems facing state departments of transportation (DOTs) administrators and engineers. Often, highway problems are of local or regional interest and can best be studied by state DOTs individually or in cooperation with their state universities and others. However, the accelerating growth of highway transportation results in increasingly complex problems of wide interest to highway authorities. These problems are best studied through a coordinated program of cooperative research.
Recognizing this need, the leadership of the American Association of State Highway and Transportation Officials (AASHTO) in 1962 initiated an objective national highway research program using modern scientific techniques—the National Cooperative Highway Research Program (NCHRP). NCHRP is supported on a continuing basis by funds from participating member states of AASHTO and receives the full cooperation and support of the Federal Highway Administration (FHWA), United States Department of Transportation, under Agreement No. 693JJ31950003.
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Cooperative Research Programs (CRP) grants permission to reproduce material in this publication for classroom and not-for-profit purposes. Permission is given with the understanding that none of the material will be used to imply TRB, AASHTO, APTA, FAA, FHWA, FTA, GHSA, or NHTSA endorsement of a particular product, method, or practice. It is expected that those reproducing the material in this document for educational and not-for-profit uses will give appropriate acknowledgment of the source of any reprinted or reproduced material. For other uses of the material, request permission from CRP.
Digital Object Identifier: 10.17226/27905
Epub ISBN: 978-0-309-72431-9
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COOPERATIVE RESEARCH PROGRAMS
CRP STAFF FOR NCHRP WEB-ONLY DOCUMENT 401
Monique R. Evans, Director, Cooperative Research Programs
Waseem Dekelbab, Deputy Director, Cooperative Research Programs, and Manager, National Cooperative Highway Research Program
David Jared, Senior Program Officer
Mazen Alsharif, Senior Program Assistant
Natalie Barnes, Director of Publications
Heather DiAngelis, Associate Director of Publications
Jennifer Correro, Assistant Editor
NCHRP PROJECT 25-61 PANEL
Field of Transportation Planning—Area of Human and Natural Environment
G. Scott McGowen, Michael Baker International, Inc., Rancho Cordova, CA (Chair)
Nicole A. Bartelt, Minnesota Department of Transportation, Oakdale, MN
Brian K. Currier, California State University, Sacramento, CA
Lewis N. Lloyd, Virginia Department of Transportation, Charlottesville, VA
Drew Andrew Martin, Georgia Department of Transportation, Atlanta, GA
Alex Nguyen, Washington State Department of Transportation, Seattle, WA
Alisa Diaz Richardson, Rhode Island Department of Transportation, Warwick, RI
Susan Jones, FHWA Liaison
AUTHOR ACKNOWLEDGMENTS
This report was developed under NCHRP Project 25-61, “Development of On-Bridge Stormwater Treatment Practices” by Geosyntec Consultants, with assistance from the University of Texas–Austin, Gresham Smith, Terraphase Engineering, and Stormwater Northwest. The co-principal investigators for the project were Aaron Poresky of Geosyntec Consultants and Dr. Michael Barrett of the University of Texas–Austin. The authors would like to thank Joel Prock and Myles Gray of Geosyntec Consultants, Tom Dietrich of Gresham Smith, Eric Strecker of Terraphase Engineering, and the team from SWI Group for their contributions to the project.
CONTENTS
Prototype On-Bridge BMP Recommendations
Guide for Design Development and Decision-Making
Scope of Research Efforts and Distinction from Previous Projects
Purpose of Report and Relationship to Guide
Task 1a Approach: Stormwater Treatment Processes and Options
Task 1b Approach: Overall Stormwater Treatment Design
Task 2 Approach: Candidate Media Blend, Prototype BMP, and Research Plan (Interim Report 1)
Task 3 Approach: Laboratory Testing and Supplemental Research
Laboratory Research Priorities and Objectives for Task 3
Quality Assurance Project Plan Development
Permeability and Clogging Study
Water Quality Treatment Column Study
Task 5 Approach: Guide and Case Studies
CHAPTER 3 FINDINGS AND APPLICATIONS
Task 1a Findings: Stormwater Treatment Processes and Options
Performance Studies of Candidate Blends
Interim Recommendations for Further Evaluation
Task 1b Findings: Overall Stormwater Treatment Design
Design Case Studies and Alternatives Evaluation
Interim Findings and Recommendations from Task 1b
Task 2 Findings: Candidate Media Blend, Prototype BMP, and Research Plan (Interim Report 1)
Recommended Candidate Media for Testing
Development of Candidate Prototype BMP Design
Discussion of Major Design Decisions
Prototype Treatment System Designs
Key Data Gaps and Research Priorities
Task 3 Findings: Laboratory Testing and Supplemental Research
Permeability and Clogging Results
Summary of Water Quality Study Results
Task 5 Approach: Guide and Case Studies
CHAPTER 4 CONCLUSIONS AND SUGGESTED RESEARCH
On-Bridge Stormwater BMP Development
Design Development and Decision-Making Framework
Assessment of Key Feasibility Factors
APPENDIX A: TASK 1A MEMORANDUM - LITUREATURE REVIEW OF STORMWATER TREATMENT PROCESSES AND OPTIONS
APPENDIX B: TASK 1B MEMORANDUM - DEVELOPMENT AND ASSESSMENT OF ON-BRIDGE STORMWATER TREATMENT BMPS
APPENDIX C: TASK 3 LABORATORY REPORT 1 – PERMEABILITY AND CLOGGING STUDY
APPENDIX D: TASK 3 LABORATORY REPORT 2 – WATER QUALITY COLUMN STUDY
NCHR Web-Only Document 401 contains the conduct of research report for NCHRP Project 25-61 and accompanies NCHRP Research Report 1117: On-Bridge Stormwater Treatment Practices: A Guide. Readers can read or purchase NCHRP Research Report 1117 on the National Academies Press website (nap.nationalacademies.org).
