State Overview · 2025 Data
Montana Bridge Conditions
Montana has 5.2K bridges in the FHWA National Bridge Inventory. 757 (14.5%) are structurally deficient. Average bridge age is 48 years with an average Condition Score of 63/100.
5.2K
Total Bridges
14.5%
Deficient
48 yrs
Avg Age
63
Avg Score