The Minnesota Department of Transportation (Mn/DOT) manages an inventory of more than
19,000 structures. In response to 2010 state legislation, the Bridge Replacement and Improvement Management
(BRIM) system was developed as a tool to rank potential bridge projects by directly considering the risk
of an interruption to service in Mn/DOT’s long term planning process. As a functioning communicative tool,
this database will help project stakeholders to understand how Mn/DOT prioritizes and programs bridge
projects for future contracts. The database and tool contain a risk assessment model to provide a consistent
rating and ranking of Minnesota bridges using the principles of risk management. BRIM consists of a set of
risk evaluation models that consider the major natural and man-made hazards affecting the bridge inventory:
advanced deterioration of deck, superstructure, and substructure; scour; fracture criticality; fatigue; overweight
and over-height trucks