Structurally Deficient Bridges

Safe and efficient transportation of people and goods are essential to an economically vibrant region. The network of roads and bridges must continue to be developed and maintained as both are degraded by use and weather over time. Bridges are considered structurally deficient through a rating system developed by the Association of State Highway and Transportation Officials (AASHTO). A bridge is deemed “structurally deficient” when it scores poorly on “structural adequacy, functional obsolescence and serviceability” by the Massachusetts Department of Transportation (MassDOT). Since 2008, MassDOT’s Accelerated Bridge Program sought to identify and reduce the number of structurally deficient bridges across the state, several of which are located across the Pioneer Valley. This indicator measures the total number of bridges deemed structurally deficient within the region. The data was only available for bridges eligible for federal aid.