Low-Cost Rural Surface Alternatives Phase III: Demonstration Project

Low-Cost Rural Surface Alternatives Phase IV: Frost Depth Monitoring and Prediction

Effectiveness of Geotextiles/Geogrids in Roadway Construction; Determine a Granular Equivalent (GE) Factor

Improving the Foundation Layers for Concrete Pavements

Development of Granular Roads Asset Management System

Performance-Based Evaluation of Cost-Effective Aggregate Options for Granular Roadways

NCHRP 24-46: Development of an Implementation Manual for Geotechnical Asset Management for Transportation Agencies

SHRP2 (R02) – GeoTechTools Deployment Support

GeoTechTools Platform Upgrade

Stream-Channel and Watershed Delineations and Basin-Characteristic Measurements using Lidar Elevation Data for Small Drainage Basins within the Des Moines Lobe Landform Region in Iowa

Performance Monitoring of Boone County Expo Pavement Sections, (Continuation – Phase III)

Feasibility of Granular Road and Shoulder Recycling

Evaluation of the Buchanan County IBRD Bridge on Victor Avenue over Prairie Creek

Technology Transfer Intelligent Compaction Consortium

Toward Autonomous and Robotic Infrastructure Construction: A Workshop and Field Studies of Productivity, Quality, and Safety Impacts

Embankment Quality and Assessment of Moisture Control Implementation

Cement Stabilization of Embankment Materials

Use of Automated Machine Guidance (AMG) within the Transportation Industry

Quantifying Road Roughness from Terrestrial Laser Scanning

Low-Cost Rural Surface Alternatives: Demonstration Project

Permeability Performance and Lateral Load for Granular Backfill behind Abutments

SHRP2 Geotechnical Solutions for Soil Improvement, Rapid Embankment Construction, and Stabilization of the Pavement Working Platform

Optimizing Pavement Base, Subbase and Subgrade Layers for Cost and Performance on Local Roads

Boone County Expo Research Phase I – Granular Road Compaction and Stabilization

Low-Cost Rural Surface Alternatives

Pilot Construction Project for Granular Shoulder Stabilization

Western Iowa Missouri River Flooding – Geo-Infrastructure Damage Assessment, Repair, and Mitigation Strategies

Performance Assessment of Lime and Fly Ash Chemically Treated Subgrade

Compaction “Roadeo” Field Demonstration: Roller-Integrated Compaction Monitoring and Subgrade Geosynthetic Reinforcement

Modified Sheet Pile Abutments for Low Volume Bridges (TR-568)

Geosynthetic Reinforced Soil for Low Volume Bridge Abutments

Accelerated Implementation of Intelligent Compaction Technology for Embankment Subgrade Soils, Aggregate Base, and Asphalt Pavement Materials

Iowa DOT Roller Integrated Compaction Monitoring Research and Implementation

Stabilization Procedures to Mitigate Edge Rutting for Granular Shoulders, Phase II (TR-591)

Identification and Evaluation of Pavement-Bridge Interface Ride Quality Improvement and Corrective Strategies

Earthwork Volumetric Calculations and Characterization of Additional CFED Soils – CFED Phase IV

Iowa DOT Intelligent Compaction Research and Implementation: Phases I and II

Intelligent Soil Compaction Systems

In-Situ Compaction Measurements for Geosynthetic Stabilized Subbase: Weirton, West Virgina

Rapid, Self-Contained In-Situ Permeameter for Field QA/QC of Pavement Base/Subbase Materials

Optimization and Management of Materials in Earthwork Construction (TR-501)

Implementation of Intelligent Compaction Performance-Based Specifications in Minnesota

Investigation of Soil Stabilization Alternatives: Texas SH 130 (Phase I, Laboratory)

Design Guide for Improved Quality of Roadway Subgrades and Subbases (TR-525)

Investigation of Dual Roller-Integrated MDP/CMV Compaction Monitoring Technologies and Measurement Influence Depth

Compaction Forecasting, Development, Validation, and Application Research

Performance Evaluation of Concrete Pavement Granular Subbase: Pavement Surface Condition Evaluation (TR-554)

Measurements of Seasonal Changes and Spatial Variation in Pavement Subgrade Support Properties: A Link to Pavement Performance (TR-516)

Laboratory Kneading Compactor Evaluation and In Situ Measurements Database Development

Develop Onboard Machine Technology for Real-Time Determination of Soil Water Content

Embankment Quality, Phase 4: Application to Unsuitable Soils (TR-492)

Investigation of Steel Stringer Bridges: Superstructures and Substructures, Vol II (TR-522)

Effective Shoulder Design and Maintenance (TR-531)

Field Study of Compaction Monitoring Systems: Self-Propelled Non-Vibratory 825G and Vibratory Smooth Drum CS-533E Rollers

Field Validation of Intelligent Compaction Monitoring Technology for Unbound Materials and HMA

Field Evaluation of Compaction Monitoring Technology: Phase II

Investigation of Improved Utility Cut Repair Techniques to Reduce Settlement in Repaired Areas (TR-503)

Innovative Solutions for Slope Stability Reinforcement and Characterization in Iowa Soils (TR-489)

Self-Consolidating Concrete: Applications for Slip Form Paving, Phase 1

Applications for Reuse of Lime Sludge from Water Softening (TR-535)

Review of Stability Berm Alternatives for Environmentally Sensitive Areas

A Pilot Study to Investigate the Use of Aggregate Screenings in Roadway Construction

Synthesis of Non-Destructive Testing Technologies for Geomaterial Applications

Fly Ash Soil Stabilization for Non-Uniform Subgrade Soils (TR-461)

Identification of the Best Practices for the Design, Construction, and Repair of Bridge Approach Sections

Cost Comparison of Treatments Used to Maintain or Upgrade Aggregate Roads

Field Evaluation of Compaction Monitoring Technology: Phase I (TR-495)

Determination of the Optimum Base Characteristics for Pavements (TR-482)

Evaluation of Rammed Aggregate Piers for Highway Applications in Iowa Soils (TR-443)

Embankment Quality, Phase 3 (TR-401)

Embankment Quality, Phase 2 (TR-401)

Embankment Quality: Phase I and Phase II