For more than 50 years, the Local Road Research Board (LRRB) has brought important developments to transportation engineers throughout Minnesota. Those developments range from new ways to determine pavement strength to innovative methods for engaging the public. Today, the LRRB remains true to its important mission: supporting and sharing the latest transportation research applications with the state’s city and county engineers.

Pothole Patching Proven Practices 2025
5:49
Pothole Patching Proven Practices 2025
Roundabout Ready Drive, Walk, Pedal Right!
4:49
Roundabout Ready Drive, Walk, Pedal Right!
Transitioning to EV Fleets: Best Practices and a Decision Tool
1:17:58
Transitioning to EV Fleets: Best Practices and a Decision Tool
Best Practices for Dust Control in Minnesota
1:10
Best Practices for Dust Control in Minnesota
Building and Maintaining Gravel Roads
41:23
Building and Maintaining Gravel Roads
MnDOT Library clip
1:58
MnDOT Library clip
Guidelines for Determining Speed Limits on Municipal Roadways
3:47
Guidelines for Determining Speed Limits on Municipal Roadways
Best Practices for Boulevard Tree Selection
1:41
Best Practices for Boulevard Tree Selection
Stay in Your Lane - App to Warn Drivers of Unintentional Lane Departure
55:35
Stay in Your Lane - App to Warn Drivers of Unintentional Lane Departure
Implementing Mini-Roundabouts
1:42
Implementing Mini-Roundabouts
Webinar: Methods for Maintaining Pavement Marking Retroreflectivity
30:39
Webinar: Methods for Maintaining Pavement Marking Retroreflectivity
Transportation Careers - Social Media - Work Life Balance
0:13
Transportation Careers - Social Media - Work Life Balance
Transportation Careers - Social Media - Working Outside
0:12
Transportation Careers - Social Media - Working Outside
Transportation Careers - Social Media - Built Environment
0:14
Transportation Careers - Social Media - Built Environment
Transportation Careers - Social Media - Controlled Burns
0:14
Transportation Careers - Social Media - Controlled Burns
Transportation Careers - Social Media - Explore Your Interests
0:14
Transportation Careers - Social Media - Explore Your Interests
Transportation Careers - Social Media - Improving Accessibility
0:08
Transportation Careers - Social Media - Improving Accessibility
Transportation Careers - Connected and Automated Vehicles and Planning
3:52
Transportation Careers - Connected and Automated Vehicles and Planning
Transportation Careers - Environmental Stewardship
2:58
Transportation Careers - Environmental Stewardship
Transportation Careers - Bridge Inspection
3:44
Transportation Careers - Bridge Inspection
Transportation Careers - Road Maintenance
4:01
Transportation Careers - Road Maintenance
Intelligent Warning Devices
1:52
Intelligent Warning Devices
Using Automatic Vehicle Location Systems
14:54
Using Automatic Vehicle Location Systems
Best Practices for Managing Stormwater in Minnesota
1:21
Best Practices for Managing Stormwater in Minnesota
The Minnesota Local Road Research Board (1995)
11:33
The Minnesota Local Road Research Board (1995)
LRRB - Full Depth Reclamation for Urban and Suburban Street Applications
3:49
LRRB - Full Depth Reclamation for Urban and Suburban Street Applications
GIS Tools and Apps for Asset Management
1:15
GIS Tools and Apps for Asset Management
High Friction Surface Treatment Demonstration
1:01
High Friction Surface Treatment Demonstration
Managing Utility Congestion Within Rights-of-Way (Guidebook 2020RIC20G)
1:08
Managing Utility Congestion Within Rights-of-Way (Guidebook 2020RIC20G)
Webinar: A Guide to Successfully Convert Severely Distressed Paved Roads to Engineered Unpaved Roads
1:12:25
Webinar: A Guide to Successfully Convert Severely Distressed Paved Roads to Engineered Unpaved Roads