State Overview · 2025 Data
North Dakota Bridge Conditions
North Dakota has 4.3K bridges in the FHWA National Bridge Inventory. 1.8K (41.2%) are structurally deficient. Average bridge age is 49 years with an average Condition Score of 45/100.
4.3K
Total Bridges
41.2%
Deficient
49 yrs
Avg Age
45
Avg Score