INDOT’s bridge network includes more than 5,700 bridges and over 55 million square feet of bridge deck. This includes all bridges within the National Bridge Inventory that INDOT owns or is responsible for maintaining, including those on interstates, non-interstate National Highway System (NHS) roads, non-NHS roads, and border bridges.
Using historical analysis on bridge replacement costs, INDOT estimates a need of over $15 billion to rebuild every bridge within its network, and a need of almost $17 billion when including NHS bridges not owned by INDOT. Therefore, we use data-driven decision making to identify the most cost-effective improvement projects for our bridges.
INDOT’s Bridge Asset Management Office is responsible for developing and implementing these cost-effective bridge strategies, and INDOT’s Bridge Inspection Office oversees all aspects of the bridge inspection process to support asset management.
Learn about assessing bridge conditions here.
