State departments of transportation are facing increasingly stringent requirements for treating not only the quality but also the quantity of stormwater runoff.
The TRB National Cooperative Highway Research Program's NCHRP Research Report 1011: Watershed Approach to Mitigating Hydrologic Impacts of Transportation Projects: Guide describes a watershed-level approach to identify strategies and techniques that can mitigate hydrologic impacts of transportation projects.
Supplemental to the report are NCHRP Web-Only Document 333: Watershed Approach to Mitigating Hydrologic Impacts of Transportation Projects: Conduct of Research Report, a spreadsheet tool for applying the approach, a presentation summarizing the project, and a memorandum on implementing the research.
National Academies of Sciences, Engineering, and Medicine. 2022. Watershed Approach to Mitigating Hydrologic Impacts of Transportation Projects: Guide. Washington, DC: The National Academies Press. https://doi.org/10.17226/26762.
Chapters | skim | |
---|---|---|
Front Matter | i-viii | |
Chapter 1 - Introduction | 1-4 | |
Chapter 2 - Watershed Mitigation Decision Framework | 5-11 | |
Chapter 3 - Screening Analyses | 12-24 | |
Chapter 4 - Detailed Analyses (Step 11) | 25-29 | |
Chapter 5 - Piney Creek Example | 30-53 | |
Chapter 6 - Summary | 54-56 | |
References | 57-58 | |
Acronyms and Abbreviations | 59-60 | |
Glossary | 61-62 | |
Appendix A - Mitigation Tables | 63-66 | |
Appendix B - Generic Causal Chains | 67-71 | |
Appendix C - Site-Specific Factors Related to Co-Benefits | 72-82 |
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