| NCHRP 14-07 | Interactive Microcomputer Network for Innovative Maintenance Operations | Completed | |
| NCHRP 14-08 | Chip Seal Coats for High-Traffic-Volume Asphalt Concrete Pavements | Completed | |
| NCHRP 14-08A | Chip Seal Coats for High-Traffic-Volume Asphalt Concrete Pavements | Completed | |
| NCHRP 14-09(1) | Effective Maintenance Budget Strategies | Completed | |
| NCHRP 14-09(2) | Incorporation of Maintenance Considerations in Highway Design | Completed | |
| NCHRP 14-09(3) | Maintenance Contracting | Completed | |
| NCHRP 14-09(4) | Role of Highway Maintenance in Integrated Management Systems | Completed | |
| NCHRP 14-09(5) | Impacts of Environmental, Health, and Safety Regulations on Highway Maintenance | Completed | |
| NCHRP 14-09(6) | Professional Development of Maintenance Engineers and Managers | Completed | |
| NCHRP 14-10 | Improvements in Data Acquisition Technology for Maintenance Management Systems | Completed | |
| NCHRP 14-11 | Effective Motivation of Highway Maintenance Personnel | Completed | |
| NCHRP 14-11(2) | Enhancement to Program for Effective Motivation of Highway Maintenance Personnel | Completed | |
| NCHRP 14-12 | Highway Maintenance Quality Assurance | Completed | |
| NCHRP 14-13 | Customer-Driven Benchmarking for Highway Maintenance Activities | Completed | |
| NCHRP 14-14 | Guide for Optimal Timing of Pavement Preventive Maintenance Treatment Applications | Completed | |
| NCHRP 14-15 | Developing a National Database System for Maintenance Actions on Highway Bridges | Completed | |
| NCHRP 14-16 | Guidelines for Vegetation Management | Completed | The final report has been received and provided to AASHTO for ballot. |
| NCHRP 14-17 | Manual for Emulsion-Based Chip Seals for Pavement Preservation | Completed | |
| NCHRP 14-18 | Determining Highway Maintenance Costs | Completed | |
| NCHRP 14-19 | Culvert Rehabilitation to Maximize Service Life While Minimizing Direct Costs and Traffic Disruption | Final | |
| NCHRP 14-20 | Consequences of Delayed Maintenance - Phase I | Completed | |
| NCHRP 14-20A | Consequences of Delayed Maintenance of Highway Assets | Completed | |
| NCHRP 14-21 | Resource Allocation Framework to Meet Highway Asset Preservation Needs | Final | |
| NCHRP 14-22 | Effective Removal of Pavement Markings | Final | Completed. Published as NCHRP Report 759 |
| NCHRP 14-23 | Practical Bridge Preservation Actions and Investment Strategies | Final | A decision was made to discontinue work on the project beyond Phase II. Further research related to bridge preservation actions will be performed under NCHRP Project 14-36. |
| NCHRP 14-24 | Guidance for Communicating the Value of Highway System Maintenance and Preservation | Final | |
| NCHRP 14-25 | Guide for Selecting Level-of-Service Targets for Maintaining and Operating Highway Assets | Completed | |
| NCHRP 14-26 | Culvert and Storm Drain System Inspection Manual | Final | |
| NCHRP 14-27 | A Guide for the Preservation of Highway Tunnel Systems | Final | |
| NCHRP 14-28 | Inspection Guidelines for Bridge Post-Tensioning and Stay Cable Systems Using NDE Methods | Final | |
| NCHRP 14-29 | Assessing, Coding, and Marking of Highway Structures in Emergency Situations | Completed | |
| NCHRP 14-30 | Spot Painting to Extend Highway Bridge Coating Life | Final | |
| NCHRP 14-31 | Developing a Pavement-Maintenance Database System | Completed | |
| NCHRP 14-32 | Proposed Revisions to the AASHTO Movable Bridge Inspection, Evaluation, and Maintenance Manual | Final | |
| NCHRP 14-33 | Pavement Performance Measures that Consider the Contributions of Preservation Treatments | Completed | |
| NCHRP 14-34 | Guide for Performance Measures in Snow and Ice Control Operations | Completed | |
| NCHRP 14-35 | Acceptance Criteria of Complete Joint Penetration Steel Bridge Welds Evaluated Using Enhanced Ultrasonic Methods | Final | |
| NCHRP 14-36 | Proposed AASHTO Guide for Bridge Preservation Actions | Final | Published as NCHRP Research Report 950 |
| NCHRP 14-36(01) | Implementation of Bridge Preservation Actions | Active | Research In Progress |
| NCHRP 14-37 | Guide Specifications for the Construction of Chip Seals and Microsurfacing | Completed | |
| NCHRP 14-38 | Guide for Timing of Asphalt-Surfaced Pavements Preservation | Completed | |
| NCHRP 14-39 | Using Vegetated Compost Blankets to Achieve Highway Runoff Volume and Pollutant Reduction | Final | Published as NCHRP Research Report 1040. |
| NCHRP 14-40 | Transforming Roadside Management and Technology Practices for the Benefit of Safety, Ecology, and Economy | Final | |
| NCHRP 14-41 | Permanent Vegetation Control Treatments for Roadsides | Final | |
| NCHRP 14-42 | Determining the Impact of Connected and Automated Vehicle Technology on State DOT Maintenance Programs | Final | NCHRP Research Report 1084 and NCHRP Research Report 1119 are now available. |
| NCHRP 14-43 | Construction Guide Specifications for Cold Central Plant Recycling and Cold In-Place Recycling | Final | Report Published as NCHRP Web-Only-Document 363 |
| NCHRP 14-44 | Guide Specifications for the Construction of Slurry Seals, Scrub Seals, and Tack Coats | Completed | |
| NCHRP 14-45 | Guidelines for Response Planning, Assessment, and Rapid Restoration of Service of Bridges in Extreme Events | Completed | |
| NCHRP 14-46 | Guidelines for the Maintenance and Construction of Rumble Strips | Active | |
| NCHRP 14-47 | Tools and Technology for Roadside Landscape Asset Management | Active | Research in progress. |
| NCHRP 14-48 | Guidance for the Construction of Sand Seals and Ultra-thin Bonded Wearing Courses | Completed | |