Search MnDOT and the Local Road Research Board (LRRB) projects ui-button Enter text to search for research topics, report numbers, and researcher names. Boolean operators (And, Or, Not) can be used to further refine your search. Search for:Category:All available categoriesAdministrativeBridge and StructuresEnvironmentalMaintenance OperationsMaterials and ConstructionMultimodalPolicy and PlanningTraffic and Safety All available categoriesAdministrativeBridge and StructuresEnvironmentalMaintenance OperationsMaterials and ConstructionMultimodalPolicy and PlanningTraffic and SafetyYear:All available years202020192018201720162015201420132012201120102009200820072006200520042003200220012000Unknown All available years202020192018201720162015201420132012201120102009200820072006200520042003200220012000UnknownProject Status: Active CompleteSearch Not finding what you are looking for? Click here for other items on the LRRB website.