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All Places > Departments of Transportation > Blog > Author: RAyers-esristaff

Despite billions of dollars in annual federal, state and local funds directed toward the maintenance of existing bridges, 68,842 bridges – representing more than 11 percent of total highway bridges in the U.S. – are classified as “structurally deficient,” according to the Federal Highway Administration (FHWA). Structurally deficient bridges require significant maintenance, rehabilitation or replacement. A number of bridges also exceed their expected lifespan of 50 years. The average age of an American bridge is 42 years.


This story map, entitled Answering Critical Questions about Critical Infrastructure: Bridges delivers compelling insight to the condition for one our nation's most important pieces of infrastructure, our bridges.


For more information on the subject from national advocacy and associations, please visit Transportation for America and National Association of Counties.

An Esri team of subject matter experts and software engineers continue to expand and build upon the ArcGIS Platform to support Smart Communities around the world. Building smart communities reflects national, state, regional, and local governments' desire to improve quality of life. When we consider public transit (like buses and subways), these system serve the people of a city by providing access to jobs, education, shopping, healthcare, recreation, and more. Traffic congestion, climate change, and the evolving economy and population of cities has created a greater need than ever to understand how well transit is serving these needs. Explore some of the ArcGIS resources which are available out of the box for public transit agencies to build smart communities.


Resources for ArcGIS and Public Transit