NCHRP Project 25-25 supported improvements to analytical methods, decision support tools, procedures, and techniques employed by practitioners to support statewide and metropolitan transportation planning, programming, and development. It was discontinued as of FY2020, and the allocated funding is now available to all committees under NCHRP. The Tasks below serve as an archive of what was achieved through NCHRP 25-25.
| Task 120 | Use of the State Department of Transportation Portal to the International Stormwater BMP Database | Project Description |
| Task 119 | Enhancing the International Stormwater BMP Database to Serve as a Highway Specific BMP Database | Final Product |
| Task 118 | Context-Sensitive Design Options for Workhorse Bridges in Rural Historic Districts | Project Description |
| Task 117 | Valuing Wildlife Crossing Enhancements for Mitigation Credits | Project Description and Final Report |
| Task 116 | National Survey of State DOT Recommendations for Additional Section 106 Program Comments or Exemptions | Project Description and final report |
| Task 115 | Estimates of Emissions Reductions from Future Fleet Changes for Use in Air Quality Models | Project Description and Final Report |
| Task 114 | Integrating Tribal Knowledge into Processes to Identify, Evaluate, and Record Cultural Resources | Project Description |
| Task 113 | Highway Passages for Small Terrestrial Wildlife – Summary and Repository of Design Examples | Completed Research: Summary report, Slides, Design Examples, Case Studies, Design Considerations, Literature Review |
| Task 112 | Enhancing the International Stormwater BMP Database to Serve as a Highway Specific BMP Database | reprogrammed to NCHRP 25-25 Task 119 and 120 |
| Task 111 | Environmental Management System Perspectives For State DOTs | Final Report, Information Array, Tutorial Recorded Presentation, Presentation Slides |
| Task 110 | National Synthesis of Successful Strategies for Managing Post-World War II Resources in Historic Property Identification Surveys | Project Description, Final Report, Presentation, Slides |
| Task 109 | Successful Practices for Environmental Commitments in Public/Private Partnerships (P-3) and Design-Build (D-B) Contracts | Final Report |
| Task 108 | Creating Lookup Tables to Streamline the Determination of Emission Reductions for CMAQ Projects | Project Page, Toolkit and User Guide, Final Report |
| Task 107 | Synthesis of Best Practices for the Development and Implementation of Section 106 Delegation Programmatic Agreements | Quick Reference Guide, Final Report, PowerPoint |
| Task 106 | Highway Noise & Historic Properties: A National Review of Effects & Mitigation Practices | Final Report, PowerPoint |
| Task 105 | A Guidebook for Communications between Transportation and Public Health Communities | Project Description |
| Task 104 | Streamlining Carbon Monoxide Project-Level Air Quality Analyses with Programmatic Agreements | Project Description |
| Task 103 | Research and Report on the Administration of Categorical Exclusions by State Departments of Transportation (DOTs) under NEPA | Final Report |
| Task 102 | Artificial Bat Roost Mitigation Designs and Standardized Monitoring Criteria | Final Report, Best Management Practices Manual, Presentation Slides |
| Task 101 | Stormwater Monitoring Program Goals, Objectives and Protocols for State Departments of Transportation | Project Description |
| Task 100 | Compilation of Existing Data on Northern Long-Eared and Other Cave-Dwelling Bat Habitat and the Roadside Environment | Project Description |
| Task 99 | Lessons Learned from State DOT NEPA Assumption | Project Description, Final Report |
| Task 98 | Practical Guide for Developing Effective Scopes of Work for the Geophysical Investigation of Cemeteries | Project Description |
| Task 97 | Historic Roads: A Synthesis of Identification and Evaluation Practices | Project Description |
| Task 96 | Quick Reference Guide for Traffic Modelers for Generating Traffic and Activity Data for Project-Level Air Quality Analyses | Project Description |
| Task 95 | SCOE Strategic Plan and Research Plan for SCOE Areas of Interest | Project Description |
| Task 94 | Integrating Climate Change and Extreme Weather Into Transportation Asset Management Plans | Final Report |
| Task 93 | Long-Term Construction and Maintenance Cost Comparison for Road Stream Crossing Hydraulic Design vs. Bankfull Width Design | Project Description |
| Task 92 | Transferability of Post-Construction Stormwater Quality BMP Effectiveness Studies | Project Description |
| Task 91 | Synthesis of Transportation Exclusions to Section 106 Review | Project Description |
| Task 90 | Application of Geographic Information Systems (GIS) to Streamline the Identification of Historic Properties of Federally Funded Transportation Projects | Final Report, Power Point |
| Task 91 | Synthesis of Transportation Exclusions to Section 106 Review | Project Description |
| Task 89 | Establishing Representative Background Concentrations for Quantitative Hot-spot Analyses for Particulate Matter | Final Report, Case Studies, Power Point |
| Task 88 | Giving Away the Bridge: A National Synthesis of on Transferring Ownership of Historic Bridges | Final Report, Power Point |
| Task 87 | Coordination of Section 106 and Long Range Transportation Planning | Final Report, Power Point |
| Task 86 | Toxicological Effects of Chloride Based Deicers in the Natural Environment | Final Report |
| Task 85 | Nutrient (Nitrogen/Phosphorous) Management and Source Control | Final Report, Power Point |
| Tasl 84 | Development of Construction Guidelines for Wildlife Fencing and Associated Escape and Lateral Access Control Measures | Project Description |
| Task 83 | Current Practice of Post-Construction Structural Stormwater Control | Project Description |
| Task 82 | Permeable Shoulders | Project Description |
| Task 81 | Federal Compliance for Projects Utilizing Alternative Funding Strategies | Project Description |
| Task 80 | Potential Use of Social Media Impact in the NEPA Process | Project Description |
| Task 79 | Successful Practices for Effective Tribal Consultation | Project Description |
| Task 78 | Programmatic Agreements for Project-Level Air Quality Analyses Using MOVES, CAL3QHC/R and AERMOD | Project Description, Final Report, Appendix B: Programmatic Agreement Template, Appendix C, Technical Support Document Template, and Data Files |
| Task 77 | Strategic Options of Inventorying and Updating Environmental Guidance and Links | Final Report, Presentation |
| Task 76 | Synthesis of Climate Change and Transportation Research Efforts at State DOTs, State Universities, and the Federal Level | Final Report |
| Task 75 | Nationwide Evaluation of Transfer of Compensatory Wetland Creation Sites for Transportation Projects to Private Conservation Organizations or Government Conservation Agencies | Final Report |
| Task 74 | Meeting the New EPA Effluent Limitations Guideline for Construction Site Discharge Turbidity: Effectiveness of Different Turbidity Control Systems and Monitoring Methods | Final Report |
| Task 73 | Improved Environmental Performance of Highway Maintenance | Final Report and Appendices |
| Task 72 | Current Practices to Address Construction Vibration and Potential Effects to Historic Buildings Adjacent to Transportation Projects | Final Report |
| Task 71 | Templates for Project-Level Analyses Using MOVES and AERMOD | Final Report and Draft Templates |
| Task 70 | Assessment of Quantitative Mobile Source Air Toxics in Environmental Documents | Final Report |
| Task 69 | Identification of Tools and Techniques to Define Community Context as Part of the Transportation Project Planning and Development Process | Final Report and Community Context Searchable Database |
| Task 68 | Implementing Measures to Reduce Highway Impacts on Habitat Fragmentation | Final Report and Appendices |
| Task 67 | Optimizing Conservation and Improving Mitigation Cost/Benefit | Final Report |
| Task 66 | Best Practices and Lessons Learned on the Preservation and Rehabilitation of Historic Bridges | Final Report |
| Task 65 | Synthesis of Greenhouse Gas Emission Inventory Methodologies for State Transportation Departments | Final Report |
| Task 64 | Feasibility Study of Using Solar or Wind Power for Transportation Infrastructure | Final Report and accompanying appendices and spreadsheets. |
| Task 63 | Transportation Corridor Environmental Management Framework | Final Report |
| Task 62 | Improving the Effectiveness of Outreach to Traditional and Non-Traditional Groups by Integrating the Expertise of Existing and Emerging Citizen Coalitions into Transportation Analysis and Decision Making | Final Report |
| Task 61 | Best Practices for Establishing and Maintaining Statewide Cultural Resource Databases at State DOTs | Final Report and the accompanying presentation |
| Task 60 | Increased Use of Environmentally Preferable, Non-Toxic Products to Reduce Costs,Liabilities, and Pollution at DOT Offices, Maintenance Facilities and Rest Stops | Final Report and the accompanying State Department of Transportation Environmentally Preferable Purchasing Guide |
| Task 59 | Evaluate the Interactions Between Transportation-Related Particulate Matter, Ozone, Air Toxics, Climate Change, and Other Air Pollutant Control Strategie | Final Report |
| Task 58 | Methods to Address Greenhouse Gas Emissions from Transportation Construction/Maintenance/Operations Activities | Final Report and the Greenhouse Gas Calculator for State Departments of Transportation (GreenDOT) spreadsheet-based tool (.xls) |
| Task 57 | Integrated State and Local Government Policy Approaches to Transportation and Climate (This project was executed as part of NCHRP 08-36, Task 94, Integrated State and Local Government Policy Approaches to Transportation and Climate) | Final Report |
| Task 56 | Cost and Benefit of Transportation Specific MS4 and Construction Permitting | Final Report |
| Task 55 | Design, Organize and Implement a Training Program for Mainstreaming Environmental Stewardship and Enhancement Activities into Planning and Project Development | Final Report Brochure Power Point Presentation |
| Task 54 | Evaluate Colorado’s Area-wide Cumulative Effects Assessment (ACEA) Methodology as a Mechanism for Cumulative Impacts Analysis of Regional Transportation Plans | Final Report PowerPoint Presentation |
| Task 53 | Stormwater Treatment with Vegetated Buffer | Final Report Power Point Presentation |
| Task 52 | Informational Requirements for Jurisdictional Determinations to be Issued by the Army Corps of Engineers (Corps) Under the Clean Water Act (CWA) | Final Report |
| Task 51 | Asset Management of Environmental Mitigation Features | Final Report |
| Task 50 | Finding the Carrot Instead of the Stick – Incentive-based Approaches for Environmental Compliance | Final Report |
| Task 49 | Effective Practices for Considering Historic Preservation in Transportation Planning and Early Project Development | Final Report |
| Task 48 | Compendium of Environmental Fieldwork Technologies | Final Report |
| Task 47 | Compendium of Best Practices for Incorporating Environmental Commitments into Transportation Project Construction Contract Documents | Final Report |
| Task 46 | Compendium of Best Practices for Environmental Compliance and Stewardship at Transportation Maintenance Facilities | Final Report |
| Task 45 | Transportation Program Responses to Greenhouse Gas (GHG) Reduction Initiatives and Energy Reduction Programs | Project Description |
| Task 44 | Development and Implementation of a Transportation and Climate Change Clearinghouse | Project Page |
| Task 43 | Guidance on Legal Sufficiency Criteria for Adequate Cumulative and Secondary Impacts Analysis in EIS Documents | Final Report |
| Task 42 | Determine Alternative Calculations for Fine Particulate Emission Factors Other Than AP-42 Applicable to Calculate Re-entrained Dust on Transportation Projects | Final Report User Guide |
| Task 41 | Implementation of Community & Cultural Resource Commitments | Final Report |
| Task 40 | New Noise Barrier Products & Noise Barrier Approval Research & Guidelines | Final Report Appendix A |
| Task 39 | Improving Project Environmental Cost Estimates | Final Report Final Guidance |
| Task 38 | Guide to Use of Tier I Environmental Impact Statements for Transportation Projects | Final Report |
| Task 37 | Effective Organizational Structures and Management Practices for Achieving Environmental Stewardship in Transportation Agencies | Final Report |
| Task 36 | Recurring Community Impacts | Final Report |
| Task 35 | Water Quality Analyses for NEPA Documents: Selecting Appropriate Methodologies | Final Report |
| Task 34 | Streamlined Carbon Monoxide Hot Spot Screening / Modeling Tool | cancelled |
| Task 33 | National Register of Historic Places Eligibility | Final Report |
| Task 32 | Linking Environmental Resource and Transportation Planning–The Current State of Practice | Final Report Appendix E Appendix F |
| Task 31 | Cost Effective Tools for Achieving PM 2.5 Transportation Air Quality Conformity | cancelled |
| Task 30 | Section 404 Permitting and Roadside Ditches as Jurisdictional Waters | cancelled |
| Task 29 | Best Practices Library from the Environmental Stewardship Practices in Construction and Maintenance Compendium | Final Report |
| Task 28 | Reevaluations of NEPA documents | Final Report |
| Task 27 | Project Management and NEPA | Final Report Appendix |
| Task 26 | Integration of Charrette Processes into Project Planning | cancelled |
| Task 25 | Modification and Amendment of Environmental Permits on Design-Build Projects | Final Report |
| Task 24 | Climate Change and U.S. Transportation | |
| Task 23 | Environmental Performance Measurements Related to Transportation Project Planning, Design, Construction, Maintenance and Operations | Final Report |
| Task 22 | Land Use Forecasting for Indirect Impacts Analysis | Final Report |
| Task 21 | Assessment of Geophysical Remote Sensing Opportunities at State Departments of Transportation for Incorporation into Archaeological Investigations | Final Report |
| Task 20 | The Role of State DOTs in Support of Transit Oriented Development (TOD) | Final Report |
| Task 19 | Historic Bridge Rehabilitation / Replacement Decision Making | Final Report |
| Task 18 | Recommended Approaches to Communicating Air Toxics Issues and Transportation Project-Related Analyses in NEPA Documents | Final Report |
| Task 17 | Assessment of Greenhouse Gas Analysis Techniques for Transportation Projects | Final Report |
| Task 16 | State Transportation Agency Strategies to Address NPDES Phase II Requirements | Final Report Appendix |
| Task 15 | Historic Bridges | Final Report |
| Task 14 | A Summary of Existing Research on Dam Removal Projects | Final Report |
| Task 13 | Agency Use and Approach to FHWA Approved Programmatic Agreements | Final Report |
| Task 12 | Design-Build Environmental Compliance Process and Level of Detail Required | Final Report |
| Task 11 | Secondary/Indirect and Cumulative Effects Analysis Compatible Approach Flow Chart, ICI Matrix | Final Report |
| Task 10 | Alternative Mitigation Strategies/Early Mitigation: Streamlining and Achieving Net Benefits for the Natural Environment | Final Report |
| Task 9 | Use of Existing Data in Decision Making | cancelled |
| Task 8 | Developing Performance Data Collection Protocol for Stream Restoration | Final Report |
| Task 7 | Evaluation of Mobile Models: MOBILE 6.1, MOBILE 6.2 and MOBILE6/CNG | Final Report |
| Task 6 | Preparing State DOTs for Implementation of the 8-hour Ozone and PM 2.5 Standards | Project Description |
| Task 5 | Assessing the Current State of the NEPA Environmental Review Process | Final Report |
| Task 4 | Environmental Stewardship Best Practices for Road Maintenance and Construction | Final Report |
| Task 3 | Assessment and Mitigation Strategies for Land Development Impacts of Transportation Improvements | Final Report |
| Task 2 | Transportation Impacts and “Smart Growth” Initiatives | Final Report |
| Task 1 | Synthesis on Data Needs for EA and EIS Documentation | Final Report |